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Evaluation of miR-330-3p and BMI1 Expression in Colorectal Cancer Patients, Healthy Adjacent Tissues, and Polypoid Adenomatous Lesions
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Parviz Basiri1    , Saeid Afshar2 , Razieh Amini2 , Ali Reza Soltanian3 , Massoud Saidijam2 , Ali Mahdavinezhad 4 |
1- School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
2- Research Center for Molecular Medicine, Department of Molecular Medicine and Genetics, Medical School, Hamadan University of Medical Sciences, Hamadan, Iran.
3- Modeling of Non-communicable Diseases Research Center, School of Public Health Hamadan University of Medical Sciences, Hamadan, Iran.
4- Research Center for Molecular Medicine, Department of Molecular Medicine and Genetics, Medical School, Hamadan University of Medical Sciences, Hamadan, Iran. , alimahdavin@gmail.com |
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Abstract: (1216 Views) |
| MicroRNAs (miRNAs) have emerged as essential gene expression regulators associated with human diseases such as colorectal cancer (CRC). The purpose of this study was to evaluate the expression of miR-330-3p and its target gene BMI1 in tissue samples of patients with CRC, polyp, and healthy adjacent tissue samples and their association with clinicopathological and demographic factors such as age, tumor stage, grade, and lymph node invasion of the tumor. Following the extraction of total RNA from approximately 50 mg of colon and rectum tissue of 82 patients with CRC, 13 polypoid lesions, and 26 marginal healthy tissues using RiboEx reagent, cDNA synthesis was performed, and then quantitative real-time PCR was used to detect the expression levels of miR-330-3p and BMI1. Alterations in the gene expression were assessed using the 2(-∆∆ CT) method. The expression of miR-330-3p in all of the CRC samples was significantly lower than in adjacent healthy tissues and polyp (P<0.001). BMI1 was up-regulated in 97.9% of CRC tissue compared to healthy adjacent tissues and polyps (P<0.001). A negative reverse correlation between the miR-330-3p and BMI1 gene was observed in the CRC samples (r= -0.882, P<0.001). Down-regulation of miR-330-3p and BMI1 overexpression strongly correlates with higher tumor stage and lymph node invasion. The AUC for miR-330-3p and BMI1expression was 0.982 (sensitivity, 98.5%; specificity, 78.8%), and 0.971 (sensitivity, 97.6%; specificity, 84.6%) (P<0.001), respectively. Our results indicated that miR-330-3p and BMI1 expression probably could be considered potential diagnostic or prognostic biomarkers for CRC patient. |
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| Keywords: miR-330-3p, human, BMI1, colorectal neoplasms, Adenomatous Polyps, biomarker |
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Full-Text [PDF 388 kb]
(734 Downloads)
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Type of Study: Original Article |
Subject:
Cancer
Received: 2022/09/11 | Accepted: 2023/07/15 | Published: 2023/07/15
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