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Fig. 5 | Stem Cell Research & Therapy

Fig. 5

From: Extracellular vesicles derived from human umbilical cord mesenchymal stem cells alleviate osteoarthritis of the knee in mice model by interacting with METTL3 to reduce m6A of NLRP3 in macrophage

Fig. 5

miR-1208 is the key miRNA bind to METTL3 in EVs to exert anti-inflammatory effects. A. Western blot analysis of Ago-2 expression in hucMSCs lysates. B. Western blot analysis of IL-1β and cleaved caspase-1 levels in culture SN and pro-IL-1β, pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. C. Heat map of miRNA levels in hucMSCs-EVs (n = 3, Student’s t test). D. Four most significantly upregulated miRNAs in hucMSCs-EVs. E. The target sequence of miR-1208 estimated within 3′-UTR of METTL3. F. Western blot analysis of IL-1β and cleaved caspase-1 levels in culture SN and pro-IL-1β, pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. G. Luciferase reporter assay showing that METTL3 is the target gene for miR-1208 (n = 3, Student’s t test)

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Stem Cell Research & Therapy

ISSN: 1757-6512