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Esteve-Pastor MA, Soler-Espejo E, Marín F. Reticulated Platelets: A Promising Prognosis Marker in Cardiovascular Diseases. Thromb Haemost 2024; 124:320-323. [PMID: 37678557 DOI: 10.1055/a-2170-1892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Affiliation(s)
- María Asunción Esteve-Pastor
- Department of Cardiology, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria (IMIB-Pascual Parrilla), CIBERCV, University of Murcia, Murcia, Spain
| | - Eva Soler-Espejo
- Department of Hematology, Hospital General Universitario Morales Meseguer, Instituto Murciano de Investigación Biosanitaria (IMIB-Pascual Parrilla) , University of Murcia, Murcia, Spain
| | - Francisco Marín
- Department of Cardiology, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria (IMIB-Pascual Parrilla), CIBERCV, University of Murcia, Murcia, Spain
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2
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Thomas S, Kelliher S, Krishnan A. Heterogeneity of platelets and their responses. Res Pract Thromb Haemost 2024; 8:102356. [PMID: 38666061 PMCID: PMC11043642 DOI: 10.1016/j.rpth.2024.102356] [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: 11/18/2023] [Revised: 01/22/2024] [Accepted: 02/06/2024] [Indexed: 04/28/2024] Open
Abstract
There has been increasing recognition of heterogeneity in blood platelets and their responses, particularly in recent years, where next-generation technologies and advanced bioinformatic tools that interrogate "big data" have enabled large-scale studies of RNA and protein expression across a growing list of disease states. However, pioneering platelet biologists and clinicians were already hypothesizing upon and investigating heterogeneity in platelet (and megakaryocyte) activity and platelet metabolism and aggregation over half a century ago. Building on their foundational hypotheses, in particular Professor Marian A. Packham's pioneering work and a State of the Art lecture in her memoriam at the 2023 International Society on Thrombosis and Haemostasis Congress by Anandi Krishnan, this review outlines the key features that contribute to the heterogeneity of platelets between and within individuals. Starting with important epidemiologic factors, we move stepwise through successively smaller scales down to heterogeneity revealed by single-cell technologies in health and disease. We hope that this overview will urge future scientific and clinical studies to recognize and account for heterogeneity of platelets and aim to apply methods that capture that heterogeneity. Finally, we summarize other exciting new data presented on this topic at the 2023 International Society on Thrombosis and Haemostasis Congress.
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Affiliation(s)
- Sally Thomas
- Sheffield Teaching Hospitals, National Health Services, Sheffield, UK
| | - Sarah Kelliher
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Anandi Krishnan
- Stanford University School of Medicine, Stanford University, Stanford, California, USA
- Rutgers University, Piscataway, New Jersey, USA
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3
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Deng J, Xiong L, Ding Y, Cai Y, Chen Z, Fan F, Luo S, Hu Y. Platelet RNA sequencing reveals profile of caffeic acid affecting hemostasis in mice. Res Pract Thromb Haemost 2024; 8:102349. [PMID: 38496710 PMCID: PMC10943058 DOI: 10.1016/j.rpth.2024.102349] [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: 04/18/2023] [Revised: 01/17/2024] [Accepted: 02/07/2024] [Indexed: 03/19/2024] Open
Abstract
Background Caffeic acid (CA) is a naturally occurring phenolic compound with diverse pharmacologic properties. CA plays a crucial role in hemostasis by increasing platelet count. However, the mechanism by which CA regulates platelets to promote hemostasis remains unclear. Objectives We aim to identify the potential target pathways and genes by which CA regulates platelets to promote hemostasis. Methods We performed RNA sequencing (RNA-seq) analysis of mouse platelet pools in both the CA-gavaged group and phosphate-buffered saline-gavaged group. Results The 12,934 expressed transcripts had been annotated after platelet RNA-seq. Compared with the phosphate-buffered saline group, 987 differentially expressed genes (DEGs) were identified, of which 466 were downregulated and 521 were upregulated in CA group. Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, and Reactome gene set enrichment analysis demonstrated that upregulated DEGs were enriched in the pathways of hemostasis, platelet activation, signaling, aggregation, and degranulation. Moreover, Kyoto Encyclopedia of Genes and Genomes and Reactome gene set enrichment analysis revealed that 5 of the 25 cosignificantly upregulated DEGs were essential in CA-mediated platelet regulation to promote hemostasis. Conclusion Our findings of platelet RNA-seq analysis demonstrate that CA regulates the gene expression of hemostasis and platelet activation-related pathways to increase platelet count and promote hemostasis. It will also provide reference molecular resources for future research on the function and mechanism by which CA regulates platelets to promote hemostasis.
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Affiliation(s)
- Jun Deng
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lv Xiong
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yajie Ding
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaohua Cai
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaolin Chen
- Translational Medicine Center, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Fengjuan Fan
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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4
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Lekva T, Sundaram AYF, Roland MCP, Åsheim J, Michelsen AE, Norwitz ER, Aukrust P, Gilfillan GD, Ueland T. Platelet and mitochondrial RNA is decreased in plasma-derived extracellular vesicles in women with preeclampsia-an exploratory study. BMC Med 2023; 21:458. [PMID: 37996819 PMCID: PMC10666366 DOI: 10.1186/s12916-023-03178-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Circulating extracellular vesicles (EVs) are increased in preeclampsia (PE) and are associated with severity and progression. We examined in this exploratory cohort study if the mRNAs and long noncoding RNAs (lncRNAs) in plasma-derived EVs were dysregulated in PE compared to normal pregnancy and display different temporal patterns during gestation. METHODS We isolated EVs from plasma at weeks 22-24 and 36-38 in women with and without PE (n=7 in each group) and performed RNA-seq, focusing on mRNAs and lncRNAs. We validated highly expressed mitochondrial and platelet-derived RNAs discovered from central pathways in 60 women with/without PE. We examined further one of the regulated RNAs, noncoding mitochondrially encoded tRNA alanine (MT-TA), in leukocytes and plasma to investigate its biomarker potential and association with clinical markers of PE. RESULTS We found abundant levels of platelet-derived and mitochondrial RNAs in EVs. Expression of these RNAs were decreased and lncRNAs increased in EVs from PE compared to without PE. These findings were further validated by qPCR for mitochondrial RNAs MT-TA, MT-ND2, MT-CYB and platelet-derived RNAs PPBP, PF4, CLU in EVs. Decreased expression of mitochondrial tRNA MT-TA in leukocytes at 22-24 weeks was strongly associated with the subsequent development of PE. CONCLUSIONS Platelet-derived and mitochondrial RNA were highly expressed in plasma EVs and were decreased in EVs isolated from women with PE compared to without PE. LncRNAs were mostly increased in PE. The MT-TA in leukocytes may be a useful biomarker for prediction and/or early detection of PE.
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Affiliation(s)
- Tove Lekva
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.
| | - Arvind Y Fm Sundaram
- Department Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | | | - June Åsheim
- Department Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Annika E Michelsen
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | - Pål Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Gregor D Gilfillan
- Department Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
- K. G. Jebsen Thrombosis Research and Expertise Center, University of Tromsø, Tromsø, Norway
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5
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Nersisyan S, Montenont E, Loher P, Middleton EA, Campbell R, Bray P, Rigoutsos I. Characterization of all small RNAs in and comparisons across cultured megakaryocytes and platelets of healthy individuals and COVID-19 patients. J Thromb Haemost 2023; 21:3252-3267. [PMID: 37558133 DOI: 10.1016/j.jtha.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/03/2023] [Accepted: 07/24/2023] [Indexed: 08/11/2023]
Abstract
BACKGROUND The small noncoding RNAs (sncRNAs) in megakaryocytes (MKs) and platelets are not well characterized. Neither is the impact of SARS-CoV-2 infection on the sncRNAs of platelets. OBJECTIVES To investigate the sorting of MK sncRNAs into platelets, and the differences in the platelet sncRNAomes of healthy donors (HDs) and COVID-19 patients. METHODS We comprehensively profiled sncRNAs from MKs cultured from cord blood-derived CD34+ cells, platelets from HDs, and platelets from patients with moderate and severe SARS-CoV-2 infection. We also comprehensively profiled Argonaute (AGO)-bound sncRNAs from the cultured MKs. RESULTS We characterized the sncRNAs in MKs and platelets and can account for ∼95% of all sequenced reads. We found that MKs primarily comprise microRNA isoforms (isomiRs), tRNA-derived fragments (tRFs), rRNA-derived fragments (rRFs), and Y RNA-derived fragments (yRFs) in comparable abundances. The platelets of HDs showed a skewed distribution by comparison: 56.7% of all sncRNAs are yRFs, 34.4% are isomiRs, and <2.0% are tRFs and rRFs. Most isomiRs in MKs and platelets are either noncanonical, nontemplated, or both. When comparing MKs and platelets from HDs, we found numerous isomiRs, tRFs, rRFs, and yRFs showing opposite enrichments or depletions, including molecules from the same parental miRNA arm, tRNA, rRNA, or Y RNA. The sncRNAome of platelets from patients with COVID-19 is skewed compared to that of HDs with only 19.8% of all sncRNAs now being yRFs, isomiRs increasing to 63.6%, and tRFs and rRFs more than tripling their presence to 6.1%. CONCLUSION The sncRNAomes of MKs and platelets are very rich and more complex than it has been believed. The evidence suggests complex mechanisms that sort MK sncRNAs into platelets. SARS-CoV-2 infection acutely alters the contents of platelets by changing the relative proportions of their sncRNAs.
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Affiliation(s)
- Stepan Nersisyan
- Computational Medicine Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Emilie Montenont
- University of Utah Molecular Medicine Program, University of Utah, Salt Lake City, Utah, USA
| | - Phillipe Loher
- Computational Medicine Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Elizabeth A Middleton
- University of Utah Molecular Medicine Program, University of Utah, Salt Lake City, Utah, USA; Division of Pulmonary Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Robert Campbell
- University of Utah Molecular Medicine Program, University of Utah, Salt Lake City, Utah, USA; Division of General Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Paul Bray
- University of Utah Molecular Medicine Program, University of Utah, Salt Lake City, Utah, USA; Division of Hematology and Hematologic Malignancies, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Isidore Rigoutsos
- Computational Medicine Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
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6
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Thibord F, Johnson AD. Sources of variability in the human platelet transcriptome. Thromb Res 2023; 231:255-263. [PMID: 37357099 DOI: 10.1016/j.thromres.2023.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/31/2023] [Accepted: 06/09/2023] [Indexed: 06/27/2023]
Abstract
Platelets are anucleated cells produced by megakaryocytes, from which they inherit all the components necessary to carry their functions. They circulate in blood vessels where they play essential roles in coagulation, wound repair or inflammation, and have been implicated in various pathological conditions such as thrombosis, viral infection or cancer progression. The importance of these cells has been established over a century ago, and effective anti-platelet medications with different mechanisms of action have since been developed. However, these therapies are not always effective and can incur adverse events, thus a better understanding of platelets molecular processes is needed to address these issues and improve our understanding of platelet functions. In recent years, an increasing number of studies have leveraged OMICs technologies to analyze their content and identify molecular signatures and mechanisms associated with platelet functions and platelet related disorders. In particular, the increased accessibility of microarrays and RNA sequencing opened the way for studies of the platelet transcriptome under a wide array of conditions. These studies revealed distinct expression profiles in diverse pathologies, which could lead to the discovery of novel biomarkers and therapeutic targets, and suggests a dynamic transcriptome that could influence platelet mechanisms. In this review, we highlight the different sources of transcript level variability in platelets while summarizing recent advances and discoveries from this emerging field.
