TY - JOUR
T1 - Circulating microparticle signature in coronary and peripheral blood of ST elevation myocardial infarction patients in relation to pain-to-PCI elapsed time
AU - Suades, R.
AU - Padró, T.
AU - Crespo, J.
AU - Ramaiola, I.
AU - Martin-Yuste, V.
AU - Sabaté, M.
AU - Sans-Roselló, J.
AU - Sionis, A.
AU - Badimon, L.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - © 2015 Elsevier Ireland Ltd. All rights reserved. Background: Circulating microparticle (cMP) levels are increased in the acute phase of ST-elevation myocardial infarction (STEMI) and associate with microvascular obstruction; however, the precise cMP-parental cell signature and activation level are not elucidated. Here, we aimed to study the cMP signature in STEMI-patients and whether cMP phenotype changes in relation to onset of pain-to-PCI [ischemic time (IT)]-elapsed time. Methods Blood was taken at PCI from the culprit coronary and the peripheral circulation in STEMI-patients (N = 40). Two control groups were included: peripheral blood of age-matched patients recovering from STEMI [after 72 h] and of control individuals (N = 20/group). cMP-parental origin and activation level were characterized by triple-labeling flow cytometry. Results: Procoagulant annexin V-positive cMPs bearing parental cell markers as well as markers of activated cells displayed a significantly different profile in STEMI-patients, in control individuals and in patients recovering from STEMI. cMPs derived from monocytes, endothelium, and activated vascular cells were higher in the culprit coronary artery than in peripheral blood in STEMI-patients, especially in patients intervened at short IT. Indeed, cMP levels in coronary blood were inversely related to IT duration (more abundant in thrombi with pain-to-PCI time < 180 min). Conclusions: A characteristic [CD66b+/CD62E+/CD142+] cMP signature in the systemic circulation reflects the formation of coronary thrombotic occlusions in STEMI-patients. Changes in the cMP signature in the culprit coronary artery blood reveal the sensitivity of MPs to detect the ischemia-elapsed time. Interestingly, cMPs in peripheral blood may be sensitive markers of the thrombo-occlusive vascular process developing in the coronary arteries of STEMI-patients.
AB - © 2015 Elsevier Ireland Ltd. All rights reserved. Background: Circulating microparticle (cMP) levels are increased in the acute phase of ST-elevation myocardial infarction (STEMI) and associate with microvascular obstruction; however, the precise cMP-parental cell signature and activation level are not elucidated. Here, we aimed to study the cMP signature in STEMI-patients and whether cMP phenotype changes in relation to onset of pain-to-PCI [ischemic time (IT)]-elapsed time. Methods Blood was taken at PCI from the culprit coronary and the peripheral circulation in STEMI-patients (N = 40). Two control groups were included: peripheral blood of age-matched patients recovering from STEMI [after 72 h] and of control individuals (N = 20/group). cMP-parental origin and activation level were characterized by triple-labeling flow cytometry. Results: Procoagulant annexin V-positive cMPs bearing parental cell markers as well as markers of activated cells displayed a significantly different profile in STEMI-patients, in control individuals and in patients recovering from STEMI. cMPs derived from monocytes, endothelium, and activated vascular cells were higher in the culprit coronary artery than in peripheral blood in STEMI-patients, especially in patients intervened at short IT. Indeed, cMP levels in coronary blood were inversely related to IT duration (more abundant in thrombi with pain-to-PCI time < 180 min). Conclusions: A characteristic [CD66b+/CD62E+/CD142+] cMP signature in the systemic circulation reflects the formation of coronary thrombotic occlusions in STEMI-patients. Changes in the cMP signature in the culprit coronary artery blood reveal the sensitivity of MPs to detect the ischemia-elapsed time. Interestingly, cMPs in peripheral blood may be sensitive markers of the thrombo-occlusive vascular process developing in the coronary arteries of STEMI-patients.
KW - Biomarkers
KW - Circulating cell-derived microparticles
KW - Myocardial infarction
KW - Myocardial revascularization
KW - Thrombosis
U2 - 10.1016/j.ijcard.2015.09.011
DO - 10.1016/j.ijcard.2015.09.011
M3 - Article
VL - 202
SP - 378
EP - 387
ER -