ArticleThe EMBO journal2024
Connexin43 promotes exocytosis of damaged lysosomes through actin remodelling.
Article in The EMBO journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
12 citing papers in PubMed.
- SARS-CoV-2 Delta variant-specific ORF3a mutations destabilize lysosomal homeostasis to trigger lysosomal damage-mediated cell death.Communications biology · 2026Article
- The C9orf72/SMCR8 complex maintains microglial homeostasis via RAB8A-ESCRT-mediated lysosomal repair.The EMBO journal · 2026Article
- Metabolic Imaging and Molecular Signatures Reveal Metabolic Phenotypes in Recurrent Glioblastoma.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2026Article
- Building the bridges: molecular mechanisms of tunneling nanotube formation.Cellular and molecular life sciences : CMLS · 2026Review
- VAMP7-dependent late endosomal secretion of ER and mitochondrial proteins impacts the tumor microenvironment and macrophage engagement.Nature communications · 2026Article
- Beyond the Secretory Pathway: New Insights Into Protein Release.Traffic (Copenhagen, Denmark) · 2025Review
- Cellular homeostatic responses to lysosomal damage.Trends in cell biology · 2025Review
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- Article
- Lysosomes' fallback strategies: more than just survival or death.Frontiers in cell and developmental biology · 2025Review
- Should it stay or should it go: gap junction protein GJA1/Cx43 conveys damaged lysosomes to the cell periphery to potentiate exocytosis.Autophagy · 2024Article
- Cx43-mediated hyphal folding counteracts phagosome integrity loss during fungal infection.Microbiology spectrum · 2023Article
Corrections and comments
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Authors and funding
19 authors.
Funding
Abstract
A robust and efficient cellular response to lysosomal membrane damage prevents leakage from the lysosome lumen into the cytoplasm. This response is understood to happen through either lysosomal membrane repair or lysophagy. Here we report exocytosis as a third response mechanism to lysosomal damage, which is further potentiated when membrane repair or lysosomal degradation mechanisms are impaired. We show that Connexin43 (Cx43), a protein canonically associated with gap junctions, is recruited from the plasma membrane to damaged lysosomes, promoting their secretion and accelerating cell recovery. The effects of Cx43 on lysosome exocytosis are mediated by a reorganization of the actin cytoskeleton that increases plasma membrane fluidity and decreases cell stiffness. Furthermore, we demonstrate that Cx43 interacts with the actin nucleator Arp2, the activity of which was shown to be necessary for Cx43-mediated actin rearrangement and lysosomal exocytosis following damage. These results define a novel mechanism of lysosomal quality control whereby Cx43-mediated actin remodelling potentiates the secretion of damaged lysosomes.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.