Abstract
Because altered microRNAs (miRNAs) expression patterns have been observed in a variety of diseased tissues, miRNA expression was compared in human cervical cancer tissues relative to adjacent normal cervical tissues in the present study. Microarray chips with 924 probes were used to detect the expression of miRNAs in cervical cancer tissue and adjacent normal cervical tissue of 13 patients with cervical cancer (11 squamous cervical cancers, one cervical adenocarcinoma, and one cervical sarcoma), all of whom were infected with human papilloma virus (HPV) 16 and/or HPV18. Compared to the expression levels in normal cervical tissues, 18 miRNAs (1.9%) were significantly upregulated (increase of ≥2×), and 19 miRNAs (2.1%) were significantly downregulated (decrease of ≤0.5×) in cervical cancer tissues. miRNA expression was independent of lymph node involvement, vascular invasion, and pathological differentiation. Taken together, cervical cancer tissues have altered expression of miRNAs relative to adjacent normal tissues. Further studies are necessary to determine whether aberrant miRNA expression is related to the pathogenesis of cervical cancer.
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