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Banerjee M, Rowley JW, Stubben CJ, Tolley ND, Freson K, Nelson B, Nagy B, Fejes Z, Blair AM, Turro E, Gresele P, Taranta GC, Bury L, Falcinelli E, Lordkipanidzé M, Alessi MC, Johnson AD, Bakchoul T, Ramstrom S, Frontini M, Camera M, Brambilla M, Campbell RA, Rondina MT. Prospective, international, multisite comparison of platelet isolation techniques for genome-wide transcriptomics: communication from the SSC of the ISTH. J Thromb Haemost 2024; 22:2922-2934. [PMID: 38969303 PMCID: PMC11416310 DOI: 10.1016/j.jtha.2024.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 07/07/2024]
Abstract
Genome-wide platelet transcriptomics is increasingly used to uncover new aspects of platelet biology and as a diagnostic and prognostic tool. Nevertheless, platelet isolation methods for transcriptomic studies are not standardized, introducing challenges for cross-study comparisons, data integration, and replication. In this prospective multicenter study, called "Standardizing Platelet Transcriptomics for Discovery, Diagnostics, and Therapeutics in the Thrombosis and Hemostasis Community (STRIDE)" by the International Society on Thrombosis and Haemostasis Scientific and Standardization Committees, we assessed how 3 of the most commonly used platelet isolation protocols influence metrics from next-generation bulk RNA sequencing and functional assays. Compared with washing alone, more stringent removal of leukocytes by anti-CD45 beads or PALL filters resulted in a sufficient quantity of RNA for next-generation sequencing and similar quality of RNA sequencing metrics. Importantly, stringent removal of leukocytes resulted in the lower relative expression of known leukocyte-specific genes and the higher relative expression of known platelet-specific genes. The results were consistent across enrolling sites, suggesting that the techniques are transferrable and reproducible. Moreover, all 3 isolation techniques did not influence basal platelet reactivity, but agonist-induced integrin αIIbβ3 activation is reduced by anti-CD45 bead isolation compared with washing alone. In conclusion, the isolation technique chosen influences genome-wide transcriptional and functional assays in platelets. These results should help the research community make informed choices about platelet isolation techniques in their own platelet studies.
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Affiliation(s)
- Meenakshi Banerjee
- University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah, USA
| | - Jesse W Rowley
- University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah, USA; Department of Internal Medicine, University of Utah Health, Salt Lake City, Utah, USA
| | - Chris J Stubben
- Bioinformatics Shared Resource, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Neal D Tolley
- University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah, USA
| | - Kathleen Freson
- Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, Katholeike Universiteit (KU) Leuven, Leuven, Belgium
| | - Benjamin Nelson
- University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah, USA
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Fejes
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Antoinette M Blair
- University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah, USA
| | - Ernest Turro
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Paolo Gresele
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Loredana Bury
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, Quebec, Canada; Faculty of Pharmacy, Université de Montréal, Montreal, Quebec, Canada
| | - Marie-Christine Alessi
- Cardiovascular and Nutrition Centre (C2VN), Aix Marseille University, Institut National de la Sante et de la Recherche Medicale (INSERM), National Research Institute for Agriculture, Food and Environment (INRAE), Marseille, France
| | - Andrew D Johnson
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, Framingham, Massachusetts, USA; The Framingham Heart Study, Framingham, Massachusetts, USA
| | - Tamam Bakchoul
- Department of Transfusion Medicine, Medical Faculty of Tubingen, University of Tubingen, Tubingen, Germany
| | - Sofia Ramstrom
- Cardiovascular Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Mattia Frontini
- Department of Clinical and Biomedical Sciences, University of Exeter Medical School, Faculty of Health and Life Sciences, Exeter, United Kingdom
| | - Marina Camera
- Unit of Cell and Molecular Biology in Cardiovascular Diseases, Centro Cardiologico Monzino, Instituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy; Department of Pharmaceutical Sciences, Università Degli Studi Di Milano, Milan, Italy
| | - Marta Brambilla
- Unit of Cell and Molecular Biology in Cardiovascular Diseases, Centro Cardiologico Monzino, Instituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - Robert A Campbell
- University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah, USA; Department of Internal Medicine, University of Utah Health, Salt Lake City, Utah, USA
| | - Matthew T Rondina
- University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah, USA; Department of Internal Medicine, University of Utah Health, Salt Lake City, Utah, USA; George E. Wahlen Veterans Affairs Medical Center & Geriatric Research Education and Clinical Center (GRECC), Salt Lake City, Utah, USA.
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2
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Hou M, Wu J, Li J, Zhang M, Yin H, Chen J, Jin Z, Dong R. Immunothrombosis: A bibliometric analysis from 2003 to 2023. Medicine (Baltimore) 2024; 103:e39566. [PMID: 39287275 PMCID: PMC11404911 DOI: 10.1097/md.0000000000039566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/19/2024] Open
Abstract
BACKGROUND Immunothrombosis is a physiological process that constitutes an intravascular innate immune response. Abnormal immunothrombosis can lead to thrombotic disorders. With the outbreak of COVID-19, there is increasing attention to the mechanisms of immunothrombosis and its critical role in thrombotic events, and a growing number of relevant research papers are emerging. This article employs bibliometrics to discuss the current status, hotspots, and trends in research of this field. METHODS Research papers relevant to immunothrombosis published from January 1, 2003, to May 29, 2023, were collected from the Web of Science Core Collection database. VOSviewer and the R package "Bibliometrix" were employed to analyze publication metrics, including the number of publications, authors, countries, institutions, journals, and keywords. The analysis generated visual results, and trends in research topics and hotspots were examined. RESULTS A total of 495 target papers were identified, originating from 58 countries and involving 3287 authors from 1011 research institutions. Eighty high-frequency keywords were classified into 5 clusters. The current key research topics in the field of immunothrombosis include platelets, inflammation, neutrophil extracellular traps, Von Willebrand factor, and the complement system. Research hotspots focus on the mechanisms and manifestations of immunothrombosis in COVID-19, as well as the discovery of novel treatment strategies targeting immunothrombosis in cardiovascular and cerebrovascular diseases. CONCLUSION Bibliometric analysis summarizes the main achievements and development trends in research on immunothrombosis, offering readers a comprehensive understanding of the field and guiding future research directions.
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Affiliation(s)
- Mengyu Hou
- Department of Research Ward, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Martinez Bravo G, Annarapu G, Carmona E, Nawarskas J, Clark R, Novelli E, Mota Alvidrez RI. Platelets in Thrombosis and Atherosclerosis: A Double-Edged Sword. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:1608-1621. [PMID: 38885926 PMCID: PMC11373056 DOI: 10.1016/j.ajpath.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/16/2024] [Accepted: 05/16/2024] [Indexed: 06/20/2024]
Abstract
This review focuses on the dual role of platelets in atherosclerosis and thrombosis, exploring their involvement in inflammation, angiogenesis, and plaque formation, as well as their hemostatic and prothrombotic functions. Beyond their thrombotic functions, platelets engage in complex interactions with diverse cell types, influencing disease resolution and progression. The contribution of platelet degranulation helps in the formation of atheromatous plaque, whereas the reciprocal interaction with monocytes adds complexity. Alterations in platelet membrane receptors and signaling cascades contribute to advanced atherosclerosis, culminating in atherothrombotic events. Understanding these multifaceted roles of platelets will lead to the development of targeted antiplatelet strategies for effective cardiovascular disease prevention and treatment. Understanding platelet functions in atherosclerosis and atherothrombosis at different stages of disease will be critical for designing targeted treatments and medications to prevent or cure the disease Through this understanding, platelets can be targeted at specific times in the atherosclerosis process, possibly preventing the development of atherothrombosis.
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Affiliation(s)
| | - Gowtham Annarapu
- Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Emely Carmona
- School of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - James Nawarskas
- Pharmaceutical Sciences-Pharmacy Practice, College of Pharmacy, University of New Mexico, Albuquerque, New Mexico
| | - Ross Clark
- Cell Biology and Physiology, University of New Mexico, Albuquerque, New Mexico; Clinical and Translational Science Center, University of New Mexico, Albuquerque, New Mexico
| | - Enrico Novelli
- Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania; School of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Roberto I Mota Alvidrez
- Biomedical Engineering Department, University of New Mexico, Albuquerque, New Mexico; Pharmaceutical Sciences-Pharmacy Practice, College of Pharmacy, University of New Mexico, Albuquerque, New Mexico; Clinical and Translational Science Center, University of New Mexico, Albuquerque, New Mexico.
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Gauer JS, Ajanel A, Kaselampao LM, Candir I, MacCannell AD, Roberts LD, Campbell RA, Ariëns RA. Plant-derived compounds normalize platelet bioenergetics and function in hyperglycemia. Res Pract Thromb Haemost 2024; 8:102548. [PMID: 39309231 PMCID: PMC11416496 DOI: 10.1016/j.rpth.2024.102548] [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: 06/03/2024] [Revised: 07/16/2024] [Accepted: 08/08/2024] [Indexed: 09/25/2024] Open
Abstract
Background Polyphenols have been shown to decrease oxidative stress and modulate glycemic response. Nevertheless, their effect on platelet bioenergetics and clot structure in diabetes and hyperglycemia is unknown. Objectives To investigate the effect of polyphenols on human platelet bioenergetics and its subsequent effect on clot structure in normoglycemia vs acute hyperglycemia in vitro. Methods Four polyphenols (resveratrol, hesperetin, epigallocatechin gallate [EGCG], and quercetin) were selected for initial analysis. Healthy volunteers' isolated platelets/platelet-rich plasma were treated with 5 or 25 mM glucose to represent normoglycemia and acute hyperglycemia, respectively. Platelet-derived reactive oxygen species (ROS), citrate synthase activity (mitochondrial density), mitochondrial calcium flux, and mitochondrial respiration were performed following exposure to polyphenols (20 µM, 1 hour) to determine their effects on platelet bioenergetics. Procoagulant platelets (annexin V) and fibrin fiber density (Alexa Fluor-488 fibrinogen; Invitrogen) were analyzed by laser scanning confocal microscopy, while clot porosity was determined using platelet-rich plasma following exposure to polyphenols (20 µM, 20 minutes). Results Acute hyperglycemia increased ROS, mitochondrial calcium flux, maximal respiration, and procoagulant platelet number. Resveratrol, quercetin, and EGCG reduced platelet ROS in normoglycemic and acute hyperglycemic conditions. Mitochondrial density was decreased by quercetin and EGCG in normoglycemia. Resveratrol and EGCG reduced mitochondrial calcium flux in acute hyperglycemia. Resveratrol also decreased procoagulant platelet number and attenuated oxygen consumption rate in normoglycemia and acute hyperglycemia. No effect of hyperglycemia or polyphenols was observed on fibrin fiber density or clot pore size. Conclusion Our results suggest polyphenols attenuate increased platelet activity stemming from hyperglycemia and may benefit thrombosis-preventative strategies in patients with diabetes.
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Affiliation(s)
- Julia S. Gauer
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - 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
| | - Lutale M. Kaselampao
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Isabel Candir
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Amanda D.V. MacCannell
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Lee D. Roberts
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Robert A. Campbell
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA
- Department of Pathology, University of Utah, Salt Lake City, UT 84112, USA
- Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA
- Department of Emergency, Washington University, Saint Louis, MO 63110, USA
| | - Robert A.S. Ariëns
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
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Liu R, Yang Y, Shi G, Zhang L. Branched-chain amino acid supplementation drives dynamic changes in gut microbiota without impairing glucose and lipid homeostasis at the different stages of insulin resistance in mice on a high-fat diet. Nutrition 2024; 123:112410. [PMID: 38579382 DOI: 10.1016/j.nut.2024.112410] [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: 12/15/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 04/07/2024]
Abstract
OBJECTIVE The potential role of dietary branched-chain amino acids on circulating branched-chain amino acid levels and their relationship with metabolic health are complex, and the literature is inconsistent. We aimed to explore the dynamic effects of branched-chain amino acid supplementation on glucose and lipid homeostasis at different stages of insulin resistance in high-fat diet-fed mice. METHODS Male C57BL/6J mice were fed with a normal chow diet, high-fat diet, or high-fat diet supplemented with 100% branched-chain amino acids for 12 or 24 wk. Metabolic parameters and gut microbiota profiling were performed at these two time points. RESULTS High-fat diet feeding caused varying degrees of branched-chain amino acid metabolic disorders in two different stages of insulin resistance. Supplementing with branched-chain amino acids further exacerbated branched-chain amino acid accumulation in the early stage of insulin resistance (12 wk), while adding branched-chain amino acids did not further elevate branched-chain amino acid levels in the hyperglycemia and hyperinsulinemia stage (24 wk). Compared with the high-fat diet group, branched-chain amino acid supplementation did not affect body weight; liver total cholesterol and triacylglycerol levels; and serum glucose, insulin, total cholesterol, triacylglycerol, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol levels as well as glucose tolerance at these two time points but triggered dynamic changes in the gut bacterial diversity and gut microbiota composition and abundance, especially in the genus associated with obesity and related metabolic disorders. CONCLUSION Dietary branched-chain amino acid supplementation drives dynamic changes in circulating branched-chain amino acid levels and gut microbiome without subsequent effects on glucose and lipid homeostasis in high-fat diet-induced obese mice within the parameters of our study.
