Archive for the ‘Bone Marrow Stem Cells’ Category

ScienceDaily (Apr. 24, 2012) Although people generally talk about cancer, it is clear that the disease occurs in a bewildering variety of forms. Even single groups of cancers, such as those of the white blood cells, may show widely differing properties. How do the various cancers arise and what factors determine their progression? Clues to these two issues, at least for leukemias, have now been provided by Boris Kovacic and colleagues at the University of Veterinary Medicine, Vienna (Vetmeduni Vienna). The results are published in the current issue of the journal EMBO Molecular Medicine and have extremely important consequences for the treatment of a particularly aggressive type of leukemia.

It is well known that many types of cancer arise as a result of a mutation within a cell and prevailing wisdom has held that the stage of differentiation of this cell determines exactly what form of cancer develops. For example, it was believed that so-called chronic myeloid leukemia or CML arises from bone marrow stem cells, while a different type of leukemia, known as B-cell acute lymphoid leukemia or B-ALL, results from B-cell precursors. This belief has been spectacularly refuted by the latest results from Boris Kovacic and colleagues in the Vetmeduni Viennas institutes of Animal Breeding and Genetics and of Pharmacology and Toxicology.

The researchers have now shown that both CML and B-ALL arise from the most primordial kind of blood cell (long-term haematopoietic stem cells), although the pathways by which the diseases progress are different. The usual causes of CML and B-ALL are two highly related versions of the same oncogene, BCR/ABL. If the primordial blood cells are transformed or made potentially cancerous by a particular version of BCR/ABL, for technical reasons termed BCR/ABLp210, the result is chronic myeloid leukemia or CML. The long-term haematopoietic stem cells remain and act as the dreaded cancer stem cells, or CSCs, which ensure that the disease persists. Curing chronic myeloid leukemia requires the complete elimination of the CSCs. However, if the long-term haematopoietic stem cells are transformed by a related version of BCR/ABL, BCR/ABLp185, the result is a highly aggressive form of leukemia, B-ALL. The finding that B-ALL actually originates from the same stem cells as CML was both unexpected and highly provocative.

Kovacic and colleagues have shown further that B-ALL only develops if the transformed stem cell is exposed to a particular growth factor, interleukin-7. If interleukin-7 is present (it usually is), the transformed long-term haematopoietic stem cells undergo a differentiation step to CSCs, which in this case correspond to pro-B cells. If interleukin-7 is absent during the initial phase of transformation, B-ALL cannot develop.

In other words, two distinct types of cell are involved in leukemia development, the primordial cells (also termed the cells of origin of cancer) and the cancer stem cells that cause the disease to progress. Unless the CSCs are eliminated, fresh cancer cells can arise at any time and the leukemia will recur. The problem is that current leukemia therapies are not designed to target CSCs. The primordial CSCs in CML are highly quiescent and thus difficult to target. In contrast, the CSCs in B-ALL are abundant and have a high turnover rate, which makes them susceptible to treatment. Treatment of B-ALL may thus succeed in eliminating most CSCs but if even a single cell remains intact it is likely that the patient will relapse, possibly with an even more aggressive form of leukemia. A therapy that targets the bulk of tumour cells will not work, as Kovacic succinctly summarizes his results. To treat B-ALL successfully it will be necessary for us to learn much more about the development of the disease. A combined therapy is required, so future work should aim at developing drugs that target the long-term haematopoietic stem cells from which B-ALL is derived.

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The above story is reprinted from materials provided by Veterinrmedizinische Universitt Wien, via AlphaGalileo.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

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Leukemia cells have a remembrance of things past

Public release date: 24-Apr-2012 [ | E-mail | Share ]

Contact: Dr Boris Kovacic Boris.Kovacic@vetmeduni.ac.at 43-125-077-5622 University of Veterinary Medicine -- Vienna

Although people generally talk about "cancer", it is clear that the disease occurs in a bewildering variety of forms. Even single groups of cancers, such as those of the white blood cells, may show widely differing properties. How do the various cancers arise and what factors determine their progression? Clues to these two issues, at least for leukaemias, have now been provided by Boris Kovacic and colleagues at the University of Veterinary Medicine, Vienna (Vetmeduni Vienna). The results are published in the current issue of the journal EMBO Molecular Medicine and have extremely important consequences for the treatment of a particularly aggressive type of leukaemia.

It is well known that many types of cancer arise as a result of a mutation within a cell and prevailing wisdom has held that the stage of differentiation of this cell determines exactly what form of cancer develops. For example, it was believed that so-called chronic myeloid leukaemia or CML arises from bone marrow stem cells, while a different type of leukaemia, known as B-cell acute lymphoid leukaemia or B-ALL, results from B-cell precursors. This belief has been spectacularly refuted by the latest results from Boris Kovacic and colleagues in the Vetmeduni Vienna's institutes of Animal Breeding and Genetics and of Pharmacology and Toxicology.

The researchers have now shown that both CML and B-ALL arise from the most primordial kind of blood cell (long-term haematopoietic stem cells), although the pathways by which the diseases progress are different. The usual causes of CML and B-ALL are two highly related versions of the same oncogene, BCR/ABL. If the primordial blood cells are transformed or made potentially cancerous by a particular version of BCR/ABL, for technical reasons termed BCR/ABLp210, the result is chronic myeloid leukaemia or CML. The long-term haematopoietic stem cells remain and act as the dreaded cancer stem cells, or CSCs, which ensure that the disease persists. Curing chronic myeloid leukaemia requires the complete elimination of the CSCs. However, if the long-term haematopoietic stem cells are transformed by a related version of BCR/ABL, BCR/ABLp185, the result is a highly aggressive form of leukaemia, B-ALL. The finding that B-ALL actually originates from the same stem cells as CML was both unexpected and highly provocative.

Kovacic and colleagues have shown further that B-ALL only develops if the transformed stem cell is exposed to a particular growth factor, interleukin-7. If interleukin-7 is present (it usually is), the transformed long-term haematopoietic stem cells undergo a differentiation step to CSCs, which in this case correspond to pro-B cells. If interleukin-7 is absent during the initial phase of transformation, B-ALL cannot develop.

In other words, two distinct types of cell are involved in leukaemia development, the primordial cells (also termed the cells of origin of cancer) and the cancer stem cells that cause the disease to progress. Unless the CSCs are eliminated, fresh cancer cells can arise at any time and the leukaemia will recur. The problem is that current leukaemia therapies are not designed to target CSCs. The primordial CSCs in CML are highly quiescent and thus difficult to target. In contrast, the CSCs in B-ALL are abundant and have a high turnover rate, which makes them susceptible to treatment. Treatment of B-ALL may thus succeed in eliminating most CSCs but if even a single cell remains intact it is likely that the patient will relapse, possibly with an even more aggressive form of leukaemia. "A therapy that targets the bulk of tumour cells will not work," as Kovacic succinctly summarizes his results. "To treat B-ALL successfully it will be necessary for us to learn much more about the development of the disease. A combined therapy is required, so future work should aim at developing drugs that target the long-term haematopoietic stem cells from which B-ALL is derived."

