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Panzer B, Kopp CW, Neumayer C, Koppensteiner R, Jozkowicz A, Poledniczek M, Gremmel T, Jilma B, Wadowski PP. Toll-like Receptors as Pro-Thrombotic Drivers in Viral Infections: A Narrative Review. Cells 2023; 12:1865. [PMID: 37508529 PMCID: PMC10377790 DOI: 10.3390/cells12141865] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Toll-like receptors (TLRs) have a critical role in the pathogenesis and disease course of viral infections. The induced pro-inflammatory responses result in the disturbance of the endovascular surface layer and impair vascular homeostasis. The injury of the vessel wall further promotes pro-thrombotic and pro-coagulatory processes, eventually leading to micro-vessel plugging and tissue necrosis. Moreover, TLRs have a direct role in the sensing of viruses and platelet activation. TLR-mediated upregulation of von Willebrand factor release and neutrophil, as well as macrophage extra-cellular trap formation, further contribute to (micro-) thrombotic processes during inflammation. The following review focuses on TLR signaling pathways of TLRs expressed in humans provoking pro-thrombotic responses, which determine patient outcome during viral infections, especially in those with cardiovascular diseases.
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Affiliation(s)
- Benjamin Panzer
- Department of Cardiology, Wilhelminenspital, 1090 Vienna, Austria
| | - Christoph W Kopp
- Division of Angiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria
| | - Christoph Neumayer
- Division of Vascular Surgery, Department of Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Renate Koppensteiner
- Division of Angiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria
| | - Alicja Jozkowicz
- Faculty of Biophysics, Biochemistry and Biotechnology, Department of Medical Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Michael Poledniczek
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas Gremmel
- Institute of Cardiovascular Pharmacotherapy and Interventional Cardiology, Karl Landsteiner Society, 3100 St. Pölten, Austria
- Department of Internal Medicine I, Cardiology and Intensive Care Medicine, Landesklinikum Mistelbach-Gänserndorf, 2130 Mistelbach, Austria
| | - Bernd Jilma
- Department of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
| | - Patricia P Wadowski
- Division of Angiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria
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Liu J, Chen L, Zheng X, Guo C. Identification of immune-related genes in acute myocardial infarction based on integrated bioinformatical methods and experimental verification. PeerJ 2023; 11:e15058. [PMID: 37214088 PMCID: PMC10198157 DOI: 10.7717/peerj.15058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/22/2023] [Indexed: 05/24/2023] Open
Abstract
Background Acute myocardial infarction (AMI) is one of the leading causes of death worldwide. The etiology of AMI is complex and has not been fully defined. In recent years, the role of immune response in the development, progression and prognosis of AMI has received increasing attention. The aim of this study was to identify key genes associated with the immune response in AMI and to analyze their immune infiltration. Methods The study included a total of two GEO databases, containing 83 patients with AMI and 54 healthy individuals. We used the linear model of microarray data (limma) package to find the differentially expressed genes associated with AMI, performing weighted gene co-expression analysis (WGCNA) to further identify the genes associated with inflammatory response to AMI. We found the final hub genes through the protein-protein interaction (PPI) network and least absolute shrinkage and selection operator (LASSO) regression model. To verify the above conclusions, we constructed mice AMI model, extracting myocardial tissue to perform qRT-PCR. Furthermore, the CIBERSORT tool for immune cells infiltration analysis was also carried out. Results A total of 5,425 significant up-regulated and 2,126 down-regulated genes were found in GSE66360 and GSE24519. A total of 116 immune-related genes in close association with AMI were screened by WGCNA analysis. These genes were mostly clustered in the immune response on the basis of GO and KEGG enrichment. With construction of PPI network and LASSO regression analysis, this research found three hub genes (SOCS2, FFAR2, MYO10) among these differentially expressed genes. The immune cell infiltration results revealed that significant differences could be found on T cells CD4 memory activated, Tregs (regulatory T cells), macrophages M2, neutrophils, T cells CD8, T cells CD4 naive, eosinophils between controls and AMI patients.
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Affiliation(s)
- Jian Liu
- Cardiovascular Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Lu Chen
- Cardiovascular Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Xiang Zheng
- Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Caixia Guo
- Cardiovascular Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
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Wu H, Xiong X, CUI X, Xiong J, Zhang Y, Xiang L, Xu TAO. Analysis of the influence of pyroptosis-related genes on molecular characteristics in patients with acute myocardial infarction. Medicine (Baltimore) 2023; 102:e33620. [PMID: 37083810 PMCID: PMC10118340 DOI: 10.1097/md.0000000000033620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 04/04/2023] [Indexed: 04/22/2023] Open
Abstract
Pyroptosis is a newly identified mode of programmed cell death, but the potential role in patients with acute myocardial infarction (AMI) remains unclear. In this study, bioinformatics methods were used to identify differentially expressed genes from peripheral blood transcriptome data between normal subjects and patients with AMI which were downloaded by the Gene Expression Omnibus database. Comparing Random Forest (RF) and Support Vector Machine (SVM) training algorithms were used to identify pyroptosis-related genes, predicting patients with AMI by nomogram based on informative genes. Moreover, clustering was used to amplify the feature of pyroptosis, in order to facilitate analysis distinct biological differences. Diversity analysis indicated that a majority of pyroptosis-related genes are expressed at higher levels in patients with AMI. The receiver operating characteristic curves show that the RF model is more responsive than the SVM machine learning model to the pyroptosis characteristics of these patients in vivo. We obtained a column line graph diagnostic model which was developed based on 19 genes established by the RF model. After the consensus clustering algorithm of single sample Gene Set Enrichment Analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) Enrichment Analysis, the results for them found that pyroptosis-related genes mediate the activation of multiple immune cells and many inflammatory pathways in the body. We used RF and SVM algorithms to determine 19 pyroptosis-related genes and evaluate their immunological effects in patients with AMI. We also constructed a series of by nomogram related to pyroptosis-related genes to predict the risk of developing AMI.
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Affiliation(s)
- Huan Wu
- School of Preclinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Xiaoman Xiong
- School of Preclinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Xueying CUI
- Qingyun County People’s Hospital, Qingyun, Shandong, China
| | - Jianlong Xiong
- School of Preclinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Yan Zhang
- School of Preclinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Liubo Xiang
- School of Preclinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - TAO Xu
- School of Preclinical Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
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Tang X, Xu Q, Yang S, Huang X, Wang L, Huang F, Luo J, Zhou X, Wu A, Mei Q, Zhao C, Wu J. Toll-like Receptors and Thrombopoiesis. Int J Mol Sci 2023; 24:ijms24021010. [PMID: 36674552 PMCID: PMC9864288 DOI: 10.3390/ijms24021010] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Platelets are the second most abundant blood component after red blood cells and can participate in a variety of physiological and pathological functions. Beyond its traditional role in hemostasis and thrombosis, it also plays an indispensable role in inflammatory diseases. However, thrombocytopenia is a common hematologic problem in the clinic, and it presents a proportional relationship with the fatality of many diseases. Therefore, the prevention and treatment of thrombocytopenia is of great importance. The expression of Toll-like receptors (TLRs) is one of the most relevant characteristics of thrombopoiesis and the platelet inflammatory function. We know that the TLR family is found on the surface or inside almost all cells, where they perform many immune functions. Of those, TLR2 and TLR4 are the main stress-inducing members and play an integral role in inflammatory diseases and platelet production and function. Therefore, the aim of this review is to present and discuss the relationship between platelets, inflammation and the TLR family and extend recent research on the influence of the TLR2 and TLR4 pathways and the regulation of platelet production and function. Reviewing the interaction between TLRs and platelets in inflammation may be a research direction or program for the treatment of thrombocytopenia-related and inflammatory-related diseases.
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Affiliation(s)
- Xiaoqin Tang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Qian Xu
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Shuo Yang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Xinwu Huang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Feihong Huang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Jiesi Luo
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Xiaogang Zhou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Qibing Mei
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Chunling Zhao
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
- Correspondence: (C.Z.); (J.W.); Tel.: +86-186-8307-3667 (C.Z.); +86-139-8241-6641 (J.W.)
| | - Jianming Wu
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
- Correspondence: (C.Z.); (J.W.); Tel.: +86-186-8307-3667 (C.Z.); +86-139-8241-6641 (J.W.)
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Zhu Y, He H, Qiu H, Shen G, Wang Z, Li W. Prognostic Value of Systemic Immune-Inflammation Index and NT-proBNP in Patients with Acute ST-Elevation Myocardial Infarction. Clin Interv Aging 2023; 18:397-407. [PMID: 36959838 PMCID: PMC10029373 DOI: 10.2147/cia.s397614] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/12/2023] [Indexed: 03/18/2023] Open
Abstract
Objective Our aim was to assess systemic immune-inflammation index (SII) and NT-proBNP value either in singly or in combination to predict acute ST-elevation myocardial infarction (STEMI) patient prognosis. Methods Analyzed retrospectively the clinical features and laboratory data of STEMI confirmed patients in our hospital from January to December 2020. The levels of SII and NT-proBNP were detected. The Kaplan-Meier approach and Spearman's rank correlation coefficient were used to construct the overall major adverse cardiac event (MACE) curve. Multivariate Cox regression analysis was applied to detect MACE predictors. In addition, the Delong test and receiver operating characteristic (ROC) curve analyzed each factor performance on its own and composite multivariate index to predict MACEs. Results The MACE group showed statistically significant differences in SII, NT- proBNP in comparison to the non-MACE group (P=0.003, P <0.001). Based on Kaplan-Meier analysis, SII and NT-proBNP showed positive correlation with MACE (log-rank P < 0.001). SII and NT-proBNP were independent predicting factors for long-term MACEs in multivariate Cox regression analysis (P <0.001, HR: 2.952, 95% CI 1.565-5.566; P <0.001, HR: 2.112, 95% CI 1.662-2.683). SII and NT-proBNP exhibited a positive correlation (R = 0.187, P < 0.001) in correlation analysis. According to the ROC statistical analysis, the combination exhibited 78.0% sensitivity and 88.0% specificity in the prediction of MACE. According to the results of the AUC and Delong test, the combined SII and NT-proBNP performed better as a prognostic index than each of the individual factor indexes separately (Z = 2.622, P = 0.009; Z = 3.173, P < 0.001). Conclusion SII and NT-proBNP were independent indicators of clinical prognosis in acute STEMI patients, and they correlated positively. These factors could be combined to improve clinical prognosis.
