Base editing of the lamin farnesylation motif rescues progeria phenotypes in organoids
Lipid nanoparticle delivery of base-editing mRNA restored DNA repair and heterochromatin structure in human neuromuscular models of premature aging.
Nature communications · Kim DW et al. · Paper published 31 Aug 2026
Using isogenic human pluripotent stem cell-derived neuromuscular organoids, researchers evaluated a mutation-agnostic base-editing platform to address Hutchinson-Gilford progeria syndrome. In these human organoid models, progerin accumulated in muscle tissue, which sequestered the DNA repair protein 53BP1 and prevented the formation of DNA damage foci. The team designed a targeted base editor named FATE to selectively disrupt the LMNA farnesylation motif without altering other farnesylated proteins. Delivering FATE mRNA using lipid nanoparticles yielded efficient gene editing in the diseased organoids. The treatment eliminated perinuclear progerin, restored 53BP1 mobility, rebuilt DNA repair foci, and normalized heterochromatin architecture.
Why it matters
Disrupting the lamin farnesylation motif provides a mutation-independent method to fix nuclear damage and DNA repair failure in progeroid disease. This demonstrates that RNA-based in situ genome editing can rescue core cellular dysfunctions linked to accelerated aging.
Caveats
The findings are limited to in vitro human pluripotent stem cell-derived organoids and have not yet been evaluated in living organisms. Furthermore, the abstract does not assess long-term safety, off-target editing, or functional durability in mature physiological systems.
Written from the paper’s abstract, and every claim checked against it before publishing. Read the paper for the full methods and data.
The paper
Mutation-agnostic base editing of the progerin farnesylation site rescues Hutchinson-Gilford progeria syndrome phenotypes in neuromuscular organoids
Kim DW, Kwon EJ, Jeon BJ et al.
Nature communications · 31 Aug 2026 · Peer-reviewed
- Relevance
- Core geroscience
- News value
- Important
- Evidence
- Cells
- Status
- Peer-reviewed
Latest stories
Gastrodia elata polysaccharide extends worm lifespan and mitigates age-related deficits in mice
The treatment reduced oxidative stress, suppressed inflammation, and remodeled the gut microbiome in naturally aging mice while prolonging survival in nematodes.
Food science & nutrition · Shi H et al.
Simulated microgravity increases transcriptomic age in human organoids
Culturing human neural, cardiac, and tonsil models in rotating-wall vessels for 24 hours also shifted contraction dynamics and immune gene expression.
bioRxiv · Mu W-C et al.
Rank normalization resolves distinct proteome degradation pathways in cultured cells
A percentile-based normalization method reveals substrate preferences between proteasomal and lysosomal clearance systems in cultured cells.
bioRxiv · Gao Z et al.
Melissic acid reduces senescence in human stem cells via cAMP signaling
A screen of 800 natural compounds identified a phytochemical that activates autophagy and restores cell-cycle activity in models of cellular exhaustion.
Frontiers in pharmacology · Yang K et al.