Podcast for Week of July 5 Topics –Stem Cell Tourism in the U.S. –CIRM –Article in the Hill by stem cell opponent –Stem cell hype on aging Podcast for Week of July 11 Topics: –two papers on stem cell-based tissue engineering and one on stem cell treatments for heart disease, –the Republican candidates for […]
What are iPS cells? We talk about iPS cells all the time. We are very excited about them. Heck, the web address for this blog is ipscell.com. But what are iPS cells, really? A simple definition of iPS cells is the following: Embryonic stem cell-like cells that are made from non-stem cells in a lab.
An insider’s guide: what are iPS cells? Read More »
A group of researchers led by Evan Snyder (paper discussed here) published a paper in PNAS on a new type of neural stem-like cell whose pluripotency can be turned ON or OFF by turning the v-myc gene ON or OFF using a conditional system of expression, called a “Tet-ON” system. In this system, tetracycline or its
“Alternative” to IPS cells, ICSP, are very cool, but for now a no-go for the FDA Read More »
Just how tumorigenic are iPS cells? The field really doesn’t know at this point. However, a steady stream of papers have raised red flag after red flag about genomic and epigenomic alterations/mutations that are linked to cancer. Of course, then there is the fact that all the genetic changes actually used to make reprogrammed cells
Secret Not so Secret Recipe for Safer iPS cells Read More »
What makes stem cells different? The stem cell field is faced with a dilemma as stem cells and some non-stem cells are sometimes too similar to tell apart. Even worse, stem cells and cancer cells are especially similar. If one focuses specifically on cancer stem cells (aka tumor initiating cells), the similarity between cancer stem
What makes stem cells different? Read More »
Sheng Ding’s lab reports today in Cell Stem Cell (you can read it here) that they have replaced all genetic factors in a new iPS cell reprogramming method except Oct4. The other factors were replaced by chemical compounds. Thus, we continue a major transition in the iPS cell field away from genes and toward chemicals.
From genes to chemicals: iPS cell field, reprogramming in transition Read More »
Cancer is a class of diseases that are intimately linked to stem cells. In fact, I would go so far as to call some types of cancer cells and stem cells, cousins. This concept, of a tight relationship between stem and cancer cells, is under intense investigation but at the same time it is something
Disease Focus Series: Cancer Read More »