Nature was right in choosing CRISPR diagnostic as one of the seven technologies to watch in 2022. The latest news is a test called mCARMEN, described in Nature Medicine. Pardis Sabeti (Broad Institute/Harvard), Cameron Myhrvold (Princeton University) and colleagues adapted a massively multiplexed technology presented in 2020 to be “faster, more sensitive and more easily implemented in clinical and surveillance labs”.
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Engineering lymphocytes to recognize cancer cells is a strategy that has already produced convincing clinical results thanks to CAR-T therapy. But this is not the only approach on the horizon. An emerging alternative is TCR-engineered lymphocytes, where TCR stands for T-cell receptors.
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Two papers and a news item not to be missed. The first one is “Genome-edited powdery mildew resistance in wheat without growth penalties” published in Nature by a Chinese team led by Caixia Gao.
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Doug Olson was treated with engineered T cells (CAR-T) for incurable leukemia in 2010, well before CRISPR was born. Over a decade later, he still is cancer-free (see the paper in Nature), and the pioneer of the approach, Carl June, is reported to have said the C-word: cured. As immunotherapy and genome editing are crossing paths, hopefully, we expect further good news from the CAR-T frontier in the future.
The first paper on a CRISPR xenotransplant is out in the American Journal of Transplantation. It’s about two swine kidneys with 10 modified genes transplanted into a dead brain man as a proof of concept. The surgery was performed on September 30 by Jayme Locke and colleagues from the University of Alabama at Birmingham.
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If you like healthy food and biotechnology, you’ll love the news. Japan has given the go-ahead to market two CRISPR-edited fishes: a tiger puffer and a red sea bream, both developed by Regional Fish Co. together with Kyoto University and Kindai University.
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As you probably know, on January 7 at the University of Maryland Medical Center in Baltimore a 57 years old man named David Bennett became the first human to have his heart replaced with that of a CRISPRed pig. But what does make a xenoheart suitable for transplantation?
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The best way to summarize the new metaCRISPR approach, recently published in Nature Microbiology, is the Twitter thread by Jill Banfield:
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Lulu and Nana are three years old. Amy is the name Nature Biotechnology uses to refer to the third CRISPR baby, born in late spring-early summer 2019. Their health is a closely held secret, that Vivien Marx has investigated for the journal’s December issue. “A full understanding of the health risks faced by the children due to their edited genomes may lie beyond the reach of current technology”, she writes. Despite or maybe because of that, the news feature is well worth reading. Below are a few points:
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CRISPeR FRENZY 