1
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Li HY, Liu TM. Platelet indices and inflammatory bowel disease: a Mendelian randomization study. Front Immunol 2024; 15:1377915. [PMID: 39044827 PMCID: PMC11263279 DOI: 10.3389/fimmu.2024.1377915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 06/25/2024] [Indexed: 07/25/2024] Open
Abstract
Background Platelets play a significant role in the innate and adaptive processes of immunity and inflammation. Inflammatory bowel disease (IBD) is an autoimmune disease that is widely understood to be caused by a combination of genetic predisposition, aberrant immune responses, etc. Methods To examine the relationships between genetically determined platelet indices and IBD, we conducted a Mendelian randomization (MR) study. Data associated with platelet count (PLT), mean platelet volume (MPV), platelet distribution width (PDW), plateletcrit (PCT) were used from the UK Biobank. The outcome data, including IBD, Crohn's disease (CD), ulcerative colitis (UC), were from the FinnGen database. The inverse variance-weighted (IVW), MR-Egger, weighted median methods were used for MR analyses. Results The MR estimations from the IVW approach show a significant connection between PLT and IBD. Similarly, PCT and IBD have a relationship following the IVW and MR-Egger approaches. While PLT and PCT have strong relationships with CD, according to the findings of all three approaches respectively. Nevertheless, PDW was the only relevant indicator of UC. The only significant result was IVW's. Conclusion Our findings suggest that the fluctuation of platelet indicators is of great significance in the development of IBD. PLT and PCT have a close association with IBD and CD, respectively; PDW only has a connection with UC. Platelets play an important role in the progression of IBD (UC, CD).
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Affiliation(s)
| | - Tie-mei Liu
- Department of Blood Transfusion, China-Japan Union Hospital of Jilin University, Changchun, China
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2
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Leone M, Nielsen ND, Russell L. Ten tips on sepsis-induced thrombocytopenia. Intensive Care Med 2024; 50:1157-1160. [PMID: 38739278 DOI: 10.1007/s00134-024-07478-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 05/03/2024] [Indexed: 05/14/2024]
Affiliation(s)
- Marc Leone
- Department of Anaesthesiology and Intensive Care Unit, North Hospital, Assistance Publique Hôpitaux, Service d'Anesthésie Et de Réanimation, Hôpital Nord, Chemin Des Bourrely, Universitaires de Marseille, Aix Marseille University, 13015, Marseille, France.
| | - Nathan D Nielsen
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, NM, USA
- Section of Transfusion Medicine and Therapeutic Pathology, Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM, USA
| | - Lene Russell
- Department of Intensive Care, Copenhagen University Hospital Gentofte, Hellerup, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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3
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Guo R, Ma G, Zhai X, Shi H, Wang J. Single-cell transcriptomic landscape of peripheral blood cells provides insights into adaptation of red-eared sliders (Trachemys scripta elegans). Integr Zool 2024; 19:468-479. [PMID: 37226359 DOI: 10.1111/1749-4877.12725] [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] [Indexed: 05/26/2023]
Abstract
Red-eared sliders (Trachemys scripta elegans), as one of the 100 most threatening aliens, have stronger immunity than the native species in response to environmental stress. Blood cells are an important component of immunity in the body. However, the blood cell researches of turtle are still in the traditional blood cell classification and morphological structure observation. Furthermore, turtle granulocytes cannot be accurately identified using traditional methods. Single-cell RNA sequencing techniques have been successfully implemented to study cells based on the mRNA expression patterns of each cell. The present study profiled the transcriptomes of peripheral blood cells in red-eared sliders to construct a single-cell transcriptional landscape of the different cell types and explored environmental adaptation mechanism from the perspective of hematology. All 14 transcriptionally distinct clusters (platelets, erythrocytes1, erythrocytes2, CSF1R monocytes, POF1B monocytes, neutrophils, GATA2high basophils, GATA2low basophils, CD4 T cells, CD7 T cells, B cells, ACKR4 cells, serotriflin cells, and ficolin cells) were identified in the peripheral blood cells of the red-eared sliders. In particular, a subtype of erythrocytes (erythrocytes1) that expressed immune signals was identified. Peripheral blood cells were grouped into three lineages: platelet, erythroid/lymphoid, and myeloid cell lineages. Furthermore, based on differentiation trajectory and up-regulated gene expression, ACKR4 cells were newly identified as lymphocytes, and serotriflin and ficolin cells as granulocytes. The single-cell transcriptional atlas of the peripheral blood cells in red-eared sliders provided in the present study will offer a comprehensive transcriptome reference for the exploration of physiological and pathological hematology in this species.
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Affiliation(s)
- Rui Guo
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Guangwei Ma
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Xiaofei Zhai
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Haitao Shi
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Jichao Wang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, China
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4
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Gremmel T, Frelinger AL, Michelson AD. Platelet Physiology. Semin Thromb Hemost 2024. [PMID: 38653463 DOI: 10.1055/s-0044-1786387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Platelets are the smallest blood cells, numbering 150 to 350 × 109/L in healthy individuals. The ability of activated platelets to adhere to an injured vessel wall and form aggregates was first described in the 19th century. Besides their long-established roles in thrombosis and hemostasis, platelets are increasingly recognized as pivotal players in numerous other pathophysiological processes including inflammation and atherogenesis, antimicrobial host defense, and tumor growth and metastasis. Consequently, profound knowledge of platelet structure and function is becoming more important in research and in many fields of modern medicine. This review provides an overview of platelet physiology focusing particularly on the structure, granules, surface glycoproteins, and activation pathways of platelets.
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Affiliation(s)
- Thomas Gremmel
- Division of Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
- Institute of Cardiovascular Pharmacotherapy and Interventional Cardiology, Karl Landsteiner Society, St. Pölten, Austria
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Department of Internal Medicine I, Cardiology and Intensive Care Medicine, Landesklinikum Mistelbach-Gänserndorf, Mistelbach, Austria
| | - Andrew L Frelinger
- Division of Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Alan D Michelson
- Division of Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
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5
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Amoafo EB, Entsie P, Kang Y, Canobbio I, Liverani E. Platelet P2Y 12 signalling pathway in the dysregulated immune response during sepsis. Br J Pharmacol 2024; 181:532-546. [PMID: 37525937 PMCID: PMC10830899 DOI: 10.1111/bph.16207] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 07/04/2023] [Accepted: 07/19/2023] [Indexed: 08/02/2023] Open
Abstract
Sepsis is a complicated pathological condition in response to severe infection. It is characterized by a strong systemic inflammatory response, where multiple components of the immune system are involved. Currently, there is no treatment for sepsis. Blood platelets are known for their role in haemostasis, but they also participate in inflammation through cell-cell interaction and the secretion of inflammatory mediators. Interestingly, an increase in platelet activation, secretion, and aggregation with other immune cells (such as monocytes, T-lymphocytes and neutrophils) has been detected in septic patients. Therefore, antiplatelet therapy in terms of P2Y12 antagonists has been evaluated as a possible treatment for sepis. It was found that blocking P2Y12 receptors decreased platelet marker expression and limited attachment to immune cells in some studies, but not in others. This review addresses the role of platelets in sepsis and discusses whether antagonizing P2Y12 signalling pathways can alter the disease outcome. Challenges in studying P2Y12 antagonists in sepsis also are discussed. LINKED ARTICLES: This article is part of a themed issue on Platelet purinergic receptor and non-thrombotic disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v181.4/issuetoc.
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Affiliation(s)
- Emmanuel Boadi Amoafo
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | - Philomena Entsie
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | - Ying Kang
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | - Ilaria Canobbio
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Elisabetta Liverani
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND, USA
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6
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Cunha J, Chan MV, Nkambule BB, Thibord F, Lachapelle A, Pashek RE, Vasan RS, Rong J, Benjamin EJ, Hamburg NM, Chen MH, Mitchell GF, Johnson AD. Trends among platelet function, arterial calcium, and vascular function measures. Platelets 2023; 34:2238835. [PMID: 37609998 PMCID: PMC10947606 DOI: 10.1080/09537104.2023.2238835] [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: 11/10/2022] [Revised: 06/26/2023] [Accepted: 07/14/2023] [Indexed: 08/24/2023]
Abstract
Arterial tonometry and vascular calcification measures are useful in cardiovascular disease (CVD) risk assessment. Prior studies found associations between tonometry measures, arterial calcium, and CVD risk. Activated platelets release angiopoietin-1 and other factors, which may connect vascular structure and platelet function. We analyzed arterial tonometry, platelet function, aortic, thoracic and coronary calcium, and thoracic and abdominal aorta diameters measured in the Framingham Heart Study Gen3/NOS/OMNI-2 cohorts (n = 3,429, 53.7% women, mean age 54.4 years ±9.3). Platelet reactivity in whole blood or platelet-rich plasma was assessed using 5 assays and 7 agonists. We analyzed linear mixed effects models with platelet reactivity phenotypes as outcomes, adjusting for CVD risk factors and family structure. Higher arterial calcium trended with higher platelet reactivity, whereas larger aortic diameters trended with lower platelet reactivity. Characteristic impedance (Zc) and central pulse pressure positively trended with various platelet traits, while pulse wave velocity and Zc negatively trended with collagen, ADP, and epinephrine traits. All results did not pass a stringent multiple test correction threshold (p < 2.22e-04). The diameter trends were consistent with lower shear environments invoking less platelet reactivity. The vessel calcium trends were consistent with subclinical atherosclerosis and platelet activation being inter-related.
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Affiliation(s)
- Jason Cunha
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
| | - Melissa V. Chan
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
| | - Bongani B. Nkambule
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
| | - Florian Thibord
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
| | - Amber Lachapelle
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
| | - Robin E. Pashek
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
| | - Ramachandran S. Vasan
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- Cardiology and Preventive Medicine Sections, Department of Medicine, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
- Evans Center for Interdisciplinary Biomedical Research, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
- Whitaker Cardiovascular Institute, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
- Schools of Public Health and Medicine, Departments of Population Health and Medicine, University of Texas Health Sciences Center, San Antonio, TX, USA
| | - Jian Rong
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Emelia J. Benjamin
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- Cardiology and Preventive Medicine Sections, Department of Medicine, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
- Evans Center for Interdisciplinary Biomedical Research, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
- Whitaker Cardiovascular Institute, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
| | - Naomi M. Hamburg
- Whitaker Cardiovascular Institute, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
| | - Ming-Huei Chen
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
| | | | - Andrew D. Johnson
- National Heart, Lung and Blood Institute’s the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA
- National Heart, Lung and Blood Institute, Population Sciences Branch, Framingham, MA, USA
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7
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Kilic F. Serotonin Signaling and the Hyperpermeable Endothelial Barrier in Sepsis: Clues to a Molecular Mechanism. JOURNAL OF COMMUNITY MEDICINE & PUBLIC HEALTH 2023; 7:389. [PMID: 38371611 PMCID: PMC10871023 DOI: 10.29011/2577-2228.100389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Sepsis is characterized by a severe systemic inflammatory response caused by hyperpermeability of the endothelial barrier resulting microvascular leakage, which is a leading factor to multiorgan failure. In sepsis, the hyperpermeable endothelial cells contribute to the activation of platelets, which release numerous mediators that affect coagulation, inflammatory response and are believed to directly or indirectly affect the integrity of the endothelial barrier. One such mediator is serotonin (5-hydroxytryptamine, 5-HT), a signaling molecule which mediates a number of cellular functions including regulation of cytoskeletal dynamics associated with barrier function of endothelial cells. The actions of 5-HT are mediated by different types of receptors and terminated via an uptake mechanism of a 5-HT transporter (SERT) on the platelet and endothelial cell. Earlier studies revealed unexpected discoveries concerning the impact of 5-HT signaling on the permeability of the endothelial barrier. These findings have been supported by the clinical reports on the anti-inflammatory property of 5-HT reuptake inhibitor, SSRIs in treating sepsis-related morbidity and mortality. This review focuses on a wide-range of literature to pinpoint cellular and molecular mechanisms that mediate 5-HT-induced microvascular injury in sepsis pathogenesis.
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Affiliation(s)
- Fusun Kilic
- Biology Department, Merced College, Merced, California, USA
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8
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Ajanel A, Middleton EA. Alterations in the megakaryocyte transcriptome impacts platelet function in sepsis and COVID-19 infection. Thromb Res 2023; 231:247-254. [PMID: 37258336 PMCID: PMC10198739 DOI: 10.1016/j.thromres.2023.05.015] [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: 01/04/2023] [Revised: 04/04/2023] [Accepted: 05/16/2023] [Indexed: 06/02/2023]
Abstract
Platelets and their parent cell, the megakaryocyte (MK), are increasingly recognized for their roles during infection and inflammation. The MK residing in the bone marrow or arising from precursors trafficked to other organs for development go on to form platelets through thrombopoiesis. Infection, by direct and indirect mechanisms, can alter the transcriptional profile of MKs. The altered environment, whether mediated by inflammatory cytokines or other signaling mechanisms results in an altered platelet transcriptome. Platelets released into the circulation, in turn, interact with each other, circulating leukocytes and endothelial cells and contribute to the clearance of pathogens or the potentiation of pathophysiology through such mechanisms as immunothrombosis. In this article we hope to identify key contributions that explore the impact of an altered transcriptomic landscape during severe, systemic response to infection broadly defined as sepsis, and viral infections, including SARS-CoV2. We include current publications that outline the role of MKs from bone-marrow and extra-medullary sites as well as the circulating platelet. The underlying diseases result in thrombotic complications that exacerbate organ dysfunction and mortality. Understanding the impact of platelets on the pathophysiology of disease may drive therapeutic advances to improve the morbidity and mortality of these deadly afflictions.