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Affiliation(s)
- Florian Thibord
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, 73 Mt. Wayte, Suite #2, Framingham, MA 01702, USA; The Framingham Heart Study, Boston University and NHLBI, 73 Mt. Wayte Ave, Suite #2, Framingham, MA 01702, USA.
| | - Andrew D Johnson
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, 73 Mt. Wayte, Suite #2, Framingham, MA 01702, USA; The Framingham Heart Study, Boston University and NHLBI, 73 Mt. Wayte Ave, Suite #2, Framingham, MA 01702, USA
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7
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Allan HE, Vadgama A, Armstrong PC, Warner TD. Platelet ageing: A review. Thromb Res 2023; 231:214-222. [PMID: 36587993 DOI: 10.1016/j.thromres.2022.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/02/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Platelet ageing is an area of research which has gained much interest in recent years. Newly formed platelets, often referred to as reticulated platelets, young platelets or immature platelets, are defined as RNA-enriched and have long been thought to be hyper-reactive. This latter view is largely rooted in associations and observations in patient groups with shortened platelet half-lives who often present with increased proportions of newly formed platelets. Evidence from such groups suggests that an increased proportion of newly formed platelets is associated with an increased risk of thrombotic events and a reduced effectiveness of standard anti-platelet therapies. Whilst research has highlighted the existence of platelet subpopulations based on function, size and age within patient groups, the common intrinsic changes which occur as platelets age within the circulation are only just being explored. By understanding the changes that occur during the natural ageing processes of platelets, we may be able to identify the triggers for alterations in platelet life span and platelet reactivity. Here we review research on platelet ageing in the context of health and disease, paying particular attention to the experimental approaches taken and the robustness of conclusions that can be drawn.
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Affiliation(s)
- Harriet E Allan
- Centre for Immunobiology, Blizard Institute, Barts & the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom.
| | - Ami Vadgama
- Centre for Immunobiology, Blizard Institute, Barts & the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Paul C Armstrong
- Centre for Immunobiology, Blizard Institute, Barts & the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Timothy D Warner
- Centre for Immunobiology, Blizard Institute, Barts & the London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
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8
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Miao S, Zhang Q. Circulating circRNA: a social butterfly in tumors. Front Oncol 2023; 13:1203696. [PMID: 37546422 PMCID: PMC10401440 DOI: 10.3389/fonc.2023.1203696] [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: 04/11/2023] [Accepted: 06/20/2023] [Indexed: 08/08/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of single-stranded non-coding RNAs that form circular structures through irregular splicing or post-splicing events. CircRNAs are abnormally expressed in many cancers and regulate the occurrence and development of tumors. Circulating circRNAs are cell-free circRNAs present in peripheral blood, they are considered promising biomarkers due to their high stability. In recent years, more and more studies have revealed that circulating circRNAs participate in various cellular communication and regulate the occurrence and development of tumors, which involve many pathological processes such as tumorigenesis, tumor-related immunity, tumor angiogenesis, and tumor metastasis. Understanding the role of cell communication mediated by circulating circRNAs in tumor will further reveal the value and significance behind their use as biomarkers and potential therapeutic targets. In this review, we summarize the recent findings and provide an overview of the cell-cell communication mediated by circulating circRNAs, aiming to explore the role and application value of circulating circRNAs in tumors.
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Affiliation(s)
- Shuo Miao
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
- School of Basic Medicine, Qingdao University, Qingdao, China
| | - Qingsong Zhang
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
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9
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Huber LT, Kraus JM, Ezić J, Wanli A, Groth M, Laban S, Hoffmann TK, Wollenberg B, Kestler HA, Brunner C. Liquid biopsy: an examination of platelet RNA obtained from head and neck squamous cell carcinoma patients for predictive molecular tumor markers. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2023; 4:422-446. [PMID: 37455825 PMCID: PMC10344902 DOI: 10.37349/etat.2023.00143] [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: 11/16/2022] [Accepted: 03/01/2023] [Indexed: 07/18/2023] Open
Abstract
Aim Recently, a tumor cell-platelet interaction was identified in different tumor entities, resulting in a transfer of tumor-derived RNA into platelets, named further "tumor-educated platelets (TEP)". The present pilot study aims to investigate whether such a tumor-platelet transfer of RNA occurs also in patients suffering from head and neck squamous cell carcinoma (HNSCC). Methods Sequencing analysis of RNA derived from platelets of tumor patients (TPs) and healthy donors (HDs) were performed. Subsequently, quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used for verification of differentially expressed genes in platelets from TPs and HDs in a second cohort of patients and HDs. Data were analyzed by applying bioinformatic tools. Results Sequencing of RNA derived from the tumor as well as from platelets of TPs and HDs revealed 426 significantly differentially existing RNA, at which 406 RNA were more and 20 RNA less abundant in platelets from TPs in comparison to that of HDs. In TPs' platelets, abundantly existing RNA coding for 49 genes were detected, characteristically expressed in epithelial cells and RNA, the products of which are involved in tumor progression. Applying bioinformatic tools and verification on a second TP/HD cohort, collagen type I alpha 1 chain (COL1A1) and zinc finger protein 750 (ZNF750) were identified as the strongest potentially platelet-RNA-sequencing (RNA-seq)-based biomarkers for HNSCC. Conclusions These results indicate a transfer of tumor-derived messenger RNA (mRNA) into platelets of HNSCC patients. Therefore, analyses of a patient's platelet RNA could be an efficient option for liquid biopsy in order to diagnose HNSCC or to monitor tumorigenesis as well as therapeutic responses at any time and in real time.
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Affiliation(s)
- Lisa T. Huber
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Johann M. Kraus
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Jasmin Ezić
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Amin Wanli
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Marco Groth
- Leibniz Institute of Aging – Fritz Lipmann Institute, CF DNA sequencing, 07745 Jena, Germany
| | - Simon Laban
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Thomas K. Hoffmann
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Barbara Wollenberg
- Clinic for Otorhinolaryngology, Head and Neck Surgery, Technical University of Munich, 80333 Munich, Germany
| | - Hans A. Kestler
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Cornelia Brunner
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
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10
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Abstract
COVID-19 is characterized by dysregulated thrombosis and coagulation that can increase mortality in patients. Platelets are fast responders to pathogen presence, alerting the surrounding immune cells and contributing to thrombosis and intravascular coagulation. The SARS-CoV-2 genome has been found in platelets from patients with COVID-19, and its coverage varies according to the method of detection, suggesting direct interaction of the virus with these cells. Antibodies against Spike and Nucleocapsid have confirmed this platelet-viral interaction. This review discusses the immune, prothrombotic, and procoagulant characteristics of platelets observed in patients with COVID-19. We outline the direct and indirect interaction of platelets with SARS-CoV-2, the contribution of the virus to programmed cell death pathway activation in platelets and the consequent extracellular vesicle release. We discuss platelet activation and immunothrombosis in patients with COVID-19, the effect of Spike on platelets, and possible activation of platelets by classical platelet activation triggers as well as contribution of platelets to complement activation. As COVID-19-mediated thrombosis and coagulation are still not well understood in vivo, we discuss available murine models and mouse adaptable strains.
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Affiliation(s)
- Anthony Sciaudone
- Department of Medicine, Divisions of Cardiovascular Medicine (A.S., H.C., M.K.), University of Massachusetts Chan Medical School, Worcester, MA
| | - Heather Corkrey
- Department of Medicine, Divisions of Cardiovascular Medicine (A.S., H.C., M.K.), University of Massachusetts Chan Medical School, Worcester, MA
| | - Fiachra Humphries
- Innate Immunity (F.H.). University of Massachusetts Chan Medical School, Worcester, MA
| | - Milka Koupenova
- Department of Medicine, Divisions of Cardiovascular Medicine (A.S., H.C., M.K.), University of Massachusetts Chan Medical School, Worcester, MA
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11
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Zhang X, Yu S, Li X, Wen X, Liu S, Zu R, Ren H, Li T, Yang C, Luo H. Research progress on the interaction between oxidative stress and platelets: Another avenue for cancer? Pharmacol Res 2023; 191:106777. [PMID: 37080257 DOI: 10.1016/j.phrs.2023.106777] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 04/06/2023] [Accepted: 04/18/2023] [Indexed: 04/22/2023]
Abstract
Oxidative stress (OS) is a chemical imbalance between an oxidant and an antioxidant, causing damage to redox signaling and control or causing molecular damage. Unbalanced oxidative metabolism can produce excessive reactive oxygen species (ROS). These excess ROS can cause drastic changes in platelet metabolism and further affect platelet function. It will also lead to an increase in platelet procoagulant phenotype and cell apoptosis, which will increase the risk of thrombosis. The creation of ROS and subsequent platelet activation, adhesion, and recruitment are then further encouraged in an auto-amplifying loop by ROS produced from platelets. Meanwhile, cancer cells produce a higher concentration of ROS due to their fast metabolism and high proliferation rate. However, excessive ROS can result in damage to and modification of cellular macromolecules. The formation of cancer and its progression is strongly associated with oxidative stress and the resulting oxidative damage. In addition, platelets are an important part of the tumor microenvironment, and there is a significant cross-communication between platelets and cancer cells. Cancer cells alter the activation status of platelets, their RNA spectrum, proteome, and other properties. The "cloaking" of cancer cells by platelets providing physical protection,avoiding destruction from shear stress and the attack of immune cells, promoting tumor cell invasion.We explored the vicious circle interaction between ROS, platelets, and cancer in this review, and we believe that ROS can play a stimulative role in tumor growth and metastasis through platelets.
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Affiliation(s)
- Xingmei Zhang
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China; College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Sisi Yu
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China
| | - Xiaobo Li
- Molecular Diagnostic Laboratory of Department of Microbiology and Immunology, 3201 Hospital Affiliated to Medical College of Xi'an Jiaotong University, Hanzhong 723099, China
| | - Xiaoxia Wen
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Shan Liu
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Ruiling Zu
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China
| | - Hanxiao Ren
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China.
| | - Chaoguo Yang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610042, China.
| | - Huaichao Luo
- Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041 China.
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12
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Dissecting Platelet's Role in Viral Infection: A Double-Edged Effector of the Immune System. Int J Mol Sci 2023; 24:ijms24032009. [PMID: 36768333 PMCID: PMC9916939 DOI: 10.3390/ijms24032009] [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: 11/21/2022] [Revised: 12/11/2022] [Accepted: 12/23/2022] [Indexed: 01/20/2023] Open
Abstract
Platelets play a major role in the processes of primary hemostasis and pathological inflammation-induced thrombosis. In the mid-2000s, several studies expanded the role of these particular cells, placing them in the "immune continuum" and thus changing the understanding of their function in both innate and adaptive immune responses. Among the many receptors they express on their surface, platelets express Toll-Like Receptors (TLRs), key receptors in the inflammatory cell-cell reaction and in the interaction between innate and adaptive immunity. In response to an infectious stimulus, platelets will become differentially activated. Platelet activation is variable depending on whether platelets are activated by a hemostatic or pathogen stimulus. This review highlights the role that platelets play in platelet modulation count and adaptative immune response during viral infection.
