Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘Science Signalling’ Category

Science journal flags cancer paper under investigation for image manipulation

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Science Signaling has issued an expression of concern for a 2016 paper, citing an institutional investigation into image manipulation.

According to a spokesperson for the journal, the corresponding author, Tanya Kalin, became concerned that two images in the paper had been manipulated. Kalin then notified the research integrity officer at Cincinnati Children’s Hospital Medical Center, where she is based.

On May 9 2017, Kalin alerted the journal to the investigation. A week later, the hospital’s research integrity officer followed up with the journal, flagging the figures under question.  The journal then prepared an expression of concern (EOC) to alert readers to the issues and the institution’s investigation.  

Here’s the EOC notice for “The transcription factor FOXF1 promotes prostate cancer by stimulating the mitogen-activated protein kinase ERK5:” Read the rest of this entry »

Science Signaling corrects data fudged by former UCSF student

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afbb251f8bc8f71e26b313c77669d48fA paper containing data fudged by former University of California San Francisco grad student Peter Littlefield has been corrected. We knew that this was coming — last month, the Office of Research Integrity issued a report that Littlefield had admitted to misconduct, and agreed to a retraction or correction of the two affected papers.

Published in Science Signaling, “Structural analysis of the /HER3 heterodimer reveals the molecular basis for activating HER3 mutations” examined the structural details of a protein associated with cancer. It has been cited two times, according to Thomson Scientific’s Web of Knowledge.

According to the correction note, the concentration of a protein presented in one figure was “miscalculated;” in another figure, the error bars were “calculated incorrectly.”

A statement from the UCSF affirmed that principle investigator Natalie Jura has “not been implicated in any research misconduct finding,” and explains that Read the rest of this entry »

Former UCSF grad student fudged data in two papers

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ORIA former graduate student at the University of California, San Francisco “knowingly falsified and/or fabricated” data in two published papers, according to the Office of Research Integrity.

According to a case summary published this morning, Peter Littlefield was working on his PhD, studying the ways that cells respond to external signals, when he published the two problematic papers. He is the first author on the papers; Natalia Jura, whose lab he worked in, is the last on both.

The report’s findings are based on, among other sources, “the respondent’s admission.”

The first paper, “Structural analysis of the EGFR/HER3 heterodimer reveals the molecular basis for activating HER3 mutations” was published in Science Signaling and has been cited twice, according to Thomson Scientific’s Web of Knowledge.

Three figures in the paper are problematic, says the ORI summary:

Read the rest of this entry »