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Kong YX, Chiu J, Passam FH. "Sticki-ER": Functions of the Platelet Endoplasmic Reticulum. Antioxid Redox Signal 2024. [PMID: 38284332 DOI: 10.1089/ars.2024.0566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Significance: The primary role of platelets is to generate a thrombus by platelet activation. Platelet activation relies on calcium mobilization from the endoplasmic reticulum (ER). ER resident proteins, which are externalized upon platelet activation, are essential for the function of platelet surface receptors and intercellular interactions. Recent Advances: The platelet ER is a conduit for changes in cellular function in response to the extracellular milieu. ER homeostasis is maintained by an appropriate redox balance, regulated calcium stores and normal protein folding. Alterations in ER function and ER stress results in ER proteins externalizing to the cell surface, including members of the protein disulfide isomerase family (PDIs) and chaperones. Critical Issues: The platelet ER is central to platelet function, but our understanding of its regulation is incomplete. Previous studies have focused on the function of PDIs in the extracellular space, and much less on their intracellular role. How platelets maintain ER homeostasis and how they direct ER chaperone proteins to facilitate intercellular signalling is unknown. Future Directions: An understanding of ER functions in the platelet is essential as these may determine critical platelet activities such as secretion and adhesion. Studies are necessary to understand the redox reactions of PDIs in the intracellular versus extracellular space, as these differentially affect platelet function. An unresolved question is how platelet ER proteins control calcium release. Regulation of protein folding in the platelet and downstream pathways of ER stress require further evaluation. Targeting the platelet ER may have therapeutic application in metabolic and neoplastic disease.
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Affiliation(s)
- Yvonne X Kong
- Haematology Research Group, Charles Perkins Centre; The University of Sydney, Camperdown, New South Wales, Australia
- Central Clinical School, Faculty of Medicine and Health; The University of Sydney, Camperdown, New South Wales, Australia
- Department of Haematology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Joyce Chiu
- ACRF Centenary Cancer Research Centre, The Centenary Institute; The University of Sydney, Camperdown, New South Wales, Australia
| | - Freda H Passam
- Haematology Research Group, Charles Perkins Centre; The University of Sydney, Camperdown, New South Wales, Australia
- Central Clinical School, Faculty of Medicine and Health; The University of Sydney, Camperdown, New South Wales, Australia
- Department of Haematology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
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2
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Sharma K, Menon MB. Decoding post-translational modifications of mammalian septins. Cytoskeleton (Hoboken) 2023; 80:169-181. [PMID: 36797225 DOI: 10.1002/cm.21747] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/21/2023] [Accepted: 02/10/2023] [Indexed: 02/18/2023]
Abstract
Septins are cytoskeletal GTPases that form nonpolar filaments and higher-ordered structures and they take part in a wide range of cellular processes. Septins are conserved from yeast to mammals but absent from higher plants. The number of septin genes vary between organisms and they usually form complex heteropolymeric networks. Most septins are known to be capable of GTP hydrolysis which may regulate septin dynamics. Knowledge on regulation of septin function by post-translational modifications is still in its infancy. In this review article, we highlight the post-translational modifications reported for the 13 human septins and discuss their implications on septin functions. In addition to the functionally investigated modifications, we also try to make sense of the complex septin post-translational modification code revealed from large-scale phospho-proteomic datasets. Future studies may determine how these isoform-specific and homology group specific modifications affect septin structure and function.
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Affiliation(s)
- Khushboo Sharma
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, India
| | - Manoj B Menon
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, India
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3
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Keppner A, Correia M, Santambrogio S, Koay TW, Maric D, Osterhof C, Winter DV, Clerc A, Stumpe M, Chalmel F, Dewilde S, Odermatt A, Kressler D, Hankeln T, Wenger RH, Hoogewijs D. Androglobin, a chimeric mammalian globin, is required for male fertility. eLife 2022; 11:72374. [PMID: 35700329 PMCID: PMC9249397 DOI: 10.7554/elife.72374] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
Spermatogenesis is a highly specialized differentiation process driven by a dynamic gene expression program and ending with the production of mature spermatozoa. Whereas hundreds of genes are known to be essential for male germline proliferation and differentiation, the contribution of several genes remains uncharacterized. The predominant expression of the latest globin family member, androglobin (Adgb), in mammalian testis tissue prompted us to assess its physiological function in spermatogenesis. Adgb knockout mice display male infertility, reduced testis weight, impaired maturation of elongating spermatids, abnormal sperm shape, and ultrastructural defects in microtubule and mitochondrial organization. Epididymal sperm from Adgb knockout animals display multiple flagellar malformations including coiled, bifid or shortened flagella, and erratic acrosomal development. Following immunoprecipitation and mass spectrometry, we could identify septin 10 (Sept10) as interactor of Adgb. The Sept10-Adgb interaction was confirmed both in vivo using testis lysates and in vitro by reciprocal co-immunoprecipitation experiments. Furthermore, the absence of Adgb leads to mislocalization of Sept10 in sperm, indicating defective manchette and sperm annulus formation. Finally, in vitro data suggest that Adgb contributes to Sept10 proteolysis in a calmodulin-dependent manner. Collectively, our results provide evidence that Adgb is essential for murine spermatogenesis and further suggest that Adgb is required for sperm head shaping via the manchette and proper flagellum formation.
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Affiliation(s)
- Anna Keppner
- Department of Endocrinology, Metabolism and Cardiovascular system, University of Fribourg, Fribourg, Switzerland
| | - Miguel Correia
- Department of Endocrinology, Metabolism and Cardiovascular system, University of Fribourg, Fribourg, Switzerland
| | | | - Teng Wei Koay
- Department of Endocrinology, Metabolism and Cardiovascular system, University of Fribourg, Fribourg, Switzerland
| | - Darko Maric
- Department of Endocrinology, Metabolism and Cardiovascular system, University of Fribourg, Fribourg, Switzerland
| | - Carina Osterhof
- Institute for Organismic and Molecular Evolutionary Biology, University of Mainz, Mainz, Germany
| | - Denise V Winter
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Angèle Clerc
- Department of Endocrinology, Metabolism and Cardiovascular system, University of Fribourg, Fribourg, Switzerland
| | - Michael Stumpe
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | | | - Sylvia Dewilde
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Alex Odermatt
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Dieter Kressler
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Thomas Hankeln
- Institute for Organismic and Molecular Evolutionary Biology, University of Mainz, Mainz, Germany
| | - Roland H Wenger
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - David Hoogewijs
- Department of Endocrinology, Metabolism and Cardiovascular system, University of Fribourg, Fribourg, Switzerland
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4
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Pistrosch F, Matschke JB, Schipp D, Schipp B, Henkel E, Weigmann I, Sradnick J, Bornstein SR, Birkenfeld AL, Hanefeld M. Rivaroxaban compared with low-dose aspirin in individuals with type 2 diabetes and high cardiovascular risk: a randomised trial to assess effects on endothelial function, platelet activation and vascular biomarkers. Diabetologia 2021; 64:2701-2712. [PMID: 34495376 PMCID: PMC8563606 DOI: 10.1007/s00125-021-05562-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 06/22/2021] [Indexed: 02/08/2023]
Abstract
AIMS/HYPOTHESIS Individuals with type 2 diabetes mellitus and subclinical inflammation have stimulated coagulation, activated platelets and endothelial dysfunction. Recent studies with the direct factor Xa inhibitor rivaroxaban in combination with low-dose aspirin demonstrated a significant reduction of major cardiovascular events, especially in individuals with type 2 diabetes and proven cardiovascular disease. Therefore, we asked the question of whether treatment with rivaroxaban could influence endothelial function, arterial stiffness and platelet activation. METHODS We conducted a multi-centre, prospective, randomised, open-label trial in 179 participants with type 2 diabetes (duration 2-20 years), subclinical inflammation (high-sensitivity C-reactive protein 2-10 mg/l) and at least two traits of the metabolic syndrome to compare the effects of the direct factor Xa inhibitor rivaroxaban (5 mg twice daily) vs aspirin (100 mg every day) on endothelial function (assessed by forearm occlusion plethysmography), skin blood flow (assessed by laser-Doppler fluxmetry), arterial stiffness (assessed by pulse wave velocity) and serum biomarkers of endothelial function and inflammation. Furthermore, we investigated phosphorylation of vasodilator-stimulated phosphoprotein (VASP) in platelets, the concentration of platelet-derived microparticles (PMPs) and the effects of isolated PMPs on HUVEC proliferation in vitro. RESULTS Rivaroxaban treatment for 20 weeks (n = 89) resulted in a significant improvement of post-ischaemic forearm blood flow (3.6 ± 4.7 vs 1.0 ± 5.2 ml/100 ml, p = 0.004), a numerically increased skin blood flow and reduced soluble P-Selectin plasma level vs aspirin. We did not find significant differences of arterial stiffness or further biomarkers. Neither rivaroxaban nor aspirin influenced VASP phosphorylation of platelets. The number of PMPs increased significantly with both rivaroxaban (365.2 ± 372.1 vs 237.4 ± 157.1 μl-1, p = 0.005) and aspirin (266.0 ± 212.7 vs 201.7 ± 162.7 μl-1, p = 0.021). PMPs of rivaroxaban-treated participants stimulated HUVEC proliferation in vitro compared with aspirin. Rivaroxaban was associated with a higher number of bleeding events. CONCLUSIONS/INTERPRETATION Our findings indicate that the direct factor Xa inhibitor rivaroxaban improved endothelial function in participants with type 2 diabetes and subclinical inflammation but also increased the risk of bleeding. TRIAL REGISTRATION ClinicalTrials.gov NCT02164578. FUNDING The study was supported by a research grant from Bayer Vital AG, Germany.
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Affiliation(s)
- Frank Pistrosch
- Medical Clinic III, Universitätsklinikum 'Carl Gustav Carus', Dresden, Germany.
| | - Jan B Matschke
- Medical Clinic III, Universitätsklinikum 'Carl Gustav Carus', Dresden, Germany
| | | | - Bernhard Schipp
- Faculty of Business and Economics, Department of Quantitative Methods, TU-Dresden, Dresden, Germany
| | | | - Ingo Weigmann
- Medical Clinic III, Universitätsklinikum 'Carl Gustav Carus', Dresden, Germany
| | - Jan Sradnick
- Medical Clinic III, Universitätsklinikum 'Carl Gustav Carus', Dresden, Germany
| | - Stefan R Bornstein
- Medical Clinic III, Universitätsklinikum 'Carl Gustav Carus', Dresden, Germany
| | - Andreas L Birkenfeld
- Internal Medicine IV, Universitätsklinikum Tuebingen, Tuebingen, Germany
- Institute of Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich, Tuebingen, Germany
| | - Markolf Hanefeld
- Medical Clinic III, Universitätsklinikum 'Carl Gustav Carus', Dresden, Germany
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5
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Xiao W, Zhou K, Yang M, Sun C, Dai L, Gu J, Yan R, Dai K. Carbamazepine Induces Platelet Apoptosis and Thrombocytopenia Through Protein Kinase A. Front Pharmacol 2021; 12:749930. [PMID: 34658890 PMCID: PMC8513130 DOI: 10.3389/fphar.2021.749930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/13/2021] [Indexed: 11/13/2022] Open
Abstract
Carbamazepine is extensively used worldwide to treat a wide range of disorders such as epilepsy, peripheral neuralgia and bipolar disorder. Thrombocytopenia and hemorrhage have been identified in multiple carbamazepine-treated patients. However, the underlying mechanism remains poorly understood. Here, we show that platelets undergo apoptosis after carbamazepine treatment. The apoptotic platelets induced by carbamazepine are rapidly removed in vivo, which accounts for thrombocytopenia. We found that carbamazepine treatment attenuates the phosphorylation level of bcl-xl/bcl-2-associated death promoter (BAD), vasodilator-associated stimulated phosphoprotein (VASP) and GPIbβ in platelets, indicating an inhibition effect on protein kinase A (PKA). We further demonstrated that carbamazepine reduced PKA activity through PI3K/Akt/PDE3A signaling pathway. Pharmacological activation of PKA or inhibition of PI3K/Akt/PDE3A protects platelets from apoptosis induced by carbamazepine. Importantly, PDE3A inhibitors or PKA activator ameliorates carbamazepine-mediated thrombocytopenia in vivo. These findings shed light on a possible mechanism of carbamazepine-induced thrombocytopenia, designating PDE3A/PKA as a potential therapeutic target in the treatment of carbamazepine-induced thrombocytopenia.
