title: Identification of circulating microRNAs as potential biomarkers for detecting acute ischemic stroke.
abstract: MicroRNAs (miRNAs) are present in serum and have the potential to serve as disease biomarkers. As such, it is important to explore the clinical value of miRNAs in serum as biomarkers for ischemic stroke (IS) and cast light on the pathogenesis of IS. In this study, we screened differentially expressed serum miRNAs from IS and normal people by miRNA microarray analysis, and validated the expression of candidate miRNAs using quantitative reverse-transcriptase polymerase chain reaction assays. Furthermore, we performed gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) pathway analyses to disclose functional enrichment of genes predicted to be regulated by the differentially expressed miRNAs. Notably, our results revealed that 115 miRNAs were differentially expressed in IS, among which miR-32-3p, miR-106-5p, and miR-532-5p were first found to be associated with IS. In addition, GO and KEGG pathway analyses showed that genes predicted to be regulated by differentially expressed miRNAs were significantly enriched in several related biological process and pathways, including axon guidance, glioma, MAPK signaling, mammalian target of rapamycin signaling, and ErbB-signaling pathway. In conclusion, we identified the changed expression pattern of miRNAs in IS. Serum miR-32-3p, miR-106-5p, miR-1246, and miR-532-5p may serve as potential diagnostic biomarkers for IS. Our results also demonstrate a novel role for miRNAs in the pathogenesis of IS.
authors.affiliation: Department of Laboratory Medicine, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Li
authors.affiliation: Department of Laboratory Medicine, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China.
authors.forename: Fengmeng
authors.initials: F
authors.lastname: Teng
authors.affiliation: Department of Laboratory Medicine, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.affiliation: Department of Microbiology and Immunology, Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
authors.forename: Mingshun
authors.initials: M
authors.lastname: Zhang
authors.affiliation: Department of Laboratory Medicine, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China.
authors.forename: Jinping
authors.initials: J
authors.lastname: Wu
authors.affiliation: Department of Laboratory Medicine, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, Jiangsu, China. zzzzcb99@163.com.|Basic Medical Sciences, Nanjing University of Chinese Medicine, Nanjing, 210046, Jiangsu, China. zzzzcb99@163.com.
authors.forename: Chunbing
authors.initials: C
authors.lastname: Zhang
mesh_terms: D000368:Aged; D015415:Biomarkers / Q000097:blood; D002545:Brain Ischemia / Q000097:blood* / Q000175:diagnosis* / Q000235:genetics; D005260:Female; D053263:Gene Regulatory Networks / Q000502:physiology*; D006801:Humans; D008297:Male; D035683:MicroRNAs / Q000097:blood* / Q000235:genetics; D008875:Middle Aged; D015398:Signal Transduction / Q000502:physiology; D020521:Stroke / Q000097:blood* / Q000175:diagnosis* / Q000235:genetics
chemical_list: D015415:Biomarkers; D035683:MicroRNAs