Skip to main content

More Retractions for Fallen Scientist

Molecular and Cellular Biology pulls five papers from endocrinologist Shigeaki Kato.

Written byKerry Grens
| 1 min read

Register for free to listen to this article
Listen with Speechify
0:00
1:00

WIKIMEDIA, LOTY Shigeaki Kato, formerly a researcher at the University of Tokyo, has five more papers to add to a growing pile of retracted studies. The latest issue of Molecular and Cellular Biology issued the retractions because multiple figures in each study were “unacceptably manipulated.”

Last year, a panel at the University of Tokyo recommended that 43 papers by Kato and colleagues should be retracted. The investigation launched after an anonymous tipster made a video pointing out evidence of image tampering. According to the blog Retraction Watch, Kato’s group has racked up at least 17 retractions so far, and Kato has resigned from his post at the University.

The latest retracted studies appeared in Molecular and Cellular Biology in 1999, 2002, 2007, and 2008. According to Google Scholar, one of the studies, “Purification and identification of p68 RNA helicase acting as a transcriptional coactivator specific for the activation function 1 of human estrogen receptor α,” has been cited 374 times. One of Kato’s coauthors, Hirochika Kitagawa, did not agree two ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member?
Add The Scientist as a preferred source on Google

Add The Scientist as a preferred Google source to see more of our trusted coverage.

Meet the Author

  • kerry grens

    Kerry served as The Scientist’s news director until 2021. Before joining The Scientist in 2013, she was a stringer for Reuters Health, the senior health and science reporter at WHYY in Philadelphia, and the health and science reporter at New Hampshire Public Radio. Kerry got her start in journalism as a AAAS Mass Media fellow at KUNC in Colorado. She has a master’s in biological sciences from Stanford University and a biology degree from Loyola University Chicago.

    View Full Profile

Related Topics

The Scientist Digest cover September 2026
September 2026

Multiplex Microscopy Becomes Easier with Encoded Antibodies

A new system that enables researchers to uniquely tag monoclonal antibodies for use in microscopy could help simplify complex imaging studies.

View this Issue
Essential Genes Are Dominantly Activated by Single Transcription Factors

Essential Genes Are Dominantly Activated by Single Transcription Factors

EpiCypher Logo
Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Alamar Biosciences logo
Engineering CAR-Neutrophils In Vivo to Target Glioblastoma

Engineering CAR-Neutrophils In Vivo to Target Glioblastoma

Miltenyi
Best Practices for qPCR Assay Design and Optimization

Best Practices for qPCR Assay Design and Optimization

Bio-Rad

Products

Closeup image of a multi channel pipette dispensing pink liquid into a 96-well plate.

The ASSIST PLUS pipetting robot for affordable workflow automation

Integra Logo
Single cells in suspension

Rapidly isolate primary cells and make uniform single-cell suspensions with Corning® Cell Strainers

Corning logo
Abstract image representing cell membranes linked together.

CellBrite® Steady Membrane Stain: Cell surface staining built for real-time imaging

Biotium
sino biological logo

Monod Bio Licenses AI-designed Protein Technologies to SignalChem Biotech for Custom Discovery Assays