TGFB1 and cancer: The terms \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$ \left(\frac{1+{e}_1R}{1+{d}_1{(antiCD25)}^2{R}^3}\right) $$\end{document}1+e1R1+d1antiCD252R3 and (1 + f1S) in the denominator of the third term describe the inhibitory effects of Tregs and TGF-β on CTL-mediated cancer cell killing.