1
|
Barbu E, Mihaila AC, Gan AM, Ciortan L, Macarie RD, Tucureanu MM, Filippi A, Stoenescu AI, Petrea SV, Simionescu M, Balanescu SM, Butoi E. The Elevated Inflammatory Status of Neutrophils Is Related to In-Hospital Complications in Patients with Acute Coronary Syndrome and Has Important Prognosis Value for Diabetic Patients. Int J Mol Sci 2024; 25:5107. [PMID: 38791147 PMCID: PMC11121518 DOI: 10.3390/ijms25105107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/26/2024] Open
Abstract
Despite neutrophil involvement in inflammation and tissue repair, little is understood about their inflammatory status in acute coronary syndrome (ACS) patients with poor outcomes. Hence, we investigated the potential correlation between neutrophil inflammatory markers and the prognosis of ACS patients with/without diabetes and explored whether neutrophils demonstrate a unique inflammatory phenotype in patients experiencing an adverse in-hospital outcome. The study enrolled 229 ACS patients with or without diabetes. Poor evolution was defined as either death, left ventricular ejection fraction (LVEF) <40%, Killip Class 3/4, ventricular arrhythmias, or mechanical complications. Univariate and multivariate analyses were employed to identify clinical and paraclinical factors associated with in-hospital outcomes. Neutrophils isolated from fresh blood were investigated using qPCR, Western blot, enzymatic assay, and immunofluorescence. Poor evolution post-myocardial infarction (MI) was associated with increased number, activity, and inflammatory status of neutrophils, as indicated by significant increase of Erythrocyte Sedimentation Rate (ESR), C-reactive protein (CRP), fibrinogen, interleukin-1β (IL-1β), and, interleukin-6 (IL-6). Among the patients with complicated evolution, neutrophil activity had an important prognosis value for diabetics. Neutrophils from patients with unfavorable evolution revealed a pro-inflammatory phenotype with increased expression of CCL3, IL-1β, interleukin-18 (IL-18), S100A9, intracellular cell adhesion molecule-1 (ICAM-1), matrix metalloprotease (MMP-9), of molecules essential in reactive oxygen species (ROS) production p22phox and Nox2, and increased capacity to form neutrophil extracellular traps. Inflammation is associated with adverse short-term prognosis in acute ACS, and inflammatory biomarkers exhibit greater specificity in predicting short-term outcomes in diabetics. Moreover, neutrophils from patients with unfavorable evolution exhibit distinct inflammatory patterns, suggesting that alterations in the innate immune response in this subgroup may exert detrimental effects on disease progression.
Collapse
Affiliation(s)
- Elena Barbu
- Department of Cardiology, Elias Emergency Hospital, 011461, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (A.I.S.); (S.M.B.)
| | - Andreea Cristina Mihaila
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania; (A.C.M.); (A.-M.G.); (L.C.); (R.D.M.); (M.M.T.); (M.S.)
| | - Ana-Maria Gan
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania; (A.C.M.); (A.-M.G.); (L.C.); (R.D.M.); (M.M.T.); (M.S.)
| | - Letitia Ciortan
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania; (A.C.M.); (A.-M.G.); (L.C.); (R.D.M.); (M.M.T.); (M.S.)
| | - Razvan Daniel Macarie
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania; (A.C.M.); (A.-M.G.); (L.C.); (R.D.M.); (M.M.T.); (M.S.)
| | - Monica Madalina Tucureanu
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania; (A.C.M.); (A.-M.G.); (L.C.); (R.D.M.); (M.M.T.); (M.S.)
| | - Alexandru Filippi
- Department of Biochemistry and Biophysics, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Andra Ioana Stoenescu
- Department of Cardiology, Elias Emergency Hospital, 011461, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (A.I.S.); (S.M.B.)
| | | | - Maya Simionescu
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania; (A.C.M.); (A.-M.G.); (L.C.); (R.D.M.); (M.M.T.); (M.S.)