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13
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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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14
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Airapetov MI, Eresko SO, Bychkov ER, Lebedev AA, Shabanov PD. Effect of Ethanol on Platelet Biology. BIOCHEMISTRY (MOSCOW), SUPPLEMENT SERIES B: BIOMEDICAL CHEMISTRY 2022. [DOI: 10.1134/s1990750822040023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Leng Q, Ding J, Dai M, Liu L, Fang Q, Wang DW, Wu L, Wang Y. Insights Into Platelet-Derived MicroRNAs in Cardiovascular and Oncologic Diseases: Potential Predictor and Therapeutic Target. Front Cardiovasc Med 2022; 9:879351. [PMID: 35757325 PMCID: PMC9218259 DOI: 10.3389/fcvm.2022.879351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 05/24/2022] [Indexed: 11/28/2022] Open
Abstract
Non-communicable diseases (NCDs), represented by cardiovascular diseases and cancer, have been the leading cause of death globally. Improvements in mortality from cardiovascular (CV) diseases (decrease of 14%/100,000, United States) or cancers (increase 7.5%/100,000, United States) seem unsatisfactory during the past two decades, and so the search for innovative and accurate biomarkers of early diagnosis and prevention, and novel treatment strategies is a valuable clinical and economic endeavor. Both tumors and cardiovascular system are rich in angiological systems that maintain material exchange, signal transduction and distant regulation. This pattern determines that they are strongly influenced by circulating substances, such as glycolipid metabolism, inflammatory homeostasis and cyclic non-coding RNA and so forth. Platelets, a group of small anucleated cells, inherit many mature proteins, mRNAs, and non-coding RNAs from their parent megakaryocytes during gradual formation and manifest important roles in inflammation, angiogenesis, atherosclerosis, stroke, myocardial infarction, diabetes, cancer, and many other diseases apart from its classical function in hemostasis. MicroRNAs (miRNAs) are a class of non-coding RNAs containing ∼22 nucleotides that participate in many key cellular processes by pairing with mRNAs at partially complementary binding sites for post-transcriptional regulation of gene expression. Platelets contain fully functional miRNA processors in their microvesicles and are able to transport their miRNAs to neighboring cells and regulate their gene expression. Therefore, the importance of platelet-derived miRNAs for the human health is of increasing interest. Here, we will elaborate systematically the roles of platelet-derived miRNAs in cardiovascular disease and cancer in the hope of providing clinicians with new ideas for early diagnosis and therapeutic strategies.
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16
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Bongiovanni D, Han J, Klug M, Kirmes K, Viggiani G, von Scheidt M, Schreiner N, Condorelli G, Laugwitz KL, Bernlochner I. Role of Reticulated Platelets in Cardiovascular Disease. Arterioscler Thromb Vasc Biol 2022; 42:527-539. [PMID: 35321562 DOI: 10.1161/atvbaha.121.316244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Human platelets differ considerably with regard to their size, RNA content and thrombogenicity. Reticulated platelets (RPs) are young, hyper-reactive platelets that are newly released from the bone marrow. They are larger and contain more RNA compared to older platelets. In comparison to more mature platelets, they exhibit a significantly higher thrombogenicity and are known to be elevated in patients with an increased platelet turnover such as, diabetics and after acute myocardial infarction. Several studies have shown that RPs correlate with an insufficient antiplatelet response to aspirin and specific P2Y12 receptor inhibitors. In addition, RPs are promising novel biomarkers for the prediction of adverse cardiovascular events in cardiovascular disease. However, the reason for RPs intrinsic hyper-reactivity and their association with ischemic events is not completely understood and the biology of RPs is still under investigation. We here present a structured review of preclinical and clinical findings concerning the role of RPs in cardiovascular disease.
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Affiliation(s)
- Dario Bongiovanni
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.).,Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Lugano, Switzerland (D.B.).,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Germany (D.B., M.K., M.v.S., K.-L.L., I.B.).,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy (D.B., G.C.).,IRCCS Humanitas Research Hospital, Department of Cardiovascular Medicine, Rozzano, Milan, Italy (D.B., G.C.)
| | - Jiaying Han
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.)
| | - Melissa Klug
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.).,Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Germany (M.K.)
| | - Kilian Kirmes
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.).,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Germany (D.B., M.K., M.v.S., K.-L.L., I.B.)
| | - Giacomo Viggiani
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.)
| | - Moritz von Scheidt
- German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Germany (D.B., M.K., M.v.S., K.-L.L., I.B.).,Department of Cardiology, Deutsches Herzzentrum München, Technical University of Munich, Germany (M.v.S.)
| | - Nina Schreiner
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.)
| | - Gianluigi Condorelli
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy (D.B., G.C.).,IRCCS Humanitas Research Hospital, Department of Cardiovascular Medicine, Rozzano, Milan, Italy (D.B., G.C.)
| | - Karl-Ludwig Laugwitz
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.).,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Germany (D.B., M.K., M.v.S., K.-L.L., I.B.)
| | - Isabell Bernlochner
- Department of Internal Medicine I, School of Medicine, University hospital rechts der Isar, Technical University of Munich, Germany (D.B., J.H., M.K., K.K., G.V., N.S., K.-L.L., I.B.).,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Germany (D.B., M.K., M.v.S., K.-L.L., I.B.)
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17
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Comprehensive Characterization of Platelet-Enriched MicroRNAs as Biomarkers of Platelet Activation. Cells 2022; 11:cells11081254. [PMID: 35455934 PMCID: PMC9030873 DOI: 10.3390/cells11081254] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 12/13/2022] Open
Abstract
Dysregulation of platelet function is causally connected to thrombus formation and cardiovascular diseases. Therefore, assessing platelet reactivity is crucial. However, current platelet function tests come with pitfalls, limiting clinical use. Plasma miRNA signatures have been suggested as novel biomarkers for predicting/diagnosing cardiovascular diseases and monitoring antiplatelet therapy. Here, we provide results from a comprehensive study on the feasibility of using circulatory platelet miRNAs as surrogate markers of platelet activation. We performed small RNA-Seq on different blood cell types to confirm known and identify novel platelet-enriched miRNAs and validated a panel of 16 miRNAs using RT-qPCR. To identify the main carrier of these blood-based platelet miRNAs, we enriched and analyzed distinct microvesicle populations. Platelets were stimulated with GPVI and P2Y12 agonists in vitro to monitor the release of the selected miRNAs following activation. Finally, the miRNA panel was also measured in plasma from mice undergoing the Folts intervention (recurrent thrombus formation in the carotid artery). Applying an unbiased bioinformatics-supported workflow to our NGS data, we were able to confirm a panel of previously established miRNA biomarker candidates and identify three new candidates (i.e., miR-199a-3p, miR-151a-5p, and miR-148b-3p). Basal levels of platelet-derived miRNAs in plasma were mainly complexed with proteins, not extracellular vesicles. We show that changes in miRNA levels due to platelet activation are detectable using RT-qPCR. In addition, we highlight limitations of studying the in vitro release of miRNAs from platelets. In vivo thrombosis resulted in significant elevations of platelet-derived miRNA levels in mice. In conclusion, we provide in-depth evidence that activated platelets release miRNAs, resulting in measurable changes in circulatory miRNA levels, rendering them promising biomarker candidates.
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18
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Airapetov MI, Eresko SO, Bychkov ER, Lebedev AA, Shabanov PD. [Effect of ethanol on platelet biology]. BIOMEDITSINSKAIA KHIMIIA 2022; 68:81-92. [PMID: 35485482 DOI: 10.18097/pbmc20226802081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In recent years, interest in the study of platelets, significantly increased due to recent discoveries providing convincing evidence that their functions by are not limited to their participation in the blood coagulation mechanism. Many works are devoted to the study of the functional state of platelets under conditions of acute and chronic alcohol exposure. The results of such studies can be useful for the development of new markers of the degree of alcohol intoxication of the body for the subsequent choice of the method drug correction of disorders caused by acute or chronic alcohol effects. The review summarizes results in vivo and in vitro of studies performed during more than 60 years on the effect of ethanol on the biogenesis, number, morphology and biochemistry of platelets.
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Affiliation(s)
- M I Airapetov
- Department of Neuropharmacology, Institute of Experimental Medicine, Saint Petersburg, Russia; Department of Pharmacology, St. Petersburg State Pediatric Medical University, Saint Petersburg, Russia
| | - S O Eresko
- Department of Neuropharmacology, Institute of Experimental Medicine, Saint Petersburg, Russia; Research and Training Center of Molecular and Cellular Technologies, Saint Petersburg, Russia
| | - E R Bychkov
- Department of Neuropharmacology, Institute of Experimental Medicine, Saint Petersburg, Russia
| | - A A Lebedev
- Department of Neuropharmacology, Institute of Experimental Medicine, Saint Petersburg, Russia
| | - P D Shabanov
- Department of Neuropharmacology, Institute of Experimental Medicine, Saint Petersburg, Russia; Department of Pharmacology, Kirov Military Medical Academy, Saint Petersburg, Russia
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19
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Ballerini P, Contursi A, Bruno A, Mucci M, Tacconelli S, Patrignani P. Inflammation and Cancer: From the Development of Personalized Indicators to Novel Therapeutic Strategies. Front Pharmacol 2022; 13:838079. [PMID: 35308229 PMCID: PMC8927697 DOI: 10.3389/fphar.2022.838079] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/09/2022] [Indexed: 12/15/2022] Open
Abstract
Colorectal (CRC) and hepatocellular carcinoma (HCC) are associated with chronic inflammation, which plays a role in tumor development and malignant progression. An unmet medical need in these settings is the availability of sensitive and specific noninvasive biomarkers. Their use will allow surveillance of high-risk populations, early detection, and monitoring of disease progression. Moreover, the characterization of specific fingerprints of patients with nonalcoholic fatty liver disease (NAFLD) without or with nonalcoholic steatohepatitis (NASH) at the early stages of liver fibrosis is necessary. Some lines of evidence show the contribution of platelets to intestinal and liver inflammation. Thus, low-dose Aspirin, an antiplatelet agent, reduces CRC and liver cancer incidence and mortality. Aspirin also produces antifibrotic effects in NAFLD. Activated platelets can trigger chronic inflammation and tissue fibrosis via the release of soluble mediators, such as thromboxane (TX) A2 and tumor growth factor (TGF)-β, and vesicles containing genetic material (including microRNA). These platelet-derived products contribute to cyclooxygenase (COX)-2 expression and prostaglandin (PG)E2 biosynthesis by tumor microenvironment cells, such as immune and endothelial cells and fibroblasts, alongside cancer cells. Enhanced COX-2-dependent PGE2 plays a crucial role in chronic inflammation and promotes tumor progression, angiogenesis, and metastasis. Antiplatelet agents can indirectly prevent the induction of COX-2 in target cells by inhibiting platelet activation. Differently, selective COX-2 inhibitors (coxibs) block the activity of COX-2 expressed in the tumor microenvironment and cancer cells. However, coxib chemopreventive effects are hampered by the interference with cardiovascular homeostasis via the coincident inhibition of vascular COX-2-dependent prostacyclin biosynthesis, resulting in enhanced risk of atherothrombosis. A strategy to improve anti-inflammatory agents' use in cancer prevention could be to develop tissue-specific drug delivery systems. Platelet ability to interact with tumor cells and transfer their molecular cargo can be employed to design platelet-mediated drug delivery systems to enhance the efficacy and reduce toxicity associated with anti-inflammatory agents in these settings. Another peculiarity of platelets is their capability to uptake proteins and transcripts from the circulation. Thus, cancer patient platelets show specific proteomic and transcriptomic expression profiles that could be used as biomarkers for early cancer detection and disease monitoring.
