International Journal of Medical Sciences
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24 April 2017

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Int J Med Sci 2017; 14(2):181-190. doi:10.7150/ijms.17119

Research Paper

Immune Cell Repertoire and Their Mediators in Patients with Acute Myocardial Infarction or Stable Angina Pectoris

Wenwen Yan1, Yanli Song2, Lin Zhou1, Jinfa Jiang1, Fang Yang3, Qianglin Duan1, Lin Che1, Yuqin Shen1✉, Haoming Song1✉, Lemin Wang1✉

1. Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China;
2. Department of Emergency Medicine, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China;
3. Department of Experimental Diagnosis, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.

Abstract

Background: To evaluate the natural innate and adaptive immunity through gene expression and cytology levels in peripheral blood mononuclear cells in patients with acute myocardial infarction (AMI), stable angina pectoris (SAP) and controls.

Methods: 210 patients with AMI, 210 with SAP, and 250 clinical controls were recruited. Whole human genome microarray analysis was performed in 20 randomly chosen subjects per group were examined to detect the expressions of complement markers, natural killer cells, T cells and B cells. The quantity of these cells and related cytokines as well as immunoglobulin levels were measured in all subjects.

Results: In AMI group, the mRNA expressions of late complement component, markers of natural killer cells, CD3+, CD8+ T cells and B cells were down-regulated, while those of early complement component and CD4+T cells were up-regulated (p<0.05). In both AMI and SAP patients, the quantity of natural killer cells, CD3+, CD8+ T cells, B cells, IgM and IgG were significantly lower than those of the controls. CD4+ T cells, CH50, C3, C4, IL-2, IL-4, IL-6 and IFN-γ were significantly higher (p<0.05).

Conclusions: In AMI patients, both of gene expressions related to complement, natural killer cells, CD3+, CD8+ T cells, B cells and the quantity of these immune cells decreased while cell number reduced in SAP patients. Immune function in both AMI and SAP patients decreased especially in AMI patients with declined gene and protein levels. To improve the immune system is a potential target for medical interventions and prevention in AMI.

Keywords: myocardial infarction, stable angina pectoris, gene expression, innate immunity, adaptive immunity.

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) License. See http://ivyspring.com/terms for full terms and conditions.
How to cite this article:
Yan W, Song Y, Zhou L, Jiang J, Yang F, Duan Q, Che L, Shen Y, Song H, Wang L. Immune Cell Repertoire and Their Mediators in Patients with Acute Myocardial Infarction or Stable Angina Pectoris. Int J Med Sci 2017; 14(2):181-190. doi:10.7150/ijms.17119. Available from http://www.medsci.org/v14p0181.htm