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Western blotting results of SHH, Gli1 and HIP in the three groups. (A) SHH, Gli1 and HIP protein expression and (B) subsequent quantification. *P<0.05 vs. control; #P<0.05 vs. CS. CS, cigarette smoke; CSC, cigarette smoke + cyclopamine; Gli1, glioma-associated oncogene homolog 1; HIP, hedgehog-interacting protein; SHH, sonic hedgehog.