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Affiliation(s)
- Patrizia Ballerini
- Center for Advanced Studies and Technology (CAST), Chieti, Italy
- Department of Innovative Technologies in Medicine and Dentistry, Chieti, Italy
| | - Annalisa Contursi
- Center for Advanced Studies and Technology (CAST), Chieti, Italy
- Department of Neuroscience, Imaging and Clinical Science, G. d’Annunzio University, Chieti, Italy
| | - Annalisa Bruno
- Center for Advanced Studies and Technology (CAST), Chieti, Italy
- Department of Neuroscience, Imaging and Clinical Science, G. d’Annunzio University, Chieti, Italy
| | - Matteo Mucci
- Center for Advanced Studies and Technology (CAST), Chieti, Italy
- Department of Neuroscience, Imaging and Clinical Science, G. d’Annunzio University, Chieti, Italy
| | - Stefania Tacconelli
- Center for Advanced Studies and Technology (CAST), Chieti, Italy
- Department of Neuroscience, Imaging and Clinical Science, G. d’Annunzio University, Chieti, Italy
| | - Paola Patrignani
- Center for Advanced Studies and Technology (CAST), Chieti, Italy
- Department of Neuroscience, Imaging and Clinical Science, G. d’Annunzio University, Chieti, Italy
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20
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Finding the “switch” in platelet activation prediction of key mediators involved in reversal of platelet activation using a novel network biology approach. J Proteomics 2022; 261:104577. [DOI: 10.1016/j.jprot.2022.104577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/24/2022] [Accepted: 03/23/2022] [Indexed: 11/15/2022]
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21
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Nicolet BP, Jansen SBG, Heideveld E, Ouwehand WH, van den Akker E, von Lindern M, Wolkers MC. Circular RNAs exhibit limited evidence for translation, or translation regulation of the mRNA counterpart in terminal hematopoiesis. RNA (NEW YORK, N.Y.) 2022; 28:194-209. [PMID: 34732567 PMCID: PMC8906552 DOI: 10.1261/rna.078754.121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Each day, about 1012 erythrocytes and platelets are released into the bloodstream. This substantial output from hematopoietic stem cells is tightly regulated by transcriptional and epigenetic factors. Whether and how circular RNAs (circRNAs) contribute to the differentiation and/or identity of hematopoietic cells is to date not known. We recently reported that erythrocytes and platelets contain the highest levels and numbers of circRNAs among hematopoietic cells. Here, we provide the first detailed analysis of circRNA expression during erythroid and megakaryoid differentiation. CircRNA expression not only significantly increased upon enucleation, but also had limited overlap between progenitor cells and mature cells, suggesting that circRNA expression stems from regulated processes rather than resulting from mere accumulation. To study circRNA function in hematopoiesis, we first compared the expression levels of circRNAs with the translation efficiency of their mRNA counterpart. We found that only one out of 2531 (0.04%) circRNAs associated with mRNA-translation regulation. Furthermore, irrespective of thousands of identified putative open reading frames, deep ribosome-footprinting sequencing, and mass spectrometry analysis provided little evidence for translation of endogenously expressed circRNAs. In conclusion, circRNAs alter their expression profile during terminal hematopoietic differentiation, yet their contribution to regulate cellular processes remains enigmatic.
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Affiliation(s)
- Benoit P Nicolet
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066CX Amsterdam, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Sjoert B G Jansen
- Department of Haematology, University of Cambridge and NHS Blood and Transplant, Cambridge CB2 0AW, United Kingdom
| | - Esther Heideveld
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066CX Amsterdam, The Netherlands
| | - Willem H Ouwehand
- Department of Haematology, University of Cambridge and NHS Blood and Transplant, Cambridge CB2 0AW, United Kingdom
| | - Emile van den Akker
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066CX Amsterdam, The Netherlands
| | - Marieke von Lindern
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066CX Amsterdam, The Netherlands
| | - Monika C Wolkers
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066CX Amsterdam, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
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22
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Abstract
Classically, platelets have been described as the cellular blood component that mediates hemostasis and thrombosis. This important platelet function has received significant research attention for >150 years. The immune cell functions of platelets are much less appreciated. Platelets interact with and activate cells of all branches of immunity in response to pathogen exposures and infection, as well as in response to sterile tissue injury. In this review, we focus on innate immune mechanisms of platelet activation, platelet interactions with innate immune cells, as well as the intersection of platelets and adaptive immunity. The immune potential of platelets is dependent in part on their megakaryocyte precursor providing them with the molecular composition to be first responders and immune sentinels in initiating and orchestrating coordinated pathogen immune responses. There is emerging evidence that extramedullary megakaryocytes may be immune differentiated compared with bone marrow megakaryocytes, but the physiological relevance of immunophenotypic differences are just beginning to be explored. These concepts are also discussed in this review. The immune functions of the megakaryocyte/platelet lineage have likely evolved to coordinate the need to repair a vascular breach with the simultaneous need to induce an immune response that may limit pathogen invasion once the blood is exposed to an external environment.
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Affiliation(s)
- Milka Koupenova
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Chan Medical School, 368 Plantation Street, Worcester, MA 01605
| | - Alison Livada
- Aab Cardiovascular Research Institute, University of Rochester Medical Center, Rochester, NY 14642
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY 14642
| | - Craig N. Morrell
- Aab Cardiovascular Research Institute, University of Rochester Medical Center, Rochester, NY 14642
- Department of Medicine, University of Rochester Medical Center, Rochester, NY 14642
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY 14642
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14642
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23
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Zhao Y, Cui S, Wang Y, Xu R. The Extensive Regulation of MicroRNA in Immune Thrombocytopenia. Clin Appl Thromb Hemost 2022; 28:10760296221093595. [PMID: 35536600 PMCID: PMC9096216 DOI: 10.1177/10760296221093595] [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] [Indexed: 11/23/2022] Open
Abstract
MicroRNA (miRNA) is a small, single-stranded, non-coding RNA molecule that plays
a variety of key roles in different biological processes through
post-transcriptional regulation of gene expression. MiRNA has been proved to be
a variety of cellular processes involved in development, differentiation, signal
transduction, and is an important regulator of immune and autoimmune diseases.
Therefore, it may act as potent modulators of the immune system and play an
important role in the development of several autoimmune diseases. Immune
thrombocytopenia (ITP) is an autoimmune systemic disease characterized by a low
platelet count. Several studies suggest that like other autoimmune disorders,
miRNAs are deeply involved in the pathogenesis of ITP, interacting with the
function of innate and adaptive immune responses. In this review, we discuss
emerging knowledge about the function of miRNAs in ITP and describe miRNAs in
terms of their role in the immune system and autoimmune response. These findings
suggest that miRNA may be a useful therapeutic target for ITP by regulating the
immune system. In the future, we need to have a more comprehensive understanding
of miRNAs and how they regulate the immune system of patients with ITP.
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Affiliation(s)
- Yuerong Zhao
- 74738Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Siyuan Cui
- Department of Hematology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yan Wang
- Department of Hematology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.,Institute of Hematology, 74738Shandong University of Traditional Chinese Medicine, Jinan, China.,Shandong Provincial Health Commission Key Laboratory of Hematology of Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ruirong Xu
- Department of Hematology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.,Institute of Hematology, 74738Shandong University of Traditional Chinese Medicine, Jinan, China.,Shandong Provincial Health Commission Key Laboratory of Hematology of Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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24
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Daniels S, Wei H, van Tongeren M, Denning DW. Are platelet volume indices of clinical use in COVID-19? A systematic review. Front Cardiovasc Med 2022; 9:1031092. [PMID: 36329999 PMCID: PMC9623063 DOI: 10.3389/fcvm.2022.1031092] [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: 08/29/2022] [Accepted: 10/03/2022] [Indexed: 12/15/2022] Open
Abstract
Background The incidence of thrombotic complications is high in COVID-19 patients with severe disease. As key regulators of thrombus formation, platelets likely play a crucial role as mediators of severe acute respiratory syndrome coronavirus 2 associated pathogenesis. Studies have reported that parameters reflecting platelet size, known as platelet volume indices (PVI), are raised in patients with thrombosis and can predict poor outcomes. This systematic review evaluates the potential for PVI to be used as a predictor of COVID-19 morbidity and mortality. Methods English and Chinese databases were searched electronically to identify studies reporting data on mean platelet volume, platelet distribution width or platelet-large cell ratio in COVID-19 patients. Included articles underwent a quality rating and descriptive narrative analysis. Results Thirty-two studies were included in the systematic review. The results show a general trend for PVI to be raised in severe COVID-19 patients and non-survivors, with 14 studies reporting significant differences of baseline PVI between severe and mild disease. Nonetheless, longitudinal studies showed varying PVI trends over the course of the disease and evidence for PVI to be associated with disease progression was limited. The quality rating of 12 studies was poor, 16 were rated fair and four were good. Most studies were retrospective in design, used small study populations and did not consider confounding factors that influence platelet volume. Studies also contained technical flaws in PVI measurement, limiting the reliability of the results. Conclusion The evidence on the clinical usefulness of PVI is greatly limited by the lack of prospective evaluation, together with technical problems in measuring PVI. Carefully designed prospective studies are warranted. Systematic review registration https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=304305, identifier CRD42022304305.
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Affiliation(s)
- Sarah Daniels
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, University of Manchester, Manchester, United Kingdom.,Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Hua Wei
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, University of Manchester, Manchester, United Kingdom.,Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Martie van Tongeren
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, University of Manchester, Manchester, United Kingdom.,Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - David W Denning
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom.,Division of Evolution, Infection and Genomics, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
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25
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Allan HE, Hayman MA, Marcone S, Chan MV, Edin ML, Maffucci T, Joshi A, Menke L, Crescente M, Mayr M, Zeldin DC, Armstrong PC, Warner TD. Proteome and functional decline as platelets age in the circulation. J Thromb Haemost 2021; 19:3095-3112. [PMID: 34390534 PMCID: PMC8604765 DOI: 10.1111/jth.15496] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/28/2021] [Accepted: 08/11/2021] [Indexed: 01/20/2023]
Abstract
BACKGROUND Platelets circulate in the blood of healthy individuals for approximately 7-10 days regulated by finely balanced processes of production and destruction. As platelets are anucleate we reasoned that their protein composition would change as they age and that this change would be linked to alterations in structure and function. OBJECTIVE To isolate platelets of different ages from healthy individuals to test the hypothesis that changes in protein content cause alterations in platelet structure and function. METHODS Platelets were separated according to thiazole orange fluorescence intensity as a surrogate indicator of mRNA content and so a marker of platelet age and then subjected to proteomics, imaging, and functional assays to produce an in-depth analysis of platelet composition and function. RESULTS Total protein content was 45 ± 5% lower in old platelets compared to young platelets. Predictive proteomic pathway analysis identified associations with 28 biological processes, notably higher hemostasis in young platelets whilst apoptosis and senescence were higher in old platelets. Further studies confirmed platelet ageing was linked to a decrease in cytoskeletal protein and associated capability to spread and adhere, a reduction in mitochondria number, and lower calcium dynamics and granule secretion. CONCLUSIONS Our findings demonstrate changes in protein content are linked to alterations in function as platelets age. This work delineates physical and functional changes in platelets as they age and serves as a base to examine differences associated with altered mean age of platelet populations in conditions such as immune thrombocytopenia and diabetes.
