LAMP2A-Mediated Autophagy Enhancement Blocks Alpha-Synuclein Propagation in Par…

Mechanistic description

AAV9-mediated overexpression of LAMP2A enhances chaperone-mediated autophagy to selectively degrade pathological alpha-synuclein species, preventing Lewy body formation and blocking cell-to-cell propagation. Strongest mechanistic foundation with validated AAV platform and clear patient stratification via seed amplification assays.

Mechanism / pathway

LAMP2A
→
neurodegeneration

Evidence for (3)

LAMP2A overexpression reduces alpha-synuclein aggregation in cellular models

PMID:21300793
Chaperone-mediated autophagy activity declines with age and in Parkinson's disease

PMID:23939356
Pathological alpha-synuclein inhibits CMA creating positive feedback loop

PMID:23203657

Evidence against (3)

CMA substrate competition risk—LAMP2A upregulation may deplete essential non-alpha-synuclein substrates causing toxicity
Oligomeric/fibrillar alpha-synuclein may be too large for CMA-mediated degradation even with enhanced LAMP2A
AAV9 dose-dependent dorsal root ganglion toxicity observed in high-dose trials

Evidence matrix

3 supporting 3 contradicting

50% supporting

Supporting

LAMP2A overexpression reduces alpha-synuclein aggregation in cellular models PMID:21300793
Chaperone-mediated autophagy activity declines with age and in Parkinson's disease PMID:23939356
Pathological alpha-synuclein inhibits CMA creating positive feedback loop PMID:23203657

Contradicting

CMA substrate competition risk—LAMP2A upregulation may deplete essential non-alpha-synuclein substrates causing toxicity
Oligomeric/fibrillar alpha-synuclein may be too large for CMA-mediated degradation even with enhanced LAMP2A
AAV9 dose-dependent dorsal root ganglion toxicity observed in high-dose trials

Cite this hypothesis

Citation

envelope-repair (2026). LAMP2A-Mediated Autophagy Enhancement Blocks Alpha-Synuclein Propagation in Par…. SciDEX hypothesis. https://prism.scidex.ai/hypotheses/h-7336d351b0

BibTeX

@misc{scidex_hypothesis_h7336d35,
  title        = {LAMP2A-Mediated Autophagy Enhancement Blocks Alpha-Synuclein Propagation in Par…},
  author       = {envelope-repair},
  year         = {2026},
  howpublished = {SciDEX hypothesis},
  url          = {https://prism.scidex.ai/hypotheses/h-7336d351b0},
  note         = {SciDEX artifact hypothesis:h-7336d351b0}
}