Search Results for: nature

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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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

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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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Review of Nature paper: stem cell exosomes on the brain and aging

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Is there a stem cell connection between the brain and aging? Could a type of brain stem cell or the exosomes it secretes control whole body aging? A recent big Nature article from the lab of Dongcheng Cai argues an emphatic “Yes” to these questions, at least in mice. In the Zhang, et al paper, entitled …

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No radical life extension, says Nature paper, but Russian gets stem cell infusion to go for it

Jeanne-Calment-

Any takers on the idea that we can get radical life extension through new technologies like stem cells, organ replacement, cybernetics, or genetic modification? Or just through healthier living in general? A new Nature paper says there’s a natural limit on human lifespan around age 115 and getting past that is just not going to …

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Nature Biotechnology looking at NgAgo paper amidst reproducibility concerns

NgAgo-China-newspaper

When potentially game changing new technologies are reported such as NgAgo gene editing, both scientists and the public get excited, but especially if such new reports stem from a single paper it is wise to take a cautious approach for a while. The key question is whether the new findings will turn out to be …

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Perspectives: Nature editorial on stem cell oversight & clinics gets it right

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The journal Nature published an excellent editorial earlier this week on stem cell oversight and stem cell clinics. The piece, entitled ” FDA should stand firm on stem-cell treatments. US regulators must regain the upper hand in the approval system” struck just the right balance. It correctly supported the FDA’s data-centered approach to stem cell oversight and …

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