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Affiliation(s)
- Weiling Xiao
- Jiangsu Institute of Hematology, Cyrus Tang Medical Institute, The First Affiliated Hospital and Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Key Laboratory of Thrombosis and Hemostasis, Ministry of Health, Suzhou, China.,Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Kangxi Zhou
- Jiangsu Institute of Hematology, Cyrus Tang Medical Institute, The First Affiliated Hospital and Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Key Laboratory of Thrombosis and Hemostasis, Ministry of Health, Suzhou, China
| | - Mengnan Yang
- Jiangsu Institute of Hematology, Cyrus Tang Medical Institute, The First Affiliated Hospital and Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Key Laboratory of Thrombosis and Hemostasis, Ministry of Health, Suzhou, China
| | - Chenglin Sun
- Jiangsu Institute of Hematology, Cyrus Tang Medical Institute, The First Affiliated Hospital and Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Key Laboratory of Thrombosis and Hemostasis, Ministry of Health, Suzhou, China
| | - Lan Dai
- Jiangsu Institute of Hematology, Cyrus Tang Medical Institute, The First Affiliated Hospital and Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Key Laboratory of Thrombosis and Hemostasis, Ministry of Health, Suzhou, China
| | - Jian Gu
- Department of Hematology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Rong Yan
- Jiangsu Institute of Hematology, Cyrus Tang Medical Institute, The First Affiliated Hospital and Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Key Laboratory of Thrombosis and Hemostasis, Ministry of Health, Suzhou, China
| | - Kesheng Dai
- Jiangsu Institute of Hematology, Cyrus Tang Medical Institute, The First Affiliated Hospital and Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Key Laboratory of Thrombosis and Hemostasis, Ministry of Health, Suzhou, China
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6
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Saadane A, Du Y, Thoreson WB, Miyagi M, Lessieur EM, Kiser J, Wen X, Berkowitz BA, Kern TS. Photoreceptor Cell Calcium Dysregulation and Calpain Activation Promote Pathogenic Photoreceptor Oxidative Stress and Inflammation in Prodromal Diabetic Retinopathy. THE AMERICAN JOURNAL OF PATHOLOGY 2021; 191:1805-1821. [PMID: 34214506 PMCID: PMC8579242 DOI: 10.1016/j.ajpath.2021.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 05/20/2021] [Accepted: 06/15/2021] [Indexed: 12/13/2022]
Abstract
This study tested the hypothesis that diabetes promotes a greater than normal cytosolic calcium level in rod cells that activates a Ca2+-sensitive protease, calpain, resulting in oxidative stress and inflammation, two pathogenic factors of early diabetic retinopathy. Nondiabetic and 2-month diabetic C57Bl/6J and calpain1 knockout (Capn1-/-) mice were studied; subgroups were treated with a calpain inhibitor (CI). Ca2+ content was measured in photoreceptors using Fura-2. Retinal calpain expression was studied by quantitative RT-PCR and immunohistochemistry. Superoxide and expression of inflammatory proteins were measured using published methods. Proteomic analysis was conducted on photoreceptors isolated from untreated diabetic mice or treated daily with CI for 2 months. Cytosolic Ca2+ content was increased twofold in photoreceptors of diabetic mice as compared with nondiabetic mice. Capn1 expression increased fivefold in photoreceptor outer segments of diabetic mice. Pharmacologic inhibition or genetic deletion of Capn1 significantly suppressed diabetes-induced oxidative stress and expression of proinflammatory proteins in retina. Proteomics identified a protein (WW domain-containing oxidoreductase [WWOX]) whose expression was significantly increased in photoreceptors from mice diabetic for 2 months and was inhibited with CI. Knockdown of Wwox using specific siRNA in vitro inhibited increase in superoxide caused by the high glucose. These results suggest that reducing Ca2+ accumulation, suppressing calpain activation, and/or reducing Wwox up-regulation are novel targets for treating early diabetic retinopathy.
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Affiliation(s)
- Aicha Saadane
- Department of Ophthalmology, University of California, Irvine, Irvine, California.
| | - Yunpeng Du
- Department of Ophthalmology, University of California, Irvine, Irvine, California
| | - Wallace B Thoreson
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska; Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska
| | - Masaru Miyagi
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio
| | - Emma M Lessieur
- Department of Ophthalmology, University of California, Irvine, Irvine, California
| | - Jianying Kiser
- Department of Ophthalmology, University of California, Irvine, Irvine, California
| | - Xiangyi Wen
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Bruce A Berkowitz
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, Michigan
| | - Timothy S Kern
- Department of Ophthalmology, University of California, Irvine, Irvine, California; Veterans Administration Medical Center Research Service, Long Beach, California
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7
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Gatsiou A, Sopova K, Tselepis A, Stellos K. Interleukin-17A Triggers the Release of Platelet-Derived Factors Driving Vascular Endothelial Cells toward a Pro-Angiogenic State. Cells 2021; 10:1855. [PMID: 34440624 PMCID: PMC8392697 DOI: 10.3390/cells10081855] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 01/26/2023] Open
Abstract
Platelets comprise a highly interactive immune cell subset of the circulatory system traditionally known for their unique haemostatic properties. Although platelets are considered as a vault of growth factors, cytokines and chemokines with pivotal role in vascular regeneration and angiogenesis, the exact mechanisms by which they influence vascular endothelial cells (ECs) function remain underappreciated. In the present study, we examined the role of human IL-17A/IL-17RA axis in platelet-mediated pro-angiogenic responses. We reveal that IL-17A receptor (IL-17RA) mRNA is present in platelets transcriptome and a profound increase is documented on the surface of activated platelets. By quantifying the protein levels of several factors, involved in angiogenesis, we identified that IL-17A/IL17RA axis selectively induces the release of vascular endothelial growth factor, interleukin -2 and -4, as well as monocyte chemoattractant protein -1 from treated platelets. However, IL-17A exerted no effect on the release of IL-10, an anti-inflammatory factor with potentially anti-angiogenic properties, from platelets. Treatment of human endothelial cell two-dimensional tubule networks or three-dimensional spheroid and mouse aortic ring structures with IL-17A-induced platelet releasate evoked pro-angiogenic responses of ECs. Our findings suggest that IL-17A may critically affect platelet release of pro-angiogenic factors driving ECs towards a pro-angiogenic state.
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Affiliation(s)
- Aikaterini Gatsiou
- RNA Metabolism and Vascular Inflammation Group, Center of Molecular Medicine, Institute of Cardiovascular Regeneration, Johann Wolfgang Goethe University, 60596 Frankfurt am Main, Germany; (A.G.); (K.S.)
- Laboratory of Clinical Biochemistry, Atherothrombosis Research Center, University of Ioannina, 45110 Ioannina, Greece;
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE1 3BZ, UK
| | - Kateryna Sopova
- RNA Metabolism and Vascular Inflammation Group, Center of Molecular Medicine, Institute of Cardiovascular Regeneration, Johann Wolfgang Goethe University, 60596 Frankfurt am Main, Germany; (A.G.); (K.S.)
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE1 3BZ, UK
- Department of Cardiology, Freeman Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne NE7 7DN, UK
| | - Alexandros Tselepis
- Laboratory of Clinical Biochemistry, Atherothrombosis Research Center, University of Ioannina, 45110 Ioannina, Greece;
| | - Konstantinos Stellos
- RNA Metabolism and Vascular Inflammation Group, Center of Molecular Medicine, Institute of Cardiovascular Regeneration, Johann Wolfgang Goethe University, 60596 Frankfurt am Main, Germany; (A.G.); (K.S.)
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE1 3BZ, UK
- Department of Cardiology, Freeman Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne NE7 7DN, UK
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Chambon C, Neyraud E, Sayd T, Bros P, Di Biagio R, Hyvrier F, Féart C, André P, Rodriguez-Artalejo F, Lopez-Garcia E, Garcia-Esquinas E, Gomez-Cabrero D, Proctor G, Morzel M. The salivary proteome reflects some traits of dietary habits in diabetic and non-diabetic older adults. Eur J Nutr 2021; 60:4331-4344. [PMID: 34041584 DOI: 10.1007/s00394-021-02584-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/11/2021] [Indexed: 02/08/2023]
Abstract
PURPOSE Objective markers of usual diet are of interest as alternative or validating tools in nutritional epidemiology research. The main purpose of the work was to assess whether saliva protein composition can reflect dietary habits in older adults, and how type 2 diabetes impacted on the saliva-diet correlates. METHODS 214 participants were selected from 2 European cohorts of community-dwelling older adults (3C-Bordeaux and Seniors-ENRICA-2), using a case-control design nested in each cohort. Cases were individuals with type 2 diabetes. Dietary information was obtained using the Mediterranean Diet Adherence Screener (MEDAS). Saliva was successfully obtained from 211 subjects, and its proteome analyzed by liquid chromatography-tandem mass spectrometry. RESULTS The relative abundance of 246 saliva proteins was obtained across all participants. The salivary proteome differed depending on the intake level of some food groups (especially vegetables, fruits, sweet snacks and red meat), in a diabetic status- and cohort-specific manner. Gene Set Enrichment Analysis suggested that some biological processes were consistently affected by diet across cohorts, for example enhanced platelet degranulation in high consumers of sweet snacks. Minimal models were then fitted to predict dietary variables by sociodemographic, clinical and salivary proteome variables. For the food group «sweet snacks», selected salivary proteins contributed to the predictive model and improved its performance in the Seniors-ENRICA-2 cohort and when both cohorts were combined. CONCLUSION Saliva proteome composition of elderly individuals can reflect some aspects of dietary patterns.