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Affiliation(s)
- Rui Liu
- Department of Public Health and Preventive Medicine, School of Medicine, Jianghan University, Wuhan, China.
| | - Yang Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Guanjin Shi
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lei Zhang
- Department of Chinese Medicine, School of Medicine, Jianghan University, Wuhan, China
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Ozawa K, Packwood W, Muller MA, Qi Y, Xie A, Varlamov O, McCarty OJ, Chung D, López JA, Lindner JR. Removal of endothelial surface-associated von villebrand factor suppresses accelerate datherosclerosis after myocardial infarction. J Transl Med 2024; 22:412. [PMID: 38693516 PMCID: PMC11062912 DOI: 10.1186/s12967-024-05231-6] [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: 02/01/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND Thromboinflammation involving platelet adhesion to endothelial surface-associated von Willebrand factor (VWF) has been implicated in the accelerated progression of non-culprit plaques after MI. The aim of this study was to use arterial endothelial molecular imaging to mechanistically evaluate endothelial-associated VWF as a therapeutic target for reducing remote plaque activation after myocardial infarction (MI). METHODS Hyperlipidemic mice deficient for the low-density lipoprotein receptor and Apobec-1 underwent closed-chest MI and were treated chronically with either: (i) recombinant ADAMTS13 which is responsible for proteolytic removal of VWF from the endothelial surface, (ii) N-acetylcysteine (NAC) which removes VWF by disulfide bond reduction, (iii) function-blocking anti-factor XI (FXI) antibody, or (iv) no therapy. Non-ischemic controls were also studied. At day 3 and 21, ultrasound molecular imaging was performed with probes targeted to endothelial-associated VWF A1-domain, platelet GPIbα, P-selectin and vascular cell adhesion molecule-1 (VCAM-1) at lesion-prone sites of the aorta. Histology was performed at day 21. RESULTS Aortic signal for P-selectin, VCAM-1, VWF, and platelet-GPIbα were all increased several-fold (p < 0.01) in post-MI mice versus sham-treated animals at day 3 and 21. Treatment with NAC and ADAMTS13 significantly attenuated the post-MI increase for all four molecular targets by > 50% (p < 0.05 vs. non-treated at day 3 and 21). On aortic root histology, mice undergoing MI versus controls had 2-4 fold greater plaque size and macrophage content (p < 0.05), approximately 20-fold greater platelet adhesion (p < 0.05), and increased staining for markers of platelet transforming growth factor-β1 signaling. Accelerated plaque growth and inflammatory activation was almost entirely prevented by ADAMTS13 and NAC. Inhibition of FXI had no significant effect on molecular imaging signal or plaque morphology. CONCLUSIONS Plaque inflammatory activation in remote arteries after MI is strongly influenced by VWF-mediated platelet adhesion to the endothelium. These findings support investigation into new secondary preventive therapies for reducing non-culprit artery events after MI.
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Affiliation(s)
- Koya Ozawa
- Sydney Medical School Nepean, Faculty of Medicine and Health, Department of Cardiology, The University of Sydney, Nepean Hospital, Sydney, NSW, Australia
| | - William Packwood
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA
| | - Matthew A Muller
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA
| | - Yue Qi
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, USA
| | - Aris Xie
- Cardiovascular Division and Robert M. Berne Cardiovascular Research Center, University of Virginia, Box 801394, 415 Lane Rd, Charlottesville, VA, 22908, USA
| | - Oleg Varlamov
- Oregon National Primate Research Center, Portland, OR, USA
| | - Owen J McCarty
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, USA
| | - Dominic Chung
- BloodWorks Research Institute, University of Washington, Seattle, WA, USA
| | - José A López
- BloodWorks Research Institute, University of Washington, Seattle, WA, USA
| | - Jonathan R Lindner
- Cardiovascular Division and Robert M. Berne Cardiovascular Research Center, University of Virginia, Box 801394, 415 Lane Rd, Charlottesville, VA, 22908, USA.
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Jin Y, Wang F, Tang J, Luo L, Huang L, Zhou F, Qi E, Hu X, Deng S, Ge H, Jiang Y, Feng J, Li X. Low platelet count at diagnosis of anti-neutrophil cytoplasmic antibody-associated vasculitis is correlated with the severity of disease and renal prognosis. Clin Exp Med 2024; 24:70. [PMID: 38578316 PMCID: PMC10997538 DOI: 10.1007/s10238-024-01333-z] [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: 02/08/2024] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
Antineutrophil cytoplasmic antibody-associated vasculitis (AAV) is an autoimmune disease that involves inflammation of blood vessels. There is increasing evidence that platelets play a crucial role not only in hemostasis but also in inflammation and innate immunity. In this study, we explored the relationship between platelet count, clinical characteristics, and the prognosis of patients with AAV. We divided 187 patients into two groups based on their platelet count. Clinicopathological data and prognostic information were retrospectively gathered from medical records. Univariate and multivariate regression analyses were used to identify risk factors for prognosis, including end-stage renal disease (ESRD) and mortality. The cutoff point for platelet count was set at 264.5 × 109/L, as determined by the receiver operating characteristic (ROC) curve for predicting progression to ESRD in patients with AAV. We observed patients with low platelet count (platelets < 264.5 × 109/L) had lower leukocytes, hemoglobin, complement, acute reactants, and worse renal function (P for eGFR < 0.001). They were also more likely to progress to ESRD or death compared to the high platelet count group (platelets > 264.5 × 109/L) (P < 0.0001, P = 0.0338, respectively). Low platelet count was potentially an independent predictor of poor renal prognosis in the multivariate regression analysis [HR 1.670 (95% CI 1.019-2.515), P = 0.014]. Lower platelet count at diagnosis is associated with more severe clinical characteristics and impaired renal function. Therefore, platelet count may be an accessible prognostic indicator for renal outcomes in patients with AAV.
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Affiliation(s)
- Yanli Jin
- Department of Nephrology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Kaifu District, Changsha, Hunan, China
| | - Fangyuan Wang
- Department of Nephrology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Kaifu District, Changsha, Hunan, China
| | - Jiale Tang
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Liying Luo
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Lingyu Huang
- Department of Nephrology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Kaifu District, Changsha, Hunan, China
| | - Fangyu Zhou
- Department of Nephrology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Kaifu District, Changsha, Hunan, China
| | - Enyu Qi
- Department of Nephrology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Kaifu District, Changsha, Hunan, China
| | - Xinyue Hu
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Shuanglinzi Deng
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Huan Ge
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yuanyuan Jiang
- Department of Laboratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Juntao Feng
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaozhao Li
- Department of Nephrology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Kaifu District, Changsha, Hunan, China.
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Mizuno T, Nagano F, Takahashi K, Yamada S, Fruhashi K, Maruyama S, Tsuboi N. Macrophage-1 antigen exacerbates histone-induced acute lung injury and promotes neutrophil extracellular trap formation. FEBS Open Bio 2024; 14:574-583. [PMID: 38360057 PMCID: PMC10988669 DOI: 10.1002/2211-5463.13779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 01/17/2024] [Accepted: 02/06/2024] [Indexed: 02/17/2024] Open
Abstract
Acute lung injury (ALI), which occurs in association with sepsis, trauma, and coronavirus disease 2019 (COVID-19), is a serious clinical condition with high mortality. Excessive platelet-leukocyte aggregate (PLA) formation promotes neutrophil extracellular trap (NET) release and thrombosis, which are involved in various diseases, including ALI. Macrophage-1 antigen (Mac-1, CD11b/CD18), which is expressed on the surface of leukocytes, is known to promote NET formation. This study aimed to elucidate the role of Mac-1 in extracellular histone-induced ALI. Exogenous histones were administered to Mac-1-deficient mice and wild-type (WT) mice with or without neutrophil or platelet depletion, and several parameters were investigated 1 h after histone injection. Depletion of neutrophils or platelets improved survival time and macroscopic and microscopic properties of lung tissues, and decreased platelet-leukocyte formation and plasma myeloperoxidase levels. These improvements were also observed in Mac-1-/- mice. NET formation in Mac-1-/- bone marrow neutrophils (BMNs) was significantly lower than that in WT BMNs. In conclusion, our findings suggest that Mac-1 is associated with exacerbation of histone-induced ALI and the promotion of NET formation in the presence of activated platelets.
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Affiliation(s)
- Tomohiro Mizuno
- Department of Pharmacotherapeutics and InformaticsFujita Health University School of MedicineToyoakeJapan
| | - Fumihiko Nagano
- Department of NephrologyNagoya University School of MedicineJapan
| | - Kazuo Takahashi
- Department of Biomedical Molecular SciencesFujita Health University School of MedicineToyoakeJapan
| | - Shigeki Yamada
- Department of Pharmacotherapeutics and InformaticsFujita Health University School of MedicineToyoakeJapan
| | | | - Shoichi Maruyama
- Department of NephrologyNagoya University School of MedicineJapan
| | - Naotake Tsuboi
- Department of NephrologyFujita Health University School of MedicineToyoakeJapan
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9
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Cheng MD, Zheng YY, Zhang XY, Ruzeguli T, Sureya Y, Didaer Y, Ailiman M, Zhang JY. The Simplified Thrombo-Inflammatory Score as a Novel Predictor of All-Cause Mortality in Patients with Heart Failure: A Retrospective Cohort Study. J Inflamm Res 2024; 17:1845-1855. [PMID: 38523685 PMCID: PMC10961063 DOI: 10.2147/jir.s452544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/08/2024] [Indexed: 03/26/2024] Open
Abstract
Background The simplified thrombo-inflammatory score (sTIPS) has recently emerged as a novel prognostic score. Hence, we investigated the prognostic value of sTIPS for predicting long-term mortality in patients with heart failure (HF). Methods A total of 3741 patients were analyzed in this study. The sTIPS was calculated based on the white blood cell count (WBC) and the mean platelet volume to platelet count (MPV/PC) ratio at admission. The mean follow-up time was 22.75 months. Multivariable Cox regression analyses were used to investigate the associations between the sTIPS and all-cause mortality (ACM). Results In the whole study population, multivariate Cox regression analysis showed that patients in both the sTIPS 2 and sTIPS 1 groups had significantly increased risk of ACM as compared with patients in the sTIPS 0 group (hazard ratio [HR]=1.706, 95% confidence interval [CI]: 1.405-2.072, P<0.001 and HR = 1.431, 95% CI 1.270-1.612, P<0.001). The same significant trend was observed in heart failure with preserved ejection fraction (HFpEF) patients (sTIPS1 vs sTIPS0: HR = 1.366, 95% CI 1.100-1.697, P = 0.005; sTIPS2 vs sTIPS0: HR = 1.995, 95% CI 1.460-2.725, P<0.001). However, only sTIPS 1 group had a significantly increased the risk of ACM compared to the sTIPS 0 group among patients with HFmrEF (sTIPS1 vs sTIPS0: HR = 1.648, 95% CI 1.238-2.194, P = 0.001) and HFrEF (sTIPS1 vs sTIPS0: HR = 1.322, 95% CI 1.021-1.712, P = 0.035). Conclusion sTIPS is useful in predicting risk for long-term mortality in patients with HF.
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Affiliation(s)
- Meng-Die Cheng
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Ying-Ying Zheng
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, People’s Republic of China
| | - Xing-Yan Zhang
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, People’s Republic of China
| | - Tuersun Ruzeguli
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, People’s Republic of China
| | - Yisimayili Sureya
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, People’s Republic of China
| | - Yisha Didaer
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, People’s Republic of China
| | - Mahemuti Ailiman
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, People’s Republic of China
| | - Jin-Ying Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
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10
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Balakrishnan R, Subbarayan R, Shrestha R, Chauhan A, Krishnamoorthy L. Exploring platelet-derived microvesicles in vascular regeneration: unraveling the intricate mechanisms and molecular mediators. Mol Biol Rep 2024; 51:393. [PMID: 38446325 DOI: 10.1007/s11033-024-09302-1] [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: 12/22/2023] [Accepted: 01/30/2024] [Indexed: 03/07/2024]
Abstract
Microvesicles (MVs) serve as biomarkers and transmitters for cell communication and also act as essential contributors to diseases. Platelets release microvesicles when activated voluntarily, making them a significant source. Platelet-derived microvesicles possess a range of characteristics similar to their parent cells and were shown to exert regulatory impacts on vascular and immunological cells. MVs can alter the activity of recipient cells by transferring their internal components. Furthermore, it has been identified that microvesicles derived from platelets possess the ability to exert immunomodulatory effects on different kinds of cells. Recent research has shown that microvesicles have a bidirectional influence of harming and preventing the receptor cells. Nevertheless, the specific characteristics of the active molecules responsible for this phenomenon are still unknown. The primary focus of this review was to explore the mechanism of vascular tissue regeneration and the specific molecules that play a role in mediating various biological effects throughout this process. These molecules exert their effects by influencing autophagy, apoptosis, and inflammatory pathways.
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Affiliation(s)
- Ranjith Balakrishnan
- Centre for Advanced Biotherapeutics and Regenerative Medicine, FAHS, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, India
| | - Rajasekaran Subbarayan
- Centre for Advanced Biotherapeutics and Regenerative Medicine, FAHS, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, India.
| | | | - Ankush Chauhan
- Faculty of Allied Health Sciences, Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, India
| | - Loganathan Krishnamoorthy
- FAHS, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, India
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11
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Costantini TW, Kornblith LZ, Pritts T, Coimbra R. The intersection of coagulation activation and inflammation after injury: What you need to know. J Trauma Acute Care Surg 2024; 96:347-356. [PMID: 37962222 PMCID: PMC11001294 DOI: 10.1097/ta.0000000000004190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Affiliation(s)
- Todd W Costantini
- From the Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, Department of Surgery (T.W.C.), UC San Diego School of Medicine, San Diego; Department of Surgery (L.Z.K.), Zuckerberg San Francisco General Hospital, University of California, San Francisco, San Francisco, California; Department of Surgery (T.P.), University of Cincinnati College of Medicine, Cincinnati, Ohio; and Comparative Effectiveness and Clinical Outcomes Research Center (R.C.), Riverside University Health System, Loma Linda University School of Medicine, Riverside, California
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12
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Dai W, Cai D, Zhou S, Li A, Xie J, Zhang J. Uncovering a causal connection between the Lachnoclostridium genus in fecal microbiota and non-alcoholic fatty liver disease: a two-sample Mendelian randomization analysis. Front Microbiol 2023; 14:1276790. [PMID: 38192292 PMCID: PMC10773585 DOI: 10.3389/fmicb.2023.1276790] [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: 08/13/2023] [Accepted: 11/21/2023] [Indexed: 01/10/2024] Open
Abstract
Background Previous observational studies have indicated that an imbalance in gut microbiota may contribute to non-alcoholic fatty liver disease (NAFLD). However, given the inevitable bias and unmeasured confounders in observational studies, the causal relationship between gut microbiota and NAFLD cannot be deduced. Therefore, we employed a two-sample Mendelian randomization (TSMR) study to assess the causality between gut microbiota and NAFLD. Methods The gut microbiota-related genome-wide association study (GWAS) data of 18,340 individuals were collected from the International MiBioGen consortium. The GWAS summary data for NAFLD from the Anstee cohort (1,483 cases and 17,781 controls) and the FinnGen consortium (894 cases and 217,898 controls) were utilized in the discovery and verification phases, respectively. The inverse variance weighted (IVW) method was used as the principal method in our Mendelian randomization (MR) study, with sensitivity analyses using the MR-Egger, weighted median, simple mode, and weighted mode methods. The MR-Egger intercept test, Cochran's Q test, and leave-one-out analysis were conducted to identify heterogeneity and pleiotropy. Moreover, a fixed-effect meta-analysis was conducted to verify the robustness of the results. Results The gene prediction results showed that at the genus level, four gut microbiota were causally associated with NAFLD in the GWAS conducted by Anstee et al. The relative abundance of Intestinimonas (OR: 0.694, 95%CI: 0.533-0.903, p = 0.006, IVW), Lachnoclostridium (OR: 0.420, 95%CI: 0.245-0.719, p = 0.002, IVW), and Senegalimassilia (OR: 0.596, 95%CI: 0.363-0.978, p = 0.041, IVW) was negatively associated with NAFLD. The relative abundance of Ruminococcus1 (OR: 1.852, 95%CI: 1.179-2.908, p = 0.007, IVW) was positively correlated with NAFLD. Among them, the Lachnoclostridium genus was validated in FinnGen GWAS (OR: 0.53, 95%CI: 0.304-0.928, p = 0.026, IVW). The Lachnoclostridium genus was also significantly associated with NAFLD risk in the meta-analyses (OR: 0.470, 95%CI: 0.319-0.692, p = 0.0001, IVW). No heterogeneity or pleiotropy was observed. Conclusion This study provided new evidence of the relationship between the Lachnoclostridium genus and NAFLD, suggesting that augmentation of the relative abundance of the Lachnoclostridium genus through the oral administration of probiotics or fecal microbiota transplantation could be an effective way to reduce the risk of NAFLD.
