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An ancient RNA-guided system could simplify delivery of gene editing therapies

Broad Institute

An ancient RNA-guided system could simplify delivery of gene editing therapies By Corie Lok February 27, 2025 Breadcrumb Home An ancient RNA-guided system could simplify delivery of gene editing therapies The programmable proteins are compact, modular, and can be directed to modify DNA in human cells. Lisa Yang and Hock E.

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Octopuses rewire their brains to adapt to seasonal temperature shifts

Science Daily: Pharmacology News

The octopuses achieve this by editing their RNA, the messenger molecule between DNA and proteins. Researchers report that two-spot octopuses adapt to seasonal temperature shifts by producing different neural proteins under warm versus cool conditions.

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Life's building blocks in Asteroid Bennu samples

Science Daily: Pharmacology News

Scientists detected all five nucleobases -- building blocks of DNA and RNA -- in samples returned from asteroid Bennu by NASA's OSIRIS-REx mission.

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Editing without 'cutting': Molecular mechanisms of new gene-editing tool revealed

Science Daily: Pharmacology News

Functional analysis based on these structures also revealed how a 'prime editor' could achieve reverse transcription, synthesizing DNA from RNA, without 'cutting' both strands of the double helix. New research has determined the spatial structure of various processes of a novel gene-editing tool called 'prime editor.'

RNA 299
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New gene editing tool shows promise for treating diseases with multiple mutations

Science Daily: Pharmacology News

The system can be formulated completely as RNA, dramatically simplifying delivery logistics compared to traditional systems that use both RNA and DNA. Investigators have developed STITCHR, a new gene editing tool that can insert therapeutic genes into specific locations without causing unwanted mutations.

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Finding function for noncoding RNAs using a new kind of CRISPR

Science Daily: Pharmacology News

Genes contain instructions for making proteins, and a central dogma of biology is that this information flows from DNA to RNA to proteins. But only two percent of the human genome actually encodes proteins; the function of the remaining 98 percent remains largely unknown.

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Search algorithm reveals nearly 200 new kinds of CRISPR systems

Broad Institute

The work appears today in Science. The scientists found a surprising number and diversity of CRISPR systems, including ones that could make edits to DNA in human cells, others that can target RNA, and many with a variety of other functions. Zhang’s team thinks the new systems could be adapted for diagnostic technologies as well.

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