Lessons from STAP cell fiasco so far - The NichePurported STAP stem cell culture. The ultimate fate of the two Nature STAP cell papers remains in troubled limbo. One of the senior STAP cell authors, Dr. Sasai, held a news conference yesterday in Japan that included a call for the papers to be retracted. He was variously quoted as believing in STAP cells or alternatively as just thinking it was an unproven hypothesis. Whether STAP cells or STAP
