FAK Inhibition Attenuates Corneal Fibroblast Differentiation In Vitro
| Autor: | Jennifer A Tran, Audrey E. K. Hutcheon, Dimitrios Karamichos, Joseph B. Ciolino, Sriniwas Sriram, Vincent Yeung, James D. Zieske, Xiaoqing Guo |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Stromal cell
focal adhesion kinase (FAK) Biochemistry Microbiology Article Transforming Growth Factor beta1 Extracellular matrix Focal adhesion Fibrosis medicine Humans Myofibroblasts Molecular Biology corneal scarring 3D cell culture biology Chemistry α-smooth muscle actin (αSMA) Cell Differentiation Fibroblasts medicine.disease extracellular matrix (ECM) QR1-502 Cell biology biology.protein sense organs ACTA2 Wound healing Myofibroblast Transforming growth factor |
| Zdroj: | Biomolecules, Vol 11, Iss 1682, p 1682 (2021) Biomolecules Volume 11 Issue 11 |
| Popis: | Corneal fibrosis (or scarring) occurs in response to ocular trauma or infection, and by reducing corneal transparency, it can lead to visual impairment and blindness. Studies highlight important roles for transforming growth factor (TGF)-β1 and -β3 as modulators in corneal wound healing and fibrosis, leading to increased extracellular matrix (ECM) components and expression of α-smooth muscle actin (αSMA), a myofibroblast marker. In this study, human corneal fibroblasts (hCF) were cultured as a monolayer culture (2D) or on poly-transwell membranes to generate corneal stromal constructs (3D) that were treated with TGF-β1, TGF-β3, or TGF-β1 + FAK inhibitor (FAKi). Results show that hCF 3D constructs treated with TGF-β1 or TGF-β3 impart distinct effects on genes involved in wound healing and fibrosis—ITGAV, ITGB1, SRC and ACTA2. Notably, in the 3D construct model, TGF-β1 enhanced αSMA and focal adhesion kinase (FAK) protein expression, whereas TGF-β3 did not. In addition, in both the hCF 2D cell and 3D construct models, we found that TGF-β1 + FAKi attenuated TGF-β1-mediated myofibroblast differentiation, as shown by abrogated αSMA expression. This study concludes that FAK signaling is important for the onset of TGF-β1-mediated myofibroblast differentiation, and FAK inhibition may provide a novel beneficial therapeutic avenue to reduce corneal scarring. |
| Databáze: | OpenAIRE |
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