ArticleThe Kaohsiung journal of medical sciences2023
Exosomal miR-181a-5p derived from SAOS-2 cells promotes macrophages M2 polarization by targeting RORA.
Article in The Kaohsiung journal of medical sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 8 citations in OpenAlex.
- Deciphering the malignant synergy: metabolic reprogramming, epigenetic circuitry, and niche remodeling in osteosarcoma-macrophage crosstalk.Frontiers in immunology · 2026Review
- Circadian genes and non-coding RNAs: interactions and implications in cancer.Animal cells and systems · 2025Review
- Tackling exosome and nuclear receptor interaction: an emerging paradigm in the treatment of chronic diseases.Military Medical Research · 2024Review
- The molecular conversations of sarcomas: exosomal non-coding RNAs in tumor's biology and their translational prospects.Molecular cancer · 2024Review
- Tumour-derived exosome SNHG17 induced by oestrogen contributes to ovarian cancer progression via the CCL13-CCR2-M2 macrophage axis.Journal of cellular and molecular medicine · 2024Article
- Connection between Radiation-Regulating Functions of Natural Products and miRNAs Targeting Radiomodulation and Exosome Biogenesis.International journal of molecular sciences · 2023Review
- Exosomal miR-181a-5p derived from SAOS-2 cells promotes macrophages M2 polarization by targeting RORA.The Kaohsiung journal of medical sciences · 2023Article
- Gene expression changes in therapeutic ultrasound-treated venous leg ulcers.Frontiers in medicine · 2023Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
Although the interaction between tumor cells and tumor-associated macrophages (TAMs) has been widely studied; however, the mechanism of osteosarcoma cells in regulating the polarization of TAMs remains unclear. Exosomes from SAOS-2 cells were isolated and validated by electron microscopy and Western blot. Transfection of indicated plasmids was applied to modify the expressions of miR-181a-5p and RAR-related orphan receptor alpha (RORA). Flow cytometric analysis was carried out to analyze M1/M2 macrophage polarization. Quantitative real-time PCR was performed to determine the levels of miR-181a-5p and RORA. Protein levels of CD63, CD81, RORA, CD163, CD206, IL-10, CXCL10, and IL-1β were evaluated by Western blot. The direct interaction of miR-181a-5p and RORA was validated by dual-luciferase activity assay. The expression of miR-181a-5p was upregulated in osteosarcoma tissues and presented in SAOS-2-derived exosomes. SAOS-2-derived exosomes promoted the polarization of M2 macrophages by transferring miR-181a-5p. In addition, RORA was downregulated in osteosarcoma tissues and showed a negative correlation with miR-181a-5p. RORA was found to be the downstream target of miR-181a-5p in SAOS-2 cells. Inhibition of RORA reversed the effects of miR-181a-5p knockdown on the polarization of M2 macrophages. The results showed that exosomal miR-181a-5p derived from osteosarcoma cells induced polarization of M2 macrophages via targeting RORA.
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