###

The paper "Diverging fates of cells of origin in acute and chronic leukemia" by Boris Kovacic, Andrea Hoelbl, Gabriele Litos, Memetcan Alacakaptan, Christian Schuster, Katrin M. Fischhuber, Marc A. Kerenyi, Gabriele Stengl, Richard Moriggl, Veronika Sexl and the late Hartmut Beug is published in the current issue of the journal "EMBO Molecular Medicine" (2012, Vol. 4 pp. 283-297).

The work was initiated at the Research Institute of Molecular Pathology (IMP) and was performed together with groups at the Medical University of Vienna and the Ludwig Boltzmann Institute for Cancer Research in Vienna.

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Leukaemia cells have a remembrance of things past

ScienceDaily (Apr. 24, 2012) Although people generally talk about cancer, it is clear that the disease occurs in a bewildering variety of forms. Even single groups of cancers, such as those of the white blood cells, may show widely differing properties. How do the various cancers arise and what factors determine their progression? Clues to these two issues, at least for leukemias, have now been provided by Boris Kovacic and colleagues at the University of Veterinary Medicine, Vienna (Vetmeduni Vienna). The results are published in the current issue of the journal EMBO Molecular Medicine and have extremely important consequences for the treatment of a particularly aggressive type of leukemia.

It is well known that many types of cancer arise as a result of a mutation within a cell and prevailing wisdom has held that the stage of differentiation of this cell determines exactly what form of cancer develops. For example, it was believed that so-called chronic myeloid leukemia or CML arises from bone marrow stem cells, while a different type of leukemia, known as B-cell acute lymphoid leukemia or B-ALL, results from B-cell precursors. This belief has been spectacularly refuted by the latest results from Boris Kovacic and colleagues in the Vetmeduni Viennas institutes of Animal Breeding and Genetics and of Pharmacology and Toxicology.

The researchers have now shown that both CML and B-ALL arise from the most primordial kind of blood cell (long-term haematopoietic stem cells), although the pathways by which the diseases progress are different. The usual causes of CML and B-ALL are two highly related versions of the same oncogene, BCR/ABL. If the primordial blood cells are transformed or made potentially cancerous by a particular version of BCR/ABL, for technical reasons termed BCR/ABLp210, the result is chronic myeloid leukemia or CML. The long-term haematopoietic stem cells remain and act as the dreaded cancer stem cells, or CSCs, which ensure that the disease persists. Curing chronic myeloid leukemia requires the complete elimination of the CSCs. However, if the long-term haematopoietic stem cells are transformed by a related version of BCR/ABL, BCR/ABLp185, the result is a highly aggressive form of leukemia, B-ALL. The finding that B-ALL actually originates from the same stem cells as CML was both unexpected and highly provocative.

Kovacic and colleagues have shown further that B-ALL only develops if the transformed stem cell is exposed to a particular growth factor, interleukin-7. If interleukin-7 is present (it usually is), the transformed long-term haematopoietic stem cells undergo a differentiation step to CSCs, which in this case correspond to pro-B cells. If interleukin-7 is absent during the initial phase of transformation, B-ALL cannot develop.

In other words, two distinct types of cell are involved in leukemia development, the primordial cells (also termed the cells of origin of cancer) and the cancer stem cells that cause the disease to progress. Unless the CSCs are eliminated, fresh cancer cells can arise at any time and the leukemia will recur. The problem is that current leukemia therapies are not designed to target CSCs. The primordial CSCs in CML are highly quiescent and thus difficult to target. In contrast, the CSCs in B-ALL are abundant and have a high turnover rate, which makes them susceptible to treatment. Treatment of B-ALL may thus succeed in eliminating most CSCs but if even a single cell remains intact it is likely that the patient will relapse, possibly with an even more aggressive form of leukemia. A therapy that targets the bulk of tumour cells will not work, as Kovacic succinctly summarizes his results. To treat B-ALL successfully it will be necessary for us to learn much more about the development of the disease. A combined therapy is required, so future work should aim at developing drugs that target the long-term haematopoietic stem cells from which B-ALL is derived.

Share this story on Facebook, Twitter, and Google:

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Story Source:

The above story is reprinted from materials provided by Veterinrmedizinische Universitt Wien, via AlphaGalileo.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

See the original post here:
Leukemia cells have a remembrance of things past

Public release date: 18-Apr-2012 [ | E-mail | Share ]

Contact: David Eve celltransplantation@gmail.com Cell Transplantation Center of Excellence for Aging and Brain Repair

Tampa, Fla. (April. 18, 2012) Autologous (self-donated) mononuclear cells derived from bone marrow (BMMNCs) have been found to significantly induce vascular growth when transplanted into patients with diabetes who are suffering from critical limb ischemia caused by peripheral artery disease (PAD), a complication of diabetes. The team of researchers in Seville, Spain who carried out the study published their results in a recent issue of Cell Transplantation (20:10), now freely available on-line at http://www.ingentaconnect.com/content/cog/ct/.

"Critical limb ischemia in diabetic patients is associated with high rates of morbidity and mortality; however, neovascularization induced by stem cell therapy could be a useful approach for these patients," said study corresponding author Dr. Bernat Soria of the Andaluz Center for Biologic and Molecular Regenerative Medicine in Seville, Spain. "In this study we evaluated the safety and efficacy of inter-arterial administration of autologous bone marrow-derived mononuclear cells with 20 diabetic patents with severe below-the-knee arterial ischemia."

The researchers noted that surgical or endovascular revascularization options for patients such as those in the study are limited because of poor arterial outflow. Although optimum dose, source and route of administration were outstanding questions, proper BMMNC dose for best results was an issue that the researchers hoped to clarify. They subsequently used a dose ten times smaller than other researchers had used previously in similar studies.

According to the authors, the rationale for their study was that intra-arterial infusions of autologous BMMNCs contain endothelial progenitors that are locally profuse at severely diseased vascular beds in the lower limb. Their hope was that the BMMNCs could promote early and effective development of new vascularization.

Patients were evaluated at three months and twelve months post-transplantation.

"As previously reported, the one-year mortality rate for diabetic patients with PAD - most of which are associated with cardiac complications - has been found to be 20 percent," explained Dr. Soria. "Our study documented significant increases in neovasculogenesis for the majority of our study patients and a decrease in the number of amputations. However, overall PAD mortality for our patients was similar to that generally experienced."

The researchers concluded that BMMNC therapy for lower limb ischemia was a "safe procedure that generates a significant increase in the vascular network in ischemic areas" and promotes "remarkable clinical improvement."

"While this study did not demonstrate a significant effect on mortality, it does suggest an improvement in the quality of life based on limb retention as shown by the significant reduction in the number of amputations", said Amit N. Patel, director of cardiovascular regenerative medicine at the University of Utah and section editor for Cell Transplantation.