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Affiliation(s)
- Wanhui Dai
- Department of Clinical Laboratory, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Dandong Cai
- Department of Neurology, The Fifth People's Hospital of Huai'an, Huai'an, China
| | - Shuai Zhou
- Department of Endocrinology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Ang Li
- Department of Endocrinology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Jinsong Xie
- Department of Clinical Laboratory, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jie Zhang
- Department of Endocrinology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
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13
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Tang FC, Li RH, Huang JH. Unraveling the Connection between Fatty Liver Severity with Gender, Lifestyle, and Health Risks among Workers. Nutrients 2023; 15:4765. [PMID: 38004157 PMCID: PMC10675491 DOI: 10.3390/nu15224765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
The purpose of this study was to investigate the correlation between the severity of fatty liver and factors such as gender, lifestyle, and the risks of metabolic abnormalities, inflammation, and liver dysfunction in the working population. This cross-sectional study included 2936 workers aged 21-64 years. The severity of fatty liver was assessed using ultrasound. A self-administered survey was used to evaluate lifestyle habits. Data on anthropometric measurements, blood pressure, blood tests, and biochemical evaluations was collected. The 45.5% of workers had fatty liver. Males had a higher prevalence of fatty liver and health risks and several unhealthy lifestyle habits compared to females. The health behavior score related to exercise showed notable declines as the severity of fatty liver increased (p < 0.001). Percentages of current alcohol drinkers differed among different levels of fatty liver, with rates of 43.1, 48.4, 44.8, and 63.4% (p = 0.005) observed in the absence, mild, moderate, and severe fatty liver, respectively. Workers with fatty liver showed increased risks related to metabolic anomalies, especially in severe cases. The risk of inflammation and liver dysfunction also significantly increased with elevated fatty liver severity. Overall, fatty liver presents significant health risks, with nearly half of the workers diagnosed with the condition. To improve liver health, it is crucial to have customized strategies for promoting health, taking into account the different levels of severity in fatty liver.
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Affiliation(s)
- Feng-Cheng Tang
- Department of Occupational Medicine, Changhua Christian Hospital, Changhua 500, Taiwan;
| | - Ren-Hau Li
- Department of Psychology, Chung Shan Medical University, Taichung 402, Taiwan;
| | - Jui-Hua Huang
- Department of Golden-Ager Industry Management, Chaoyang University of Technology, Taichung 413, Taiwan
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14
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Rezaeitaleshmahalleh M, Lyu Z, Mu N, Zhang X, Rasmussen TE, McBane RD, Jiang J. Characterization of small abdominal aortic aneurysms' growth status using spatial pattern analysis of aneurismal hemodynamics. Sci Rep 2023; 13:13832. [PMID: 37620387 PMCID: PMC10449842 DOI: 10.1038/s41598-023-40139-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/05/2023] [Indexed: 08/26/2023] Open
Abstract
Aneurysm hemodynamics is known for its crucial role in the natural history of abdominal aortic aneurysms (AAA). However, there is a lack of well-developed quantitative assessments for disturbed aneurysmal flow. Therefore, we aimed to develop innovative metrics for quantifying disturbed aneurysm hemodynamics and evaluate their effectiveness in predicting the growth status of AAAs, specifically distinguishing between fast-growing and slowly-growing aneurysms. The growth status of aneurysms was classified as fast (≥ 5 mm/year) or slow (< 5 mm/year) based on serial imaging over time. We conducted computational fluid dynamics (CFD) simulations on 70 patients with computed tomography (CT) angiography findings. By converting hemodynamics data (wall shear stress and velocity) located on unstructured meshes into image-like data, we enabled spatial pattern analysis using Radiomics methods, referred to as "Hemodynamics-informatics" (i.e., using informatics techniques to analyze hemodynamic data). Our best model achieved an AUROC of 0.93 and an accuracy of 87.83%, correctly identifying 82.00% of fast-growing and 90.75% of slowly-growing AAAs. Compared with six classification methods, the models incorporating hemodynamics-informatics exhibited an average improvement of 8.40% in AUROC and 7.95% in total accuracy. These preliminary results indicate that hemodynamics-informatics correlates with AAAs' growth status and aids in assessing their progression.
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Affiliation(s)
- Mostafa Rezaeitaleshmahalleh
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, USA
- Joint Center for Biocomputing and Digital Health, Health Research Institute, and Institute of Computing and Cybernetics, Michigan Technological University, Houghton, MI, USA
| | - Zonghan Lyu
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, USA
- Joint Center for Biocomputing and Digital Health, Health Research Institute, and Institute of Computing and Cybernetics, Michigan Technological University, Houghton, MI, USA
| | - Nan Mu
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, USA
- Joint Center for Biocomputing and Digital Health, Health Research Institute, and Institute of Computing and Cybernetics, Michigan Technological University, Houghton, MI, USA
| | - Xiaoming Zhang
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Todd E Rasmussen
- Division of Vascular and Endovascular Surgery, Mayo Clinic, Rochester, MN, USA
| | - Robert D McBane
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Jingfeng Jiang
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, USA.
- Joint Center for Biocomputing and Digital Health, Health Research Institute, and Institute of Computing and Cybernetics, Michigan Technological University, Houghton, MI, USA.
- Department of Radiology, Mayo Clinic, Rochester, MN, USA.
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15
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Wang Y, Jin X, Li M, Gao J, Zhao X, Ma J, Shi C, He B, Hu L, Shi J, Liu G, Qu G, Zheng Y, Jiang G. PM 2.5 Increases Systemic Inflammatory Cells and Associated Disease Risks by Inducing NRF2-Dependent Myeloid-Biased Hematopoiesis in Adult Male Mice. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:7924-7937. [PMID: 37184982 DOI: 10.1021/acs.est.2c09024] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Although PM2.5 (fine particles with aerodynamic diameter <2.5 μm) exposure shows the potential to impact normal hematopoiesis, the detailed alterations in systemic hematopoiesis and the underlying mechanisms remain unclear. For hematopoiesis under steady-state or stress conditions, nuclear factor erythroid 2-related factor 2 (NRF2) is essential for regulating hematopoietic processes to maintain blood homeostasis. Herein, we characterized changes in the populations of hematopoietic stem progenitor cells and committed hematopoietic progenitors in the lungs and bone marrow (BM) of wild-type and Nrf2-/- C57BL/6J male mice. PM2.5-induced NRF2-dependent biased hematopoiesis toward myeloid lineage in the lungs and BM generates excessive numbers of various inflammatory immune cells, including neutrophils, monocytes, and platelets. The increased population of these immune cells in the lungs, BM, and peripheral blood has been associated with observed pulmonary fibrosis and high disease risks in an NRF2-dependent manner. Therefore, although NRF2 is a protective factor against stressors, upon PM2.5 exposure, NRF2 is involved in stress myelopoiesis and enhanced PM2.5 toxicity in pulmonary injury, even leading to systemic inflammation.
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Affiliation(s)
- Yuanyuan Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoting Jin
- School of Public Health, Qingdao University, Qingdao 266071, China
| | - Min Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Jie Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environmental, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
| | - Xingchen Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Juan Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunzhen Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
| | - Bin He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environmental, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environmental, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environmental, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Guoliang Liu
- Department of Pulmonary and Critical Care Medicine, National Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- Institute of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Chinese Academy of Medical Sciences, Beijing 100029, China
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environmental, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao 266071, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environmental, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310000, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
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16
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El Bannoudi H, Cornwell M, Luttrell-Williams E, Engel A, Rolling C, Barrett TJ, Izmirly P, Belmont HM, Ruggles K, Clancy R, Buyon J, Berger JS. Platelet LGALS3BP as a Mediator of Myeloid Inflammation in Systemic Lupus Erythematosus. Arthritis Rheumatol 2023; 75:711-722. [PMID: 36245285 DOI: 10.1002/art.42382] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 09/14/2022] [Accepted: 10/11/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Platelets are mediators of inflammation with immune effector cell properties and have been implicated in the pathogenesis of systemic lupus erythematosus (SLE). This study investigated the role of platelet-associated lectin, galactoside-binding, soluble 3 binding protein (LGALS3BP) as a mediator of inflammation in SLE and as a potential biomarker associated with clinical phenotypes. METHODS We performed RNA sequencing on platelets from patients with SLE (n = 54) and on platelets from age-, sex-, and race/ethnicity-matched healthy controls (n = 18) and measured LGALS3BP levels in platelet releasate and in circulating serum. We investigated the association between LGALS3BP levels and the prevalence, disease severity, and clinical phenotypes of SLE and studied platelet-mediated effects on myeloid inflammation. RESULTS Platelets from patients with SLE exhibited increased expression of LGALS3BP (fold change 4.0, adjusted P = 6.02 × 10-11 ). Platelet-released LGALS3BP levels were highly correlated with circulating LGALS3BP (R = 0.69, P < 0.0001), and circulating LGALS3BP levels were correlated with the severity of disease according to the SLE Disease Activity Index (r = 0.32, P = 0.0006). Specifically, circulating LGALS3BP levels were higher in SLE patients with lupus nephritis than in patients with inactive disease (4.0 μg/ml versus 2.3 μg/ml; P < 0.001). Interferon-α induced LGALS3BP transcription and translation in a megakaryoblastic cell line (MEG-01) in a dose-dependent manner. Recombinant LGALS3BP and platelet releasates from SLE patients enhanced proinflammatory cytokine production by macrophages. CONCLUSIONS Our results support that platelets act as potent effector cells that contribute to the pathogenesis of SLE by secreting proinflammatory LGALS3BP, which also represents a novel biomarker of SLE clinical activity.
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Affiliation(s)
- Hanane El Bannoudi
- Department of Medicine, New York University Grossman School of Medicine, New York
| | - MacIntosh Cornwell
- Department of Medicine and Institute for Systems Genetics, New York University Grossman School of Medicine, New York
| | | | - Alexis Engel
- Department of Medicine, New York University Grossman School of Medicine, New York
| | - Christina Rolling
- Department of Medicine, New York University Grossman School of Medicine, New York, and Medizinische Klinik, Universitaetsklinikum Hamburg-Eppendorf
| | - Tessa J Barrett
- Department of Medicine, New York University Grossman School of Medicine, New York
| | - Peter Izmirly
- Department of Medicine, New York University Grossman School of Medicine, New York
| | - H Michael Belmont
- Department of Medicine, New York University Grossman School of Medicine, New York
| | - Kelly Ruggles
- Department of Medicine and Institute for Systems Genetics, New York University Grossman School of Medicine, New York
| | - Robert Clancy
- Department of Medicine, New York University Grossman School of Medicine, New York
| | - Jill Buyon
- Department of Medicine, New York University Grossman School of Medicine, New York
| | - Jeffrey S Berger
- Department of Medicine, New York University Grossman School of Medicine, New York
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17
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Zanza C, Romenskaya T, Racca F, Rocca E, Piccolella F, Piccioni A, Saviano A, Formenti-Ujlaki G, Savioli G, Franceschi F, Longhitano Y. Severe Trauma-Induced Coagulopathy: Molecular Mechanisms Underlying Critical Illness. Int J Mol Sci 2023; 24:ijms24087118. [PMID: 37108280 PMCID: PMC10138568 DOI: 10.3390/ijms24087118] [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: 02/24/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/29/2023] Open
Abstract
Trauma remains one of the leading causes of death in adults despite the implementation of preventive measures and innovations in trauma systems. The etiology of coagulopathy in trauma patients is multifactorial and related to the kind of injury and nature of resuscitation. Trauma-induced coagulopathy (TIC) is a biochemical response involving dysregulated coagulation, altered fibrinolysis, systemic endothelial dysfunction, platelet dysfunction, and inflammatory responses due to trauma. The aim of this review is to report the pathophysiology, early diagnosis and treatment of TIC. A literature search was performed using different databases to identify relevant studies in indexed scientific journals. We reviewed the main pathophysiological mechanisms involved in the early development of TIC. Diagnostic methods have also been reported which allow early targeted therapy with pharmaceutical hemostatic agents such as TEG-based goal-directed resuscitation and fibrinolysis management. TIC is a result of a complex interaction between different pathophysiological processes. New evidence in the field of trauma immunology can, in part, help explain the intricacy of the processes that occur after trauma. However, although our knowledge of TIC has grown, improving outcomes for trauma patients, many questions still need to be answered by ongoing studies.
