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. 2015 Mar 11;11(3):e1004712. doi: 10.1371/journal.ppat.1004712

Fig 7. Characterization of exosomes secreted by HeLa cells used for small RNA deep sequencing.

Fig 7

(A) Immunoblot analysis of total cellular extract (30, 10 and 1 μg) from exosome-producing cells, and of 1 μg protein from exosome preparations. Hsc70, CD63, Annexin-1, CD9 and β-Actin: exosomal markers; EEA1: early endosome marker; GRP78: ER marker. (B) Visualization of exosomes by electron microscopy. Bar corresponds to 100 nm. (C) Characterization of cellular and exosomal RNA. Electropherograms of total RNA isolated from HeLa cells and from RNAse A-treated exosomes. Upper panel: total RNA contents; lower panel: small RNA contents. M = marker. Shown are representative images for siContr-1-treated samples.