| | - Serban Mihai Balanescu
- Department of Cardiology, Elias Emergency Hospital, 011461, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (A.I.S.); (S.M.B.)
| | - Elena Butoi
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania; (A.C.M.); (A.-M.G.); (L.C.); (R.D.M.); (M.M.T.); (M.S.)
| |
Collapse
|
2
|
Bakhshi A, Khani M, Alipour Parsa S, Khaheshi I, Namazi MH, Mazouri A, Bidram P, Safi M, Vakili H, Eslami V, Saadat H, Heidari L, Sohrabifar N. Investigating the expression level of miR-17-3p, miR-101-3p, miR-335-3p, and miR-296-3p in the peripheral blood of patients with acute myocardial infarction. Mol Cell Biochem 2024; 479:859-868. [PMID: 37222878 DOI: 10.1007/s11010-023-04766-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/09/2023] [Indexed: 05/25/2023]
Abstract
The role of inflammation has been proven in acute myocardial infarction (AMI) pathogenesis. Due to the effect of NLRP3 gene expression in the inflammation process of MI, we aimed to explore the expression changes and diagnostic power of four inflammation-related miRNAs including miR-17-3p, miR-101-3p, miR-335-3p, miR-296-3p and their potential target, NLRP3, in ST-segment elevation myocardial infarction (STEMI), and non-STEMI (NSTEMI) patients as two major classes of AMI. The expression level of these genes were evaluated in 300 participants equally divided into three groups of STEMI, NSTEMI, and control using quantitative real-time PCR. The expression level of NLRP3 was upregulated in STEMI and NSTEMI patients compared to control subjects. Besides, the expression levels of miR-17-3p, miR-101-3p, and miR-296-3p were significantly downregulated in STEMI and NSTEMI patients compared to controls. The increased expression of NLRP3 had a very strong inverse correlation with miR-17-3p in patients with STEMI and with miR-101-3p in the STEMI and NSTEMI patients. ROC curve analysis showed that the expression level of miR-17-3p had the highest diagnostic power for discrimination between STEMI patients and controls. Remarkably, the combination of all markers resulted in a higher AUC. In summary, there is a significant association between the expression levels of miR-17-3p, miR-101-3p, miR-335-3p, miR-296-3p, and NLRP3 and the incidence of AMI. Although the miR-17-3p expression level has the highest diagnostic power to distinguish between STEMI patients and control subjects, the combination of these miRNAs and NLRP3 could serve as a novel potential diagnostic biomarker of STEMI.
Collapse
Affiliation(s)
- Alireza Bakhshi
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Khani
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeed Alipour Parsa
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Isa Khaheshi
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hassan Namazi
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Mazouri
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Peyman Bidram
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Morteza Safi
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Vakili
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Eslami
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Habib Saadat
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Laleh Heidari
- Medical Genetic Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasim Sohrabifar
- Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
3
|
Bourne JH, Campos J, Hopkin SJ, Whitworth K, Palis J, Senis YA, Rayes J, Iqbal AJ, Brill A. Megakaryocyte NLRP3 hyperactivation induces mild anemia and potentiates inflammatory response in mice. Front Immunol 2023; 14:1226196. [PMID: 37622117 PMCID: PMC10445124 DOI: 10.3389/fimmu.2023.1226196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 07/17/2023] [Indexed: 08/26/2023] Open
Abstract
Background The NOD-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome has been described in both immune cells and platelets, but its role in the megakaryocyte (MK) lineage remains elusive. Objective The aim of this study was to explore the role of NLRP3 inflammasome in megakaryocytes and platelets. Methods We generated Nlrp3 A350V/+/Gp1ba-CreKI/+ mice carrying a mutation genetically similar to the one observed in human Muckle-Wells syndrome, which leads to hyperactivity of NLRP3 specifically in MK and platelets. Results Platelets from the mutant mice expressed elevated levels of both precursor and active form of caspase-1, suggesting hyperactivity of NLRP3 inflammasome. Nlrp3 A350V/+/Gp1ba-CreKI/+ mice developed normally and had normal platelet counts. Expression of major platelet receptors, platelet aggregation, platelet deposition on collagen under shear, and deep vein thrombosis were unchanged. Nlrp3 A350V/+/Gp1ba-CreKI/+ mice had mild anemia, reduced Ter119+ cells in the bone marrow, and splenomegaly. A mild increase in MK TGF-β1 might be involved in the anemic phenotype. Intraperitoneal injection of zymosan in Nlrp3 A350V/+/Gp1ba-CreKI/+ mice induced increased neutrophil egression and elevated levels of a set of proinflammatory cytokines, alongside IL-10 and G-CSF, in the peritoneal fluid as compared with control animals. Conclusion MK/platelet NLRP3 inflammasome promotes the acute inflammatory response and its hyperactivation in mice leads to mild anemia and increased extramedullary erythropoiesis.
