Lymphocyte Subpopulations in Myocardial Infarction: a Comparison Between Peripheral and Intracoronary Blood
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The frequency and profile of lymphocyte subsets within the culprit coronary artery were investigated in 33 patients with myocardial infarction and compared to their systemic circulating counterparts. T cell subsets including CD4(+)CD28null, activated and regulatory T-cells, TH1/TH2/TH17 phenotypes, NK and B-cells were studied in intracoronary (IC) and arterial peripheral blood (PB) samples. CD4(+)CD28null T-lymphocytes were significantly increased in IC compared to PB (3.7 vs. 2.9 %, p < 0.0001). Moreover, patients with more than 6 h of evolution of STEMI exhibited higher levels of CD4(+)CD28null T-cells suggesting that this subset may be associated with more intense myocardial damage. The rare NK subpopulation CD3(-)CD16(+)CD56(-) was also increased in IC samples (5.6 vs. 3.9 %, p = 0.006). CD4(+)CD28null T-cells and CD3(-)CD16(+)CD56(-) NK subpopulations were also associated with higher CK levels. Additionally, IFN-γ and IL10 were significantly higher in IC CD4(+) lymphocytes. Particular immune cell populations with a pro-inflammatory profile at the site of onset were increased relative to their circulating counterparts suggesting a pathophysiological role of these cells in plaque instability, thrombi and myocardial damage.
Miquelestorena-Standley E, Vinhais da Silva A, Monnier M, Chadet S, Piollet M, Heraud A Sci Rep. 2023; 13(1):16745.
PMID: 37798364 PMC: 10556078. DOI: 10.1038/s41598-023-44036-3.
Sun J, Sheng X, Feng Q, Yin Y, Li Z, Ding S J Am Heart Assoc. 2022; 11(2):e022879.
PMID: 35023363 PMC: 9238519. DOI: 10.1161/JAHA.121.022879.
Zhang Y, Tian C, Liu X, Zhang H Cardiovasc Ther. 2020; 2020:8535314.
PMID: 33224271 PMC: 7671815. DOI: 10.1155/2020/8535314.
Seropian I, Gonzalez G, Maller S, Berrocal D, Abbate A, Rabinovich G Mediators Inflamm. 2018; 2018:8696543.
PMID: 30524200 PMC: 6247465. DOI: 10.1155/2018/8696543.