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Affiliation(s)
- Christian Zanza
- Department of Anesthesia and Critical Care, AON SS. Antonio e Biagio e Cesare Arrigo, 15121 Alessandria, Italy
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Tatsiana Romenskaya
- Department of Physiology and Pharmacology, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Fabrizio Racca
- Department of Anesthesia and Critical Care, AON SS. Antonio e Biagio e Cesare Arrigo, 15121 Alessandria, Italy
| | - Eduardo Rocca
- Department of Anesthesia and Critical Care, AON SS. Antonio e Biagio e Cesare Arrigo, 15121 Alessandria, Italy
| | - Fabio Piccolella
- Department of Anesthesia and Critical Care, AON SS. Antonio e Biagio e Cesare Arrigo, 15121 Alessandria, Italy
| | - Andrea Piccioni
- Department of Emergency Medicine, Polyclinic Agostino Gemelli/IRCCS, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Angela Saviano
- Department of Emergency Medicine, Polyclinic Agostino Gemelli/IRCCS, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - George Formenti-Ujlaki
- Department of Surgery, San Carlo Hospital, ASST Santi Paolo and Carlo, 20142 Milan, Italy
| | - Gabriele Savioli
- Emergency Medicine and Surgery, IRCCS Fondazione Policlinico San Matteo, 27100 Pavia, Italy
| | - Francesco Franceschi
- Department of Emergency Medicine, Polyclinic Agostino Gemelli/IRCCS, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Yaroslava Longhitano
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
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18
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Karaoğullarindan Ü, Üsküdar O, Odabaş E, Saday M, Akkuş G, Delik A, Gümürdülü Y, Kuran S. Is mean platelet volume a simple marker of non-alcoholic fatty liver disease? Indian J Gastroenterol 2023; 42:219-225. [PMID: 37103751 DOI: 10.1007/s12664-022-01330-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 12/18/2022] [Indexed: 04/28/2023]
Abstract
BACKGROUND Due to the increasing prevalence of non-alcoholic fatty liver disease (NAFLD), there was a need to establish non-invasive tests for its detection. Mean platelet volume (MPV) is an inexpensive, practical and easily accessible marker of inflammation in many disorders. Our study was aimed at investigating the relationship between MPV and both NAFLD and liver histology. METHODS Total 290 patients with biopsy-proven NAFLD (n = 124) and 108 control patients were included in the study. To exclude the effect of other diseases on MPV, we included 156 patient controls in our study. Those whohave liver-related diseases and those who use drugs that may cause fatty liver were not included in the study. Liver biopsy was performed for those whose alanine aminotransferase level persisted for >6 months above the upper limits. RESULTS/CONCLUSION We found that MPV was significantly higher in the NAFLD group compared with the control group, and MPV had an independent predictive value for the development of NAFLD. We determined that the number of platelets was significantly lower in the NAFLD group compared with that in the control group. We compared MPV values histologically with both stage and grade in all patients with biopsy-proven NAFLD and found that MPV had a significant positive correlation with stage. We observed a positive correlation between MPV and non-alcoholic steatohepatitis grade, but this was not statistically significant. MPV can be useful because it is simple, easy to measure, cost-effective, and routinely tested in daily practice. MPV can be used as a simple marker of NAFLD and an indicator of fibrosis-stage in NAFLD.
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Affiliation(s)
| | - Oguz Üsküdar
- Gastroenterology Department, Cukurova University, 01060, Adana, Turkey
| | - Emre Odabaş
- Gastroenterology Department, Cukurova University, 01060, Adana, Turkey
| | - Melike Saday
- Gastroenterology Department, Cukurova University, 01060, Adana, Turkey
| | - Gamze Akkuş
- Endocrinology Department, Cukurova University, Adana, Turkey
| | - Anil Delik
- Gastroenterology Department, Cukurova University, 01060, Adana, Turkey
| | - Yüksel Gümürdülü
- Gastroenterology Department, Cukurova University, 01060, Adana, Turkey
| | - Sedef Kuran
- Gastroenterology Department, Cukurova University, 01060, Adana, Turkey
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19
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Yuan H, Liu Y, Zhang J, Dong JF, Zhao Z. Transcription factors in megakaryocytes and platelets. Front Immunol 2023; 14:1140501. [PMID: 36969155 PMCID: PMC10034027 DOI: 10.3389/fimmu.2023.1140501] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/01/2023] [Indexed: 03/11/2023] Open
Abstract
Transcription factors bind promoter or regulatory sequences of a gene to regulate its rate of transcription. However, they are also detected in anucleated platelets. The transcription factors RUNX1, GATA1, STAT3, NFκB, and PPAR have been widely reported to play key roles in the pathophysiology of platelet hyper-reactivity, thrombosis, and atherosclerosis. These non-transcriptional activities are independent of gene transcription or protein synthesis but their underlying mechanisms of action remain poorly defined. Genetic and acquired defects in these transcription factors are associated with the production of platelet microvesicles that are known to initiate and propagate coagulation and to promote thrombosis. In this review, we summarize recent developments in the study of transcription factors in platelet generation, reactivity, and production of microvesicles, with a focus on non-transcriptional activities of selected transcription factors.
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Affiliation(s)
- Hengjie Yuan
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- BloodWorks Research Institute, Seattle, WA, United States
| | - Yafan Liu
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jianning Zhang
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing-fei Dong
- BloodWorks Research Institute, Seattle, WA, United States
- Division of Hematology, Department of Medicine, University of Washington, School of Medicine, Seattle, WA, United States
- *Correspondence: Zilong Zhao, ; Jing-fei Dong,
| | - Zilong Zhao
- Tianjin Institute of Neurology, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- BloodWorks Research Institute, Seattle, WA, United States
- *Correspondence: Zilong Zhao, ; Jing-fei Dong,
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20
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Gauer JS, Duval C, Xu RG, Macrae FL, McPherson HR, Tiede C, Tomlinson D, Watson SP, Ariëns RAS. Fibrin-glycoprotein VI interaction increases platelet procoagulant activity and impacts clot structure. J Thromb Haemost 2023; 21:667-681. [PMID: 36696196 DOI: 10.1016/j.jtha.2022.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 09/14/2022] [Accepted: 09/28/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND The glycoprotein VI (GPVI) signaling pathway was previously reported to direct procoagulant platelet activity through collagen binding. However, the impact of GPVI-fibrin interaction on procoagulant platelet development and how it modulates the clot structure are unknown. OBJECTIVES To determine the effect of GPVI-fibrin interaction on the platelet phenotype and its impact on the clot structure. METHODS Procoagulant platelets in platelet-rich plasma clots were determined by scanning electron microscopy (wild-type and GPVI-deficient murine samples) and confocal microscopy. Procoagulant platelet number, clot density, clot porosity, and clot retraction were determined in platelet-rich plasma or whole blood clots of healthy volunteers in the presence of tyrosine kinase inhibitors (PRT-060318, ibrutinib, and dasatinib) and eptifibatide. RESULTS GPVI-deficient clots showed a higher nonprocoagulant vs procoagulant platelet ratio than wild-type clots. The fiber density and the procoagulant platelet number decreased in the presence of Affimer proteins, inhibiting GPVI-fibrin(ogen) interaction and the tyrosine kinase inhibitors. The effect of GPVI signaling inhibitors on the procoagulant platelet number was exacerbated by eptifibatide. The tyrosine kinase inhibitors led to an increase in clot porosity; however, no differences were observed in the final clot weight, following clot retraction with the tyrosine kinase inhibitors, except for ibrutinib. In the presence of eptifibatide, clot retraction was impaired. CONCLUSION Our findings showed that GPVI-fibrin interaction significantly contributes to the development of procoagulant platelets and that inhibition of GPVI signaling increases clot porosity. Clot contractibility was impaired by the integrin αIIbβ3 and Btk pathway inhibition. Thus, inhibition of GPVI-fibrin interactions can alleviate structural characteristics that contribute to a prothrombotic clot phenotype, having potential important implications for novel antithrombotic interventions.
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Affiliation(s)
- Julia S Gauer
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Cédric Duval
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Rui-Gang Xu
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Fraser L Macrae
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Helen R McPherson
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Christian Tiede
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Darren Tomlinson
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Steve P Watson
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Robert A S Ariëns
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom.
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21
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The platelet to lymphocyte ratio in heart failure: a comprehensive review. ROMANIAN JOURNAL OF INTERNAL MEDICINE = REVUE ROUMAINE DE MEDECINE INTERNE 2023; 61:84-97. [PMID: 36801012 DOI: 10.2478/rjim-2023-0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Indexed: 02/20/2023]
Abstract
Introduction. At the crossroads of heart failure (HF) and systemic inflammation, platelets and lymphocytes are both influenced as well as actively participating in the bidirectional relationship. The platelet to lymphocyte ratio (PLR) could therefore be a marker of severity. This review aimed to assess the role of PLR in HF. Methods. We searched the PubMed (MEDLINE) database using the keywords "platelet", "thrombocyte", "lymphocyte", "heart failure", "cardiomyopathy", "implantable cardioverter defibrillator", "cardiac resynchronization therapy" and "heart transplant". Results. We identified 320 records. 21 studies were included in this review, with a total of 17,060 patients. PLR was associated with age, HF severity, and comorbidity burden. Most studies reported the predictive power for all-cause mortality. Higher PLR was associated with in-hospital and short-term mortality in univariable analysis, however, it was not consistently an independent predictor for this outcome. PLR > 272.9 associated an adjusted HR of 3.22 (95%CI 1.56 - 5.68, p<0.001) for 30-day fatality. During long-term follow-up from 6 months to 5 years, PLR was an independent predictor of mortality in most studies, with cut-off values ranging from > 150 to > 194.97 and adjusted HR from 1.47 (95%CI 1.06 - 2.03, p=0.019) to 5.65 (95%CI 2.47-12.96, p<0.001). PLR > 173.09 had an adjusted OR 2.89 (95%CI 1.17-7.09, p=0.021) for predicting response to cardiac resynchronization therapy. PLR was not associated with outcomes after cardiac transplant or implantable cardioverter-defibrillator. Conclusion: Increased PLR could be an auxiliary biomarker of severity and survival prognosis in HF patients.
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22
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Rolling CC, Sowa MA, Wang TT, Cornwell M, Myndzar K, Schwartz T, El Bannoudi H, Buyon J, Barrett TJ, Berger JS. P2Y12 Inhibition Suppresses Proinflammatory Platelet-Monocyte Interactions. Thromb Haemost 2023; 123:231-244. [PMID: 36630990 PMCID: PMC11007758 DOI: 10.1055/s-0042-1758655] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Monocyte-platelet aggregates (MPAs) represent the crossroads between thrombosis and inflammation, and targeting this axis may suppress thromboinflammation. While antiplatelet therapy (APT) reduces platelet-platelet aggregation and thrombosis, its effects on MPA and platelet effector properties on monocytes are uncertain. OBJECTIVES To analyze the effect of platelets on monocyte activation and APT on MPA and platelet-induced monocyte activation. METHODS Agonist-stimulated whole blood was incubated in the presence of P-selectin, PSGL1, PAR1, P2Y12, GP IIb/IIIa, and COX-1 inhibitors and assessed for platelet and monocyte activity via flow cytometry. RNA-Seq of monocytes incubated with platelets was used to identify platelet-induced monocyte transcripts and was validated by RT-qPCR in monocyte-PR co-incubation ± APT. RESULTS Consistent with a proinflammatory platelet effector role, MPAs were increased in patients with COVID-19. RNA-Seq revealed a thromboinflammatory monocyte transcriptome upon incubation with platelets. Monocytes aggregated to platelets expressed higher CD40 and tissue factor than monocytes without platelets (p < 0.05 for each). Inhibition with P-selectin (85% reduction) and PSGL1 (87% reduction) led to a robust decrease in MPA. P2Y12 and PAR1 inhibition lowered MPA formation (30 and 21% reduction, p < 0.05, respectively) and decreased monocyte CD40 and TF expression, while GP IIb/IIIa and COX1 inhibition had no effect. Pretreatment of platelets with P2Y12 inhibitors reduced the expression of platelet-mediated monocyte transcription of proinflammatory SOCS3 and OSM. CONCLUSIONS: Platelets skew monocytes toward a proinflammatory phenotype. Among traditional APTs, P2Y12 inhibition attenuates platelet-induced monocyte activation.
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Affiliation(s)
- Christina C. Rolling
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
- University Medical Center Hamburg-Eppendorf, Department of Oncology and Hematology, Hamburg, Germany
| | - Marcin A. Sowa
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - Tricia T. Wang
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - MacIntosh Cornwell
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - Khrystyna Myndzar
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - Tamar Schwartz
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - Hanane El Bannoudi
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - Jill Buyon
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - Tessa J. Barrett
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
| | - Jeffrey S. Berger
- Department of Medicine, New York University Grossman School of Medicine, New York, NY
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23
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Pennings GJ, Reddel CJ, Chen VM, Gnanenthiran SR, Kritharides L. Perspective: Collagen induced platelet activation via the GPVI receptor as a primary target of colchicine in cardiovascular disease. Front Cardiovasc Med 2023; 9:1104744. [PMID: 36741844 PMCID: PMC9892722 DOI: 10.3389/fcvm.2022.1104744] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 12/30/2022] [Indexed: 01/20/2023] Open
Abstract
Colchicine has been demonstrated to reduce cardiovascular death, myocardial infarction (MI), ischemic stroke, and ischemia-driven coronary revascularization in people with coronary artery disease (CAD). These reductions were observed even in patients already taking antiplatelet therapy. As well as having anti-inflammatory effects, colchicine demonstrates antiplatelet effects. We propose that colchicine's antiplatelet effects primarily target collagen-induced platelet activation via the collagen receptor, glycoprotein (GP)VI, which is critical for arterial thrombosis formation. In settings such as stroke and MI, GPVI signaling is upregulated. We have demonstrated in vitro that therapeutic concentrations of colchicine lead to a decrease in collagen-induced platelet aggregation and alter GPVI signaling. Clinical studies of colchicine given for 6 months lead to a significant reduction in serum GPVI levels in CAD patients, which may ameliorate thrombotic risk. Future evaluation of the effects of colchicine in clinical trials should include assessment of its effects on collagen-mediated platelet activation, and consideration be given to quantifying the contribution of such antiplatelet effects additional to the known anti-inflammatory effects of colchicine.
