What upstream signals activate the prosaposin-GPR37-IL-6 axis specifically in oligodendrocytes during PD?

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Description

While the study identifies this novel signaling pathway in oligodendrocytes, the initial triggers that activate prosaposin release or GPR37 expression remain unexplained. This mechanistic gap limits understanding of disease initiation.

Gap type: unexplained_observation Source paper: Oligodendrocytes drive neuroinflammation and neurodegeneration in Parkinson’s disease via the prosaposin-GPR37-IL-6 axis. (2025, Cell Rep, PMID:39913287)

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