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Inactivation of the TSPAN12 expression and TGF-β1/SMAD4 pathway in gastric cancer. (a–c) TSPAN12, TGF-β1, and SMAD4 expression was tested in gastric cancer and normal tissues utilizing western blot. (d) Representative images of western blots. (e) Immunohistochemistry results of (a, b) TSPAN12, (c, d) TGF-β1, and (e, f) SMAD4 in gastric cancer and normal tissues. ∗∗∗∗p < 0.0001.