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Affiliation(s)
- Yinghua Zhu
- Institute of Cardiovascular Diseases, Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Haiyan He
- Department of Cardiology, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Hang Qiu
- Institute of Cardiovascular Diseases, Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Guoqi Shen
- Institute of Cardiovascular Diseases, Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Zhen Wang
- Institute of Cardiovascular Diseases, Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Wenhua Li
- Institute of Cardiovascular Diseases, Xuzhou Medical University, Xuzhou, People’s Republic of China
- Department of Cardiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, People’s Republic of China
- Correspondence: Wenhua Li, Department of Cardiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, People’s Republic of China, Tel +86 18052268293, Email
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Wang H, Zhang B, Zhong X, Qin D, Li Z. Mechanism Research of Platelet Core Marker Prediction and Molecular Recognition in Cardiovascular Events. Comb Chem High Throughput Screen 2023; 26:103-115. [PMID: 35345996 DOI: 10.2174/1386207325666220328091748] [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: 10/14/2021] [Revised: 01/17/2022] [Accepted: 01/27/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Thrombosis triggered by platelet activation plays a vital role in the pathogenesis of cardiovascular and cerebrovascular diseases. OBJECTIVE This study aims to find platelet combined biomarkers for cardiovascular diseases and investigate the possibility of Concanavalin A (ConA) acting on platelets as a new pharmacological target. METHODS High-throughput Technology and bioinformatics analysis were combined and groups of microarray chip gene expression profiles for acute myocardial infarction (AMI) and sickle cell disease (SCD) were obtained using GEO database screening. R language limma package was used to obtain differentially expressed genes (DEGs). GO, KEGG, and other databases were utilized to perform the enrichment analysis of DEGs' functions, pathways, etc. PPI network was constructed using STRING database and Cytoscape software, and MCC algorithm was used to obtain the 200 core genes of the two groups of DEGs. Core targets were confirmed by constructing an intersection area screening. A type of molecular probe, ConA, was molecularly docked with the above core targets on the Zdock, HEX, and 3D-DOCK servers. RESULTS We found six core markers, CD34, SOCS2, ABL1, MTOR, VEGFA, and SMURF1, which were simultaneously related to both diseases, and the docking effect showed that VEGFA is the best-performing. CONCLUSION VEGFA is most likely to reduce its expression by binding to ConA, which could affect the downstream regulation of the PI3K/Akt signaling pathway during platelet activation. Some other core targets also have the opportunity to interact with ConA to affect platelet-activated thrombosis and trigger changes in cardiovascular events.
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Affiliation(s)
- Hongdan Wang
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, College of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Bingyu Zhang
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, College of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Xianhua Zhong
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, College of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Dui Qin
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, College of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Zhangyong Li
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, College of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
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Li MJ, Yan SB, Dong H, Huang ZG, Li DM, Tang YL, Pan YF, Yang Z, Pan HB, Chen G. Clinical assessment and molecular mechanism of the upregulation of Toll-like receptor 2 (TLR2) in myocardial infarction. BMC Cardiovasc Disord 2022; 22:314. [PMID: 35840880 PMCID: PMC9287878 DOI: 10.1186/s12872-022-02754-y] [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: 01/18/2022] [Accepted: 07/08/2022] [Indexed: 08/30/2023] Open
Abstract
Objective The prevalence and mortality of cardiovascular diseases remain ranked first worldwide. Myocardial infarction (MI) is the central cause of death from cardiovascular diseases, seriously endangering human health. The clinical implication of toll-like receptor 2 (TLR2) remains contradictory, and its mechanism is still unknown. Hence, the objective of this study was to elucidate the clinical value and molecular mechanism of TLR2 in MI. Methods All high-throughput datasets and eligible literature were screened, and the expression levels of TLR2 were collected from the MI. The integrated expression level of TLR2 was displayed by calculating the standardized mean difference (SMD) and the area under the curve (AUC) of the summary receiver operating characteristic curve (sROC). The related TLR2 genes were sent for pathway analyses by gene ontology (GO), Kyoto encyclopedia of genes and genome (KEGG), and disease ontology (DO). Single-cell RNA-seq was applied to ascertain the molecular mechanism of TLR2 in MI. Results Nine microarrays and four reported data were available to calculate the comprehensive expression level of TLR2 in MI, including 325 cases of MI and 306 cases of controls. The SMD was 2.55 (95% CI = 1.35–3.75), and the AUC was 0.76 (95% CI = 0.72–0.79), indicating the upregulation of TLR2 in MI. The related TLR2 genes were primarily enriched in the pathways of atherosclerosis, arteriosclerotic cardiovascular disease, and arteriosclerosis, suggesting the clinical role of TLR2 in the progression of MI. Afterward, TLR2 was upregulated in myeloid cells in MI. Conclusions TLR2 may have a crucial role in progressing from coronary atherosclerosis to MI. The upregulation of TLR2 may have a favorable screening value for MI. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-022-02754-y.
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Affiliation(s)
- Ming-Jie Li
- Department of Pathology/Forensic Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Shi-Bai Yan
- Department of Pathology/Forensic Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Hao Dong
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Zhi-Guang Huang
- Department of Pathology/Forensic Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Dong-Ming Li
- Department of Pathology/Forensic Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yu-Lu Tang
- Department of Pathology/Forensic Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yan-Fang Pan
- Department of Pathology, Hospital of Guangxi Liugang Medical Co., LTD./Guangxi Liuzhou Dingshun Forensic Expert Institute, No. 9, Queershan Rd, Liuzhou, 545002, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Zhen Yang
- Department of Gerontology, NO. 923 Hospital of Chinese People's Liberation Army, No. 1 Tangcheng Rd, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Hong-Bo Pan
- Department of Pathology/Forensic Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Gang Chen
- Department of Pathology/Forensic Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China.
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The Yin and Yang of toll-like receptors in endothelial dysfunction. Int Immunopharmacol 2022; 108:108768. [DOI: 10.1016/j.intimp.2022.108768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/01/2022] [Accepted: 04/07/2022] [Indexed: 11/24/2022]
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Wu Y, Jiang T, Hua J, Xiong Z, Chen H, Li L, Peng J, Xiong W. Integrated Bioinformatics-Based Analysis of Hub Genes and the Mechanism of Immune Infiltration Associated With Acute Myocardial Infarction. Front Cardiovasc Med 2022; 9:831605. [PMID: 35463752 PMCID: PMC9019083 DOI: 10.3389/fcvm.2022.831605] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/28/2022] [Indexed: 11/20/2022] Open
Abstract
Background Acute myocardial infarction (AMI) is a fatal disease that causes high morbidity and mortality. It has been reported that AMI is associated with immune cell infiltration. Now, we aimed to identify the potential diagnostic biomarkers of AMI and uncover the immune cell infiltration profile of AMI. Methods From the Gene Expression Omnibus (GEO) data set, three data sets (GSE48060, GSE60993, and GSE66360) were downloaded. Differentially expressed genes (DEGs) from AMI and healthy control samples were screened. Furthermore, DEGs were performed via gene ontology (GO) functional and kyoto encyclopedia of genes and genome (KEGG) pathway analyses. The Gene set enrichment analysis (GSEA) was used to analyze GO terms and KEGG pathways. Utilizing the Search Tool for Retrieval of Interacting Genes/Proteins (STRING) database, a protein–protein interaction (PPI) network was constructed, and the hub genes were identified. Then, the receiver operating characteristic (ROC) curves were constructed to analyze the diagnostic value of hub genes. And, the diagnostic value of hub genes was further validated in an independent data set GSE61144. Finally, CIBERSORT was used to represent the compositional patterns of the 22 types of immune cell fractions in AMI. Results A total of 71 DEGs were identified. These DEGs were mainly enriched in immune response and immune-related pathways. Toll-like receptor 2 (TLR2), interleukin-1B (IL1B), leukocyte immunoglobulin-like receptor subfamily B2 (LILRB2), Fc fragment of IgE receptor Ig (FCER1G), formyl peptide receptor 1 (FPR1), and matrix metalloproteinase 9 (MMP9) were identified as diagnostic markers with the value of p < 0.05. Also, the immune cell infiltration analysis indicated that TLR2, IL1B, LILRB2, FCER1G, FPR1, and MMP9 were correlated with neutrophils, monocytes, resting natural killer (NK) cells, gamma delta T cells, and CD4 memory resting T cells. The fractions of monocytes and neutrophils were significantly higher in AMI tissues than in control tissues. Conclusion TLR2, IL1B, LILRB2, FCER1G, FPR1, and MMP9 are involved in the process of AMI, which can be used as molecular biomarkers for the screening and diagnosis of AMI. In addition, the immune system plays a vital role in the occurrence and progression of AMI.
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Affiliation(s)
- Yanze Wu
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Ting Jiang
- Department Hospital Infection Control, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jinghai Hua
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhiping Xiong
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hui Chen
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lei Li
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jingtian Peng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wenjun Xiong
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- *Correspondence: Wenjun Xiong,
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Factors Associated with Platelet Activation-Recent Pharmaceutical Approaches. Int J Mol Sci 2022; 23:ijms23063301. [PMID: 35328719 PMCID: PMC8955963 DOI: 10.3390/ijms23063301] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 02/06/2023] Open
Abstract
Platelets are at the forefront of human health and disease following the advances in their research presented in past decades. Platelet activation, their most crucial function, although beneficial in the case of vascular injury, may represent the initial step for thrombotic complications characterizing various pathologic states, primarily atherosclerotic cardiovascular diseases. In this review, we initially summarize the structural and functional characteristics of platelets. Next, we focus on the process of platelet activation and its associated factors, indicating the potential molecular mechanisms involving inflammation, endothelial dysfunction, and miRs. Finally, an overview of the available antiplatelet agents is being portrayed, together with agents possessing off-set platelet-inhibitory actions, while an extensive presentation of drugs under investigation is being given.
