I’ve been thinking more about the steady stream of epigenetic clock research out there. How convincing is the research on such clocks? Do they tightly relate to human biological age? The related notion of turning back such hypothetical clocks to reverse aging is exciting but controversial. It doesn’t help that some are hyping all of …
Is DNA methylation destiny? Diving into new epigenetic clock research Read More »
Early during my postdoc I was primarily interested in the role of Myc genes both in cancer and in stem cells, work that later included embryonic stem cells. These cells are often called ES cells. At first I first started studying N-Myc in neural stem cells using a conditional knockout approach. However, soon after I was …
Weekly reads: embryonic stem cells, Parkinson’s, Alzheimer’s Read More »
Altos Labs is an intriguing multi-institution experiment in so-called rejuvenation research all rolled into one biotech. This relatively new entity headquartered in California has multiple Nobel laureates in the biomedical field in leadership. Even more importantly it has a large group of great researchers leading its individual research labs. This all leads to high expectations, …
Some surprises from new analysis of Altos Labs papers Read More »
Who is David Sinclair and why is he all over the media related to anti-aging efforts? This post is my effort to fact-check Sinclair’s statements in the context of the broader rejuvenation arena. In the process I also review his most recent paper from my view as a stem cell and cancer biologist interested in …
Review of new David Sinclair paper, supplements & anti-aging glitz Read More »
Totipotency literally means all powerful, but it refers in biology to specific cells. These cells can make every type of cell in the body of an organism plus the extraembryonic tissues needed for development. This includes humans. So if you could reprogram human cells like blood or skin cells into totipotent stem cells, you might …
Weekly reads: gene therapy nod, Nature pub ethics, CRISPR LDL Read More »
As we think about how much of a role belief should play in the hard sciences such as cell biology, a supposed cell type called VSEL or very-small embryonic stem cell-like cells comes to mind. For these guys it seems to me that the ratio of data to belief isn’t great. VSELs have nine lives. I …
The role of belief in hard science: the VSEL case Read More »
A team led by Harvard professor David Sinclair had a recent Cell paper on reprogramming to fight aging that I reviewed here on The Niche. I thought the paper was exciting and important. Note that in vivo reprogramming was first done more than a decade ago. Sinclair did have a novel fast-forward aging method and overall …
Weekly reads: oocytes from males, David Sinclair longevity inc, diabetes, He Jiankui Read More »
What is a stem cell niche? It’s the home of stem cells. The stem cell niche is a fascinating environment. It has many constituents that impact stem cell behavior and even eventual stem cell transplant functions. In today’s weekly reads, we’ll start with the niche as there have been several interesting papers on this topic. The …
Weekly reads: stem cell niche & AI stumble on health Read More »
Near-billionaire Bryan Johnson apparently does not like getting old and he’s trying to do something transformative about it. He and his team are experimenting in a big way. As a 55-year-old myself, I can’t blame him for wanting to fight aging in general. However, his anti-aging project includes some extreme stuff. Will some in the …
Skepticism on the Bryan Johnson anti-aging extravaganza Read More »
There have been rare instances like with scientist James Wilson where researchers were involved in what I would call major misconduct but somehow managed to bounce back. In a sense, they were given second chances in part by regulators but also by other scientists or supporters. However, after extraordinary misconduct, especially contributing to the death …
2nd chances after big misconduct? He Jiankui, James Wilson, others Read More »