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Affiliation(s)
- Christophe Chambon
- INRAE, Plateforme d'Exploration du Métabolisme Composante Protéome PFEMcp, St-Genès-Champanelle, France
| | - Eric Neyraud
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche-Comté, Dijon, France
| | - Thierry Sayd
- INRAE, Plateforme d'Exploration du Métabolisme Composante Protéome PFEMcp, St-Genès-Champanelle, France
| | - Pauline Bros
- INRAE, Plateforme d'Exploration du Métabolisme Composante Protéome PFEMcp, St-Genès-Champanelle, France
| | - Romane Di Biagio
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche-Comté, Dijon, France
| | - Frank Hyvrier
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche-Comté, Dijon, France
| | - Catherine Féart
- Université de Bordeaux, Inserm, BPH, Team LEHA, UMR 1219, Bordeaux, France
| | - Perrine André
- Université de Bordeaux, Inserm, BPH, Team LEHA, UMR 1219, Bordeaux, France
| | - Fernando Rodriguez-Artalejo
- Department of Preventive Medicine and Public Health, Universidad Autónoma de Madrid and CIBERESP, Madrid, Spain.,Cardiovascular and Nutritional Epidemiology Group, IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid), Madrid, Spain.,IMDEA-Food Institute, Madrid, Spain
| | - Esther Lopez-Garcia
- Department of Preventive Medicine and Public Health, Universidad Autónoma de Madrid and CIBERESP, Madrid, Spain.,Cardiovascular and Nutritional Epidemiology Group, IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid), Madrid, Spain.,IMDEA-Food Institute, Madrid, Spain
| | - Esther Garcia-Esquinas
- Department of Preventive Medicine and Public Health, Universidad Autónoma de Madrid and CIBERESP, Madrid, Spain.,Cardiovascular and Nutritional Epidemiology Group, IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid), Madrid, Spain
| | - David Gomez-Cabrero
- Centre for Host Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College, London, UK
| | - Gordon Proctor
- Centre for Host Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College, London, UK
| | - Martine Morzel
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche-Comté, Dijon, France.
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9
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Neubauer K, Jurk K, Petermann V, Kumm E, Zieger B. Impaired Platelet Function in Sept8-Deficient Mice In Vitro. Thromb Haemost 2021; 121:484-494. [PMID: 33202444 DOI: 10.1055/s-0040-1718733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Septins (Septs) are a widely expressed protein family of 13 mammalian members, recognized as a unique component of the cytoskeleton. In human platelets, we previously described that SEPT4 and SEPT8 are localized surrounding α-granules and move to the platelet surface after activation, indicating a possible role in platelet physiology. In this study, we investigated the impact of Sept8 on platelet function in vitro using Sept8-deficient mouse platelets. Deletion of Sept8 in mouse platelets caused a pronounced defect in activation of the fibrinogen receptor integrin αIIbβ3, α-granule exocytosis, and aggregation, especially in response to the glycoprotein VI agonist convulxin. In contrast, δ-granule and lysosome exocytosis of Sept8-deficient platelets was comparable to wild-type platelets. Sept8-deficient platelet binding to immobilized fibrinogen under static conditions was diminished and spreading delayed. The procoagulant activity of Sept8-deficient platelets was reduced in response to convulxin as determined by lactadherin binding. Also thrombin generation was decreased relative to controls. Thus, Sept8 is required for efficient integrin αIIbβ3 activation, α-granule release, platelet aggregation, and contributes to platelet-dependent thrombin generation. These results revealed Sept8 as a modulator of distinct platelet functions involved in primary and secondary hemostatic processes.
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Affiliation(s)
- Katharina Neubauer
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Kerstin Jurk
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Victoria Petermann
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Elena Kumm
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Barbara Zieger
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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10
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Septins in Infections: Focus on Viruses. Pathogens 2021; 10:pathogens10030278. [PMID: 33801245 PMCID: PMC8001386 DOI: 10.3390/pathogens10030278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/17/2021] [Accepted: 02/25/2021] [Indexed: 11/17/2022] Open
Abstract
Human septins comprise a family of 13 genes that encode conserved GTP-binding proteins. They form nonpolar complexes, which assemble into higher-order structures, such as bundles, scaffolding structures, or rings. Septins are counted among the cytoskeletal elements. They interact with the actin and microtubule networks and can bind to membranes. Many cellular functions with septin participation have been described in the literature, including cytokinesis, motility, forming of scaffolding platforms or lateral diffusion barriers, vesicle transport, exocytosis, and recognition of micron-scale curvature. Septin dysfunction has been implicated in diverse human pathologies, including neurodegeneration and tumorigenesis. Moreover, septins are thought to affect the outcome of host–microbe interactions. Implication of septins has been demonstrated in fungal, bacterial, and viral infections. Knowledge on the precise function of a particular septin in the different steps of the virus infection and replication cycle is still limited. Published data for vaccinia virus (VACV), hepatitis C virus (HCV), influenza A virus (H1N1 and H5N1), human herpesvirus 8 (HHV-8), and Zika virus (ZIKV), all of major concern for public health, will be discussed here.
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11
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Cremer SE, Catalfamo JL, Goggs R, Seemann SE, Kristensen AT, Szklanna PB, Maguire PB, Brooks MB. The canine activated platelet secretome (CAPS): A translational model of thrombin-evoked platelet activation response. Res Pract Thromb Haemost 2021; 5:55-68. [PMID: 33537530 PMCID: PMC7845059 DOI: 10.1002/rth2.12450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/20/2020] [Accepted: 10/07/2020] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Domestic dogs represent a translational animal model to study naturally occurring human disease. Proteomics has emerged as a promising tool for characterizing human platelet pathophysiology; thus a detailed characterization of the core canine activated platelet secretome (CAPS) will enhance utilization of the canine model. The objectives of this study were development of a robust, high throughput, label-free approach for proteomic identification and quantification of the canine platelet (i) thrombin releasate proteins, and (ii) the protein subgroup that constitutes CAPS. METHODS Platelets were isolated from 10 healthy dogs and stimulated with 50 nmol/L of γ-thrombin or saline. Proteins were in-solution trypsin-digested and analyzed by nano-liquid chromatography-tandem spectrometry. Core releasate proteins were defined as those present in 10 of 10 dogs, and CAPS defined as releasate proteins with a significantly higher abundance in stimulated versus saline controls (corrected P < .05). RESULTS A total of 2865 proteins were identified; 1126 releasate proteins were present in all dogs, 650 were defined as CAPS. Among the differences from human platelets were a canine lack of platelet factor 4 and vascular endothelial growth factor C, and a 10- to 20-fold lower concentration of proteins such as haptoglobin, alpha-2 macroglobulin, von Willebrand factor, and amyloid-beta A4. Twenty-eight CAPS proteins, including cytokines, adhesion molecules, granule proteins, and calcium regulatory proteins have not previously been attributed to human platelets. CONCLUSIONS CAPS proteins represent a robust characterization of a large animal platelet secretome and a novel tool to model platelet physiology, pathophysiology, and to identify translational biomarkers of platelet-mediated disease.
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Affiliation(s)
- Signe E. Cremer
- Department of Veterinary Clinical SciencesUniversity of CopenhagenCopenhagenDenmark
- Department of Population Medicine and Diagnostic SciencesCornell UniversityIthacaNYUSA
| | - James L. Catalfamo
- Department of Population Medicine and Diagnostic SciencesCornell UniversityIthacaNYUSA
| | - Robert Goggs
- Department of Clinical SciencesCornell UniversityIthacaNYUSA
| | - Stefan E. Seemann
- Department of Veterinary and Animal SciencesCenter for Non‐coding RNA in Technology and HealthUniversity of CopenhagenCopenhagenDenmark
| | | | - Paulina B. Szklanna
- School of Biomolecular and Biomedical ScienceUniversity College DublinDublinIreland
| | - Patricia B. Maguire
- School of Biomolecular and Biomedical ScienceUniversity College DublinDublinIreland
| | - Marjory B. Brooks
- Department of Population Medicine and Diagnostic SciencesCornell UniversityIthacaNYUSA
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12
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Kyselova A, Elgheznawy A, Wittig I, Heidler J, Mann AW, Ruf W, Fleming I, Randriamboavonjy V. Platelet-derived calpain cleaves the endothelial protease-activated receptor 1 to induce vascular inflammation in diabetes. Basic Res Cardiol 2020; 115:75. [PMID: 33258989 PMCID: PMC7716944 DOI: 10.1007/s00395-020-00833-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/11/2020] [Indexed: 12/30/2022]
Abstract
Diabetes mellitus is a major risk factor for cardiovascular disease. Platelets from diabetic patients are hyperreactive and release microparticles that carry activated cysteine proteases or calpains. Whether platelet-derived calpains contribute to the development of vascular complications in diabetes is unknown. Here we report that platelet-derived calpain1 (CAPN1) cleaves the protease-activated receptor 1 (PAR-1) on the surface of endothelial cells, which then initiates a signaling cascade that includes the activation of the tumor necrosis factor (TNF)-α converting enzyme (TACE). The latter elicits the shedding of the endothelial protein C receptor and the generation of TNF-α, which in turn, induces intracellular adhesion molecule (ICAM)-1 expression to promote monocyte adhesion. All of the effects of CAPN1 were mimicked by platelet-derived microparticles from diabetic patients or from wild-type mice but not from CAPN1−/− mice, and were not observed in PAR-1-deficient endothelial cells. Importantly, aortae from diabetic mice expressed less PAR-1 but more ICAM-1 than non-diabetic mice, effects that were prevented by treating diabetic mice with a calpain inhibitor as well as by the platelet specific deletion of CAPN1. Thus, platelet-derived CAPN1 contributes to the initiation of the sterile vascular inflammation associated with diabetes via the cleavage of PAR-1 and the release of TNF-α from the endothelial cell surface.
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Affiliation(s)
- Anastasia Kyselova
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany
| | - Amro Elgheznawy
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany
| | - Ilka Wittig
- German Center for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany.,Functional Proteomics, SFB 815 Core Unit, Goethe University, Frankfurt am Main, Germany
| | - Juliana Heidler
- German Center for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany.,Functional Proteomics, SFB 815 Core Unit, Goethe University, Frankfurt am Main, Germany
| | | | - Wolfram Ruf
- German Center for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany.,Center for Thrombosis and Hemostasis, University Medical Center, Mainz, Germany.,Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany
| | - Voahanginirina Randriamboavonjy
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany. .,German Center for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany.
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13
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Kyselova A, Siragusa M, Anthes J, Solari FA, Loroch S, Zahedi RP, Walter U, Fleming I, Randriamboavonjy V. Cyclin Y is expressed in Platelets and Modulates Integrin Outside-in Signaling. Int J Mol Sci 2020; 21:ijms21218239. [PMID: 33153214 PMCID: PMC7662234 DOI: 10.3390/ijms21218239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/26/2020] [Accepted: 11/01/2020] [Indexed: 12/17/2022] Open
Abstract
Diabetes is associated with platelet hyper-reactivity and enhanced risk of thrombosis development. Here we compared protein expression in platelets from healthy donors and diabetic patients to identify differentially expressed proteins and their possible function in platelet activation. Mass spectrometry analyses identified cyclin Y (CCNY) in platelets and its reduced expression in platelets from diabetic patients, a phenomenon that could be attributed to the increased activity of calpains. To determine the role of CCNY in platelets, mice globally lacking the protein were studied. CCNY-/- mice demonstrated lower numbers of circulating platelets but platelet responsiveness to thrombin and a thromboxane A2 analogue were comparable with that of wild-type mice, as was agonist-induced α and dense granule secretion. CCNY-deficient platelets demonstrated enhanced adhesion to fibronectin and collagen as well as an attenuated spreading and clot retraction, indicating an alteration in "outside in" integrin signalling. This phenotype was accompanied by a significant reduction in the agonist-induced tyrosine phosphorylation of β3 integrin. Taken together we have shown that CCNY is present in anucleated platelets where it is involved in the regulation of integrin-mediated outside in signalling associated with thrombin stimulation.
