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TGF-β protein expressions in the CCCM and ICCM-derived exosomes shown by Western blot analysis. Western blot image shows expected protein size for latent (44 kDa) and active (12.5 kDa) TGF-β. Bar diagram shows TGF-β protein expressions measured as band density. The error bars represent the SEM of protein expressions of three independent experiments (* p ≤ 0.05).
