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August 22, 2025Open Access

Mutations in PLA2G6 impair ER–mitochondria contacts and ceramide homeostasis via GRP75 in Parkinson’s disease

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Authors

JLJiabin LiuNanfang HospitalQYQingsong YinZhengzhou UniversityRGRong GaoQingdao University

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Overview

Observational analysis revealed impaired mitochondria-Ca²⁺ transfer in Parkinson’s disease, highlighting GRP75's role and ceramide accumulation.

Key Points

  • Loss of pla2g6 leads to disrupted er-mitochondria contacts and accumulated ceramide levels, driving neurodegeneration.
  • Key findings indicate that loss of gr75 levels and impaired mitochondrial function occur in pla2g6 mutant mice.
  • Research employed pla2g6 knockout models and patient-derived neurons using pharmacological assays to assess mitochondrial dynamics.
  • Findings may enable therapeutic strategies targeting ceramide modulation or gr75 restoration for parkinson's disease.

Cite This Study

Liu et al. (2025) studied this question.

synapsesocial.com/papers/68af5231ad7bf08b1eada674https://doi.org/10.21203/rs.3.rs-7426255/v1
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Parkinson’s disease-associated PLA2G6 protects IP3R1 protein to control ER-mitochondria tethering and Ca2+ transfer2026 · 4 citations
  2. 2Targeting Lysosomal pH Restores Mitochondrial Quality Control in GBA1-Mutant Parkinson’s Disease2025
  3. 3Hexosylceramides are elevated in human, mouse and cellular Parkinson's disease and cause gene upregulations in neurons mimicking responses to pathogens2025
  4. 4Targeting Lysosomal pH Restores Mitochondrial Quality Control in GBA1-Mutant Parkinsons Disease2025
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