RT Journal Article T1 MMP1 drives tumor progression in large cell carcinoma of the lung through fibroblast senescence. A1 Gabasa, Marta A1 Radisky, Evette S A1 Ikemori, Rafael A1 Bertolini, Giulia A1 Arshakyan, Marselina A1 Hockla, Alexandra A1 Duch, Paula A1 Rondinone, Ornella A1 Llorente, Alejandro A1 Maqueda, Maria A1 Davalos, Albert A1 Gavilán, Elena A1 Perera, Alexandre A1 Ramírez, Josep A1 Gascón, Pere A1 Reguart, Noemí A1 Roz, Luca A1 Radisky, Derek C A1 Alcaraz, Jordi K1 Cancer-associated fibroblasts K1 MMP1 K1 TGF-β K1 lung cancer K1 senescence AB Large cell carcinoma (LCC) is a rare and aggressive lung cancer subtype with poor prognosis and no targeted therapies. Tumor-associated fibroblasts (TAFs) derived from LCC tumors exhibit premature senescence, and coculture of pulmonary fibroblasts with LCC cell lines selectively induces fibroblast senescence, which in turn drives LCC cell growth and invasion. Here we identify MMP1 as overexpressed specifically in LCC cell lines, and we show that expression of MMP1 by LCC cells is necessary for induction of fibroblast senescence and consequent tumor promotion in both cell culture and mouse models. We also show that MMP1, in combination with TGF-β1, is sufficient to induce fibroblast senescence and consequent LCC promotion. Furthermore, we implicate PAR-1 and oxidative stress in MMP1/TGF-β1-induced TAF senescence. Our results establish an entirely new role for MMP1 in cancer, and support a novel therapeutic strategy in LCC based on targeting senescent TAFs. YR 2021 FD 2021-03-06 LK http://hdl.handle.net/10668/17329 UL http://hdl.handle.net/10668/17329 LA en DS RISalud RD Apr 19, 2025