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Affiliation(s)
- Abigail Ajanel
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; Department of Pathology, University of Utah, Salt Lake City, UT 84112, USA
| | - Elizabeth A Middleton
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA.
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9
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Kaiser R, Escaig R, Nicolai L. Hemostasis without clot formation: how platelets guard the vasculature in inflammation, infection, and malignancy. Blood 2023; 142:1413-1425. [PMID: 37683182 DOI: 10.1182/blood.2023020535] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/23/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Platelets are key vascular effectors in hemostasis, with activation signals leading to fast recruitment, aggregation, and clot formation. The canonical process of hemostasis is well-characterized and shares many similarities with pathological thrombus formation. However, platelets are also crucially involved in the maintenance of vascular integrity under both steady-state and inflammatory conditions by ensuring blood vessel homeostasis and preventing microbleeds. In these settings, platelets use distinct receptors, signaling pathways, and ensuing effector functions to carry out their deeds. Instead of simply forming clots, they mainly act as individual sentinels that swiftly adapt their behavior to the local microenvironment. In this review, we summarize previously recognized and more recent studies that have elucidated how anucleate, small platelets manage to maintain vascular integrity when faced with challenges of infection, sterile inflammation, and even malignancy. We dissect how platelets are recruited to the vascular wall, how they identify sites of injury, and how they prevent hemorrhage as single cells. Furthermore, we discuss mechanisms and consequences of platelets' interaction with leukocytes and endothelial cells, the relevance of adhesion as well as signaling receptors, in particular immunoreceptor tyrosine-based activation motif receptors, and cross talk with the coagulation system. Finally, we outline how recent insights into inflammatory hemostasis and vascular integrity may aid in the development of novel therapeutic strategies to prevent hemorrhagic events and vascular dysfunction in patients who are critically ill.
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Affiliation(s)
- Rainer Kaiser
- Medizinische Klinik und Poliklinik I, University Hospital Ludwig Maximilian University, Munich, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung e.V., Partner Site Munich Heart Alliance, Munich, Germany
| | - Raphael Escaig
- Medizinische Klinik und Poliklinik I, University Hospital Ludwig Maximilian University, Munich, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung e.V., Partner Site Munich Heart Alliance, Munich, Germany
| | - Leo Nicolai
- Medizinische Klinik und Poliklinik I, University Hospital Ludwig Maximilian University, Munich, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung e.V., Partner Site Munich Heart Alliance, Munich, Germany
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10
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Solomou EE, Delaporta P, Mantzou A, Tzannoudaki M, Diamantopoulos P, Salamaliki C, Kontandreopoulou CN, Vyniou NA, Perganti F, Papassotiriou I, Kattamis A. Evidence that platelets from transfusion-dependent β-thalassemia patients induce T cell activation. Clin Immunol 2023:109653. [PMID: 37269985 DOI: 10.1016/j.clim.2023.109653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/21/2023] [Accepted: 05/24/2023] [Indexed: 06/05/2023]
Abstract
A hypercoagulable state leading to increased risk for thrombotic events represents one of the most common complications observed in transfusion-dependent β-thalassemia (TDT) patients. TDT patients have increased frequencies of circulating activated platelets. However, there is no information so far if platelets from TDT patients can activate T cells. In the present study we showed that T cells treated with platelets from TDT patients showed significant increased surface expression of CD69 compared to the T cells treated with platelets from healthy individuals. Patients with splenectomy showed increased T cell activation compared to patients with intact spleen. No T cell activation was observed following incubation with plasma alone, nor with platelets from healthy subjects. The percentages of regulatory T cells (Tregs) were also examined. TDT patients showed statistically significant increased percentages of Tregs compared to healthy controls. Additionally, we observed a positive statistically significant correlation between the percentages of Tregs and the platelet-induced activated T cells in patients who were not treated with aspirin. TDT patients showed increased levels of sP-selectin, suPAR and GDF-15, molecules implicated in platelet activation. We show that platelets from TDT patients can activate T cells in vitro. This activation correlates with markers of platelet activation and increased numbers of Tregs, perhaps in an effort to eliminate immune dysregulation, conceivably secondary to platelet activation.
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Affiliation(s)
- Elena E Solomou
- University of Patras Medical School, Department of Internal Medicine, Rio 26500, Greece.
| | - Polyxeni Delaporta
- First Department of Pediatrics, Thalassemia Unit, National and Kapodistrian University of Athens, School of Medicine, Greece
| | - Aimilia Mantzou
- First Department of Pediatrics, Thalassemia Unit, National and Kapodistrian University of Athens, School of Medicine, Greece
| | - Marianna Tzannoudaki
- Department of Immunology-Histocompatibility, Specialized Center and Referral Center for Primary Immunodeficiencies-Pediatric Immunology, "Aghia Sophia" Children's Hospital, Athens, Greece
| | - Panagiotis Diamantopoulos
- First Department of Internal Medicine, National and Kapodistrian University of Athens, School of Medicine, Greece
| | - Christina Salamaliki
- University of Patras Medical School, Department of Internal Medicine, Rio 26500, Greece
| | | | - Nora-Athina Vyniou
- First Department of Internal Medicine, National and Kapodistrian University of Athens, School of Medicine, Greece
| | - Foteini Perganti
- First Department of Pediatrics, Thalassemia Unit, National and Kapodistrian University of Athens, School of Medicine, Greece
| | - Ioannis Papassotiriou
- First Department of Pediatrics, Thalassemia Unit, National and Kapodistrian University of Athens, School of Medicine, Greece
| | - Antonis Kattamis
- First Department of Pediatrics, Thalassemia Unit, National and Kapodistrian University of Athens, School of Medicine, Greece
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11
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Ebermeyer T, Hequet O, Berard F, Prier A, Eyraud MA, Arthaud CA, Heestermans M, Duchez AC, Guironnet-Paquet A, Berthelot P, Cognasse F, Hamzeh-Cognasse H. The efficacy of therapeutic plasma exchange in COVID-19 patients on endothelial tightness in vitro is hindered by platelet activation. Front Cardiovasc Med 2023; 10:1094786. [PMID: 37215546 PMCID: PMC10192624 DOI: 10.3389/fcvm.2023.1094786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 04/20/2023] [Indexed: 05/24/2023] Open
Abstract
Coronavirus disease (COVID)-19 is characterised in particular by vascular inflammation with platelet activation and endothelial dysfunction. During the pandemic, therapeutic plasma exchange (TPE) was used to reduce the cytokine storm in the circulation and delay or prevent ICU admissions. This procedure consists in replacing the inflammatory plasma by fresh frozen plasma from healthy donors and is often used to remove pathogenic molecules from plasma (autoantibodies, immune complexes, toxins, etc.). This study uses an in vitro model of platelet-endothelial cell interactions to assess changes in these interactions by plasma from COVID-19 patients and to determine the extent to which TPE reduces such changes. We noted that exposure of an endothelial monolayer to plasmas from COVID-19 patients post-TPE induced less endothelial permeability compared to COVID-19 control plasmas. Yet, when endothelial cells were co-cultured with healthy platelets and exposed to the plasma, the beneficial effect of TPE on endothelial permeability was somewhat reduced. This was linked to platelet and endothelial phenotypical activation but not with inflammatory molecule secretion. Our work shows that, in parallel to the beneficial removal of inflammatory factors from the circulation, TPE triggers cellular activation which may partly explain the reduction in efficacy in terms of endothelial dysfunction. These findings provide new insights for improving the efficacy of TPE using supporting treatments targeting platelet activation, for instance.
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Affiliation(s)
- Theo Ebermeyer
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
| | - Olivier Hequet
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
- CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, CNRS, UMR5308, ENS Lyon, UJM, Université Claude Bernard Lyon 1, Université Jean Monnet de Saint-Etienne, Lyon, France
| | - Frederic Berard
- CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, CNRS, UMR5308, ENS Lyon, UJM, Université Claude Bernard Lyon 1, Université Jean Monnet de Saint-Etienne, Lyon, France
- Groupement Hospitalier Sud, Allergy and Clinical Immunology Department, Hospices Civils de Lyon, Lyon, France
| | - Amelie Prier
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
| | - Marie-Ange Eyraud
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
| | - Charles-Antoine Arthaud
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
| | - Marco Heestermans
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
| | - Anne-Claire Duchez
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
| | - Aurelie Guironnet-Paquet
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
- CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, CNRS, UMR5308, ENS Lyon, UJM, Université Claude Bernard Lyon 1, Université Jean Monnet de Saint-Etienne, Lyon, France
| | - Philippe Berthelot
- CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, CNRS, UMR5308, ENS Lyon, UJM, Université Claude Bernard Lyon 1, Université Jean Monnet de Saint-Etienne, Lyon, France
- University Hospital of Saint-Etienne, Infectious Diseases Department, F-42023, Saint-Etienne, France
| | - Fabrice Cognasse
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Research Department, F-42023, Saint-Etienne, France
| | - Hind Hamzeh-Cognasse
- INSERM, U 1059 SAINBIOSE, Université Jean Monnet, Mines Saint-Étienne, F-42023, Saint-Etienne, France
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12
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Raj N, Greune L, Kahms M, Mildner K, Franzkoch R, Psathaki OE, Zobel T, Zeuschner D, Klingauf J, Gerke V. Early Endosomes Act as Local Exocytosis Hubs to Repair Endothelial Membrane Damage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300244. [PMID: 36938863 PMCID: PMC10161044 DOI: 10.1002/advs.202300244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/21/2023] [Indexed: 05/06/2023]
Abstract
The plasma membrane of a cell is subject to stresses causing ruptures that must be repaired immediately to preserve membrane integrity and ensure cell survival. Yet, the spatio-temporal membrane dynamics at the wound site and the source of the membrane required for wound repair are poorly understood. Here, it is shown that early endosomes, previously only known to function in the uptake of extracellular material and its endocytic transport, are involved in plasma membrane repair in human endothelial cells. Using live-cell imaging and correlative light and electron microscopy, it is demonstrated that membrane injury triggers a previously unknown exocytosis of early endosomes that is induced by Ca2+ entering through the wound. This exocytosis is restricted to the vicinity of the wound site and mediated by the endosomal soluble N-ethylmaleimide sensitive factor attachment protein receptor (SNARE) VAMP2, which is crucial for efficient membrane repair. Thus, the newly identified Ca2+ -evoked and localized exocytosis of early endosomes supplies the membrane material required for rapid resealing of a damaged plasma membrane, thereby providing the first line of defense against damage in mechanically challenged endothelial cells.
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Affiliation(s)
- Nikita Raj
- Institute of Medical Biochemistry, Centre for Molecular Biology of Inflammation (ZMBE), Cells in Motion Interfaculty Center, University of Münster, 48149, Münster, Germany
| | - Lilo Greune
- Institute of Infectiology, Center for Molecular Biology of Inflammation (ZMBE), University of Münster, 48149, Münster, Germany
| | - Martin Kahms
- Institute of Medical Physics and Biophysics, University of Münster, 48149, Münster, Germany
| | - Karina Mildner
- Electron Microscopy Facility, Max Planck Institute for Molecular Biomedicine, 48149, Münster, Germany
| | - Rico Franzkoch
- Department of Biology, integrated Bioimaging Facility (iBiOs), Center of Cellular Nanoanalytics (CellNanO), University of Osnabrück, 49076, Osnabrück, Germany
| | - Olympia Ekaterini Psathaki
- Department of Biology, integrated Bioimaging Facility (iBiOs), Center of Cellular Nanoanalytics (CellNanO), University of Osnabrück, 49076, Osnabrück, Germany
| | - Thomas Zobel
- Imaging Network, Cells in Motion Interfaculty Centre, University of Münster, 48149, Münster, Germany
| | - Dagmar Zeuschner
- Electron Microscopy Facility, Max Planck Institute for Molecular Biomedicine, 48149, Münster, Germany
| | - Jürgen Klingauf
- Institute of Medical Physics and Biophysics, University of Münster, 48149, Münster, Germany
| | - Volker Gerke
- Institute of Medical Biochemistry, Centre for Molecular Biology of Inflammation (ZMBE), Cells in Motion Interfaculty Center, University of Münster, 48149, Münster, Germany
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13
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de Sousa DMB, Benedetti A, Altendorfer B, Mrowetz H, Unger MS, Schallmoser K, Aigner L, Kniewallner KM. Immune-mediated platelet depletion augments Alzheimer's disease neuropathological hallmarks in APP-PS1 mice. Aging (Albany NY) 2023; 15:630-649. [PMID: 36734880 PMCID: PMC9970308 DOI: 10.18632/aging.204502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 01/23/2023] [Indexed: 02/04/2023]
Abstract
In Alzheimer's disease (AD), platelets become dysfunctional and might contribute to amyloid beta deposition. Here, we depleted platelets in one-year-old APP Swedish PS1 dE9 (APP-PS1) transgenic mice for five days, using intraperitoneal injections of an anti-CD42b antibody, and assessed changes in cerebral amyloidosis, plaque-associated neuritic dystrophy and gliosis. In APP-PS1 female mice, platelet depletion shifted amyloid plaque size distribution towards bigger plaques and increased neuritic dystrophy in the hippocampus. In platelet-depleted females, plaque-associated Iba1+ microglia had lower amounts of fibrillar amyloid beta cargo and GFAP+ astrocytic processes showed a higher overlap with thioflavin S+ amyloid plaques. In contrast to the popular hypothesis that platelets foster plaque pathology, our data suggest that platelets might limit plaque growth and attenuate plaque-related neuritic dystrophy at advanced stages of amyloid plaque pathology in APP-PS1 female mice. Whether the changes in amyloid plaque pathology are due to a direct effect on amyloid beta deposition or are a consequence of altered glial function needs to be further elucidated.
