Activation of fibroblast collagenase-1 expression by tumor cells of squamous cell carcinomas is mediated by p38 mitogen-activated protein kinase and c-Jun NH2-terminal kinase-2.

Abstract excerpt

Collagenase-1 [matrix metalloproteinase (MMP)-1] is expressed by stromal fibroblasts of various invasive malignant tumors. Here, we have examined the molecular mechanisms of tumor-induced expression of MMP-1 by stromal fibroblasts. Treatment of fibroblasts with conditioned media of tumor cells derived from squamous cell carcinomas (SCCs) of the oral cavity and larynx resulted in activation of fibroblast MMP-1...

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