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11
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Yin X, Wang X, Wang S, Xia Y, Chen H, Yin L, Hu K. Screening for Regulatory Network of miRNA–Inflammation, Oxidative Stress and Prognosis-Related mRNA in Acute Myocardial Infarction: An in silico and Validation Study. Int J Gen Med 2022; 15:1715-1731. [PMID: 35210840 PMCID: PMC8863347 DOI: 10.2147/ijgm.s354359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/24/2022] [Indexed: 12/14/2022] Open
Abstract
Background Acute myocardial infarction (AMI), which commonly leads to heart failure, is among the leading causes of mortality worldwide. The aim of this study was to find potential regulatory network for miRNA-inflammation, oxidative stress and prognosis-related mRNA to uncover molecular mechanisms of AMI. Methods The expression profiles of miRNA and mRNA in the blood samples from AMI patients were downloaded from the Gene Expression Omnibus (GEO) dataset for differential expression analysis. Weighted gene co-expression network analysis (WGCNA) was used to further identify important mRNAs. The negatively regulatory network construction of miRNA–inflammation, oxidative stress and prognosis-related mRNAs was performed, followed by protein–protein interaction (PPI) and functional analysis of mRNAs. Results A total of three pairs of negatively regulatory network of miRNA–inflammation and prognosis-related mRNAs (hsa-miR-636/hsa-miR-491-3p/hsa-miR-188-5p/hsa-miR-188-3p-AQP9, hsa-miR-518a-3p-C5AR1 and hsa-miR-509-3-5p/hsa-miR-127-5p-PLAUR), two pairs of negatively regulatory network of miRNA–oxidative stress and prognosis-related mRNAs (hsa-miR-604-TLR4 and hsa-miR-139-5p-CXCL1) and three pairs of negatively regulatory network of miRNA-inflammation, oxidative stress and prognosis-related mRNA (hsa-miR-634/hsa-miR-591-TLR2, hsa-miR-938-NFKBIA and hsa-miR-520h/hsa-miR-450b-3p-ADM) were identified. In the KEGG analysis, some signaling pathways were identified, such as complement and coagulation cascades, pathogenic Escherichia coli infection, chemokine signaling pathway and cytokine–cytokine receptor interaction and Toll-like receptor signaling pathway. Conclusion Identified negatively regulatory network of miRNA-inflammation/oxidative stress and prognosis-related mRNA may be involved in the process of AMI. Those inflammation/oxidative stress and prognosis-related mRNAs may be diagnostic and prognostic biomarkers for AMI.
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Affiliation(s)
- Xunli Yin
- Department of Cardiovascular Medicine, The Seventh People’s Hospital of Jinan, Jinan, 250100, People’s Republic of China
| | - Xuebing Wang
- Department of Cardiovascular Medicine, The Seventh People’s Hospital of Jinan, Jinan, 250100, People’s Republic of China
| | - Shiai Wang
- Department of Cardiovascular Medicine, The Seventh People’s Hospital of Jinan, Jinan, 250100, People’s Republic of China
| | - Youwei Xia
- Department of Critical Care Medicine, The Seventh People’s Hospital of Jinan, Jinan, 250100, People’s Republic of China
| | - Huihui Chen
- Department of Cardiovascular Medicine, The Seventh People’s Hospital of Jinan, Jinan, 250100, People’s Republic of China
| | - Ling Yin
- Department of Conduit Room, The Seventh People’s Hospital of Jinan, Jinan, 250100, People’s Republic of China
| | - Keqing Hu
- Cardiovascular Department, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, People's Republic of China
- Correspondence: Keqing Hu, Central Hospital Affiliated to Shandong First Medical University, Cardiovascular Department,105#, Jiefang Road, Jinan 250013, Shandong, China, Tel +86 0531-85695114, Fax +86 0531-86942457 Email
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12
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Barillà F, Cammisotto V, Bartimoccia S, Loffredo L, Nocella C, Bruno N, Torromeo C, Rosa P, Viceconte N, Pignatelli P, Gaudio C, Carnevale R, Violi F. Toll-like receptor 4 activation in platelets from myocardial infarction patients. Thromb Res 2021; 209:33-40. [PMID: 34856494 DOI: 10.1016/j.thromres.2021.11.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/25/2021] [Accepted: 11/18/2021] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Platelet toll-like receptor 4 (TLR4) is overexpressed in patients with myocardial infarction (MI) but it remains to elucidate if it is activated and the potential trigger. METHODS Serum levels of lipopolysaccharides (LPS) and platelet aggregation (PA) by collagen alone or in combination with a TLR4 inhibitor (TLR4i) were studied ex vivo in platelets from 40 MI patients and 40 controls matched for age, sex and atherosclerotic risk factors; platelet TIR domain-containing adaptor protein (TIRAP) and TIRAP-MyD88 interaction were also investigated by western blot and co-immunoprecipitation, respectively. In vitro experiments were conducted to see if LPS triggers platelet TIRAP phosphorylation. RESULTS Serum LPS was significantly higher in patients compared to controls (29.5±7.1 vs 16.2±3.8 pg/mL; p<0.001). Collagen-stimulated platelets from MI pre-treated with TLR4i showed a significant decrease of PA compared to platelets stimulated with collagen. Ex vivo study showed that TIRAP phosphorylation as well as TIRAP-MyD88 co-immunoprecipitation were higher in patients compared to controls. In vitro study showed that LPS, at concentrations like those found in MI, dose-dependently activated TIRAP and amplified the platelet response to the agonist, an effect blunted by TLR4i. CONCLUSION The study provides evidence that in MI patients platelet TLR4 is activated and suggests circulating LPS as potential trigger.
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Affiliation(s)
- Francesco Barillà
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Vittoria Cammisotto
- Department of General Surgery and Surgical Speciality Paride Stefanini, Sapienza University of Rome, Rome, Italy.
| | - Simona Bartimoccia
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Italy.
| | - Lorenzo Loffredo
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Cristina Nocella
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Noemi Bruno
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Concetta Torromeo
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Paolo Rosa
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Italy
| | - Nicola Viceconte
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Pasquale Pignatelli
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy; Mediterranea Cardiocentro, Napoli, Italy.
| | - Carlo Gaudio
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
| | - Roberto Carnevale
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Italy; Mediterranea Cardiocentro, Napoli, Italy.
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13
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Inflammatory Mediators of Platelet Activation: Focus on Atherosclerosis and COVID-19. Int J Mol Sci 2021; 22:ijms222011170. [PMID: 34681830 PMCID: PMC8539848 DOI: 10.3390/ijms222011170] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/09/2021] [Accepted: 10/15/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Atherosclerotic cardiovascular diseases are characterized by a dysregulated inflammatory and thrombotic state, leading to devastating complications with increased morbidity and mortality rates. Summary: In this review article, we present the available evidence regarding the impact of inflammation on platelet activation in atherosclerosis. Key messages: In the context of a dysfunctional vascular endothelium, structural alterations by means of endothelial glycocalyx thinning or functional modifications through impaired NO bioavailability and increased levels of von Willebrand factor result in platelet activation. Moreover, neutrophil-derived mediators, as well as neutrophil extracellular traps formation, have been implicated in the process of platelet activation and platelet-leukocyte aggregation. The role of pro-inflammatory cytokines is also critical since their receptors are also situated in platelets while TNF-α has also been found to induce inflammatory, metabolic, and bone marrow changes. Additionally, important progress has been made towards novel concepts of the interaction between inflammation and platelet activation, such as the toll-like receptors, myeloperoxidase, and platelet factor-4. The accumulating evidence is especially important in the era of the coronavirus disease-19 pandemic, characterized by an excessive inflammatory burden leading to thrombotic complications, partially mediated by platelet activation. Lastly, recent advances in anti-inflammatory therapies point towards an anti-thrombotic effect secondary to diminished platelet activation.
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14
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Parra-Izquierdo I, Lakshmanan HHS, Melrose AR, Pang J, Zheng TJ, Jordan KR, Reitsma SE, McCarty OJT, Aslan JE. The Toll-Like Receptor 2 Ligand Pam2CSK4 Activates Platelet Nuclear Factor-κB and Bruton's Tyrosine Kinase Signaling to Promote Platelet-Endothelial Cell Interactions. Front Immunol 2021; 12:729951. [PMID: 34527000 PMCID: PMC8435771 DOI: 10.3389/fimmu.2021.729951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/12/2021] [Indexed: 12/24/2022] Open
Abstract
Circulating platelets establish a variety of immunological programs and orchestrate inflammatory responses at the endothelium. Platelets express the innate immunity family of Toll-like receptors (TLRs). While TLR2/TLR1 ligands are known to activate platelets, the effects of TLR2/TLR6 ligands on platelet function remain unclear. Here, we aim to determine whether the TLR2/TLR6 agonists Pam2CSK4 and FSL-1 activate human platelets. In addition, human umbilical vein endothelial cells (HUVECs) and platelets were co-cultured to analyze the role of platelet TLR2/TLR6 on inflammation and adhesion to endothelial cells. Pam2CSK4, but not FSL-1, induced platelet granule secretion and integrin αIIbβ3 activation in a concentration-dependent manner. Moreover, Pam2CSK4 promoted platelet aggregation and increased platelet adhesion to collagen-coated surfaces. Mechanistic studies with blocking antibodies and pharmacologic inhibitors demonstrated that the TLR2/Nuclear factor-κB axis, Bruton’s-tyrosine kinase, and a secondary ADP feedback loop are involved in Pam2CSK4-induced platelet functional responses. Interestingly, Pam2CSK4 showed cooperation with immunoreceptor tyrosine-based activation motif (ITAM)-mediated signaling to enhance platelet activation. Finally, the presence of platelets increased inflammatory responses in HUVECs treated with Pam2CSK4, and platelets challenged with Pam2CSK4 showed increased adhesion to HUVECs under static and physiologically relevant flow conditions. Herein, we define a functional role for platelet TLR2-mediated signaling, which may represent a druggable target to dampen excessive platelet activation in thrombo-inflammatory diseases.