Original post:
Autologous bone marrow-derived mononuclear cell transplants can reduce diabetic amputations

Editor's Choice Main Category: Stem Cell Research Also Included In: Heart Disease Article Date: 14 Apr 2012 - 8:00 PDT

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The ORMC's leading researcher for the clinical trial, Vijaykumar S. Kasi, MD, PhD, an interventional cardiologist, director, Cardiovascular Research, explains:

The PreSERVE-AMI Study assesses the efficacy and safety of infusing stem cells obtained from a patient's bone marrow into the artery in the heart, which may have caused the heart attack in patients who received a stent to open the blocked artery after a specific heart attack history, such as STEMI.

A ST-Segment Elevation Myocardial Infarction (STEMI) is a critical type of heart attack that occurs due to the blood supply to the heart being blocked for a prolonged period of time, which affects a large area of the heart muscle and causes changes in the blood levels of key chemical markers.

The national, randomized, double blinded and placebo controlled study will involve approximately 160 patients, at about 34 sites, to evaluate the efficacy and safety of infusing stem cells obtained from a patient's bone marrow into the artery in the heart that may have caused the heart attack.

The surgeons will first insert a catheter into an incision in the patient's groin. Guided by an x-ray camera, the doctors will then position the catheter in the location of the heart artery where the stent was placed, before inflating a balloon within the stent and infusing either AMR-001, a cell therapy product comprised of stem cells taken from the patient's own bone marrow, or a placebo into the affected area.

Before the infusion is made, the patients undergo various tests, including an electrocardiogram, a cardiac MRI and a cardiac nuclear test. After the patient has received all screenings required, the doctors will perform a mini-bone marrow procedure, in which they remove stem cells from the bone marrow of the patient's pelvic bone with a special needle. The stem cells are subsequently processed in preparation for infusion. The bone marrow of patients randomized to receive placebo will be frozen and stored in case they require bone marrow for any reason.

More here:
Restoring Heart Muscle Function With Pelvic Bone Stem Cells

By: Mahita Gajanan / Staff Writer

Posted on 30. Mar, 2012 in News

For one Pitt alumnus, a simple cheek swab was enough to begin a process that would eventually help save a childs life.

In 2010, Jenna Tamburro, then a sophomore, registered at Pitts first annual bone marrow drive sponsored by the Nursing Student Association through DKMS, a bone marrow donation center.

The next year, Tamburro found out she was a potential match for a cancer patient, and after some blood work and a physical, discovered that her bone marrow was suitable to be transplanted into a patient.

This year, NSA will hold its third bone marrow drive with DKMS on April 2 and 3 from 9 a.m. to 5 p.m. in the William Pitt Union. Nursing students Rebecca Sponberg, Lindsey Pretsch and Jarae Payne organized the event.

At the drive, students who are interested in donating bone marrow will have a nurse swab the inside of their cheek with a cotton swab. The interior lining of the cheek provides a persons human leukocyte antigen, a protein on the bodys cells that allows the immune system to recognize the cells as its own, said Sponberg, the vice president of NSA. This test will allow potential candidates to find out if they are eligible to donate bone marrow.

Its important that the donors HLA matches the recipients HLA so the immune system will accept it, Sponberg, a sophomore, said.

Sponberg said that in the past two years, 604 students have registered as donors. Out of the 604, 19 students have been contacted as actual matches and 6 of the 19 have gone through the marrow donation process. None of the organizers could estimate how many people they are expecting to register this year.

I thought it was so crazy that I got matched, Tamburro, who now works at Phipps Conservatory, said. I was shocked when it happened, but then actually really excited.

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Nursing Student Association hosts bone marrow drive

RANCHO CORDOVA, Calif., March 29, 2012 /PRNewswire/ -- ThermoGenesis Corp. (NASDAQ: KOOL - News), a leading supplier of innovative products and services that process and store adult stem cells, said today that its customer Beike Biotechnology Co., Ltd. (Beike) has become the first company in China to receive accreditation from the AABB (formerly the American Association of Blood Banks). AABB is an international, not-for-profit association representing nearly 2,000 institutions and 8,000 individuals involved in the fields of transfusion medicine and cellular therapies.

A leading stem cell and regenerative medicine company in China, Beike will be using ThermoGenesis' AXP AutoXpress (AXP) and BioArchive Systems for the processing and storage of stem cells from cord blood. The Company expects the AXP device to receive registration approval in China during the current year.

Beike produces a full line of products derived from umbilical cord tissue, cord blood and bone marrow stem cells. It also operates three stand-alone cord blood processing and storage facilities, 18 specialized laboratories processing cord blood collection, five stem cell banks and two stem cell research laboratories.

"This AABB accreditation represents a major accomplishment for Beike and demonstrates its leadership position in China's regenerative medicine sector. It provides Beike a strong platform from which to further develop what we believe will be an increasingly prosperous cord blood stem cell market in China. We are pleased to be providing them our market leading tools to realize their strategy," said Matthew Plavan, Chief Executive Officer of ThermoGenesis.

"We are delighted to become the first bank in China to receive AABB accreditation for the processing and storage of cord blood and cord tissue. Our adoption of the AXP and BioArchive technologies is a critical component of our market vision to become the country's technology and quality leader in cord blood processing and storage," said Dr. Shengqin Ye, Chief Executive Officer of Beike.

About ThermoGenesis Corp.

ThermoGenesis Corp. (www.thermogenesis.com) is a leader in developing and manufacturing automated blood processing systems and disposable products that enable the manufacture, preservation and delivery of cell and tissue therapy products. These include:

This press release contains forward-looking statements. These statements involve risks and uncertainties that could cause actual outcomes to differ materially from those contemplated by the forward-looking statements. Several factors including timing of FDA and foreign regulatory approvals, changes in customer forecasts, our failure to meet customers' purchase order and quality requirements, supply shortages, production delays, changes in the markets for customers' products, introduction timing and acceptance of our new products scheduled for fiscal year 2012, and introduction of competitive products and other factors beyond our control could result in a materially different revenue outcome and/or in our failure to achieve the revenue levels we expect for fiscal 2012. A more complete description of these and other risks that could cause actual events to differ from the outcomes predicted by our forward-looking statements is set forth under the caption "Risk Factors" in our annual report on Form 10-K and other reports we file with the Securities and Exchange Commission from time to time, and you should consider each of those factors when evaluating the forward-looking statements.

ThermoGenesis Corp. Web site: http://www.thermogenesis.com Contact: Investor Relations +1-916-858-5107, or ir@thermogenesis.com

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ThermoGenesis Announces AABB Accreditation for Cord Blood Products Customer in China

Arkansas State University-Newport will host a Bone Marrow Donor Drive on campus Thursday, March 29 from 10am until 7pm and Saturday, March 31 from 9am until 1pm in the Student/Community Center, Merchants & Planters Insurance and Investments room. A bone marrow transplant is a lifesaving treatment for people with leukemia, lymphoma and many other diseases. First, patients undergo chemotherapy and sometimes radiation to destroy their diseased marrow. Then a donor's healthy blood-forming stem cells are transfused directly into the patient's bloodstream, where they can begin to function and multiply. For a patient's body to accept these healthy cells, the patient needs a donor who is a close match. Seventy percent of patients cannot find a matching donor within their family and depend on the national registry to find an unrelated bone marrow donor. Even with a registry of millions, 6 out of 10 patients NEVER receive the lifesaving transplant they need. Donors of all ethnicities are needed to change this. To see if you can be a bone marrow donor and to read about the process of testing and donating, go to http://www.dkmsamericas.org and click on Get Educated.

