September 19, 2020

The Niche

Knoepfler lab stem cell blog

幹細胞とは

1 min read

I’ve been doing polling on people’s views about STAP stem cells. You can see the week 1 poll results here. I’ve just closed the week 2 polling and the results are above. In week 1 while there was a significant split between respondents, the polling leaned clearly toward people being more positive about STAP stem cells. In week 2 polling that lean has largely disappeared leaving an almost perfectly divided response and “on the fence” has risen quite a bit from week 1. It’s …Read More

1 min read

It is important for the stem cell field to gain clarity on STAP stem cells. For this reason it is reasonable and at times helpful to critically discuss the data, past findings, concerns about elements of publications, and such. However, it is not helpful and is in fact against the policy of this blog to engage in the comments in personal attacks, whether direct or implied. So I am reminding commenters to adhere to the policy of not engaging in personal attacks as we …Read More

2 min read

What’s the latest on the now two-week-old STAP stem cell saga? More preliminary data from around the world.  People continue to deposit their data into our crowdsourcing page with 8 reports so far and I know some of them are from top-notch labs. Only one of them is even slightly encouraging with a report of faint activity from a Nanog-GFP reporter, while the rest are discouraging. It is still early days, but I think if nothing else so far these reports tell us that …Read More

2 min read

Acid-induced pluripotent or even totipotent stem cells, called STAP stem cells, have thrown the stem cell field for a bit of a loop. For more background see my interview with the key public face of STAP, Dr. Charles Vacanti, as well as my review of their paper, my top 5 reasons for skepticism, and some other thoughts. Do you believe in STAP? You can also see a poll from the first week post-STAP and you can vote in a current ongoing poll. What are the latest developments on the STAP front? Human too? We …Read More