human embryo crispr

Mitalipov rebuts CRISPR pub critiques: strengthens case, but puzzles remain

Ma-et-al.-2018-Nature-FIgure-1

Remember that Shoukhrat Mitalipov lab paper on the use of CRISPR in human embryos? It’s back in the news. One of the biggest stories of 2017 centered on a Nature paper (Ma, et al., see my quick, initial review shortly after it was published here) from Mitalipov’s lab claiming both efficient repair of a disease-causing …

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Mulling over latest CRISPR tumult, this one from Nat Biot pub on DNA lesions

CRISPR-dart-board

If it seems to you like dramatic cautionary tales about CRISPR accompanied by all sorts of media are coming at us more frequently, it’s not your imagination. In the latest yesterday, it was reported in a new paper led by Allan Bradley that CRISPR-Cas9 results in sometimes large-scale chromosomal lesions at or even away from the …

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Why we shouldn’t view the human embryo as a gizmo even in the CRISPR era

human-embryo-modification

My first job in science was as a lab technician at UCSD School of Medicine and a big part of that job was growing cells called HUVECs or human umbilical vein endothelial cells. We isolated and grew the HUVECs from umbilical cords that we retrieved from the maternity ward of the UCSD hospital, which first …

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7 tech hurdles to human germline CRISPR

Human-crispr-challenges

Human germline CRISPR raises major bioethical considerations, but what about technical issues? Setting aside the many ethical issue about the general idea of human modification itself, could this really work? Yes in theory it could, but there are some very tough technological challenges that could and likely would cause failures or unacceptable outcomes at many steps …

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Why Mitalipov’s ‘magic’ room for human embryo CRISPR may give us pause

Shoukhrat-Mitalipov

The debate over whether the main conclusions of the Nature paper on human embryo CRISPR led by Shoukhrat Mitalipov’s lab at Oregon Health Sciences University (OHSU) are correct remains unresolved. Note that Nature just added an editorial alert just above the references section to their paper: “Updated online 02 October 2017. Editorial Note: Readers are alerted that some …

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1st Knockout Human Embryos Made with CRISPR: My Take on the Pub

Fogarty-Fig-3d-human-embryo-CRISPR-e1505774206656

Scientist make knockout human embryos with CRISPR? Today we see a new Nature paper (Fogarty, et al.) on CRISPR “gene editing” of human embryos, this time from the UK from Kathy Niakan’s group. Niakan got UK permission about 18 months ago to CRISPR healthy human embryos so they’ve been hard at work since. Because Fredrik …

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Mulling over that Mitalipov human embryo CRISPR pub, still many questions

human-embryo-modification

What really happened at the DNA level in the experiments in that high-profile CRISPR of human embryos paper from a team led by Shoukhrat Mitalipov at OHSU? Is the team right that they successfully conducted CRISPR of human embryos to correct a mutant gene, as they reported in their Ma, et al. Nature paper? Or is the Egli, …

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Mitalipov briefly responds to Egli preprint, stands by human embryo CRISPR pub findings

Shoukhrat-Mitalipov

There has been a wave of intense discussions both in the public domain such as on Twitter and behind the scenes over the new Egli, et al. preprint that challenges the main conclusions of the Ma, et al. Nature paper from Shoukhrat Mitalipov’s lab. Ma, et al. reported CRISPR gene editing of human embryos, arguing for …

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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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Big 5 questions anticipating Mitalipov human embryo CRISPR paper

human-embryo-modification

The human embryo CRISPR paper with Shoukhrat Mitalipov as senior author is coming soon. It will reportedly be focused on the use of CRISPR to genetically modify viable human embryos for reversal of a disease-associated mutation. While strangely press already broke early on this paper last week, as much as a week before the paper …

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