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Affiliation(s)
- Diana M. Bessa de Sousa
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria,Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
| | - Ariane Benedetti
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria,Institute of Experimental Neuroregeneration, Paracelsus Medical University, Salzburg, Austria
| | - Barbara Altendorfer
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria,Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
| | - Heike Mrowetz
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria,Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
| | - Michael S. Unger
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria,Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
| | - Katharina Schallmoser
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria,Department of Transfusion Medicine, University Clinic, Paracelsus Medical University, Salzburg, Austria
| | - Ludwig Aigner
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria,Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Kathrin Maria Kniewallner
- Institute of Molecular Regenerative Medicine, Paracelsus Medical University, Salzburg, Austria,Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
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14
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Garraud O, Hamzeh-Cognasse H, Chalayer E, Duchez AC, Tardy B, Oriol P, Haddad A, Guyotat D, Cognasse F. Platelet transfusion in adults: An update. Transfus Clin Biol 2023; 30:147-165. [PMID: 36031180 DOI: 10.1016/j.tracli.2022.08.147] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Many patients worldwide receive platelet components (PCs) through the transfusion of diverse types of blood components. PC transfusions are essential for the treatment of central thrombocytopenia of diverse causes, and such treatment is beneficial in patients at risk of severe bleeding. PC transfusions account for almost 10% of all the blood components supplied by blood services, but they are associated with about 3.25 times as many severe reactions (attributable to transfusion) than red blood cell transfusions after stringent in-process leukoreduction to less than 106 residual cells per blood component. PCs are not homogeneous, due to the considerable differences between donors. Furthermore, the modes of PC collection and preparation, the safety precautions taken to limit either the most common (allergic-type reactions and febrile non-hemolytic reactions) or the most severe (bacterial contamination, pulmonary lesions) adverse reactions, and storage and conservation methods can all result in so-called PC "storage lesions". Some storage lesions affect PC quality, with implications for patient outcome. Good transfusion practices should result in higher levels of platelet recovery and efficacy, and lower complication rates. These practices include a matching of tissue ABH antigens whenever possible, and of platelet HLA (and, to a lesser extent, HPA) antigens in immunization situations. This review provides an overview of all the available information relating to platelet transfusion, from donor and donation to bedside transfusion, and considers the impact of the measures applied to increase transfusion efficacy while improving safety and preventing transfusion inefficacy and refractoriness. It also considers alternatives to platelet component (PC) transfusion.
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Affiliation(s)
- O Garraud
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France.
| | | | - E Chalayer
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Saint-Etienne University Hospital, Department of Hematology and Cellular Therapy, Saint-Étienne, France
| | - A C Duchez
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France
| | - B Tardy
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; CHU de Saint-Etienne, INSERM and CIC EC 1408, Clinical Epidemiology, Saint-Étienne, France
| | - P Oriol
- CHU de Saint-Etienne, INSERM and CIC EC 1408, Clinical Epidemiology, Saint-Étienne, France
| | - A Haddad
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Sacré-Cœur Hospital, Beirut, Lebanon; Lebanese American University, Beirut, Lebanon
| | - D Guyotat
- Saint-Etienne University Hospital, Department of Hematology and Cellular Therapy, Saint-Étienne, France
| | - F Cognasse
- SAINBIOSE, INSERM, U1059, University of Lyon, Saint-Étienne, France; Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France
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15
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Li Y, Yang X, Zhou H, Hui X, Li H, Zheng J. A high neutrophil-to-platelet ratio is associated with hematoma expansion in patients with spontaneous intracerebral hemorrhage: a retrospective study. BMC Neurol 2023; 23:27. [PMID: 36653741 PMCID: PMC9847168 DOI: 10.1186/s12883-023-03055-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 01/06/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Early hematoma expansion (HE) occurs in 20 to 40% of spontaneous intracerebral hemorrhage (ICH) patients and is a primary determinant of early deterioration and poor prognosis. Previous studies have shown that inflammation is a major pathological feature of ICH, and the neutrophil-to-platelet ratio (NPR) is a marker of systemic inflammation. Therefore, we aimed to assess the association between the NPR and HE in ICH patients. METHODS We retrospectively collected and analyzed data from ICH patients who received treatment at our institution from January 2018 to November 2019. The NPR was calculated from the admission blood test. Brain computed tomography (CT) scans were performed at admission and repeated within 24 h. Hematoma growth was defined as relative growth > 33% or absolute growth > 6 ml. RESULTS A total of 317 patients were enrolled in our study. Multivariate logistic regression analysis indicated that the NPR was an independent predictor of HE [odds ratio (OR) = 1.742; 95% CI: 1.508-2.012, p < 0.001]. Receiver operating characteristic (ROC) curve analysis revealed that the NPR could predict HE, with an area under the curve of 0.838 (95% CI, 0.788-0.888, p < 0.001). The best predictive cut-off of the NPR for HE was 5.47 (sensitivity, 75.3%; specificity, 77.6%). CONCLUSIONS A high NPR was associated with an increased risk of HE in patients with ICH.
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Affiliation(s)
- Yujian Li
- grid.412901.f0000 0004 1770 1022Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Wu Hou District, 610041 Chengdu, P.R. China
| | - Xiang Yang
- grid.412901.f0000 0004 1770 1022Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Wu Hou District, 610041 Chengdu, P.R. China
| | - Huiqing Zhou
- grid.460079.cDepartment of Intensive Care Unit, Fourth People’s Hospital of Sichuan Province, Chengdu, P.R. China
| | - Xuhui Hui
- grid.412901.f0000 0004 1770 1022Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Wu Hou District, 610041 Chengdu, P.R. China
| | - Hao Li
- grid.412901.f0000 0004 1770 1022Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Wu Hou District, 610041 Chengdu, P.R. China
| | - Jun Zheng
- grid.412901.f0000 0004 1770 1022Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Wu Hou District, 610041 Chengdu, P.R. China
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16
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Aqdas M, Sung MH. NF-κB dynamics in the language of immune cells. Trends Immunol 2023; 44:32-43. [PMID: 36473794 PMCID: PMC9811507 DOI: 10.1016/j.it.2022.11.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 12/05/2022]
Abstract
Biological discovery has been driven by advances in throughput and resolution of analysis technologies. They have also created an indelible bias for snapshot-based knowledge. Even though recent methods such as multi-omics single-cell assays have empowered immunological investigations, they still provide snapshots of cellular behaviors and thus, have inherent limitations in reconstructing unsynchronized dynamic events across individual cells. Here, we present a rationale for how NF-κB may convey specificity of contextual information through subtle quantitative features of its signaling dynamics. The next frontier of predictive understanding should involve functional characterization of NF-κB signaling dynamics and their immunological implications. This may help solve the apparent paradox that a ubiquitously activated transcription factor can shape accurate responses to different immune challenges.
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Affiliation(s)
- Mohammad Aqdas
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Myong-Hee Sung
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA.
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17
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Yoon SM, Lee J, Lee SM, Lee HY. Incidence and clinical outcomes of bacterial superinfections in critically ill patients with COVID-19. Front Med (Lausanne) 2023; 10:1079721. [PMID: 36936237 PMCID: PMC10017481 DOI: 10.3389/fmed.2023.1079721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
Background Bacterial superinfection is not uncommon in critically ill patients with coronavirus disease (COVID-19) pneumonia requiring intensive care unit (ICU) treatment. However, there is still a lack of evidence related to bacterial superinfection and their clinical significance in critically ill patients with COVID-19. Therefore, we assessed the incidence of bacterial superinfections and their effects on clinical outcomes in critically ill patients with COVID-19. Materials and methods This single-center retrospective cohort study analyzed critically ill patients with COVID-19 admitted to the ICU at a tertiary academic hospital between February 2020 and December 2021. We reviewed data including patient demographics, clinical and microbiological characteristics, and outcomes. Results During the study period, 106 patients (median [IQR] age, 67 [58-75] years) were included, of which 32 (30%) were diagnosed with bacterial superinfections. Of these, 12 cases (38%) were associated with multidrug-resistant pathogens. Klebsiella aerogenes (6 cases [19%]) and Klebsiella pneumoniae (6 cases [19%]) were the most common pathogens associated with superinfections. The median time to bacterial superinfection was 13 (IQR, 9-20) days after ICU admission. Patients with bacterial superinfections had significantly fewer ventilator-free days on day 28 (0 [IQR, 0-0] days) than those without bacterial superinfections (19 [IQR, 0-22] days) (p < 0.001). Patients with bacterial superinfections had a longer ICU length of stay (32 [IQR, 9-53] days) than those without bacterial superinfections (11 [IQR, 7-18] days) (p < 0.001). Additionally, they had a longer hospital length of stay after ICU admission (39 [IQR, 18-62] days) than those without bacterial superinfections (18 [IQR, 12-37] days) (p = 0.001). There were no differences in ICU mortality or in-hospital mortality between the two groups. In the multivariable analysis, higher SAPS II score (OR, 2.697; 95% CI, 1.086-6.695) and thrombocytopenia (OR, 3.318; 95% CI, 1.355-8.123) were identified as risk factors for development of bacterial superinfection. Conclusion In critically ill patients with COVID-19, bacterial superinfections were common, and more than one-third of the bacterial superinfection cases were caused by multidrug-resistant pathogens. As patients with bacterial superinfections had worse clinical outcomes, the development of bacterial superinfections should be actively monitored.
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Affiliation(s)
- Si Mong Yoon
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jinwoo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sang-Min Lee
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Republic of Korea
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hong Yeul Lee
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Republic of Korea
- *Correspondence: Hong Yeul Lee,
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18
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Corzo-Gómez J, Picazo O, Castellanos-Pérez M, Briones-Aranda A. Systematic Review of the Serotonergic System in the Pathophysiology of Severe Dengue: The Theory of Thrombocytopenia and Vascular Extravasation. Mini Rev Med Chem 2023; 23:230-243. [PMID: 35726421 DOI: 10.2174/1389557522666220619231643] [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: 03/25/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Severe dengue is characterized by thrombocytopenia, hemorrhaging, and/or capillary extravasation and may be linked to a reduced plasma concentration of serotonin (5-hydroxytriptamine, or 5-HT). OBJECTIVE The aim of the current contribution was to conduct a systematic bibliographic review of reports on the role of the peripheral serotonergic system in the pathophysiology of severe dengue. METHODS A bibliographic review was carried out of in vivo/in vitro models, clinical trials, and case series studies from 2010-2019. The selective criteria were the use of treatments with serotonin reuptake inhibitors and/or agonists/antagonists of 5-HT receptors and their impact on inflammation, coagulation, and endothelium. Moreover, cross-sectional and cohort studies on the relationship between intraplatelet and plasma 5-HT levels in patients with dengue were also included. The risk of bias in the selected reports was examined with domain-based assessment utilizing Cochrane-type criteria. The main results are summarized in Tables and Figures. RESULTS Based on descriptions of the effect of serotonergic drugs on 5-HT levels and the findings of clinical trials of dengue treatment, most receptors of the peripheral serotonergic system, and especially 5-HT2A, seem to participate in regulating serum 5-HT during severe dengue. Therefore, the peripheral serotonergic system probably contributes to thrombocytopenia and capillary extravasation. CONCLUSION Regarding dengue, 5-HT may be a key parameter for predicting severity, and an understanding of 5-HT-related mechanisms could possibly facilitate the development of new therapies. These proposals require further research due to the limited number of publications on the role of serotonergic receptors at the peripheral level.
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Affiliation(s)
- Josselin Corzo-Gómez
- Pharmacology Laboratory, Faculty of Human Medicine, Autonomous University of Chiapas, Tuxtla Gutiérrez, Chiapas, México
| | - Ofir Picazo
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, México City, México
| | - Manuela Castellanos-Pérez
- Pharmacology Laboratory, Faculty of Human Medicine, Autonomous University of Chiapas, Tuxtla Gutiérrez, Chiapas, México
| | - Alfredo Briones-Aranda
- Pharmacology Laboratory, Faculty of Human Medicine, Autonomous University of Chiapas, Tuxtla Gutiérrez, Chiapas, México
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Ke Y, Ma Z, Ye H, Guan X, Xiang Z, Xia Y, Shi Q. Chlorogenic Acid-Conjugated Nanoparticles Suppression of Platelet Activation and Disruption to Tumor Vascular Barriers for Enhancing Drug Penetration in Tumor. Adv Healthc Mater 2022; 12:e2202205. [PMID: 36509084 DOI: 10.1002/adhm.202202205] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/25/2022] [Indexed: 12/14/2022]
Abstract
Hypercoagulation threatens the lives of cancer patients and cancer progression. Platelet overactivation attributes to the tumor-associated hypercoagulation and maintenance of the tumor endothelial integrity, leading to limited intratumoral perfusion of nanoagents into solid tumors in spite of the enhanced penetration and retention effect (EPR). Therefore, the clinical application of nanotherapeutics in solid cancer still faces great challenges. Herein, this work establishes platelet inhibiting nanoagents based on FeIII -doped C3 N4 coloaded with the chemotherapy drug and the antiplatelet drug chlorogenic acid (CA), further opening tumor vascular endothelial junctions, thereby disrupting the tumor vascular endothelial integrity, and enhancing drug perfusion. Moreover, CA not only damages the cancer cells but also potentiates the cytotoxicity induced by the chemotherapy drug doxorubicin, synergistically ablating the tumor tissue. Further, the introduction of CA relieves the original causes of the hypercoagulable state such as tissue factor (TF), thrombin, and matrix metalloproteinases (MMPs) secreted by cancer cells. It is anticipated that the hypercoagulation- and platelet-inhibition strategy by integration of phenolic acid CA into chemotherapy provides insights into platelet inhibition-assisted theranostics based on nanomedicines.
