Collagen gel contraction as a measure of fibroblast function in carpal tunnel syndrome

Tai Hua Yang, Andrew R. Thoreson, Anne Gingery, Kai Nan An, Dirk R. Larson, Chunfeng Zhao, Peter C. Amadio

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14 引文 斯高帕斯(Scopus)


Noninflammatory subsynovial connective tissue (SSCT) fibrosis with nerve compression is a prominent feature of carpal tunnel syndrome (CTS). Studies have shown that SSCT matrix synthesis and material property changes in CTS are associated with increased activity of transforming growth factor (TGF)-β1. The aim of this study were to (1) investigate the ability of SSCT fibroblasts from CTS patients and unaffected individuals to contract a collagen gel ring and (2) determine how the addition of TGF-β1 affects this ability. SSCT fibroblasts from three normal cadavers and three age-matched female patients who had undergone surgery for CTS were used. Results showed patient cell-seeded gels had a significantly higher contraction rate (p < 0.001) than control cells, and fully contracted gel rings possessed a significantly higher tensile strength (p = 0.003) and stiffness (p < 0.001). Furthermore, TGF-β1 significantly intensified contraction rate (p < 0.001), tensile strength (p < 0.001), and stiffness (p < 0.001). In conclusion, SSCT cells from normal donors and CTS patients contract collagen gel rings differently, and this ability is affected by TGF-β1 treatment. This cell-seeded collagen gel model may be useful for developing new methods of stopping or eliminating the effect of TGF-β1 on the SSCT fibroblasts and surrounding matrix, which might aid in the identification of medical treatment for CTS.

頁(從 - 到)574-580
期刊Journal of Biomedical Materials Research - Part A
出版狀態Published - 2015 2月 1

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 生物材料
  • 生物醫學工程
  • 金屬和合金


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