My lab is focused in part on chromatin states in stem cells and cancer including heterochromatin. In fact, my lab’s website is chromatin.com. Heterochromatin is dense, often inactive chromatin. By H&E staining and electron microscopy, heterochromatin looks dark compared to the rest of the nucleus, largely composed of euchromatin. Toward the end of my postdoc […]
Weekly reads: heterochromatin, H3.3, Mesoblast bump Read More »
So many things go wrong during the lead up to clinically-evident Alzheimer’s disease. This complex disease pathway has, in turn, led to a vast array of approaches to try to treat or prevent Alzheimer’s. Most of these efforts one way or another have something to do with the amyloid plaques and tangles that accumulate in the
The Mayo Clinic does some great research on stem cells and regenerative medicine. However, at times I’ve felt that a few Mayo researchers are overexuberant. This mainly relates to certain not-yet-proven stem cell and related offerings. Fitting with that perception, the Mayo website also has some inaccurate stem cell content that leans toward overstating things.
Key Mayo Clinic stem cell webpage is overexuberant & outdated Read More »
Last week one of the most popular stories was about a preprint from a mammoth de-extinction research group led by George Church having made elephant stem cells. I finally got a chance to look carefully at their preprint. Elephant stem cells preprint and mammoth de-extinction The elephant stem cells preprint has solid data. It looks like
Weekly reads: elephant stem cells, RIP Connie Eaves, AI cell biology Read More »
A few dozen clinics in the US sell an unproven RNA therapy called supportive oligonucleotide therapy or SOT. The product comes from a Greek firm RGCC or Research Genetic Cancer Center, which also pre-tests patients’ gene expression to design the RNA product. Clinics marketing SOT in the US say it is intended to act by
Anti-aging might already be the big regenerative medicine story of 2024 and it’s only early March. Anti-aging hype going to the dogs? One of my 20 stem cell and regenerative medicine predictions for 2024 was that longevity would continue to make big news including in some not-so-great ways. In just over two months there has
There’s a fascinating type of olfactory cell. These so-called tuft cells have unusual characteristics, especially for nose cells. I had never heard of them before until reading a new article. The inside of the nose may not seem like a very attractive place but there are cool “nose stem cells” in there. More broadly, there
Weekly reads: cool olfactory tuft cells, T-cell therapy, NK cells Read More »
Readers of The Niche have asked me many questions about stem cells for autoimmune disease but the puzzle of why women get these conditions more often than men hasn’t come up before here. For instance, why is MS so much more common in women than men? It’s remained somewhat of a mystery over the years.
Exactly ten years ago today, on January 29, 2014, I wrote about two new Nature papers on so-called STAP cells. The papers claimed that stress alone could convert regular non-stem cells into some of the most powerful stem cells. More specifically, the authors claimed to make pluripotent stem cells similar to iPS cells this way.
A New Rochelle doctor has filed suit against the healthcare clinic firm Fountain Life alleging fraud. Now seems like a good time for an update on the firm. Peter Diamandis along with Bob Hariri, life coach Tony Robbins, and surgeon William Kapp founded Fountain Life, an early detection-focused healthcare company. Are they also a longevity firm? To
Fountain Life update: lawsuit by doc, high performance aging, Celularity trial plan Read More »