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Esophageal cancer is one of the most common digestive malignant diseases worldwide and emerging evidences revealed that microRNAs (miRNAs) were implicated in the development and progression of esophageal cancer. However, the expression level and biological function of microRNA-873(miR-873) in esophageal cancer are still largely elusive. In this study, we investigated the expression and biological roles of miR-873 in human esophageal cancer. Our results revealed that miR-873 was significantly underexpressed in esophageal cancer tissues and cell lines when compared with the para-tumor tissue and primary human esophageal epithelial cells. Furthermore, overexpression of miR-873 could remarkably inhibit esophageal cancer cell growth, migration and invasion. Moreover, we validated differentiated embryonic chondrocyte expressed gene 2 (DEC2) as a direct target of miR-873 which could reverse the repressive effects of miR-873 on esophageal cancer cell. In summary, our investigation demonstrated that miR-873 was underexpressed in esophageal cancer and might act as a tumor suppressor gene by directly targeting DEC2.
This article was published in the following journal.
Name: Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
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Esophageal Carcinoma (EC) is the eighth most common cancer worldwide. Numerous studies have highlighted a vital role of microRNAs (miRNAs) in the development of EC. However, the mechanism of microRNA ...
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A tumor suppressor gene (GENES, TUMOR SUPPRESSOR) located on human chromosome 17 at locus 17q21. Mutations of this gene are associated with the formation of familial breast and ovarian cancer. It encodes a large, nuclear protein that is a component of DNA repair pathways.
A tumor suppressor gene (GENES, TUMOR SUPPRESSOR) located on human chromosome 13 at locus 13q12.3. Mutations in this gene predispose humans to breast and ovarian cancer. It encodes a large, nuclear protein that is an essential component of DNA repair pathways, suppressing the formation of gross chromosomal rearrangements. (from Genes Dev 2000;14(11):1400-6)
A gene product of the p16 tumor suppressor gene (GENES, P16). It antagonizes the function of MDM2 PROTEIN (which regulates P53 TUMOR SUPPRESSOR PROTEIN by targeting it for degradation). p14ARF is produced from the beta mRNA transcript of the p16 gene. The other gene product, produced from the alternatively spliced alpha transcript, is CYCLIN-DEPENDENT KINASE INHIBITOR P16. Both p16 gene products have tumor suppressor functions.
A homolog of p53 TUMOR SUPPRESSOR PROTEIN that encodes full-length trans-activating and N-terminally-truncated (DeltaN) isoforms. Detection of splice variants and isoforms in the nervous system (human TELENCEPHALON, CHOROID PLEXUS; CEREBROSPINAL FLUID), embryonic tissue, human BREAST CANCER; OVARIAN CANCER, suggest roles in cellular differentiation.
Nuclear phosphoprotein encoded by the p53 gene (GENES, P53) whose normal function is to control CELL PROLIFERATION and APOPTOSIS. A mutant or absent p53 protein has been found in LEUKEMIA; OSTEOSARCOMA; LUNG CANCER; and COLORECTAL CANCER.
A microRNA (abbreviated miRNA) is a small non-coding RNA molecule (containing about 22 nucleotides) found in plants, animals, and some viruses. Key findings: miRNA is involved in the normal functioning of eukaryotic cells, so has dysregulation...
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Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...