ArticleBone & joint research2022
CircSCAPER contributes to IL-1β-induced osteoarthritis in vitro via miR-140-3p/EZH2 axis.
Article in Bone & joint research, 2022. 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, 25 citations in OpenAlex.
- Circular RNAs orchestrate molecular networks in osteoarthritis: From miRNA sponging to epigenetic and exosome-mediated regulation.Molecular biology reports · 2026Review
- Review
- SIRT6 inhibits endoplasmic reticulum stress-mediated ferroptosis by activating Nrf2/HO-1 signaling to alleviate osteoarthritis.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025Article
- Roles of exosomes in immune regulation of osteoarthritis and their applications in inflammation repair.Frontiers in immunology · 2025Review
- CDK5 Upregulated by ELF3 Transcription Promotes IL-1β-induced Inflammation and Extracellular Matrix Degradation in Human Chondrocytes.Cell biochemistry and biophysics · 2024Article
- Hsa_circ_0007292 promotes chondrocyte injury in osteoarthritis via targeting the miR-1179/HMGB1 axis.Journal of orthopaedic surgery and research · 2023Article
- The Role of Genetics and Epigenetic Regulation in the Pathogenesis of Osteoarthritis.International journal of molecular sciences · 2023Review
- Role of circular RNAs in osteoarthritis: update on pathogenesis and therapeutics.Molecular genetics and genomics : MGG · 2023Review
- Recent Therapeutic Strategies for Excessive Chondrocyte Death in Osteoarthritis: A Review.Orthopaedic surgery · 2023Review
- CircRNAs in osteoarthritis: research status and prospect.Frontiers in genetics · 2023Review
- Challenges and promise of targeting miRNA in rheumatic diseases: a computational approach to identify miRNA association with cell types, cytokines, and disease mechanisms.Frontiers in immunology · 2023Review
- Cartilage Homeostasis and Osteoarthritis.International journal of molecular sciences · 2022Review
- Identification and comprehensive analysis of circRNA-miRNA-mRNA regulatory networks in osteoarthritis.Frontiers in immunology · 2022Article
- Circular RNA MELK Promotes Chondrocyte Apoptosis and Inhibits Autophagy in Osteoarthritis by Regulating MYD88/NF-Contrast media & molecular imaging · 2022Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimsCircular RNA (circRNA) S-phase cyclin A-associated protein in the endoplasmic reticulum (ER) (circSCAPER, ID: hsa_circ_0104595) has been found to be highly expressed in osteoarthritis (OA) patients and has been associated with the severity of OA. Hence, the role and mechanisms underlying circSCAPER in OA were investigated in this study.
methodsIn vitro cultured human normal chondrocyte C28/I2 was exposed to interleukin (IL)-1β to mimic the microenvironment of OA. The expression of circSCAPER, microRNA (miR)-140-3p, and enhancer of zeste homolog 2 (EZH2) was detected using quantitative real-time polymerase chain reaction and Western blot assays. The extracellular matrix (ECM) degradation, proliferation, and apoptosis of chondrocytes were determined using Western blot, cell counting kit-8, and flow cytometry assays. Targeted relationships were predicted by bioinformatic analysis and verified using dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. The levels of phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) pathway-related protein were detected using Western blot assays.
resultsCircSCAPER was highly expressed in OA cartilage tissues and IL-1β-induced chondrocytes. Knockdown of circSCAPER reduced IL-1β-evoked ECM degradation, proliferation arrest, and apoptosis enhancement in chondrocytes. Mechanistically, circSCAPER directly bound to miR-140-3p, and miR-140-3p inhibition reversed the effects of circSCAPER knockdown on IL-1β-induced chondrocytes. miR-140-3p was verified to target EZH2, and overexpression of miR-140-3p protected chondrocytes against IL-1β-induced dysfunction via targeting EZH2. Additionally, we confirmed that circSCAPER could regulate EZH2 through sponging miR-140-3p, and the circSCAPER/miR-140-3p/EZH2 axis could activate the PI3K/AKT pathway.
conclusionCircSCAPER promoted IL-1β-evoked ECM degradation, proliferation arrest, and apoptosis enhancement in chondrocytes via regulating miR-140-3p/EZH2 axis, which gained a new insight into the pathogenesis of OA. Cite this article:
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