標題: Identifying a miRNA signature for predicting the stage of breast cancer
作者: Sathipati, Srinivasulu Yerukala
Ho, Shinn-Ying
交大名義發表
生物科技學系
生物資訊及系統生物研究所
National Chiao Tung University
Department of Biological Science and Technology
Institude of Bioinformatics and Systems Biology
公開日期: 31-十月-2018
摘要: Breast cancer is a heterogeneous disease and one of the most common cancers among women. Recently, microRNAs (miRNAs) have been used as biomarkers due to their effective role in cancer diagnosis. This study proposes a support vector machine (SVM)-based classifier SVM-BRC to categorize patients with breast cancer into early and advanced stages. SVM-BRC uses an optimal feature selection method, inheritable bi-objective combinatorial genetic algorithm, to identify a miRNA signature which is a small set of informative miRNAs while maximizing prediction accuracy. MiRNA expression profiles of a 386-patient cohort of breast cancer were retrieved from The Cancer Genome Atlas. SVM-BRC identified 34 of 503 miRNAs as a signature and achieved a 10-fold cross-validation mean accuracy, sensitivity, specificity, and Matthews correlation coefficient of 80.38%, 0.79, 0.81, and 0.60, respectively. Functional enrichment of the 10 highest ranked miRNAs was analysed in terms of Kyoto Encyclopedia of Genes and Genomes and Gene Ontology annotations. Kaplan-Meier survival analysis of the highest ranked miRNAs revealed that four miRNAs, hsa-miR-503, hsa-miR-1307, hsa-miR-212 and hsa-miR-592, were significantly associated with the prognosis of patients with breast cancer.
URI: http://dx.doi.org/10.1038/s41598-018-34604-3
http://hdl.handle.net/11536/148391
ISSN: 2045-2322
DOI: 10.1038/s41598-018-34604-3
期刊: SCIENTIFIC REPORTS
Volume: 8
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