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Cited by 810

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Feedback amplification of fibrosis through matrix stiffening and COX-2 suppression

Open access
Liu, Fei, Mih, Justin D., Shea, Barry S., Kho, Alvin T., Sharif, Asma S., Tager, Andrew M., Tschumperlin, Daniel J.·2010·Journal of Cell Biology

Abstract

Tissue stiffening is a hallmark of fibrotic disorders but has traditionally been regarded as an outcome of fibrosis, not a contributing factor to pathogenesis. In this study, we show that fibrosis induced by bleomycin injury in the murine lung locally increases median tissue stiffness sixfold relative to normal lung parenchyma. Across this pathophysiological stiffness range, cultured lung fibroblasts transition from a surprisingly quiescent state to progressive increases in proliferation and matrix synthesis, accompanied by coordinated decreases in matrix proteolytic gene expression. Increasing matrix stiffness strongly suppresses fibroblast expression of COX-2 (cyclooxygenase-2) and synthesis of prostaglandin E2 (PGE2), an autocrine inhibitor of fibrogenesis. Exogenous PGE2 or an agonist of the prostanoid EP2 receptor completely counteracts the proliferative and matrix synthetic effects caused by increased stiffness. Together, these results demonstrate a dominant role for normal tissue compliance, acting in part through autocrine PGE2, in maintaining fibroblast quiescence and reveal a feedback relationship between matrix stiffening, COX-2 suppression, and fibroblast activation that promotes and amplifies progressive fibrosis.

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Metadata

Authors
Liu, F., Mih, J. D., Shea, B. S., Kho, A. T., Sharif, A. S., Tager, A. M., & Tschumperlin, D. J.
Venue
Journal of Cell Biology
Published
2010-08-23
Volume
190
Issue
4
Pages
693-706
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2159731793
Cited by
810
References
12
FWCI
25.09
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Feedback amplification of fibrosis through matrix stiffening and COX-2 suppression. https://app.cochat.ai/papers/10.1083/jcb.201004082
The paper
Liu, F., Mih, J. D., Shea, B. S., Kho, A. T., Sharif, A. S., Tager, A. M., & Tschumperlin, D. J. (2010). Feedback amplification of fibrosis through matrix stiffening and COX-2 suppression. Journal of Cell Biology. https://doi.org/10.1083/jcb.201004082

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.