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. 2022 Nov 2;19:18. doi: 10.1186/s12950-022-00315-w

Fig. 4.

Fig. 4

Identification of plasma, sputum and bronchoalveolar lavage fluid (BALF) derived EVs from included COPD patients. A Morphology of extracellular vesicles by electron microscope and transmission electron microscope. Exosome nanoparticle tracking analysis. The mean size of EVs in sputum is 124.4 nm; EVs in BALF is 142.1 nm; EVs in serum is 124.1 nm. Identification of characteristic marker including TSG101 and CD63 by western blot. D Level of IL-6, IL-8, Elane, Antitrypsin and MUC1 in extracellular vesicles derived from sputum, BALF and plasma of COPD patients examined by western blot. Heatmap indicating the results of mRNA expression of significant difference genes between two groups (HBE treated CSE and subsequent EVs isolated from patients with or without HUA). F-G KEGG enrichment (F) and GO enrichment (G) analysis of these significant differentially expressed genes. Abbreviation: BALF, bronchoalveolar lavage fluid; TSG101, tumor susceptibility gene101; CD63, lysosomal membrane-associated glycoprotein 3; MUC1, mucin 1; EVs, extracellular vesicles; COPD, chronic obstruction pulmonary disease