@article{1f69618221534d43a35bb9bcd7b225a5,
title = "Genotype tunes pancreatic ductal adenocarcinoma tissue tension to induce matricellular fibrosis and tumor progression",
abstract = "Fibrosis compromises pancreatic ductal carcinoma (PDAC) treatment and contributes to patient mortality, yet antistromal therapies are controversial. We found that human PDACs with impaired epithelial transforming growth factor-β (TGF-β) signaling have high epithelial STAT3 activity and develop stiff, matricellular-enriched fibrosis associated with high epithelial tension and shorter patient survival. In several KRAS-driven mouse models, both the loss of TGF-β signaling and elevated β1-integrin mechanosignaling engaged a positive feedback loop whereby STAT3 signaling promotes tumor progression by increasing matricellular fibrosis and tissue tension. In contrast, epithelial STAT3 ablation attenuated tumor progression by reducing the stromal stiffening and epithelial contractility induced by loss of TGF-β signaling. In PDAC patient biopsies, higher matricellular protein and activated STAT3 were associated with SMAD4 mutation and shorter survival. The findings implicate epithelial tension and matricellular fibrosis in the aggressiveness of SMAD4 mutant pancreatic tumors and highlight STAT3 and mechanics as key drivers of this phenotype.",
author = "Hanane Laklai and Miroshnikova, {Yekaterina A.} and Pickup, {Michael W.} and Collisson, {Eric A.} and Kim, {Grace E.} and Barrett, {Alex S.} and Hill, {Ryan C.} and Lakins, {Johnathon N.} and Schlaepfer, {David D.} and Mouw, {Janna K.} and LeBleu, {Valerie S.} and Nilotpal Roy and Novitskiy, {Sergey V.} and Johansen, {Julia S.} and Valeria Poli and Raghu Kalluri and Iacobuzio-Donahue, {Christine A.} and Wood, {Laura D.} and Matthias Hebrok and Kirk Hansen and Moses, {Harold L.} and Weaver, {Valerie M.}",
note = "Funding Information: We thank M. Dembo for the LIBTRC 2.0 traction force software. We thank M. Tempero for helpful discussions, and L. Korets and N. Korets for animal handling and tissue processing. This work was supported by US National Institutes of Health NCI grants U01 CA151925-01 (V.M.W. and H.L.M. and R.K.), R33 CA183685-01 (V.M.W. and K.H.), R01 CA138818-01A1 (V.M.W.), U54CA143836-01 (V.M.W.), CA102310 (D.D.S.), R01CA178015-02 (E.A.C.), R01 CA172045 (R.N. and M.H.), T32CA108462 (M.W.P.), F31CA180422 (Y.A.M.), the Pancreatic Cancer Action Network-AACR Innovative Grant 30-60-25-WEAV (V.M.W.), NSF GRFP 1144247 (Y.A.M.) and NIH TL1 TR001081 (A.S.B.). Publisher Copyright: {\textcopyright} 2016, Nature America, Inc. All rights reserved.",
year = "2016",
month = may,
day = "1",
doi = "10.1038/nm.4082",
language = "English (US)",
volume = "22",
pages = "497--505",
journal = "Nature Medicine",
issn = "1078-8956",
publisher = "Nature Publishing Group",
number = "5",
}