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Affiliation(s)
- Gabrielle J. Pennings
- Vascular Biology Group, ANZAC Research Institute, The University of Sydney, Concord, NSW, Australia,Department of Cardiology, Concord Repatriation General Hospital, Concord, NSW, Australia
| | - Caroline J. Reddel
- Vascular Biology Group, ANZAC Research Institute, The University of Sydney, Concord, NSW, Australia
| | - Vivien M. Chen
- Department of Haematology, Concord Repatriation General Hospital, Concord, NSW, Australia,Platelet, Thrombosis Research Laboratory, ANZAC Research Institute, The University of Sydney, Concord, NSW, Australia
| | - Sonali R. Gnanenthiran
- Vascular Biology Group, ANZAC Research Institute, The University of Sydney, Concord, NSW, Australia,Department of Cardiology, Concord Repatriation General Hospital, Concord, NSW, Australia,The George Institute for Global Health, University of New South Wales, Newtown, NSW, Australia
| | - Leonard Kritharides
- Vascular Biology Group, ANZAC Research Institute, The University of Sydney, Concord, NSW, Australia,Department of Cardiology, Concord Repatriation General Hospital, Concord, NSW, Australia,*Correspondence: Leonard Kritharides ✉
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24
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Dourmashkin LH, Lyons B, Hess RS, Walsh K, Silverstein DC. Evaluation of the neutrophil-to-lymphocyte and platelet-to-lymphocyte ratios in critically ill dogs. J Vet Emerg Crit Care (San Antonio) 2023; 33:52-58. [PMID: 36573635 DOI: 10.1111/vec.13269] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 01/24/2022] [Accepted: 02/07/2022] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To evaluate whether the neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are accurate prognostic indicators and correlate with illness severity scores in critically ill dogs. DESIGN Prospective observational study from December 2016 to May 2017. SETTING ICU at a veterinary teaching hospital. ANIMALS Seventy-two client-owned dogs admitted to the ICU with CBCs and abbreviated and complete acute patient physiologic and laboratory evaluation (APPLEfast and APPLEfull ) scores were enrolled. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS The NLR, PLR, APPLEfast , and APPLEfull scores were calculated for each patient on the day of admission. Patients were followed from admission to discharge, and diagnosis, survival, and length of hospitalization were recorded. The patient population was assessed as a whole and as subcategories of patients with neoplastic disease, infectious disease, sepsis, and severe hemorrhage. Dogs with nonseptic disease processes (n = 52) that died had a significantly higher median PLR (P = 0.04) of 441 (range: 106-986) compared to those that survived with a median PLR of 217 (range: 28.4-3225). The PLR was strongly predictive of ICU length of stay in dogs with severe hemorrhage (P = 0.03, Spearman's rho = 0.84). The NLR had a poor positive correlation with APPLEfull score (P = 0.04, Spearman's rho = 0.24), and PLR had a poor negative correlation with APPLEfast score (P = 0.02, Spearman's rho = -0.27). CONCLUSIONS The PLR correlated with ICU length of stay for patients with severe hemorrhage and with survival for patients with nonseptic disease processes. The PLR and NLR correlated with illness severity as measured by APPLE scores. Future studies with larger sample sizes are warranted to further determine the merit of NLR and PLR as indicators of morbidity, mortality, and illness severity.
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Affiliation(s)
- Lisa H Dourmashkin
- Department of Clinical Studies and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Bridget Lyons
- Emergency and Critical Care, Cornell University Veterinary Specialists, Columbia, Missouri, USA
| | - Rebecka S Hess
- Department of Clinical Studies and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Koranda Walsh
- Department of Clinical Studies and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Deborah C Silverstein
- Department of Clinical Studies and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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25
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Qiao C, Jiang P, Yuan X, Su N, Sun P, Lin F. Mammalian STE20-like kinase-1/2 are activated in human platelets stimulated by collagen or thrombin and play a vital role in collagen-activated platelets. Thromb Res 2023; 221:83-91. [PMID: 36495715 DOI: 10.1016/j.thromres.2022.11.025] [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: 07/14/2022] [Revised: 10/31/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Mammalian ste20-like kinases-1/2 (MST1/2), the core kinases of the Hippo pathway, play critical roles in the biology of hematopoietic cells via noncanonical mechanisms and contributes to megakaryocyte differentiation, polyploidization, and maturation to produce platelets. However, the role of MST1/2 in platelet functions remains unclear. MATERIALS AND METHODS In this study, we investigated this topic by determining platelet aggregation and through flow cytometry, ATP release assay, clot retraction assay, and immunoblotting analysis. RESULTS We found that MST1/2 were rapidly phosphorylated and activated upon platelet stimulation by thrombin and collagen. XMU-MP-1, a specific inhibitor of MST1/2, blocks the activation of MST1/2 in platelets. Inhibitor-pretreated platelets showed impaired platelet aggregation and dense-granule secretion mediated by collagen, thrombin, and U46619, whereas ristocetin or ADP mediated platelet aggregation was unaffected by XMU-MP-1. Although platelet-mediated clot retraction was not affected by MST1/2 inhibitors, integrin αIIbβ3 activation was significantly attenuated in XMU-MP-1-treated platelets. Moreover, MST1/2 inhibition significantly attenuated the mobilization of platelet calcium ions and the secretion of α-granules induced by convulxin. CONCLUSIONS This study is the first to demonstrate that MST1/2 play vital roles in human platelets and contributes to collagen-induced platelet activation and aggregation.
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Affiliation(s)
- Congchao Qiao
- Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College, Chengdu, Sichuan 610052, PR China
| | - Peng Jiang
- Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College, Chengdu, Sichuan 610052, PR China
| | - Xin Yuan
- Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College, Chengdu, Sichuan 610052, PR China
| | - Na Su
- Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College, Chengdu, Sichuan 610052, PR China
| | - Pan Sun
- Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College, Chengdu, Sichuan 610052, PR China
| | - Fangzhao Lin
- Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College, Chengdu, Sichuan 610052, PR China.
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26
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Mean platelet volume as a predictive marker of erectile dysfunction: a meta-analysis. Int J Impot Res 2022; 34:746-752. [PMID: 35091698 DOI: 10.1038/s41443-021-00523-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 12/24/2022]
Abstract
Erectile dysfunction (ED) is a global health problem that commonly occurs due to multiple factors, particularly by a vascular abnormality with the activation of platelet (PLT). Mean platelet volume (MPV), a PLT activity marker, has been hypothesized to be associated with ED. The present meta-analysis aims to evaluate the MPV and its contribution to ED diagnosis. A systematic searching to summarize the association of MPV as a predictive marker for ED was conducted on two databases, including MEDLINE (PubMed) and CINAHL (EBSCOhost). We included all English studies that measured MPV levels in ED and non-ED subjects. A total of 168 publications were initially retrieved and screened systematically. 12 studies with 1643 subjects were included for both qualitative and quantitative analysis. The MPV mean difference between ED patients and healthy subjects; vasculogenic and non-vasculogenic ED showed significant differences. Our findings show PLT is associated with the development of ED. Higher MPV level was found in the ED subjects compared to the healthy controls. Nevertheless, the evidence is still limited due to the small number of studies and further investigations are required to support the utilization of MPV for ED diagnosis.
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27
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Marcantoni E, Garshick MS, Schwartz T, Ratnapala N, Cambria M, Dann R, O’Brien M, Heguy A, Berger JS. Antiplatelet Effects of Clopidogrel Vs Aspirin in Virologically Controlled HIV: A Randomized Controlled Trial. JACC Basic Transl Sci 2022; 7:1086-1097. [PMID: 36687270 PMCID: PMC9849466 DOI: 10.1016/j.jacbts.2022.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 11/16/2022]
Abstract
Patients with HIV exhibit platelet activation and increased risk of cardiovascular disease, the prevention of which is not fully known. Fifty-five HIV-positive patients were randomized to clopidogrel, aspirin, or no-treatment for 14 days, and the platelet phenotype and ability to induce endothelial inflammation assessed. Clopidogrel as opposed to aspirin and no-treatment reduced platelet activation (P-selectin and PAC-1 expression). Compared with baseline, platelet-induced proinflammatory transcript expression of cultured endothelial cells were reduced in those assigned to clopidogrel, with no change in the aspirin and no-treatment arms. In HIV, clinical trials of clopidogrel to prevent cardiovascular disease are warranted. (Antiplatelet Therapy in HIV; NCT02559414).
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Affiliation(s)
- Emanuela Marcantoni
- Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York, USA
| | - Michael S. Garshick
- Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York, USA,Center for the Prevention of Cardiovascular Disease, Department of Medicine, New York University School of Medicine, New York, New York, USA
| | - Tamar Schwartz
- Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York, USA
| | - Nicole Ratnapala
- Dartmouth Geisel School of Medicine, Hanover, New Hampshire, USA
| | - Matthew Cambria
- Division of Vascular and Endovascular Surgery, Department of Surgery, New York University School of Medicine, New York, New York, USA
| | - Rebecca Dann
- New York Medical College, Valhalla, New York, USA
| | - Meagan O’Brien
- Regeneron Pharmaceuticals, Inc, Tarrytown, New York, USA
| | - Adriana Heguy
- Genome Technology Center, New York University School of Medicine, New York, New York, USA
| | - Jeffrey S. Berger
- Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York, USA,Center for the Prevention of Cardiovascular Disease, Department of Medicine, New York University School of Medicine, New York, New York, USA,Division of Hematology, Department of Medicine, New York University School of Medicine, New York, New York, USA,Division of Vascular Surgery, Department of Surgery, New York University School of Medicine, New York, New York, USA,Address for correspondence: Dr Jeffrey S. Berger, Center for the Prevention of Cardiovascular Disease, New York University School of Medicine, 435 East 30th Street, 7th Floor, New York, New York 10016, USA. @plateletdoc
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28
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Yang HY, Zhang C, Hu L, Liu C, Pan N, Li M, Han H, Zhou Y, Li J, Zhao LY, Liu YS, Luo BZ, Huang XQ, Lv XF, Li ZC, Li J, Li ZH, Wang RM, Wang L, Guan YY, Liu CZ, Zhang B, Wang GL. Platelet CFTR inhibition enhances arterial thrombosis via increasing intracellular Cl - concentration and activation of SGK1 signaling pathway. Acta Pharmacol Sin 2022; 43:2596-2608. [PMID: 35241769 PMCID: PMC9525590 DOI: 10.1038/s41401-022-00868-9] [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: 10/17/2021] [Accepted: 01/17/2022] [Indexed: 11/09/2022] Open
Abstract
Platelet hyperactivity is essential for thrombus formation in coronary artery diseases (CAD). Dysfunction of the cystic fibrosis transmembrane conductance regulator (CFTR) in patients with cystic fibrosis elevates intracellular Cl- levels ([Cl-]i) and enhanced platelet hyperactivity. In this study, we explored whether alteration of [Cl-]i has a pathological role in regulating platelet hyperactivity and arterial thrombosis formation. CFTR expression was significantly decreased, while [Cl-]i was increased in platelets from CAD patients. In a FeCl3-induced mouse mesenteric arteriole thrombosis model, platelet-specific Cftr-knockout and/or pre-administration of ion channel inhibitor CFTRinh-172 increased platelet [Cl-]i, which accelerated thrombus formation, enhanced platelet aggregation and ATP release, and increased P2Y12 and PAR4 expression in platelets. Conversely, Cftr-overexpressing platelets resulted in subnormal [Cl-]i, thereby decreasing thrombosis formation. Our results showed that clamping [Cl-]i at high levels or Cftr deficiency-induced [Cl-]i increasement dramatically augmented phosphorylation (Ser422) of serum and glucocorticoid-regulated kinase (SGK1), subsequently upregulated P2Y12 and PAR4 expression via NF-κB signaling. Constitutively active mutant S422D SGK1 markedly increased P2Y12 and PAR4 expression. The specific SGK1 inhibitor GSK-650394 decreased platelet aggregation in wildtype and platelet-specific Cftr knockout mice, and platelet SGK1 phosphorylation was observed in line with increased [Cl-]i and decreased CFTR expression in CAD patients. Co-transfection of S422D SGK1 and adenovirus-induced CFTR overexpression in MEG-01 cells restored platelet activation signaling cascade. Our results suggest that [Cl-]i is a novel positive regulator of platelet activation and arterial thrombus formation via the activation of a [Cl-]i-sensitive SGK1 signaling pathway. Therefore, [Cl-]i in platelets is a novel potential biomarker for platelet hyperactivity, and CFTR may be a potential therapeutic target for platelet activation in CAD.
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Affiliation(s)
- Han-Yan Yang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chao Zhang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Liang Hu
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Chang Liu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Ni Pan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center affiliated to Guangzhou Medical College, Guangzhou, 510623, China
| | - Mei Li
- VIP Healthcare Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Hui Han
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yi Zhou
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Jie Li
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Li-Yan Zhao
- Department of Pharmacy, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Yao-Sheng Liu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bing-Zheng Luo
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Xiong-Qing Huang
- Department of Anesthesiology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiao-Fei Lv
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zi-Cheng Li
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jun Li
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhi-Hong Li
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Ruo-Mei Wang
- School of Computer Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, China
| | - Li Wang
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Yong-Yuan Guan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Can-Zhao Liu
- Department of Cardiovascular Medicine, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
| | - Bin Zhang
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China.
| | - Guan-Lei Wang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.
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29
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Virgolici B, Mohora M, Virgolici H, Posea M, Martin R. HEMATOLOGICAL INDICES RELATED TO VITAMIN D DEFICIENCY IN OBESE CHILDREN. ACTA ENDOCRINOLOGICA (BUCHAREST, ROMANIA : 2005) 2022; 18:488-493. [PMID: 37152869 PMCID: PMC10162821 DOI: 10.4183/aeb.2022.488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Introduction Vitamin D is involved in differentiation and induction of erythropoiesis in bone marrow cells. Aim We compared the serum 25(OH) vitamin D level in obese children versus control and found correlations between vitamin D level and hematological indices in obese children. Materials and methods 25 overweight and obese patients and 15 normal weight children were enrolled in an observational study . Results In obese children, the serum level of 25(OH) vitamin D was significantly (p<0.04) lower (20.60 ng/mL) compared with the value from normal weight ones (25.63 ng/mL) and the body fat percentage BFP was higher. We found a positive correlation (r=0.44, p<0.05) between serum vitamin D and hemoglobin level and a negative one between serum vitamin D and the number of platelets (r= -0.43, p<0.05). Also, the serum iron was at the lower normal limit in the obese children and negatively correlated with the percent of the body fat (r= -0,62, p<0.05). Conclusion Obese children have vitamin D deficiency. The hemoglobin level and the number of platelets are correlated with the serum level of 25(OH) vitamin D. Supplements with vitamin D may have pleiotropic effects, including those on bone marrow activity.