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Affiliation(s)
- Harriet E. Allan
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
| | - Melissa A. Hayman
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
| | - Simone Marcone
- Department of Surgery, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Melissa V. Chan
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
| | - Matthew L. Edin
- National Institutes of Health, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Tania Maffucci
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
| | - Abhishek Joshi
- King’s British Heart Foundation Centre, Kings College London, London, United Kingdom
| | - Laura Menke
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
| | - Marilena Crescente
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
| | - Manuel Mayr
- King’s British Heart Foundation Centre, Kings College London, London, United Kingdom
| | - Darryl C. Zeldin
- National Institutes of Health, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Paul C. Armstrong
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
| | - Timothy D. Warner
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University London, London, United Kingdom
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26
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Myers RA, Ortel TL, Waldrop A, Dave S, Ginsburg GS, Voora D. Aspirin effects on platelet gene expression are associated with a paradoxical, increase in platelet function. Br J Clin Pharmacol 2021; 88:2074-2083. [PMID: 34705291 PMCID: PMC9007832 DOI: 10.1111/bcp.15127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/10/2021] [Accepted: 10/18/2021] [Indexed: 01/04/2023] Open
Abstract
Aspirin has known effects beyond inhibiting platelet cyclooxygenase-1 (COX-1) that have been incompletely characterized. Transcriptomics can comprehensively characterize the on- and off-target effects of medications. We used a systems pharmacogenomics approach of aspirin exposure in volunteers coupled with serial platelet function and purified platelet mRNA sequencing to test the hypothesis that aspirin's effects on the platelet transcriptome are associated with platelet function. We prospectively recruited 74 adult volunteers for a randomized crossover study of 81- vs. 325 mg/day, each for 4 weeks. Using mRNA sequencing of purified platelets collected before and after each 4-week exposure, we identified 208 aspirin-responsive genes with no evidence for dosage effects. In independent cohorts of healthy volunteers and patients with diabetes, we validated aspirin's effects on five genes: EIF2S3, CHRNB1, EPAS1, SLC9A3R2 and HLA-DRA. Functional characterization of the effects of aspirin on mRNA as well as platelet ribosomal RNA demonstrated that aspirin may act as an inhibitor of protein synthesis. Database searches for small molecules that mimicked the effects of aspirin on platelet gene expression in vitro identified aspirin but no other molecules that share aspirin's known mechanisms of action. The effects of aspirin on platelet mRNA were correlated with higher levels of platelet function both at baseline and after aspirin exposure-an effect that counteracts aspirin's known antiplatelet effect. In summary, this work collectively demonstrates a dose-independent effect of aspirin on the platelet transcriptome that counteracts the well-known antiplatelet effects of aspirin.
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Affiliation(s)
- Rachel A Myers
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Thomas L Ortel
- Division of Hematology, Department of Medicine, Duke University Medical Center, Durham, NC, United States
| | - Alexander Waldrop
- Center for Genomics and Computational Biology, Duke University, Durham, NC, United States
| | - Sandeep Dave
- Center for Genomics and Computational Biology, Duke University, Durham, NC, United States
| | - Geoffrey S Ginsburg
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Deepak Voora
- Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, Durham, NC, United States
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27
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Izzi B, Gialluisi A, Gianfagna F, Orlandi S, De Curtis A, Magnacca S, Costanzo S, Di Castelnuovo A, Donati MB, de Gaetano G, Hoylaerts MF, Cerletti C, Iacoviello L. Platelet Distribution Width Is Associated with P-Selectin Dependent Platelet Function: Results from the Moli-Family Cohort Study. Cells 2021; 10:cells10102737. [PMID: 34685717 PMCID: PMC8535046 DOI: 10.3390/cells10102737] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 10/09/2021] [Indexed: 12/12/2022] Open
Abstract
Defined as an index of platelet size heterogeneity, the platelet distribution width (PDW) is still a poorly characterized marker of platelet function in (sub)clinical disease. We presently validated PDW as a marker of P-selectin dependent platelet activation in the Moli-family cohort. Platelet-bound P-selectin and platelet/leukocyte mixed aggregates were measured by flow cytometry in freshly collected venous blood, both before and after in vitro platelet activation, and coagulation time was assessed in unstimulated and LPS- or TNFα-stimulated whole blood. Closure Times (CT) were measured in a Platelet Function Analyzer (PFA)-100. Multivariable linear mixed effect regression models (with age, sex and platelet count as fixed and family structure as random effect) revealed PDW to be negatively associated with platelet P-selectin, platelet/leukocyte aggregates and von Willebrand factor (VWF), and positively with PFA-100 CT, and LPS- and TNF-α-stimulated coagulation times. With the exception of VWF, all relationships were sex-independent. In contrast, no association was found between mean platelet volume (MPV) and these variables. PDW seems a simple, useful marker of ex vivo and in vitro P-selectin dependent platelet activation. Investigations of larger cohorts will define the usefulness of PDW as a risk predictor of thrombo-inflammatory conditions where activated platelets play a contributing role.
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Affiliation(s)
- Benedetta Izzi
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
- Correspondence:
| | - Alessandro Gialluisi
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
| | - Francesco Gianfagna
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
- Mediterranea Cardiocentro, 80133 Napoli, Italy; (S.M.); (A.D.C.)
| | - Sabatino Orlandi
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
| | - Amalia De Curtis
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
| | - Sara Magnacca
- Mediterranea Cardiocentro, 80133 Napoli, Italy; (S.M.); (A.D.C.)
| | - Simona Costanzo
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
| | | | - Maria Benedetta Donati
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
| | - Giovanni de Gaetano
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
| | - Marc F. Hoylaerts
- Center for Molecular and Vascular Biology, Department of Cardiovascular Sciences, University of Leuven, 3000 Leuven, Belgium;
| | - Chiara Cerletti
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
| | - Licia Iacoviello
- Department of Epidemiology and Prevention, IRCCS NEUROMED, 86077 Pozzilli, Italy; (A.G.); (S.O.); (A.D.C.); (S.C.); (M.B.D.); (G.d.G.); (C.C.); (L.I.)
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
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28
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Autologous Biological Vitamin-C-added (ABC) Filler for Facial Volume Restoration. Aesthetic Plast Surg 2021; 45:2328-2337. [PMID: 33973050 DOI: 10.1007/s00266-021-02297-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 04/01/2021] [Indexed: 12/29/2022]
Abstract
PURPOSE Face rejuvenation procedures with injectable agents continue to gain popularity. Nowadays, a variety of commercial products are available as filler material. Ideal fillers should be inexpensive, easily obtainable, nontoxic, and biocompatible. The aim of this study is to report a clinical perspective for an appropriate, feasible, and inexpensive protocol of a stable, autologous biological filler for facial volume restoring without any commercial kits. METHODS Eight patients were investigated who underwent facial injection with ABC filler. Eleven ml of whole blood was placed in standard tubes containing anticoagulant and for each patient, 8 tubes were prepared. After the centrifugation at 1630 xg for 5 minutes, the upper plasma was taken, calcium was added and cooled. After the addition of vitamin C, the syringes were incubated at 85 °C for 10 minutes. The autologous biological material obtained was used as filling material. For comparison, FACE-Q satisfaction questionnaires were used before and after the procedure. RESULTS All patients were followed up for a minimum of 4 months. No major complications were recorded. The patient-reported FACE-Q satisfaction and FACE-Q quality of life pre- and post-procedure results showed statistically significant improvement (p < 0.05). Overall satisfaction with the outcome was 89.12 ± 16.73 (range 55-100). CONCLUSIONS ABC filler can be seen as a reliable, inexpensive, and easily obtainable material to restore facial volume with increased patient satisfaction and quality of life scores. We believe that our study will be encouraging to the application of autologous biological fillers for further clinical and scientific studies. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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29
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Supernat A, Popęda M, Pastuszak K, Best MG, Grešner P, Veld SI', Siek B, Bednarz-Knoll N, Rondina MT, Stokowy T, Wurdinger T, Jassem J, Żaczek AJ. Transcriptomic landscape of blood platelets in healthy donors. Sci Rep 2021; 11:15679. [PMID: 34344933 PMCID: PMC8333095 DOI: 10.1038/s41598-021-94003-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022] Open
Abstract
Blood platelet RNA-sequencing is increasingly used among the scientific community. Aberrant platelet transcriptome is common in cancer or cardiovascular disease, but reference data on platelet RNA content in healthy individuals are scarce and merit complex investigation. We sought to explore the dynamics of platelet transcriptome. Datasets from 204 healthy donors were used for the analysis of splice variants, particularly with regard to age, sex, blood storage time, unit of collection or library size. Genes B2M, PPBP, TMSB4X, ACTB, FTL, CLU, PF4, F13A1, GNAS, SPARC, PTMA, TAGLN2, OAZ1 and OST4 demonstrated the highest expression in the analysed cohort, remaining substantial transcription consistency. CSF3R gene was found upregulated in males (fold change 2.10, FDR q < 0.05). Cohort dichotomisation according to the median age, showed upregulated KSR1 in the older donors (fold change 2.11, FDR q < 0.05). Unsupervised hierarchical clustering revealed two clusters which were irrespective of age, sex, storage time, collecting unit or library size. However, when donors are analysed globally (as vectors), sex, storage time, library size, the unit of blood collection as well as age impose a certain degree of between- and/or within-group variability. Healthy donor platelet transcriptome retains general consistency, with very few splice variants deviating from the landscape. Although multidimensional analysis reveals statistically significant variability between and within the analysed groups, biologically, these changes are minor and irrelevant while considering disease classification. Our work provides a reference for studies working both on healthy platelets and pathological conditions affecting platelet transcriptome.
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Affiliation(s)
- Anna Supernat
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland.
| | - Marta Popęda
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
| | - Krzysztof Pastuszak
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland.,Department of Algorithms and Systems Modelling, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Gdańsk, Poland
| | - Myron G Best
- Department of Neurosurgery, Brain Tumor Center Amsterdam, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands.,Brain Tumor Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands
| | - Peter Grešner
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
| | - Sjors In 't Veld
- Department of Neurosurgery, Brain Tumor Center Amsterdam, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands.,Brain Tumor Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands
| | - Bartłomiej Siek
- Department of History and Philosophy of Medical Sciences, Medical University of Gdańsk, Gdańsk, Poland
| | - Natalia Bednarz-Knoll
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
| | - Matthew T Rondina
- University of Utah Molecular Medicine Program, Salt Lake City, UT, USA.,Department of Internal Medicine, Division of General Internal Medicine, University of Utah, Salt Lake City, UT, USA.,George E. Wahlen Veterans Affairs Medical Center Department of Internal Medicine and the Geriatric Research Education and Clinical Center (GRECC), Salt Lake City, UT, USA.,Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Tomasz Stokowy
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Thomas Wurdinger
- Department of Neurosurgery, Brain Tumor Center Amsterdam, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands.,Brain Tumor Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands
| | - Jacek Jassem
- Department of Oncology and Radiotherapy, Medical University of Gdańsk, Gdańsk, Poland
| | - Anna J Żaczek
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
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30
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Koupenova M, Corkrey HA, Vitseva O, Tanriverdi K, Somasundaran M, Liu P, Soofi S, Bhandari R, Godwin M, Parsi KM, Cousineau A, Maehr R, Wang JP, Cameron SJ, Rade J, Finberg RW, Freedman JE. SARS-CoV-2 Initiates Programmed Cell Death in Platelets. Circ Res 2021; 129:631-646. [PMID: 34293929 PMCID: PMC8409903 DOI: 10.1161/circresaha.121.319117] [Citation(s) in RCA: 121] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Supplemental Digital Content is available in the text. Coronavirus disease 2019 (COVID-19) is characterized by increased incidence of microthrombosis with hyperactive platelets sporadically containing viral RNA. It is unclear if SARS-CoV-2 (severe acute respiratory syndrome, corona virus-2) directly alters platelet activation or if these changes are a reaction to infection-mediated global inflammatory alterations. Importantly, the direct effect of SARS-CoV-2 on platelets has yet to be studied.
