Abstract
Cervical squamous carcinoma is a highly invasive tumour that has a great capacity to metastasise. Extracellular matrix metalloproteinase inducer (EMMPRIN or CD147), a member of the immunoglobulin superfamily, is a widely distributed cell surface glycoprotein. It is highly expressed on malignant tumour cell surfaces, including human cervical squamous carcinoma. It also plays a critical role in the invasive and metastatic activity of malignant cells by stimulating the expression of matrix metalloproteinases (MMPs). The anti-invasive effect of small interfering RNA (siRNA) against CD147 on human cervical squamous carcinoma cells and its possible pathways has been investigated. The downregulation of CD147 by transfection with siRNA resulted in MMP-9 expression and decreased activity in the cervical squamous carcinoma cell line SiHa. In vitro analysis showed that the invasive capacity of SiHa cells decreased. Thus CD147 inhibition and subsequent MMP-9 deletion may have anti-tumour effects by inhibiting the invasiveness of human cervical squamous carcinoma cells.
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