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Affiliation(s)
- B. Virgolici
- “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
| | - M. Mohora
- “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
| | - H.M. Virgolici
- “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
| | - M. Posea
- “Diet4life” Nutrition and Diabetes Clinic, Bucharest, Romania
| | - R.E. Martin
- “Colentina” Clinical Hospital, Bucharest, Romania
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30
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Abstract
COVID-19 is a primary respiratory illness that is frequently complicated by systemic involvement of the vasculature. Vascular involvement leads to an array of complications ranging from thrombosis to pulmonary edema secondary to loss of barrier function. This review will address the vasculopathy of COVID-19 with a focus on the role of the endothelium in orchestrating the systemic response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. The endothelial receptor systems and molecular pathways activated in the setting of COVID-19 and the consequences of these inflammatory and prothrombotic changes on endothelial cell function will be discussed. The sequelae of COVID-19 vascular involvement at the level of organ systems will also be addressed, with an emphasis on the pulmonary vasculature but with consideration of effects on other vascular beds. The dramatic changes in endothelial phenotypes associated with COVID-19 has enabled the identification of biomarkers that could help guide therapy and predict outcomes. Knowledge of vascular pathogenesis in COVID-19 has also informed therapeutic approaches that may control its systemic sequelae. Because our understanding of vascular response in COVID-19 continues to evolve, we will consider areas of controversy, such as the extent to which SARS-CoV-2 directly infects endothelium and the degree to which vascular responses to SARS-CoV-2 are unique or common to those of other viruses capable of causing severe respiratory disease. This conceptual framework describing how SARS-CoV-2 infection affects endothelial inflammation, prothrombotic transformation, and barrier dysfunction will provide a context for interpreting new information as it arises addressing the vascular complications of COVID-19.
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Affiliation(s)
| | | | - Alec A Schmaier
- Division of Hemostasis and Thrombosis and
- Division of Cardiovascular Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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31
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Desai C, Koupenova M, Machlus KR, Sen Gupta A. Beyond the thrombus: Platelet-inspired nanomedicine approaches in inflammation, immune response, and cancer. J Thromb Haemost 2022; 20:1523-1534. [PMID: 35441793 PMCID: PMC9321119 DOI: 10.1111/jth.15733] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 12/03/2022]
Abstract
The traditional role of platelets is in the formation of blood clots for physiologic (e.g., in hemostasis) or pathologic (e.g., in thrombosis) functions. The cellular and subcellular mechanisms and signaling in platelets involved in these functions have been extensively elucidated and new knowledge continues to emerge, resulting in various therapeutic developments in this area for the management of hemorrhagic or thrombotic events. Nanomedicine, a field involving design of nanoparticles with unique biointeractive surface modifications and payload encapsulation for disease-targeted drug delivery, has become an important component of such therapeutic development. Beyond their traditional role in blood clotting, platelets have been implicated to play crucial mechanistic roles in other diseases including inflammation, immune response, and cancer, via direct cellular interactions, as well as secretion of soluble factors that aid in the disease microenvironment. To date, the development of nanomedicine systems that leverage these broader roles of platelets has been limited. Additionally, another exciting area of research that has emerged in recent years is that of platelet-derived extracellular vesicles (PEVs) that can directly and indirectly influence physiological and pathological processes. This makes PEVs a unique paradigm for platelet-inspired therapeutic design. This review aims to provide mechanistic insight into the involvement of platelets and PEVs beyond hemostasis and thrombosis, and to discuss the current state of the art in the development of platelet-inspired therapeutic technologies in these areas, with an emphasis on future opportunities.
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Affiliation(s)
- Cian Desai
- Department of PharmacologyCase Western Reserve UniversityClevelandOhioUSA
| | - Milka Koupenova
- Division of Cardiovascular MedicineDepartment of MedicineUniversity of Massachusetts Chan Medical SchoolWorcesterMassachusettsUSA
| | - Kellie R. Machlus
- Department of SurgeryVascular Biology ProgramBoston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Anirban Sen Gupta
- Department of PharmacologyCase Western Reserve UniversityClevelandOhioUSA
- Department of Biomedical EngineeringCase Western Reserve UniversityClevelandOhioUSA
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32
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Ozawa K, Muller MA, Varlamov O, Hagen MW, Packwood W, Morgan TK, Xie A, López CS, Chung D, Chen J, López JA, Lindner JR. Reduced Proteolytic Cleavage of von Willebrand Factor Leads to Aortic Valve Stenosis and Load-Dependent Ventricular Remodeling. JACC Basic Transl Sci 2022; 7:642-655. [PMID: 35958695 PMCID: PMC9357566 DOI: 10.1016/j.jacbts.2022.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/03/2022] [Accepted: 02/17/2022] [Indexed: 11/28/2022]
Abstract
We hypothesized that excess endothelial-associated von Willebrand factor (vWF) and secondary platelet adhesion contribute to aortic valve stenosis (AS). We studied hyperlipidemic mice lacking ADAMTS13 (LDLR -/- AD13 -/- ), which cleaves endothelial-associated vWF multimers. On echocardiography and molecular imaging, LDLR -/- AD13 -/- compared with control strains had increased aortic endothelial vWF and platelet adhesion and developed hemodynamically significant AS, arterial stiffening, high valvulo-aortic impedance, and secondary load-dependent reduction in LV systolic function. Histology revealed leaflet thickening and calcification with valve interstitial cell myofibroblastic and osteogenic transformation, and evidence for TGFβ1 pathway activation. We conclude that valve leaflet endothelial vWF-platelet interactions promote AS through juxtacrine platelet signaling.
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Affiliation(s)
- Koya Ozawa
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Matthew A. Muller
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Oleg Varlamov
- Oregon National Primate Research Center, Oregon Health & Science University, Portland, Oregon, USA
| | - Matthew W. Hagen
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - William Packwood
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Terry K. Morgan
- Department of Pathology, Oregon Health & Science University, Portland, Oregon, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
| | - Aris Xie
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Claudia S. López
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
| | | | | | | | - Jonathan R. Lindner
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon, USA
- Oregon National Primate Research Center, Oregon Health & Science University, Portland, Oregon, USA
- Address for correspondence: Dr Jonathan R. Lindner, Cardiovascular Division, UHN-62, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, USA. @JLindnerMD
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33
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18F Site-Specific Labelling of a Single-Chain Antibody against Activated Platelets for the Detection of Acute Thrombosis in Positron Emission Tomography. Int J Mol Sci 2022; 23:ijms23136886. [PMID: 35805892 PMCID: PMC9267009 DOI: 10.3390/ijms23136886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/12/2022] [Accepted: 06/14/2022] [Indexed: 12/10/2022] Open
Abstract
Positron emission tomography is the imaging modality of choice when it comes to the high sensitivity detection of key markers of thrombosis and inflammation, such as activated platelets. We, previously, generated a fluorine-18 labelled single-chain antibody (scFv) against ligand-induced binding sites (LIBS) on activated platelets, binding it to the highly abundant platelet glycoprotein integrin receptor IIb/IIIa. We used a non-site-specific bio conjugation approach with N-succinimidyl-4-[18F]fluorobenzoate (S[18F]FB), leading to a mixture of products with reduced antigen binding. In the present study, we have developed and characterised a novel fluorine-18 PET radiotracer, based on this antibody, using site-specific bio conjugation to engineer cysteine residues with N-[2-(4-[18F]fluorobenzamido)ethyl]maleimide ([18F]FBEM). ScFvanti-LIBS and control antibody mut-scFv, with engineered C-terminal cysteine, were reduced, and then, they reacted with N-[2-(4-[18F]fluorobenzamido)ethyl]maleimide ([18F]FBEM). Radiolabelled scFv was injected into mice with FeCl3-induced thrombus in the left carotid artery. Clots were imaged in a PET MR imaging system, and the amount of radioactivity in major organs was measured using an ionisation chamber and image analysis. Assessment of vessel injury, as well as the biodistribution of the radiolabelled scFv, was studied. In the in vivo experiments, we found uptake of the targeted tracer in the injured vessel, compared with the non-injured vessel, as well as a high uptake of both tracers in the kidney, lung, and muscle. As expected, both tracers cleared rapidly via the kidney. Surprisingly, a large quantity of both tracers was taken up by organs with a high glutathione content, such as the muscle and lung, due to the instability of the maleimide cysteine bond in vivo, which warrants further investigations. This limits the ability of the novel antibody radiotracer 18F-scFvanti-LIBS to bind to the target in vivo and, therefore, as a useful agent for the sensitive detection of activated platelets. We describe the first fluorine-18 variant of the scFvanti-LIBS against activated platelets using site-specific bio conjugation.
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34
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Li P, Hu J, Zhao H, Feng J, Chai B. Multi-Omics Reveals Inhibitory Effect of Baicalein on Non-Alcoholic Fatty Liver Disease in Mice. Front Pharmacol 2022; 13:925349. [PMID: 35784718 PMCID: PMC9240231 DOI: 10.3389/fphar.2022.925349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/06/2022] [Indexed: 12/20/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, whose etiology is poorly understood. Accumulating evidence indicates that gut microbiota plays an important role in the occurrence and progression of various human diseases, including NAFLD. In this study, NAFLD mouse models were established by feeding a high-fat diet (HFD). Baicalein, a natural flavonoid with multiple biological activities, was administered by gavage, and its protective effect on NAFLD was analyzed by histopathological and blood factor analysis. Gut microbiota analysis demonstrated that baicalein could remodel the overall structure of the gut microbiota from NAFLD model mice, especially Anaerotruncus, Lachnoclostridium, and Mucispirillum. Transcriptomic analysis showed baicalein restored the expressions of numerous genes that were upregulated in hepatocytes of NAFLD mice, such as Apoa4, Pla2g12a, Elovl7, Slc27a4, Hilpda, Fabp4, Vldlr, Gpld1, and Apom. Metabolomics analysis proved that baicalein mainly regulated the processes associated with lipid metabolism, such as alpha-Linolenic acid, 2-Oxocarboxylic acid, Pantothenate and CoA biosynthesis, and bile secretion. Multi-omics analysis revealed that numerous genes regulated by baicalein were significantly correlated with pathways related to lipid metabolism and biosynthesis and secrection of bile acid, and baicalein might affect lipid metabolism in liver via regulating the ecological structure of gut microbiota in NAFLD mice. Our results elucidated the correlated network among diet, gut microbiota, metabolomic, and transcriptional profiling in the liver. This knowledge may help explore novel therapeutic approaches against NAFLD.
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Affiliation(s)
- Ping Li
- Institute of Loess Plateau, Shanxi University, Taiyuan, China
- Department of Biological Science and Technology, Jinzhong University, Jinzhong, China
| | - Jianran Hu
- Department of Biological Science and Technology, Jinzhong University, Jinzhong, China
| | - Hongmei Zhao
- Department of Biological Science and Technology, Jinzhong University, Jinzhong, China
| | - Jing Feng
- Department of Gastroenterology, Shanxi Provincial People’s Hospital Affiliated to Shanxi Medical University, Taiyuan, China
| | - Baofeng Chai
- Institute of Loess Plateau, Shanxi University, Taiyuan, China
- *Correspondence: Baofeng Chai,
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35
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Sagar RC, Ajjan RA, Naseem KM. Non-Traditional Pathways for Platelet Pathophysiology in Diabetes: Implications for Future Therapeutic Targets. Int J Mol Sci 2022; 23:ijms23094973. [PMID: 35563363 PMCID: PMC9104718 DOI: 10.3390/ijms23094973] [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: 04/07/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/23/2022] Open
Abstract
Cardiovascular complications remain the leading cause of morbidity and mortality in individuals with diabetes, driven by interlinked metabolic, inflammatory, and thrombotic changes. Hyperglycaemia, insulin resistance/deficiency, dyslipidaemia, and associated oxidative stress have been linked to abnormal platelet function leading to hyperactivity, and thus increasing vascular thrombotic risk. However, emerging evidence suggests platelets also contribute to low-grade inflammation and additionally possess the ability to interact with circulating immune cells, further driving vascular thrombo-inflammatory pathways. This narrative review highlights the role of platelets in inflammatory and immune processes beyond typical thrombotic effects and the impact these mechanisms have on cardiovascular disease in diabetes. We discuss pathways for platelet-induced inflammation and how platelet reprogramming in diabetes contributes to the high cardiovascular risk that characterises this population. Fully understanding the mechanistic pathways for platelet-induced vascular pathology will allow for the development of more effective management strategies that deal with the causes rather than the consequences of platelet function abnormalities in diabetes.
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36
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Biomarkers in Patients with Left Ventricular Assist Device: An Insight on Current Evidence. Biomolecules 2022; 12:biom12020334. [PMID: 35204834 PMCID: PMC8869703 DOI: 10.3390/biom12020334] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/10/2022] [Accepted: 02/16/2022] [Indexed: 01/31/2023] Open
Abstract
Left ventricular assist devices (LVADs) have been representing a cornerstone therapy for patients with end-stage heart failure during the last decades. However, their use induces several pathophysiological modifications which are partially responsible for the complications that typically characterize these patients, such as right ventricular failure, thromboembolic events, as well as bleedings. During the last years, biomarkers involved in the pathways of neurohormonal activation, myocardial injury, adverse remodeling, oxidative stress and systemic inflammation have raised attention. The search and analysis of potential biomarkers in LVAD patients could lead to the identification of a subset of patients with an increased risk of developing these adverse events. This could then promote a closer follow-up as well as therapeutic modifications. Furthermore, it might highlight some new therapeutic pharmacological targets that could lead to improved long-term survival. The aim of this review is to provide current evidence on the role of different biomarkers in patients with LVAD, in particular highlighting their possible implications in clinical practice.
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37
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Krishnan A, Thomas S. Toward platelet transcriptomics in cancer diagnosis, prognosis and therapy. Br J Cancer 2022; 126:316-322. [PMID: 34811507 PMCID: PMC8810955 DOI: 10.1038/s41416-021-01627-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/26/2021] [Accepted: 11/02/2021] [Indexed: 12/29/2022] Open
Abstract
Widespread adoption of next-generation techniques such as RNA-sequencing (RNA-seq) has enabled research examining the transcriptome of anucleate blood platelets in health and disease, thus revealing a rich platelet transcriptomic signature that is reprogrammed in response to disease. Platelet signatures not only capture information from parent megakaryocytes and progenitor hematopoietic stem cells but also the bone marrow microenvironment, and underlying disease states. In cancer, the substantive body of research in patients with solid tumours has identified distinct signatures in 'tumour-educated platelets', reflecting influences of the tumour, stroma and vasculature on splicing, sequestration of tumour-derived RNAs, and potentially cytokine and microvesicle influences on megakaryocytes. More recently, platelet RNA expression has emerged as a highly sensitive approach to profiling chronic progressive haematologic malignancies, where the combination of large data cohorts and machine-learning algorithms enables precise feature selection and potential prognostication. Despite these advances, however, our ability to translate platelet transcriptomics toward clinical diagnostic and prognostic efforts remains limited. In this Perspective, we present a few actionable steps for our basic, translational and clinical research communities in advancing the utility of the platelet transcriptome as a highly sensitive biomarker in cancer and collectively enable efforts toward clinical translation and patient benefit.