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Affiliation(s)
- Milka Koupenova
- Department of Medicine, Division of Cardiovascular Medicine (M.K., H.A.C., O.V., K.T., J.R., J.E.F.), University of Massachusetts Medical School, Worcester, MA
| | - Heather A Corkrey
- Department of Medicine, Division of Cardiovascular Medicine (M.K., H.A.C., O.V., K.T., J.R., J.E.F.), University of Massachusetts Medical School, Worcester, MA
| | - Olga Vitseva
- Department of Medicine, Division of Cardiovascular Medicine (M.K., H.A.C., O.V., K.T., J.R., J.E.F.), University of Massachusetts Medical School, Worcester, MA
| | - Kahraman Tanriverdi
- Department of Medicine, Division of Cardiovascular Medicine (M.K., H.A.C., O.V., K.T., J.R., J.E.F.), University of Massachusetts Medical School, Worcester, MA
| | - Mohan Somasundaran
- Department of Biochemistry and Molecular Pharmacology (M.S.), University of Massachusetts Medical School, Worcester, MA
| | - Ping Liu
- Department of Medicine, Division of Infectious Disease and Immunology Department of Medicine (P.L., S.S., J.P.W., R.W.F.), University of Massachusetts Medical School, Worcester, MA
| | - Shaukat Soofi
- Department of Medicine, Division of Infectious Disease and Immunology Department of Medicine (P.L., S.S., J.P.W., R.W.F.), University of Massachusetts Medical School, Worcester, MA
| | - Rohan Bhandari
- Heart, Vascular and Thoracic Institute (R.B., S.J.C.).,Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic, OH (R.B., M.G., S.J.C.)
| | - Matthew Godwin
- Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic, OH (R.B., M.G., S.J.C.)
| | - Krishna Mohan Parsi
- Diabetes Center of Excellence (K.M.P., A.C., R.M.), University of Massachusetts Medical School, Worcester, MA.,Program in Molecular Medicine (K.M.P., R.M.), University of Massachusetts Medical School, Worcester, MA
| | - Alyssa Cousineau
- Diabetes Center of Excellence (K.M.P., A.C., R.M.), University of Massachusetts Medical School, Worcester, MA
| | - René Maehr
- Diabetes Center of Excellence (K.M.P., A.C., R.M.), University of Massachusetts Medical School, Worcester, MA.,Program in Molecular Medicine (K.M.P., R.M.), University of Massachusetts Medical School, Worcester, MA
| | - Jennifer P Wang
- Department of Medicine, Division of Infectious Disease and Immunology Department of Medicine (P.L., S.S., J.P.W., R.W.F.), University of Massachusetts Medical School, Worcester, MA
| | - Scott J Cameron
- Heart, Vascular and Thoracic Institute (R.B., S.J.C.).,Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic, OH (R.B., M.G., S.J.C.).,Case Western Reserve University Lerner College of Medicine, Cleveland, OH (S.J.C.)
| | - Jeffrey Rade
- Department of Medicine, Division of Cardiovascular Medicine (M.K., H.A.C., O.V., K.T., J.R., J.E.F.), University of Massachusetts Medical School, Worcester, MA
| | - Robert W Finberg
- Department of Medicine, Division of Infectious Disease and Immunology Department of Medicine (P.L., S.S., J.P.W., R.W.F.), University of Massachusetts Medical School, Worcester, MA
| | - Jane E Freedman
- Department of Medicine, Division of Cardiovascular Medicine (M.K., H.A.C., O.V., K.T., J.R., J.E.F.), University of Massachusetts Medical School, Worcester, MA
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31
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Hemodialysis exacerbates proteolytic imbalance and pro-fibrotic platelet dysfunction. Sci Rep 2021; 11:11764. [PMID: 34083719 PMCID: PMC8175411 DOI: 10.1038/s41598-021-91416-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/19/2021] [Indexed: 11/19/2022] Open
Abstract
Multi-organ fibrosis among end stage renal disease (ESRD) patients cannot be explained by uremia alone. Despite mitigation of thrombosis during hemodialysis (HD), subsequent platelet dysfunction and tissue dysregulation are less understood. We comprehensively profiled plasma and platelets from ESRD patients before and after HD to examine HD-modulation of platelets beyond thrombotic activation. Basal plasma levels of proteolytic regulators and fibrotic factors were elevated in ESRD patients compared to healthy controls, with isoform-specific changes during HD. Platelet lysate (PL) RNA transcripts for growth and coagulative factors were elevated post-HD, with upregulation correlated to HD vintage. Platelet secretome correlations to plasma factors reveal acutely induced pro-fibrotic platelet phenotypes in ESRD patients during HD characterized by preferentially enhanced proteolytic enzyme translation and secretion, platelet contribution to inflammatory response, and increasing platelet dysfunction with blood flow rate (BFR) and Vintage. Compensatory mechanisms of increased platelet growth factor synthesis with acute plasma matrix metalloproteinase (MMP) and tissue inhibitor of MMPs (TIMP) increases show short-term mode-switching between dialysis sessions leading to long-term pro-fibrotic bias. Chronic pro-fibrotic adaptation of platelet synthesis were observed through changes in differential secretory kinetics of heterogenous granule subtypes. We conclude that chronic and acute platelet responses to HD contribute to a pro-fibrotic milieu in ESRD.
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32
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Gutmann C, Joshi A, Zampetaki A, Mayr M. The Landscape of Coding and Noncoding RNAs in Platelets. Antioxid Redox Signal 2021; 34:1200-1216. [PMID: 32460515 DOI: 10.1089/ars.2020.8139] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Significance: Levels of platelet noncoding RNAs (ncRNAs) are altered by disease, and ncRNAs may exert functions inside and outside of platelets. Their role in physiologic hemostasis and pathologic thrombosis remains to be explored. Recent Advances: The number of RNA classes identified in platelets has been growing since the past decade. Apart from coding messenger RNAs, the RNA landscape in platelets comprises ncRNAs such as microRNAs, circular RNAs, long ncRNAs, YRNAs, and potentially environmentally derived exogenous ncRNAs. Recent research has focused on the function of platelet RNAs beyond platelets, mediated through protective RNA shuttles or even cellular uptake of entire platelets. Multiple studies have also explored the potential of platelet RNAs as novel biomarkers. Critical Issues: Platelet preparations can contain contaminating leukocytes. Even few leukocytes may contribute a substantial amount of RNA. As biomarkers, platelet RNAs have shown associations with platelet activation, but it remains to be seen whether their measurements could improve diagnostics. It also needs to be clarified whether platelet RNAs influence processes beyond platelets. Future Directions: Technological advances such as single-cell RNA-sequencing might help to identify hyperreactive platelet subpopulations on a single-platelet level, avoid the common problem of leukocyte contamination in platelet preparations, and allow simultaneous profiling of native megakaryocytes and their platelet progeny to clarify to what extent the platelet RNA content reflects their megakaryocyte precursors or changes in the circulation. Antioxid. Redox Signal. 34, 1200-1216.
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Affiliation(s)
- Clemens Gutmann
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Abhishek Joshi
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Anna Zampetaki
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Manuel Mayr
- King's British Heart Foundation Centre, King's College London, London, United Kingdom
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33
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Abstract
Until recently, the nucleic acid content of platelets was considered to be fully determined by their progenitor megakaryocyte. However, it is now well understood that additional mediators (eg, cancer cells) can intervene, thereby influencing the RNA repertoire of platelets. Platelets are highly dynamic cells that are able to communicate and influence their environment. For instance, platelets have been involved in various steps of cancer development and progression by supporting tumor growth, survival, and dissemination. Cancer cells can directly and/or indirectly influence platelet RNA content, resulting in tumor-mediated "education" of platelets. Alterations in the tumor-educated platelet RNA profile have been described as a novel source of potential biomarkers. Individual platelet RNA biomarkers as well as complex RNA signatures may be used for early detection of cancer and treatment monitoring. Here, we review the RNA transfer occurring between cancer cells and platelets. We explore the potential use of platelet RNA biomarkers as a liquid biopsy biosource and discuss methods to evaluate the transcriptomic content of platelets.
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34
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Multifaceted Functions of Platelets in Cancer: From Tumorigenesis to Liquid Biopsy Tool and Drug Delivery System. Int J Mol Sci 2020; 21:ijms21249585. [PMID: 33339204 PMCID: PMC7765591 DOI: 10.3390/ijms21249585] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022] Open
Abstract
Platelets contribute to several types of cancer through plenty of mechanisms. Upon activation, platelets release many molecules, including growth and angiogenic factors, lipids, and extracellular vesicles, and activate numerous cell types, including vascular and immune cells, fibroblasts, and cancer cells. Hence, platelets are a crucial component of cell-cell communication. In particular, their interaction with cancer cells can enhance their malignancy and facilitate the invasion and colonization of distant organs. These findings suggest the use of antiplatelet agents to restrain cancer development and progression. Another peculiarity of platelets is their capability to uptake proteins and transcripts from the circulation. Thus, cancer-patient platelets show specific proteomic and transcriptomic expression patterns, a phenomenon called tumor-educated platelets (TEP). The transcriptomic/proteomic profile of platelets can provide information for the early detection of cancer and disease monitoring. Platelet ability to interact with tumor cells and transfer their molecular cargo has been exploited to design platelet-mediated drug delivery systems to enhance the efficacy and reduce toxicity often associated with traditional chemotherapy. Platelets are extraordinary cells with many functions whose exploitation will improve cancer diagnosis and treatment.
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Palace SG, Vitseva O, Proulx MK, Freedman JE, Goguen JD, Koupenova M. Yersinia pestis escapes entrapment in thrombi by targeting platelet function. J Thromb Haemost 2020; 18:3236-3248. [PMID: 33470041 PMCID: PMC8040536 DOI: 10.1111/jth.15065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/15/2020] [Accepted: 07/24/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Platelets are classically recognized for their role in hemostasis and thrombosis. Recent work has demonstrated that platelets can also execute a variety of immune functions. The dual prothrombotic and immunological roles of platelets suggest that they may pose a barrier to the replication or dissemination of extracellular bacteria. However, some bloodborne pathogens, such as the plague bacterium Yersinia pestis, routinely achieve high vascular titers that are necessary for pathogen transmission. OBJECTIVES It is not currently known how or if pathogens circumvent platelet barriers to bacterial dissemination and replication. We sought to determine whether extracellular bloodborne bacterial pathogens actively interfere with platelet function, using Y pestis as a model system. METHODS The interactions and morphological changes of human platelets with various genetically modified Y pestis strains were examined using aggregation assays, immunofluorescence, and scanning electron microscopy. RESULTS Yersinia pestis directly destabilized platelet thrombi, preventing bacterial entrapment in fibrin/platelet clots. This activity was dependent on two well-characterized bacterial virulence factors: the Y pestis plasminogen activator Pla, which stimulates host-mediated fibrinolysis, and the bacterial type III secretion system (T3SS), which delivers bacterial proteins into the cytoplasm of targeted host cells to reduce or prevent effective immunological responses. Platelets intoxicated by the Y pestis T3SS were unable to respond to prothrombotic stimuli, and T3SS expression decreased the formation of neutrophil extracellular traps in platelet thrombi. CONCLUSIONS These findings are the first demonstration of a bacterial pathogen using its T3SS and an endogenous protease to manipulate platelet function and to escape entrapment in platelet thrombi.
