ArticleAutophagy2025
GORASP2 promotes phagophore closure and autophagosome maturation into autolysosomes.
Article in Autophagy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Kidney‑enriched lipid nanoparticles delivering ANXA2 alleviate renal ischemia-reperfusion injury via CHMP2A-mediated necroptosis inhibition.Journal of nanobiotechnology · 2026Article
- Cryo-EM structure of the human MON1A-CCZ1-RAB7A complex provides insights into nucleotide exchange mechanism.Life metabolism · 2025Article
- Spatio-temporal processes in autophagosome-lysosome fusion.Medical review (2021) · 2025Review
- Modulating Osteoclast Activity and Immune Responses with Ultra-Low-Dose Silver Nanoparticle-Loaded TiOJournal of functional biomaterials · 2025Article
- Causal Relationships Between Neuropathic Pain and Alzheimer's Disease: A Multi-Omics Mendelian Randomization Study with Exploratory Evidence of a Potential Protective Role of Diabetic Neuropathy.Journal of pain research · 2025Article
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Authors and funding
10 authors.
Funding
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Abstract
As the central hub of the secretory pathway, the Golgi apparatus plays a crucial role in maintaining cellular homeostasis in response to stresses. Recent studies have revealed the involvement of the Golgi tether, GORASP2, in facilitating autophagosome-lysosome fusion by connecting LC3-II and LAMP2 during nutrient starvation. However, the precise mechanism remains elusive. In this study, utilizing super-resolution microscopy, we observed GORASP2 localization on the surface of autophagosomes during glucose starvation. Depletion of GORASP2 hindered phagophore closure by regulating the association between VPS4A and the ESCRT-III component, CHMP2A. Furthermore, we found that GORASP2 controls RAB7A activity by modulating its GEF complex, MON1A-CCZ1, thereby impacting RAB7A's interaction with the HOPS complex. The assembly of both STX17-SNAP29-VAMP8 and YKT6-SNAP29-STX7 SNARE complexes was also attenuated without GORASP2. These findings suggest that GORASP2 helps seal autophagosomes and activate the RAB7A-HOPS-SNAREs membrane fusion machinery for autophagosome maturation, highlighting its membrane tethering function in response to stresses.
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