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Affiliation(s)
- Yue Ke
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zhifang Ma
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Hongbo Ye
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Xinghua Guan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Zehong Xiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yu Xia
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Qiang Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
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20
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Regulatory Effects of Curcumin on Platelets: An Update and Future Directions. Biomedicines 2022; 10:biomedicines10123180. [PMID: 36551934 PMCID: PMC9775400 DOI: 10.3390/biomedicines10123180] [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: 10/14/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
The rhizomatous plant turmeric, which is frequently used as a spice and coloring ingredient, yields curcumin, a bioactive compound. Curcumin inhibits platelet activation and aggregation and improves platelet count. Platelets dysfunction results in several disorders, including inflammation, atherothrombosis, and thromboembolism. Several studies have proved the beneficial role of curcumin on platelets and hence proved it is an important candidate for the treatment of the aforementioned diseases. Moreover, curcumin is also frequently employed as an anti-inflammatory agent in conventional medicine. In arthritic patients, it has been shown to reduce the generation of pro-inflammatory eicosanoids and to reduce edema, morning stiffness, and other symptoms. Curcumin taken orally also reduced rats' acute inflammation brought on by carrageenan. Curcumin has also been proven to prevent atherosclerosis and platelet aggregation, as well as to reduce angiogenesis in adipose tissue. In the cerebral microcirculation, curcumin significantly lowered platelet and leukocyte adhesion. It largely modulated the endothelium to reduce platelet adhesion. Additionally, P-selectin expression and mice survival after cecal ligation and puncture were improved by curcumin, which also altered platelet and leukocyte adhesion and blood-brain barrier dysfunction. Through regulating many processes involved in platelet aggregation, curcuminoids collectively demonstrated detectable antiplatelet activity. Curcuminoids may therefore be able to prevent disorders linked to platelet activation as possible therapeutic agents. This review article proposes to highlight and discuss the regulatory effects of curcumin on platelets.
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Filippelli A, Del Gaudio C, Simonis V, Ciccone V, Spini A, Donnini S. Scoping Review on Platelets and Tumor Angiogenesis: Do We Need More Evidence or Better Analysis? Int J Mol Sci 2022; 23:13401. [PMID: 36362186 PMCID: PMC9656254 DOI: 10.3390/ijms232113401] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 08/24/2023] Open
Abstract
Platelets are an active component of the tumor microenvironment (TME), involved in the regulation of multiple tumor processes, including angiogenesis. They are generated rich in angiogenic factors in their granules to actively participate in the hemostatic process by megakaryocytes and further enriched in angiogenic factors by all components of the tumor microenvironment to control the angiogenic process because of their preferential relationship with the endothelial component of vessels. In recent decades, the literature has reported a great deal of evidence on the role of platelets in tumor angiogenesis; however, it is unclear whether the number or mean volume of platelets and/or their content and localization in TME may have clinical relevance in the choice and management of therapy for the cancer patient. In this scoping review, we collected and critically reviewed the scientific evidence supporting a close relationship between platelets, cancer, and angiogenesis. The aim of this work was to define the landscape of platelet-activated angiogenesis in cancer progression and analyze what and how much evidence is present in the last 20 years in the literature at both the preclinical and clinical levels, to answer whether platelets could be a useful determinant for analyzing tumor angiogenesis. In conclusion, this scoping review indicates that there is much evidence, both preclinical and clinical, but in the preclinical context, studies demonstrate the direct involvement of platelets in tumor angiogenesis; in the clinical context the evidence is indirect, though strong, and the indication of how and to what extent platelet content contributes to tumor angiogenesis is lacking. So, do we need more evidence or better analysis? More molecular and quali-quantitative data is needed to translate the results obtained in preclinical studies into the clinical setting. This information about platelets, if correlated with tumor type and its biology, including tumor vasculature, type of angiogenesis, and patient characteristics (age, sex, comorbidities, drug treatments for chronic diseases) could be an important pa- rameter for correlating platelet biology to angiogenesis, for personalizing cancer therapy, and for clinical prognosis.
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Affiliation(s)
- Arianna Filippelli
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Cinzia Del Gaudio
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Vittoria Simonis
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Valerio Ciccone
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Andrea Spini
- Department of Medical Science, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
- Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | - Sandra Donnini
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy
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22
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Garishah FM, Huskens D, Pramudo SG, Andriani D, Astrilia M, Sentosa RA, van der Ven AJAM, Laat BD, Gasem MH, de Mast Q, Roest M. Hyperresponsive Platelets and a Reduced Platelet Granule Release Capacity Are Associated with Severity and Mortality in COVID-19 Patients. Thromb Haemost 2022; 122:2001-2010. [PMID: 36220126 DOI: 10.1055/s-0042-1757163] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is often associated with mild thrombocytopenia and increased platelet reactivity. OBJECTIVE The aim of the current study was to investigate the adenosine triphosphate (ATP) release kinetics of platelets in hospitalized SARS-CoV-2-infected patients. METHODS We studied time-dependent platelet activation in whole blood by monitoring the ATP release kinetics upon stimulation with a PAR1 receptor agonist in 41 hospitalized critically ill COVID-19 patients, 47 hospitalized noncritically ill COVID-19 patients, and 30 healthy controls. RESULTS Our study demonstrated that platelets of critically ill COVID-19 patients were hyper-responsive with a shorter platelet response time (PRT) and a reduced platelet granule release capacity (GRC), probably due to chronic activation. The median PRT of COVID-19 patients admitted to the critical care unit was 10 and 7 seconds shorter than the median PRT in healthy controls and noncritical COVID-19 patients, respectively. Both PRT and GRC were also associated with D-dimer (Spearman r [r s] = -0.51, p < 0.0001 and r s = -0.23, p < 0.05), C-reactive protein (CRP) (r s = -0.59, p < 0.0001 and r s = -0.41, p < 0.01), and neutrophil-to-lymphocyte ratio (NLR) (r s = -0.42, p < 0.0001 and r s = -0.26, p < 0.05). Moreover, an increased PRT and a reduced GRC were associated with an increased mortality (odds ratio [OR]: 18.8, 95% confidence interval [CI]: 6.5-62.8, p < 0.0001 and OR: 4.0; 95% CI: 1.6-10.4, p < 0.01). These relationships remained significant after adjustment for age, sex, D-dimer, CRP, and NLR. CONCLUSION Using an accessible agonist-induced platelet granule ATP release assay, we show that platelet hyper-responsiveness and reduced platelet GRC in COVID-19 patients were associated with critical illness and mortality.
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Affiliation(s)
- Fadel Muhammad Garishah
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine, Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia
| | - Dana Huskens
- Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, The Netherlands.,Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Setyo Gundi Pramudo
- Department of Internal Medicine, Diponegoro National University Hospital, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Dessy Andriani
- Department of Internal Medicine, KRMT Wongsonegoro General Hospital, Semarang, Indonesia
| | - Mila Astrilia
- Department of Internal Medicine, KRMT Wongsonegoro General Hospital, Semarang, Indonesia
| | - Rizki Akbar Sentosa
- Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine, Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia.,Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, The Netherlands.,Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands.,Department of Internal Medicine, Diponegoro National University Hospital, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - André J A M van der Ven
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Bas de Laat
- Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, The Netherlands.,Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Muhammad Hussein Gasem
- Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine, Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia.,Department of Internal Medicine, Diponegoro National University Hospital, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Quirijn de Mast
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mark Roest
- Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, The Netherlands
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23
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Xiang M, Wu X, Jing H, Liu L, Wang C, Wang Y, Novakovic VA, Shi J. The impact of platelets on pulmonary microcirculation throughout COVID-19 and its persistent activating factors. Front Immunol 2022; 13:955654. [PMID: 36248790 PMCID: PMC9559186 DOI: 10.3389/fimmu.2022.955654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 08/15/2022] [Indexed: 12/05/2022] Open
Abstract
Patients with COVID-19 often have hypoxemia, impaired lung function, and abnormal imaging manifestations in acute and convalescent stages. Alveolar inflammation, pulmonary vasculitis, and thromboembolism synergistically damage the blood-air barrier, resulting in increased pulmonary permeability and gas exchange disorders. The incidence of low platelet counts correlates with disease severity. Platelets are also involved in the impairment of pulmonary microcirculation leading to abnormal lung function at different phases of COVID-19. Activated platelets lose the ability to protect the integrity of blood vessel walls, increasing the permeability of pulmonary microvasculature. High levels of platelet activation markers are observed in both mild and severe cases, short and long term. Therefore, the risk of thrombotic events may always be present. Vascular endothelial injury, immune cells, inflammatory mediators, and hypoxia participate in the high reactivity and aggregation of platelets in various ways. Microvesicles, phosphatidylserine (PS), platelets, and coagulation factors are closely related. The release of various cell-derived microvesicles can be detected in COVID-19 patients. In addition to providing a phospholipid surface for the synthesis of intrinsic factor Xase complex and prothrombinase complex, exposed PS also promotes the decryption of tissue factor (TF) which then promotes coagulant activity by complexing with factor VIIa to activate factor X. The treatment of COVID-19 hypercoagulability and thrombosis still focuses on early intervention. Antiplatelet therapy plays a role in relieving the disease, inhibiting the formation of the hypercoagulable state, reducing thrombotic events and mortality, and improving sequelae. PS can be another potential target for the inhibition of hypercoagulable states.
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Affiliation(s)
- Mengqi Xiang
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Xiaoming Wu
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Haijiao Jing
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Langjiao Liu
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Chunxu Wang
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Yufeng Wang
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
| | - Valerie A. Novakovic
- Department of Research, Veterans Affairs (VA) Boston Healthcare System, Harvard Medical School, Boston, MA, United States
| | - Jialan Shi
- Department of Hematology, the First Hospital, Harbin Medical University, Harbin, China
- Department of Research, Veterans Affairs (VA) Boston Healthcare System, Harvard Medical School, Boston, MA, United States
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
- *Correspondence: Jialan Shi, ;
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24
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Sekaran SD, Liew ZM, Yam HC, Raju CS. The association between diabetes and obesity with Dengue infections. Diabetol Metab Syndr 2022; 14:101. [PMID: 35864519 PMCID: PMC9301891 DOI: 10.1186/s13098-022-00870-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/28/2022] [Indexed: 12/03/2022] Open
Abstract
Dengue, an arboviral disease is a global threat to public health as the number of Dengue cases increases through the decades and this trend is predicted to continue. Non-communicable diseases such as diabetes and obesity are also on an upward trend. Moreover, past clinical studies have shown comorbidities worsen the clinical manifestation of especially Severe Dengue. However, discussion regarding the underlying mechanisms regarding the association between these comorbidities and dengue are lacking. The hallmark of Severe Dengue is plasma leakage which is due to several factors including presence of pro-inflammatory cytokines and dysregulation of endothelial barrier protein expression. The key factors of diabetes affecting endothelial functions are Th1 skewed responses and junctional-related proteins expression. Additionally, obesity alters the lipid metabolism and immune response causing increased viral replication and inflammation. The similarity between diabetes and obesity individuals is in having chronic inflammation resulting in endothelial dysfunction. This review outlines the roles of diabetes and obesity in severe dengue and gives some insights into the plausible mechanisms of comorbidities in Severe Dengue.
