Six new U-M stem cell lines now publicly available to help researchers find treatments for disease

Lines in US registry will help studies on Huntingtons disease, hemophilia & more

Newswise ANN ARBOR, Mich. Six new human embryonic stem cell lines derived at the University of Michigan have just been placed on the U.S. National Institutes of Healths registry, making the cells available for federally-funded research.

U-M now has a total of eight cell lines on the registry, including five that carry genetic mutations for serious diseases such as the severe bleeding disorder hemophilia B, the fatal brain disorder Huntingtons disease and the heart condition called hypertrophic cardiomyopathy, which causes sudden death in athletes and others.

Researchers at U-M and around the country can now begin using the stem cell lines to study the origins of these diseases and potential treatments. Two of the cell lines are believed to be the first in the world bearing that particular disease gene.

The three U-M stem cell lines now in the registry that do not carry disease genes are also useful for general studies and as comparisons for stem cells with disease genes. In all, there are 163 stem cell lines in the federal registry, most of them without major disease genes.

Each of the lines was derived from a cluster of about 30 cells removed from a donated five-day-old embryo roughly the size of the period at the end of this sentence. The embryos carrying disease genes were created for reproductive purposes, tested and found to be affected with a genetic disorder, deemed not suitable for implantation and would have otherwise been discarded if not donated by the couples who donated them.

Some came from couples having fertility treatment at U-Ms Center for Reproductive Medicine, others from as far away as Portland, OR. Some were never frozen, which may mean that the stem cells will have unique characteristics and utilities.

The full list of U-M-derived stem cell lines accepted to the NIH registry includes:

UM9-1PGD Hemophilia B UM17-1 PGD Huntingtons disease UM38-2 PGD - Hypertrophic Cardiomyopathy (MYBPC3) UM15-4 PGD - Hydroxysteroid Dehydrogenase 4 Deficiency, a rare hormone disorder UM11-1PGD - Charcot-Marie-Tooth disease Type 1A UM4-6 no disease gene UM14-1 no disease gene UM14-2 no disease gene

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Six New U-M Stem Cell Lines Now Publicly Available

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