Search Results for: nature

Weekly reads: Vertex, stem cells for MS, Athersys, 900-day paper review at Nature

“While still early, these results support the continued progression of our VX-880 clinical studies, as well as future studies using our encapsulated islet cells, which hold the potential to be used without the need for immunosuppression,” said Bastiano Sanna, Ph.D., executive vice president and chief of cell and genetic therapies at Vertex.

Vertex Pharmaceuticals has a lot going for it right now on the cell therapy front. For instance, they have the strongest type 1 diabetes cell therapy pipeline after some recent acquisitions. Still it’s not a simple matter to succeed in the cell therapy space even with one therapy for one targeted disease. Trials are tough …

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FDA warns Neil Riordan U.S. perinatal firm Signature Biologics

Signature Biologics, Neil Riordan

Neil Riordan may be most well-known for running the Panama stem cell clinic called simply enough the Stem Cell Institute, but he also has a U.S. firm Signature Biologics. The Panama  clinic sells unproven umbilical cord cells grown in a lab for a host of medical conditions. I’ve had many concerns about it over the …

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Weekly reads: gene therapy nod, Nature pub ethics, CRISPR LDL

Multipotent & totipotent vs pluripotent stem cells, very early human embryos totipotent stem cells

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 …

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Nature paper claims young CSF fights brain aging in mice

old mice get young CSF

A new Nature paper argues that young CSF fights brain aging. Young CSF vs. young blood CSF is the cerebrospinal fluid that surrounds the brain, including those of young mice. The claim is that when young CSF is injected into the brain/CNS cavity of old mice, it makes the aged brains seem younger. And function …

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Probing Nature pub’s puzzling claim of brain cells globetrotting into prostate tumors

Mauffrey-Nature-Prostate-Neural-invasion-2019-Fig-3ce

A new Nature paper makes the striking claim that neural precursor cells of the brain migrate all the way to prostate tumors. Furthermore, the team led by Claire Magnon claims that these long-distance cellular travelers from the brain not only take up residence in the prostate but also strongly drive progression of the prostate cancer …

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Don’t mess with (mother) Nature: why risk taking on a powerhouse journal?

Dont-mess-with-mother-nature

When I was a kid there was this commercial on TV for Chiffon margarine (fake butter) with the slogan, “It’s not nice to fool mother nature!” As a kid I thought it was dumb but kind of funny. A modified version of that mother nature advertising slogan has become a cultural tagline. Don’t mess with …

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Nature yanks article that was actually advertisement on controversial stem cells

Muse-cell-ad-on-Nature

Something very strange just happened at the journal Nature related to what’s called Muse cells. Kudos to them for dealing with it quickly though. They published an unreviewed research “article” on controversial (perhaps non-existent) stem cells called “Muse cells” that was actually a paid advertisement. After I communicated with the Nature team eventually they ended up …

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Context for my Nature piece on redefining “gene edit” to be more precise

CRISPR-gene-edit-vs-mutation-1

When I say “gene edit” or “genome editing”, what’s the first thing that pops in your mind? It will depend on who you are. For many lay people until a few weeks ago when the world heard about He Jiankui‘s claim of CRISPR’d babies they may not have had anything pop in their heads when …

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Doubts raised on key points of Nature paper on CRISPR gene editing of human embryos

Egli-Mitalipov-preprint

Is it possible that CRISPR gene editing actually didn’t happen in many of the human embryos in that big Nature paper that made such news a couple weeks back? Some doubts have emerged that call the main conclusions of the paper into question and argue that more definitive studies are needed to be sure. An …

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