Cited by 187Platelet Disorders and TreatmentsBlood Coagulation and Thrombosis MechanismsSelenium in Biological Systems

Glutathione Peroxidase-3 Deficiency Promotes Platelet-Dependent Thrombosis In Vivo

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Jin, Richard C., Mahoney, Christopher E., (Coleman) Anderson, Laura, Ottaviano, Filomena, Croce, Kevin, Leopold, Jane A., Zhang, Ying-Yi, Tang, Shiow-Shih +2 more·2011·Circulation

Abstract

Background—: Glutathione peroxidase-3 (GPx-3) is a selenocysteine-containing plasma protein that scavenges reactive oxygen species in the extracellular compartment. A deficiency of this enzyme has been associated with platelet-dependent thrombosis, and a promoter haplotype with reduced function has been associated with stroke risk. Methods and Results—: We recently developed a genetic mouse model to assess platelet function and thrombosis in the setting of GPx-3 deficiency. The GPx-3(−/−)mice showed an attenuated bleeding time and an enhanced aggregation response to the agonist ADP compared with wild-type mice. GPx-3(−/−)mice displayed increased plasma levels of soluble P-selectin and decreased plasma cyclic cGMP compared with wild-type mice. ADP infusion-induced platelet aggregation in the pulmonary vasculature produced a more robust platelet activation response in the GPx-3(−/−)than wild-type mice; histological sections from the pulmonary vasculature of GPx-3(−/−)compared with wild-type mice showed increased platelet-rich thrombi and a higher percentage of occluded vessels. Cremaster muscle preparations revealed endothelial dysfunction in the GPx-3(−/−)compared with wild-type mice. With a no-flow ischemia-reperfusion stroke model, GPx-3(−/−)mice had significantly larger cerebral infarctions compared with wild-type mice and platelet-dependent strokes. To assess the neuroprotective role of antioxidants in this model, we found that manganese(III) meso-tetrakis(4-benzoic acid)porphyrin treatment reduced stroke size in GPx-3(−/−)mice compared with vehicle-treated controls. Conclusions—: These findings demonstrate that GPx-3 deficiency results in a prothrombotic state and vascular dysfunction that promotes platelet-dependent arterial thrombosis. These data illustrate the importance of this plasma antioxidant enzyme in regulating platelet activity, endothelial function, platelet-dependent thrombosis, and vascular thrombotic propensity.

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Crossref · 10.1161/circulationaha.110.000034

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  • Deficiency of GPx-3 in humans or knockout mice potentiates platelet activation and thrombosis.

    “Deficiency of GPx-3 in humans or knockout mice potentiates platelet activation and thrombosis (139, 193, 212).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [193]

  • In GPx-3 knockout mice, deficiency of this extracellular antioxidant causes endothelial dysfunction and increased sensitivity to neuronal injury in a brain model of ischemia reperfusion injury by mechanisms related to its key functions as an antioxidant enzyme and regulator of platelet-dependent thrombosis.

    “Furthermore, in GPx-3 knockout mice, deficiency of this extracellular antioxidant causes endothelial dysfunction and increased sensitivity to neuronal injury in a brain model of ischemia reperfusion injury by mechanisms related to its key functions as an antioxidant enzyme and regulator of platelet-dependent thrombosis (193).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [193]

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Authors
Jin, R. C., Mahoney, C. E., (Coleman) Anderson, L., Ottaviano, F., Croce, K., Leopold, J. A., Zhang, Y.-Y., Tang, S.-S., Handy, D. E., & Loscalzo, J.
Affiliations
  • Brigham and Women's Hospital (US)
  • From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Venue
Circulation
Published
2011-05-10
Volume
123
Issue
18
Pages
1963-1973
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2058584041
Cited by
186
References
33
Citations by year
2026: 5 · 2025: 13 · 2024: 16 · 2023: 13 · 2022: 22 · 2021: 11 · 2020: 7 · 2019: 11 · 2018: 9 · 2017: 8 · 2016: 19 · 2015: 13 · 2014: 11 · 2013: 14 · 2012: 5
FWCI
8.10
Type
journal article
Language
en
Open access
Locations
  • Circulation (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (n01hv28178-12-0-0)
  • National Heart, Lung, and Blood Institute (HL 089734, HL081587, HL 070819, K08HL086672, U54HL070819, HL086672, P01HL081587, N01-HV-028178, R21HL089734, R01HL105301, P01HL048743, HL-061795, R37HL061795)
Topics
  • Health Sciences › Medicine › Hematology › Platelet Disorders and Treatments
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
  • Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
Keywords
glutathione peroxidase 3, platelet aggregation, ADP-induced aggregation, soluble P-selectin, pulmonary vasculature, endothelial dysfunction, cerebral infarction, manganese porphyrin, antioxidants, reactive oxygen species, selenocysteine, genetic mouse models
MeSH terms
Adenosine Diphosphate, Animals, Antioxidants, Bleeding Time, Blood Platelets, Disease Models, Animal, Endothelium, Vascular, Genotype, Glutathione, Glutathione Peroxidase, Cyclic GMP, Platelet Aggregation, Risk Factors, Thrombosis, Reactive Oxygen Species, Mice, Knockout, P-Selectin, Infarction, Middle Cerebral Artery, Mice

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