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ASUN to host Bone Marrow Donor Drive

Volunteers will stake out locations all over Athens today from the downtown Waffle House at 2 a.m., to Athens City Hall at 4 p.m. to encourage people across the city to register for a bone marrow donor list in the hopes of finding a match for two sick locals.

The need is even more urgent because former Clarke County school nurse Thomasene Smith and Athens Academy sixth-grader Kajal Patel are minorities, said Caitlin Martin, a representative of Be The Match, the national bone marrow donor registry program. Be The Match, the University of Georgia, the Omni Club and Athens Academy have joined together to host a marathon, continuing today at locations across Athens, to help find donors for Smith and Patel by signing more people to the donor registry list.

Minorities have such a poor chance of finding a match because more than 90 percent of the people signed up for the registry are white, Martin said.

Race matters when trying to find a match for a bone marrow donation, and often, family members arent the best fit, Martin said.

Only 30 percent of our patrons have matches within their family, she said.

Holding the marathon for Smith and Patel will help people of minority groups learn that sick people need them to register for the bone marrow donor list, said Kelin Johnson, Omni Ambassador and former Georgia defense back.

Once people know that race matters when finding a bone marrow donor, more donors likely will come forward, Johnson said.

I think it just comes from a lack of education or awareness, he said.

Potential donors might also shy away from registering because they think the process will hurt too much, Martin said.

One of the biggest myths is that its painful, and thats not true, she said.

View original post here:
Volunteers work 'round the clock to find bone marrow donors

Displaying rare unanimity on an issue, the full U.S. 9th Circuit Court of Appeals on Tuesday rejected a request by the federal government thatit reconsidera rulingthat most bone marrow donors can be compensated for providing life-saving marrow stem cells from their blood.

A three-judge panel of the appeals court ruled on Dec. 1 that the process of harvesting marrow cells by filtering a donor's blood wasn't covered by the 1984 National Organ Transplant Act's prohibitionof payment for organs or organ parts.The statute was enacted by Congress before the blood-filtering process was developed and donors were subjected to painful and medically risky surgical extraction of marrow by insertion of a siphoning needle into the hip bone. Compensation for that form of donation remains illegal.

Atty. Gen. Eric H. Holder Jr., on behalf of the federal government, petitioned the court in Januaryfor a new hearing by an 11-judge panel. Department of Justice lawyers argued that the December ruling ignored the clear intent of Congress to prevent money from influencing donation decisions.

The 9th Circuit panel said in its latest ruling thatall 25 active judges on the court were informed of the government's request and none called for a vote on it, signaling their agreement with the December decision. That unusualaccord among the judges who span a broad ideological spectrum might also indicate that the U.S. Supreme Court will be unlikely to take the case for review.

The lawsuit challenging the ban on bone marrow compensation was brought by a group of cancer patients and their families, as well as a marrow transplant specialist and a California nonprofit organization, MoreMarrowDonors.org, aiming to expand the registry of available donors by offering up to $3,000 in housing assistance or scholarships for promising genetic matches.

Violation of the organ transplant act's prohibition on sales of organs or parts thereofcarries heavy fines and up to five years in prison.The 1984 act defined bone marrow as an organ part, while the 9th Circuit's ruling said it was a blood part and not subject to theban on compensation.

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Read the original:
Appeals court stands united on compensation for bone marrow donors

Volunteers will stake out locations all over Athens today from the downtown Waffle House at 2 a.m., to Athens City Hall at 4 p.m. to encourage people across the city to register for a bone marrow donor list in the hopes of finding a match for two sick locals.

The need is even more urgent because former Clarke County school nurse Thomasene Smith and Athens Academy sixth-grader Kajal Patel are minorities, said Caitlin Martin, a representative of Be The Match, the national bone marrow donor registry program. Be The Match, the University of Georgia, the Omni Club and Athens Academy have joined together to host a marathon, continuing today at locations across Athens, to help find donors for Smith and Patel by signing more people to the donor registry list.

Minorities have such a poor chance of finding a match because more than 90 percent of the people signed up for the registry are white, Martin said.

Race matters when trying to find a match for a bone marrow donation, and often, family members arent the best fit, Martin said.

Only 30 percent of our patrons have matches within their family, she said.

Holding the marathon for Smith and Patel will help people of minority groups learn that sick people need them to register for the bone marrow donor list, said Kelin Johnson, Omni Ambassador and former Georgia defense back.

Once people know that race matters when finding a bone marrow donor, more donors likely will come forward, Johnson said.

I think it just comes from a lack of education or awareness, he said.

Potential donors might also shy away from registering because they think the process will hurt too much, Martin said.

One of the biggest myths is that its painful, and thats not true, she said.

See the original post here:
Volunteers work 'round the clock to find bone marrow donors

Displaying rare unanimity on an issue, the full U.S. 9th Circuit Court of Appeals on Tuesday rejected a request by the federal government thatit reconsidera rulingthat most bone marrow donors can be compensated for providing life-saving marrow stem cells from their blood.

A three-judge panel of the appeals court ruled on Dec. 1 that the process of harvesting marrow cells by filtering a donor's blood wasn't covered by the 1984 National Organ Transplant Act's prohibitionof payment for organs or organ parts.The statute was enacted by Congress before the blood-filtering process was developed and donors were subjected to painful and medically risky surgical extraction of marrow by insertion of a siphoning needle into the hip bone. Compensation for that form of donation remains illegal.

Atty. Gen. Eric H. Holder Jr., on behalf of the federal government, petitioned the court in Januaryfor a new hearing by an 11-judge panel. Department of Justice lawyers argued that the December ruling ignored the clear intent of Congress to prevent money from influencing donation decisions.

The 9th Circuit panel said in its latest ruling thatall 25 active judges on the court were informed of the government's request and none called for a vote on it, signaling their agreement with the December decision. That unusualaccord among the judges who span a broad ideological spectrum might also indicate that the U.S. Supreme Court will be unlikely to take the case for review.

The lawsuit challenging the ban on bone marrow compensation was brought by a group of cancer patients and their families, as well as a marrow transplant specialist and a California nonprofit organization, MoreMarrowDonors.org, aiming to expand the registry of available donors by offering up to $3,000 in housing assistance or scholarships for promising genetic matches.

Violation of the organ transplant act's prohibition on sales of organs or parts thereofcarries heavy fines and up to five years in prison.The 1984 act defined bone marrow as an organ part, while the 9th Circuit's ruling said it was a blood part and not subject to theban on compensation.

ALSO:

Mega Millions lottery jackpot soars to $363 million

Trayvon Martin: L.A. rallies voice outrage at shooting

First defendants graduate from L.A. County Veterans Court

Continue reading here:
Appeals court stands united on compensation for bone marrow donors

Saturday, March 24, 2012

CHICAGO A research network led by a Mayo Clinic physician found that stem cells derived from heart failure patients' own bone marrow and injected into their hearts improved the function of the left ventricle, the heart's pumping chamber. Researchers also found that certain types of the stem cells were associated with the largest improvement and warrant further study.