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Affiliation(s)
- Iván Parra-Izquierdo
- Knight Cardiovascular Institute and Division of Cardiology, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Hari Hara Sudhan Lakshmanan
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Alexander R Melrose
- Knight Cardiovascular Institute and Division of Cardiology, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Jiaqing Pang
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Tony J Zheng
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Kelley R Jordan
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Stéphanie E Reitsma
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Owen J T McCarty
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Division of Hematology and Medical Oncology, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Joseph E Aslan
- Knight Cardiovascular Institute and Division of Cardiology, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Department of Chemical Physiology and Biochemistry, School of Medicine, Oregon Health & Science University, Portland, OR, United States
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15
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Fard MB, Fard SB, Ramazi S, Atashi A, Eslamifar Z. Thrombosis in COVID-19 infection: Role of platelet activation-mediated immunity. Thromb J 2021; 19:59. [PMID: 34425822 PMCID: PMC8380864 DOI: 10.1186/s12959-021-00311-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 08/10/2021] [Indexed: 01/08/2023] Open
Abstract
Background Thrombosis plays an important role in the Coronavrus Disease 2019 (COVID-19) infection-related complications such as acute respiratory distress syndrome and myocardial infarction. Multiple factors such as oxygen demand injuries, endothelial cells injury related to infection, and plaque formation. Main body Platelets obtained from the patients may have severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA, showing that the increased activation potential recommends platelet can be hyper-activated in severely ill SARS-CoV-2 cases. Platelets contain multiple receptors that interact with specific ligands. Pathogen’s receptors such as Toll-like receptors (TLRs), NOD-like receptor, C-type lectin receptor family, glycoprotein (GP) such as GPαIIbβ3 and GPIbα which allow pathogens to interact with platelets. Platelet TLRs and NOD2 are involved in platelet activation and thrombosis. Accordingly, TLRs are critical receptors that could recognize various endogenous damage-associated molecular patterns and exogenous pathogen-associated molecular patterns (PAMPs). TLRs are considered as important components in the activation of innate immunity response against pathogenic and non-pathogenic components like damaged tissues. TLRs-1,-2,-4,-6,-7 expression on or within platelets has been reported previously. Various PAMPs were indicated to be capable of binding to platelet-TLRs and inducing both the activation and promotion of downstream proinflammatory signaling cascade. Conclusion It is possible that the increased TLRs expression and TLR-mediated platelets activation during COVID-19 may enhance vascular and coronary thrombosis. It may be hypothesized using TLRs antagonist and monoclonal antibody against P-selectin, as the marker of leukocyte recruitment and platelet activation, besides viral therapy provide therapeutic advances in fighting against the thrombosis related complications in COVID-19.
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Affiliation(s)
| | | | - Shahin Ramazi
- Department of biophysics, faculty of biological sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Atashi
- Stem cell and tissue engineering research center, Shahroud university of medical sciences, Shahroud, Iran
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16
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Val‐Blasco A, Gil‐Fernández M, Rueda A, Pereira L, Delgado C, Smani T, Ruiz Hurtado G, Fernández‐Velasco M. Ca 2+ mishandling in heart failure: Potential targets. Acta Physiol (Oxf) 2021; 232:e13691. [PMID: 34022101 DOI: 10.1111/apha.13691] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 12/14/2022]
Abstract
Ca2+ mishandling is a common feature in several cardiovascular diseases such as heart failure (HF). In many cases, impairment of key players in intracellular Ca2+ homeostasis has been identified as the underlying mechanism of cardiac dysfunction and cardiac arrhythmias associated with HF. In this review, we summarize primary novel findings related to Ca2+ mishandling in HF progression. HF research has increasingly focused on the identification of new targets and the contribution of their role in Ca2+ handling to the progression of the disease. Recent research studies have identified potential targets in three major emerging areas implicated in regulation of Ca2+ handling: the innate immune system, bone metabolism factors and post-translational modification of key proteins involved in regulation of Ca2+ handling. Here, we describe their possible contributions to the progression of HF.
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Affiliation(s)
| | | | - Angélica Rueda
- Department of Biochemistry Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV‐IPN) México City Mexico
| | - Laetitia Pereira
- INSERM UMR‐S 1180 Laboratory of Ca Signaling and Cardiovascular Physiopathology University Paris‐Saclay Châtenay‐Malabry France
| | - Carmen Delgado
- Instituto de Investigaciones Biomédicas Alberto Sols Madrid Spain
- Department of Metabolism and Cell Signalling Biomedical Research Institute "Alberto Sols" CSIC‐UAM Madrid Spain
| | - Tarik Smani
- Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBERCV) Madrid Spain
- Department of Medical Physiology and Biophysics University of Seville Seville Spain
- Group of Cardiovascular Pathophysiology Institute of Biomedicine of Seville University Hospital of Virgen del Rocío, University of Seville, CSIC Seville Spain
| | - Gema Ruiz Hurtado
- Cardiorenal Translational Laboratory Institute of Research i+12 University Hospital 12 de Octubre Madrid Spain
- CIBER‐CV University Hospita1 12 de Octubre Madrid Spain
| | - Maria Fernández‐Velasco
- La Paz University Hospital Health Research Institute IdiPAZ Madrid Spain
- Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBERCV) Madrid Spain
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17
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Xiao S, Zhou Y, Wu Q, Liu Q, Chen M, Zhang T, Zhu H, Liu J, Yin T, Pan D. FCER1G and PTGS2 Serve as Potential Diagnostic Biomarkers of Acute Myocardial Infarction Based on Integrated Bioinformatics Analyses. DNA Cell Biol 2021; 40:1064-1075. [PMID: 34115526 DOI: 10.1089/dna.2020.6447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
This study aimed to explore the potential diagnostic biomarkers and mechanisms underlying acute myocardial infarction (AMI). We downloaded four datasets (GSE19339, GSE48060, GSE66360, and GSE97320) from the Gene Expression Omnibus database and combined them as an integrated dataset. A total of 153 differentially expressed genes (DEGs) were analyzed by the linear models for microarray analysis (LIMMA) package. Weighted gene co-expression network analysis was used to screen for the significant gene modules. The intersection of DEGs and genes in the most significant module was termed "common genes" (CGs). CGs were mainly enriched in "inflammatory response," "neutrophil chemotaxis," and "IL-17 signaling pathway" through functional enrichment analyses. Subsequently, 15 genes were identified as the hub genes in the protein-protein interaction network. The Fc fragment of IgE receptor Ig (FCER1G) and prostaglandin-endoperoxide synthase 2 (PTGS2) showed significantly increased expression in AMI patients and mice at the 12-h time point in our experiments. The receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value of FCER1G and PTGS2. The area under ROC curve of FCER1G and PTGS2 was 77.6% and 80.7%, respectively. Moreover, the micro (mi)RNA-messenger (m)RNA network was also visualized; the results showed that miRNA-143, miRNA-144, and miRNA-26 could target PTGS2 in AMI progression.
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Affiliation(s)
- Shengjue Xiao
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yufei Zhou
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qi Wu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qiaozhi Liu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Mengli Chen
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tiantian Zhang
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hong Zhu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jie Liu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ting Yin
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Defeng Pan
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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18
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Hua F, Zhou P, Liu PP, Bao GH. Rat plasma protein binding of kaempferol-3-O-rutinoside from Lu'an GuaPian tea and its anti-inflammatory mechanism for cardiovascular protection. J Food Biochem 2021; 45:e13749. [PMID: 34041764 DOI: 10.1111/jfbc.13749] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/11/2022]
Abstract
Previous study found a high content of kaempferol-3-O-rutinoside (KR) in Lu'an GuaPian tea, however, the rat plasma protein binding and mechanism of KR for cardiovascular protection are unclear. Thus, we studied plasma protein binding using ultrafiltration followed by UPLC, and screened its inhibition against LPS-induced inflammation injury in vitro as well as the underlying mechanism by molecular docking and western blot. KR showed over 74% plasma protein binding ratio. Furthermore, KR may act on the toll-like receptor 4 (TLR4) and myeloid differentiation factor 88 (MyD88). In vitro experiments showed that KR decreases the overexpression of TLR4, MyD88, and nuclear factor-κB (NF-κB), which further validates the molecular docking results, suggesting that KR could block TLR4/MyD88/NF-κB signaling. These results indicate that KR could be a potential active agent in the protection of myocardial injury. PRACTICAL APPLICATIONS: Health benefits of tea are largely dependent on the intake of flavonoids. Flavonoids are a group of compounds beneficial to cardiovascular disease and an important part of "functional foods." Lu'an GuaPian tea is mainly produced in Lu'an City, Anhui Province and is one of the top 10 famous teas in China. Kaempferol-3-O-rutinoside in Lu'an GuaPian has good hypoglycemic effect, mainly manifested in a strong inhibition of α-glucosidase and α-amylase activities. Present study showed that kaempferol-3-O-rutinoside could block TLR4/MyD88/NF-κB signaling, suggesting that it could be a potential active agent in the protection of myocardial injury.
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Affiliation(s)
- Fang Hua
- Natural Products Laboratory, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China.,School of Pharmacy, Anhui Xinhua University, Hefei, China
| | - Peng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Pei-Pei Liu
- Department of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Guan-Hu Bao
- Natural Products Laboratory, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
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19
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Zaslavsky A, Adams M, Cao X, Yamaguchi A, Henderson J, Busch-Østergren P, Udager A, Pitchiaya S, Tourdot B, Kasputis T, Church SJ, Lee SK, Ohl S, Patel S, Morgan TM, Alva A, Wakefield TW, Reichert Z, Holinstat M, Palapattu GS. Antisense oligonucleotides and nucleic acids generate hypersensitive platelets. Thromb Res 2021; 200:64-71. [PMID: 33540294 DOI: 10.1016/j.thromres.2021.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 12/07/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Despite the great promise for therapies using antisense oligonucleotides (ASOs), their adverse effects, which include pro-inflammatory effects and thrombocytopenia, have limited their use. Previously, these effects have been linked to the phosphorothioate (PS) backbone necessary to prevent rapid ASO degradation in plasma. The main aim of this study was to assess the impact of the nucleic acid portion of an ASO-type drug on platelets and determine if it may contribute to thrombosis or thrombocytopenia. METHODS Platelets were isolated from healthy donors and men with advanced prostate cancer. Effects of antisense oligonucleotides (ASO), oligonucleotides, gDNA, and microRNA on platelet activation and aggregation were evaluated. A mouse model of lung thrombosis was used to confirm the effects of PS-modified oligonucleotides in vivo. RESULTS Platelet exposure to gDNA, miRNA, and oligonucleotides longer than 16-mer at a concentration above 8 mM resulted in the formation of hypersensitive platelets, characterized by an increased sensitivity to low-dose thrombin (0.1 nM) and increase in p-Selectin expression (6-8 fold greater than control; p < 0.001). The observed nucleic acid (NA) effects on platelets were toll-like receptor (TLR) -7 subfamily dependent. Injection of a p-Selectin inhibitor significantly (p = 0.02) reduced the formation of oligonucleotide-associated pulmonary microthrombosis in vivo. CONCLUSION Our results suggest that platelet exposure to nucleic acids independent of the presence of a PS modification leads to a generation of hypersensitive platelets and requires TLR-7 subfamily receptors. ASO studies conducted in cancer patients may benefit from testing the ASO effects on platelets ex vivo before initiation of patient treatment.
