Description
This finding contradicts the established paradigm that autophagy is generally protective in neurons and neurodegenerative diseases. The counterintuitive result that blocking autophagy reduces neuronal death challenges current therapeutic approaches targeting autophagy enhancement.
Gap type: contradiction Source paper: Autophagy fails to prevent glucose deprivation/glucose reintroduction-induced neuronal death due to calpain-mediated lysosomal dysfunction in cortical neurons. (2017, Cell death & disease, PMID:28661473)
Resolution criteria
Gap resolved when: (1) Mechanistic studies delineate whether autophagy inhibition reduces neuronal death via reduction of autophagic cell death (type II), relief of mitochondrial hyperfusion, or suppression of excessive mTOR-independent flux; (2) In vitro glucose deprivation/reintroduction model in ≥3 neuronal cell lines confirms the protective effect of autophagy inhibition (3-MA or Atg7-KO) with ≥30% reduction in cell death vs. controls; (3) In vivo validation in ischemia-reperfusion mouse model (n≥15/group) shows the same protective phenotype with autophagy inhibition; (4) Single-cell transcriptomics identifies the specific autophagic pathway (mitophagy, ER-phagy, or bulk autophagy) responsible for paradoxical cell death, enabling context-dependent therapeutic design.