Abstract
We recently characterized the molecular linkage that directs both BCL10 overexpression and nuclear translocation in response to inflammation-related NF-κB signaling pathway. Since NF-κB activation has been shown to occur in the pathogenesis of cervical cancer, we sought to investigate whether BCL10 possesses clinical significance in relation to cervical cancer. Four cervical cancer cell lines (C33A, SiHa, HeLa, and CaSki) were used in this study. The DNA-binding activity of NF-κB was determined by the luciferase assay. The expression of BCL10, NF-κB, and cyclin D1 in tumor cells from an array of 182 tissue samples was examined using immunohistochemical staining. We transfected four cervical cancer cell lines with BCL10 small interfering RNA (siRNA), and discovered that the down-regulation of BCL10 inhibited the viability of these cervical cancer cells through G1 arrest. BCL10 siRNA treatment inhibited the expression of p-IKKβ and p-IκB, and also down-regulated both NF-κB activation cyclin D1, its downstream cell cycle protein. Our results reveal that cervical cancer had a higher rate of positive cytoplasmic staining (74.1%, 123/166) than either carcinoma in situ (50.0%, 3/6) or normal cervix (0.0%, 0/10); and that poorly differ...Continue Reading
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