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Affiliation(s)
- Alexander Zaslavsky
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Mackenzie Adams
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Xiu Cao
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Adriana Yamaguchi
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - James Henderson
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | | | - Aaron Udager
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Sethuramasundaram Pitchiaya
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Pathology, University of Michigan, Ann Arbor, MI, USA; Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Benjamin Tourdot
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Tadas Kasputis
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Samuel J Church
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Samantha K Lee
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Sydney Ohl
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Shivam Patel
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Todd M Morgan
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Ajjai Alva
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Internal Medicine-Division of Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Thomas W Wakefield
- Section of Vascular Surgery, Department of Surgery, Conrad Jobst Vascular Research Laboratories, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Zachery Reichert
- Department of Internal Medicine-Division of Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Michael Holinstat
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Ganesh S Palapattu
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Urology, Medical University of Vienna, Vienna, Austria.
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Identification of Key Genes Involved in Acute Myocardial Infarction by Comparative Transcriptome Analysis. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1470867. [PMID: 33083450 PMCID: PMC7559508 DOI: 10.1155/2020/1470867] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/26/2020] [Accepted: 09/11/2020] [Indexed: 11/26/2022]
Abstract
Background Acute myocardial infarction (AMI) is regarded as an urgent clinical entity, and identification of differentially expressed genes, lncRNAs, and altered pathways shall provide new insight into the molecular mechanisms behind AMI. Materials and Methods Microarray data was collected to identify key genes and lncRNAs involved in AMI pathogenesis. The differential expression analysis and gene set enrichment analysis (GSEA) were employed to identify the upregulated and downregulated genes and pathways in AMI. The protein-protein interaction network and protein-RNA interaction analysis were utilized to reveal key long noncoding RNAs. Results In the present study, we utilized gene expression profiles of circulating endothelial cells (CEC) from 49 patients of AMI and 50 controls and identified a total of 552 differentially expressed genes (DEGs). Based on these DEGs, we also observed that inflammatory response-related genes and pathways were highly upregulated in AMI. Mapping the DEGs to the protein-protein interaction (PPI) network and identifying the subnetworks, we found that OMD and WDFY3 were the hub nodes of two subnetworks with the highest connectivity, which were found to be involved in circadian rhythm and organ- or tissue-specific immune response. Furthermore, 23 lncRNAs were differentially expressed between AMI and control groups. Specifically, we identified some functional lncRNAs, including XIST and its antisense RNA, TSIX, and three lncRNAs (LINC00528, LINC00936, and LINC01001), which were predicted to be interacting with TLR2 and participate in Toll-like receptor signaling pathway. In addition, we also employed the MMPC algorithm to identify six gene signatures for AMI diagnosis. Particularly, the multivariable SVM model based on the six genes has achieved a satisfying performance (AUC = 0.97). Conclusion In conclusion, we have identified key regulatory lncRNAs implicated in AMI, which not only deepens our understanding of the lncRNA-related molecular mechanism of AMI but also provides computationally predicted regulatory lncRNAs for AMI researchers.
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Wadowski PP, Weikert C, Pultar J, Lee S, Eichelberger B, Koppensteiner R, Lang IM, Panzer S, Gremmel T. Ticagrelor Inhibits Toll-Like and Protease-Activated Receptor Mediated Platelet Activation in Acute Coronary Syndromes. Cardiovasc Drugs Ther 2020; 34:53-63. [PMID: 32062795 PMCID: PMC7093367 DOI: 10.1007/s10557-019-06932-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Purpose Since ticagrelor inhibits the cellular uptake of adenosine, thereby increasing extracellular adenosine concentration and biological activity, we hypothesized that ticagrelor has adenosine-dependent antiplatelet properties. In the current study, we compared the effects of ticagrelor and prasugrel on platelet activation in acute coronary syndrome (ACS). Methods Platelet surface expression of P-selectin and activated glycoprotein (GP) IIb/IIIa in response to adenosine diphosphate (ADP), the toll-like receptor (TLR)-1/2 agonist Pam3CSK4, the TLR-4 agonist lipopolysaccharide (LPS), the protease-activated receptor (PAR)-1 agonist SFLLRN, and the PAR-4 agonist AYPGKF were measured by flow cytometry in blood from 80 ticagrelor- and 80 prasugrel-treated ACS patients on day 3 after percutaneous coronary intervention. Residual platelet aggregation to arachidonic acid (AA) and ADP were assessed by multiple electrode aggregometry and light transmission aggregometry. Results ADP-induced platelet activation and aggregation, and AA-induced platelet aggregation were similar in patients on ticagrelor and prasugrel, respectively (all p ≥ 0.3). Further, LPS-induced platelet surface expression of P-selectin and activated GPIIb/IIIa did not differ significantly between ticagrelor- and prasugrel-treated patients (both p > 0.4). In contrast, Pam3CSK4-induced platelet surface expression of P-selectin and activated GPIIb/IIIa were significantly lower in ticagrelor-treated patients (both p ≤ 0.005). Moreover, SFLLRN-induced platelet surface expression of P-selectin and activated GPIIb/IIIa were significantly less pronounced in patients on ticagrelor therapy compared to prasugrel-treated patients (both p < 0.03). Finally, PAR-4 mediated platelet activation as assessed by platelet surface expression of activated GPIIb/IIIa following stimulation with AYPGKF was significantly lower in patients receiving ticagrelor (p = 0.02). Conclusion Ticagrelor inhibits TLR-1/2 and PAR mediated platelet activation in ACS patients more strongly than prasugrel.
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Affiliation(s)
- Patricia P Wadowski
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Constantin Weikert
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Joseph Pultar
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Silvia Lee
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Beate Eichelberger
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Renate Koppensteiner
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Irene M Lang
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Simon Panzer
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Thomas Gremmel
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria.
- Department of Internal Medicine, Cardiology and Nephrology, Landesklinikum Wiener Neustadt, Wiener Neustadt, Austria.
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Revisiting Platelets and Toll-Like Receptors (TLRs): At the Interface of Vascular Immunity and Thrombosis. Int J Mol Sci 2020; 21:ijms21176150. [PMID: 32858930 PMCID: PMC7504402 DOI: 10.3390/ijms21176150] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 12/19/2022] Open
Abstract
While platelet function has traditionally been described in the context of maintaining vascular integrity, recent evidence suggests that platelets can modulate inflammation in a much more sophisticated and nuanced manner than previously thought. Some aspects of this expanded repertoire of platelet function are mediated via expression of Toll-like receptors (TLRs). TLRs are a family of pattern recognition receptors that recognize pathogen-associated and damage-associated molecular patterns. Activation of these receptors is crucial for orchestrating and sustaining the inflammatory response to both types of danger signals. The TLR family consists of 10 known receptors, and there is at least some evidence that each of these are expressed on or within human platelets. This review presents the literature on TLR-mediated platelet activation for each of these receptors, and the existing understanding of platelet-TLR immune modulation. This review also highlights unresolved methodological issues that potentially contribute to some of the discrepancies within the literature, and we also suggest several recommendations to overcome these issues. Current understanding of TLR-mediated platelet responses in influenza, sepsis, transfusion-related injury and cardiovascular disease are discussed, and key outstanding research questions are highlighted. In summary, we provide a resource—a “researcher’s toolkit”—for undertaking further research in the field of platelet-TLR biology.
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Dib PRB, Quirino-Teixeira AC, Merij LB, Pinheiro MBM, Rozini SV, Andrade FB, Hottz ED. Innate immune receptors in platelets and platelet-leukocyte interactions. J Leukoc Biol 2020; 108:1157-1182. [PMID: 32779243 DOI: 10.1002/jlb.4mr0620-701r] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 06/11/2020] [Accepted: 06/28/2020] [Indexed: 12/14/2022] Open
Abstract
Platelets are chief cells in hemostasis. Apart from their hemostatic roles, platelets are major inflammatory effector cells that can influence both innate and adaptive immune responses. Activated platelets have thromboinflammatory functions linking hemostatic and immune responses in several physiological and pathological conditions. Among many ways in which platelets exert these functions, platelet expression of pattern recognition receptors (PRRs), including TLR, Nod-like receptor, and C-type lectin receptor families, plays major roles in sensing and responding to pathogen-associated or damage-associated molecular patterns (PAMPs and DAMPs, respectively). In this review, an increasing body of evidence is compiled showing the participation of platelet innate immune receptors, including PRRs, in infectious diseases, sterile inflammation, and cancer. How platelet recognition of endogenous DAMPs participates in sterile inflammatory diseases and thrombosis is discussed. In addition, platelet recognition of both PAMPs and DAMPs initiates platelet-mediated inflammation and vascular thrombosis in infectious diseases, including viral, bacterial, and parasite infections. The study also focuses on the involvement of innate immune receptors in platelet activation during cancer, and their contribution to tumor microenvironment development and metastasis. Finally, how innate immune receptors participate in platelet communication with leukocytes, modulating leukocyte-mediated inflammation and immune functions, is highlighted. These cell communication processes, including platelet-induced release of neutrophil extracellular traps, platelet Ag presentation to T-cells and platelet modulation of monocyte cytokine secretion are discussed in the context of infectious and sterile diseases of major concern in human health, including cardiovascular diseases, dengue, HIV infection, sepsis, and cancer.