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Affiliation(s)
- Anandi Krishnan
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.
- Stanford Cancer Institute, Stanford University, Stanford, CA, USA.
| | - Sally Thomas
- Department of Oncology and Metabolism, University of Sheffield Medical School, Sheffield, UK
- Department of Haematology, Sheffield Teaching Hospitals NHS Trust, Sheffield, UK
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38
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Thanou K, Kapsi A, Petsas AS, Dimou C, Koutelidakis A, Nasopoulou C, Skalkos D, Karantonis HC. Ultrasound‐assisted extraction of Texas variety almond oil and in vitro evaluation of its health beneficial bioactivities. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Konstantina Thanou
- School of the Environment Department of Food Science and Nutrition Laboratory of Food Chemistry, Biochemistry and Technology University of The Aegean Myrina‐Lemnos Greece
| | - Archontia Kapsi
- School of the Environment Department of Food Science and Nutrition Laboratory of Food Chemistry, Biochemistry and Technology University of The Aegean Myrina‐Lemnos Greece
| | - Andreas S. Petsas
- School of the Environment Department of Food Science and Nutrition Laboratory of Food Chemistry, Biochemistry and Technology University of The Aegean Myrina‐Lemnos Greece
| | - Charalampia Dimou
- School of the Environment Department of Food Science and Nutrition Laboratory of Nutrition and Public Health University of The Aegean Myrina‐Lemnos Greece
| | - Antonios Koutelidakis
- School of the Environment Department of Food Science and Nutrition Laboratory of Nutrition and Public Health University of The Aegean Myrina‐Lemnos Greece
| | - Constantina Nasopoulou
- School of the Environment Department of Food Science and Nutrition Laboratory of Food Chemistry, Biochemistry and Technology University of The Aegean Myrina‐Lemnos Greece
| | - Dimitris Skalkos
- School of Sciences Department of Chemistry Laboratory of Food Chemistry University of Ioannina Ioannina Greece
| | - Haralabos C. Karantonis
- School of the Environment Department of Food Science and Nutrition Laboratory of Food Chemistry, Biochemistry and Technology University of The Aegean Myrina‐Lemnos Greece
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39
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Thomas S, Krishnan A. Platelet Heterogeneity in Myeloproliferative Neoplasms. Arterioscler Thromb Vasc Biol 2021; 41:2661-2670. [PMID: 34615371 PMCID: PMC8551046 DOI: 10.1161/atvbaha.121.316373] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 09/20/2021] [Indexed: 12/24/2022]
Abstract
Myeloproliferative neoplasms (MPNs) are a group of malignant disorders of the bone marrow where a dysregulated balance between proliferation and differentiation gives rise to abnormal numbers of mature blood cells. MPNs encompass a spectrum of disease entities with progressively more severe clinical features, including complications with thrombosis and hemostasis and an increased propensity for transformation to acute myeloid leukemia. There is an unmet clinical need for markers of disease progression. Our understanding of the precise mechanisms that influence pathogenesis and disease progression has been limited by access to disease-specific cells as biosources. Here, we review the landscape of MPN pathology and present blood platelets as potential candidates for disease-specific understanding. We conclude with our recent work discovering progressive platelet heterogeneity by subtype in a large clinical cohort of patients with MPN.
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Affiliation(s)
- Sally Thomas
- Department of Oncology and Metabolism, University of Sheffield and Department of Haematology, Royal Hallamshire Hospital, United Kingdom (S.T.)
| | - Anandi Krishnan
- Department of Pathology, Stanford University School of Medicine, CA (A.K.)
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40
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Shen Z, Du W, Perkins C, Fechter L, Natu V, Maecker H, Rowley J, Gotlib J, Zehnder J, Krishnan A. Platelet transcriptome identifies progressive markers and potential therapeutic targets in chronic myeloproliferative neoplasms. Cell Rep Med 2021; 2:100425. [PMID: 34755136 PMCID: PMC8561315 DOI: 10.1016/j.xcrm.2021.100425] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 08/08/2021] [Accepted: 09/23/2021] [Indexed: 12/11/2022]
Abstract
Predicting disease progression remains a particularly challenging endeavor in chronic degenerative disorders and cancer, thus limiting early detection, risk stratification, and preventive interventions. Here, profiling the three chronic subtypes of myeloproliferative neoplasms (MPNs), we identify the blood platelet transcriptome as a proxy strategy for highly sensitive progression biomarkers that also enables prediction of advanced disease via machine-learning algorithms. The MPN platelet transcriptome reveals an incremental molecular reprogramming that is independent of patient driver mutation status or therapy. Subtype-specific markers offer mechanistic and therapeutic insights, and highlight impaired proteostasis and a persistent integrated stress response. Using a LASSO model with validation in two independent cohorts, we identify the advanced subtype MF at high accuracy and offer a robust progression signature toward clinical translation. Our platelet transcriptome snapshot of chronic MPNs demonstrates a proof-of-principle for disease risk stratification and progression beyond genetic data alone, with potential utility in other progressive disorders.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Blood Platelets/metabolism
- Blood Platelets/pathology
- Cellular Reprogramming
- Child
- Child, Preschool
- Cohort Studies
- Diagnosis, Differential
- Disease Progression
- Female
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Humans
- Male
- Middle Aged
- Polycythemia Vera/diagnosis
- Polycythemia Vera/genetics
- Polycythemia Vera/metabolism
- Polycythemia Vera/pathology
- Primary Myelofibrosis/diagnosis
- Primary Myelofibrosis/genetics
- Primary Myelofibrosis/metabolism
- Primary Myelofibrosis/pathology
- Proteostasis/genetics
- Risk Assessment
- Thrombocythemia, Essential/diagnosis
- Thrombocythemia, Essential/genetics
- Thrombocythemia, Essential/metabolism
- Thrombocythemia, Essential/pathology
- Transcriptome
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Affiliation(s)
- Zhu Shen
- Department of Statistics, Stanford University, Stanford, CA, USA
| | - Wenfei Du
- Department of Statistics, Stanford University, Stanford, CA, USA
| | - Cecelia Perkins
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Lenn Fechter
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Vanita Natu
- Stanford Functional Genomics Facility, Stanford University School of Medicine, Stanford, CA, USA
| | - Holden Maecker
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jesse Rowley
- Department of Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - Jason Gotlib
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - James Zehnder
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University, Stanford, CA, USA
| | - Anandi Krishnan
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University, Stanford, CA, USA
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41
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Barrett TJ, Cornwell M, Myndzar K, Rolling CC, Xia Y, Drenkova K, Biebuyck A, Fields AT, Tawil M, Luttrell-Williams E, Yuriditsky E, Smith G, Cotzia P, Neal MD, Kornblith LZ, Pittaluga S, Rapkiewicz AV, Burgess HM, Mohr I, Stapleford KA, Voora D, Ruggles K, Hochman J, Berger JS. Platelets amplify endotheliopathy in COVID-19. SCIENCE ADVANCES 2021; 7:eabh2434. [PMID: 34516880 PMCID: PMC8442885 DOI: 10.1126/sciadv.abh2434] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/19/2021] [Indexed: 05/08/2023]
Abstract
Given the evidence for a hyperactive platelet phenotype in COVID-19, we investigated effector cell properties of COVID-19 platelets on endothelial cells (ECs). Integration of EC and platelet RNA sequencing revealed that platelet-released factors in COVID-19 promote an inflammatory hypercoagulable endotheliopathy. We identified S100A8 and S100A9 as transcripts enriched in COVID-19 platelets and were induced by megakaryocyte infection with SARS-CoV-2. Consistent with increased gene expression, the heterodimer protein product of S100A8/A9, myeloid-related protein (MRP) 8/14, was released to a greater extent by platelets from COVID-19 patients relative to controls. We demonstrate that platelet-derived MRP8/14 activates ECs, promotes an inflammatory hypercoagulable phenotype, and is a significant contributor to poor clinical outcomes in COVID-19 patients. Last, we present evidence that targeting platelet P2Y12 represents a promising candidate to reduce proinflammatory platelet-endothelial interactions. Together, these findings demonstrate a previously unappreciated role for platelets and their activation-induced endotheliopathy in COVID-19.
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Affiliation(s)
- Tessa J. Barrett
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - MacIntosh Cornwell
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- Institute for Systems Genetics, New York University Grossman School of Medicine, New York, NY, USA
| | - Khrystyna Myndzar
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Christina C. Rolling
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Yuhe Xia
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Kamelia Drenkova
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Antoine Biebuyck
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Alexander T. Fields
- Department of Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Michael Tawil
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | | | - Eugene Yuriditsky
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Grace Smith
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Paolo Cotzia
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
- Center for Biospecimen Research, New York University Grossman School of Medicine, New York, NY, USA
| | - Matthew D. Neal
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lucy Z. Kornblith
- Department of Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Stefania Pittaluga
- Department of Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Amy V. Rapkiewicz
- Department of Pathology, NYU Langone Long Island Hospital, New York University Langone Health, Mineola, NY, USA
| | - Hannah M. Burgess
- Department of Microbiology, New York University Langone Health, New York, NY, USA
| | - Ian Mohr
- Department of Microbiology, New York University Langone Health, New York, NY, USA
| | | | - Deepak Voora
- Department of Medicine, Duke Center for Applied Genomics & Precision Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Kelly Ruggles
- Institute for Systems Genetics, New York University Grossman School of Medicine, New York, NY, USA
| | - Judith Hochman
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Jeffrey S. Berger
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- Department of Surgery, New York University Langone Health, New York, NY, USA
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42
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Jo JK, Seo SH, Park SE, Kim HW, Kim EJ, Kim JS, Pyo JY, Cho KM, Kwon SJ, Park DH, Son HS. Gut Microbiome and Metabolome Profiles Associated with High-Fat Diet in Mice. Metabolites 2021; 11:metabo11080482. [PMID: 34436423 PMCID: PMC8398001 DOI: 10.3390/metabo11080482] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 12/11/2022] Open
Abstract
Obesity can be caused by microbes producing metabolites; it is thus important to determine the correlation between gut microbes and metabolites. This study aimed to identify gut microbiota-metabolomic signatures that change with a high-fat diet and understand the underlying mechanisms. To investigate the profiles of the gut microbiota and metabolites that changed after a 60% fat diet for 8 weeks, 16S rRNA gene amplicon sequencing and gas chromatography-mass spectrometry (GC-MS)-based metabolomic analyses were performed. Mice belonging to the HFD group showed a significant decrease in the relative abundance of Bacteroidetes but an increase in the relative abundance of Firmicutes compared to the control group. The relative abundance of Firmicutes, such as Lactococcus, Blautia, Lachnoclostridium, Oscillibacter, Ruminiclostridium, Harryflintia, Lactobacillus, Oscillospira, and Erysipelatoclostridium, was significantly higher in the HFD group than in the control group. The increased relative abundance of Firmicutes in the HFD group was positively correlated with fecal ribose, hypoxanthine, fructose, glycolic acid, ornithine, serum inositol, tyrosine, and glycine. Metabolic pathways affected by a high fat diet on serum were involved in aminoacyl-tRNA biosynthesis, glycine, serine and threonine metabolism, cysteine and methionine metabolism, glyoxylate and dicarboxylate metabolism, and phenylalanine, tyrosine, and trypto-phan biosynthesis. This study provides insight into the dysbiosis of gut microbiota and metabolites altered by HFD and may help to understand the mechanisms underlying obesity mediated by gut microbiota.
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Affiliation(s)
- Jae-Kwon Jo
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea; (J.-K.J.); (S.-E.P.); (H.-W.K.)
| | | | - Seong-Eun Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea; (J.-K.J.); (S.-E.P.); (H.-W.K.)
| | - Hyun-Woo Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea; (J.-K.J.); (S.-E.P.); (H.-W.K.)
| | - Eun-Ju Kim
- College of Korean Medicine, Dongshin University, Naju 58245, Korea; (E.-J.K.); (J.-S.K.)
| | - Jeong-Sang Kim
- College of Korean Medicine, Dongshin University, Naju 58245, Korea; (E.-J.K.); (J.-S.K.)
| | - Ju-Yeon Pyo
- Department of Pathology, Catholic Kwandong University International St. Mary’s Hospital, Incheon 22711, Korea;
| | - Kwang-Moon Cho
- AccuGene Inc., Incheon 22006, Korea; (K.-M.C.); (S.-J.K.)
| | - Sun-Jae Kwon
- AccuGene Inc., Incheon 22006, Korea; (K.-M.C.); (S.-J.K.)
| | - Dae-Hun Park
- College of Korean Medicine, Dongshin University, Naju 58245, Korea; (E.-J.K.); (J.-S.K.)
- Correspondence: (D.-H.P.); (H.-S.S.); Tel.: +82-61-330-3587 (D.-H.P.); +82-2-3290-3053 (H.-S.S.)
| | - Hong-Seok Son
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea; (J.-K.J.); (S.-E.P.); (H.-W.K.)
- Correspondence: (D.-H.P.); (H.-S.S.); Tel.: +82-61-330-3587 (D.-H.P.); +82-2-3290-3053 (H.-S.S.)
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43
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Liu G, Yuan Z, Tian X, Xiong X, Guo F, Lin Z, Qin Z. Pimpinellin Inhibits Collagen-induced Platelet Aggregation and Activation Through Inhibiting Granule Secretion and PI3K/Akt Pathway. Front Pharmacol 2021; 12:706363. [PMID: 34366861 PMCID: PMC8339208 DOI: 10.3389/fphar.2021.706363] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/07/2021] [Indexed: 01/21/2023] Open
Abstract
Pimpinellin is a coumarin-like compound extracted from the root of Toddalia asiatica. Its effects on platelet function has not been investigated. This study found that pimpinellin pretreatment effectively inhibited collagen-induced platelet aggregation, but did not alter ADP- and thrombin-induced aggregation. Platelets pretreated with pimpinellin showed reduced α granule (CD62) level and secretion of dense granule (ATP release). Pimpinellin-treated platelets also exhibited decreased clot reaction and TxB2 production. Pimpinellin pretreatment suppressed adhesion and spreading of human platelets on the fibrinogen coated surface. Analysis of tail bleeding time of mice administered with pimpinellin (40 mg/kg) revealed that pimpinellin did not change tail bleeding time significantly, number of blood cells, and APTT and PT levels. Pimpinellin inhibited collagen-induced ex vivo aggregation of mice platelets. Immunoblotting results showed that pimpinellin suppressed collagen-induced phosphorylation of PI3K-Akt-Gsk3β and PKC/MAPK in platelets.
