STAP cells

Reactions to RIKEN’s STAP cell protocol

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A small group of the STAP authors via RIKEN have now released a detailed protocol also available at Nature Protocol Exchange for making STAP stem cells entitled “Essential technical tips for STAP cell conversion culture from somatic cells”. This comes about 5 weeks after publication of their Nature STAP stem cell papers. 2020 update: With the 4th and …

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Latest STAP stem cell whispers: glimmers of hope or mirages?

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On the STAP cell front, I’ve heard several reports now that labs can sometimes see some kind of either Oct4-GFP reporter activity or pluripotency gene expression in acid treated cells, but the scientists do not seem particularly encouraged. One said that the cells gave a glimmer of interesting gene expression, but would not grow at …

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Interview with Dr. Teru Wakayama on STAP stem cells

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I asked Dr. Teruhiko Wakayama, who goes by Teru to those who know him, if he would be willing to do a Q&A on the STAP stem cell situation. Teru was senior author on the STAP stem cell Nature letter on chimerism, but was not a senior (note this is a correction from an earlier version of this …

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Are STAP Stem Cell Nature Papers Compromised?

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Are the Nature STAP stem cell papers compromised? Could Nature‘s investigation conclude with something as serious as retraction or rather a mild slap on the wrist? Somewhere in between? (note you may find this update post from 2020 to be of interest: Whatever happened to the STAP cell scientists including Haruko Obokata?) Why is this question …

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STAP 3.0: Patent, New Paper Problems, & Poll Plummet

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People have been taking a long look over the last 24 hours or so at the STAP stem cell patent application filed by Charles Vacanti, his brother, Obokata, and others. Any reactions? I don’t know much about patents so I’d be curious of your impressions. New STAP paper troubles? I’m hearing through the stem grapevine …

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Oddest Things About Unfolding STAP Stem Cell Story

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We know quite a bit more about the Nature papers on stress-induced STAP stem cells than we did just a couple weeks ago when they were published, but there are many crucial outstanding questions too and odd things that remain unresolved. Below are my top STAP stem cell oddities. 10. Dr. Vacanti says that STAP …

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