Collapse
Affiliation(s)
- Joshua H. Bourne
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre for Inflammatory Diseases, Department of Medicine at Monash Health, School of Clinical Sciences, Monash Medical Centre, Monash University, Clayton, VIC, Australia
| | - Joana Campos
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Sophie J. Hopkin
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Katharine Whitworth
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - James Palis
- Department of Pediatrics, University of Rochester Medical Center, Rochester, NY, United States
| | - Yotis A. Senis
- Etablissement Français du Sang, Inserm Institut National de la Santé et de la Recherche Médicale (INSERM), Unité Mixte de Recherche (UMR)-S1255 Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Julie Rayes
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Asif J. Iqbal
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Alexander Brill
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| |
Collapse
|
4
|
Su Y, Zhang T, Qiao R. Pyroptosis in platelets: Thrombocytopenia and inflammation. J Clin Lab Anal 2023; 37:e24852. [PMID: 36852778 PMCID: PMC10020847 DOI: 10.1002/jcla.24852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 12/28/2022] [Accepted: 02/05/2023] [Indexed: 03/01/2023] Open
Abstract
OBJECTIVE The purpose of this manuscript was to conclude the role of platelets in immune inflammation and discuss the complex mechanisms of pyroptosis in platelets as well as their related diseases. METHODS This article reviewed the existing literature to see the development of pyroptosis in platelets. RESULTS Platelets have been shown to be capable of activating inflammasomes assembled from NOD-like receptor family pyrin domain containing 3 (NLRP3), apoptosis-associated speck-like protein containing a CARD (ASC) and caspase-1. Recently, they were also implicated in pyroptosis. Cleaved by caspase-1, N-terminal gasdermin D (N-GSDMD) could form pores in the cell membrane, inducing nonselective intracellular substance release. This programmed cell death induced thrombocytopenia and inflammatory cytokine release such as IL-1β and IL-18, promoting platelet aggregation, vaso-occlusion, endothelial permeability and cascaded inflammatory response. CONCLUSION Pyroptosis in platelets contributes to thrombocytopenia and inflammation.