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Affiliation(s)
- Gang Liu
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China.,Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
| | - Zhaowei Yuan
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Xiaoyun Tian
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Xiuqin Xiong
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Fang Guo
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Zihan Lin
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, China
| | - Zhen Qin
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
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44
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BCL-XL antagonism selectively reduces neutrophil life span within inflamed tissues without causing neutropenia. Blood Adv 2021; 5:2550-2562. [PMID: 34100903 DOI: 10.1182/bloodadvances.2020004139] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/09/2021] [Indexed: 12/17/2022] Open
Abstract
Neutrophils help to clear pathogens and cellular debris, but can also cause collateral damage within inflamed tissues. Prolonged neutrophil residency within an inflammatory niche can exacerbate tissue pathology. Using both genetic and pharmacological approaches, we show that BCL-XL is required for the persistence of neutrophils within inflammatory sites in mice. We demonstrate that a selective BCL-XL inhibitor (A-1331852) has therapeutic potential by causing apoptosis in inflammatory human neutrophils ex vivo. Moreover, in murine models of acute and chronic inflammatory disease, it reduced inflammatory neutrophil numbers and ameliorated tissue pathology. In contrast, there was minimal effect on circulating neutrophils. Thus, we show a differential survival requirement in activated neutrophils for BCL-XL and reveal a new therapeutic approach to neutrophil-mediated diseases.
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45
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Chang TI, Wu X, Boström KI, Tran HA, Couto-Souza PH, Friedlander AH. Panoramic imaged carotid atheromas are associated with increased neutrophil count: both validated, independent predictors of near-term myocardial infarction. Dentomaxillofac Radiol 2021; 50:20210045. [PMID: 34111366 DOI: 10.1259/dmfr.20210045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Panoramic images (PXs) demonstrating calcified carotid artery atheromas (CCAAs) are associated with heightened risk of near-term myocardial infarction (MI). Elevated neutrophil counts (NC) within normal range 2,500-6,000 per mm3 are likewise associated with future MI signaling the role neutrophils play in the chronic inflammation process underlying coronary artery atherogenesis. We determined if CCAAs on PXs are associated with increased NC. METHODS Investigators implemented a retrospective study of PXs and accompanying medical records of white males ≥ 65 years treated by a VA dental service. Two groups (N = 60 each) were constituted, one with atheromas (CCAA+) and one without (CCAA-). Predictor variable was CCAA + and outcome variable was NC. Bootstrapping analysis determined the difference in mean NCs between two groups, significance set at ≤0.05. RESULTS The study group of (CCAA+) (mean age 75.9; range 69-91 years) demonstrated a mean NC of 4,843 per mm3 and control group (CCAA-) (mean age 75.3; range; 66-94) a mean NC of 4,108 per mm3. The difference between the groups was significant (p = 0.0008) (95% CI of difference of mean: -432, 431; observed effect size 736). CONCLUSIONS CCAAs on PXs of elderly white males are associated with elevated NC; amplifying need for medical consultation prior to invasive dental procedures.
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Affiliation(s)
- Tina I Chang
- Inpatient Oral and Maxillofacial Surgery, Veterans Affairs Great Los Angeles Healthcare System, Los Angeles, CA, USA.,Oral and Maxillofacial Surgery, School of Dentistry, University of California, Los Angeles, CA, USA
| | - Xiuju Wu
- Division of Cardiology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, CA, USA
| | - Kristina I Boström
- Cardiology, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,Medicine/Cardiology, David Geffen School of Medicine at UCLA and at the Molecular Biology Institute, University of California, Los Angeles, CA, USA
| | - Hoang-Anh Tran
- Periodontology, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Paulo Henrique Couto-Souza
- Maxillofacial Radiology, Dentistry/School of Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Arthur H Friedlander
- Maxillofacial Surgery & Medicine, Dental Service, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,Quality Assurance Hospital Dental Service, Ronald Reagan UCLA Medical Center and Professor-in-Residence of Oral and Maxillofacial Surgery, School of Dentistry, University of California, Los Angeles, CA, USA
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46
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Zadeh Mehrizi T, Eshghi P. Investigation of the effect of nanoparticles on platelet storage duration 2010–2020. INTERNATIONAL NANO LETTERS 2021. [DOI: 10.1007/s40089-021-00340-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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47
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Moore EE, Moore HB, Kornblith LZ, Neal MD, Hoffman M, Mutch NJ, Schöchl H, Hunt BJ, Sauaia A. Trauma-induced coagulopathy. Nat Rev Dis Primers 2021; 7:30. [PMID: 33927200 PMCID: PMC9107773 DOI: 10.1038/s41572-021-00264-3] [Citation(s) in RCA: 301] [Impact Index Per Article: 100.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/19/2021] [Indexed: 12/12/2022]
Abstract
Uncontrolled haemorrhage is a major preventable cause of death in patients with traumatic injury. Trauma-induced coagulopathy (TIC) describes abnormal coagulation processes that are attributable to trauma. In the early hours of TIC development, hypocoagulability is typically present, resulting in bleeding, whereas later TIC is characterized by a hypercoagulable state associated with venous thromboembolism and multiple organ failure. Several pathophysiological mechanisms underlie TIC; tissue injury and shock synergistically provoke endothelial, immune system, platelet and clotting activation, which are accentuated by the 'lethal triad' (coagulopathy, hypothermia and acidosis). Traumatic brain injury also has a distinct role in TIC. Haemostatic abnormalities include fibrinogen depletion, inadequate thrombin generation, impaired platelet function and dysregulated fibrinolysis. Laboratory diagnosis is based on coagulation abnormalities detected by conventional or viscoelastic haemostatic assays; however, it does not always match the clinical condition. Management priorities are stopping blood loss and reversing shock by restoring circulating blood volume, to prevent or reduce the risk of worsening TIC. Various blood products can be used in resuscitation; however, there is no international agreement on the optimal composition of transfusion components. Tranexamic acid is used in pre-hospital settings selectively in the USA and more widely in Europe and other locations. Survivors of TIC experience high rates of morbidity, which affects short-term and long-term quality of life and functional outcome.
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Affiliation(s)
- Ernest E Moore
- Ernest E Moore Shock Trauma Center at Denver Health, Denver, CO, USA.
- Department of Surgery, University of Colorado Denver, Aurora, CO, USA.
| | - Hunter B Moore
- Department of Surgery, University of Colorado Denver, Aurora, CO, USA
| | - Lucy Z Kornblith
- Trauma and Surgical Critical Care, Zuckerberg San Francisco General Hospital, University of California San Francisco, San Francisco, CA, USA
| | - Matthew D Neal
- Pittsburgh Trauma Research Center, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Maureane Hoffman
- Duke University School of Medicine, Transfusion Service, Durham VA Medical Center, Durham, NC, USA
| | - Nicola J Mutch
- Aberdeen Cardiovascular & Diabetes Centre, School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Herbert Schöchl
- Department of Anesthesiology and Intensive Care Medicine, AUVA Trauma Centre Salzburg, Academic Teaching Hospital of the Paracelsus Medical University, Salzburg and Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Centre, Vienna, Austria
| | | | - Angela Sauaia
- Department of Surgery, University of Colorado Denver, Aurora, CO, USA
- Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
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48
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Delcea C, Buzea CA, Vijan A, Draghici A, Stoichitoiu LE, Dan GA. Comparative role of hematological indices for the assessment of in-hospital outcome of heart failure patients. SCAND CARDIOVASC J 2021; 55:227-236. [PMID: 33761824 DOI: 10.1080/14017431.2021.1900595] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Background. The mutual relation between heart failure (HF) and inflammation is reflected in blood cell homeostasis. Neutrophil-lymphocyte ratio (NLR), monocyte-lymphocyte ratio (MLR) and platelet-lymphocyte ratio (PLR) were linked to HF severity and prognosis. Aims. Our objective was to compare the three ratios for predicting in-hospital outcome of HF patients, in order to establish which is best suited for clinical practice. Methods. Consecutive HF patients admitted to a Cardiology Department from a tertiary hospital were retrospectively evaluated for inclusion. Readmissions and pathologies modifying the hematological indices were excluded. Extended length of hospital stay (LOS) was considered over 7 d. In-hospital all-cause mortality was evaluated. Results: The hematological indices in heart failure (HI-HF) cohort included 1299 patients with a mean age of 72.35 ± 10.45 years, 51.96% women. 2.85% died during hospitalization. 22.17% had extended LOS. In Cox regression for in-hospital mortality alongside parameters from the OPTIMIZE-HF proposed model, all three ratios were independent predictors of mortality. In Cox regression including NT-proBNP, dyspnea at rest, chronic obstructive pulmonary disease (COPD), age and systolic blood pressure, only MLR was an independent predictor of in-hospital mortality (HR 1.68, 95% CI 1.22 - 2.32, p = .002). In multivariable logistic regression, all three ratios independently predicted extended LOS. MLR > 0.48 associated the highest probability (OR 1.76, 95% CI 1.25 - 2.46, p = .001). Conclusions. Hematological indices could be cost-effective and easily available auxiliary biomarkers for in-hospital prognosis of HF patients. We propose MLR > 0.48 as the strongest predictor of in-hospital mortality and prolonged hospitalization.
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Affiliation(s)
- Caterina Delcea
- Internal Medicine Department "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Cardiology Department, Colentina University Hospital, Bucharest, Romania
| | - Catalin Adrian Buzea
- Internal Medicine Department "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Cardiology Department, Colentina University Hospital, Bucharest, Romania
| | - Ancuta Vijan
- Internal Medicine Department "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Cardiology Department, Colentina University Hospital, Bucharest, Romania
| | - Anamaria Draghici
- Internal Medicine Department "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Internal Medicine Department, Colentina University Hospital, Bucharest, Romania
| | | | - Gheorghe-Andrei Dan
- Internal Medicine Department "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Cardiology Department, Colentina University Hospital, Bucharest, Romania
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49
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Long-term treated HIV infection is associated with platelet mitochondrial dysfunction. Sci Rep 2021; 11:6246. [PMID: 33739024 PMCID: PMC7973809 DOI: 10.1038/s41598-021-85775-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 03/01/2021] [Indexed: 12/31/2022] Open
Abstract
HIV infection and antiretroviral therapy have been linked to mitochondrial dysfunction. The role of platelet mitochondrial dysfunction in thrombosis, immunoregulation and age-related diseases is increasingly appreciated. Here, we studied platelet mitochondrial DNA content (mtDNApl) and mitochondrial function in people living with HIV (PLHIV) and related this to platelet function. In a cohort of 208 treated PLHIV and 56 uninfected controls, mtDNApl was quantified, as well as platelet activation, platelet agonist-induced reactivity and inflammation by circulating factors and flow cytometry. In a subgroup of participants, the metabolic activity of platelets was further studied by mitochondrial function tests and the Seahorse Flux Analyzer. PLHIV had significantly lower mtDNApl compared to controls (8.5 copies/platelet (IQR: 7.0–10.7) vs. 12.2 copies/platelet (IQR: 9.5–16.6); p < 0.001), also after correction for age, sex and BMI. Prior zidovudine-use (n = 46) was associated with a trend for lower mtDNApl. PLHIV also had reduced ex vivo platelet reactivity and mean platelet volume compared to controls. MtDNApl correlated positively with both platelet parameters and correlated negatively with inflammatory marker sCD163. Mitochondrial function tests in a subgroup of participants confirmed the presence of platelet mitochondrial respiration defects. Platelet mitochondrial function is disturbed in PLHIV, which may contribute to platelet dysfunction and subsequent complications. Interventions targeting the preservation of normal platelet mitochondrial function may ultimately prove beneficial for PLHIV.
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50
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Li X, Zhang Y, Cheng F, Yu Y, Wang D. Metabolomics and Proteomics Reveal the Variation of Substances in Apheresis Platelets during Storage and Their Effects on Cancer Cell Proliferation. Transfus Med Hemother 2021; 48:79-90. [PMID: 33976608 PMCID: PMC8077496 DOI: 10.1159/000509944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 07/05/2020] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Apheresis platelets (APs) are clinically and crucially important in the prevention and treatment of bleeding in patients with thrombocytopenia or cancer. However, few researchers have addressed the variation of supernatant metabolites and exosome proteins in APs during storage and their effects on cancer cell proliferation. OBJECTIVE This study was designed to explore the change rules of the metabolites and exosomal proteins of APs during storage and their effects on cancer cell proliferation. METHODS Metabolomics and proteomics were separately applied to analyze the variation of AP supernatant metabolites and exosomal proteins between freshly prepared day-0 and day-5 terminal-stored APs. Cell counting kit (CCK)-8 assay was performed to detect the effects of AP supernatants and exosomes on the proliferation of cancer cells. RESULTS We found that the supernatant metabolites and exosomal proteins in APs were significantly different on day 0 and day 5, and that many differential metabolites and exosomal proteins were associated with cancer characteristics. Furthermore, the day-5 AP supernatants had a greater inhibition of the proliferation of K562, HepG2, and HCT116 cancer cells, but the day-5 AP exosomes had no significant effect on the proliferation of these cancer cells. CONCLUSION The variant terminal-stored AP supernatants may inhibit the proliferation of cancer cells but the variant terminal AP exosomes have no effect on cancer cell proliferation.
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Affiliation(s)
- Xiaofei Li
- Department of Blood Transfusion, Chinese PLA General Hospital, Beijing, China
- Department of Blood Transfusion, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yuan Zhang
- Department of Blood Transfusion, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Fu Cheng
- Department of Blood Transfusion, West China Hospital of Sichuan University, Chengdu, China
| | - Yang Yu
- Department of Blood Transfusion, Chinese PLA General Hospital, Beijing, China
| | - Deqing Wang
- Department of Blood Transfusion, Chinese PLA General Hospital, Beijing, China
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