VIDEO ALERT: Additional audio and video resources, including excerpts from an interview with Dr.Simari describing the research, are available on the Mayo Clinic News Blog.

The results were presented today at the 2012 American College of Cardiology Meeting in Chicago. They will also be published online in the Journal of the American Medical Association.

This Phase II clinical trial, designed to test this strategy to improve cardiac function, is an extension of earlier efforts in Brazil in which a smaller number of patients received fewer stem cells. For this new network study, 92 patients received a placebo or 100 million stem cells derived from the bone marrow in their hips in a one-time injection. This was the first study in humans to deliver that many bone marrow stem cells.

"We found that the bone marrow cells did not have a significant impact on the original end points that we chose, which involved reversibility of a lack of blood supply to the heart, the volume of the left ventricle of the heart at the end of a contraction, and maximal oxygen consumption derived through a treadmill test," says Robert Simari, M.D., a cardiologist at Mayo Clinic in Rochester, Minn. He is chairman of the Cardiovascular Cell Therapy Research Network (CCTRN), the network of five academic centers and associated satellite sites that conducted the study. The CCTRN is supported by the National Heart, Lung, and Blood Institute, which also funded the study.

"But interestingly, we did find that the very simple measure of ejection fraction was improved in the group that received the cells compared to the placebo group by 2.7 percent," Dr. Simari says. Ejection fraction is the percentage of blood pumped out of the left ventricle during each contraction.

Study principal investigators Emerson Perin, M.D., Ph.D., and James Willerson, M.D., of the Texas Heart Institute, explain that even though 2.7 percent does not seem like a large number, it is statistically significant and means an improvement in heart function for chronic heart failure patients who have no other options.

"This was a pretty sick population," Dr. Perin says. "They had already had heart attacks, undergone bypass surgery, and had stents placed. However, they weren't at the level of needing a heart transplant yet. In some patients, particularly those who were younger or whose bone marrows were enriched in certain stem cell populations, had even greater improvements in their ejection fractions."

The average age of study participants was 63. The researchers found that patients younger than 62 improved more. Their ejection fraction improved by 4.7 percent. The researchers looked at the makeup of these patients' stem cells from a supply stored at a biorepository established by the CCTRN. They found these patients had more CD34+ and CD133+ type of stem cells in their mixture.

Go here to read the rest:
Bone Marrow Stem Cells Improve Heart Function, Study Finds

ScienceDaily (Mar. 26, 2012) A research network led by a Mayo Clinic physician found that stem cells derived from heart failure patients' own bone marrow and injected into their hearts improved the function of the left ventricle, the heart's pumping chamber. Researchers also found that certain types of the stem cells were associated with the largest improvement and warrant further study.

The results were presented March 26 at the 2012 American College of Cardiology Meeting in Chicago. They will also be published online in the Journal of the American Medical Association.

This Phase II clinical trial, designed to test this strategy to improve cardiac function, is an extension of earlier efforts in Brazil in which a smaller number of patients received fewer stem cells. For this new network study, 92 patients received a placebo or 100 million stem cells derived from the bone marrow in their hips in a one-time injection. This was the first study in humans to deliver that many bone marrow stem cells.

"We found that the bone marrow cells did not have a significant impact on the original end points that we chose, which involved reversibility of a lack of blood supply to the heart, the volume of the left ventricle of the heart at the end of a contraction, and maximal oxygen consumption derived through a treadmill test," says Robert Simari, M.D., a cardiologist at Mayo Clinic in Rochester, Minn. He is chairman of the Cardiovascular Cell Therapy Research Network (CCTRN), the network of five academic centers and associated satellite sites that conducted the study. The CCTRN is supported by the National Heart, Lung, and Blood Institute, which also funded the study.

"But interestingly, we did find that the very simple measure of ejection fraction was improved in the group that received the cells compared to the placebo group by 2.7 percent," Dr. Simari says. Ejection fraction is the percentage of blood pumped out of the left ventricle during each contraction.

Study principal investigators Emerson Perin, M.D., Ph.D., and James Willerson, M.D., of the Texas Heart Institute, explain that even though 2.7 percent does not seem like a large number, it is statistically significant and means an improvement in heart function for chronic heart failure patients who have no other options.

"This was a pretty sick population," Dr. Perin says. "They had already had heart attacks, undergone bypass surgery, and had stents placed. However, they weren't at the level of needing a heart transplant yet. In some patients, particularly those who were younger or whose bone marrows were enriched in certain stem cell populations, had even greater improvements in their ejection fractions."

The average age of study participants was 63. The researchers found that patients younger than 62 improved more. Their ejection fraction improved by 4.7 percent. The researchers looked at the makeup of these patients' stem cells from a supply stored at a biorepository established by the CCTRN. They found these patients had more CD34+ and CD133+ type of stem cells in their mixture.

"This tells us that the approach we used to deliver the stems cells was safe," Dr. Simari says. "It also suggests new directions for the next series of clinical trials, including the type of patients, endpoints to study and types of cells to deliver."

Other co-authors of the study are Guilherme Silva, M.D., Deirdre Smith, Lynette Westbrook; and James Chen, all of the Texas Heart Institute, St. Luke's Episcopal Hospital, Houston; Carl Pepine, M.D., R. David Anderson, M.D., Christopher Cogle, M.D., and Eileen Handberg, Ph.D., all of the University of Florida School of Medicine, Gainesville; Timothy Henry, M.D., Jay Traverse, M.D., and Rachel Olson, all of the Minneapolis Heart Institute at Abbott Northwestern Hospital; Doris Taylor, Ph.D., and Claudia Zierold, Ph.D., both of the University of Minnesota School of Medicine, Minneapolis; Stephen Ellis, M.D., James Thomas, M.D., and Carrie Geither, all of The Cleveland Clinic Foundation, Ohio; David Zhao, M.D., Marvin Kornenberg, M.D., Antonis Hatzopoulos, Ph.D., Sherry Bowman, and Judy Francescon, all of Vanderbilt University School of Medicine, Tennessee; Dejian Lai, Ph.D., Sarah Baraniuk, Ph.D., Linda Piller, M.D., Lara Simpson, Ph.D., Judy Bettencourt, Shelly Sayre, Rachel Vojvodic, and Lemuel Moye, M.D., Ph.D., all of The University of Texas School of Public Health, Houston; A. Daniel Martin, Ph.D., of the University of Florida College of Public Health and Health Professions, Gainesville; Marc Penn, M.D., Ph.D., of Northeast Ohio Medical University, Akron; Saif Anwaruddin, M.D., of Penn Heart and Vascular Hospital of the University of Pennsylvania, Philadelphia; Adrian Gee, Ph.D., and David Aguilar, M.D., of Baylor College of Medicine, Houston; Catalin Loghin, M.D., of The University of Texas Medical School, Houston; and Sonia Skarlatos, Ph.D., David Gordon, M.D., Ph.D., Ray Ebert, Ph.D., and Minjung Kwak, Ph.D., all of the National Heart, Lung and Blood Institute, Bethesda, MD.

