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Felipo-Benavent M, Martínez-Romero A, Rubio-Guerri C, Álvaro-Álvarez T, Gil D, García-Párraga D, O'Connor JE. Flow cytometric kinetic assay of calcium mobilization in whole blood platelets of bottlenose dolphins (Tursiops truncatus). Cytometry A 2022; 103:347-352. [PMID: 36164987 DOI: 10.1002/cyto.a.24693] [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: 07/21/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/07/2022]
Abstract
Marine mammals may suffer alterations in platelet function and hemostasia due to multiple pathologies, environmental conditions (including stress) or exposure to different contaminants that induce platelet activation. Detecting early alterations in platelet function in these animals could be an especially relevant diagnostic tool in these species because they typically do not show signs of weakness or disease until the pathology is in advanced state, in order to avoid attracting predators in natural conditions. The study of early markers of platelet activation is relevant for the detection, monitoring and therapy of inflammation and hemostasis disorders. Flow cytometry provides a convenient method to evaluate platelet activation by following the kinetics of intracellular Ca2+ , using sensitive fluorescent indicators that can be loaded into intact cells. In order to study intraplatelet Ca2+ mobilization in marine mammals, we have adapted a kinetic assay of human platelet activation to study platelet activation in whole-blood samples of bottlenose dolphins (Tursiops truncatus) using the Ca2+ -sensitive dye Fluo-4AM and a clone of the platelet-specific antibody CD41-PE that recognizes dolphin platelets. This no-wash, no-lyse protocol provides a simple and sensitive tool to assess in vitro the time course and intensity of signal-transduction responses to platelet agonists under near-physiological conditions. The adaptation of this technique to marine mammals represents a methodological advance for basic and clinical veterinary applications but also for general environmental studies on these species.
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Affiliation(s)
- Mar Felipo-Benavent
- Laboratory of Cytomics, Joint Research Unit CIPF-UVEG, Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain
| | | | - Consuelo Rubio-Guerri
- Research Department, Fundació Oceanogràfic de la Comunitat Valenciana, Valencia, Spain.,Department of Pharmacy, Faculty of Health Sciences, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| | - Teresa Álvaro-Álvarez
- Veterinary Services, Oceanogràfic, Ciudad de las Artes y las Ciencias, Valencia, Spain
| | - Domingo Gil
- Cytomics Technological Service, Príncipe Felipe Research Center, Valencia, Spain
| | - Daniel García-Párraga
- Research Department, Fundació Oceanogràfic de la Comunitat Valenciana, Valencia, Spain.,Veterinary Services, Oceanogràfic, Ciudad de las Artes y las Ciencias, Valencia, Spain
| | - José-Enrique O'Connor
- Laboratory of Cytomics, Joint Research Unit CIPF-UVEG, Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain
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Ke J, Lu N, Liu Y, Chen H. Association between platelet distribution width and peripheral arterial disease in elderly patients. VASA 2022; 51:298-304. [DOI: 10.1024/0301-1526/a001022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Summary: Background: The prevalence of peripheral arterial disease (PAD) increases with age. Platelet activation has been linked to PAD. Platelet distribution width (PDW) is a measure of platelet function. This study aimed to investigate the relationship between PAD and PDW in elderly patients. Patients and methods: A total of 416 elderly patients in Fujian Provincial Hospital between January 1, 2018 and June 30, 2019 were enrolled. PAD was diagnosed when the ankle-brachial index (ABI) was below 0.9. Multivariate logistic regression analysis was used to examine the association between PDW and PAD. ROC curves and AUC were used to assess the diagnostic value. Results: Compared to patients without PAD, PDW was higher in patients with PAD (PAD vs. subjects without PAD, 13.19±2.24% vs. 11.52±1.39%, p<0.001). PDW was associated with an increased OR of PAD (OR: 1.667, 95% CI: 1.462–1.901, p<0.001). After adjusting for potential confounding factors, the OR changed to 1.821 (95% CI: 1.535–2.114, p<0.001). This association appeared to be more prominent in females than males (females vs. males, OR: 2.294, 95% CI: 1.556–3.381 vs. OR: 1.695, 95% CI: 1.404–2.047, p<0.001). The AUC area was 0.760 (95% CI: 0.682–0.837) for females and 0.689 (95% CI: 0.627–0.752) for males. Both cut-off values had high specificity (females vs. males, 95% vs. 100%). Conclusions: PDW was higher in elderly patients with PAD than in subjects without PAD, and the association between PDW and PAD persisted after adjusting for confounding factors.
