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The concentration of TGF‐β1 in the supernatant and the expressions of key genes associated with AhR signalling, TGF‐β signalling, self‐renewal and function of HSCs. A, The concentration of total TGF‐β1. B, The concentration of spontaneously activated TGF‐β1. C, mRNA expression of AhR signalling. D, mRNA expression of TGF‐β signalling. E, mRNA expression of key genes involved in the self‐renewal and function of HSCs. n = 3, *P < .05
