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Provenzale I, Solari FA, Schönichen C, Brouns SLN, Fernández DI, Kuijpers MJE, van der Meijden PEJ, Gibbins JM, Sickmann A, Jones C, Heemskerk JWM. Endothelium-mediated regulation of platelet activation: Involvement of multiple protein kinases. FASEB J 2024; 38:e23468. [PMID: 38334433 DOI: 10.1096/fj.202300360rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 01/11/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
The endothelial regulation of platelet activity is incompletely understood. Here we describe novel approaches to find molecular pathways implicated on the platelet-endothelium interaction. Using high-shear whole-blood microfluidics, employing coagulant or non-coagulant conditions at physiological temperature, we observed that the presence of human umbilical vein endothelial cells (HUVEC) strongly suppressed platelet adhesion and activation, via the collagen receptor glycoprotein VI (GPVI) and the PAR receptors for thrombin. Real-time monitoring of the cytosolic Ca2+ rises in the platelets indicated no major improvement of inhibition by prostacyclin or nitric oxide. Similarly under stasis, exposure of isolated platelets to HUVEC reduced the Ca2+ responses by collagen-related peptide (CRP-XL, GPVI agonist) and thrombin (PAR agonist). We then analyzed the label-free phosphoproteome of platelets (three donors), exposed to HUVEC, CRP-XL, and/or thrombin. High-resolution mass spectrometry gave 5463 phosphopeptides, corresponding to 1472 proteins, with good correlation between biological and technical replicates (R > .86). Stringent filtering steps revealed 26 regulatory pathways (Reactome) and 143 regulated kinase substrates (PhosphoSitePlus), giving a set of protein phosphorylation sites that was differentially (44) or similarly (110) regulated by HUVEC or agonist exposure. The differential regulation was confirmed by stable-isotope analysis of platelets from two additional donors. Substrate analysis indicated major roles of poorly studied protein kinase classes (MAPK, CDK, DYRK, STK, PKC members). Collectively, these results reveal a resetting of the protein phosphorylation profile in platelets exposed to endothelium or to conventional agonists and to endothelium-promoted activity of a multi-kinase network, beyond classical prostacyclin and nitric oxide actors, that may contribute to platelet inhibition.
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Affiliation(s)
- Isabella Provenzale
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
- Institute for Cardiovascular and Metabolic Research (ICMR), School of Biological Sciences, University of Reading, Reading, UK
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Dortmund, Germany
| | - Fiorella A Solari
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Dortmund, Germany
| | - Claudia Schönichen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
- Center for Thrombosis and Haemostasis, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Sanne L N Brouns
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - Delia I Fernández
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Marijke J E Kuijpers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
- Thrombosis Expertise Center, Heart and Vascular Center, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Paola E J van der Meijden
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
- Thrombosis Expertise Center, Heart and Vascular Center, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Jonathan M Gibbins
- Institute for Cardiovascular and Metabolic Research (ICMR), School of Biological Sciences, University of Reading, Reading, UK
| | - Albert Sickmann
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Dortmund, Germany
- Medizinische Fakultät, Medizinische Proteom-Center, Ruhr-Universität Bochum, Bochum, Germany
- Department of Chemistry, College of Physical Sciences, University of Aberdeen, Aberdeen, UK
| | - Chris Jones
- Institute for Cardiovascular and Metabolic Research (ICMR), School of Biological Sciences, University of Reading, Reading, UK
| | - Johan W M Heemskerk
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
- Synapse Research Institute Maastricht, Maastricht, The Netherlands
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Ablation of the Kell/Xk complex alters erythrocyte divalent cation homeostasis. Blood Cells Mol Dis 2012; 50:80-5. [PMID: 23122227 DOI: 10.1016/j.bcmd.2012.10.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 10/04/2012] [Indexed: 01/09/2023]
Abstract
XK is a putative transporter of unknown function that is ubiquitously expressed and linked through disulfide bonds to Kell protein, an endothelin-3 (ET-3)-converting enzyme. We generated three knockout (KO) mice that lacked either Xk, Kell or both proteins and characterized erythrocyte cation levels, transport and hematological parameters. Absence of Xk or Kell was accompanied by changes in erythrocyte K(+), Mg(2+), Na(+) and Ca(2+) transport that were associated with changes in mean cellular volume and corpuscular hemoglobin concentration mean. Baseline Ca(2+)-ATPase activity was undetected in erythrocytes from all three mouse types but was restored upon pre-incubation with ET-3. Consistent with these alterations in Ca(2+) handling, we observed increased Gardos channel activity in Kel and Xk KO mice. In addition Kel deletion was associated with increased Mg(2+) permeability while Xk deletion blocked Na/Mg exchanger activity. Our results provide evidence that cellular divalent cation regulation is functionally coupled to the Kell/XK system in erythrocytes and loss of this complex may contribute to acanthocytosis formation in McLeod syndrome.
