ISSN 1671-5411 CN 11-5329/R
Zi-Liang YE, Hai-Li LU, Qiang SU, Lang Li. Association between the level of CD4 + T lymphocyte microRNA-155 and coronary artery disease in patients with unstable angina pectoris. J Geriatr Cardiol 2018; 15(10): 611-617. doi: 10.11909/j.issn.1671-5411.2018.10.003
Citation: Zi-Liang YE, Hai-Li LU, Qiang SU, Lang Li. Association between the level of CD4 + T lymphocyte microRNA-155 and coronary artery disease in patients with unstable angina pectoris. J Geriatr Cardiol 2018; 15(10): 611-617. doi: 10.11909/j.issn.1671-5411.2018.10.003

Association between the level of CD4 + T lymphocyte microRNA-155 and coronary artery disease in patients with unstable angina pectoris

doi: 10.11909/j.issn.1671-5411.2018.10.003
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This research was supported by Xinxin-Merck Cardiovascular Scientific Research Fund (NO: 2017-CCA-xinxin merck fund-001)and Innovation Project of Guangxi Graduate Education (NO: YCSW2018101).

  • Received Date: 2017-12-27
  • Rev Recd Date: 2018-03-01
  • Publish Date: 2018-10-28
  • Objective To study the association between the expression of microRNA-155 (miRNA-155) in peripheral blood CD4+ T lymphocytes and the level of serum interferon-γ (IFN-γ) concentration and the severity of coronary artery disease (CAD). Methods After coronary angiography, 252 patients with suspected unstable angina pectoris (UAP) were divided into the UAP group (128 patients with CAD confirmed by angiography) and the control group (124 patients without CAD confirmed by angiography). Fresh peripheral blood was extracted 16–24 h before coronary angiography, CD4+T lymphocytes was tested using immunomagnetic beads, the expression of miRNA-155 was tested using quantitative PCR and the expression of IFN-γ was tested using enzyme-linked immunosorbent assay (ELISA). According to the results of angiography, Gensini score of coronary artery lesions was analyzed. Furthermore, we also analysis the association between the level of miRNA-155 in peripheral blood CD4+ T lymphocytes, the level of serum IFN-γ and Gensini score of coronary lesion. Results The levels of miRNA-155 (0.49 ± 0.08 vs. 0.23 ± 0.09) and IFN-γ (227.58 ± 26.01 vs. 141.23 ± 17.89) in the UAP group were significantly higher than that of the control group, the difference was statistically significant. The level of miRNA-155 and IFN-γ were positively correlated with Gensini score of CAD (r = 0.534, r= 0.713, respectively, all P r = 0.686, P Conclusions The level of miRNA-155 in peripheral blood CD4+ T lymphocytes and the level of IFN-γ are closely correlated with the severity of CAD.
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