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Bone marrow stem cells can improve heart function, study suggests

By Prue Salasky

3:48 p.m. EDT, March 23, 2012

UVA recently performed the first two stem cell transplants in Virginia, using non-embryonic stem cells from umbilical cord blood. The Stem Cell Transplant Program offers both bone marrow and stem cell transplants, with a focus on cord blood, to treat leukemia, lymphoma, Hodkin's disease and other blood diseases.

The outcome isn't known yet, but in both patients the stem cells began producing new cells 14 days after the transplant instead of the 24 to 28 days it usually takes.

The cord blood comes from placentas that otherwise would be discarded following childbirth; its benefits include sidestepping ethical issues of embryonic stem cells; they're easier and faster to collect than stem cells from other sources; and they are immune tolerant (this means that they won't attack other cells in the body and match doesn't have to be exact).

Speed is important because there is a narrow window of opportunity to perform a transplant when a patient's disease is in remission.

The program is led by Mary Laughlin, who heads up a team of 29, including 4 other transplant physicians who started seeing patients in September. The program had anticipated doing 15 transplants in first year; now expects to do 100.

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Health Notes: UVA performs first stem cell transplants in Virginia

HOUSTON -

Doctors from the Texas Heart Institute at St. Luke's Episcopal Hospital have found that patients with heart failure may be able to repair the damaged areas of the heart with stem cells from the patient's own bone marrow.

Doctors presented the findings at the American College of Cardiologys 61st Annual Scientific Session Saturday.

The results are from a multi-center clinical study that measured the possible benefits of using a patients own bone marrow cells to repair damaged areas of the heart suffering from severe heart failure, a condition that affects millions of Americans.

The study, which was the largest such investigation to date, found that the hearts of the patients receiving bone marrow derived stem cells showed a small but significant increase in the ability to pump oxygenated blood from the left ventricle, the hearts main pumping chamber, to the body.

The expectation is that the study will pave the way for potential new treatment options and will be important to designing and evaluating future clinical trials.

This is exactly the kind of information we need to move forward with the clinical use of stem cell therapy, said Emerson Perin, MD, PhD, Director of Clinical Research for Cardiovascular Medicine at THI, and one of the studys lead investigators.

The bone-marrow derived stem cells are helpful to the injured heart when they are themselves biologically active, added Dr. James T. Willerson, the studys principal investigator and President and Medical Director of THI.

This study moves us one step closer to being able to help patients with severe heart failure who have no other alternatives.

The study was conducted by the Cardiovascular Cell Therapy Research Network, the national consortium to conduct such research funded by the National Institutes of Healths National Heart, Lung, and Blood Institute.

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Stem cell, heart heath study

ScienceDaily (Mar. 24, 2012) Use of a patient's bone marrow cells for treating chronic ischemic heart failure did not result in improvement on most measures of heart function, according to a study appearing in JAMA. The study is being published early online to coincide with its presentation at the American College of Cardiology's annual scientific sessions.

Cell therapy has emerged as an innovative approach for treating patients with advanced ischemic heart disease, including those with heart failure. "In patients with ischemic heart disease and heart failure, treatment with autologous [derived from the same individual] bone marrow mononuclear cells (BMCs) has demonstrated safety and has suggested efficacy. None of the clinical trials performed to date, however, have been powered to evaluate specific efficacy measures," according to background information in the article.

Emerson C. Perin, M.D., Ph.D., of the Texas Heart Institute and St. Luke's Episcopal Hospital, Houston and colleagues conducted a study to examine the effect of transendocardial administration (use of a special catheter and injection procedure to deliver stem cells to the heart muscle) of BMCs to patients with chronic ischemic heart disease and left ventricular (LV) dysfunction with heart failure and/or angina. The patients in the phase 2 randomized trial were receiving maximal medical therapy at 5 National Heart, Lung, and Blood Institute-sponsored Cardiovascular Cell Therapy Research Network (CCTRN) sites between April 2009 and April 2011. Patients were randomized to receive transendocardial injection of BMCs or placebo. The primary outcomes measured for the study, assessed at 6 months, were changes in left ventricular end-systolic volume (LVESV) assessed by echocardiography, maximal oxygen consumption, and reversibility of perfusion (blood flow) defect on single-photon emission tomography (SPECT). Of 153 patients who provided consent, a total of 92 (82 men; average age: 63 years) were randomized (n = 61 in BMC group and n = 31 in placebo group).

Analysis of data indicated no statistically significant differences between the groups for the primary end points of changes in LVESV index, maximal oxygen consumption, and reversible defect. There were also no differences in any of the secondary outcomes, including percent myocardial defect, total defect size, fixed defect size, regional wall motion (the movement of the wall of the heart during contraction), and clinical improvement.

In an exploratory analysis, the researchers did find that when LVEF was assessed, patients age 62 years or younger showed a statistically significant effect of therapy. Patients in the BMC group demonstrated an average increase in LVEF of 3.1 percent from baseline to 6 months, whereas patients in the placebo group showed a decrease of -1.6 percent.

"In the largest study to date of autologous BMC therapy in patients with chronic ischemic heart disease and LV dysfunction, we found no effect of therapy on prespecified end points. Further exploratory analysis showed a significant improvement in LVEF associated with treatment. Our findings provide evidence for further studies to determine the relationship between the composition and function of bone marrow product and clinical end points. Understanding these relationships will improve the design and interpretation of future studies of cardiac cell therapy," the authors write.

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The above story is reprinted from materials provided by JAMA and Archives Journals.

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Treatment of ischemic heart failure with bone marrow cells does not show improvement for certain heart function measures

ScienceDaily (Mar. 24, 2012) Use of a patient's bone marrow cells for treating chronic ischemic heart failure did not result in improvement on most measures of heart function, according to a study appearing in JAMA. The study is being published early online to coincide with its presentation at the American College of Cardiology's annual scientific sessions.

Cell therapy has emerged as an innovative approach for treating patients with advanced ischemic heart disease, including those with heart failure. "In patients with ischemic heart disease and heart failure, treatment with autologous [derived from the same individual] bone marrow mononuclear cells (BMCs) has demonstrated safety and has suggested efficacy. None of the clinical trials performed to date, however, have been powered to evaluate specific efficacy measures," according to background information in the article.

Emerson C. Perin, M.D., Ph.D., of the Texas Heart Institute and St. Luke's Episcopal Hospital, Houston and colleagues conducted a study to examine the effect of transendocardial administration (use of a special catheter and injection procedure to deliver stem cells to the heart muscle) of BMCs to patients with chronic ischemic heart disease and left ventricular (LV) dysfunction with heart failure and/or angina. The patients in the phase 2 randomized trial were receiving maximal medical therapy at 5 National Heart, Lung, and Blood Institute-sponsored Cardiovascular Cell Therapy Research Network (CCTRN) sites between April 2009 and April 2011. Patients were randomized to receive transendocardial injection of BMCs or placebo. The primary outcomes measured for the study, assessed at 6 months, were changes in left ventricular end-systolic volume (LVESV) assessed by echocardiography, maximal oxygen consumption, and reversibility of perfusion (blood flow) defect on single-photon emission tomography (SPECT). Of 153 patients who provided consent, a total of 92 (82 men; average age: 63 years) were randomized (n = 61 in BMC group and n = 31 in placebo group).

