Compact tool activates several genes at once in mice
A single virus-based delivery vehicle carried up to eight guide RNAs to activate six different genes in mice.
Limit: The abstract omits which disease features improved and how large the effects were
Edited by Boris Djordjevic · AgingResearch.News
In experiments in mice, researchers tested a compact system for increasing gene activity using a single virus-based delivery vehicle. The system used an engineered protein, denCas12m, that processed a string of guide RNAs into individual guides. These RNA molecules directed the system to selected genes without cutting DNA.
One vehicle delivered up to eight guides to activate six different genes in mice. Several guides could also work together at different sites to activate a single gene. The researchers reported rescue of disease-related features in mouse models of Duchenne muscular dystrophy, a muscle-wasting disease, and Scn1a haploinsufficiency. The latter means that one working copy of the Scn1a gene cannot supply enough of its product.
Why it matters
Coordinated gene activation may offer aging researchers a tool for testing how combinations of genes contribute to age-related changes.
Caveats
These were experiments in mice, not tests in people. The abstract did not specify which disease features were rescued or how large those effects were.
- Dencas12m
- Resources: datasets, atlases and tools
- SCN1A
- Duchenne muscular dystrophy
- Scn1a haploinsufficiency
- Mice
The paper
An engineered, compact Cas12m variant for multiplexed gene activation in vivo
Shanghai Institute of Materia Medica
Nature Biotechnology, Oct 28, 2026
