USF2 and neoplasm: Importantly, in tumor samples, the expression levels of LGALS3BP showed a direct correlation with those of TGF-β1 (R = 0.34, p < 0.001), USF1 (R = 0.30, p < 0.001), and USF2 (R = 0.37, p < 0.001) (Fig. 5E).