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Friday, October 21, 2016

Cancer researcher retracts 19 ovarian cancer studies at once - Retraction Watch



Cancer researcher retracts 19 studies at once - Retraction Watch
 October 21st, 2016
Tracking retractions as a window into the scientific process


A former cancer biologist at the Moffitt Cancer Center in Tampa, Florida has retracted 19 papers from a single journal.

Jin Cheng, who studies how ovarian cancer develops, withdrew 19 papers from the Journal of Biological Chemistry originally published over the last 15 years, and corrected another. All of the retractions are for image manipulation.

For example, here’s the notice for “Activation of phosphatidylinositol 3-kinase/Akt pathway by androgen through interaction of p85α, androgen receptor, and Src,” a paper originally published in 2003:
This article has been withdrawn by the authors. The same data were used to represent different experimental conditions. Specifically, lanes 1–3 of the H2B panel of Fig. 4Bwere reused in lanes 1–3 of the H2B panel from Fig. 6B. Lanes 1 and 6 of the phospho-Akt panel from Fig. 4C were duplicated. Lanes 3 and 4 of the lower FLAG panel in Fig. 4Cwere reused in lanes 7 and 8 of the lower FLAG panel in Fig. 5A. The PI(3,4)P2 spots from lanes 1 and 2 from Fig. 7 were reused in lanes 7 and 8 of the same panel. Additionally, some PI(4)P1 spots were pasted in. The authors state that the overall conclusions of this work are not affected.
Cheng has been awarded multiple NIH R01 grants, totaling millions of dollars, according to NIH RePORTER. A person answering the phone number listed for Cheng’s lab said he had retired. The email address listed on many of his papers bounced.
Here are the 19 retractions:
The current issue of the JBC also includes a correction of one of Cheng’s papers, “Long non-coding RNAs (LncRNA) regulated by transforming growth factor (TGF) β. LncRNA-HIT-MEDIATED TGF-INDUCED EPITHELIAL TO MESENCHYMAL TRANSITION IN MAMMARY EPITHELIA,” a study that has been cited 17 times.

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