December 1, 2020

The Niche

Knoepfler lab stem cell blog

Kazuo Takayama

6 min read

Three new studies reported in preprints all show severe DNA damage to human embryos from CRISPR a surprisingly high percentage of the time including in some cases loss of heterozygosity (LOH). Anywhere from about a quarter to half of CRISPR’d embryos exhibited major genome damage. As readers of The Niche know, I never was a fan of the idea of doing CRISPR on human embryos for reproductive use, although I have been supportive of limited, thoughtful in vitro gene-editing studies on human embryos. The …Read More

3 min read

Organoids are providing a novel avenue into the pathogenesis of COVID-19 and novel models for drug screening. A number of new preprints on respiratory organoids shed new light in this area. They were highlighted in a Nature newsy piece, Mini organs reveal how the coronavirus ravages the body. It’s a challenge to study COVID-19 infections because just infecting 2D cultures of various respiratory cells in a dish doesn’t necessarily tell you all you need to know about what goes on in the patient. While 3D organoids aren’t …Read More