http://www.sciencemag.org/news/2019/11/top-chinese-researcher-faces-questions-about-image-manipulation

One of China’s most prominent scientists is facing a barrage of questions about images in dozens of papers produced by laboratories he leads. The Chinese Academy of Engineering has launched an investigation of the publications, by immunologist Cao Xuetao, president of Nankai University in Tianjin, and the case is getting extensive attention in both traditional and social media.

Cao has defended the scientific validity of the papers, says he is cooperating with the review, and has promised to work with journals to correct any errors. “I most sincerely apologize for any oversight on my part,” he wrote 17 November on PubPeer, the publications review website where researchers first raised questions about the papers. “I remain confident about the validity and strength of the scientific conclusions made in those publications.”