Downregulation of MicroRNA-495 Alleviates IL-1β Responses among Chondrocytes by Preventing SOX9 Reduction
| العنوان: | Downregulation of MicroRNA-495 Alleviates IL-1β Responses among Chondrocytes by Preventing SOX9 Reduction |
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| المؤلفون: | Jin Woo Lee, Sung-Hwan Kim, Kyoung-Mi Lee, Soyeong Joung, Sehee Cho, Kwang Hwan Park, Dong Suk Yoon, Eun Ae Ko |
| المصدر: | Yonsei Medical Journal |
| بيانات النشر: | Yonsei University College of Medicine, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Interleukin-1beta, Down-Regulation, Inflammation, SOX9, Chondrocyte, Chondrocytes, Downregulation and upregulation, medicine, Humans, Cells, Cultured, Gene knockdown, Chemistry, Mesenchymal stem cell, SOX9 Transcription Factor, General Medicine, Cell Biology, Chondrogenesis, Cell biology, Blot, osteoarthritis, MicroRNAs, medicine.anatomical_structure, inflammation, miRNA-495, Original Article, medicine.symptom |
| الوصف: | Purpose Our previous work demonstrated that miRNA-495 targets SOX9 to inhibit chondrogenesis of mesenchymal stem cells. In this study, we aimed to investigate whether miRNA-495-mediated SOX9 regulation could be a novel therapeutic target for osteoarthritis (OA) using an in vitro cell culture model. Materials and methods An in vitro model mimicking the OA environment was established using TC28a2 normal human chondrocyte cells. Interleukin-1β (IL-1β, 10 ng/mL) was utilized to induce inflammation-related changes in TC28a2 cells. Safranin O staining and glycosaminoglycan assay were used to detect changes in proteoglycans among TC28a2 cells. Expression levels of COX-2, ADAMTS5, MMP13, SOX9, CCL4, and COL2A1 were examined by qRT-PCR and/or Western blotting. Immunohistochemistry was performed to detect SOX9 and CCL4 proteins in human cartilage tissues obtained from patients with OA. Results miRNA-495 was upregulated in IL-1β-treated TC28a2 cells and chondrocytes from damaged cartilage tissues of patients with OA. Anti-miR-495 abolished the effect of IL-1β in TC28a2 cells and rescued the protein levels of SOX9 and COL2A1, which were reduced by IL-1β. SOX9 was downregulated in the damaged cartilage tissues of patients with OA, and knockdown of SOX9 abolished the effect of anti-miR-495 on IL-1β-treated TC28a2 cells. Conclusion We demonstrated that inhibition of miRNA-495 alleviates IL-1β-induced inflammatory responses in chondrocytes by rescuing SOX9 expression. Accordingly, miRNA-495 could be a potential novel target for OA therapy, and the application of anti-miR-495 to chondrocytes could be a therapeutic strategy for treating OA. |
| اللغة: | English |
| تدمد: | 1976-2437 0513-5796 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6944927507e2f805f8543aa0f9f3ea2 http://europepmc.org/articles/PMC8236342 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c6944927507e2f805f8543aa0f9f3ea2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19762437 05135796 |
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