Nobody’s perfect. Neither CRISPR nor peer-review

nobodyPerfection is not of this world, and no technology is perfect. But tolling the bell for CRISPR because of a single preliminary study last week was premature at best. Many voices are doubting the meaning of the Nature Methods paper reporting “hundreds of unintended mutations” putatively caused by genome editing. Some researchers have already announced that critical analyses and rebuttals are forthcoming. Continue reading

Expect the unexpected. CRISPR week roundup

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CRISPR binge-watchers have eyes wide shut. Medicine historian Nathaniel Comfort demolishes for Nature the long-awaited book by the queen of genome editing Jennifer Doudna “A crack in creation”. CRISPR stocks fall after the publication of a small preliminary study on off-target mutations. New Scientist announces as many as 20 human trials will be under way soon, mostly in China.

Gene therapy meets CRISPR

gene therapyThe aim is engaging: to treat an increasing number of diseases by correcting the underlying genetic defects. And researchers are breathing optimism at last. The San Raffaele Telethon Institute for Gene Therapy (SR-Tiget) in Milan has already treated 58 patients (including ADA-SCID, leukodystrophy, Wiskott-Aldrich syndrome and beta-thalassemia) and the count is approaching 300 worldwide. Moreover the promise of genome editing is looming on the horizon. We discussed the present and future of the field with the SR-Tiget director Luigi Naldini, who contributed to the latest report on human genome editing published by the US National Academies of Sciences and Medicine. Continue reading

‘Do-it-yourself’ CRISPR kits. How much should we worry?

crisprkit+resize-edFrom the European Centre for Disease Prevention and Control website.

«On 24 March 2017, German authorities reported the contamination of a ‘do-it-yourself’ (DIY) Bacterial Gene Engineering CRISPR kit with pathogenic bacteria (risk group 2), including some that are multidrug-resistant with production of Extended Spectrum Beta-Lactamase (ESBL). The kits are produced in the United States and sold over the internet, targeting non-professional users who want to study biology and life science using similar biotechnology engineering tools found in laboratory settings. In its risk assessment published today, ECDC identifies the risk of infection for users of the kits unaware of the contamination with pathogenic agent as low, as the manipulation of the kit does not involve percutaneous injury-prone manipulations. Continue reading

CRISPR in RNA Wonderland

doudna_crispr_wide-cb9478286d39615ed64291ea95d4cfe022596aa2-s900-c85This week our journey among leading labs takes us to meet a pioneer of gene silencing. Pino Macino contributed to the birth of RNA interference, a field awarded a Nobel prize in 2006, and teaches cell biology at Sapienza University of Rome.  He thinks CRISPR is a great leap forward in understanding the function of genes. Continue reading

Is Italy’s agriculture ready for CRISPR?

viteGenome editing seems tailored for Italian agriculture as DNA can be modified without introducing foreign sequences and without destroying the legal identity of traditional cultivars. CRISPR could help developing plants more resistant to diseases, for example, avoiding at the same time bureaucracy and public perception problems that have slowed the adoption of GMOs. The stakes are high but some hurdles stand in the way. We have interviewed  Michele Morgante, geneticist from the University of Udine and President of the Italian Society of Agricultural Genetics.    Continue reading