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Affiliation(s)
- S D Sekaran
- Faculty of Medicine and Health Sciences, UCSI University Springhill Campus, Port Dickson, 70100, Negri Sembilan, Malaysia.
| | - Z M Liew
- Faculty of Applied Science, UCSI University Kuala Lumpur, Kuala Lumpur, 56000, Malaysia
| | - H C Yam
- Faculty of Applied Science, UCSI University Kuala Lumpur, Kuala Lumpur, 56000, Malaysia
| | - C S Raju
- Department of Medical Microbiology, Faculty of Medicine, University Malaya, Kuala Lumpur, 50603, Malaysia
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25
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Jagadapillai R, Qiu X, Ojha K, Li Z, El-Baz A, Zou S, Gozal E, Barnes GN. Potential Cross Talk between Autism Risk Genes and Neurovascular Molecules: A Pilot Study on Impact of Blood Brain Barrier Integrity. Cells 2022; 11:2211. [PMID: 35883654 PMCID: PMC9315816 DOI: 10.3390/cells11142211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 12/10/2022] Open
Abstract
Autism Spectrum Disorder (ASD) is a common pediatric neurobiological disorder with up to 80% of genetic etiologies. Systems biology approaches may make it possible to test novel therapeutic strategies targeting molecular pathways to alleviate ASD symptoms. A clinical database of autism subjects was queried for individuals with a copy number variation (CNV) on microarray, Vineland, and Parent Concern Questionnaire scores. Pathway analyses of genes from pathogenic CNVs yielded 659 genes whose protein-protein interactions and mRNA expression mapped 121 genes with maximal antenatal expression in 12 brain regions. A Research Domain Criteria (RDoC)-derived neural circuits map revealed significant differences in anxiety, motor, and activities of daily living skills scores between altered CNV genes and normal microarrays subjects, involving Positive Valence (reward), Cognition (IQ), and Social Processes. Vascular signaling was identified as a biological process that may influence these neural circuits. Neuroinflammation, microglial activation, iNOS and 3-nitrotyrosine increase in the brain of Semaphorin 3F- Neuropilin 2 (Sema 3F-NRP2) KO, an ASD mouse model, agree with previous reports in the brain of ASD individuals. Signs of platelet deposition, activation, release of serotonin, and albumin leakage in ASD-relevant brain regions suggest possible blood brain barrier (BBB) deficits. Disruption of neurovascular signaling and BBB with neuroinflammation may mediate causative pathophysiology in some ASD subgroups. Although preliminary, these data demonstrate the potential for developing novel therapeutic strategies based on clinically derived data, genomics, cognitive neuroscience, and basic neuroscience methods.
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Affiliation(s)
- Rekha Jagadapillai
- Department of Neurology, Pediatric Research Institute, Louisville, KY 40202, USA; (R.J.); (X.Q.); (K.O.)
- University of Louisville Autism Center, Louisville, KY 40217, USA
| | - Xiaolu Qiu
- Department of Neurology, Pediatric Research Institute, Louisville, KY 40202, USA; (R.J.); (X.Q.); (K.O.)
- University of Louisville Autism Center, Louisville, KY 40217, USA
- Department of Pediatrics, Pediatric Research Institute, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Child Health, Jiangxi Provincial Children’s Hospital, Donghu District, Nanchang 330006, China;
| | - Kshama Ojha
- Department of Neurology, Pediatric Research Institute, Louisville, KY 40202, USA; (R.J.); (X.Q.); (K.O.)
- University of Louisville Autism Center, Louisville, KY 40217, USA
| | - Zhu Li
- Department of Neurology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA;
| | - Ayman El-Baz
- Department of Bioengineering, University of Louisville Speed School, Louisville, KY 40292, USA;
| | - Shipu Zou
- Department of Child Health, Jiangxi Provincial Children’s Hospital, Donghu District, Nanchang 330006, China;
| | - Evelyne Gozal
- Department of Pediatrics, Pediatric Research Institute, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Gregory N. Barnes
- Department of Neurology, Pediatric Research Institute, Louisville, KY 40202, USA; (R.J.); (X.Q.); (K.O.)
- University of Louisville Autism Center, Louisville, KY 40217, USA
- Department of Pediatrics, Pediatric Research Institute, University of Louisville School of Medicine, Louisville, KY 40202, USA
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26
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Kim D, Shin DY, Liu J, Jeong NR, Koh Y, Hong J, Huang X, Broxmeyer HE, Yoon SS. Expansion of Human Megakaryocyte-Lineage Progeny via Aryl Hydrocarbon Receptor Antagonism with CH223191. Stem Cell Rev Rep 2022; 18:2982-2994. [PMID: 35687264 DOI: 10.1007/s12015-022-10386-0] [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] [Accepted: 04/29/2022] [Indexed: 11/26/2022]
Abstract
Aryl hydrocarbon receptor (AhR) antagonism is known to expand human hematopoietic stem cells (HSCs). However, its regulatory effect on the lineage-skewed differentiation of HSCs has not been sufficiently studied. Here, we investigate the effect of the AhR-selective antagonist CH223191 on the regulation of HSC differentiation. Consistent with the well-known effects of AhR antagonists, CH223191 treatment increase phenotypic HSCs (Lin-CD34 + CD38-CD90 + CD45RA-) and preserves their functionality. On the other hand, CH223191 leads to an overall expansion of megakaryocyte (MK)-lineage populations, such as MK progenitors (MKps, CD34 + CD41 +), immature MKs (CD41 + CD42b-), and mature MKs (CD41 + CD42b +), and it also activates MK/platelet-associated signaling pathways. Furthermore, CH223191 expands MKps, mature MKs, and p-selectin (CD62p)-positive platelet-like particles in immune thrombocytopenia (ITP) patient bone marrow (BM). These results highlight the numerical expansion of human MK-lineage progeny through AhR antagonism with CH223191. This approach using CH2231291 may be applicable in the development of auxiliary treatment regimens for patients with abnormal thrombopoiesis.
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Affiliation(s)
- Dongchan Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Center for Medical Innovation of Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Dong-Yeop Shin
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
- Center for Medical Innovation of Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
- Department of Internal Medicine, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
| | - Jun Liu
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Center for Medical Innovation of Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Na-Rae Jeong
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Center for Medical Innovation of Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Youngil Koh
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Center for Medical Innovation of Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Junshik Hong
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Center for Medical Innovation of Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Xinxin Huang
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine (IUSM), Indianapolis, IN, USA
| | - Sung-Soo Yoon
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.
- Center for Medical Innovation of Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
- Department of Internal Medicine, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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27
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Procoagulant platelet sentinels prevent inflammatory bleeding through GPIIBIIIA and GPVI. Blood 2022; 140:121-139. [PMID: 35472164 DOI: 10.1182/blood.2021014914] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/12/2022] [Indexed: 11/20/2022] Open
Abstract
Impairment of vascular integrity is a hallmark of inflammatory diseases. We recently reported that single immune-responsive platelets migrate and re-position themselves to sites of vascular injury to prevent bleeding. However, it remains unclear how single platelets preserve vascular integrity once encountering endothelial breaches. Here we demonstrate by intravital microscopy combined with genetic mouse models that procoagulant activation (PA) of single platelets and subsequent recruitment of the coagulation cascade are crucial for the prevention of inflammatory bleeding. Using a novel lactadherin-based compound we detect phosphatidylserine (PS)-positive procoagulant platelets in the inflamed vasculature. We identify exposed collagen as the central trigger arresting platelets and initiating subsequent PA in a CypD- and TMEM16F-dependent manner both in vivo and in vitro. Platelet PA promotes binding of the prothrombinase complex to the platelet membrane, greatly enhancing thrombin activity resulting in fibrin formation. PA of migrating platelets is initiated by co-stimulation via integrin αIIbβ3 (GPIIBIIIA)/Gα13-mediated outside-in-signaling and GPVI signaling, leading to an above-threshold intracellular calcium release. This effectively targets the coagulation cascade to breaches of vascular integrity identified by patrolling platelets. Platelet-specific genetic loss of either CypD or TMEM16F as well as combined blockade of platelet GPIIBIIIA and GPVI reduce platelet PA in vivo and aggravate pulmonary inflammatory hemorrhage. Our findings illustrate a novel role of procoagulant platelets in the prevention of inflammatory bleeding and provide evidence that PA of patrolling platelet sentinels effectively targets and confines activation of coagulation to breaches of vascular integrity.
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28
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Proteomics and Metabolomics Profiling of Platelets and Plasma Mediators of Thrombo-Inflammation in Gestational Hypertension and Preeclampsia. Cells 2022; 11:cells11081256. [PMID: 35455936 PMCID: PMC9027992 DOI: 10.3390/cells11081256] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/02/2022] [Accepted: 04/05/2022] [Indexed: 02/04/2023] Open
Abstract
Platelets may be pivotal mediators of the thrombotic and coagulopathic complications of preeclampsia (PE), linking inflammation and thrombosis with endothelial and vascular dysfunction. Both PE and gestational hypertension (GH) fall within the spectrum of hypertensive complications of pregnancy, with GH being a risk factor for preeclampsia. However, it is unclear what biomarkers distinguish PE from GH. Using a discovery size cohort, we aimed to characterize specific plasma and platelet thrombo-inflammatory drivers indicative of PE and differentiate PE from GH. We performed multiplex immunoassays, platelet and plasma quantitative proteomics and metabolomics of PE patients, comparing with non-pregnant (NP), healthy pregnant controls (PC) and GH participants. The expression pattern of plasma proteins and metabolites in PE/GH platelets was distinct from that of NP and PC. Whilst procoagulation in PC may be fibrinogen driven, inter-alpha-trypsin inhibitors ITIH2 and ITIH3 are likely mediators of thrombo-inflammation in GH and PE, and fibronectin and S100A8/9 may be major procoagulant agonists in PE only. Also enriched in PE were CCL1 and CCL27 plasma cytokines, and the platelet leucine-rich repeat-containing protein 27 and 42 (LRRC27/42), whose effects on platelets were explored using STRING analysis. Through protein-protein interactions analysis, we generated a new hypothesis for platelets’ contribution to the thrombo-inflammatory states of preeclampsia.
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29
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Liang D, Lin Q, Zhu Q, Zhou X, Fang Y, Wang L, Xiang G, Zheng KI, Huang W, Shan P. Short-Term Postoperative Use of Rivaroxaban to Prevent Radial Artery Occlusion After Transradial Coronary Procedure: The RESTORE Randomized Trial. Circ Cardiovasc Interv 2022; 15:e011555. [PMID: 35317614 DOI: 10.1161/circinterventions.121.011555] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Adequate procedural anticoagulation is crucial for radial artery occlusion (RAO) prevention in patients undergoing transradial access coronary catheterization, although the effect of postprocedural anticoagulation lack thorough investigation. The aim of this study was to evaluate the clinical value of short-term postoperative anticoagulation with rivaroxaban for 24 hours and 1-month RAO prevention in patients who received transradial coronary procedures. METHODS A total of 382 patients were randomized to receive either placebo (control group) or rivaroxaban 10 mg once daily for a period of 7 days (rivaroxaban group) to evaluate the effect of the rivaroxaban in the prevention of 24 hours and 1-month RAO assessed by Doppler ultrasound. RESULTS There was no significant difference in the incidence of 24-hour RAO (8.9% versus 11.5%; P=0.398) between the rivaroxaban group and control group (odds ratio, 0.75 [95% CI, 0.39-1.46]; P=0.399). In contrast, the 1-month RAO (3.8% versus 11.5%; P=0.011) was significantly reduced in patients who received rivaroxaban as compared with those who did placebo (odds ratio, 0.22 [95% CI, 0.08-0.65]; P=0.006). For patients with 24-hour RAO, the rivaroxaban group was associated with higher recanalization rate of the radial artery (69.2% versus 30.0%; P=0.027) compared with the control group. No significant differences can be observed between the 2 groups for access-site complications or bleeding events. CONCLUSIONS Short-term postoperative anticoagulation with rivaroxaban did not reduce the rate of 24-hour RAO but improved 1-month RAO, because of higher recanalization of the radial artery. However, larger clinical trials are needed to prove our results. REGISTRATION URL: https://www.chictr.org.cn; Unique identifier: ChiCTR1900026974.
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Affiliation(s)
- Dongjie Liang
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Qingcheng Lin
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Qianli Zhu
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Xiaodong Zhou
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Ying Fang
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Liangguo Wang
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Guangze Xiang
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Kenneth I Zheng
- NAFLD Research Center, Department of Hepatology (K.I.Z.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Weijian Huang
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Peiren Shan
- Department of Cardiology, The Key Laboratory of Cardiovascular Disease of Wenzhou (D.L., Q.L., Q.Z., X.Z., Y.F., L.W., G.X., W.H., P.S.), the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
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Barry M, Pati S. Targeting repair of the vascular endothelium and glycocalyx after traumatic injury with plasma and platelet resuscitation. Matrix Biol Plus 2022; 14:100107. [PMID: 35392184 PMCID: PMC8981767 DOI: 10.1016/j.mbplus.2022.100107] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/10/2022] [Accepted: 03/10/2022] [Indexed: 02/06/2023] Open
Abstract
Endothelial glycocalyx shedding is a key instigator of the endotheliopathy of trauma. Plasma and platelet transfusions preserve vascular integrity in pre-clinical models. However, platelets may be less effective than plasma in preserving the glycocalyx.
Severely injured patients with hemorrhagic shock can develop endothelial dysfunction, systemic inflammation, and coagulation disturbances collectively known as the endotheliopathy of trauma (EOT). Shedding of the endothelial glycocalyx occurs early after injury, contributes to breakdown of the vascular barrier, and plays a critical role in the pathogenesis of multiple organ dysfunction, leading to poor outcomes in trauma patients. In this review we discuss (i) the pathophysiology of endothelial glycocalyx and vascular barrier breakdown following hemorrhagic shock and trauma, and (ii) the role of plasma and platelet transfusion in maintaining the glycocalyx and vascular endothelial integrity.