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Affiliation(s)
- Anastasia Kyselova
- Institute for Vascular Signaling, Centre of Molecular Medicine, Goethe University, Frankfurt am Main, 60590 Frankfurt, Germany; (A.K.); (M.S.); (J.A.); (I.F.)
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, 17475 Greifswald, Germany; (S.L.); (R.P.Z.); (U.W.)
| | - Mauro Siragusa
- Institute for Vascular Signaling, Centre of Molecular Medicine, Goethe University, Frankfurt am Main, 60590 Frankfurt, Germany; (A.K.); (M.S.); (J.A.); (I.F.)
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, 17475 Greifswald, Germany; (S.L.); (R.P.Z.); (U.W.)
| | - Julian Anthes
- Institute for Vascular Signaling, Centre of Molecular Medicine, Goethe University, Frankfurt am Main, 60590 Frankfurt, Germany; (A.K.); (M.S.); (J.A.); (I.F.)
| | - Fiorella Andrea Solari
- Leibniz–Institute for Analytical Sciences (ISAS)- e.V., Otto-Hahn-Str. 6b, 44227 Dortmund, Germany;
| | - Stefan Loroch
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, 17475 Greifswald, Germany; (S.L.); (R.P.Z.); (U.W.)
- Leibniz–Institute for Analytical Sciences (ISAS)- e.V., Otto-Hahn-Str. 6b, 44227 Dortmund, Germany;
| | - René P. Zahedi
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, 17475 Greifswald, Germany; (S.L.); (R.P.Z.); (U.W.)
- Leibniz–Institute for Analytical Sciences (ISAS)- e.V., Otto-Hahn-Str. 6b, 44227 Dortmund, Germany;
| | - Ulrich Walter
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, 17475 Greifswald, Germany; (S.L.); (R.P.Z.); (U.W.)
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, 55131 Mainz, Germany
| | - Ingrid Fleming
- Institute for Vascular Signaling, Centre of Molecular Medicine, Goethe University, Frankfurt am Main, 60590 Frankfurt, Germany; (A.K.); (M.S.); (J.A.); (I.F.)
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, 17475 Greifswald, Germany; (S.L.); (R.P.Z.); (U.W.)
| | - Voahanginirina Randriamboavonjy
- Institute for Vascular Signaling, Centre of Molecular Medicine, Goethe University, Frankfurt am Main, 60590 Frankfurt, Germany; (A.K.); (M.S.); (J.A.); (I.F.)
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, 17475 Greifswald, Germany; (S.L.); (R.P.Z.); (U.W.)
- Correspondence: ; Tel.: +49-69-6301-6973; Fax: +49-69-6301-86880
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14
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Dos Santos LRB, Fleming I. Role of cytochrome P450-derived, polyunsaturated fatty acid mediators in diabetes and the metabolic syndrome. Prostaglandins Other Lipid Mediat 2019; 148:106407. [PMID: 31899373 DOI: 10.1016/j.prostaglandins.2019.106407] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 11/14/2019] [Accepted: 12/23/2019] [Indexed: 12/17/2022]
Abstract
Over the last decade, cases of metabolic syndrome and type II diabetes have increased exponentially. Exercise and ω-3 polyunsaturated fatty acid (PUFA)-enriched diets are usually prescribed but no therapy is effectively able to restore the impaired glucose metabolism, hypertension, and atherogenic dyslipidemia encountered by diabetic patients. PUFAs are metabolized by different enzymes into bioactive metabolites with anti- or pro-inflammatory activity. One important class of PUFA metabolizing enzymes are the cytochrome P450 (CYP) enzymes that can generate a series of bioactive products, many of which have been attributed protective/anti-inflammatory and insulin-sensitizing effects in animal models. PUFA epoxides are, however, further metabolized by the soluble epoxide hydrolase (sEH) to fatty acid diols. The biological actions of the latter are less well understood but while low concentrations may be biologically important, higher concentrations of diols derived from linoleic acid and docosahexaenoic acid have been linked with inflammation. One potential application for sEH inhibitors is in the treatment of diabetic retinopathy where sEH expression and activity is elevated as are levels of a diol of docosahexaenoic acid that can induce the destabilization of the retina vasculature.
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Affiliation(s)
- Laila R B Dos Santos
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt, Germany; German Centre for Cardiovascular Research (DZHK) Partner Site Rhein-Main, Germany
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt, Germany; German Centre for Cardiovascular Research (DZHK) Partner Site Rhein-Main, Germany.
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15
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Proteomic profiling of the thrombin-activated canine platelet secretome (CAPS). PLoS One 2019; 14:e0224891. [PMID: 31721811 PMCID: PMC6853320 DOI: 10.1371/journal.pone.0224891] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 10/23/2019] [Indexed: 11/27/2022] Open
Abstract
Domestic dogs share the same environment as humans, and they represent a valuable animal model to study naturally-occurring human disease. Platelet proteomics holds promise for the discovery of biomarkers that capture the contribution of platelets to the pathophysiology of many disease states, however, canine platelet proteomic studies are lacking. Our study objectives were to establish a protocol for proteomic identification and quantification of the thrombin-activated canine platelet secretome (CAPS), and to compare the CAPS proteins to human and murine platelet proteomic data. Washed platelets were isolated from healthy dogs, and stimulated with saline (control) or gamma-thrombin (releasate). Proteins were separated by SDS-page, trypsin-digested and analyzed by liquid chromatography and tandem mass spectrometry (MS). CAPS proteins were defined as those with a MS1-abundance ratio of two or more for releasate vs. unstimulated saline control. A total of 1,918 proteins were identified, with 908 proteins common to all dogs and 693 characterized as CAPS proteins. CAPS proteins were similar to human and murine platelet secretomes and were highly represented in hemostatic pathways. Differences unique to CAPS included replacement of platelet factor 4 with other cleavage products of platelet basic protein (e.g. interleukin-8), novel proteins (e.g. C-C motif chemokine 14), and proteins in relatively high (e.g. protease nexin-1) or low (e.g. von Willebrand factor) abundance. This study establishes the first in-depth platelet releasate proteome from healthy dogs with a reference database of 693 CAPS proteins. Similarities between CAPS and the human secretome confirm the utility of dogs as translational models of human disease, but we also identify differences unique to canine platelets. Our findings provide a resource for further investigations into disease-related CAPS profiles, and for comparative pathway analyses of platelet activation among species.
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16
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Siuda D, Randriamboavonjy V, Fleming I. Regulation of calpain 2 expression by miR-223 and miR-145. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2019; 1862:194438. [PMID: 31634637 DOI: 10.1016/j.bbagrm.2019.194438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/26/2019] [Accepted: 09/24/2019] [Indexed: 12/12/2022]
Abstract
Calpain 2 (CAPN2) is a Ca2+-dependent cysteine-protease that is involved in different cellular processes. Despite its important role, little is known about how CAPN2 expression is regulated. This study addressed the potential regulation of CAPN2 by microRNAs (miRNAs) in human endothelial cells. Two miRNAs were found to regulate CAPN2 expression by two distinct mechanisms, one direct and the other indirect. MiR-223 directly targeted CAPN2 by binding to the CAPN2 3'-untranslated region. Mir-223 overexpression decreased CAPN2 protein levels in cultured cells and in mice miR-223 antagonism led to an increase in CAPN2 protein in lung tissue. MiR-145 overexpression also decreased CAPN2 expression but did not affect a CAPN2 luciferase construct, indicating that the effect was indirect. MiR-145 targets histone deacetylase (HDAC) 2, and HDAC inhibition transcriptionally regulated CAPN2 expression by hyperacetylation of the promoter of CAPN2 gene and a subsequent decrease in polymerase 2 binding. Indeed, down regulation of HDAC2 by miR-145 not only decreased CAPN2 protein expression and calpain activity, but also protected paxillin against calpain-dependent degradation. Thus, protein levels of CAPN2 are regulated by miR-223, acting directly on the 3'-untranslated region as well as by miR-145, which acts via an increase in HDAC2. ENZYMES: Calpain 2 (EC 3.4.22.53), histone deacetylase 2 (EC 3.5.1.98).
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Affiliation(s)
- Daniel Siuda
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany; German Centre for Cardiovascular Research (DZHK), Partner site Rhine-Main, Frankfurt am Main, Germany
| | - Voahanginirina Randriamboavonjy
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany; German Centre for Cardiovascular Research (DZHK), Partner site Rhine-Main, Frankfurt am Main, Germany
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany; German Centre for Cardiovascular Research (DZHK), Partner site Rhine-Main, Frankfurt am Main, Germany.
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17
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Randriamboavonjy V, Kyselova A, Fleming I. Redox Regulation of Calpains: Consequences on Vascular Function. Antioxid Redox Signal 2019; 30:1011-1026. [PMID: 30266074 DOI: 10.1089/ars.2018.7607] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
SIGNIFICANCE Calpains (CAPNs) are a family of calcium-activated cysteine proteases. The ubiquitous isoforms CAPN1 and CAPN2 have been involved in the maintenance of vascular integrity, but uncontrolled CAPN activation plays a role in the pathogenesis of vascular diseases. Recent Advances: It is well accepted that chronic and acute overproduction of reactive oxygen species (ROS) is associated with the development of vascular diseases. There is increasing evidence that ROS can also affect the CAPN activity, suggesting CAPN as a potential link between oxidative stress and vascular disease. CRITICAL ISSUES The physiopathological relevance of ROS in regulating the CAPN activity is not fully understood but seems to involve direct effects on CAPNs, redox modifications of CAPN substrates, as well as indirect effect on CAPNs via changes in Ca2+ levels. Finally, CAPNs can also stimulate ROS production; however, data showing in which context ROS are the causes or the consequences of CAPN activation are missing. FUTURE DIRECTIONS Detailed characterization of the molecular mechanisms underlying the regulation of the different members of the CAPN system by specific ROS would help understanding the pathophysiological role of CAPN in the modulation of the vascular function. Moreover, given that CAPNs have been found in different cellular compartments such as mitochondria and nucleus as well as in the extracellular space, identification of new CAPN targets as well as their functional consequences would add new insights in the function of these enigmatic proteases.
