Possible problems with stem cell transplant: Harvard researchers found that as stem cell lines grow in a lab dish, they often acquire mutations in the TP53 (p53) gene, an important tumor suppressor responsible for controlling cell growth and division.

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Possible problems with stem cell transplant: Harvard researchers found that as stem cell lines grow in a lab dish, they often acquire mutations in the TP53 (p53) gene, an important tumor suppressor responsible for controlling cell growth and division.