While the European Union still grapples with the political complexity of revising its regulatory framework on GMOs, post-Brexit Britain has already made up its mind. In late March, London passed the Genetic Technology (Precision Breeding) Act, with the royal assent and to the delight of British researchers. For those familiar with the history of the GM controversy, this is a momentous event with strong symbolic value.
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“There is more wit in these bottles than in all the books of philosophy in the world,” wrote Louis Pasteur in 1843, looking forward to the pleasure of toasting with a friend (Charles Chappuis). The French microbiologist, whose bicentenary of birth was celebrated last year, was one of the fathers of the science of wine, as well as of germ theory. I wonder what he would write today, knowing how much progress is being made by geneticists to preserve the spirit of ancient vines while protecting them from the evils of diseases.
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The DNA double helix is about to turn 70 years old. I wrote about it in my column in the Italian magazine 7-Sette. But as a tribute, it still seemed a bit short. So I asked artificial intelligence for help: ‘Dear Chat, can you improvise a rap from the double helix to CRISPR?’ Said, done.
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The third – and perhaps final – act of the Human Genome Editing Initiative ended last week. The first summit (Washington 2015) was held amid enthusiasm for the invention of CRISPR, with the aim of fostering a constructive dialogue between science and society. The second edition (Hong Kong 2018) was dominated by the birth in China of the first edited human beings. The main points in the agenda of geneticists and bioethicists meeting a few days ago (London 2023) was to overcome the shock and focus on the next challenges: broadening the range of treatable diseases, reducing the costs of therapies, simplifying them so they can be administered anywhere in the world, and reach as many sick people as possible.
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The Innovative Genomics Institute runs a program aiming to “supercharge plants and soils to remove carbon from the atmosphere” with the help of CRISPR and funding from the Chan Zuckerberg Iniziative. I asked Andy Murdock, communications director at IGI, three questions to update the picture. Please see his answers below.
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The pandemic has accelerated progress in the field of lipid nanoparticles (LNP), and now CRISPR-based treatments are set to reap the benefits.
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The alarm about the impending extinction of bananas has been raised over and over in the media over the past decade. How worried do we need to be? And what are plant geneticists doing to ensure long life for this fruit loved by consumers around the world and celebrated by so many artists?
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David Bennett, the first patient transplanted with a genetically edited pig heart, died on March 8 last year, two months after the surgery, presumably from a latent pig virus (a problem that does not seem hard to solve with more stringent protocols and screening, as Linda Scobie explained to me a few months ago). Since then, experimental transplants have continued in brain-dead patients who had donated their bodies to research. After xenokidneys with a single genetic modification transplanted in late 2021, in the summer of 2022 it was the turn of ten edits xenohearts. The state of the art now is that the potential of the approach still appears high, as does the morale of specialists.
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The Chinese scientist who edited the CRISPR babies was released from prison last spring. He tweets lightheartedly announcing that he has opened a new lab in Beijing. He claims to be dedicated to rare diseases. He is looking for funding that hopefully no one wants to give him. In the rogue experiment that made him famous, he violated so many ethical principles that the only thing one can hope for is that he changes jobs. Is it appropriate for influential newspapers and prestigious institutions to give him a limelight for this attempt to come back on the scene?
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Beating the heat is one of the goals most vigorously pursued by plant geneticists. A solution is not yet in sight, but after so many years of research, it is clear that there are several avenues worth exploring. The three most important things are testing, testing, testing.
The first consideration is that plants can adopt different strategies to survive when water is scarce. You can distinguish between drought resistance and water use efficiency, or go subtle by talking about drought avoidance, drought escape, and drought tolerance.
Another basic premise is that drought can vary in intensity and duration, so that a plant capable of tolerating moderate stress may still succumb under more extreme conditions. Further complicating matters is the fact that, to be adopted by farmers, future crops will have to prove not only more resilient but also as productive as the varieties they are intended to replace. Two strategies are being pursued at the University of Milan with the help of CRISPR.
CRISPeR FRENZY 