Resolution of sickle cell disease-associated inflammation and tissue damage with 17 R -resolvin D1
Resolvins (Rvs), endogenous lipid mediators, play a key role in the resolution of inflammation. Sickle cell disease (SCD), a genetic disorder of hemoglobin, is characterized by inflammatory and vaso-occlusive pathologies. We document altered proresolving events following hypoxia/reperfusion in human...
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Published in | Blood Vol. 133; no. 3; p. 252 |
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Main Authors | , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
17.01.2019
|
Subjects | |
Online Access | Get full text |
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Summary: | Resolvins (Rvs), endogenous lipid mediators, play a key role in the resolution of inflammation. Sickle cell disease (SCD), a genetic disorder of hemoglobin, is characterized by inflammatory and vaso-occlusive pathologies. We document altered proresolving events following hypoxia/reperfusion in humanized SCD mice. We demonstrate novel protective actions of 17
-resolvin D1 (17
RvD1; 7
, 8
, 17
-trihydroxy-4
, 9
, 11
, 13
, 15
, 19
-docosahexaenoic acid) in reducing ex vivo human SCD blood leukocyte recruitment by microvascular endothelial cells and in vivo neutrophil adhesion and transmigration. In SCD mice exposed to hypoxia/reoxygenation, oral administration of 17
RvD1 reduces systemic/local inflammation and vascular dysfunction in lung and kidney. The mechanism of action of 17
-RvD1 involves (1) enhancement of SCD erythrocytes and polymorphonuclear leukocyte efferocytosis, (2) blunting of NF-κB activation, and (3) a reduction in inflammatory cytokines, vascular activation markers, and E-selectin expression. Thus, 17
-RvD1 might represent a new therapeutic strategy for the inflammatory vasculopathy of SCD. |
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ISSN: | 1528-0020 |