Stem cells: Scientist asks for research to be withdrawn

Petri dishes filled with stem cells

Related Stories

A Japanese scientist behind a seemingly groundbreaking stem cell study says the findings should be withdrawn amid doubts over its quality.

It was reported in January that dipping cells in acid could cheaply and quickly convert them into stem cells.

But questions were raised about the images used in the scientific report and other research groups have failed to reproduce the results.

Author Prof Teruhiko Wakayama said: "It is no longer clear what is right."

The future of regenerative medicine is pinned on stem cells, which can transform into any other type of tissue. They are being investigated for restoring sight to the blind and repairing the damage caused by a heart attack.

'Mistakes have emerged'

The original study, published in the journal Nature, became a huge story around the world and was described as "remarkable" and as a "major scientific discovery".

It said stem cells no longer needed to be taken from embryos or made by complicated and costly genetic tinkering.

Instead, shocking skin cells with acid could drive them back into a stem cell state.

The breakthrough findings have not been discredited, but they have come under intense scrutiny.

The Reuters news agency reports Prof Wakayama, of the University of Yamanashi, told Japanese TV: "When conducting the experiment, I believed it was absolutely right.

"But now that many mistakes have emerged, I think it is best to withdraw the research paper once and, using correct data and correct pictures, to prove once again the paper is right.

"If it turns out to be wrong, we would need to make it clear why a thing like this happened."

On the day the findings were announced, Dr Haruko Obokata explained how she nearly gave up on the project when fellow researchers did not believe what she had found

More on This Story

Related Stories

From other news sites

* May require registration or subscription

The BBC is not responsible for the content of external Internet sites

More Health stories

RSS

Features & Analysis

  • Dr Mahinder Watsa Dr Sex

    The wisecracking 90-year-old whose advice column is a cult hit


  • Payton McKinnonKilling heat

    Why so many American children die in hot cars


  • Vice-President Joe Biden.Joe v Hillary

    What needs to happen for Biden to be the next president


  • USA fanSoccer punch

    Has the US finally fallen in love with the beautiful game? BBC Sport


BBC Future

(Getty Images)

How to learn while you sleep

Enhance memory with your eyes shut Read more...

Programmes

  • (File photo) Usain BoltClick Watch

    Challenging the world's fastest man to a virtual race over 40m – can you keep up?

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.