CRISPR best and worst in 2018

CRISPR contributed to Science’s Breakthrough of the Year and was also nominated for the Breakdown category by the same journal. The second nomination was an easy guess: He Jiankui and its baby-editing claim were also mentioned in Nature’s 10 for 2018. Much more interesting is the decision to celebrate cell-barcoding, the CRISPR-based technique used to track embryo development in stunning detail and over time. Continue reading

CRISPR, that old dress and what Art is

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BioArt is entering the genome-editing era. The first CRISPR artwork is a World War II dress, patched with silk and bacteria by British bioartist Anna Dumitriu. You can read more about its science and meaning in the CRISPR Journal and Labiotech. But where does the dress come from? And if this is art indeed, what about the galloping horse CRISPRed by George Church last year? I asked Dumitriu, please find the answers below.  Continue reading

CRISPRing the Neanderthal’s mind


Sapiens vs Neanderthalized brain organoids (credit A. Muotri)

Taking a peek into the brain of a Neanderthal specimen would be a dream for whoever is interested in the evolution of human intelligence. To get an idea of the cognitive abilities of our closest relatives, so far, anthropologists and neuroscientists could only study the fossil and archaeological record, but a new exciting frontier is opening up where paleogenetics meets organoids and CRISPR technologies. By combining these approaches, two labs are independently developing mini-brains from human pluripotent stem cells edited to carry Neanderthal mutations. Alysson Muotri did it at UC San Diego, as Jon Cohen reported in Science last week. Svante Pääbo is doing it at the Max Planck Institute in Leipzig, as revealed by The Guardian in May. Forget George Church’s adventurous thoughts on cloning Neanderthals. The purpose here is to answer one of the most captivating questions ever asked: did the mind of these ancient men and women, who interbred with our sapiens ancestors before going extinct, work differently from ours? Last but not least, with respect to the ethics of experimenting with mini-brains, don’t miss the perspective published in Nature.

The CRISPR world we live in

crispr distribution

“As of January 2018 Addgene has distributed more than 100,000 CRISPR plasmids to 3,400 laboratories worldwide. More than 6,300 CRISPR-related plasmids have been developed by over 330 academic labs and deposited into Addgene’s collection. Geographically, new CRISPR plasmids have been developed and deposited to Addgene’s collection from the Americas (led by the United States), Europe (led by Denmark), Asia (led by China), and Oceania (led by Australia), and shipped to some 75 countries.” [Reference: Enabling the Rise of a CRISPR World, Caroline M. LaManna and Rodolphe Barrangou, The CRISPR Journal, Vol. 1, n. 3, 2018]