The University of Tokyo revealed Tuesday it has found misconduct involving five papers supervised and co-authored by two researchers at its Institute of Molecular and Cellular Biosciences (IMCB), saying the papers contained fabrications and falsifications of data and images.

The panel at the nation's leading university, known as Todai, said professor Yoshinori Watanabe, who supervised and co-authored the papers, and Yuji Tanno, who co-wrote one of the five papers, were responsible for the misconduct.

The five papers were published between 2008 and 2015 in prominent journals such as Science and Nature. A university committee will advise Watanabe to either retract or amend the published papers, the panel said.