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Affiliation(s)
- Samantha G. Palace
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Olga Vitseva
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Megan K. Proulx
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jane E. Freedman
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jon D. Goguen
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Milka Koupenova
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
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Maouia A, Rebetz J, Kapur R, Semple JW. The Immune Nature of Platelets Revisited. Transfus Med Rev 2020; 34:209-220. [PMID: 33051111 PMCID: PMC7501063 DOI: 10.1016/j.tmrv.2020.09.005] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 01/08/2023]
Abstract
Platelets are the primary cellular mediators of hemostasis and this function firmly acquaints them with a variety of inflammatory processes. For example, platelets can act as circulating sentinels by expressing Toll-like receptors (TLR) that bind pathogens and this allows platelets to effectively kill them or present them to cells of the immune system. Furthermore, activated platelets secrete and express many pro- and anti-inflammatory molecules that attract and capture circulating leukocytes and direct them to inflamed tissues. In addition, platelets can directly influence adaptive immune responses via secretion of, for example, CD40 and CD40L molecules. Platelets are also the source of most of the microvesicles in the circulation and these miniscule elements further enhance the platelet’s ability to communicate with the immune system. More recently, it has been demonstrated that platelets and their parent cells, the megakaryocytes (MK), can also uptake, process and present both foreign and self-antigens to CD8+ T-cells conferring on them the ability to directly alter adaptive immune responses. This review will highlight several of the non-hemostatic attributes of platelets that clearly and rightfully place them as integral players in immune reactions. Platelets can act as circulating sentinels by expressing pathogen-associated molecular pattern receptors that bind pathogens and induce their killing and elimination. Activated platelets secrete and express a multitude of pro- and anti-inflammatory molecules that attract and capture circulating leukocytes and direct them to inflamed tissues. Platelets express and secrete many critical immunoregulatory molecules that significantly affect both innate and adaptive immune responses. Platelets are the primary source of microparticles in the circulation and these augment the platelet’s ability to communicate with the immune system. Platelets and megakaryocytes can act as antigen presenting cells and present both foreign- and self-peptides to T-cells.
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Affiliation(s)
- Amal Maouia
- Division of Hematology and Transfusion Medicine, Lund University, Lund, Sweden
| | - Johan Rebetz
- Division of Hematology and Transfusion Medicine, Lund University, Lund, Sweden
| | - Rick Kapur
- Sanquin Research, Department of Experimental Immunohematology, Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - John W Semple
- Division of Hematology and Transfusion Medicine, Lund University, Lund, Sweden; Clinical Immunology and Transfusion Medicine, Office of Medical Services, Region Skåne, Lund, Sweden.
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Lazar S, Wurtzel JGT, Chen X, Ma P, Goldfinger LE. High-efficiency unassisted transfection of platelets with naked double-stranded miRNAs modulates signal-activated translation and platelet function. Platelets 2020; 32:794-806. [PMID: 32838617 DOI: 10.1080/09537104.2020.1809642] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We sought novel approaches to improve transfection efficiencies of microRNAs (miRNAs) in platelets, and to apply these approaches to investigate the roles of miRNAs in regulating signal-activated protein translation and functional effects. We found that ex vivo human platelets support gymnosis---internalization of ectopic miRNAs following co-incubation in the absence of conventional transfection reagents or schemes---and subsequently incorporate transfected miRNA into ARGONAUTE2 (AGO2)-based RNA-induced silencing complexes (RISC). Thrombin/fibrinogen stimulation activated translation of miR-223-3p target SEPTIN2, which was suppressed by miR-223-3p transfection in an AGO2/RISC-dependent manner. Thrombin/fibrinogen-induced exosome and microvesicle generation was inhibited by miR-223-3p transfection, and this effect was reversed with a RISC inhibitor. Platelet gymnosis of naked miRNAs appeared to be mediated in part by endocytic pathways including clathrin-dependent and fluid-phase endocytosis and caveolae. These results demonstrate the ability of ex vivo platelets to internalize ectopic miRNAs by unassisted transfection, and utilize them to modulate signal-activated translation and platelet function. Our results identify new roles for miR-223-3p in extracellular vesicle generation in stimulated platelets. High-efficiency gymnotic transfection of miRNAs in ex vivo platelets may be a broadly useful tool for exploring molecular genetic regulation of platelet function.
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Affiliation(s)
- Sophia Lazar
- Cardeza Foundation for Hematologic Research, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jeremy G T Wurtzel
- Cardeza Foundation for Hematologic Research, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Xi Chen
- Cardeza Foundation for Hematologic Research, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Peisong Ma
- Cardeza Foundation for Hematologic Research, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lawrence E Goldfinger
- Cardeza Foundation for Hematologic Research, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
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Koupenova M. Potential role of platelets in COVID-19: Implications for thrombosis. Res Pract Thromb Haemost 2020; 4:737-740. [PMID: 32685881 PMCID: PMC7283793 DOI: 10.1002/rth2.12397] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/17/2020] [Accepted: 05/20/2020] [Indexed: 12/22/2022] Open
Abstract
For the past 150 years, platelets have been recognized as the major blood component that mediates hemostasis and thrombosis. In more recent years, however, we have come to appreciate that platelets also perform profound immune functions during infection with various pathogens. We now recognize that platelets can also mediate a response to various RNA viruses such as influenza and that many viral infections, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), can affect platelet count. Thrombocytopenia and increased coagulation have been independently associated with increased mortality. This article provides a perspective on the potential roles of platelets during coronavirus disease 2019.
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Affiliation(s)
- Milka Koupenova
- Division of Cardiovascular MedicineDepartment of MedicineUniversity of Massachusetts Medical SchoolWorcesterMAUSA
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40
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Handtke S, Thiele T. Large and small platelets-(When) do they differ? J Thromb Haemost 2020; 18:1256-1267. [PMID: 32108994 DOI: 10.1111/jth.14788] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 02/06/2023]
Abstract
Platelets are most important in providing cellular hemostasis but also take part in inflammation and immune processes. Increased platelet size has been regarded as a feature describing a young and more reactive subpopulation until studies were published which questioned this concept. Moreover, changes of platelet size given by the mean platelet volume (MPV) were described for immune thrombocytopenia, cardiovascular disease, atherosclerosis, venous thromboembolism, chronic lung disease, sepsis, cancer-associated thrombosis, autoimmune disorders, and others. This review summarizes the literature on what is known about platelets with different size and describes controversies of studies with large and small platelets putting a focus on their thrombogenicity, age, and on the association of MPV with the mentioned diseases.
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Affiliation(s)
- Stefan Handtke
- Institut für Immunologie und Transfusionsmedizin, Abteilung Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Thomas Thiele
- Institut für Immunologie und Transfusionsmedizin, Abteilung Transfusionsmedizin, Universitätsmedizin Greifswald, Greifswald, Germany
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41
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microRNAs as promising biomarkers of platelet activity in antiplatelet therapy monitoring. Int J Mol Sci 2020; 21:ijms21103477. [PMID: 32423125 PMCID: PMC7278969 DOI: 10.3390/ijms21103477] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 12/13/2022] Open
Abstract
Given the high morbidity and mortality of cardiovascular diseases (CVDs), novel biomarkers for platelet reactivity are urgently needed. Ischemic events in CVDs are causally linked to platelets, small anucleate cells important for hemostasis. The major side-effect of antiplatelet therapy are life-threatening bleeding events. Current platelet function tests are not sufficient in guiding treatment decisions. Platelets host a broad spectrum of microRNAs (miRNAs) and are a major source of cell-free miRNAs in the blood stream. Platelet-related miRNAs have been suggested as biomarkers of platelet activation and assessment of antiplatelet therapy responsiveness. Platelets release miRNAs upon activation, possibly leading to alterations of plasma miRNA levels in conjunction with CVD or inadequate platelet inhibition. Unlike current platelet function tests, which measure platelet activation ex vivo, signatures of platelet-related miRNAs potentially enable the assessment of in vivo platelet reactivity. Evidence suggests that some miRNAs are responsive to platelet inhibition, making them promising biomarker candidates. In this review, we explain the secretion of miRNAs upon platelet activation and discuss the potential use of platelet-related miRNAs as biomarkers for CVD and antiplatelet therapy monitoring, but also highlight remaining gaps in our knowledge and uncertainties regarding clinical utility. We also elaborate on technical issues and limitations concerning plasma miRNA quantification.
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42
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Becker RC, Phillip Owens A, Sadayappan S. The potential roles of Von Willebrand factor and neutrophil extracellular traps in the natural history of hypertrophic and hypertensive cardiomyopathy. Thromb Res 2020; 192:78-87. [PMID: 32460175 DOI: 10.1016/j.thromres.2020.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 05/01/2020] [Accepted: 05/03/2020] [Indexed: 02/09/2023]
Abstract
Inflammation is often applied broadly to human disease. Despite its general familiarity, inflammation is highly complex. There are numerous injurious, immune and infectious determinants, functional elements and signaling pathways, ranging from genetic to epigenetic, environmental, racial, molecular and cellular that participate in disease onset and progression, phenotypic heterogeneity, and treatment selection and response. In addition, inflammation can be tissue and organ specific, adding a layer of complexity to achieving a detailed and translatable understanding of its role in health and disease. The following review takes a close look at inflammation in the context of two common heart diseases, hypertrophic cardiomyopathy and hypertensive cardiomyopathy.
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Affiliation(s)
- Richard C Becker
- Division of Cardiovascular Health and Disease, Heart, Lung and Blood Institute, University of Cincinnati College of Medicine, United States of America.
| | - A Phillip Owens
- Division of Cardiovascular Health and Disease, Heart, Lung and Blood Institute, University of Cincinnati College of Medicine, United States of America
| | - Sakthivel Sadayappan
- Division of Cardiovascular Health and Disease, Heart, Lung and Blood Institute, University of Cincinnati College of Medicine, United States of America
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43
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Davizon-Castillo P, Rowley JW, Rondina MT. Megakaryocyte and Platelet Transcriptomics for Discoveries in Human Health and Disease. Arterioscler Thromb Vasc Biol 2020; 40:1432-1440. [PMID: 32295424 PMCID: PMC7253186 DOI: 10.1161/atvbaha.119.313280] [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] [Indexed: 12/28/2022]
Abstract
Anucleate platelets, long viewed as merely cell fragments with a limited repertoire of rapid-acting hemostatic functions, are now recognized to have a complex and dynamic transcriptome mirroring that of many nucleated cells. The field of megakaryocyte and platelet transcriptomics has been rapidly growing, particularly with the advent of newer technologies such as next-generation RNA-sequencing. Studies interrogating the megakaryocyte and platelet transcriptome have led to a number of key insights into human health and disease. In this brief focused review, we will discuss some of the recent discoveries made through transcriptome analysis of megakaryocytes and platelets. We will also highlight the utility of integrating ribosome footprint analysis to augment discoveries. Both bulk and single-cell sequencing approaches will be reviewed, along with comparative studies between human and murine platelets under basal healthy settings and during acute systemic inflammatory diseases.