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Affiliation(s)
- Mark Barry
- University of California, San Francisco, Department of Surgery. 513 Parnassus Ave., San Francisco, CA 94143, United States
- Corresponding author.
| | - Shibani Pati
- University of California, San Francisco, Department of Surgery. 513 Parnassus Ave., San Francisco, CA 94143, United States
- University of California, San Francisco, Department of Laboratory Medicine. 513 Parnassus Ave., San Francisco, CA 94143, United States
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31
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Meng Z, Zhang Y, Zhou X, Ji J, Liu Z. Nanovaccines with cell-derived components for cancer immunotherapy. Adv Drug Deliv Rev 2022; 182:114107. [PMID: 34995678 DOI: 10.1016/j.addr.2021.114107] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 10/16/2021] [Accepted: 12/29/2021] [Indexed: 12/13/2022]
Abstract
Cancer nanovaccines as one of immunotherapeutic approaches are able to attack tumors by stimulating tumor-specific immunological responses. However, there still exist multiple challenges to be tackled for cancer nanovaccines to evoke potent antitumor immunity. Particularly, the administration of exogenous materials may cause the off-target immunotherapy responses. In recent years, biomimetic nanovaccines by using cell lysates, cell-derived nanovesicles, or extracted cell membranes as the functional components have received extensive attention. Such nanovaccines based on cell-derived components would show many unique advantages including inherent biocompatibility and the ability to trigger immune responses against a range of tumor-associated antigens. In this review article, we will introduce the recent research progresses of those cell-derived biomimetic nanovaccines for cancer immunotherapy, and discuss the perspectives and challenges associated with the future clinical translation of these emerging vaccine platforms.
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32
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Xin Y, Peng J, Hong YY, Chao QC, Na S, Pan S, Zhao LF. Advances in research on the effects of platelet activation in acute lung injury (Review). Biomed Rep 2022; 16:17. [PMID: 35154701 PMCID: PMC8814673 DOI: 10.3892/br.2022.1500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/05/2022] [Indexed: 11/17/2022] Open
Abstract
Acute lung injury (ALI) is an acute hypoxic respiratory insufficiency or failure caused by various factors inside and outside the lungs. ALI is associated with high morbidity and a poor prognosis in hospitalized patients. The lungs serve as a reservoir for platelet precursor megakaryocytes and are closely associated with platelets. Platelets not only play a central role in hemostasis, coagulation and wound healing, but can also act as inflammatory cells capable of stimulating non-hemostatic immune functions under inflammatory conditions, participating in the progression of various inflammatory diseases, and can result in tissue damage. Therefore, it was speculated that platelets may play an important role in the pathogenesis of ALI. In this review, the latest research progress on secretion of bioactive mediators from platelets, platelet activation-related signaling pathways, and the direct contact reactions between platelets and neutrophils with endothelial cells that result in ALI are described, providing evidence to support the importance of the consideration of platelets in the search for ALI interventional targets.
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Affiliation(s)
- Yuan Xin
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Jiang Peng
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Yu Yun Hong
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Qiao Cong Chao
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Su Na
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Sun Pan
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
| | - Lin Fang Zhao
- Institute of Blood Transfusion, Chinese Academy of Medical Science and Peking Union Medical College, Chengdu, Sichuan 610052, P.R. China
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Wiebe F, Handtke S, Wesche J, Schnarre A, Palankar R, Wolff M, Jahn K, Voß F, Weißmüller S, Schüttrumpf J, Greinacher A, Hammerschmidt S. Polyvalent immunoglobulin preparations inhibit pneumolysin-induced platelet destruction. Thromb Haemost 2021; 122:1147-1158. [PMID: 34918314 PMCID: PMC9385248 DOI: 10.1055/a-1723-1880] [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] [Indexed: 11/30/2022]
Abstract
Platelets play an important role in the development and progression of respiratory distress. Functional platelets are known to seal inflammatory endothelial gaps and loss of platelet function has been shown to result in loss of integrity of pulmonary vessels. This leads to fluid accumulation in the pulmonary interstitium, eventually resulting in respiratory distress.
Streptococcus pneumoniae
is one of the major pathogens causing community-acquired pneumonia. Previously, we have shown that its major toxin pneumolysin forms pores in platelet membranes and renders them nonfunctional. In vitro, this process was inhibited by polyvalent intravenous immunoglobulins (IVIGs). In this study, we compared the efficacy of a standard IVIG preparation (IVIG, 98% immunoglobulin G [IgG]; Privigen, CSL Behring, United States) and an IgM/IgA-enriched immunoglobulin preparation (21% IgA, 23% IgM, 56% IgG; trimodulin, Biotest AG, Germany) to inhibit pneumolysin-induced platelet destruction. Platelet destruction and functionality were assessed by flow cytometry, intracellular calcium release, aggregometry, platelet viability, transwell, and flow chamber assays. Overall, both immunoglobulin preparations efficiently inhibited pneumolysin-induced platelet destruction. The capacity to antagonize pneumolysin mainly depended on the final IgG content. As both polyvalent immunoglobulin preparations efficiently prevent pneumolysin-induced platelet destruction and maintain platelet function in vitro, they represent promising candidates for clinical studies on supportive treatment of pneumococcal pneumonia to reduce progression of respiratory distress.
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Affiliation(s)
- Friederike Wiebe
- Department of Transfusion Medicine, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Stefan Handtke
- Department of Transfusion Medicine, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Jan Wesche
- Department of Transfusion Medicine, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Annabel Schnarre
- Department of Transfusion Medicine, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Raghavendra Palankar
- Department of Transfusion Medicine, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Martina Wolff
- Department of Transfusion Medicine, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Kristin Jahn
- Department of Molecular Genetics and Infection Biology, Universität Greifswald Mathematisch-Naturwissenschaftliche Fakultät, Greifswald, Germany
| | - Franziska Voß
- Department of Molecular Genetics and Infection Biology, Universität Greifswald Mathematisch-Naturwissenschaftliche Fakultät, Greifswald, Germany
| | | | - Jörg Schüttrumpf
- Department of Research & Development, Biotest AG, Dreieich, Germany
| | - Andreas Greinacher
- Department of Transfusion Medicine, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Sven Hammerschmidt
- Department of Molecular Genetics and Infection Biology, Universität Greifswald Mathematisch-Naturwissenschaftliche Fakultät, Greifswald, Germany
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34
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Efat A, Shoeib S, Nazir A, Abdelmohsen E, Dawod A, Bedair HM, Elgheriany W. Endothelial Activation and Immune Thrombocytopenia: An Engagement Waiting for Consolidation. Clin Appl Thromb Hemost 2021; 27:10760296211054514. [PMID: 34806423 PMCID: PMC8646185 DOI: 10.1177/10760296211054514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Immune thrombocytopenia (ITP) appears to be a heterogeneous disease. In some patients, autoimmunity may be associated with an inflammatory process, and in other patients, low platelets may interfere with other aspects of the coagulation system. Either may predispose to thrombosis or bleeding. Further investigation of the interactions of platelets, with inflammatory cytokines and endothelial biomarkers, may help us to better understand the disease, and to recognize those patients at risk of bleeding, or conversely thrombosis. The aim of this work is to estimate von Willebrand factor (vWF) and vascular cellular adhesion molecule (V-CAM) serum levels in adult immune thrombocytopenic patients (ITP) and to decipher their possible clinical correlates. Eighty adults (≥ 18 years) were enrolled in the study; naive newly diagnosed 40 patients with primary ITP (according to the ASH 2019) and 40 sex and age-matched healthy controls, all groups are subjected for complete blood count (CBC), liver, and renal function tests, ESR, CRP, V-CAM, and VWF-Ag by enzyme-linked immunosorbent assay (ELISA). There was a highly statistically significant difference between case and control as regards to the mean level of VWF-Ag and V-CAM. vWF and V-CAM could serve as biomarkers for endothelial alterations and should be investigated as a predictor of thrombocytopenic bleeding and tailor patient management accordingly.
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Affiliation(s)
- Alaa Efat
- 68872Menoufia University, Shebin Alkom, Egypt
| | | | - Aida Nazir
- 68789Alexandria University, Alexandria, Egypt
| | | | | | - Hanan M Bedair
- 68873National Liver Institute, Menoufia University, Egypt
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35
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Locatelli L, Colciago A, Castiglioni S, Maier JA. Platelets in Wound Healing: What Happens in Space? Front Bioeng Biotechnol 2021; 9:716184. [PMID: 34760877 PMCID: PMC8572965 DOI: 10.3389/fbioe.2021.716184] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 10/11/2021] [Indexed: 12/21/2022] Open
Abstract
Beyond their fundamental role in hemostasis, platelets importantly contribute to other processes aimed at maintaining homeostasis. Indeed, platelets are a natural source of growth factors and also release many other substances-such as fibronectin, vitronectin, sphingosine 1-phosphate-that are important in maintaining healthy tissues, and ensuring regeneration and repair. Despite rare thrombotic events have been documented in astronauts, some in vivo and in vitro studies demonstrate that microgravity affects platelet's number and function, thus increasing the risk of hemorrhages and contributing to retard wound healing. Here we provide an overview about events linking platelets to the impairment of wound healing in space, also considering, besides weightlessness, exposure to radiation and psychological stress. In the end we discuss the possibility of utilizing platelet rich plasma as a tool to treat skin injuries eventually occurring during space missions.
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Affiliation(s)
- Laura Locatelli
- Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, Milan, Italy
| | - Alessandra Colciago
- Department of Pharmacological and Biomolecular Sciences, Università di Milano, Milan, Italy
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, Milan, Italy
| | - Jeanette A Maier
- Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, Milan, Italy.,Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa), Università di Milano, Milan, Italy
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36
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Smethurst PA, McAndrew M, Proffitt S, Procter S, Davies J, New HV, Stanworth SJ, Doughty H, Cardigan R. Evaluating apheresis platelets at reduced dose as a contingency measure for extreme shortages. Transfusion 2021; 62:173-182. [PMID: 34757639 DOI: 10.1111/trf.16723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The COVID19 pandemic highlights the need for contingency planning in the event of blood shortages. To increase platelet supply, we assessed the operational impact and effect on platelet quality of splitting units prior to storage. STUDY DESIGN AND METHODS Using production figures, we modeled the impact on unit numbers, platelet counts, and volumes of splitting only apheresis double donations into three units (yielding ⅔ doses), or all standard dose units in half. To assess quality, eight pools of three ABO/Rh-matched apheresis (Trima Accel) double donations in plasma were split to ⅔ and ½ volumes in both Terumo and Fresenius storage bags. These were irradiated and subject to maximal permitted periods of nonagitation (3 × 8 h) before comparing platelet quality markers (including pH, CD62P expression) to Day 9 of storage. RESULTS Splitting all double donations into three predicted inventory expansion of 23% overall whereas halving all standard dose units clearly doubles stock. In our study, ⅔ and ½ doses contained 153 ± 15 × 109 (~138 ml) and 113 ± 11 × 109 (~102 ml) platelets respectively. Following storage, higher pH was observed in ⅔ than in ½ doses and in Terumo compared to Fresenius bags. The higher pH was reflected in better quality markers, including lower CD62P expression. Despite the differences, on Day 8 (of pH monitoring at expiry) all ⅔ doses and most ½ doses were ≥pH 6.4. CONCLUSION A strategy to split apheresis platelets in plasma to lower doses is feasible, maintains acceptable platelet quality, and should be considered by blood services in response to extreme shortages.
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Affiliation(s)
- Peter A Smethurst
- Component Development Laboratory, NHS Blood and Transplant, Cambridge, UK
| | - Margaret McAndrew
- Component Development Laboratory, NHS Blood and Transplant, Cambridge, UK
| | - Susan Proffitt
- Component Development Laboratory, NHS Blood and Transplant, Cambridge, UK
| | - Simon Procter
- Quality Monitoring, NHS Blood and Transplant, London, UK
| | - Jane Davies
- Technical & Scientific Development, NHS Blood and Transplant, London, UK
| | - Helen V New
- Centre for Haematology, Imperial College London, London, UK.,Clinical Services Directorate, NHS Blood and Transplant, London, UK
| | - Simon J Stanworth
- Clinical Services Directorate, NHS Blood and Transplant, London, UK.,Radcliffe Department of Medicine, University of Oxford, and NIHR Oxford Biomedical Research Centre, Oxford, UK.,Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Heidi Doughty
- Clinical Services Directorate, NHS Blood and Transplant, London, UK
| | - Rebecca Cardigan
- Component Development Laboratory, NHS Blood and Transplant, Cambridge, UK.,Department of Haematology, University of Cambridge, Cambridge, UK
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37
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Zhang Y, He J. Tumor vasculature-targeting nanomedicines. Acta Biomater 2021; 134:1-12. [PMID: 34271167 DOI: 10.1016/j.actbio.2021.07.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 12/15/2022]
Abstract
Uncontrolled tumor growth and subsequent distant metastasis are highly dependent on an adequate nutrient supply from tumor blood vessels, which have relatively different pathophysiological characteristics from those of normal vasculature. Obviously, strategies targeting tumor vasculature, such as anti-angiogenic drugs and vascular disrupting agents, are attractive methods for cancer therapy. However, the off-target effects and high dose administration of these drug regimens critically restrict their clinical applications. In recent years, nanomedicines focused on tumor vasculature have been shown to be superior to traditional therapeutic methods and do not induce side effects. This review will first highlight the recent development of tumor vasculature-targeting nanomedicines from the following four aspects: 1) angiogenesis-inhibiting nanomedicines (AINs); 2) vasculature-disrupting nanomedicines (VDNs); 3) vasculature infarction nanomedicines (VINs); and 4) vasculature-regulating nanomedicines (VRNs). Furthermore, the design principles, limitations, and future directions are also discussed. STATEMENT OF SIGNIFICANCE: Based on the essential roles of tumor blood vessels, the therapeutic strategies targeting tumor vasculature have exhibited good clinical therapeutic outcomes. However, poor patient adherence to free drug administration limits their clinical usage. Nanomedicines have great potential to overcome the abovementioned obstacle. This review summarizes the tumor-vasculature targeting nanomedicines from four aspects: 1) angiogenesis-inhibiting nanomedicines (AINs); 2) vasculature-disrupting nanomedicines (VDNs); 3) vasculature infarction nanomedicines (VINs); and 4) vasculature regulating nanomedicines (VRNs). In addition, this review provides perspectives on this research field.
