Stanford president resigned over manipulated images — 5 papers retracted or corrected

Marc Tessier-Lavigne was one of the most respected neuroscientists of his generation, a pioneer in axon guidance and brain development who had led research at Genentech, Rockefeller University, and ultimately Stanford University, where he served as president from 2016. Under his leadership, Stanford raised billions, expanded its faculty, and rose in global rankings. His scientific reputation was built on papers published in top journals including Nature, Science, and Cell.

In November 2022, microbiologist and image-integrity researcher Elisabeth Bik, together with The Stanford Daily, identified manipulated images in four papers co-authored by Tessier-Lavigne. The manipulations included duplicated bands in gel blots, rotated and reused image panels, and other irregularities that suggested data had been altered to produce desired results. Stanford's Board of Trustees launched an investigation, convening a panel of independent scientists to review the allegations.

The panel's report, released July 19, 2023, found that Tessier-Lavigne had not personally manipulated data nor knowingly approved manipulated images. But it found an 'unusual frequency of manipulation of research data' from multiple people in labs he had overseen, and concluded that he had 'failed to decisively and forthrightly correct mistakes in the scientific record.' He resigned as Stanford president the same day, effective August 31, 2023, and committed to retract or correct five papers — a 2009 Nature paper was retracted that December.

He resigned after a panel found he failed to correct mistakes, and committed to retract or correct five papers, ending his presidency.

The labs he oversaw tolerated image manipulation — multiple people across different labs were implicated, a systemic failure of supervision rather than a single bad actor.

The trigger was external — Elisabeth Bik's blog post and The Stanford Daily's reporting uncovered what Stanford's own checks had missed for years.

Concerns about some papers dated to 2015 — Tessier-Lavigne notified Science of errors, but an internal error meant no correction was published; the problems stood for eight years.

The panel cleared him of personally manipulating data — but found he 'failed to decisively and forthrightly correct mistakes.' Not a fraudster, but a leader who did not lead.

A leader who does not check the data in their own lab does not belong at the top of a research university. He was never accused of faking anything — his failure to supervise cost him the presidency.

The case was one of the highest-profile research-misconduct investigations involving a university president. It highlighted the power of independent image-integrity researchers like Elisabeth Bik, whose scrutiny has led to hundreds of retractions. It also raised the question: when a lab's data is manipulated, is the principal investigator responsible? Stanford's answer was yes. Tessier-Lavigne stayed on as a biology professor, but the presidency and much of his scientific authority were lost.