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Affiliation(s)
- Paula Ribeiro Braga Dib
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil.,Laboratory of Immunology, Infectious Diseases and Obesity, Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Anna Cecíllia Quirino-Teixeira
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Laura Botelho Merij
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Mariana Brandi Mendonça Pinheiro
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Stephane Vicente Rozini
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Fernanda Brandi Andrade
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Eugenio Damaceno Hottz
- Laboratory of Immunothrombosis, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
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Dai W, Sun Y, Jiang Z, Du K, Xia N, Zhong G. Key genes associated with non-alcoholic fatty liver disease and acute myocardial infarction. Med Sci Monit 2020; 26:e922492. [PMID: 32594092 PMCID: PMC7341693 DOI: 10.12659/msm.922492] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background With increasing research on non-alcoholic fatty liver (NAFLD) and acute myocardial infarction (AMI), many studies show a tight correlation between NAFLD and AMI, but the underlying pathophysiology is still not clear. This study was performed to identify the potential hub genes and pathways related to these 2 diseases by using the bioinformatics method. Material/Methods The Gene Expression Omnibus (GEO) dataset GSE63067 of NAFLD patients and normal controls was downloaded from the GEO database. The GSE60993 and GSE66360 datasets for AMI patients and healthy controls were also obtained. Differentially expressed genes (DEGs) of NAFLD and AMI datasets and the common genes between them were obtained. Further GO and KEGG enrichment analyses for common genes were performed. To define the pathogenesis associated with both NAFLD and AMI, a protein–protein interaction (PPI) network was constructed. Finally, SPSS software was utilized to analyze the diagnostic value of hub genes in the NAFLD and AMI datasets, respectively. Results Seventy-eight common genes were obtained in NAFLD and AMI with the threshold of P-value <0.05. Thirty-one GO terms and 10 KEGG pathways were obtained. Also, the top 10 hub genes (TLR2, LILRB2, CXCL1, FPR1, TLR4, TYROBP, MMP9, FCER1G, CLEC4D, and CCR2) were selected with P<0.05. Conclusions The results of this study suggest that some novel genes play an important role in the occurrence and progression NAFLD and AMI. More experimental research and clinical trials are needed to verify our results.
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Affiliation(s)
- Weiran Dai
- Department of Cardiology Ward 1, The First Affiliated Hospital of Guangxi, Medical University, Guangxi, Nanning, China (mainland)
| | - Yue Sun
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Guangxi, Medical University, Guangxi, Nanning, China (mainland)
| | - Zhiyuan Jiang
- Department of Hypertension, The First Affiliated Hospital of Guangxi, Medical University, Guangxi, Nanning, China (mainland)
| | - Kuan Du
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Guangxi, Medical University, Guangxi, Nanning, China (mainland)
| | - Ning Xia
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Guangxi, Medical University, Guangxi, Nanning, China (mainland)
| | - Guoqiang Zhong
- Department of Cardiology Ward 1, The First Affiliated Hospital of Guangxi, Medical University, Guangxi, Nanning, China (mainland)
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Rosiglitazone alleviates myocardial apoptosis in rats with acute myocardial infarction via inhibiting TLR4/NF-κB signaling pathway. Exp Ther Med 2020; 19:2491-2496. [PMID: 32256726 PMCID: PMC7086202 DOI: 10.3892/etm.2020.8479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 12/19/2019] [Indexed: 01/02/2023] Open
Abstract
Influence of rosiglitazone on the myocardial apoptosis in rats with acute myocardial infarction (AMI) via the Toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB) signaling pathway was explored. A total of 30 healthy male Sprague-Dawley (SD) rats were randomly divided into group A (Sham group, n=10), group B (AMI model group, n=10) and group C (AMI model + rosiglitazone group, n=10) using a random number table. It was observed through H&E staining that group A had myocardial cells with normal morphology and infiltration of few inflammatory factors, while group B had swollen myocardial cells with disorderly and irregular morphology, large and dark-colored nuclei, infiltration of massive inflammatory factors, large amounts of fibrous tissue hyperplasia in the intercellular space, disorderly arranged, thickened and lengthened myocardial fibers with widened gaps. Moreover, group C exhibited infiltration of fewer inflammatory factors and more normal myocardial tissue structure compared with group B. According to the sirius-red staining results, group A had normally arranged myocardial cells with a small amount of collagen hyperplasia, while group B had collagen interstitial hyperplasia and higher content of myocardial collagen than group A. Compared with that in group B, the myocardial collagen deposit was substantially reduced in group C. TUNEL staining results showed that the apoptosis rate of rat myocardial cells in group B was obviously higher than that in group A (40.37 vs. 5.23%), and it was notably lower in group C than that in group B (24.82 vs. 40.37%). According to the western blot results, the protein expression levels of the inflammatory factors TLR-4 and NF-κB in rat myocardial tissues were notably raised in group B compared with those in group A, and they were evidently lower in group C than those in group B. Rosiglitazone inhibits the TLR4/NF-κB signaling pathway to produce a myocardioprotective effect.
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Hally KE, Bird GK, La Flamme AC, Harding SA, Larsen PD. Platelets modulate multiple markers of neutrophil function in response to in vitro Toll-like receptor stimulation. PLoS One 2019; 14:e0223444. [PMID: 31581214 PMCID: PMC6776355 DOI: 10.1371/journal.pone.0223444] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/20/2019] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION In addition to their role in facilitating leukocyte-mediated inflammation, platelets can dampen leukocyte pro-inflammatory responses in some contexts. Consequently, platelets are increasingly appreciated as regulators of inflammation. Together, platelets and neutrophils play a role in inflammation through Toll-like receptor (TLR) expression, although we do not fully understand how platelets shape neutrophil responses to TLR stimulation. Here, we aimed to determine the extent to which platelets can modulate neutrophil function in response to in vitro stimulation with TLR4, TLR2/1, and TLR2/6 agonists. METHODS Neutrophils from 10 healthy individuals were cultured alone or with autologous platelets. Neutrophils ± platelets were left unstimulated or were stimulated with 1 or 100 ng/mL lipopolysaccharide (LPS; a TLR4 agonist), Pam3CSK4 (a TLR2/1 agonist) and fibroblast-stimulating lipopeptide (FSL)-1 (a TLR2/6 agonist). Neutrophil activation and phagocytic activity were assessed by flow cytometry, and elastase and interleukin-8 secretion were assessed by ELISA. RESULTS The addition of platelets attenuated neutrophil CD66b and CD11b expression in response to various doses of Pam3CSK4 and FSL-1. Furthermore, platelet co-culture was associated with higher CD62L expression (indicating reduced CD62L shedding) in response to these TLR agonists. Platelets also reduced elastase secretion in unstimulated cultures and in response to low-dose TLR stimulation. Conversely, platelet co-culture increased neutrophil phagocytosis in unstimulated cultures and in response to low-dose Pam3CSK4 and FSL-1. Platelets also increased IL-8 secretion in response to low-dose LPS. CONCLUSION Platelets are complex immunomodulators that can attenuate some, and simultaneously augment other, neutrophil functions. This modulation can occur both in the absence and presence of TLR stimulation.
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Affiliation(s)
- Kathryn E. Hally
- Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
- Wellington Cardiovascular Research Group, Wellington, New Zealand
- * E-mail:
| | - Georgina K. Bird
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
- Wellington Cardiovascular Research Group, Wellington, New Zealand
| | - Anne C. La Flamme
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
- Wellington Cardiovascular Research Group, Wellington, New Zealand
| | - Scott A. Harding
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
- Wellington Cardiovascular Research Group, Wellington, New Zealand
- Department of Cardiology, Wellington Hospital, Wellington, New Zealand
| | - Peter D. Larsen
- Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
- Wellington Cardiovascular Research Group, Wellington, New Zealand
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Zhao S, Li Z, Huang F, Wu J, Gui L, Zhang X, Wang Y, Wang X, Peng S, Zhao M. Nano-scaled MTCA-KKV: for targeting thrombus, releasing pharmacophores, inhibiting thrombosis and dissolving blood clots in vivo. Int J Nanomedicine 2019; 14:4817-4831. [PMID: 31308660 PMCID: PMC6614858 DOI: 10.2147/ijn.s206294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/23/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND In vitro (1R,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxyl-Lys(Pro-Ala-Lys)-Arg-Gly-Asp-Val (MTCA-KKV) adheres activated platelets, targets P-selectin and GPIIb/IIIa. This led to the development of MTCA-KKV as thrombus targeting nano-medicine. METHODS MTCA-KKV was characterized by nano-feature, anti-thrombotic activity, thrombolytic activity, thrombus target and targeting release. RESULTS In vivo 0.01 μmol/kg of MTCA-KKV formed nano-particles less than 100 nm in diameter, targeted thrombus, released anti-thrombotic and thrombolytic pharmacophores, prevented thrombosis and dissolved blood clots. CONCLUSION Based on the profiles of targeting thrombus, targeting release, inhibiting thrombosis and dissolving blood clots MTCA-KKV is a promising nano-medicine.
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Affiliation(s)
- Shurui Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Ze Li
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Fei Huang
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, People’s Republic of China
| | - Jianhui Wu
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Lin Gui
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Xiaoyi Zhang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Yaonan Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Xiaozhen Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Shiqi Peng
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Ming Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
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Chao CH, Wu WC, Lai YC, Tsai PJ, Perng GC, Lin YS, Yeh TM. Dengue virus nonstructural protein 1 activates platelets via Toll-like receptor 4, leading to thrombocytopenia and hemorrhage. PLoS Pathog 2019; 15:e1007625. [PMID: 31009511 PMCID: PMC6497319 DOI: 10.1371/journal.ppat.1007625] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 05/02/2019] [Accepted: 02/07/2019] [Indexed: 12/12/2022] Open
Abstract
Dengue virus (DENV) infection, the most common mosquito-transmitted viral infection, can cause a range of diseases from self-limiting dengue fever to life-threatening dengue hemorrhagic fever and shock syndrome. Thrombocytopenia is a major characteristic observed in both mild and severe dengue disease and is significantly correlated with the progression of dengue severity. Previous studies have shown that DENV nonstructural protein 1 (NS1), which can be secreted into patients’ blood, can stimulate immune cells via Toll-like receptor 4 (TLR4) and can cause endothelial leakage. However, it is unclear whether DENV NS1 can directly induce platelet activation or cause thrombocytopenia during DENV infection. In this study, we first demonstrated that DENV but not Zika virus cell culture supernatant could induce P-selectin expression and phosphatidylserine (PS) exposure in human platelets, both of which were abolished when NS1 was depleted from the DENV supernatant. Similar results were found using recombinant NS1 from all four serotypes of DENV, and those effects were blocked in the presence of anti-NS1 F(ab’)2, anti-TLR4 antibody, a TLR4 antagonist (Rhodobacter sphaeroides lipopolysaccharide, LPS-Rs) and a TLR4 signaling inhibitor (TAK242), but not polymyxin B (an LPS inhibitor). Moreover, the activation of platelets by DENV NS1 promoted subthreshold concentrations of adenosine diphosphate (ADP)-induced platelet aggregation and enhanced platelet adhesion to endothelial cells and phagocytosis by macrophages. Finally, we demonstrated that DENV-induced thrombocytopenia and hemorrhage were attenuated in TLR4 knockout and wild-type mice when NS1 was depleted from DENV supernatant. Taken together, these results suggest that the binding of DENV NS1 to TLR4 on platelets can trigger its activation, which may contribute to thrombocytopenia and hemorrhage during dengue infection. Over the past 50 years, dengue has been a continuing global threat, with no effective vaccine or specific antiviral drug. Dengue infection causes a wide range of outcomes, from fever-like symptoms to severe dengue hemorrhagic fever. Thrombocytopenia, a reduction in platelet count, is a common feature observed in both mild and severe dengue and is correlated with disease severity. In this study, we used dengue viral supernatant or DENV recombinant NS1 protein to stimulate human-isolated platelets. We found that DENV NS1 could directly activate platelets through TLR4 and could further enhance platelet aggregation, adhesion to endothelial cells and phagocytosis by macrophages, which could lead to thrombocytopenia. We also proved that both NS1 and TLR4 are critical for DENV-induced thrombocytopenia and hemorrhage using a DENV-induced hemorrhagic mouse model. Our study reveals a new pathogenic role of NS1 during dengue infection and highlights that NS1 should be a topic of attention in the development of therapeutic drugs and vaccines against dengue infection.
