title: [Targeted effect of microRNA on nerve growth factor pathway and its functional network in patients with unstable angina].
abstract: OBJECTIVE
  To study microRNA profile alteration in unstable angina (UA) patients and its functional network via nerve growth factor (NGF) signaling pathway.
  
  
  METHODS
  Whole blood microRNAs were isolated from individuals with angiographically negative report (n=6) and UA patients (n=6), Taqman low-density microRNA array was performed to detect the microRNA profile, and SAM tool was conducted to calculate the differential expressed microRNA. Bioinformatic prediction tools (Targetsan, Miranda, Diana-microT) were used to obtain microRNA target genes. Targets'enriched pathways were analyzed by DAVID and biological function clusters were figured out by Panther database. The functional network of microRNAs by Cytoscape was costructed.
  
  
  RESULTS
  In the study, 20 microRNAs were significantly upregulated in the UA group were observed. Their main target signaling pathways were NGF, their target genes' functional clusters were in signal transduction, cell proliferation and differentiation, cell cycles, immunity and inflammation, neurogenesis, neuronal activity and apoptosis.
  
  
  CONCLUSIONS
  To upregulate microRNAs in UA patients is a major way to inhibit NGF signaling pathways, whose function is to suppress cell proliferation and differentiation, immunity and inflammation, neuronal growth, etc., and to stabilize the vulnerable atherosclerotic plaque.
authors.affiliation: Department of Cardiology, Peking University People's Hospital, Beijing 100044, China.
authors.forename: J J
authors.initials: JJ
authors.lastname: Li
authors.affiliation: Department of Cardiology, Peking University People's Hospital, Beijing 100044, China.
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.affiliation: Department of Cardiology, Peking University People's Hospital, Beijing 100044, China.
authors.forename: J Y
authors.initials: JY
authors.lastname: Ren
mesh_terms: D000789:Angina, Unstable / Q000378:metabolism*; D019295:Computational Biology; D006801:Humans; D035683:MicroRNAs / Q000378:metabolism*; D009414:Nerve Growth Factors / Q000378:metabolism*; D015398:Signal Transduction
chemical_list: D035683:MicroRNAs; D009414:Nerve Growth Factors