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Elferink JG, De Koster BM. The involvement of protein kinase G in stimulation of neutrophil migration by endothelins. Eur J Pharmacol 1998; 350:285-91. [PMID: 9696419 DOI: 10.1016/s0014-2999(98)00265-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Activation of human neutrophil migration by endothelin-1 and endothelin-3 is inhibited by guanylate cyclase inhibitors, by antagonists of protein kinase G (G-kinase), and by KT-5823, an inhibitor of G-kinase. Although no direct effect of endothelins on cGMP level could be established, these results suggest that the effect of these endothelins on migration is mediated by cGMP, and that the effect of cGMP proceeds via a G-kinase. There was little or no effect of guanylate cyclase inhibitors and G-kinase antagonists on endothelin-2-activated migration, indicating that the role of cGMP and G-kinase in endothelin-2-induced activation was either absent or at least different from that of the other endothelins. As compared with other activators, the role of G-kinase in formyl-methionyl-leucyl-phenylalanyl(fMLP-)activated migration resembled that of endothelin-activated migration, while the role of G-kinase in interleukin-8- or leukotriene B4-activated migration was less pronounced.
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Affiliation(s)
- J G Elferink
- Department of Molecular Cell Biology, University of Leiden, The Netherlands
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Hamroun D, Mathieu MN, Chevillard C. Change of endothelin receptor subtype in the MEG-01 human megakaryoblastic cell line. Eur J Pharmacol 1998; 344:307-12. [PMID: 9600667 DOI: 10.1016/s0014-2999(97)01594-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The aim of this investigation was to determine whether the endothelin receptor subtype of a megakaryoblastic cell line (MEG-01) changes during culture passages as cells undergo maturation and differentiation. On early-passage cells, binding of [125I]endothelin-1 was completely inhibited by 1 microM BQ 123 (cyclo-[D-tryptophanyl-D-aspartyl-prolyl-D-valyl-leucyl]), but not by sarafotoxin 6C. Also the endothelin-1-enhancing effect on [Ca2+]i was prevented by BQ 123, whereas sarafotoxin 6C had no effect on [Ca2+]i. In late-passage cells, endothelin ET(B) analogs, unlike endothelin ET(A) analogs, competed with binding of [125I]endothelin-1. Endothelin ET(B) receptor agonists increased [Ca2+]i while the endothelin-1-induced response was inhibited by BQ 788 ([N-[(2R,6S)-2,6-dimethyl-piperidinocarbonyl]-4-methyl-D-leucyl]-[ N(omega)-(methoxycarbonyl)-D-tryptophanyl]-D-norleucine), but not by BQ 123, although both endothelin ET(A) and ET(B) receptor mRNAs were expressed, as shown by reverse transcriptase-polymerase chain reaction. These results demonstrate that in MEG-01 cells switch from expression of endothelin ET(A) to expression of ET(B) receptors during culture. The data also suggest that late-passage MEG-01 cells look like platelets, in terms of endothelin receptor subtype.
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Le Quan Sang KH, Lantoine F, Devynck MA. Influence of authentic nitric oxide on basal cytosolic [Ca2+] and Ca2+ release from internal stores in human platelets. Br J Pharmacol 1996; 119:1361-6. [PMID: 8968544 PMCID: PMC1915830 DOI: 10.1111/j.1476-5381.1996.tb16047.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
1. Nitric oxide (NO) donors inhibit platelet function and Ca2+ mobilization evoked by different agonists. This led us to investigate the direct effects of authentic NO on basal cytosolic Ca2+ concentration ([Ca2+]i) and on Ca2+ mobilization induced by thrombin or by two inhibitors of intracellular Ca(2+)-ATPases, thapsigargin and 2,5-di-(t-butyl)-1,4-benzohydroquinone (t-BuBHQ). 2. Cytosolic Ca2+ concentration was evaluated with Fura-2, in the absence of Ca2+ influx. Addition of 5 microM NO increased by 48% the basal cytosolic [Ca2+] of resting human platelets whereas a lower concentration (0.1 microM) did not induce significant modifications. This NO-induced Ca2+ increase was inversely correlated with the basal level of cytosolic [Ca2+]. 3. NO pretreatment for 30 to 120 s decreased by 42 to 57% the transient [Ca2+]i peak evoked by 0.10 u ml-1 thrombin and strongly attenuated the initial rate of [Ca2+]i rise induced by 1 microM thapsigargin or by 20 microM t-BuBHQ. The two components of the thapsigargin response, the Ca2+ release due to inhibition of Ca2+ pumps and the thromboxane A2-dependent self-amplification mechanism, were inhibited by NO. The observation that a subsequent stimulation was still capable of eliciting Ca2+ release suggests the presence of NO-insensitive Ca2+ stores. 4. These findings indicate that nitric oxide can modulate basal cytosolic [Ca2+] in unstimulated human platelets and decrease the Ca2+ mobilization from NO-sensitive internal stores evoked by stimulation of receptors or by Ca(2+)-ATPase inhibitors. This underlines the important role of nitric oxide in the modulation of platelet Ca2+ handling.
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Affiliation(s)
- K H Le Quan Sang
- CNRS URA 1482, Faculté de Médecine Necker, Université René Descartes, Paris, France
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