Abstract
Objectives
Ovarian cancer is one of the most fatal gynecologic malignities. miR-16-5p, miR-17-5p, and miR-638 genes were found to have been associated with ovarian cancer in accordance with the data obtained from the previous microarray research performed by Tuncer et al. (J Ovarian Res 13(1):99, 2020). The expression levels of these miRNAs in the peripheral blood samples of 142 ovarian cancer patients, and 97 healthy controls were investigated for performing the validation, and to identify whether these genes were the possible biomarkers to be used in the early diagnosis of high-risk ovarian cancer patients, and in the prognosis of patients.
Methods
The miRNA expression analysis was performed using the miRNA-specific cDNA synthesis, and real-time PCR methods following the RNA isolation from the peripheral blood lymphocytes.
Results
miR-16-5p, miR-17-5p, and miR-638 miRNA gene expression levels were found to have twofold higher expression levels in patient groups compared with the gene expression levels in healthy controls, and were statistically significant (p < 0.05). In addition, the comparison of the miRNA expression levels with the clinical data of patients showed that there was a significant difference with smoking history and the increased expression level of miR-17-5 (p: 0.007). There was a significant difference between the increased expression level of miR-638 with the locally advanced stage, and abdominal/pelvic metastatic patients (p: 0.03).
Conclusions
The obtained data suggest that miR-16-5p, miR-17-5p, and miR-638 molecules might be the noninvasive biomarkers in identifying the ovarian cancer. However, the investigation and monitoring of the changeability of these biomarkers in benign ovarian diseases, and during the treatment must be performed in future studies for identifying the accurate diagnostic, and prognostic features of miRNAs.
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Availability of the data and materials
The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request. All data generated or analysed during this study are included in this published article.
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Funding
The present work was supported by the Research Fund of Istanbul University. Project No: TDK-2018-29694.
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ASM project development, data collection, manuscript writing. TSB study concept, and design, data collection. AOD, SEO, KES, SP data collection. OS statistical analysis. YH project development, data collection, check of manuscript. All authors read and approved the final manuscript.
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There are no conflicts of interest to declare (Mukaddes Avsar Saral, Seref Bugra Tuncer, Demet Akdeniz Odemis, Ozge Sukruoglu Erdogan, Seda Kilic Erciyas, Pınar Saip, Sevda Ozel, Hulya Yazici).
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All the performed human participant involving procedures were in accordance with the ethical standards of the institutional and/or national research committee, and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the Ethics Committee of Istanbul Faculty of Medicine in Istanbul University (Ethics Approval No: 2018/190).
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Saral, M.A., Tuncer, S.B., Odemis, D.A. et al. New biomarkers in peripheral blood of patients with ovarian cancer: high expression levels of miR-16-5p, miR-17-5p, and miR-638. Arch Gynecol Obstet 305, 193–201 (2022). https://doi.org/10.1007/s00404-021-06138-z
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DOI: https://doi.org/10.1007/s00404-021-06138-z