There's a new twist today in the ongoing saga surrounding Anil Potti, the Duke cancer researcher who falsely claimed to be a Rhodes Scholar and may have manipulated scientific data.
One of his collaborators is now requesting a retraction of their work published in a major scientific journal - a significant blow to both Duke and its lab.
Joseph Nevins, a professor and director of Duke's Center for Applied Genomics and Technology, sent a letter to the editors of the Journal of Clinical Oncology, a leading publisher of scientific findings in cancer research, calling for a full retraction of work he and Potti submitted in 2007.
Efforts to reach the journal editors are underway.
The work, which claims to establish a genetic basis for predicting which cancer patients will respond best to different treatments, has been questioned for at least a year, when scientists elsewhere tried to reproduce it and could not. In addition, the other scientists found numerous errors, requiring published corrections.
Potti was placed on leave earlier this year after questions arose about claims he made on federal grant applications.
Duke subsequently halted three clinical trials he was involved in after questions about their legitimacy arose.
And the journal Lancet launched an inquiry into the findings of a Potti study it published in 2007.