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Affiliation(s)
- Ying Zhang
- Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, 110022, PR China
| | - Jingni He
- Department of General Surgery, Shengjing Hospital of China Medical University, No. 39 Huaxiang Road, Tiexi District, Shenyang 110022, PR China.
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38
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Li J, Yu D, Song Y, Cheang I, Wang X. Association Between Postoperative Thrombocytopenia and Outcomes After Coronary Artery Bypass Grafting Surgery. Front Surg 2021; 8:747986. [PMID: 34604298 PMCID: PMC8484630 DOI: 10.3389/fsurg.2021.747986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 08/25/2021] [Indexed: 11/13/2022] Open
Abstract
Objectives: The effect of postoperative thrombocytopenia on adverse events among coronary artery bypass graft (CABG) patients remains unclear. This study aims to investigate the association between postoperative thrombocytopenia and perioperative outcomes of CABG. Methods: This is a retrospective study with MIMIC-III (Medical Information Mart for Intensive Care III) database. Adult patients who underwent CABG were included to analyze the impact of thrombocytopenia in patients' outcomes. Postoperative thrombocytopenia was defined as a platelet count <100 × 109/L on the first day after CABG surgery. A multivariable logistic regression analysis was utilized to adjust the effect of thrombocytopenia on outcomes for baseline and covariates, and to determine the association with outcomes. Results: A total of 4,915 patients were included, and postoperative thrombocytopenia occurred in 696 (14.2%) patients. Postoperative thrombocytopenia was not associated with increased 28-day mortality (OR 0.75; 95% CI 0.33-1.72; P = 0.496) or in-hospital mortality (OR 0.75; 95% CI 0.34-1.63; P = 0.463) after adjusting for confounders. Regarding the secondary outcomes, it was associated with a higher risk of a prolonged stay in the intensive care unit (OR 1.53; 95% CI 1.18-1.97; P = 0.001), prolonged hospital stays (OR 1.58; 95% CI 1.21-2.06; P = 0.001), prolonged mechanical ventilation time (OR 1.67; 95% CI 1.14-2.44; P = 0.009), and a trend toward increased occurrence of massive bleeding (OR 1.41; 95% CI 1.00-2.01; P = 0.054). There was no significant association between an increased risk of prolonged vasopressor use and the continuous renal replacement therapy rate. Conclusions: Postoperative thrombocytopenia was associated with prolonged ICU and hospital stays but not with increased perioperative mortality among CABG patients.
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Affiliation(s)
- Jinghang Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Dongmin Yu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yuanyuan Song
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Iokfai Cheang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaowei Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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39
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Stratopoulou CA, Camboni A, Donnez J, Dolmans MM. Identifying Common Pathogenic Features in Deep Endometriotic Nodules and Uterine Adenomyosis. J Clin Med 2021; 10:4585. [PMID: 34640603 PMCID: PMC8509556 DOI: 10.3390/jcm10194585] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023] Open
Abstract
Increasing imaging data point to a link between deep endometriotic nodules (DENs) and uterine adenomyosis (AD). The study aimed to investigate this link at the histological level and detect potential features shared by the two diseases. We collected formalin-fixed paraffin-embedded tissue (endometrium and lesions) from women with DENs of the rectovaginal septum (n = 13), AD (n = 14), and control subjects (n = 14). Immunohistochemical analyses of CD41 and CD68 were conducted to explore the roles of platelets and macrophages, respectively. Picrosirius red staining was carried out to gather evidence of fibrosis. Vascular endothelial growth factor (VEGF) was assessed, and total numbers of CD31-positive vessels were calculated to investigate the mechanism governing angiogenesis. Double immunohistochemistry for CD31 and alpha smooth muscle actin (αSMA) was performed to discern stable vessels. Platelet aggregation was significantly decreased in both types of lesions compared to their corresponding eutopic endometrium and healthy controls. Macrophage numbers were higher in both lesions than in their corresponding endometrium and healthy subjects. Significantly higher rates of collagen accumulation were detected in DENs and AD lesions compared to their corresponding eutopic and healthy endometrium. VEGF expression was downregulated in the stromal compartment of AD lesions compared to the healthy endometrium. The total number of vessels per area was significantly higher in DENs and AD lesions than in the healthy endometrium. Rates of αSMA-surrounded vessels were decreased in DENs and AD lesions compared to their corresponding eutopic and healthy endometrium. We report common pathogenic mechanisms between DENs and AD, namely excessive macrophage accumulation, fibrosis, and irregular angiogenesis. Our results further support the notion of DENs and AD being linked at the histological level.
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Affiliation(s)
- Christina Anna Stratopoulou
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium; (C.A.S.); (A.C.)
| | - Alessandra Camboni
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium; (C.A.S.); (A.C.)
- Anatomopathology Department, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Jacques Donnez
- Société de Recherche pour l’Infertilité, 1150 Brussels, Belgium;
- Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Marie-Madeleine Dolmans
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium; (C.A.S.); (A.C.)
- Gynecology Department, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
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40
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Bélanger JC, Bouchard V, Le Blanc J, Starnino L, Welman M, Chabot-Blanchet M, Busseuil D, Chertkow H, D'Antono B, Lordkipanidzé M. Brain-Derived Neurotrophic Factor Mitigates the Association Between Platelet Dysfunction and Cognitive Impairment. Front Cardiovasc Med 2021; 8:739045. [PMID: 34557534 PMCID: PMC8452906 DOI: 10.3389/fcvm.2021.739045] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/13/2021] [Indexed: 01/07/2023] Open
Abstract
Background: Platelet hyperactivity is deleterious in coronary artery disease (CAD), requiring lifelong antiplatelet therapy, and is associated with worse cognitive outcomes. Upon activation, platelets release Brain-Derived Neurotrophic Factor (BDNF), a neurotrophin protective against cognitive decline. Given these apparently opposing effects of platelet activation on cognitive health, we investigated whether BDNF levels intercede in the relationship between platelet activation and cognitive function; and whether this relationship is moderated by the presence of CAD. Methods: In this cross-sectional study, 1,280 participants with (n = 673) and without CAD (n = 607) completed the Montreal Cognitive Assessment (MoCA). Plasma BDNF and soluble P-selectin (a marker of platelet activity) levels were assessed using multiplex flow cytometry. Results: In a mediation model, platelet activity was correlated with higher plasma BDNF concentrations (b = 0.53, p < 0.0001). The relationship between sP-selectin and BDNF concentrations was stronger for individuals without CAD (b = 0.71, p < 0.0001) than for CAD participants (b = 0.43, p < 0.0001; pinteraction <0.0001). Higher BDNF concentrations were associated with higher MoCA scores (b = 0.26, p = 0.03). The overall effect of platelet activity on cognitive performance was non-significant (total effect: b = −0.12, p = 0.13), and became significant when accounting for BDNF as a mediating factor (direct effect: b = −0.26, p = 0.01). This resulted in a positive indirect effect of platelet activity (via BDNF) on MoCA scores (b = 0.14, CI 95% 0.02–0.30), that was smaller in CAD participants than in non-CAD participants [Δ −0.07 (95% CI −0.14 to −0.01)]. Conclusions: BDNF released from activated platelets could be a mitigating factor in a negative association between platelet activity and cognitive function.
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Affiliation(s)
- Jean-Christophe Bélanger
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Véronique Bouchard
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Psychology Department, Faculty of Human Sciences, Université du Québec à Montréal, Montreal, QC, Canada
| | - Jessica Le Blanc
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Louisia Starnino
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Psychology Department, Faculty of Human Sciences, Université du Québec à Montréal, Montreal, QC, Canada
| | - Mélanie Welman
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | | | - David Busseuil
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | - Howard Chertkow
- Baycrest Health Sciences, Rotman Research Institute, University of Toronto, Toronto, ON, Canada.,Department of Medicine (Neurology), University of Toronto, Toronto, ON, Canada
| | - Bianca D'Antono
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Psychology Department, Faculty of Arts and Sciences, Université de Montréal, Montreal, QC, Canada
| | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
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41
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Parra-Izquierdo I, Lakshmanan HHS, Melrose AR, Pang J, Zheng TJ, Jordan KR, Reitsma SE, McCarty OJT, Aslan JE. The Toll-Like Receptor 2 Ligand Pam2CSK4 Activates Platelet Nuclear Factor-κB and Bruton's Tyrosine Kinase Signaling to Promote Platelet-Endothelial Cell Interactions. Front Immunol 2021; 12:729951. [PMID: 34527000 PMCID: PMC8435771 DOI: 10.3389/fimmu.2021.729951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/12/2021] [Indexed: 12/24/2022] Open
Abstract
Circulating platelets establish a variety of immunological programs and orchestrate inflammatory responses at the endothelium. Platelets express the innate immunity family of Toll-like receptors (TLRs). While TLR2/TLR1 ligands are known to activate platelets, the effects of TLR2/TLR6 ligands on platelet function remain unclear. Here, we aim to determine whether the TLR2/TLR6 agonists Pam2CSK4 and FSL-1 activate human platelets. In addition, human umbilical vein endothelial cells (HUVECs) and platelets were co-cultured to analyze the role of platelet TLR2/TLR6 on inflammation and adhesion to endothelial cells. Pam2CSK4, but not FSL-1, induced platelet granule secretion and integrin αIIbβ3 activation in a concentration-dependent manner. Moreover, Pam2CSK4 promoted platelet aggregation and increased platelet adhesion to collagen-coated surfaces. Mechanistic studies with blocking antibodies and pharmacologic inhibitors demonstrated that the TLR2/Nuclear factor-κB axis, Bruton’s-tyrosine kinase, and a secondary ADP feedback loop are involved in Pam2CSK4-induced platelet functional responses. Interestingly, Pam2CSK4 showed cooperation with immunoreceptor tyrosine-based activation motif (ITAM)-mediated signaling to enhance platelet activation. Finally, the presence of platelets increased inflammatory responses in HUVECs treated with Pam2CSK4, and platelets challenged with Pam2CSK4 showed increased adhesion to HUVECs under static and physiologically relevant flow conditions. Herein, we define a functional role for platelet TLR2-mediated signaling, which may represent a druggable target to dampen excessive platelet activation in thrombo-inflammatory diseases.
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Affiliation(s)
- Iván Parra-Izquierdo
- Knight Cardiovascular Institute and Division of Cardiology, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Hari Hara Sudhan Lakshmanan
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Alexander R Melrose
- Knight Cardiovascular Institute and Division of Cardiology, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Jiaqing Pang
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Tony J Zheng
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Kelley R Jordan
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Stéphanie E Reitsma
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Owen J T McCarty
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Division of Hematology and Medical Oncology, School of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Joseph E Aslan
- Knight Cardiovascular Institute and Division of Cardiology, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Department of Chemical Physiology and Biochemistry, School of Medicine, Oregon Health & Science University, Portland, OR, United States
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Specific Blood Cells Derived from Pluripotent Stem Cells: An Emerging Field with Great Potential in Clinical Cell Therapy. Stem Cells Int 2021; 2021:9919422. [PMID: 34434242 PMCID: PMC8380505 DOI: 10.1155/2021/9919422] [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: 03/21/2021] [Revised: 06/06/2021] [Accepted: 08/02/2021] [Indexed: 11/18/2022] Open
Abstract
Widely known for self-renewal and multilineage differentiation, stem cells can be differentiated into all specialized tissues and cells in the body. In the past few years, a number of researchers have focused on deriving hematopoietic stem cells (HSCs) from pluripotent stem cells (PSCs) as alternative sources for clinic. Existing findings demonstrated that it is feasible to obtain HSCs and certain mature blood lineages from PSCs, except for several issues to be addressed. This short review outlines the technologies used for hematopoietic differentiation in recent years. In addition, the therapeutic value of PSCs as a potential source of various blood cells is also discussed as well as its challenges and directions in future clinical applications.
