SMAD7 and pulmonary fibrosis: Article: Lee C-M, He C-H, Park JW, Lee JH, Kamle S, Ma B, Akosman B, Cotez R, Chen E, Zhou Y, Herzog EL, Ryu C, Peng X, Rosas IO, Poli S, Bostwick CF, Choi AM, Elias JA, Lee CG (2019 May 13) Chitinase 1 regulates pulmonary fibrosis by modulating TGF-β/SMAD7 pathway via TGFBRAP1 and FOXO3.