Several images have been shown to be edited/duplicated, one of the main authors has recommended that the papers should be pulled etc...
"Wakayama told NHK he is no longer sure the STAP cells were actually created. He was in charge of important experiments to check the pluripotency of the cells.
He said a change in a specific gene is key proof that the cells are created. He said team members were told before they released the papers that the gene had changed.
Last week, RIKEN disclosed detailed procedures for making STAP cells after outside experts failed to replicate the results outlined in the Nature article.
Wakayama pointed out that in the newly released procedures, RIKEN says this change didn't take place.
He said he reviewed test data submitted to the team's internal meetings and found multiple serious problems, such as questionable images."