Search Results for: "stem cell"

Nature retracts highly cited 2002 paper that claimed adult stem cells could become any type of cell

Nature has retracted a 2002 paper from the lab of Catherine Verfaillie purporting to show a type of adult stem cell could, under certain circumstances, “contribute to most, if not all, somatic cell types.”  The retracted article, “Pluripotency of mesenchymal stem cells derived from adult marrow,” has been controversial since its publication. Still, it has … Continue reading Nature retracts highly cited 2002 paper that claimed adult stem cells could become any type of cell

Paper partly funded by controversial stem cell company retracted

The timestamps always get you in the end.  A widely touted 2017 paper linked to a controversial company promoting regenerative medicine has been retracted after the journal came to doubt the validity of the data thanks to some strange anachronisms and a digital breadcrumb.  “Intra-articular injection in the knee of adipose derived stromal cells (stromal … Continue reading Paper partly funded by controversial stem cell company retracted

Drug researchers retract two papers, one because “human stem cells were actually mouse stem cells”

A group of drug researchers has lost a pair of 2020 papers for a lack of reproducibility and other problems, including the unfortunate mislabeling of murine stem cells as having come from humans. (In case you’re wondering, mouse and human stem cells are at once quite similar and highly divergent.)   One article, “Divergent synthesis of … Continue reading Drug researchers retract two papers, one because “human stem cells were actually mouse stem cells”

Stem cell researchers lose two more papers, making three

A Hindawi journal has retracted two 2013 papers by a group of stem cell researchers in China over issues with the images in the articles, bringing their count to three.   Here’s the notice for “Side-by-Side comparison of the biological characteristics of human umbilical cord and adipose tissue-derived mesenchymal stem cells,” by Lili Chen and colleagues … Continue reading Stem cell researchers lose two more papers, making three

Stem cell researcher’s retraction count may near two dozen

A stem cell researcher in Japan could end up with 23 retractions after officials at his former institution confirmed that he’d committed research misconduct in nearly two dozen papers.  According to a report released last week by Aichi Gakuin University, Nobuaki Ozeki misused images, fabricated data and recycled text in 20 papers. Ozeki has had … Continue reading Stem cell researcher’s retraction count may near two dozen

Weekend reads: Stem cell trouble?; retractions of articles on a newborn’s death; facial recognition papers draw scrutiny

Before we present this week’s Weekend Reads, a question: Do you enjoy our weekly roundup? If so, we could really use your help. Would you consider a tax-deductible donation to support Weekend Reads, and our daily work? Thanks in advance. The week at Retraction Watch featured: Co-authors of paper on COVID-19 and jade amulets blame ‘the … Continue reading Weekend reads: Stem cell trouble?; retractions of articles on a newborn’s death; facial recognition papers draw scrutiny

Two and a half years after findings of misconduct, stem cell researchers up to 19 retractions

A group of researchers at Aichi Gakuin University in Nagoya, Japan, continues to lose papers for duplication of images and text from their previous work, and is now up to 19 retractions. Please see an update on this post. Here’s a typical notice, for “Bone morphogenetic protein-induced cell differentiation involves Atg7 and Wnt16 sequentially in … Continue reading Two and a half years after findings of misconduct, stem cell researchers up to 19 retractions

“No original data”: Stem cell researchers in Japan up to nine retractions

A group of researchers in Japan who study oral stem cells has lost at least nine papers for fabricated data.  We reported on this group, from Aichi Gakuin University in Nagoya, last year after they lost two papers in PLOS ONE for image manipulation. The new retraction notice appears in the Journal of Oral Biosciences, … Continue reading “No original data”: Stem cell researchers in Japan up to nine retractions

‘[A] disappointing situation’: Stem cell group retracts with ‘rectitude’ after error

A team of stem cell researchers at the University of Maryland has lost a 2020 paper after failing to correct an error that they’d caught prior to submission. The paper, “Endothelial/mesenchymal stem cell crosstalk within bioprinted coculture,” appeared in Tissue Engineering Part A, a Mary Ann Liebert publication. The senior author of the article was … Continue reading ‘[A] disappointing situation’: Stem cell group retracts with ‘rectitude’ after error

‘Those unfortunate events:’ Second retraction for stem cell scientist in Canada accused of misconduct

Citing a misconduct investigation, the journal Stem Cells has retracted a 2009 article coauthored by a researcher whose work has been under suspicion for roughly five years.  The paper was titled “Cell adhesion and spreading affect adipogenesis from embryonic stem cells: the role of calreticulin.” The retraction notice, which is behind a paywall, states: