Inflammation is a key part of central nervous system pathophysiology. However, inflammatory factors are now thought to have both beneficial and deleterious effects. Here, we examine the hypothesis that lipocalin-2 (LCN2), an inflammatory molecule that can be up-regulated in the distressed central nervous system, may enhance angiogenesis in brain endothelial cells. Adding LCN2 (0.5-2.0 lg/mL) to RBE (Rat brain endothelial cells). 4 rat brain endothelial cells significantly increased matrigel tube formation and scratch migration, and also elevated levels of iron and reactive oxygen species. Cotreatment with a radical scavenger (U83836E), a Nox inhibitor (apocynin) and an iron chelating agent (deferiprone) significantly dampened the ability of LCN2 to enhance tube formation and scratch migration in brain endothelial cells. These findings provide in vitro proof of the concept that LCN2 can promote angiogenesis via iron-and reactive oxygen species-related pathways, and support the idea that LCN2 may contribute to the neurovascular recovery aspects of inflammation.
基金:
NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USA; AHAAmerican Heart Association; Rappaport Foundation
第一作者机构:[1]Harvard Univ, Massachusetts Gen Hosp, Dept Radiol, Sch Med, Charlestown, MA 02129 USA;[2]Harvard Univ, Massachusetts Gen Hosp, Dept Neurol, Sch Med, Charlestown, MA 02129 USA;[3]Harvard Univ, Massachusetts Gen Hosp, Dept Pediat, Sch Med, Charlestown, MA 02129 USA;[4]Jilin Univ, Hosp 1, Dept Neurol, Changchun 130023, Peoples R China;
通讯作者:
通讯机构:[1]Harvard Univ, Massachusetts Gen Hosp, Dept Radiol, Sch Med, Charlestown, MA 02129 USA;[2]Harvard Univ, Massachusetts Gen Hosp, Dept Neurol, Sch Med, Charlestown, MA 02129 USA;[3]Harvard Univ, Massachusetts Gen Hosp, Dept Pediat, Sch Med, Charlestown, MA 02129 USA;[6]Harvard Univ, Massachusetts Gen Hosp, Dept Radiol, Sch Med, MGH E 149-2401, Charlestown, MA 02129 USA
推荐引用方式(GB/T 7714):
Wu Limin,Du Yang,Lok Josephine,et al.Lipocalin-2 enhances angiogenesis in rat brain endothelial cells via reactive oxygen species and iron-dependent mechanisms[J].JOURNAL OF NEUROCHEMISTRY.2015,132(6):622-628.doi:10.1111/jnc.13023.
APA:
Wu, Limin,Du, Yang,Lok, Josephine,Lo, Eng H.&Xing, Changbong.(2015).Lipocalin-2 enhances angiogenesis in rat brain endothelial cells via reactive oxygen species and iron-dependent mechanisms.JOURNAL OF NEUROCHEMISTRY,132,(6)
MLA:
Wu, Limin,et al."Lipocalin-2 enhances angiogenesis in rat brain endothelial cells via reactive oxygen species and iron-dependent mechanisms".JOURNAL OF NEUROCHEMISTRY 132..6(2015):622-628