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Affiliation(s)
- Voahanginirina Randriamboavonjy
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany.,2 German Center of Cardiovascular Research (DZHK), Partner Site Rhein-Main, Frankfurt am Main, Germany
| | - Anastasia Kyselova
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany.,2 German Center of Cardiovascular Research (DZHK), Partner Site Rhein-Main, Frankfurt am Main, Germany
| | - Ingrid Fleming
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany.,2 German Center of Cardiovascular Research (DZHK), Partner Site Rhein-Main, Frankfurt am Main, Germany
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18
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19
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Abstract
SIGNIFICANCE Platelets are anucleate blood cells that are involved in hemostasis and thrombosis. Although no longer able to generate ribonucleic acid (RNA) de novo, platelets contain messenger RNA (mRNA), YRNA fragments, and premature microRNAs (miRNAs) that they inherit from megakaryocytes. Recent Advances: Novel sequencing techniques have helped identify the unexpectedly large number of RNA species present in platelets. Throughout their life time, platelets can process the pre-existing pool of premature miRNA to give the fully functional miRNA that can regulate platelet protein expression and function. CRITICAL ISSUES Platelets make a major contribution to the circulating miRNA pool but platelet activation can have major consequences on Dicer levels and thus miRNA maturation, which has implications for studies that are focused on screening-stored platelets. FUTURE DIRECTIONS It will be important to determine the importance of platelets as donors for miRNA-containing microvesicles that can be taken up and processed by other (particularly vascular) cells, thus contributing to homeostasis as well as disease progression. Antioxid. Redox Signal. 29, 902-921.
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Affiliation(s)
- Amro Elgheznawy
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University , Frankfurt am Main, Germany .,2 German Center for Cardiovascular Research (DZHK) , Partner site Rhein-Main, Frankfurt am Main, Germany
| | - Ingrid Fleming
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University , Frankfurt am Main, Germany .,2 German Center for Cardiovascular Research (DZHK) , Partner site Rhein-Main, Frankfurt am Main, Germany
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20
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Platelet communication with the vascular wall: role of platelet-derived microparticles and non-coding RNAs. Clin Sci (Lond) 2018; 132:1875-1888. [PMID: 30185611 DOI: 10.1042/cs20180580] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/31/2018] [Accepted: 08/09/2018] [Indexed: 12/24/2022]
Abstract
Platelets play an important role in vascular homeostasis through their interaction with circulating blood cells as well as the vascular wall. Platelet-mediated communication with other cells can take the form of direct cell-cell interactions via membrane receptors or indirectly through the release of different soluble factors stored in their granules as well as through the release of microparticles. The latter carry different proteins and RNAs which are transferred to the target cells. The aim of this review is to discuss the role of platelet-derived factors, adhesion molecules as well as RNAs as mediators of the cross-talk between platelets and the vessel wall.
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21
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Guo Y, Yang X, He J, Liu J, Yang S, Dong H. Important roles of the Ca 2+-sensing receptor in vascular health and disease. Life Sci 2018; 209:217-227. [PMID: 30098342 DOI: 10.1016/j.lfs.2018.08.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/30/2018] [Accepted: 08/06/2018] [Indexed: 02/07/2023]
Abstract
Ca2+-sensing receptor (CaSR), a member of G protein-coupled receptor family, is widely expressed in the vascular system, including perivascular neurons, vascular endothelial cells (VECs) and vascular smooth muscle cells (VSMCs). When stimulated, CaSR can further increase the cytosolic Ca2+ concentration ([Ca2+]cyt) in two ways: intracellular Ca2+ release from endo/sarcoplasmic reticulum (ER/SR) and extracellular Ca2+ entry through Ca2+-permeable cation channels. In endothelium, increased Ca2+ subsequently activate nitric oxide synthase (NOS) and intermediate conductance Ca2+-activated K+ channels (IKCa), resulting in vasodilation through NOS-mediated NO release or membrane hyperpolarization. In VSMCs, CaSR-induced intracellular Ca2+ increase causes blood vessel constriction. CaSR activation predominantly induces vasorelaxation of whole vascular tissues through VECs-dependent mechanisms; however, CaSR-induced Ca2+ signaling in VSMCs may play a braking role in CaSR-mediated vasorelaxation. Emerging evidence reveals the importance of CaSR in the regulation of vascular tone and blood pressure. Here, we summarized recent advances in CaSR-mediated vascular reaction and the underlying mechanisms in different species, including humans. In addition, several studies have demonstrated that CaSR dysfunction may be associated with some fatal vascular diseases, such as pulmonary arterial hypertension, primary hypertension, diabetes, acute myocardial infarction and vascular calcification. With the advance of studies on CaSR in vascular health and disease, it is expected positive modulators or negative modulators of CaSR used for the treatment of specific diseases may be promising therapeutic options for the prevention and/or treatment of vascular diseases.
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Affiliation(s)
- Yanjun Guo
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xin Yang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Jialin He
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Jingjing Liu
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Shiming Yang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Hui Dong
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China.
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22
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Mezei Z, Váczi S, Török V, Stumpf C, Ónody R, Földesi I, Szabó G. Effects of kisspeptin on diabetic rat platelets. Can J Physiol Pharmacol 2017; 95:1319-1326. [DOI: 10.1139/cjpp-2017-0036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Hyperglycemia, hyperlipidemia, and free radicals result in platelet activation and atherogenesis. Kisspeptin (KP) is able to regulate metabolism, hemostasis, and the development of atherosclerosis. We examined whether platelet aggregation of streptozotocin-induced diabetic rats depends on the inducer type and if KP-13 and RF-9 (a kisspeptin receptor modifier) can influence platelet function. We measured the speed and the maximum of aggregation, along with the area under the curve. Serum glucose and calcium levels and urine formation of diabetic animals increased, while the body mass and platelet count decreased. Collagen was the most effective inducer of platelet aggregation. The aggregability of nondiabetic platelets was elevated in the presence of 5 × 10−8 mol/L KP-13. This effect was less expressed in diabetic animals. The effectivity of RF-9 was stronger than that of KP-13 in nondiabetic platelets, however it was ineffective in diabetic animals. RF-9 pre-treatment did not change the effects of 5 × 10−8 mol/L KP-13 in either animal group. The in vivo activation of diabetic platelets, which may be due to elevated serum calcium, induces thrombocytopenia and may lead to reduced in vitro aggregability. We could not demonstrate the antagonistic effect of RF-9 against KP-13 in isolated platelets.
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Affiliation(s)
- Zsófia Mezei
- Department of Pathophysiology, University of Szeged, Semmelweis u. 1, 6725 Szeged, Hungary
| | - Sándor Váczi
- Department of Pathophysiology, University of Szeged, Semmelweis u. 1, 6725 Szeged, Hungary
| | - Viktória Török
- Department of Pathophysiology, University of Szeged, Semmelweis u. 1, 6725 Szeged, Hungary
| | - Csaba Stumpf
- Department of Pathophysiology, University of Szeged, Semmelweis u. 1, 6725 Szeged, Hungary
| | - Rita Ónody
- Institute of Laboratory Medicine, University of Szeged, Semmelweis u. 6, 6725 Szeged, Hungary
| | - Imre Földesi
- Institute of Laboratory Medicine, University of Szeged, Semmelweis u. 6, 6725 Szeged, Hungary
| | - Gyula Szabó
- Department of Pathophysiology, University of Szeged, Semmelweis u. 1, 6725 Szeged, Hungary
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23
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Kling A, Jantos K, Mack H, Hornberger W, Drescher K, Nimmrich V, Relo A, Wicke K, Hutchins CW, Lao Y, Marsh K, Moeller A. Discovery of Novel and Highly Selective Inhibitors of Calpain for the Treatment of Alzheimer's Disease: 2-(3-Phenyl-1H-pyrazol-1-yl)-nicotinamides. J Med Chem 2017; 60:7123-7138. [PMID: 28759231 DOI: 10.1021/acs.jmedchem.7b00731] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Calpain overactivation has been implicated in a variety of pathological disorders including ischemia/reperfusion injury, cataract formation, and neurodegenerative diseases such as Alzheimer's disease (AD). Herein we describe our efforts leading to the identification of ketoamide-based 2-(3-phenyl-1H-pyrazol-1-yl)nicotinamides as potent and reversible inhibitors of calpain with high selectivity versus related cysteine protease cathepsins, other proteases, and receptors. Broad efficacy in a set of preclinical models relevant to AD suggests that inhibition of calpain represents an attractive approach with potential benefit for the treatment of AD.
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Affiliation(s)
- Andreas Kling
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Katja Jantos
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Helmut Mack
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Wilfried Hornberger
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Karla Drescher
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Volker Nimmrich
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Ana Relo
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Karsten Wicke
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
| | - Charles W Hutchins
- AbbVie Inc. , 1 North Waukegan Road, North Chicago, Illinois 60064-6125, United States
| | - Yanbin Lao
- AbbVie Inc. , 1 North Waukegan Road, North Chicago, Illinois 60064-6125, United States
| | - Kennan Marsh
- AbbVie Inc. , 1 North Waukegan Road, North Chicago, Illinois 60064-6125, United States
| | - Achim Moeller
- Neuroscience Research, AbbVie Deutschland GmbH & Co. KG , Knollstrasse, 67061 Ludwigshafen, Germany
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24
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Sunderland N, Skroblin P, Barwari T, Huntley RP, Lu R, Joshi A, Lovering RC, Mayr M. MicroRNA Biomarkers and Platelet Reactivity: The Clot Thickens. Circ Res 2017; 120:418-435. [PMID: 28104774 DOI: 10.1161/circresaha.116.309303] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/20/2016] [Accepted: 12/20/2016] [Indexed: 12/16/2022]
Abstract
Over the last few years, several groups have evaluated the potential of microRNAs (miRNAs) as biomarkers for cardiometabolic disease. In this review, we discuss the emerging literature on the role of miRNAs and other small noncoding RNAs in platelets and in the circulation, and the potential use of miRNAs as biomarkers for platelet activation. Platelets are a major source of miRNAs, YRNAs, and circular RNAs. By harnessing multiomics approaches, we may gain valuable insights into their potential function. Because not all miRNAs are detectable in the circulation, we also created a gene ontology annotation for circulating miRNAs using the gene ontology term extracellular space as part of blood plasma. Finally, we share key insights for measuring circulating miRNAs. We propose ways to standardize miRNA measurements, in particular by using platelet-poor plasma to avoid confounding caused by residual platelets in plasma or by adding RNase inhibitors to serum to reduce degradation. This should enhance comparability of miRNA measurements across different cohorts. We provide recommendations for future miRNA biomarker studies, emphasizing the need for accurate interpretation within a biological and methodological context.
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Affiliation(s)
- Nicholas Sunderland
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.)
| | - Philipp Skroblin
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.)
| | - Temo Barwari
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.)
| | - Rachael P Huntley
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.)
| | - Ruifang Lu
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.)
| | - Abhishek Joshi
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.)
| | - Ruth C Lovering
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.)
| | - Manuel Mayr
- From the King's British Heart Foundation Centre, King's College London, United Kingdom (N.S., P.S., T.B., R.L., A.J., M.M.); and Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London, United Kingdom (R.P.H., R.C.L.).
