Nicolo' Minerbi / LUZphoto / eyevine

Mauro Ferrari, who heads the Institute for Academic Medicine at the Houston Methodist Hospital in Texas, is the Italian government's nominee to chair a committee on the controversial Stamina Foundation.

Top scientists in Italy have called on the health minister Beatrice Lorenzin to reconsider the composition of the new scientific advisory committee she has proposed to assess a controversial stem-cell therapy offered by the Stamina Foundation.

Their move follows a renewed media frenzy around the affair, prompted by statements made to the press and television by the committees proposed president, Mauro Ferrari, shortly after he was nominated on 28 December.

The Stamina therapy, which has not been scientifically proven to be effective in a clinical trial, involves extracting mesenchymal stem cells from bone marrow of a patient, manipulating them and then reinjecting them into the same patients blood or spinal fluid. Stamina, based in Brescia, has already treated more than 80 patients for a wide range of serious diseases.

Stamina's practices have been widely criticized by experts both in Italy and outside, and the first government-appointed scientific committee to rule on Stamina prepared a detailed report describing the Stamina protocol as without a scientific basis, ineffective and dangerous. However, a regional court declared that committee unlawfully biased on 4 December. But after that committee's report was leaked to the press on 20 December (see 'Leaked files slam stem-cell therapy'), many families of patients who claim to have been damaged by the therapy announced that they had brought charges for damages against Stamina and its president Davide Vannoni. Both have denied any wrongdoing.

In response to the court findings, minister Lorenzin nominated Ferrari to chair a new committee. Ferrari, who heads the Institute for Academic Medicine at the Houston Methodist Hospital in Texas, told journalists that he was neither for nor against the Stamina method.

However on the 22 January episode of a widely viewed television show, Le iene, Ferrari said he thought Stamina offered Italy the opportunity to take a world lead in bringing experimental therapies into the clinic. He also referred to Stamina as the first important case for regenerative medicine here in Italy, a statement that has incensed some Italian researchers.

Michele de Luca, a stem-cell biologist from the University of Modena and Reggio Emilia says that Ferrari's assertions were an insult to the many scientists in Italy working on translating stem-cell research into new clinical applications. In particular, De Luca's own group was the first in the world to cure a form of blindness with a stem-cell therapy they developed, he points out.

In a letter dated 26 January, which was seen by Nature, four influential clinical scientists say that they were extremely worried by Ferrari's televised statements. The signatories were Silvio Garattini, head of the Mario Negri Institute for Pharmacological Research in Milan; Giuseppe Remuzzi, head of the Mario Negri Institute in Bergamo; Gianluca Vago, rector of the University of Milan; and Alberto Zangrillo, vice-rector for clinical activities at the University Vita-Salute San Raffaele in Milan.

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Row over controversial stem-cell procedure flares up again

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