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Affiliation(s)
- Pavel Davizon-Castillo
- From the Section of Pediatric Hematology, Oncology, and Bone Marrow Transplant, University of Colorado, Aurora (P.D.-C)
| | - Jesse W Rowley
- University of Utah Molecular Medicine Program, University of Utah, Salt Lake City (J.W.R., M.T.R.).,Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City (J.W.R., M.T.R.)
| | - Matthew T Rondina
- From the Section of Pediatric Hematology, Oncology, and Bone Marrow Transplant, University of Colorado, Aurora (P.D.-C).,University of Utah Molecular Medicine Program, University of Utah, Salt Lake City (J.W.R., M.T.R.).,Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City (J.W.R., M.T.R.).,Department of Pathology, University of Utah, Salt Lake City (M.T.R.).,George E. Wahlen VAMC, Salt Lake City, UT (M.T.R.)
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Abstract
Platelets - blood cells continuously produced from megakaryocytes mainly in the bone marrow - are implicated not only in haemostasis and arterial thrombosis, but also in other physiological and pathophysiological processes. This Review describes current evidence for the heterogeneity in platelet structure, age, and activation properties, with consequences for a diversity of platelet functions. Signalling processes of platelet populations involved in thrombus formation with ongoing coagulation are well understood. Genetic approaches have provided information on multiple genes related to normal haemostasis, such as those encoding receptors and signalling or secretory proteins, that determine platelet count and/or responsiveness. As highly responsive and secretory cells, platelets can alter the environment through the release of growth factors, chemokines, coagulant factors, RNA species, and extracellular vesicles. Conversely, platelets will also adapt to their environment. In disease states, platelets can be positively primed to reach a pre-activated condition. At the inflamed vessel wall, platelets interact with leukocytes and the coagulation system, interactions mediating thromboinflammation. With current antiplatelet therapies invariably causing bleeding as an undesired adverse effect, novel therapies can be more beneficial if directed against specific platelet responses, populations, interactions, or priming conditions. On the basis of these novel concepts and processes, we discuss several initiatives to target platelets therapeutically.
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45
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Tumor-educated platelet as liquid biopsy in lung cancer patients. Crit Rev Oncol Hematol 2020; 146:102863. [PMID: 31935617 DOI: 10.1016/j.critrevonc.2020.102863] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/28/2019] [Accepted: 01/01/2020] [Indexed: 02/06/2023] Open
Abstract
Lung cancer is the most frequent cancer for males and third most frequent cancer for females. Targeted therapy drugs based on molecular alterations, such as angiogenesis inhibitors, epidermal growth factor receptor (EGFR) inhibitors, and anaplastic lymphoma kinase (ALK) inhibitors are important part of treatment of NSCLC. However, the quality of the available tumor biopsy and/or cytology material is sometimes not adequate to perform the necessary molecular testing, which has prompted the search for alternatives. This review examines the use of tumor-educated platelet (TEP) as a liquid biopsy in lung cancer patients. The development of sensitive and accurate techniques have made it possible to detect the specific genetic alterations for which targeted therapies are already available. Liquid biopsy offers opportunities to detect resistance mechanisms at an early stage. To conclude, tumor-educated platelet has the potential to be used as liquid biopsy for a variety of clinical and investigational applications.
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46
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Koupenova M, Mick E, Corkrey HA, Singh A, Tanriverdi SE, Vitseva O, Levy D, Keeler AM, Ezzaty Mirhashemi M, ElMallah MK, Gerstein M, Rozowsky J, Tanriverdi K, Freedman JE. Pollen-derived RNAs Are Found in the Human Circulation. iScience 2019; 19:916-926. [PMID: 31518900 PMCID: PMC6742912 DOI: 10.1016/j.isci.2019.08.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/23/2019] [Accepted: 08/20/2019] [Indexed: 12/15/2022] Open
Abstract
The presence of nonhuman RNAs in man has been questioned and it is unclear if food-derived miRNAs cross into the circulation. In a large population study, we found nonhuman miRNAs in plasma by RNA sequencing and validated a small number of pine-pollen miRNAs by RT-qPCR in 2,776 people. The presence of these pine-pollen miRNAs associated with hay fever and not with overt cardiovascular or pulmonary disease. Using in vivo and in vitro models, we found that transmission of pollen-miRNAs into the circulation occurs via pulmonary transfer and this transfer was mediated by platelet-pulmonary vascular cell interactions and platelet pollen-DNA uptake. These data demonstrate that pollen-derived plant miRNAs can be horizontally transferred into the circulation via the pulmonary system in humans. Although these data suggest mechanistic plausibility for pulmonary-mediated plant-derived miRNA transfer into the human circulation, our large observational cohort data do not implicate major disease or risk factor association.
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Affiliation(s)
- Milka Koupenova
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA.
| | - Eric Mick
- Department of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Heather A Corkrey
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA
| | - Anupama Singh
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA
| | - Selim E Tanriverdi
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA
| | - Olga Vitseva
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA
| | - Daniel Levy
- The Framingham Heart Study, Framingham, MA, USA; Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Allison M Keeler
- Department of Pediatrics, Division of Pulmonary Medicine and Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Marzieh Ezzaty Mirhashemi
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA
| | - Mai K ElMallah
- Department of Pediatrics, Division of Pulmonary Medicine and Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Mark Gerstein
- Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06520, USA; Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA; Department of Computer Science, Yale University, New Haven, CT 06520, USA
| | - Joel Rozowsky
- Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06520, USA; Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA
| | - Kahraman Tanriverdi
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA
| | - Jane E Freedman
- Department of Medicine, Division of Cardiovascular Medicine, University of Massachusetts Medical School, 368 Plantation St., AS7-1051, Worcester, MA 01605, USA.
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Lesyk G, Jurasz P. Advances in Platelet Subpopulation Research. Front Cardiovasc Med 2019; 6:138. [PMID: 31572733 PMCID: PMC6753372 DOI: 10.3389/fcvm.2019.00138] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 08/29/2019] [Indexed: 01/01/2023] Open
Abstract
Although lacking a nucleus, platelets are increasingly recognized not only for their complexity, but also for their diversity. Some 50 years ago platelet subpopulations were characterized by size and density, and these characteristics were thought to reflect platelet aging. Since, our knowledge of platelet heterogeneity has grown to recognize that differences in platelet biochemistry and function exist. This includes the identification of vanguard and follower platelets, platelets with differing procoagulant ability including "COAT-platelets" which enhance procoagulant protein retention on their surface, and most recently, the identification of platelet subpopulations with a differential ability to generate and respond to nitric oxide. Hence, in this mini-review, we summarize the current knowledge of platelet subpopulation diversity focusing on their physical, biochemical, and functional heterogeneity. In addition, we review how platelet subpopulations may change between health and disease and how differences among platelets may influence response to anti-platelet therapy. Finally, we look forward and discuss some of the future directions and challenges for this growing field of platelet research.
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Affiliation(s)
- Gabriela Lesyk
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada.,Cardiovascular Research Centre, University of Alberta, Edmonton, AB, Canada
| | - Paul Jurasz
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada.,Cardiovascular Research Centre, University of Alberta, Edmonton, AB, Canada.,Department of Pharmacology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.,Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, AB, Canada
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48
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Affiliation(s)
- Craig N Morrell
- From the Aab Cardiovascular Research Institute (C.N.M., Z.T.H., D.N.P., P.M.), University of Rochester School of Medicine, Box CVRI, NY
- Department of Microbiology and Immunology (C.N.M., D.N.P.), University of Rochester School of Medicine, Box CVRI, NY
| | - Zachary T Hilt
- From the Aab Cardiovascular Research Institute (C.N.M., Z.T.H., D.N.P., P.M.), University of Rochester School of Medicine, Box CVRI, NY
| | - Daphne N Pariser
- From the Aab Cardiovascular Research Institute (C.N.M., Z.T.H., D.N.P., P.M.), University of Rochester School of Medicine, Box CVRI, NY
- Department of Microbiology and Immunology (C.N.M., D.N.P.), University of Rochester School of Medicine, Box CVRI, NY
| | - Preeti Maurya
- From the Aab Cardiovascular Research Institute (C.N.M., Z.T.H., D.N.P., P.M.), University of Rochester School of Medicine, Box CVRI, NY
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49
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Koupenova M, Clancy L, Corkrey HA, Freedman JE. Circulating Platelets as Mediators of Immunity, Inflammation, and Thrombosis. Circ Res 2019; 122:337-351. [PMID: 29348254 DOI: 10.1161/circresaha.117.310795] [Citation(s) in RCA: 552] [Impact Index Per Article: 110.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Platelets, non-nucleated blood components first described over 130 years ago, are recognized as the primary cell regulating hemostasis and thrombosis. The vascular importance of platelets has been attributed to their essential role in thrombosis, mediating myocardial infarction, stroke, and venous thromboembolism. Increasing knowledge on the platelets' role in the vasculature has led to many advances in understanding not only how platelets interact with the vessel wall but also how they convey changes in the environment to other circulating cells. In addition to their well-described hemostatic function, platelets are active participants in the immune response to microbial organisms and foreign substances. Although incompletely understood, the immune role of platelets is a delicate balance between its pathogenic response and its regulation of thrombotic and hemostatic functions. Platelets mediate complex vascular homeostasis via specific receptors and granule release, RNA transfer, and mitochondrial secretion that subsequently regulates hemostasis and thrombosis, infection, and innate and adaptive immunity.
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Affiliation(s)
- Milka Koupenova
- From the Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester.
| | - Lauren Clancy
- From the Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester
| | - Heather A Corkrey
- From the Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester
| | - Jane E Freedman
- From the Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester
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50
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Best MG, In 't Veld SGJG, Sol N, Wurdinger T. RNA sequencing and swarm intelligence-enhanced classification algorithm development for blood-based disease diagnostics using spliced blood platelet RNA. Nat Protoc 2019; 14:1206-1234. [PMID: 30894694 DOI: 10.1038/s41596-019-0139-5] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 01/17/2019] [Indexed: 12/12/2022]
Abstract
Blood-based diagnostics tests, using individual or panels of biomarkers, may revolutionize disease diagnostics and enable minimally invasive therapy monitoring. However, selection of the most relevant biomarkers from liquid biosources remains an immense challenge. We recently presented the thromboSeq pipeline, which enables RNA sequencing and cancer classification via self-learning and swarm intelligence-enhanced bioinformatics algorithms using blood platelet RNA. Here, we provide the wet-lab protocol for the generation of platelet RNA-sequencing libraries and the dry-lab protocol for the development of swarm intelligence-enhanced machine-learning-based classification algorithms. The wet-lab protocol includes platelet RNA isolation, mRNA amplification, and preparation for next-generation sequencing. The dry-lab protocol describes the automated FASTQ file pre-processing to quantified gene counts, quality controls, data normalization and correction, and swarm intelligence-enhanced support vector machine (SVM) algorithm development. This protocol enables platelet RNA profiling from 500 pg of platelet RNA and allows automated and optimized biomarker panel selection. The wet-lab protocol can be performed in 5 d before sequencing, and the algorithm development can be completed in 2 d, depending on computational resources. The protocol requires basic molecular biology skills and a basic understanding of Linux and R. In all, with this protocol, we aim to enable the scientific community to test platelet RNA for diagnostic algorithm development.
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Affiliation(s)
- Myron G Best
- Department of Neurosurgery, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands. .,Department of Pathology, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands. .,Brain Tumor Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.
| | - Sjors G J G In 't Veld
- Department of Neurosurgery, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.,Brain Tumor Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Nik Sol
- Brain Tumor Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.,Department of Neurology, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Thomas Wurdinger
- Department of Neurosurgery, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands. .,Brain Tumor Center Amsterdam, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.
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