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25
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Calpain 1 cleaves and inactivates prostacyclin synthase in mesenteric arteries from diabetic mice. Basic Res Cardiol 2016; 112:10. [DOI: 10.1007/s00395-016-0596-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/12/2016] [Indexed: 12/18/2022]
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26
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Fejes Z, Póliska S, Czimmerer Z, Káplár M, Penyige A, Gál Szabó G, Beke Debreceni I, Kunapuli SP, Kappelmayer J, Nagy B. Hyperglycaemia suppresses microRNA expression in platelets to increase P2RY12 and SELP levels in type 2 diabetes mellitus. Thromb Haemost 2016; 117:529-542. [PMID: 27975100 DOI: 10.1160/th16-04-0322] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 11/26/2016] [Indexed: 12/19/2022]
Abstract
Megakaryocyte (MK)-derived miRNAs have been detected in platelets. Here, we analysed the expression of platelet and circulating miR-223, miR-26b, miR-126 and miR-140 that might be altered with their target mRNAs in type 2 diabetes mellitus (DM2). MiRNAs were isolated from leukocyte-depleted platelets and plasma samples obtained from 28 obese DM2, 19 non-DM obese and 23 healthy individuals. The effect of hyperglycaemia on miRNAs was also evaluated in MKs using MEG-01 and K562 cells under hyperglycaemic conditions after 8 hours up to four weeks. Quantitation of mature miRNA, pre-miRNAs and target mRNA levels (P2RY12 and SELP) were measured by RT-qPCR. To prove the association of miR-26b and miR-140 with SELP (P-selectin) mRNA level, overexpression or inhibition of these miRNAs in MEG-01 MKs was performed using mimics or anti-miRNAs, respectively. The contribution of calpain substrate Dicer to modulation of miRNAs was studied by calpain inhibition. Platelet activation was evaluated via surface P-selectin by flow cytometry. Mature and pre-forms of investigated miRNAs were significantly reduced in DM2, and platelet P2RY12 and SELP mRNA levels were elevated by two-fold at increased platelet activation compared to controls. Significantly blunted miRNA expressions were observed by hyperglycaemia in MEG-01 and K562-MK cells versus baseline values, while the manipulation of miR-26b and miR-140 expression affected SELP mRNA level. Calpeptin pretreatment restored miRNA levels in hyperglycaemic MKs. Overall, miR-223, miR-26b, miR-126 and miR-140 are expressed at a lower level in platelets and MKs in DM2 causing upregulation of P2RY12 and SELP mRNAs that may contribute to adverse platelet function.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Béla Nagy
- Béla Nagy Jr, MD, PhD, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98. H-4032, Debrecen, Hungary, Tel.: +36 52 340 006, Fax: +36 52 417 631, E-mail:
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27
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Izquierdo I, García Á. Platelet proteomics applied to the search for novel antiplatelet therapeutic targets. Expert Rev Proteomics 2016; 13:993-1006. [DOI: 10.1080/14789450.2016.1246188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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28
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Kantserova NP, Lysenko LA, Ushakova NV, Krylov VV, Nemova NN. [Modulation of Ca(2+)-Dependent Proteiolysis under the Action of Weak Low-Frequency Magnetic Fields]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016; 41:725-30. [PMID: 27125027 DOI: 10.1134/s1068162015060060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The study aimed to determine the molecular targets of magnetic fields in living objects. Time-dependent effects of weak low-frequency magnetic field tuned to the parametric resonance for calcium ions were studied on model organisms (fish, whelk). The dynamics of Ca(2+)-dependent proteinase activity under the exposure to magnetic fields with given parameters was determined and minimal time of exposure in order to achieve inactivation of these proteinases was find out as well. As hyperactivation of Ca(2+)-dependent proteinases is a basis of degenerative pathology development the therapeutic potential of weak low-frequency magnetic fields enabling to modulate Ca(2+)-dependent proteinase activity is supported.
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29
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Shen Y, Zuo S, Wang Y, Shi H, Yan S, Chen D, Xiao B, Zhang J, Gong Y, Shi M, Tang J, Kong D, Lu L, Yu Y, Zhou B, Duan SZ, Schneider C, Funk CD, Yu Y. Thromboxane Governs the Differentiation of Adipose-Derived Stromal Cells Toward Endothelial Cells In Vitro and In Vivo. Circ Res 2016; 118:1194-207. [PMID: 26957525 DOI: 10.1161/circresaha.115.307853] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 03/08/2016] [Indexed: 12/30/2022]
Abstract
RATIONALE Autologous adipose-derived stromal cells (ASCs) offer great promise as angiogenic cell therapy for ischemic diseases. Because of their limited self-renewal capacity and pluripotentiality, the therapeutic efficacy of ASCs is still relatively low. Thromboxane has been shown to play an important role in the maintenance of vascular homeostasis. However, little is known about the effects of thromboxane on ASC-mediated angiogenesis. OBJECTIVE To explore the role of the thromboxane-prostanoid receptor (TP) in mediating the angiogenic capacity of ASCs in vivo. METHODS AND RESULTS ASCs were prepared from mouse epididymal fat pads and induced to differentiate into endothelial cells (ECs) by vascular endothelial growth factor. Cyclooxygenase-2 expression, thromboxane production, and TP expression were upregulated in ASCs on vascular endothelial growth factor treatment. Genetic deletion or pharmacological inhibition of TP in mouse or human ASCs accelerated EC differentiation and increased tube formation in vitro, enhanced angiogenesis in in vivo Matrigel plugs and ischemic mouse hindlimbs. TP deficiency resulted in a significant cellular accumulation of β-catenin by suppression of calpain-mediated degradation in ASCs. Knockdown of β-catenin completely abrogated the enhanced EC differentiation of TP-deficient ASCs, whereas inhibition of calpain reversed the suppressed angiogenic capacity of TP re-expressed ASCs. Moreover, TP was coupled with Gαq to induce calpain-mediated suppression of β-catenin signaling through calcium influx in ASCs. CONCLUSION Thromboxane restrained EC differentiation of ASCs through TP-mediated repression of the calpain-dependent β-catenin signaling pathway. These results indicate that TP inhibition could be a promising strategy for therapy utilizing ASCs in the treatment of ischemic diseases.
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Affiliation(s)
- Yujun Shen
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Shengkai Zuo
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Yuanyang Wang
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Hongfei Shi
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Shuai Yan
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Di Chen
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Bing Xiao
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Jian Zhang
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Yanjun Gong
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Maohua Shi
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Juan Tang
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Deping Kong
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Luheng Lu
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Yu Yu
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Bin Zhou
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Sheng-Zhong Duan
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Claudio Schneider
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Colin D Funk
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.)
| | - Ying Yu
- From the Key Laboratory of Food Safety Research, CAS Center for Excellence in Molecular Cell Science, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China (Y.S., S.Z., Y.W., S.Y., D.C., B.X., J.Z., Y.G., M.S., J.T., D.K., L.L., Y.Y., B.Z., S.-Z.D., Y.Y.); Department of Nutrition, The NO.2 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China (Y.S., H.S.); Laboratorio Nazionale del Consorzio Interuniversitario per le Biotecnologie, AREA Science Park, Trieste, Italy (C.S.); Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Udine, Italy (C.S.); and Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada (C.D.F.).
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Cabrera-Fuentes HA, Alba-Alba C, Aragones J, Bernhagen J, Boisvert WA, Bøtker HE, Cesarman-Maus G, Fleming I, Garcia-Dorado D, Lecour S, Liehn E, Marber MS, Marina N, Mayr M, Perez-Mendez O, Miura T, Ruiz-Meana M, Salinas-Estefanon EM, Ong SB, Schnittler HJ, Sanchez-Vega JT, Sumoza-Toledo A, Vogel CW, Yarullina D, Yellon DM, Preissner KT, Hausenloy DJ. Meeting report from the 2nd International Symposium on New Frontiers in Cardiovascular Research. Protecting the cardiovascular system from ischemia: between bench and bedside. Basic Res Cardiol 2016; 111:7. [PMID: 26667317 PMCID: PMC4679108 DOI: 10.1007/s00395-015-0527-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 11/26/2015] [Indexed: 12/17/2022]
Abstract
Recent advances in basic cardiovascular research as well as their translation into the clinical situation were the focus at the last "New Frontiers in Cardiovascular Research meeting". Major topics included the characterization of new targets and procedures in cardioprotection, deciphering new players and inflammatory mechanisms in ischemic heart disease as well as uncovering microRNAs and other biomarkers as versatile and possibly causal factors in cardiovascular pathogenesis. Although a number of pathological situations such as ischemia-reperfusion injury or atherosclerosis can be simulated and manipulated in diverse animal models, also to challenge new drugs for intervention, patient studies are the ultimate litmus test to obtain unequivocal information about the validity of biomedical concepts and their application in the clinics. Thus, the open and bidirectional exchange between bench and bedside is crucial to advance the field of ischemic heart disease with a particular emphasis of understanding long-lasting approaches in cardioprotection.
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Affiliation(s)
- Hector A Cabrera-Fuentes
- Institute of Biochemistry, Medical School, Justus-Liebig University, Giessen, Germany
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore, Singapore, Singapore
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Department of Microbiology, Kazan Federal University, Kazan, Russian Federation
- Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, NL, México
| | - Corina Alba-Alba
- Institute of Genetics, Univeristy of the Sea. Puerto Escondido Campus, Oaxaca Oaxacan System of State Universities (SUNEO), Oaxaca, México
| | - Julian Aragones
- Research Unit, Hospital of Santa Cristina, Research Institute Princesa (IP), Autonomous University of Madrid, Madrid, Spain
| | - Jürgen Bernhagen
- Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, Aachen, Germany
| | - William A Boisvert
- Department of Microbiology, Kazan Federal University, Kazan, Russian Federation
- Center for Cardiovascular Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, USA
| | - Hans E Bøtker
- Department of Cardiology, Aarhus University Hospital, Skejby, Aarhus N, Denmark
| | | | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe-University, Frankfurt, Germany
| | | | - Sandrine Lecour
- Hatter Institute and MRC Inter-University Cape Heart Unit, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Elisa Liehn
- Institute for Molecular Cardiovascular Research, RWTH University Hospital Aachen, Aachen, Germany
| | - Michael S Marber
- Department of Cardiology, The Rayne Institute, St Thomas' Campus, King's College London, London, UK
| | - Nephtali Marina
- Department of Clinical Pharmacology, University College London, London, UK
| | - Manuel Mayr
- The James Black Centre, King's College, University of London, London, UK
| | - Oscar Perez-Mendez
- Department of Molecular Biology, National Institute of Cardiology, Mexico City, Mexico
| | - Tetsuji Miura
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Marisol Ruiz-Meana
- Valld'Hebron University Hospital and Research Institute, Barcelona, Spain
| | | | - Sang-Bing Ong
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore, Singapore, Singapore
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Hans J Schnittler
- Institute of Anatomy and Vascular Biology, Westfalian-Wilhelms-University, Münster, Germany
| | - Jose T Sanchez-Vega
- Laboratory of Parasitology, Department of Microbiology and Parasitology, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Adriana Sumoza-Toledo
- Laboratorio Multidisciplinario de Ciencias Biomédicas, Instituto de Investigaciones Medico-Biológicas, Universidad Veracruzana campus Veracruz, Veracruz, Mexico
| | - Carl-Wilhelm Vogel
- Department of Pathology, John A. Burns School of Medicine, University of Hawaii, Honolulu, USA
| | - Dina Yarullina
- Department of Microbiology, Kazan Federal University, Kazan, Russian Federation
| | - Derek M Yellon
- The Hatter Cardiovascular Institute, University College London, London, UK
- The National Institute of Health Research University College London Hospitals Biomedical Research Centre, London, UK
| | - Klaus T Preissner
- Institute of Biochemistry, Medical School, Justus-Liebig University, Giessen, Germany
| | - Derek J Hausenloy
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore, Singapore, Singapore.