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Affiliation(s)
- Chiao-Hsuan Chao
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Chueh Wu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yen-Chung Lai
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Jane Tsai
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Guey-Chuen Perng
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yee-Shin Lin
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Trai-Ming Yeh
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- * E-mail:
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Identification of Candidate Genes and MicroRNAs for Acute Myocardial Infarction by Weighted Gene Coexpression Network Analysis. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5742608. [PMID: 30886860 PMCID: PMC6388335 DOI: 10.1155/2019/5742608] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/11/2018] [Accepted: 01/13/2019] [Indexed: 12/31/2022]
Abstract
Background Identification of potential molecular targets of acute myocardial infarction is crucial to our comprehensive understanding of the disease mechanism. However, studies of gene coexpression analysis via jointing multiple microarray data of acute myocardial infarction still remain restricted. Methods Microarray data of acute myocardial infarction (GSE48060, GSE66360, GSE97320, and GSE19339) were downloaded from Gene Expression Omnibus database. Three data sets without heterogeneity (GSE48060, GSE66360, and GSE97320) were subjected to differential expression analysis using MetaDE package. Differentially expressed genes having upper 25% variation across samples were imported in weighted gene coexpression network analysis. Functional and pathway enrichment analyses were conducted for genes in the most significant module using DAVID. The predicted microRNAs to regulate target genes in the most significant module were identified using TargetScan. Moreover, subpathway analyses using iSubpathwayMiner package and GenCLiP 2.0 were performed on hub genes with high connective weight in the most significant module. Results A total of 1027 differentially expressed genes and 33 specific modules were screened out between acute myocardial infarction patients and control samples. Ficolin (collagen/fibrinogen domain containing) 1 (FCN1), CD14 molecule (CD14), S100 calcium binding protein A9 (S100A9), and mitochondrial aldehyde dehydrogenase 2 (ALDH2) were identified as critical target molecules; hsa-let-7d, hsa-let-7b, hsa-miR-124-3, and hsa-miR-9-1 were identified as potential regulators of the expression of the key genes in the two biggest modules. Conclusions FCN1, CD14, S100A9, ALDH2, hsa-let-7d, hsa-let-7b, hsa-miR-124-3, and hsa-miR-9-1 were identified as potential candidate regulators in acute myocardial infarction. These findings might provide new comprehension into the underlying molecular mechanism of disease.
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Takimoto M. Multidisciplinary Roles of LRRFIP1/GCF2 in Human Biological Systems and Diseases. Cells 2019; 8:cells8020108. [PMID: 30709060 PMCID: PMC6406849 DOI: 10.3390/cells8020108] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/21/2019] [Accepted: 01/27/2019] [Indexed: 01/28/2023] Open
Abstract
Leucine Rich Repeat of Flightless-1 Interacting Protein 1/GC-binding factor 2 (LRRFIP1/GCF2) cDNA was cloned for a transcriptional repressor GCF2, which bound sequence-specifically to a GC-rich element of epidermal growth factor receptor (EGFR) gene and repressed its promotor. LRRFIP1/GCF2 was also cloned as a double stranded RNA (dsRNA)-binding protein to trans-activation responsive region (TAR) RNA of Human Immunodeficiency Virus-1 (HIV-1), termed as TAR RNA interacting protein (TRIP), and as a binding protein to the Leucine Rich Repeat (LRR) of Flightless-1(Fli-1), termed as Flightless-1 LRR associated protein 1 (FLAP1) and LRR domain of Flightless-1 interacting Protein 1 (LRRFIP1). Subsequent functional studies have revealed that LRRFIP1/GCF2 played multiple roles in the regulation of diverse biological systems and processes, such as in immune response to microorganisms and auto-immunity, remodeling of cytoskeletal system, signal transduction pathways, and transcriptional regulations of genes. Dysregulations of LRRFIP1/GCF2 have been implicated in the causes of several experimental and clinico-pathological states and the responses to them, such as autoimmune diseases, excitotoxicity after stroke, thrombosis formation, inflammation and obesity, the wound healing process, and in cancers. LRRFIP1/GCF2 is a bioregulator in multidisciplinary systems of the human body and its dysregulation can cause diverse human diseases.
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Affiliation(s)
- Masato Takimoto
- Institute for Genetic Medicine, Hokkaido University, Hokkaido 060-0815, Japan.
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Schattner M. Platelet TLR4 at the crossroads of thrombosis and the innate immune response. J Leukoc Biol 2018; 105:873-880. [DOI: 10.1002/jlb.mr0618-213r] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/02/2018] [Accepted: 11/19/2018] [Indexed: 12/20/2022] Open
Affiliation(s)
- Mirta Schattner
- Laboratory of Experimental ThrombosisInstitute of Experimental Medicine (IMEX‐CONICET‐National Academy of Medicine) Buenos Aires Argentina
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Moreno-Ramírez CE, Gutiérrez-Garzón E, Barreto GE, Forero DA. Genome-Wide Expression Profiles for Ischemic Stroke: A Meta-Analysis. J Stroke Cerebrovasc Dis 2018; 27:3336-3341. [PMID: 30166211 DOI: 10.1016/j.jstrokecerebrovasdis.2018.07.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 07/07/2018] [Accepted: 07/22/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Genome-wide expression studies (GWES), using microarray platforms, have allowed a deeper understanding of the molecular factors involved in the pathophysiology of ischemic stroke (IS), one of the main global causes of mortality and disability. METHODS In the current work, we carried out a meta-analysis of available GWES for IS. Bioinformatics and computational biology analyses were applied to identify enriched functional categories and convergence with other genomic datasets for IS. RESULTS Three primary datasets were included and in the meta-analyses for GWES and IS, 41 differentially expressed (DE) genes were identified using a random effects model. Thirteen of these genes were downregulated and 28 were upregulated. An analysis of functional categories found a significant enrichment for the Gene Ontology Term "Inflammatory Response" and for binding sites for the PAX2 transcription factor. CONCLUSIONS The list of DE genes identified in this meta-analysis of GWES for IS is useful for future genetic and molecular studies, which would allow the identification of novel mechanisms involved in the pathophysiology of IS. Several of the DE genes found in this meta-analysis have known functional roles related to mechanisms involved in the pathophysiology of IS. It is recognized the role of the inflammatory response in the pathophysiology of IS.
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Affiliation(s)
- Carlos E Moreno-Ramírez
- Laboratory of Neuropsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Eulogia Gutiérrez-Garzón
- Laboratory of Neuropsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Diego A Forero
- Laboratory of Neuropsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia.
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Heptapeptide-based modification leading to enhancing the action of MTCA on activated platelets, P-selectin, GPIIb/IIIa. Future Med Chem 2018; 10:1957-1970. [PMID: 29973078 DOI: 10.4155/fmc-2018-0055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
AIM The modification of platelet inhibitor to enhance its targeting capacity toward platelets is of clinical importance. Thus, (1R, 3S)-1-methyl-1, 2, 3, 4-tetrahydro-β-carboline-3-carboxylic acid (MTCA), a platelet inhibitor, was modified with Lys(Pro-Ala-Lys)-Arg-Gly-Asp-Val (KKV), platelet targeting peptide, to form MTCA-KKV. MATERIALS & METHODS MTCA and MTCA-KKV were synthesized to identify the effect of KKV modification on MTCA and platelets. RESULTS Atomic force microscopy imaged MTCA-KKV effectively accumulated on activated platelets. UV spectra showed that MTCA-KKV concentration dependently changed P-selectin and GPIIb/IIIa conformations. For platelet aggregation, the IC50 of MTCA-KKV was approximately 1/10 folds of MTCA. CONCLUSION KKV modification led to forming MTCA-KKV that is superior to MTCA in terms of accumulating on activated platelets, targeting P-selectin and GPIIb/IIIa and inhibiting platelet aggregation. MTCA-KKV could be a promising lead for further investigation.
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Hally KE, La Flamme AC, Harding SA, Larsen PD. Platelets regulate leucocyte responses to Toll-like receptor stimulation. Clin Transl Immunology 2018; 7:e1036. [PMID: 30065836 PMCID: PMC6063753 DOI: 10.1002/cti2.1036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 12/15/2022] Open
Abstract
Objectives Platelets are important regulators of vascular thrombosis and inflammation and are known to express Toll-like receptors (TLRs). Through TLRs, platelets mediate a number of responses by interacting with leucocytes. Here, we report the extent to which platelets modulate in vitro peripheral blood mononuclear cells (PBMCs) and granulocyte responses to TLR4, TLR2/1 and TLR2/6 stimulation in healthy subjects. Methods Peripheral blood mononuclear cells and granulocytes from 10 healthy volunteers were cultured alone or cocultured with platelets. Cultures were left unstimulated or stimulated with 1 or 100 ng mL-1 of either LPS (TLR4 agonist), Pam3CSK4 (TLR2/1 agonist) or fibroblast-stimulating lipopeptide (FSL)-1 (TLR2/6 agonist). Neutrophil activation (CD66b expression), monocyte activation (HLA-DR), granulocyte elastase production and PBMC cytokine and chemokine production were examined. Results Platelet coculture decreased neutrophil CD66b expression in response to LPS, Pam3CSK4 and FSL-1, and modestly decreased monocyte HLA-DR expression in response to low-dose LPS. Platelets reduced granulocyte elastase secretion in response to low doses of all TLR agonists tested. In response to LPS, platelet coculture reduced IL-6, tumor necrosis factor (TNF)-α and MIP-1β production, and increased IL-10 production by PBMCs. In response to FSL-1, platelets increased IL-6, IL-10 and MIP-1β production, but reduced TNF-α production. Platelet coculture did not alter PBMC cytokine/chemokine production in response to Pam3CSK4. Conclusion This study challenges the notion that platelets act solely in a pro-inflammatory manner. Rather, platelets are complex immunomodulators that regulate leucocyte responses to TLR stimulation in a TLR agonist-specific manner. Platelets may modulate leucocyte responses to dampen inflammation, and this platelet effect may play an important role in reducing inflammation-mediated host damage.