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Affiliation(s)
- Jiaxing Ke
- Fujian Medical University, Fuzhou, Fujian, China
| | - Nan Lu
- Fujian Medical University, Fuzhou, Fujian, China
| | - Yucheng Liu
- Fujian Medical University, Fuzhou, Fujian, China
| | - Haifeng Chen
- Fujian Medical University, Fuzhou, Fujian, China
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3
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Assad H, Kumar A. Understanding functional group effect on corrosion inhibition efficiency of selected organic compounds. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117755] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Maternal and offspring high-fat diet leads to platelet hyperactivation in male mice offspring. Sci Rep 2021; 11:1473. [PMID: 33446734 PMCID: PMC7809045 DOI: 10.1038/s41598-020-80373-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/21/2020] [Indexed: 01/25/2023] Open
Abstract
Maternal over-nutrition increases the risk of diabetes and cardiovascular events in offspring. While prominent effects on cardiovascular health are observed, the impact on platelet physiology has not been studied. Here, we examined whether maternal high-fat diet (HF) ingestion affects the platelet function in lean and obese offspring. C57BL6/N mice dams were given a HF or control (C) diet for 8 weeks before and during pregnancy. Male and female offspring received C or HF diets for 26 weeks. Experimental groups were: C/C, dam and offspring fed standard laboratory diet; C/HF dam fed standard laboratory diet and offspring fed HF diet; HF/C and HF/HF. Phenotypic and metabolic tests were performed and blood collected for platelet studies. Compared to C/C, offspring HF groups were obese, with fat accumulation, hyperglycaemia and insulin resistance. Female offspring did not present platelet hyperactivity, hence we focused on male offspring. Platelets from HF/HF mice were larger, hyperactive and presented oxidative stress when compared to C/C. Maternal and offspring HF diet results in platelet hyperactivation in male mouse offspring, suggesting a novel ‘double-hit’ effect.
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Rudzik R, Dziedziejko V, Rać ME, Sawczuk M, Maciejewska-Skrendo A, Safranow K, Pawlik A. Polymorphisms in GP6, PEAR1A, MRVI1, PIK3CG, JMJD1C, and SHH Genes in Patients with Unstable Angina. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17207506. [PMID: 33076381 PMCID: PMC7602592 DOI: 10.3390/ijerph17207506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Coronary artery disease (CAD) is a significant public health problem because it is one of the major causes of death worldwide. Several studies have investigated the associations between CAD and polymorphisms in genes connected with platelet aggregation and the risk of venous thromboembolism. AIM In this study, we examined the associations between polymorphisms in GP6 (rs1671152), PEAR1A (rs12566888), MRVI1 (rs7940646), PIK3CG (rs342286), JMJD1C (rs10761741), SHH (rs2363910), and CAD in the form of unstable angina as well as selected clinical and biochemical parameters. The study enrolled 246 patients with diagnosed unstable angina and 189 healthy controls. RESULTS There were no significant differences in the distribution of the studied polymorphisms between the patients with unstable angina and the controls. In patients with the GP6 rs1671152 GG genotype, we observed increased BMI values and an increased frequency of type 2 diabetes diagnosis. CONCLUSIONS The results of this study suggest a lack of association between GP6 (rs1671152), PEAR1A (rs12566888), MRVI1 (rs7940646), PIK3CG (rs342286), JMJD1C (rs10761741), SHH (rs2363910), and unstable angina. The results indicate an association between GP6 (rs1671152) and type 2 diabetes.