Collapse
Affiliation(s)
- Yang Su
- Department of Laboratory MedicinePeking University Third HospitalBeijingChina
| | - Tiannan Zhang
- Department of Laboratory MedicinePeking University Third HospitalBeijingChina
| | - Rui Qiao
- Department of Laboratory MedicinePeking University Third HospitalBeijingChina
| |
Collapse
|
5
|
Mo DG, Wang L, Han QF, Yu K, Liu JH, Yao HC. NLRP3 Inflammasome May Be a Biomarker for Risk Stratification in Patients with Acute Coronary Syndrome. J Inflamm Res 2022; 15:6595-6605. [PMID: 36510493 PMCID: PMC9739063 DOI: 10.2147/jir.s383903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/18/2022] [Indexed: 12/12/2022] Open
Abstract
Purpose Acute coronary syndrome (ACS) has a high incidence and mortality rate worldwide, which has a considerable negative impact on the global economy. This study aimed to identify a group of ACS patients at a high risk of recurrent adverse cardiac events using the plasma NLRP3 inflammasome. Patients and methods ACS patients admitted to Liaocheng People's Hospital between June 2021 and March 2022 were enrolled in this study. Patients were divided into low (levels < 3.84 ng/mL) and high (levels ≥ 3.84 ng/mL) groups based on the median NLRP3 inflammasome levels. The patients were divided into three groups according to the Thrombolysis in Myocardial Infarction Risk Score for Secondary Prevention (TRS-2P): low (scores ≤ 2 points), intermediate (scores = 3 points), and high (score ≥ 4 points) risk. We investigated the relationship between NLRP3 inflammasome and laboratory indicators. Additionally, we examined whether the NLRP3 inflammasome was an independent predictor of high TRS-2P and explored the applicability of the plasma NLRP3 inflammasome for predicting high TRS-2P. Results Logistic regression analysis revealed that NLRP3 inflammasome was an independent predictor of high TRS-2P (odds ratio [OR]:2.013; 95% confidence interval [CI]: 1.174-3.452). The area under the receiver operating characteristic curve value of the NLRP3 inflammasome was 0.674 (95% CI: 0.611-0.737; P < 0.001). Conclusion NLRP3 inflammasome levels are an independent predictive factor for high TRS-2P levels, which indicates that the NLRP3 inflammasome may help predict the prognosis of ACS patients.
Collapse
Affiliation(s)
- De-Gang Mo
- Department of Cardiology, Liaocheng People’s Hospital Affiliated to Shandong First Medical University, Liaocheng, People’s Republic of China
| | - Lin Wang
- Cardiologic Color Doppler Room, Liaocheng People’s Hospital Affiliated to Shandong First Medical University, Liaocheng, People’s Republic of China
| | - Qian-Feng Han
- Department of Cardiology, Liaocheng People’s Hospital Affiliated to Shandong First Medical University, Liaocheng, People’s Republic of China
| | - Kang Yu
- Department of Laboratory Medicine, Liaocheng People’s Hospital Affiliated to Shandong First Medical University, Liaocheng, People’s Republic of China
| | - Jia-Hui Liu
- Department of Cardiology, Liaocheng People’s Hospital Affiliated to Shandong First Medical University, Liaocheng, People’s Republic of China
| | - Heng-Chen Yao
- Department of Cardiology, Liaocheng People’s Hospital Affiliated to Shandong First Medical University, Liaocheng, People’s Republic of China,Correspondence : Heng-Chen Yao, Department of Cardiology, Liaocheng People’s Hospital Affiliated to Shandong First Medical University, Liaocheng, 252000, People’s Republic of China, Email
| |
Collapse
|
6
|
Balashkevich N, Kazymov M, Syzdykbayev M, Adylova A. Molecular basis of acute coronary syndrome. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2022; 27:40. [PMID: 35968216 PMCID: PMC9374151 DOI: 10.4103/jrms.jrms_695_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 12/08/2021] [Accepted: 01/24/2022] [Indexed: 11/04/2022]
Abstract
Cardiovascular diseases (CVD) comprise of various heart and blood vessels-related diseases. Acute coronary syndrome (ACS) is one of them. Basic researchers and cardiologists have witnessed landmark developments related to ACS and despite rapid refinement in our understanding; scientists are seeking answers for more questions. Scientists have mapped wide ranging proteins and intricate protein networks which play central role in the pathogenesis in ACS. In this review, we have attempted to summarize underlying causes of ACS. Better understanding of the disease pathology will enable us to get a step closer to an effective clinical management.
