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Fig. 2 | Stem Cell Research & Therapy

Fig. 2

From: Exosomes derived from human CD34+ stem cells transfected with miR-26a prevent glucocorticoid-induced osteonecrosis of the femoral head by promoting angiogenesis and osteogenesis

Fig. 2

Characterization of exosomes and expression of miR-26a in CD34+-Exos. a Morphology of CD34+-Exos and miR-26a-CD34+-Exos observed by transmission electron microscopy (TEM). Scale bar: 50 nm. b Size distribution of CD34+-Exos and miR-26a-CD34+-Exos determined by nanoparticle tracking analysis (NTA). c Expression of the positive specific biomarkers CD9, CD63, CD81, and Alix and the negative specific biomarkers Calnexin were verified by western blotting. d Expression of miR-26a in miR-26a-CD34+-Exos was tested by qPCR. **P < 0.01

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Stem Cell Research & Therapy

ISSN: 1757-6512