The tragic 9.0 earthquake and tsunamis that hit Japan a few weeks ago are having lasting consequences not only for Japan, but also for the world via radiation. One area of particular concern is the radiation that has leaked and is continuing to leak from the damaged nuclear reactors. At this point, the radiation […]
A reality check on the radiation spreading across the globe Read More »
How are things looking for the stem cell field for Spring 2011? Issue One. Getting to the clinic. At this point, Geron and ACT have their FDA-approved clinical trials underway using derivatives of human embryonic stem cells. As expected no news has leaked out on how things are going and it may well be Fall
Update on the stem cell field: Spring 2011 Read More »
Each year brings more evidence that what causes many cancers is a case of biological betrayal on the part of stem cells via cancer stem cells. I have blogged before about the potential for stem cell-based regenerative medicine therapies to aid cancer patients. I have also written before about my own experiences as a cancer
Cancer Stem Cells: a new target Read More »
Yesterday I wrote about how difficult it is to tell different cell lines apart, including normal stem cells and cancer stem cells, especially since some accumulate accumulate oncogenic mutations that may make them seem more similar. A new paper is coming out that makes this case on a genomic level. Tomorrow’s Cell Stem Cell edition
Devil in the details: small oncogenic lesions in iPS cells & ESC Read More »
In this post I give my most interesting predictions about events in the stem cell field in 2011. Update: I’ve continuing doing predictions every year all the way through 2020 and intend to continue. See my 2012-2020 predictions here. Appeals court rules in favor of federally funded hESC research. This is more of a hope
Predictions for Stem Cells in 2011 Read More »
Advanced Cell Technology (ACT) announced that the FDA has approved their second human ES cell-based clinical trial, a combined Phase I/II, for the treatment of blindness. Advanced Cell Technology As a result, soon ACT will have two active, human ES cell-based clinical trials, both using the same human ES cell-based drug. The aim of the
FDA approves Advanced Cell Technology second stem cell trial for blindness 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 »
If IPS cells are not ready for prime time, it is probably due to these three critical challenges for these amazing cells. TUMORIGENICITY Those of us who work with IPS cells are very excited about their potential for use in regenerative medicine therapies. One serious hurdle we have talked about in the past is tumorigenicity.
Not ready for prime time: the three critical challenges for IPS cells Read More »
A paper just came out in PNAS entitled “Promotion of direct reprogramming by transformation-deficient Myc“. The main thrust of this paper is that the tumorigenic and pluripotency-related functions of Myc could be separated. It focused primarily on the lesser studied LMyc. The topic of the intertwined good (pluripotency) and bad (tumorigenicity) functions of Myc, addressed
Tumorigenicity and Pluripotency teased apart? Not yet for Myc Read More »