Journal: Journal of Nanobiotechnology
Article Title: Apoptotic vesicles rescue impaired mesenchymal stem cells and their therapeutic capacity for osteoporosis by restoring miR-145a-5p deficiency
doi: 10.1186/s12951-024-02829-2
Figure Lengend Snippet: miR-145a-5p contributed to the WT apoVs-mediated rescue of impaired OVX MSCs. ( A ) Real-time PCR analysis indicated that miR-145a-5p expression was decreased in OVX MSCs as compared with WT MSCs, which was increased when treated with WT apoVs in vitro. ( B ) Real-time PCR analysis indicated that miR-145a-5p expression was decreased in OVX apoVs compared to WT apoVs. ( C ) Real-time PCR analysis showed that pri-miR-145a-5p expression was downregulated in OVX MSCs compared to WT MSCs, which was unchanged after apoVs stimulation. ( D ) Real-time PCR analysis indicated that actinomycin D treatment failed to affect the miR-145a-5p expression in WT apoVs treated OVX MSCs. ( E , F ) Western blot assay indicated that miR-145a-5p mimics downregulated TGF-β1/Smad2/3 signaling pathway and upregulated Wnt/β-catenin signaling pathway in OVX MSCs, while miR-145a-5p inhibitor displayed the opposite effect in WT MSCs. ( G , H ) Alizarin red staining showed that miR-145a-5p mimics promoted the mineralized nodule formation in OVX MSCs, while miR-145a-5p inhibitor displayed the opposite effect in WT MSCs. ( I , J ) Western blot assay indicated that miR-145a-5p mimics promoted the expression of osteogenic differentiation-related protein Runx2 and ALP in OVX MSCs, while miR-145a-5p inhibitor displayed the opposite effect in WT MSCs. ( K , L ) Flow cytometric analysis indicated that miR-145a-5p mimics upregulated the immunoregulatory capacity of OVX MSCs, while miR-145a-5p inhibitor displayed the opposite effect in WT MSCs. n = 3. * p < 0.05, ** p < 0.01, *** p < 0.001. Data are presented as mean ± SD
Article Snippet: Anti-mouse cleaved caspase-3 (#9661), Anti-mouse Runx2 (#8486), Anti-mouse phospho-p44/42 MAPK (Erk1/2) (#4370), Anti-mouse p44/42 MAPK (Erk1/2) (#9102), Anti-mouse PI3 Kinase p110 (#4249), Anti-mouse PI3 Kinase p85 (#4292), Anti-mouse NF-κB p65 (#8242), Anti-mouse phospho-NF-κB p65 (#3033) antibodies were purchased from Cell Signaling Technology (Danvers, MA, USA) and diluted to 1:1000 before using.
Techniques: Real-time Polymerase Chain Reaction, Expressing, In Vitro, Western Blot, Staining