ArticleFrontiers in bioscience (Landmark edition)2016
Regulation of dynein-mediated autophagosomes trafficking by ASM in CASMCs.
Article in Frontiers in bioscience (Landmark edition), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 16 citations in OpenAlex.
- Molecular Maestro in the Lung: The Sphingolipid Rheostat.American journal of respiratory cell and molecular biology · 2025Article
- MicroRNA-15a-5p mediates abdominal aortic aneurysm progression and serves as a potential diagnostic and prognostic circulating biomarker.Communications medicine · 2025Article
- Cardiovascular dysfunction and altered lysosomal signaling in a murine model of acid sphingomyelinase deficiency.Journal of molecular medicine (Berlin, Germany) · 2025Article
- Acid Sphingomyelinase Regulates AdipoRon-Induced Differentiation of Arterial Smooth Muscle Cells via TFEB Activation.International journal of molecular sciences · 2025Article
- Puerarin Reversing Autophagy-Lysosomal Dysfunction via Acid Sphingomyelinase Inhibition in Cardiomyocytes.Journal of cellular and molecular medicine · 2025Article
- Coronary Microvascular Dysfunction Is Associated With Augmented Lysosomal Signaling in Hypercholesterolemic Mice.Journal of the American Heart Association · 2024Article
- Coronary Microvascular Dysfunction is Associated with Augmented Lysosomal Signaling in Hypercholesterolemic Mice.bioRxiv : the preprint server for biology · 2024Article
- Molecular Cloning of Dynein Heavy Chain and the Effect of Dynein Inhibition on the Testicular Function ofAnimals : an open access journal from MDPI · 2021Article
- Endothelial acid ceramidase in exosome-mediated release of NLRP3 inflammasome products during hyperglycemia: Evidence from endothelium-specific deletion of Asah1 gene.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2019Article
- Tricyclic antidepressant amitriptyline inhibits autophagic flux and prevents tube formation in vascular endothelial cells.Basic & clinical pharmacology & toxicology · 2019Article
- Contribution of p62/SQSTM1 to PDGF-BB-induced myofibroblast-like phenotypic transition in vascular smooth muscle cells lacking Smpd1 gene.Cell death & disease · 2018Article
- Up-regulation of autophagy-related gene 5 (The Journal of biological chemistry · 2017Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 2 countries.
Funding
Abstract
Acid sphingomyelinase (ASM; gene symbol Smpd1) has been shown to play a crucial role in autophagy maturation by controlling lysosomal fusion with autophagosomes in coronary arterial smooth muscle cells (CASMCs). However, the underlying molecular mechanism by which ASM controls autophagolysosomal fusion remains unknown. In primary cultured CASMCs, lysosomal Ca2+ induced by 7-ketocholesterol (7-Ket, an atherogenic stimulus and autophagy inducer) was markedly attenuated by ASM deficiency or TRPML1 gene silencing suggesting that ASM signaling is required for TRPML1 channel activity and subsequent lysosomal Ca(2+) release. In these CASMCs, ASM deficiency or TRPML1 gene silencing markedly inhibited 7-Ket-induced dynein activation. In addition, 7-Ket-induced autophagosome trafficking, an event associated with lysosomal Ca(2+) release and dynein activity, was significantly inhibited in ASM-deficient (Smpd1(-/-)) CASMCs compared to that in Smpd1(+/+) CASMCs. Finally, overexpression of TRPML1 proteins restored 7-Ket-induced lysosomal Ca(2+) release and autophagosome trafficking in Smpd1-/- CASMCs. Collectively, these results suggest that ASM plays a critical role in regulating lysosomal TRPML1-Ca(2+) signaling and subsequent dynein-mediated autophagosome trafficking, which leads its role in controlling autophagy maturation in CASMCs under atherogenic stimulation.
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