期刊
BLOOD
卷 137, 期 11, 页码 1538-1549出版社
AMER SOC HEMATOLOGY
DOI: 10.1182/blood.2020009166
关键词
-
类别
资金
- National Institutes of Health (NIH), National Heart, Lung, and Blood Institute (NHLBI) [HL134959-01A1]
- National Institute of General Medical Sciences [GM12130]
- American Heart Association [19PRE34380751]
- Royal Society Wolfson Foundation [RSWF\R3\183001]
- [HL098435]
- [HL133497]
- [HL141155]
- [HL142604]
This study elucidated the functional significance of targeting the neutrophil-dependent AnxA1/FPR2/ALX pathway in SCD, showing that regulating the FPR2/ALX pathway improved cerebral thrombotic responses in Sickle transgenic mice and provided evidence of neutrophils' key role in thromboinflammation. Targeting the AnxA1/FPR2/ALX pathway may offer new therapeutic possibilities against thromboinflammatory conditions like SCD.
Neutrophils play a crucial role in the intertwined processes of thrombosis and inflammation. An altered neutrophil phenotype may contribute to inadequate resolution, which is known to be a major pathophysiological contributor of thromboinflammatory conditions such as sickle cell disease (SCD). The endogenous protein annexin A1 (AnxA1) facilitates inflammation resolution via formyl peptide receptors (FPRs). We sought to comprehensively elucidate the functional significance of targeting the neutrophil-dependent AnxA1/FPR2/ALX pathway in SCD. Administration of AnxA1mimetic peptide AnxA1(Ac2-26) ameliorated cerebral thrombotic responses in Sickle transgenic mice via regulation of the FPR2/ALX (a fundamental receptor involved in resolution) pathway. We found direct evidence that neutrophils with SCD phenotype play a key role in contributing to thromboinflammation. In addition, AnxA1(Ac2-26) regulated activated SCD neutrophils through protein kinase B (Akt) and extracellular signal-regulated kinases (ERK1/2) to enable resolution. We present compelling conceptual evidence that targeting the AnxA1/FPR2/ALX pathway may provide new therapeutic possibilities against thromboinflammatory conditions such as SCD.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据