One of the world’s leading cancer researchers, Axel Ullrich of Germany, has retracted two papers published in the Journal of Biological Chemistry.
Ullrich, director of microbiology at the Max Planck Institute of Biochemistry, has been a central figure in many groundbreaking discoveries, from the development of genetically engineered insulin to the identification of the breast cancer gene HER2. The founder of several biotech firms, he also runs an international consortium, the Singapore Oncogenome Project, looking for other so-called oncogenes linked to protein-tyrosine kinase, or PTK, an enzyme that regulates cell growth and which, when run amok, is implicated in a variety of tumor types.
The retractions involve two articles, published eight years apart, on protein-tyrosine. The first, from 1996, was titled Continue reading Leading cancer scientist retracts two papers, one 14 years old, but journal won’t say why