Analysis of data indicated no statistically significant differences between the groups for the primary end points of changes in LVESV index, maximal oxygen consumption, and reversible defect. There were also no differences in any of the secondary outcomes, including percent myocardial defect, total defect size, fixed defect size, regional wall motion (the movement of the wall of the heart during contraction), and clinical improvement.

In an exploratory analysis, the researchers did find that when LVEF was assessed, patients age 62 years or younger showed a statistically significant effect of therapy. Patients in the BMC group demonstrated an average increase in LVEF of 3.1 percent from baseline to 6 months, whereas patients in the placebo group showed a decrease of -1.6 percent.

"In the largest study to date of autologous BMC therapy in patients with chronic ischemic heart disease and LV dysfunction, we found no effect of therapy on prespecified end points. Further exploratory analysis showed a significant improvement in LVEF associated with treatment. Our findings provide evidence for further studies to determine the relationship between the composition and function of bone marrow product and clinical end points. Understanding these relationships will improve the design and interpretation of future studies of cardiac cell therapy," the authors write.

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The above story is reprinted from materials provided by JAMA and Archives Journals.

Read the original here:
Treatment of ischemic heart failure with bone marrow cells does not show improvement for certain heart function measures

Public release date: 24-Mar-2012 [ | E-mail | Share ]

Contact: Jade Waddy Jade.Waddy@uth.tmc.edu 713-500-3030 JAMA and Archives Journals

Use of a patient's bone marrow cells for treating chronic ischemic heart failure did not result in improvement on most measures of heart function, according to a study appearing in JAMA. The study is being published early online to coincide with its presentation at the American College of Cardiology's annual scientific sessions.

Cell therapy has emerged as an innovative approach for treating patients with advanced ischemic heart disease, including those with heart failure. "In patients with ischemic heart disease and heart failure, treatment with autologous [derived from the same individual] bone marrow mononuclear cells (BMCs) has demonstrated safety and has suggested efficacy. None of the clinical trials performed to date, however, have been powered to evaluate specific efficacy measures," according to background information in the article.

Emerson C. Perin, M.D., Ph.D., of the Texas Heart Institute and St. Luke's Episcopal Hospital, Houston and colleagues conducted a study to examine the effect of transendocardial administration (use of a special catheter and injection procedure to deliver stem cells to the heart muscle) of BMCs to patients with chronic ischemic heart disease and left ventricular (LV) dysfunction with heart failure and/or angina. The patients in the phase 2 randomized trial were receiving maximal medical therapy at 5 National Heart, Lung, and Blood Institutesponsored Cardiovascular Cell Therapy Research Network (CCTRN) sites between April 2009 and April 2011. Patients were randomized to receive transendocardial injection of BMCs or placebo. The primary outcomes measured for the study, assessed at 6 months, were changes in left ventricular end-systolic volume (LVESV) assessed by echocardiography, maximal oxygen consumption, and reversibility of perfusion (blood flow) defect on single-photon emission tomography (SPECT). Of 153 patients who provided consent, a total of 92 (82 men; average age: 63 years) were randomized (n = 61 in BMC group and n = 31 in placebo group).

Analysis of data indicated no statistically significant differences between the groups for the primary end points of changes in LVESV index, maximal oxygen consumption, and reversible defect. There were also no differences in any of the secondary outcomes, including percent myocardial defect, total defect size, fixed defect size, regional wall motion (the movement of the wall of the heart during contraction), and clinical improvement.

In an exploratory analysis, the researchers did find that when LVEF was assessed, patients age 62 years or younger showed a statistically significant effect of therapy. Patients in the BMC group demonstrated an average increase in LVEF of 3.1 percent from baseline to 6 months, whereas patients in the placebo group showed a decrease of 1.6 percent.

"In the largest study to date of autologous BMC therapy in patients with chronic ischemic heart disease and LV dysfunction, we found no effect of therapy on prespecified end points. Further exploratory analysis showed a significant improvement in LVEF associated with treatment. Our findings provide evidence for further studies to determine the relationship between the composition and function of bone marrow product and clinical end points. Understanding these relationships will improve the design and interpretation of future studies of cardiac cell therapy," the authors write.

###

(JAMA. 2012;307(16):doi:10.1001/jama.2012.418. Available pre-embargo to the media at http://www.jamamedia.org)

Originally posted here:
Study examines treatment of heart failure with bone marrow cells

By Uduak Grace Thomas

Users of ChimerMarker, a short tandem repeat chimerism analysis software solution marketed by SoftGenetics, are reporting a significant reduction in the time required to analyze STRs in blood samples of patients who have undergone bone marrow transplants.

The tool automates the process of assessing the chimerism ratio the proportion of donor cells relative to the host patients own cells in post-transplant cases based on the presence of STRs that are unique to both the patient and the donor, Don Kristt, head of molecular pathology at the Rabin Medical Center in Israel, explained to BioInform this week.

According to SoftGenetics, the software can be used to monitor chimerism levels in allogeneic and autologous stem cell transplants or hematopoietic stem cell transplants; bone marrow transplants; and cord and peripheral blood stem cell transplant samples.

SoftGenetics partnered with Kristt to develop the software, which it released last March (BI 3/18/2011). The company later added a module for testing fetal samples for maternal cell contamination prior to performing genetic testing for cystic fibrosis or other diseases (BI 9/2/2011).

The software provides capabilities for genotyping and chimerism analysis and tools to automatically identify donor and recipient peaks in samples following bone marrow transplants. It also calculates percent chimerism and quality metrics for single donor or double donor cases.

Dawn Wagenknecht, who supervises the HLA-Vascular Biology Laboratory at Franciscan St. Francis Health, told BioInform this week that her team was able to reduce the time required to calculate the ratio of donor to recipient cells in blood samples by as much as 85 percent.

She explained that the team ran parallel analyses of 10 blood samples using both ChimerMarker and a manual approach that the lab had used prior to purchasing the software, which involved manually sorting data generated by capillary sequencing in Excel spreadsheets, and then calculating the ratios either on the sheet or using a hand calculator.

In addition to the time savings, ChimerMarker also simplifies the analysis process because all the steps of the workflow are in a single package, she said.

The software also maintains records of the donor sample and the patients blood before transplantation so that the results from subsequent tests after transplant can be compared to the initial samples, she said.

Read more here:
Labs Report 85 Percent Reduction in STR Analysis Time with SoftGenetics' ChimerMaker Software

By Uduak Grace Thomas

Users of ChimerMarker, a short tandem repeat chimerism analysis software solution marketed by SoftGenetics, are reporting a significant reduction in the time required to analyze STRs in blood samples of patients who have undergone bone marrow transplants.

