Oncotarget

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The prognostic role of microRNA in epithelial ovarian cancer: a systematic review of literature with an overall survival meta-analysis

Patricia Ferreira _, Rosimeire Aparecida Roela, Rossana Veronica Mendoza Lopez and Maria Del Pilar Estevez-Diz

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Oncotarget. 2020; 11:1085-1095. https://doi.org/10.18632/oncotarget.27246

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Abstract

Patricia Ferreira1, Rosimeire Aparecida Roela1, Rossana Veronica Mendoza Lopez1 and Maria Del Pilar Estevez-Diz1

1 Instituto do Cancer do Estado de Sao Paulo, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil

Correspondence to:

Patricia Ferreira,email: Paty_medd@hotmail.com

Keywords: ovarian cancer; microRNA; miRNA; prognostic factors; overall survival

Received: June 24, 2019     Accepted: September 16, 2019     Published: March 24, 2020

ABSTRACT

Objective: To accomplish a systematic review of literature with overall survival meta-analysis about the role of microRNA in epithelial ovarian cancer as prognostic and predictive factor to chemotherapy response.

Methods: A search was conducted in the PubMed database, using the keywords “microRNA” and “ovarian cancer” or “miRNA” and “ovarian cancer”. Original articles published before 02/02/2019 that had as main subject microRNA (miRNA) and ovarian cancer were included. We considered for inclusion only studies that associated microRNA to chemotherapy-related diagnosis, prognosis, or response in ovarian cancer.

Results: The literature search returned 1,482 articles, 497 of which fulfilled inclusion criteria, yielding 350 miRNAs. The status of each miRNA was assessed in serum and tissue of ovarian cancer, benign tumors, and healthy tissue. The status of up-/downregulation of miRNAs was related to prognostic features (overall survival and disease-free survival) and response predictive features such as platinum and paclitaxel sensitivity/resistance. The miRNAs that had been cited three or more times were selected for prognostic and response predictive features analysis. Twelve miRNAs fulfilled all these criteria and were included in the overall survival meta-analysis.

Conclusions: miRNAs affect virtually all mechanisms of carcinogenesis, working as either oncogenes or tumor suppressor genes. In this systematic review we identified miRNAs that may be related to prognosis, diagnosis, and chemotherapy sensitivity. The 12 miRNAs identified here should be included in future studies for validation.


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