Why do GBA mutations specifically target layer 5 cortical neurons for phospho-α-synuclein pathology?

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Description

The study identifies preferential accumulation of phospho-α-synuclein in cortical layer 5 neurons in double mutant mice, but provides no mechanistic explanation. Understanding this cellular selectivity could reveal vulnerability factors critical for targeted therapeutic approaches.

Gap type: unexplained_observation Source paper: Synaptic vesicle endocytosis deficits underlie GBA-linked cognitive dysfunction in Parkinson’s disease and Dementia with Lewy bodies. (2025, bioRxiv : the preprint server for biology, PMID:39484386)

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