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Affiliation(s)
- Rafał Rudzik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Violetta Dziedziejko
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70-111 Szczecin, Poland; (V.D.); (M.E.R.); (K.S.)
| | - Monika Ewa Rać
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70-111 Szczecin, Poland; (V.D.); (M.E.R.); (K.S.)
| | - Marek Sawczuk
- Insitute of Physical Culture Sciences, University of Szczecin, 70-111 Szczecin, Poland;
| | | | - Krzysztof Safranow
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70-111 Szczecin, Poland; (V.D.); (M.E.R.); (K.S.)
| | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland;
- Correspondence: ; Tel.: +48-91-466-1611
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Foster H, Wilson C, Philippou H, Foster R. Progress toward a Glycoprotein VI Modulator for the Treatment of Thrombosis. J Med Chem 2020; 63:12213-12242. [PMID: 32463237 DOI: 10.1021/acs.jmedchem.0c00262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Pathogenic thrombus formation accounts for the etiology of many serious conditions including myocardial infarction, stroke, deep vein thrombosis, and pulmonary embolism. Despite the development of numerous anticoagulants and antiplatelet agents, the mortality rate associated with these diseases remains high. In recent years, however, significant epidemiological evidence and clinical models have emerged to suggest that modulation of the glycoprotein VI (GPVI) platelet receptor could be harnessed as a novel antiplatelet strategy. As such, many peptidic agents have been described in the past decade, while more recent efforts have focused on the development of small molecule modulators. Herein the rationale for targeting GPVI is summarized and the published GPVI modulators are reviewed, with particular focus on small molecules. A qualitative pharmacophore hypothesis for small molecule ligands at GPVI is also presented.
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Affiliation(s)
- Holly Foster
- School of Chemistry and Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - Clare Wilson
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - Helen Philippou
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
| | - Richard Foster
- School of Chemistry and Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, U.K
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Melatonin therapy for diabetic cardiomyopathy: A mechanism involving Syk-mitochondrial complex I-SERCA pathway. Cell Signal 2018; 47:88-100. [DOI: 10.1016/j.cellsig.2018.03.012] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 03/18/2018] [Accepted: 03/23/2018] [Indexed: 12/22/2022]
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Zaccardi F, Rizzi A, Petrucci G, Ciaffardini F, Tanese L, Pagliaccia F, Cavalca V, Ciminello A, Habib A, Squellerio I, Rizzo P, Tremoli E, Rocca B, Pitocco D, Patrono C. In Vivo Platelet Activation and Aspirin Responsiveness in Type 1 Diabetes. Diabetes 2016; 65:503-9. [PMID: 26470782 DOI: 10.2337/db15-0936] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 10/07/2015] [Indexed: 12/17/2022]
Abstract
Platelet activation is persistently enhanced, and its inhibition by low-dose aspirin is impaired in type 2 diabetes mellitus. We investigated in vivo thromboxane (TX) and prostacyclin (PGI2) biosynthesis and their determinants, as well as aspirin responsiveness, in young adult subjects with type 1 diabetes mellitus (T1DM) without overt cardiovascular disease and stable glycemic control. The biosynthesis of TXA2 was persistently increased in subjects with T1DM versus matched healthy subjects, with females showing higher urinary TX metabolite (TXM) excretion than male subjects with T1DM. Microalbuminuria and urinary 8-iso-PGF2α, an index of in vivo oxidative stress, independently predicted TXM excretion in T1DM. No homeostatic increase in PGI2 biosynthesis was detected. Platelet COX-1 suppression by low-dose aspirin and the kinetics of its recovery after drug withdrawal were similar in patients and control subjects and were unaffected by glucose variability. We conclude that patients with T1DM and stable glycemic control display enhanced platelet activation correlating with female sex and microvascular and oxidative damages. Moreover, aspirin responsiveness is unimpaired in T1DM, suggesting that the metabolic disturbance per se is unrelated to altered pharmacodynamics. The efficacy and safety of low-dose aspirin in T1DM warrant further clinical investigation.
