m6A Hypermethylation of SNCA mRNA Stabilises Alpha-Synuclein Transcript and Pro…

Mechanistic description

N6-methyladenosine (m6A) hypermethylation of SNCA mRNA in substantia nigra dopaminergic neurons stabilises the transcript, increases alpha-synuclein protein levels, and lowers the concentration threshold for protein aggregation into Lewy bodies. Pharmacological inhibition of METTL3 (the primary m6A writer) should reduce SNCA mRNA stability, lower alpha-synuclein protein levels, and decrease aggregation in PD model neurons.

Mechanism / pathway

SNCA
→
m6A RNA methylation
→
Parkinson disease

Evidence for (5)

R406 and its structural analogs reduce SNCA/α-synuclein levels via autophagic degradation.

PMID:40143425 2025 Autophagy
Mitochondrial Dysfunction and Mitophagy in Parkinson's Disease: From Mechanism to Therapy.

PMID:33323315 2021 Trends Biochem Sci
MLKL deficiency alleviates neuroinflammation and motor deficits in the α-synuclein transgenic mouse model of Parkinson's disease.

PMID:38041169 2023 Mol Neurodegener
Recombinant pro-CTSD (cathepsin D) enhances SNCA/α-Synuclein degradation in α-Synucleinopathy models.

PMID:35287553 2022 Autophagy
α-Synuclein antisense oligonucleotides as a disease-modifying therapy for Parkinson's disease.

PMID:33682798 2021 JCI Insight

Evidence against (1)

PMID:37309980

Evidence matrix

5 supporting 0 contradicting

100% supporting

Supporting

R406 and its structural analogs reduce SNCA/α-synuclein levels via autophagic degradation. PMID:40143425 · 2025 · Autophagy
Mitochondrial Dysfunction and Mitophagy in Parkinson's Disease: From Mechanism to Therapy. PMID:33323315 · 2021 · Trends Biochem Sci
MLKL deficiency alleviates neuroinflammation and motor deficits in the α-synuclein transgenic mouse model of Parkinson's disease. PMID:38041169 · 2023 · Mol Neurodegener
Recombinant pro-CTSD (cathepsin D) enhances SNCA/α-Synuclein degradation in α-Synucleinopathy models. PMID:35287553 · 2022 · Autophagy
α-Synuclein antisense oligonucleotides as a disease-modifying therapy for Parkinson's disease. PMID:33682798 · 2021 · JCI Insight

Contradicting

No contradicting evidence recorded.

Cite this hypothesis

Citation

etl-backfill (2026). m6A Hypermethylation of SNCA mRNA Stabilises Alpha-Synuclein Transcript and Pro…. SciDEX hypothesis. https://prism.scidex.ai/hypotheses/32b2dd07-7c9a-416d-a40f-f5070af94d48

BibTeX

@misc{scidex_hypothesis_32b2dd07,
  title        = {m6A Hypermethylation of SNCA mRNA Stabilises Alpha-Synuclein Transcript and Pro…},
  author       = {etl-backfill},
  year         = {2026},
  howpublished = {SciDEX hypothesis},
  url          = {https://prism.scidex.ai/hypotheses/32b2dd07-7c9a-416d-a40f-f5070af94d48},
  note         = {SciDEX artifact hypothesis:32b2dd07-7c9a-416d-a40f-f5070af94d48}
}