Using a cell culture chip with a deformable substrate driven by a hydraulic force, we investigated the motility of cancer cells affected by myofibroblasts undergoing cyclic tensile strain (CTS). CTS reduced both the expression of α-smooth muscle actin in the myofibroblast and the ability of the myofibroblast to accelerate cancer cell migration. However, with the treatment of a pro-inflammatory factor interleukin-1β on the myofibroblasts, the effects of CTS on the myofibroblast were diminished. This result suggests an antagonism between mechanical and chemical stimulations on mediating cancer metastasis by the stromal myofibroblast.
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