Search Results for: h3.3

Weekly stem cell reads: COVID kidney, FDA letter, H3.3, EO Wilson

EO Wilson

Happy New Year and get ready for another 364 more days of stem cell excitement and craziness in 2022. In the next day or two I’ll post my predictions for this new year. Recommended reads EO Wilson obit by Carl Zimmer in NYT. Who’s the next EO Wilson or someone like him with such big impact these …

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Allis lab Science paper on histone H3.3 in pediatric brain cancer

Allis-H3.3-paper-165x3001

It has been fascinating in the last year to see the unfolding story of mutations in histone variant H3.3 in pediatric glioblastoma and related tumors. It seems amazing that in just over a year, a whole new area of cancer research has rapidly progressed. As I discussed in a recent post, histone H3.3 is a …

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Histone H3.3: giving cells epigenetic flexibility

chromosomal bridge in histone H3.3 knockout

A relatively newly recognized, important player in the stem cell field is a molecule called histone H3.3. Histones are key components of chromatin with integral roles in regulating almost all aspects of cell behavior through orchestrating functions such as transcription and chromosome segregation. Histone H3.3 knockout My lab has just (April 9) published new studies …

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Brain cancer: why histones including H3.3 are so important

Why are most brain cancers so difficult to treat leaving the unfortunate patients who suffer from them in dire circumstances so often? The short answer is that we don’t know why. This lack of understanding is like a wall standing between the cures and us for these patients. We have to climb or knockdown this …

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Recommend reads: CRISPR baby guy free, DNMT3, sperm, Editas, hearing loss, reprogramming

Dura et al sperm development

We often don’t think of them that way but reproductive cells like sperm and egg are also relatives of stem cells, and it turns out that there are stem cells that make the reproductive cells too like sperm stem cells. Sperm and germ cell stem cells DNMT3A-dependent DNA methylation is required for spermatogonial stem cells …

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Weekly reads: MSC, p53, EuroGCT, fake fish, K27M CAR-T

mesenchymal cells

What exactly is a mesenchymal cell and what does the acronym MSC stand for these days? I took a stab recently at discussing mesenchymal cells and the MSC acronym so check that out. There is a great need for standards on MSCs and the products out there being marketed as MSCs are probably in reality …

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Weekly reads: aging, CRISPR delivery, hair, oocytes, paralysis

CRISPR-Model-Jacob-Corn-e1464305007640

The big news of the week was the launch of Altos labs and their ambitious plan to tackle aging through cell therapies. Altos has recruited a large number of top cell biologists away from academia. That team plus top biotech execs and a $3B war chest make Altos one to watch in coming years. I …

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Weekly reads: PRC2, 2 weird bits of news, pubs, COVID stem cell hype

PRC2 lineage commitment

I’d say the paper of the week is on how PRC2 mediated H3K27me3 can in some sense replace elements of DNA methylation to repress. Very cool. Here it is: Sex-specific chromatin remodelling safeguards transcription in germ cells, Nature. Weird stuff In a merger of opposites, City of Hope to buy Cancer Treatment Centers of America …

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Weekly stem cell reads: COVID, tail regeneration, aging

tail regeneration

The stem cell field lost a great scientist and friend this week with the passing of Meri Firpo from metastatic breast cancer. I’m going to post a tribute to Meri from several of us sometime this coming week. I’m in a bit of a somber mood but still trying to write, read, and do all …

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Weekly reads: New FDA guidance, brains, MSCs, senescence

human mouse marmoset brain

This week marked the release of new draft FDA guidance on cell and gene therapies. Is the FDA kind of like the guidance counselor at school or more like the principal? It probably depends on many factors. I also find it funny how pretty much everyone in academia and biotech industry works to be compliant …

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