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  • News in Brief

    Contamination blamed in STAP stem cell debacle

    The discredited stem cells known as STAP cells were ultraflexible because they were really embryonic stem cells, a new report contends.

    Last January, researchers claimed in two papers published in Nature that they had made stem cells by briefly dipping adult cells in a dilute acid bath or by giving the cells a squeeze (SN: 2/22/14, p. 6). The research was soon called into question, and...

    12/29/2014 - 20:30 Cells, Science & Society
  • News

    Dramatic retraction adds to questions about stem cell research

    Rising doubts about easy-to-make stem cells have hit a crescendo: The researchers who claimed to have discovered STAP cells have pulled their papers from the journal Nature. The scientists say that mistakes in the work now make them question the existence of such cells. The original publication described making STAP stem cells simply by stressing mature cells with a squeeze or with a brief...

    07/07/2014 - 11:36 Cells
  • News in Brief

    Stem cell papers retracted

    Researchers who claimed to have discovered STAP cells — stem cells made simply by stressing cells with a squeeze or with a brief plunge in acid — are pulling their papers from the journal Nature. The scientists say that mistakes in the work now make them doubt the existence of such cells.

    “These multiple errors impair the credibility of the study as a whole and we are unable to say...

    07/02/2014 - 13:14 Cells
  • Science Ticker

    Stem cell scientist reportedly agrees to retract controversial paper

    Japanese scientist Haruko Obokata, who led researchers reporting that dipping adult cells in acid could change them into stem cells, has agreed to retract one of the Jan. 30 Nature papers describing the result, according to news reports.

    Questions about figures in the papers and the technique were first raised in February, and Japan’s RIKEN Center for Developmental Biology, where Obokata...

    05/28/2014 - 15:36 Science & Society, Cells
  • News in Brief

    Misconduct found in Japanese stem cell research

    A Japanese researcher who recently created a sensation for reporting that dipping adult cells in acid can easily make them into stem cells is guilty of scientific misconduct, investigators at Japan’s RIKEN Institute announced April 1.

    The acid method of making a type of stem cells known as STAP cells (SN: 2/22/14, p. 6) came under fire as soon as it appeared in two papers in Nature at...

    04/01/2014 - 15:17 Science & Society, Cells
  • News

    Acid-bath method for making stem cells under fire

    A surprisingly simple method for creating stem cells by dipping cells in acid has so far proven impossible to replicate, prompting calls for the original research papers, published in January, to be retracted. One of those calls is coming from inside the large group of collaborators that first introduced the STAP stem cells, a special kind of ultraflexible cell shown to produce any type of...

    03/10/2014 - 18:30 Cells
  • Science Ticker

    Questions raised about new method for making stem cells

    Guest post by Lila Guterman

    Research reports in late January garnered attention for showing that making stem cells just required dipping adult cells in acid (SN: 2/22/14, p. 6). But Japan’s RIKEN Center for Developmental Biology, where the lead scientist works, has begun an investigation of the findings, according to reports in Nature, the Wall Street Journal and other publications.

    ...
    02/19/2014 - 16:20 Cells
  • News

    A little acid or a tight squeeze can turn a cell stemlike

    Editor's Note: The research described in this article is the subject of a reported February 2014 investigation by RIKEN. Read more about the concerns about the findings and some researchers' unsuccessful attempts to replicate the work. The papers were retracted in July 2014.

    View the video

    Creating stem cells may be as simple as dunking cells briefly into a mild acid bath.

    ...

    01/29/2014 - 10:26 Cells