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore.
- The Hatter Cardiovascular Institute, University College London, London, UK.
- The National Institute of Health Research University College London Hospitals Biomedical Research Centre, London, UK.
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Affiliation(s)
- Anna Zampetaki
- From the Cardiovascular Division, King's British Heart Foundation Centre, King's College London, London, United Kingdom
| | - Manuel Mayr
- From the Cardiovascular Division, King's British Heart Foundation Centre, King's College London, London, United Kingdom.
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Elgheznawy A, Shi L, Hu J, Wittig I, Laban H, Pircher J, Mann A, Provost P, Randriamboavonjy V, Fleming I. Dicer cleavage by calpain determines platelet microRNA levels and function in diabetes. Circ Res 2015; 117:157-65. [PMID: 25944670 DOI: 10.1161/circresaha.117.305784] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 05/05/2015] [Indexed: 12/13/2022]
Abstract
RATIONALE MicroRNAs (miRNAs) are short noncoding RNA species generated by the processing of longer precursors by the ribonucleases Drosha and Dicer. Platelets contain large amounts of miRNA that are altered by disease, in particular diabetes mellitus. OBJECTIVE This study determined why platelet miRNA levels are attenuated in diabetic individuals and how decreased levels of the platelet-enriched miRNA, miR-223, affect platelet function. METHODS AND RESULTS Dicer levels were altered in platelets from diabetic mice and patients, a change that could be attributed to the cleavage of the enzyme by calpain, resulting in loss of function. Diabetes mellitus in human subjects as well as in mice resulted in decreased levels of platelet miR-142, miR-143, miR-155, and miR-223. Focusing on only 1 of these miRNAs, miR-223 deletion in mice resulted in modestly enhanced platelet aggregation, the formation of large thrombi and delayed clot retraction compared with wild-type littermates. A similar dysregulation was detected in platelets from diabetic patients. Proteomic analysis of platelets from miR-223 knockout mice revealed increased levels of several proteins, including kindlin-3 and coagulation factor XIII-A. Whereas, kindlin-3 was indirectly regulated by miR-223, factor XIII was a direct target and both proteins were also altered in diabetic platelets. Treating diabetic mice with a calpain inhibitor prevented loss of platelet dicer as well as the diabetes mellitus-induced decrease in platelet miRNA levels and the upregulation of miR-223 target proteins. CONCLUSIONS Thus, calpain inhibition may be one means of normalizing platelet miRNA processing as well as platelet function in diabetes mellitus.
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Affiliation(s)
- Amro Elgheznawy
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Lei Shi
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Jiong Hu
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Ilka Wittig
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Hebatullah Laban
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Joachim Pircher
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Alexander Mann
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Patrick Provost
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Voahanginirina Randriamboavonjy
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.)
| | - Ingrid Fleming
- From the Institute for Vascular Signaling, Centre for Molecular Medicine, and DZHK (German Centre for Cardiovascular Research) partner site Rhine-Main, Frankfurt, Germany (A.E., L.S., J.H., H.L., V.R., I.F.); Functional Proteomics, SFB 815 Core Unit, Goethe-University, Frankfurt, Germany (I.W.); Walter-Brendel-Centre of Experimental Medicine and DZHK partner site Munich Heart Alliance, Ludwig-Maximilians-Universität, Munich, Germany (J.P.); Endokrinologikum Frankfurt, Frankfurt, Germany (A.M.); and Centre Hospitalier Universitaire de Québec Research Center, and Faculty of Medicine, Université Laval, Quebec, Canada (P.P.).
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34
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Laske C, Stellos K, Kempter I, Stransky E, Maetzler W, Fleming I, Randriamboavonjy V. Increased cerebrospinal fluid calpain activity and microparticle levels in Alzheimer's disease. Alzheimers Dement 2014; 11:465-74. [DOI: 10.1016/j.jalz.2014.06.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 03/21/2014] [Accepted: 06/11/2014] [Indexed: 12/28/2022]
Affiliation(s)
- Christoph Laske
- Section for Dementia Research, Hertie-Institute of Clinical Brain Research and Department of Psychiatry and Psychotherapy University of Tübingen Tübingen Germany
- DZNE German Center for Neurodegenerative Diseases Tübingen Germany
| | - Konstantinos Stellos
- Department of Cardiology, Centre of Internal Medicine III Goethe University Frankfurt am Main Germany
- Vascular Inflammation Group, Institute of Cardiovascular Regeneration, Centre of Molecular Medicine Goethe University Frankfurt am Main Germany
| | - Ingrid Kempter
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
| | - Elke Stransky
- Section for Dementia Research, Hertie-Institute of Clinical Brain Research and Department of Psychiatry and Psychotherapy University of Tübingen Tübingen Germany
| | - Walter Maetzler
- DZNE German Center for Neurodegenerative Diseases Tübingen Germany
- Department of Neurodegeneration, Center of NeurologyHertie Institute for Clinical Brain Research University of Tübingen Tübingen Germany
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine Goethe University Frankfurt am Main Germany
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Alonso-Orgaz S, Moreno-Luna R, López JA, Gil-Dones F, Padial LR, Moreu J, de la Cuesta F, Barderas MG. Proteomic characterization of human coronary thrombus in patients with ST-segment elevation acute myocardial infarction. J Proteomics 2014; 109:368-81. [DOI: 10.1016/j.jprot.2014.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 07/15/2014] [Accepted: 07/16/2014] [Indexed: 01/04/2023]
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Burkhart JM, Gambaryan S, Watson SP, Jurk K, Walter U, Sickmann A, Heemskerk JWM, Zahedi RP. What can proteomics tell us about platelets? Circ Res 2014; 114:1204-19. [PMID: 24677239 DOI: 10.1161/circresaha.114.301598] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
More than 130 years ago, it was recognized that platelets are key mediators of hemostasis. Nowadays, it is established that platelets participate in additional physiological processes and contribute to the genesis and progression of cardiovascular diseases. Recent data indicate that the platelet proteome, defined as the complete set of expressed proteins, comprises >5000 proteins and is highly similar between different healthy individuals. Owing to their anucleate nature, platelets have limited protein synthesis. By implication, in patients experiencing platelet disorders, platelet (dys)function is almost completely attributable to alterations in protein expression and dynamic differences in post-translational modifications. Modern platelet proteomics approaches can reveal (1) quantitative changes in the abundance of thousands of proteins, (2) post-translational modifications, (3) protein-protein interactions, and (4) protein localization, while requiring only small blood donations in the range of a few milliliters. Consequently, platelet proteomics will represent an invaluable tool for characterizing the fundamental processes that affect platelet homeostasis and thus determine the roles of platelets in health and disease. In this article we provide a critical overview on the achievements, the current possibilities, and the future perspectives of platelet proteomics to study patients experiencing cardiovascular, inflammatory, and bleeding disorders.
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Affiliation(s)
- Julia M Burkhart
- From the Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., Dortmund, Germany (J.M.B., A.S., R.P.Z); Institut für Klinische Biochemie und Pathobiochemie, Universitätsklinikum Würzburg, Würzburg, Germany (S.G.); Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia (S.G.); Centre for Cardiovascular Sciences, Institute for Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom (S.P.W.); Center for Thrombosis and Hemostasis, Universitätsklinikum der Johannes Gutenberg-Universität Mainz, Mainz, Germany (K.J., U.W.); Medizinisches Proteom Center, Ruhr Universität Bochum, Bochum, Germany (A.S.); Department of Chemistry, College of Physical Sciences, University of Aberdeen, Aberdeen, Scotland, United Kingdom (A.S.); and Department of Biochemistry, CARIM, Maastricht University, Maastricht, The Netherlands (J.W.M.H.)
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Randriamboavonjy V, Fleming I. Energy and motion: AMP-activated protein kinase α1 and its role in platelet activation. J Thromb Haemost 2014; 12:970-2. [PMID: 24738639 DOI: 10.1111/jth.12584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/30/2022]
Affiliation(s)
- V Randriamboavonjy
- Center for Molecular Medicine, Institute for Vascular Signaling, Goethe University, Frankfurt am Main, Germany
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Cano-Peñalver JL, Griera M, Serrano I, Rodríguez-Puyol D, Dedhar S, de Frutos S, Rodríguez-Puyol M. Integrin-linked kinase regulates tubular aquaporin-2 content and intracellular location: a link between the extracellular matrix and water reabsorption. FASEB J 2014; 28:3645-59. [PMID: 24784577 DOI: 10.1096/fj.13-249250] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
One of the clinical alterations observed in chronic renal disease (CRD) is the impaired urine concentration, known as diabetes insipidus (DI). Tubulointerstitial fibrosis of the kidney is also a pathological finding observed in CRD and involves composition of extracellular matrix (ECM). However, an association between these two events has not been elucidated. In this study, we showed that the extracellular-to-intracellular scaffold protein integrin-linked kinase (ILK) regulates expression of tubular water channel aquaporin-2 (AQP2) and its apical membrane presence in the renal tubule. Basally, polyuria and decreased urine osmolality were present in ILK conditional-knockdown (cKD-ILK) adult mice compared with nondepleted ILK littermates. No changes were observed in arginine-vasopressin (AVP) blood levels, renal receptor (V2R), or AQP3 expression. However, tubular AQP2 was decreased in expression and apical membrane presence in cKD-ILK mice, where the canonical V2R/cAMP axis activation is still functional, but independent of the absence of ILK. Thus, cKD-ILK constitutes a nephrogenic diabetes insipidus (NDI) model. AQP2 and ILK colocalize in cultured inner medullary collecting duct (mIMCD3) cells. Specific ILK siRNAs and collagen I (Col) decrease ILK and AQP2 levels and AQP2 presence on the membrane of tubular mIMCD3 cells, which impairs the capacity of the cells to transport water under hypotonic stress. The present work points to ILK as a therapeutic target in NDI.