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Hritzo B, Legesse B, Ward JM, Kaur A, Holmes-Hampton GP, Moroni M. Investigating the Multi-Faceted Nature of Radiation-Induced Coagulopathies in a Göttingen Minipig Model of Hematopoietic Acute Radiation Syndrome. Radiat Res 2021; 196:156-174. [PMID: 34019667 DOI: 10.1667/rade-20-00073.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/28/2021] [Indexed: 11/03/2022]
Abstract
Coagulopathies are well documented after acute radiation exposure at hematopoietic doses, and radiation-induced bleeding is notably one of the two main causes of mortality in the hematopoietic acute radiation syndrome. Despite this, understanding of the mechanisms by which radiation alters hemostasis and induces bleeding is still lacking. Here, male Göttingen minipigs received hematopoietic doses of 60Co gamma irradiation (total body) and coagulopathies were characterized by assessing bleeding, blood cytopenia, fibrin deposition, changes in hemostatic properties, coagulant/anticoagulant enzyme levels, and markers of inflammation, endothelial dysfunction, and barrier integrity to understand if a relationship exists between bleeding, hemostatic defects, bone marrow aplasia, inflammation, endothelial dysfunction and loss of barrier integrity. Acute radiation exposure induced coagulopathies in the Göttingen minipig model of hematopoietic acute radiation syndrome; instances of bleeding were not dependent upon thrombocytopenia. Neutropenia, alterations in hemostatic parameters and damage to the glycocalyx occurred in all animals irrespective of occurrence of bleeding. Radiation-induced bleeding was concurrent with simultaneous thrombocytopenia, anemia, neutropenia, inflammation, increased heart rate, decreased nitric oxide bioavailability and endothelial dysfunction; bleeding was not observed with the sole occurrence of a single aforementioned parameter in the absence of the others. Alteration of barrier function or clotting proteins was not observed in all cases of bleeding. Additionally, fibrin deposition was observed in the heart and lungs of decedent animals but no evidence of DIC was noted, suggesting a unique pathophysiology of radiation-induced coagulopathies. These findings suggest radiation-induced coagulopathies are the result of simultaneous damage to several key organs and biological functions, including the immune system, the inflammatory response, the bone marrow and the cardiovasculature.
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Affiliation(s)
- Bernadette Hritzo
- Scientific Research Department, Armed Forces Radiobiology Research Institute, Bethesda, Maryland
| | - Betre Legesse
- Scientific Research Department, Armed Forces Radiobiology Research Institute, Bethesda, Maryland
| | | | - Amandeep Kaur
- Scientific Research Department, Armed Forces Radiobiology Research Institute, Bethesda, Maryland
| | - Gregory P Holmes-Hampton
- Scientific Research Department, Armed Forces Radiobiology Research Institute, Bethesda, Maryland
| | - Maria Moroni
- Scientific Research Department, Armed Forces Radiobiology Research Institute, Bethesda, Maryland
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Ruane-O'Hora T, Markos F. Platelets Do Not Alter Flow-Mediated Dilation or Arterial Conduction in vivo. J Vasc Res 2021; 58:231-236. [PMID: 34010839 DOI: 10.1159/000516045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/22/2021] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to investigate whether platelets contribute to shear stress and vascular conductance in the iliac vascular bed in vivo. Flow-mediated dilation of pig iliac was induced by downstream injection of acetylcholine (50 μg), and separately, conductance (ΔF/ΔP) was calculated. This was carried out before and after removal of 1 L of arterial blood in 240 mL increments, and each 240 mL was spun in a centrifuge (1,500 rcf for 7 min); platelet-rich plasma was replaced with equal volume of heparinised saline and reinjected. The circulating platelet count fell from 369 × 109/L (n = 5) to 165 × 109/L (p = 0.01; n = 4; Student's unpaired t). An increase in flow led to an increase in the iliac diameter by 0.49 ± 0.03 mm (mean ± SEM) before platelet reduction and 0.55 ± 0.05 mm after (p = 0.36, Student's paired t, n = 5); the change in arterial conductance was also not significantly affected by platelet reduction, control: 1.44 ± 0.34 mL/min/mm Hg, after platelet reduction: 1.39 ± 0.04 mm (p = 0.55, Student's paired t, n = 4). Therefore, platelets do not contribute to shear stress or conductance in vivo.
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Affiliation(s)
- Therese Ruane-O'Hora
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Farouk Markos
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
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Pannone G, Caponio VCA, De Stefano IS, Ramunno MA, Meccariello M, Agostinone A, Pedicillo MC, Troiano G, Zhurakivska K, Cassano T, Bizzoca ME, Papagerakis S, Buonaguro FM, Advani S, Muzio LL. Lung histopathological findings in COVID-19 disease - a systematic review. Infect Agent Cancer 2021; 16:34. [PMID: 34001199 PMCID: PMC8127295 DOI: 10.1186/s13027-021-00369-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/23/2021] [Indexed: 02/08/2023] Open
Abstract
Since December 2019, the global burden of the COVID-19 pandemic has increased rapidly and has impacted nearly every country in the world, affecting those who are elderly or with underlying comorbidities or immunocompromised states. Aim of this systematic review is to summarize lung histopathological characteristics of COVID-19, not only for diagnostic purpose but also to evaluate changes that can reflect pathophysiological pathways that can inform clinicians of useful treatment strategies. We identified following histopathological changes among our patients:: hyaline membranes; endothelial cells/ interstitial cells involvement; alveolar cells, type I pneumocytes/ type II pneumocytes involvement; interstitial and/ or alveolar edema; evidence of hemorrhage, of inflammatory cells, evidence of microthrombi; evidence of fibrin deposition and of viral infection in the tissue samples.The scenario with proliferative cell desquamation is typical of Acute Respiratory Distress Syndrome (ARDS) that can be classified as diffuse alveolar damage (DAD) and not DAD-ARDS. The proposed pathological mechanism concerns the role of both innate and adaptive components of the immune system. COVID-19 lethal cases present themselves as a heterogeneous disease, characterized by the different simultaneous presence of different histological findings, which reflect histological phases with corresponding different pathological pathways (epithelial, vascular and fibrotic changes), in the same patient.
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Affiliation(s)
- Giuseppe Pannone
- Anatomic Pathology Unit, Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | | | - Ilenia Sara De Stefano
- Anatomic Pathology Unit, Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Maria Antonietta Ramunno
- Anatomic Pathology Unit, Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Mario Meccariello
- Anatomic Pathology Unit, Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Alessio Agostinone
- Anatomic Pathology Unit, Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Maria Carmela Pedicillo
- Anatomic Pathology Unit, Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Giuseppe Troiano
- Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Khrystyna Zhurakivska
- Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Tommaso Cassano
- Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Maria Eleonora Bizzoca
- Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Silvana Papagerakis
- Department of Surgery, College of Medicine, Health Sciences Center, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Franco Maria Buonaguro
- Molecular Biology and Viral Oncology Unit Istituto Nazionale, Tumori IRCCS "Fondazione Pascale", 80131, Naples, Italy
| | - Shailesh Advani
- Georgetown University School of Medicine, Georgetown University, Washington, DC, USA
| | - Lorenzo Lo Muzio
- Department of Clinic and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
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Liu Y, Zhou J, Li Q, Li L, Jia Y, Geng F, Zhou J, Yin T. Tumor microenvironment remodeling-based penetration strategies to amplify nanodrug accessibility to tumor parenchyma. Adv Drug Deliv Rev 2021; 172:80-103. [PMID: 33705874 DOI: 10.1016/j.addr.2021.02.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/05/2021] [Accepted: 02/23/2021] [Indexed: 12/12/2022]
Abstract
Remarkable advances in nano delivery systems have provided new hope for tumor prevention, diagnosis and treatment. However, only limited clinical therapeutic effects against solid tumors were achieved. One of the main reasons is the presence of abundant physiological and pathological barriers in vivo that impair tumoral penetration and distribution of the nanodrugs. These barriers are related to the components of tumor microenvironment (TME) including abnormal tumor vasculature, rich composition of the extracellular matrix (ECM), and abundant stroma cells. Herein, we review the advanced strategies of TME remodeling to overcome these biological obstacles against nanodrug delivery. This review aims to offer a perspective guideline for the implementation of promising approaches to facilitate intratumoral permeation of nanodrugs through alleviation of biological barriers. At the same time, we analyze the advantages and disadvantages of the corresponding methods and put forward possible directions for the future researches.
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Affiliation(s)
- Yanhong Liu
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Jiyuan Zhou
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Qiang Li
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Lingchao Li
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Yue Jia
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Feiyang Geng
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Jianping Zhou
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
| | - Tingjie Yin
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
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Xu Y, Liu J, Liu Z, Chen G, Li X, Ren H. Damaging Tumor Vessels with an Ultrasound-Triggered NO Release Nanosystem to Enhance Drug Accumulation and T Cells Infiltration. Int J Nanomedicine 2021; 16:2597-2613. [PMID: 33833514 PMCID: PMC8021257 DOI: 10.2147/ijn.s295445] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/16/2021] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Limited by tumor vascular barriers, restricted intratumoural T cell infiltration and nanoparticles accumulation remain major bottlenecks for anticancer therapy. Platelets are now known to maintain tumor vascular integrity. Therefore, inhibition of tumor-associated platelets may be an effective method to increase T cell infiltration and drug accumulation at tumor sites. Herein, we designed an ultrasound-responsive nitric oxide (NO) release nanosystem, SNO-HSA-PTX, which can release NO in response to ultrasound (US) irradiation, thereby inhibiting platelet function and opening the tumor vascular barrier, promoting drug accumulation and T cell infiltration. METHODS We evaluated the ability of SNO-HSA-PTX to release NO in response to US irradiation. We also tested the effect of SNO-HSA-PTX on platelet function. Plenty of studies including cytotoxicity, pharmacokinetics study, biodistribution, blood perfusion, T cell infiltration, in vivo antitumor efficacy and safety assessment were conducted to investigate the antitumor effect of SNO-HSA-PTX. RESULTS SNO-HSA-PTX with US irradiation inhibited tumor-associated platelets activation and induced openings in the tumor vascular barriers, which promoted the accumulation of SNO-HSA-PTX nanoparticles to the tumor sites. Meanwhile, the damaged vascular barriers allowed oxygen-carrying hemoglobin to infiltrate tumor regions, alleviating hypoxia of the tumor microenvironment. In addition, the intratumoral T cell infiltration was augmented, together with chemotherapy and NO therapy, which greatly inhibited tumor growth. DISCUSSION Our research designed a simple strategy to open the vascular barrier by inhibiting the tumor-associated platelets, which provide new ideas for anti-tumor treatment.
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Affiliation(s)
- Yan Xu
- School of Pharmaceutical Science, Nanjing Tech University, Nanjing, Jiangsu, People’s Republic of China
| | - Jiwei Liu
- School of Pharmaceutical Science, Nanjing Tech University, Nanjing, Jiangsu, People’s Republic of China
| | - Zhangya Liu
- School of Pharmaceutical Science, Nanjing Tech University, Nanjing, Jiangsu, People’s Republic of China
| | - Guoguang Chen
- School of Pharmaceutical Science, Nanjing Tech University, Nanjing, Jiangsu, People’s Republic of China
| | - Xueming Li
- School of Pharmaceutical Science, Nanjing Tech University, Nanjing, Jiangsu, People’s Republic of China
| | - Hao Ren
- School of Pharmaceutical Science, Nanjing Tech University, Nanjing, Jiangsu, People’s Republic of China
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Abstract
Thrombocytopenia-induced tumor hemorrhage improves drug delivery to tumors. This phenomenon presents a new way to increase drug efficacy with minimal side effects. Combining anti-platelet treatment with therapeutic drugs may help us in the search for more effective ways to fight cancer.
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Affiliation(s)
- Mélanie Demers
- Immune Disease Institute; Program in Cellular and Molecular Medicine; Children's Hospital Boston; Department of Pediatrics; Harvard Medical School; Boston, MA USA
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49
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DeRoo E, Martinod K, Cherpokova D, Fuchs T, Cifuni S, Chu L, Staudinger C, Wagner DD. The role of platelets in thrombus fibrosis and vessel wall remodeling after venous thrombosis. J Thromb Haemost 2021; 19:387-399. [PMID: 33058430 PMCID: PMC8530247 DOI: 10.1111/jth.15134] [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: 06/29/2020] [Revised: 09/09/2020] [Accepted: 10/06/2020] [Indexed: 01/20/2023]
Abstract
PURPOSE Platelets are known to play an important role in venous thrombogenesis, but their role in thrombus maturation, resolution, and postthrombotic vein wall remodeling is unclear. The purpose of this study was to determine the role that circulating platelets play in the later phases of venous thrombosis. METHODS We used a murine inferior vena cava (IVC) stenosis model. Baseline studies in untreated mice were performed to determine an optimal postthrombotic time point for tissue harvest that would capture both thrombus maturation/resolution and postthrombotic vein wall remodeling. This time point was found to be postoperative day 10. After undergoing IVC ultrasound on day 2 to confirm venous thrombus formation, mice were treated with a daily injection of platelet-depleting antibody (anti-GP1bα) to maintain thrombocytopenia or with control IgG until postoperative day 10, at which time IVC and thrombi were harvested and thrombus length, volume, fibrosis, neovascularization, and smooth muscle cell invasion analyzed. Vein wall fibrosis and intimal thickening were also determined. RESULTS Mice that were made thrombocytopenic after venous thrombogenesis had thrombi that were less fibrotic, with fewer invading smooth muscle cells. Furthermore, thrombocytopenia in the setting of venous thrombosis resulted in less postthrombotic vein wall intimal thickening. Thrombus volume did not differ between thrombocytopenic mice and their control peers. CONCLUSIONS This work suggests that circulating platelets contribute to venous thrombus maturation, fibrosis, and adverse vein wall remodeling, and that that inhibition of platelet recruitment may decrease thrombus and vein wall fibrosis, thus helping thrombolysis and preventing postthrombotic syndrome.
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Affiliation(s)
- Elise DeRoo
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Kimberly Martinod
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Deya Cherpokova
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Tobias Fuchs
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Stephen Cifuni
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Long Chu
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Caleb Staudinger
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Denisa D. Wagner
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
- Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA, USA
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50
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Gómez RM, López Ortiz AO, Schattner M. New roles of platelets in inflammation. CURRENT OPINION IN PHYSIOLOGY 2021. [DOI: 10.1016/j.cophys.2020.08.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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