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Affiliation(s)
- Kathryn E Hally
- School of Biological Sciences Victoria University of Wellington Wellington New Zealand.,Wellington Cardiovascular Research Group Wellington New Zealand
| | - Anne C La Flamme
- School of Biological Sciences Victoria University of Wellington Wellington New Zealand.,Wellington Cardiovascular Research Group Wellington New Zealand
| | - Scott A Harding
- School of Biological Sciences Victoria University of Wellington Wellington New Zealand.,Wellington Cardiovascular Research Group Wellington New Zealand.,Department of Cardiology Wellington Hospital Wellington New Zealand
| | - Peter D Larsen
- School of Biological Sciences Victoria University of Wellington Wellington New Zealand.,Wellington Cardiovascular Research Group Wellington New Zealand.,Department of Surgery and Anaesthesia University of Otago Wellington New Zealand
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Hally KE, La Flamme AC, Harding SA, Larsen PD. The effects of aspirin and ticagrelor on Toll-like receptor (TLR)-mediated platelet activation: results of a randomized, cross-over trial. Platelets 2018; 30:599-607. [PMID: 29869943 DOI: 10.1080/09537104.2018.1479520] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Platelet activation underlies the pathology of an acute myocardial infarction (AMI), and dual antiplatelet therapy (DAPT) is administered post-AMI to limit this activation. Platelets express Toll-like receptors (TLRs) 1, 2, and 4 and become potently activated in response to TLR2/1 and TLR4 stimulation. However, it is unknown whether antiplatelet agents can protect against platelet activation via these TLR pathways. This study aimed to determine the extent to which TLR-mediated platelet activation can be inhibited by currently used antiplatelet agents. Ten healthy subjects were enrolled into a single-blinded randomized cross-over trial. Subjects received either aspirin monotherapy or DAPT (aspirin in combination with ticagrelor) for 1 week, were washed out, and crossed over to the other drug regimen. Platelet activation was assessed in response to Pam3CSK4 (a TLR2/1 agonist) and lipopolysaccharide (LPS; a TLR4 agonist) at baseline and after each antiplatelet drug regimen. Platelet-surface expression of CD62p and PAC1 by flow cytometry was measured as markers of platelet activation. At baseline, expression of CD62p and PAC1 increased significantly in response to high-dose LPS and in a dose-dependent manner in response to Pam3CSK4. Aspirin monotherapy did not inhibit platelet activation in response to any TLR agonist tested. DAPT with aspirin and ticagrelor only modestly inhibited expression of both activation markers in response to high doses of Pam3CSK4 and LPS. However, incubation with these TLR agonists led to substantial platelet activation despite treatment with these anti-platelet agents. Platelet-TLR2/1 and platelet-TLR4 represent intact on-treatment platelet activation pathways, which may contribute to on-going platelet activation post-AMI.
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Affiliation(s)
- Kathryn E Hally
- a School of Biological Sciences , Victoria University of Wellington , Wellington , New Zealand.,b Wellington Cardiovascular Research Group , Wellington , New Zealand
| | - Anne C La Flamme
- a School of Biological Sciences , Victoria University of Wellington , Wellington , New Zealand.,b Wellington Cardiovascular Research Group , Wellington , New Zealand
| | - Scott A Harding
- a School of Biological Sciences , Victoria University of Wellington , Wellington , New Zealand.,b Wellington Cardiovascular Research Group , Wellington , New Zealand.,c Department of Cardiology , Wellington Hospital , Wellington , New Zealand
| | - Peter D Larsen
- a School of Biological Sciences , Victoria University of Wellington , Wellington , New Zealand.,b Wellington Cardiovascular Research Group , Wellington , New Zealand.,d Department of Surgery and Anaesthesia , University of Otago , Wellington , New Zealand
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Abstract
The primary β-globin gene mutation that causes sickle cell disease (SCD) has significant pathophysiological consequences that result in hemolytic events and the induction of the inflammatory processes that ultimately lead to vaso-occlusion. In addition to their role in the initiation of the acute painful vaso-occlusive episodes that are characteristic of SCD, inflammatory processes are also key components of many of the complications of the disease including autosplenectomy, acute chest syndrome, pulmonary hypertension, leg ulcers, nephropathy and stroke. We, herein, discuss the events that trigger inflammation in the disease, as well as the mechanisms, inflammatory molecules and cells that propagate these inflammatory processes. Given the central role that inflammation plays in SCD pathophysiology, many of the therapeutic approaches currently under pre-clinical and clinical development for the treatment of SCD endeavor to counter aspects or specific molecules of these inflammatory processes and it is possible that, in the future, we will see anti-inflammatory drugs being used either together with, or in place of, hydroxyurea in those SCD patients for whom hematopoietic stem cell transplants and evolving gene therapies are not a viable option.
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Affiliation(s)
- Nicola Conran
- Hematology Center, University of Campinas - UNICAMP, Cidade Universitária, Campinas-SP, Brazil
| | - John D Belcher
- Department of Medicine, Division of Hematology, Oncology and Transplantation, Vascular Biology Center, University of Minnesota, Minneapolis, MN, USA
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Becher PM, Hinrichs S, Fluschnik N, Hennigs JK, Klingel K, Blankenberg S, Westermann D, Lindner D. Role of Toll-like receptors and interferon regulatory factors in different experimental heart failure models of diverse etiology: IRF7 as novel cardiovascular stress-inducible factor. PLoS One 2018. [PMID: 29538462 PMCID: PMC5851607 DOI: 10.1371/journal.pone.0193844] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Heart failure (HF) is a leading cause of morbidity and mortality in the western world. Although optimal medical care and treatment is widely available, the prognosis of patients with HF is still poor. Toll-like receptors (TLRs) are important compartments of the innate immunity. Current studies have identified TLRs as critical mediators in cardiovascular diseases. In the present study, we investigated the involvement of TLRs and interferon (IFN) regulatory factors (IRFs) in different experimental HF models including viral myocarditis, myocardial ischemia, diabetes mellitus, and cardiac hypertrophy. In addition, we investigated for the first time comprehensive TLR and IRF gene and protein expression under basal conditions in murine and human cardiac tissue. We found that Tlr4, Tlr9 and Irf7 displayed highest gene expression under basal conditions, indicating their significant role in first-line defense in the murine and human heart. Moreover, induction of TLRs and IRFs clearly differs between the various experimental HF models of diverse etiology and the concomitant inflammatory status. In the HF model of acute viral-induced myocarditis, TLR and IRF activation displayed the uppermost gene expression in comparison to the remaining experimental HF models, indicating the highest amount of myocardial inflammation in myocarditis. In detail, Irf7 displayed by far the highest gene expression during acute viral infection. Interestingly, post myocardial infarction TLR and IRF gene expression was almost exclusively increased in the infarct zone after myocardial ischemia (Tlr2, Tlr3, Tlr6, Tlr7, Tlr9, Irf3, Irf7). With one exception, Irf3 showed a decreased gene expression in the remote zone post infarction. Finally, we identified Irf7 as novel cardiovascular stress-inducible factor in the pathologically stressed heart. These findings on TLR and IRF function in the inflamed heart highlight the complexity of inflammatory immune response and raise more interesting questions for future investigation.
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Affiliation(s)
- Peter Moritz Becher
- Department for General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
- * E-mail:
| | - Svenja Hinrichs
- Department for General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
- DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Nina Fluschnik
- Department for General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
| | - Jan K. Hennigs
- Section Pneumology, Department of Medicine II, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Karin Klingel
- Cardiopathology, Institute for Pathology and Neuropathology, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Stefan Blankenberg
- Department for General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
- DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Dirk Westermann
- Department for General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
- DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Diana Lindner
- Department for General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
- DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Hamburg, Germany
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Wang X, Wang Y, Wu J, Gui L, Zhang X, Zheng M, Wang Y, Zhao S, Li Z, Zhao M, Peng S. Docking based design of diastereoisomeric MTCA as GPIIb/IIIa receptor inhibitor. Bioorg Med Chem Lett 2017; 27:5114-5118. [PMID: 29108753 DOI: 10.1016/j.bmcl.2017.10.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/23/2017] [Accepted: 10/27/2017] [Indexed: 12/17/2022]
Abstract
In GPIIb/IIIa mediated arterial thrombosis platelet activation plays a central role. To discover platelet activation inhibitor the pharmacophores of GPIIb/IIIa receptor inhibitors and anti-thrombotic agents were analyzed. This led to the design of (1R,3S)- and (1S,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acids as GPIIb/IIIa inhibitors. Comparing to (1S,3S)-isomer (1R,3S)-isomer had lower cdocker interaction energy. AFM image showed that the minimal effective concentration of (1S,3S)-isomer and (1R,3S)-isomer inhibiting platelet activation were 10-5 M and 10-6 M, respectively. In vivo 1 μmol/kg of oral (1S,3S)-isomer effectively inhibited the rats to form arterial thrombus and down regulated GPIIb/IIIa expression, but the activities were significantly lower than those of 1 μmol/kg of oral (1R,3S)-isomer. Both (1S,3S)-isomer and (1R,3S)-isomer can be safely used for structural modifications, but (1R,3S)-isomer should be superior to (1S,3S)-isomer.
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Affiliation(s)
- Xiaozhen Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Yuji Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Jianhui Wu
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Lin Gui
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Xiaoyi Zhang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Meiqing Zheng
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Yaonan Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Shurui Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Ze Li
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Ming Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Shiqi Peng
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China.
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