Comprehensive analysis of T-cell receptor repertoire in patients with acute coronary syndrome by high-throughput sequencing

BMC Cardiovascular Disorders

Wei Zhong¹  Zhixiong Zhong¹  Sudong Liu²  Yongyu Chen²  Xiaodong Gu²  Jing Liu²  Ruiqiang Weng² 

[1] Center for Precision Medicine, Meizhou People’s Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-sen University;Clinical Core Laboratory, Meizhou People’s Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-sen University;

关键词: Acute coronary syndrome (ACS);    T-cell receptor (TCR);    Clonotype;    High-throughput sequencing (HTS);   

DOI  :  10.1186/s12872-020-01538-6

来源: DOAJ

【 摘 要 】

Abstract Background This study aims to investigate the T-cell receptor (TCR) repertoire in patients with acute coronary syndrome (ACS). Methods The TCR repertoires of 9 unstable angina patients (UA), 14 acute myocardial infarction patients (AMI) and 9 normal coronary artery (NCA) patients were profiled using high-throughput sequencing (HTS). The clonal diversity of the TCR repertoires in different groups was analyzed, as well as the frequencies of variable (V), diversity (D) and joining(J) gene segments. Results ACS patients including UA and AMI, showed reduced TCRβ diversity than NCA patients. ACS patients presented higher levels of clonal expansion. The clonotype overlap of complementarity determining region 3(CDR3) was significantly varied between different groups. A total of 10 V genes and 1 J gene were differently utilized between ACS and NCA patients. We identified some shared CDR3 amino acid sequences that were presented in ACS but not in NCA patients. Conclusions This study revealed the distinct TCR repertoires in patients with ACS and demonstrated the presence of disease associated T-cell clonotypes. These findings suggested a role of T cells in ACS and provided a new way to explore the mechanisms of ACS.

【 授权许可】

Unknown