Collapse
Affiliation(s)
| | - Maxut Kazymov
- Department of Family Medicine, Semey Medical University, Semey, Kazakhstan
| | - Marat Syzdykbayev
- Department of Anesthesiology, Reanimatology and Narcology, Semey Medical University, Semey, Kazakhstan
| | - Aima Adylova
- Department of Public Health, Kazakhstan School of Public Health, Almaty, Kazakhstan,Address for correspondence: Dr. Aima Adylova, Kazakhstan School of Public Health, Almaty, Kazakhstan. E-mail:
| |
Collapse
|
7
|
Zhang G, Chen H, Guo Y, Zhang W, Jiang Q, Zhang S, Han L, Chen S, Xue R. Activation of Platelet NLRP3 Inflammasome in Crohn's Disease. Front Pharmacol 2021; 12:705325. [PMID: 34262463 PMCID: PMC8273542 DOI: 10.3389/fphar.2021.705325] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 06/11/2021] [Indexed: 01/04/2023] Open
Abstract
Patients with Crohn’s disease (CD) are inclined to have platelet hyperactivity and an increased risk of intestinal micro-thrombosis. However, the mechanisms underlying platelet hyperactivity in CD are not well understood. We investigated the assembly of platelet NLRP3 inflammasome in patients with active CD and its correlation with platelet hyperactivity. In this study, Real-time PCR and western blotting analyses uncovered that ASC, NLRP3, and active caspase-1 were significantly upregulated in platelets from patients with active CD compared with healthy subjects. As revealed by flow cytometry (FCM) and ELISA analyses, the levels of interleukin-1β in both serum and isolated platelets were elevated in patients with active CD. Co-immunoprecipitation and immunofluorescence experiments revealed an increased assembly of NLRP3 inflammasome in platelets from patients with active CD. In addition, higher levels of intracellular reactive oxygen species (ROS) were observed in these platelets by FCM. Furthermore, elevated levels of platelet P-selectin exposure and fibrinogen binding were demonstrated in patients with active CD by FCM. They were positively correlated with the protein levels of NLRP3 inflammasome components. Collectively, our results indicate that the ROS-NLRP3 inflammasome-interleukin-1β axis may contribute to platelet hyperactivity in active CD.
Collapse
Affiliation(s)
- Ge Zhang
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - He Chen
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yifan Guo
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wei Zhang
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qiuyu Jiang
- Shanghai Medical College, Fudan University, Shanghai, China
| | - Si Zhang
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Liping Han
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - She Chen
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Ruyi Xue
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
8
|
Protective Role of Platelets in Myocardial Infarction and Ischemia/Reperfusion Injury. Cardiol Res Pract 2021; 2021:5545416. [PMID: 34123416 PMCID: PMC8169247 DOI: 10.1155/2021/5545416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 05/05/2021] [Indexed: 12/26/2022] Open
Abstract
Thrombotic occlusion of the coronary artery is a key component in the pathogenesis of myocardial ischemia and myocardial infarction (MI). The standard therapy for ischemia is revascularization and restoration of blood flow to previously ischemic myocardium. Paradoxically, reperfusion may result in further tissue damage called ischemia/reperfusion injury (IRI). Platelets play a major role in the pathogenesis of MI and IRI, since they contribute to the thrombus and microthrombi formation, inflammation, release of immunomodulatory mediators, and vasoconstrictive molecules. Antiplatelet therapies have proven efficacy in the prevention of thrombosis and play a protective role in cardiac IRI. Beyond the deterioration effect of platelets in MI and IRI, in the 90s the first reports on a protective effect of molecules released from platelets during MI appeared. However, the role of platelets in cardioprotection is still poorly understood. This review describes the involvement of platelets in MI, IRI, and inflammation. It mainly focuses on the protective role of platelets in MI and IRI. Platelets are involved in cardioprotection based on platelet-releasing molecules and antiplatelet therapy, apart from antiaggregatory effects. Additionally, the use of platelet-derived microparticles as possible markers of MI, with and without comorbidities, and their role in cardioprotection are discussed. This review is aimed at illustrating the present knowledge on the role of platelets in MI and IRI, especially in a context of cardioprotection.
Collapse
|