ArticleInternational journal of molecular sciences2023
SDF-1α Promotes Chondrocyte Autophagy through CXCR4/mTOR Signaling Axis.
Article in International journal of molecular sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 16 citations in OpenAlex.
- 3D-printed titanium scaffolds coated with a multifunctional photothermal-responsive hydrogel promote osteoporotic bone defect repair.Materials today. Bio · 2026Article
- The SDF-1α/CXCR4 axis regulates chondrocyte mitochondrial dynamics via the ERK/AMPKα pathway.Cell communication and signaling : CCS · 2026Article
- Advances in Injectable miRNA-Loaded Nanocomposite Hydrogel Systems for Cartilage Repair in KOA.International journal of nanomedicine · 2026Review
- A Molecular Chemical Perspective: Mitochondrial Dynamics Is Not a Bystander of Cartilage Diseases.ACS pharmacology & translational science · 2025Review
- Intramyocardial injection of pre-cultured endothelial progenitor cells and mesenchymal stem cells inside alginate/gelatin microspheres induced angiogenesis in infarcted rabbits.Cell communication and signaling : CCS · 2025Article
- Shed Syndecan-4 and Its Possible Roles in Osteoarthritis.Biomedicines · 2025Review
- Mechanosensitive lncRNA H19 promotes chondrocyte autophagy, but not pyroptosis, by targeting miR-148a in post-traumatic osteoarthritis.Non-coding RNA research · 2025Article
- Programmed Cell Death of Chondrocytes, Synovial Cells, Osteoclasts, and Subchondral Bone Cells in Osteoarthritis.Journal of inflammation research · 2025Review
- Identification and validation of autophagy-related genes and exploration of their relationship with disease severity in chronic rhinosinusitis with nasal polyps.Asia Pacific allergy · 2024Article
- Interplay of Glucose Metabolism and Hippo Pathway in Chondrocytes: Pathophysiology and Therapeutic Targets.Bioengineering (Basel, Switzerland) · 2024Review
- TGF-β3 mediates mitochondrial dynamics through the p-Smad3/AMPK pathway.Cell proliferation · 2024Article
- Pathological progression of osteoarthritis: a perspective on subchondral bone.Frontiers of medicine · 2024Review
- Article
- [Stromal Cell-Derived Factor 1α Inhibits Chondrocyte Apoptosis and Promotes Autophagy Through the Akt Signaling Pathway].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2024Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
SDF-1α, the most common isoform of stromal cell-derived factor 1, has shown vital effects in regulating chondrocyte proliferation, maturation, and chondrogenesis. Autophagy is a highly conserved biological process to help chondrocytes survive in harsh environments. However, the effect of SDF-1α on chondrocyte autophagy is still unknown. This study aims to investigate the effect of SDF-1α on chondrocyte autophagy and the underlying biomechanism. Transmission electron microscope assays and mRFP-GFP-LC3 adenovirus double label transfection assays were performed to detect the autophagic flux of chondrocytes. Western blots and immunofluorescence staining assays were used to detect the expression of autophagy-related proteins in chondrocytes. RNA sequencing and qPCR were conducted to assess changes in autophagy-related mRNA expression. SDF-1α upregulated the number of autophagosomes and autolysosomes in chondrocytes. It also increased the expression of autophagy-related proteins including ULK-1, Beclin-1 and LC3B, and decreased the expression of p62, an autophagy substrate protein. SDF-1α-mediated autophagy of chondrocytes required the participation of receptor CXCR4. Moreover, SDF-1α-enhanced autophagy of chondrocytes was through the inhibition of phosphorylation of mTOR signaling on the upstream of autophagy. Knockdown by siRNA and inhibition by signaling inhibitor further confirmed the importance of the CXCR4/mTOR signaling axis in SDF-1α-induced autophagy of chondrocytes. For the first time, this study elucidated that SDF-1α promotes chondrocyte autophagy through the CXCR4/mTOR signaling axis.
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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.