The tool automates the process of assessing the chimerism ratio the proportion of donor cells relative to the host patients own cells in post-transplant cases based on the presence of STRs that are unique to both the patient and the donor, Don Kristt, head of molecular pathology at the Rabin Medical Center in Israel, explained to BioInform this week.

According to SoftGenetics, the software can be used to monitor chimerism levels in allogeneic and autologous stem cell transplants or hematopoietic stem cell transplants; bone marrow transplants; and cord and peripheral blood stem cell transplant samples.

SoftGenetics partnered with Kristt to develop the software, which it released last March (BI 3/18/2011). The company later added a module for testing fetal samples for maternal cell contamination prior to performing genetic testing for cystic fibrosis or other diseases (BI 9/2/2011).

The software provides capabilities for genotyping and chimerism analysis and tools to automatically identify donor and recipient peaks in samples following bone marrow transplants. It also calculates percent chimerism and quality metrics for single donor or double donor cases.

Dawn Wagenknecht, who supervises the HLA-Vascular Biology Laboratory at Franciscan St. Francis Health, told BioInform this week that her team was able to reduce the time required to calculate the ratio of donor to recipient cells in blood samples by as much as 85 percent.

She explained that the team ran parallel analyses of 10 blood samples using both ChimerMarker and a manual approach that the lab had used prior to purchasing the software, which involved manually sorting data generated by capillary sequencing in Excel spreadsheets, and then calculating the ratios either on the sheet or using a hand calculator.

In addition to the time savings, ChimerMarker also simplifies the analysis process because all the steps of the workflow are in a single package, she said.

The software also maintains records of the donor sample and the patients blood before transplantation so that the results from subsequent tests after transplant can be compared to the initial samples, she said.

Originally posted here:
Labs Report 85 Percent Reduction in STR Analysis Time with SoftGenetics' ChimerMaker Software

Editor's Choice Academic Journal Main Category: Lymphoma / Leukemia / Myeloma Article Date: 23 Mar 2012 - 8:00 PDT

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The drug blocks these cells from binding to bone marrow by driving them into the bloodstream, where they are more susceptible to chemotherapy.

Geoffrey L. Uy, M.D., co-first author on the study and assistant professor of medicine, said:

52 individuals with acute myeloid leukemia (AML) whose AML was resistant to the standard chemotherapy regimen or who had relapsed, were enrolled to participate in the combined Phase I and II clinical trial. All 46 participants in the Phase II section of the trial received plerixafor. The researchers found that all 46 participants achieved complete remission (no evidence of cancer was found in the bone marrow or blood following treatment).

Uy, who treats patients at the Alivn J. Siteman Cancer Center at Washington University School of Medicine and Barnes-Jewish Hospital, explained:

Results from earlier studies have demonstrated that mutations that cause AML may vary considerably among patients. Senior author, John F. DiPersio, M.D., Ph.D, the Virginia E. and Sam J. Golman Professor of Medicine, notes that all these leukemia cells, regardless of individual mutations, rely on the protective effects of the bone marrow.

DiPersio, who also treats people at the Siteman Cancer Center, said:

More:
Plerixafor Improves Acute Myeloid Leukemia Chemo Efficacy

What used to be medical trash is now treating cancer. The University of Virginia's Medical Center is the first place in Virginia to take advantage of stem cells from umbilical cords and they are pleased with the results.

Dr. Mary Laughlin, the director of stem cell transplantation at UVA,said, "These are cells that are routinely thrown away, these cells save lives."

A lab within the UVA Medical Center contains numerous tubes where non-embryonic stem cells reside. They come from umbilical cord blood and give hope topatients suffering leukemia, multiple myeloma and lymphoma.

Dr. Laughlin added, "They can completely replace a patient's bone marrow in the immune system. Oneof 10 cancer patients are able to find those cells through existing adult registries."

Thefive million babies that are born each year will soon solve that problem. The cells that are normally tossed out attack cancer cells.

Denise Mariconda, a nurse within the stem cell transplant program, stated, "It looks like a blood transfusion." Dr. Laughlin added, "It is in many ways like a cancer vaccine."

The first transplants were made in January and the transplant program at the UVA Medical Center admits it takes getting used to.

Mariconda said, "It is a process that's not like having your heart fixed in a one-day setting and you know that it's better."

These cells are not cause for controversy. Dr. Laughlin said, "Use of cord-blood is approved by all religious groups including the Vatican."

Babies' immune systems are not fully educated at the time of birth, making these cells effective. Dr. Laughlin, added, "That allows us to cross transplant barriers."

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Stem Cell Transplant Program Offered at UVA Medical Center

ScienceDaily (Mar. 21, 2012) Powerful new cells created by Cardiff scientists from cheek lining tissue could offer the answer to disorders of the immune system. While the body's immune system protects against many diseases, it can also be harmful. Using white blood cells (lymphocytes), the system can attack insulin-producing cells, causing diabetes, or cause the body to reject transplanted organs.

A team from the School of Dentistry led by Professor Phil Stephens, with colleagues from Stockholm's Karolinska Institute, have found a new group of cells with a powerful ability to suppress the immune system's action.

The team took oral lining cells from the insides of patients' cheeks and cloned them. Laboratory tests showed that even small doses of the cells could completely inhibit the lymphocytes.

The breakthrough suggests that the cheek cells have wide-ranging potential for future therapies for immune system-related diseases. Existing immune system research has focused on adult stem cells, particularly those derived from bone marrow. The cheek tissue cells are much stronger in their action.

Dr Lindsay Davies, a member of the Cardiff team, said: "At this stage, these are only laboratory results. We have yet to recreate the effect outside the laboratory and any treatments will be many years away. However, these cells are extremely powerful and offer promise for combating a number of diseases. They are also easy to collect -- bone marrow stem cells require an invasive biopsy, whereas we just harvest a small biopsy from inside the mouth."

The findings have just been published online in Stem Cells and Development. The team has now been funded by the Medical Research Council to investigate the cloned cells further.

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The above story is reprinted from materials provided by Cardiff University.

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Powerful new cells cloned: Key to immune system disease could lie inside the cheek

Debbi Margosian Chapmans family hopes you will and is offering $10,000 to the person who is a bone marrow match for her to treat her leukemia. Because Debbi is Armenian, her doctors believe her best chances of finding a match is with the Armenian community.

Please join Dr. Frieda Jordan, president of the Armenian Bone Marrow Donor Registry (ABMDR), on Saturday, March 24, at 7 p.m., at the Armenian Cultural and Educational Center, 47 Nichols Avenue, Watertown, Massachusetts, for a presentation and bone marrow drive and become a hero for Debbi or the many other Armenians with blood cancers. If youre between 18-50 years old, you just need to give a quick swab of your cheeks so you can be entered into the Armenian Bone Marrow Donor Registry. If you are a match, in the majority of cases, your stem cells will be harvested in a manner similar to giving bloodthere is no anesthesia or surgery.

If you cant make it to the drive but want to be tested, please visit http://debbichapman.wordpress.com for more information.

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Armenians can help save a life