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Affiliation(s)
- Francesco Zaccardi
- Diabetes Care Unit, Catholic University School of Medicine, Rome, Italy Diabetes Research Centre, University of Leicester, Leicester, U.K
| | - Alessandro Rizzi
- Diabetes Care Unit, Catholic University School of Medicine, Rome, Italy
| | - Giovanna Petrucci
- Institute of Pharmacology, Catholic University School of Medicine, Rome, Italy
| | - Flavia Ciaffardini
- Institute of Pharmacology, Catholic University School of Medicine, Rome, Italy
| | - Luigi Tanese
- Diabetes Care Unit, Catholic University School of Medicine, Rome, Italy
| | | | | | - Angela Ciminello
- Institute of Hematology, Catholic University School of Medicine, Rome, Italy
| | - Aida Habib
- INSERM UMR 1149, Centre de Recherche sur l'Inflammation, Université Paris 7 Diderot, Laboratoire d'Excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | | | - Paola Rizzo
- Diabetes Care Unit, Catholic University School of Medicine, Rome, Italy
| | | | - Bianca Rocca
- Institute of Pharmacology, Catholic University School of Medicine, Rome, Italy
| | - Dario Pitocco
- Diabetes Care Unit, Catholic University School of Medicine, Rome, Italy
| | - Carlo Patrono
- Institute of Pharmacology, Catholic University School of Medicine, Rome, Italy
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Berndt MC, Metharom P, Andrews RK. Primary haemostasis: newer insights. Haemophilia 2014; 20 Suppl 4:15-22. [PMID: 24762270 DOI: 10.1111/hae.12427] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2014] [Indexed: 12/18/2022]
Abstract
At the same time as biophysical and omics approaches are drilling deeper into the molecular details of platelets and other blood cells, as well as their receptors and mechanisms of regulation, there is also an increasing awareness of the functional overlap between human vascular systems. Together, these studies are redefining the intricate networks linking haemostasis and thrombosis with inflammation, infectious disease, cancer/metastasis and other vascular pathophysiology. The focus of this state-of-the-art review is some of the newer advances relevant to primary haemostasis. Of particular interest, platelet-specific primary adhesion-signalling receptors and associated activation pathways control platelet function in flowing blood and provide molecular links to other systems. Platelet glycoprotein (GP)Ibα of the GPIb-IX-V complex and GPVI not only initiate platelet aggregation and thrombus formation by primary interactions with von Willebrand factor and collagen, respectively, but are also involved in coagulation, leucocyte engagement, bacterial or viral interactions, and are relevant as potential risk markers in a range of human diseases. Understanding these systems in unprecedented detail promises significant advances in evaluation of individual risk, in new diagnostic or therapeutic possibilities and in monitoring the response to drugs or other treatment.
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Affiliation(s)
- M C Berndt
- Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
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Qiao J, Shen Y, Shi M, Lu Y, Cheng J, Chen Y. Molecular cloning and characterization of rhesus monkey platelet glycoprotein Ibα, a major ligand-binding subunit of GPIb-IX-V complex. Thromb Res 2014; 133:817-25. [PMID: 24560895 DOI: 10.1016/j.thromres.2014.01.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 01/04/2014] [Accepted: 01/27/2014] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Through binding to von Willebrand factor (VWF), platelet glycoprotein (GP) Ibα, the major ligand-binding subunit of the GPIb-IX-V complex, initiates platelet adhesion and aggregation in response to exposed VWF or elevated fluid-shear stress. There is little data regarding non-human primate platelet GPIbα. This study cloned and characterized rhesus monkey (Macaca Mullatta) platelet GPIbα. MATERIALS AND METHODS DNAMAN software was used for sequence analysis and alignment. N/O-glycosylation sites and 3-D structure modelling were predicted by online OGPET v1.0, NetOGlyc 1.0 Server and SWISS-MODEL, respectively. Platelet function was evaluated by ADP- or ristocetin-induced platelet aggregation. RESULTS Rhesus monkey GPIbα contains 2,268 nucleotides with an open reading frame encoding 755 amino acids. Rhesus monkey GPIbα nucleotide and protein sequences share 93.27% and 89.20% homology respectively, with human. Sequences encoding the leucine-rich repeats of rhesus monkey GPIbα share strong similarity with human, whereas PEST sequences and N/O-glycosylated residues vary. The GPIbα-binding residues for thrombin, filamin A and 14-3-3ζ are highly conserved between rhesus monkey and human. Platelet function analysis revealed monkey and human platelets respond similarly to ADP, but rhesus monkey platelets failed to respond to low doses of ristocetin where human platelets achieved 76% aggregation. However, monkey platelets aggregated in response to higher ristocetin doses. CONCLUSIONS Monkey GPIbα shares strong homology with human GPIbα, however there are some differences in rhesus monkey platelet activation through GPIbα engagement, which need to be considered when using rhesus monkey platelet to investigate platelet GPIbα function.
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Affiliation(s)
- Jianlin Qiao
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Haematology, the Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
| | - Yang Shen
- Australian Centre for Blood Diseases, Monash University, Melbourne, 3004, Victoria, Australia
| | - Meimei Shi
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yanrong Lu
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jingqiu Cheng
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Younan Chen
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China.
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