Mito.newsMito.news
← All articlesEditorial brief · abstract-levelScore 87/100Confidence high
biorxiv2026-10-04therapeuticsneurobiologymTORglia

RAPTOR antisense oligonucleotides cool GATOR1-mutant mTORC1, fix astrocyte mitochondria, and extend mouse survival

Antisense oligonucleotides against RAPTOR, the mTORC1 scaffold, lower RAPTOR in mouse and human systems and damp mTORC1 in GATOR1-deficient models (NPRL2, NPRL3, DEPDC5). That rescue includes neuronal hyperexcitability, astrocytic mitochondrial dysfunction, and spontaneous seizures. One treatment extends longevity in both neuronal and astrocytic GATOR1-deficiency models.

Mito.news · at a glance

Signal profile (abstract-level)

therapeutics · neurobiology · mTOR · glia

Score 87/100BIORXIVhigh confidencetherapeutics
87
Importance
65
Mito signal
53
Dysfunction
83
Evidence
85
Translational

Editorial signal profile from the abstract (importance score, mito keywords, dysfunction tags, evidence density, translational cues). Not a figure reproduced from the preprint PDF.

Finding. If GATOR1 cannot restrain mTORC1, you can still take the scaffold away. Hadj-Aissa, Dutchak and colleagues fire antisense oligonucleotides at RAPTOR. RAPTOR protein falls in mouse and human systems, and pathological mTORC1 signalling falls in GATOR1-deficient models. Neurons stop being so hyperexcitable. Astrocyte mitochondria, which this disease remodels, recover as stated. Spontaneous seizures drop. One treatment lengthens life in both neuronal and astrocytic GATOR1-deficiency models.

Why this paper matters

NPRL2, NPRL3 and DEPDC5 are among the commonest genetic epilepsies. Rapalogs are blunt. An ASO against RAPTOR is a way to turn the volume down on mTORC1 without inventing a new kinase inhibitor. The mitochondrial reason to file it is the astrocyte: metabolic remodeling of glial mitochondria is on the rescue list, not a footnote.

What they actually measured

ASO, RAPTOR, mTORC1, excitability, astrocyte mitochondria, seizures, survival. Single-dose longevity is the standout in vivo claim.

How to read the score

High 80s. Genetic epilepsy, ASO, seizures, survival, glial mitochondria. Confidence is high for the mouse package.

Caveats

No human dosing. Mitochondrial rescue needs a number in the figures. Over-suppressing RAPTOR is a theoretical toxicity.

What to do with it

If you model GATOR1 astrocytes, add a mitochondrial assay to the ASO readout. If you develop CNS ASOs, this is a RAPTOR sequence to watch. Do not stop anti-seizure medicine from this brief.

Free HTML is above. Bots pay for JSON at /api/v1/papers/10-64898-2026-09-30-755052. Optional wallet tester: MetaMask ($0.005).

Source preprint

RAPTOR-targeted Antisense Oligonucleotides Restrict Pathological mTORC1 Activity in GATOR1-dependent Disease

10.64898/2026.09.30.755052

Hadj-Aissa I, Muller M, Desmeules A, Marcadet L, Lachance-Brulotte T, Morin N, Huot M, Soliz J, Sephton CF, Dutchak PA.

Related briefs