Abstract
Colorectal neoplasia differentially expressed (CRNDE), an oncogene, is highly expressed in many tumor cells and affects cellular proliferation, migration, invasion, and apoptosis. Its function and mechanism of action is a research hotspot. In this study, microarray analysis was performed to discover the differentially expressed genes in CRNDE over-expression cells. RT² Profiler PCR Array was used to study the expression of genes related to the toll-like receptor (TLR) pathway. We found that over-expression of CRNDE in astrocytes increased the expression of key factors in the toll-like receptor signaling pathway, especially toll-like receptor-3-mediated MyD88-independent pathway. Furthermore, it up-regulated expression levels of downstream transcription factor such as nuclear factor kappa B and numerous cytokines. In contrast, CRNDE knockdown in glioma U87MG cell line showed an opposite trend in the expression of the above-mentioned genes. We speculated that CRNDE might trigger inflammation to regulate tumorigenesis and tumor development through the toll-like receptor pathway.
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