Enzymatic lipid oxidation by eosinophils propagates coagulation, hemostasis, and thrombotic disease.
J Exp Med
; 214(7): 2121-2138, 2017 Jul 03.
Article
en En
| MEDLINE
| ID: mdl-28566277
Blood coagulation is essential for physiological hemostasis but simultaneously contributes to thrombotic disease. However, molecular and cellular events controlling initiation and propagation of coagulation are still incompletely understood. In this study, we demonstrate an unexpected role of eosinophils during plasmatic coagulation, hemostasis, and thrombosis. Using a large-scale epidemiological approach, we identified eosinophil cationic protein as an independent and predictive risk factor for thrombotic events in humans. Concurrent experiments showed that eosinophils contributed to intravascular thrombosis by exhibiting a strong endogenous thrombin-generation capacity that relied on the enzymatic generation and active provision of a procoagulant phospholipid surface enriched in 12/15-lipoxygenase-derived hydroxyeicosatetraenoic acid-phosphatidylethanolamines. Our findings reveal a previously unrecognized role of eosinophils and enzymatic lipid oxidation as regulatory elements that facilitate both hemostasis and thrombosis in response to vascular injury, thus identifying promising new targets for the treatment of thrombotic disease.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trombosis
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Coagulación Sanguínea
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Araquidonato 12-Lipooxigenasa
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Araquidonato 15-Lipooxigenasa
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Eosinófilos
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Hemostasis
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Lípidos
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
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Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
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Aged
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Animals
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Humans
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Middle aged
Idioma:
En
Revista:
J Exp Med
Año:
2017
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Estados Unidos