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Affiliation(s)
- Jose Luis Cano-Peñalver
- Department of Systems Biology, Physiology Unit, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain; Instituto Reina Sofia de Investigación Renal and Red de Investigación Renal (REDinREN), Instituto de Salud Carlos III, Madrid, Spain
| | - Mercedes Griera
- Department of Systems Biology, Physiology Unit, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain; Instituto Reina Sofia de Investigación Renal and Red de Investigación Renal (REDinREN), Instituto de Salud Carlos III, Madrid, Spain
| | - Isabel Serrano
- Department of Integrative Oncology, British Columbia Cancer Research Center, Vancouver, British Columbia, Canada; and
| | - Diego Rodríguez-Puyol
- Instituto Reina Sofia de Investigación Renal and Red de Investigación Renal (REDinREN), Instituto de Salud Carlos III, Madrid, Spain; Biomedical Research Foundation and Department of Nephrology, Hospital Príncipe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Shoukat Dedhar
- Department of Integrative Oncology, British Columbia Cancer Research Center, Vancouver, British Columbia, Canada; and
| | - Sergio de Frutos
- Department of Systems Biology, Physiology Unit, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain; Instituto Reina Sofia de Investigación Renal and Red de Investigación Renal (REDinREN), Instituto de Salud Carlos III, Madrid, Spain;
| | - Manuel Rodríguez-Puyol
- Department of Systems Biology, Physiology Unit, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain; Instituto Reina Sofia de Investigación Renal and Red de Investigación Renal (REDinREN), Instituto de Salud Carlos III, Madrid, Spain
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Altered expression of platelet proteins and calpain activity mediate hypoxia-induced prothrombotic phenotype. Blood 2013; 123:1250-60. [PMID: 24297866 DOI: 10.1182/blood-2013-05-501924] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Oxygen-compromised environments, such as high altitude, air travel, and sports, and pathological conditions, such as solid tumors, have been suggested to be prothrombotic. Despite the indispensable role of platelets in thrombus formation, the studies linking hypoxia, platelet reactivity, and thrombus formation are limited. In the present study, platelet proteome/reactivity was analyzed to elucidate the acute hypoxia-induced prothrombotic phenotype. Rats exposed to acute simulated hypoxia (282 torr/8% oxygen) demonstrated a decreased bleeding propensity and increased platelet reactivity. Proteomic analysis of hypoxic platelets revealed 27 differentially expressed proteins, including those involved in coagulation. Among these proteins, calpain small subunit 1, a 28-kDa regulatory component for calpain function, was significantly upregulated under hypoxic conditions. Moreover, intraplatelet Ca(2+) level and platelet calpain activity were also found to be in accordance with calpain small subunit 1 expression. The inhibition of calpain activity demonstrated reversal of hypoxia-induced platelet hyperreactivity. The prothrombotic role for calpain was further confirmed by an in vivo model of hypoxia-induced thrombosis. Interestingly, patients who developed thrombosis while at extreme altitude had elevated plasma calpain activities and increased soluble P-selectin level. In summary, this study suggests that augmented calpain activity is associated with increased incidence of thrombosis under hypoxic environments.
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Ca2+-sensing receptor cleavage by calpain partially accounts for altered vascular reactivity in mice fed a high-fat diet. J Cardiovasc Pharmacol 2013; 61:528-35. [PMID: 23429586 DOI: 10.1097/fjc.0b013e31828d0fa3] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The Ca-sensing receptor (CaSR) is expressed in endothelial and smooth muscle cells, but its role in regulating vascular reactivity is unclear, as are the effects of disease on CaSR function and expression. We studied vascular reactivity in aortic segments from healthy and diabetic mice, combined with in vitro proteolysis studies and Western blot analyses of CaSR expression in tissue samples. In endothelium-intact aortic rings, extracellular Ca elicited a nitric oxide-dependent relaxation that was attenuated by the CaSR antagonist, NPS2390. The calcimimetic, calindol, induced the endothelium-independent relaxation of aortic segments that was also sensitive to NPS2390. The antagonist failed to affect responses to acetylcholine or U46619 but attenuated contractions to phenylephrine and potassium. In mice fed a Western-type diet, phenylephrine-induced contractions and calindol-induced relaxations were markedly attenuated, and CaSR expression was decreased. The latter phenomenon could be attributed to the activation of the Ca-dependent protease, µ-calpain, and the subsequent proteolytic cleavage of the CaSR. CaSR activation in smooth muscle cells modulates vascular responsiveness to Ca-elevating agonists. These effects are blunted during metabolic stress because of the limited proteolysis of the CaSR by calpain. The loss of the CaSR function may predispose to the macrovascular late complications associated with diabetes.
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Kraemer BF, Weyrich AS, Lindemann S. Protein degradation systems in platelets. Thromb Haemost 2013; 110:920-4. [PMID: 24048267 DOI: 10.1160/th13-03-0183] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 07/28/2013] [Indexed: 01/05/2023]
Abstract
Protein synthesis and degradation are essential processes that allow cells to survive and adapt to their surrounding milieu. In nucleated cells, the degradation and/or cleavage of proteins is required to eliminate aberrant proteins. Cells also degrade proteins as a mechanism for cell signalling and complex cellular functions. Although the last decade has convincingly shown that platelets synthesise proteins, the roles of protein degradation in these anucleate cytoplasts are less clear. Here we review what is known about protein degradation in platelets placing particular emphasis on the proteasome and the cysteine protease calpain.
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Affiliation(s)
- B F Kraemer
- Andrew Weyrich, MD, Eccles Institute of Human Genetics, Department of Internal Medicine, University of Utah, Salt Lake City, Building 533 Room 4220, Salt Lake City, Utah 84112, USA, Tel: +1 801 5850702, Fax: +1 801 5850701, E-mail:
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Hadas K, Randriamboavonjy V, Elgheznawy A, Mann A, Fleming I. Methylglyoxal induces platelet hyperaggregation and reduces thrombus stability by activating PKC and inhibiting PI3K/Akt pathway. PLoS One 2013; 8:e74401. [PMID: 24058557 PMCID: PMC3772821 DOI: 10.1371/journal.pone.0074401] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 07/31/2013] [Indexed: 12/15/2022] Open
Abstract
Diabetes is characterized by a dysregulation of glucose homeostasis and platelets from patients with diabetes are known to be hyper-reactive and contribute to the accelerated development of vascular diseases. Since many of the deleterious effects of glucose have been attributed to its metabolite methylgyloxal (MG) rather than to hyperglycemia itself, the aim of the present study was to characterize the effects of MG on platelet function. Washed human platelets were pre-incubated for 15 min with MG and platelet aggregation, adhesion on matrix-coated slides and signaling (Western blot) were assessed ex vivo. In vivo, the effect of MG on thrombus formation was determined using the FeCl3-induced carotid artery injury model. MG potentiated thrombin-induced platelet aggregation and dense granule release, but inhibited platelet spreading on fibronectin and collagen. In vivo, MG accelerated thrombus formation but decreased thrombus stability. At the molecular level, MG increased intracellular Ca2+ and activated classical PKCs at the same time as inhibiting PI3K/Akt and the β3-integrin outside-in signaling. In conclusion, these findings indicate that the enhanced MG concentration measured in diabetic patients can directly contribute to the platelet dysfunction associated with diabetes characterized by hyperaggregability and reduced thrombus stability.
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Affiliation(s)
- Karin Hadas
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | | | - Amro Elgheznawy
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | | | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
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Platelet hyperreactivity explains the bleeding abnormality and macrothrombocytopenia in a murine model of sitosterolemia. Blood 2013; 122:2732-42. [PMID: 23926302 DOI: 10.1182/blood-2013-06-510461] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Sitosterolemia is a rare, autosomal recessive disease caused by mutations in the adenosine triphosphate-binding cassette transporter genes ABCG5 or ABCG8 that result in accumulation of xenosterols in the body. Clinical manifestations include tendon xanthomas, premature coronary artery disease, hemolytic anemia, macrothrombocytopenia, and bleeding. Although the effect of sterol accumulation on the predisposition for atherosclerosis is evident, how xenosterol accumulation leads to defects in platelet physiology is unknown. Sitosterolemia induced in Abcg5- and Abcg8-deficient mice fed a high plant sterol diet resulted in accumulation of free sterols in platelet plasma membranes, leading to hyperactivatable platelets characterized by constitutive binding of fibrinogen to its αIIbβ3 integrin receptor, internalization of the αIIbβ3 complex, generation of platelet-derived microparticles, and changes in the quantity and subcellular localization of filamin. The latter was associated with macrothrombocytopenia, shedding of GPIbα, impaired platelet adhesion to von Willebrand factor, and inability to form stable thrombi. Plasma levels of soluble GPIbα were strongly correlated with plasma sitosterol levels in samples from human sitosterolemic patients, implicating a similar mechanism of sterol-induced platelet passivation in the human disease. Intercalation of plant sterols into the plasma membrane therefore results in dysregulation of multiple platelet activation pathways, leading to macrothrombocytopenia and bleeding.
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Schiefer IT, Tapadar S, Litosh V, Siklos M, Scism R, Wijewickrama GT, Chandrasena EP, Sinha V, Tavassoli E, Brunsteiner M, Fa' M, Arancio O, Petukhov P, Thatcher GRJ. Design, synthesis, and optimization of novel epoxide incorporating peptidomimetics as selective calpain inhibitors. J Med Chem 2013; 56:6054-68. [PMID: 23834438 DOI: 10.1021/jm4006719] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hyperactivation of the calcium-dependent cysteine protease calpain 1 (Cal1) is implicated as a primary or secondary pathological event in a wide range of illnesses and in neurodegenerative states, including Alzheimer's disease (AD). E-64 is an epoxide-containing natural product identified as a potent nonselective, calpain inhibitor, with demonstrated efficacy in animal models of AD. By use of E-64 as a lead, three successive generations of calpain inhibitors were developed using computationally assisted design to increase selectivity for Cal1. First generation analogues were potent inhibitors, effecting covalent modification of recombinant Cal1 catalytic domain (Cal1cat), demonstrated using LC-MS/MS. Refinement yielded second generation inhibitors with improved selectivity. Further library expansion and ligand refinement gave three Cal1 inhibitors, one of which was designed as an activity-based protein profiling probe. These were determined to be irreversible and selective inhibitors by kinetics studies comparing full length Cal1 with the general cysteine protease papain.
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Affiliation(s)
- Isaac T Schiefer
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois College of Pharmacy, University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL 60612-7231, USA
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E. Kehrel B, F. Brodde M. State of the art in platelet function testing. Transfus Med Hemother 2013; 40:73-86. [PMID: 23653569 PMCID: PMC3638976 DOI: 10.1159/000350469] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 03/05/2013] [Indexed: 12/20/2022] Open
Abstract
Platelets perform many functions in hemostasis but also in other areas of physiology and pathology. Therefore, it is obvious that many different function tests have been developed, each one conceived and standardized for a special purpose. This review will summarize the different fields in which platelet function testing is currently in use; diagnostics of patients with bleeding disorders, monitoring patients' response to anti-platelet therapy, monitoring in transfusion medicine (blood donors, platelet concentrates, and after transfusion), and monitoring in perioperative medicine to predict bleeding tendency. The second part of the review outlines different methods for platelet function testing, spanning bleeding time, and platelet counting as well as determining platelet adhesion, platelet secretion, platelet aggregation, platelet morphology, platelet signal transduction, platelet procoagulant activity, platelet apoptosis, platelet proteomics, and molecular biology.
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Affiliation(s)
- Beate E. Kehrel
- Department of Anesthesiology, Intensive Care and Pain Medicine, Experimental and Clinical Hemostasis, University of Münster, Germany
| | - Martin F. Brodde
- Department of Anesthesiology, Intensive Care and Pain Medicine, Experimental and Clinical Hemostasis, University of Münster, Germany
- OxProtect GmbH, Münster, Germany
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