Neutralization of N-half Osteopontin Prevents Atherosclerotic Plaque Rupture in ApoE-/-Mice

Neutralization of N-half Osteopontin Prevents Atherosclerotic Plaque Rupture in ApoE-/-Mice
复制标题

N-半骨桥蛋白的中和可预防 ApoE-/-小鼠的动脉粥样硬化斑块破裂

DOI:
10.17303/jcvm.2018.4.103
复制
发表时间:
2019
期刊:
jcvm
影响因子:
--
通讯作者:
T. Okura
T. Okura
中科院分区:
--
文献类型:
--
作者:
T. Okura

文献摘要

参考文献

相似文献

目的:动脉粥样硬化是动脉的慢性炎症,而骨桥蛋白(OPN)在动脉粥样硬化炎症中起重要作用。凝血酶切割OPN,导致形成n端片段(N-half OPN),增强动脉粥样硬化期间的炎症。我们假设n -一半OPN增加斑块炎症并导致斑块破裂。方法:我们在C57BL/6 (WT)、ApoE-/-、Opn-/-和ApoE-/-/Opn-/-小鼠中模拟动脉粥样硬化斑块破裂。此外,我们通过腹腔注射抗n -半OPN抗体(M5Ab)来中和ApoE-/-小鼠n -半OPN的形成。结果:ApoE-/-/Opn-/小鼠斑块破裂发生率明显低于ApoE-/小鼠(分别为25%和67%)。同样,M5Ab治疗将ApoE-/小鼠斑块破裂的发生率从67%降低到29%。在ApoE-/小鼠中,巨噬细胞浸润斑块病变,而在ApoE-/-/Opn-/-小鼠和M5Ab处理的inApoE-/小鼠中,巨噬细胞浸润明显减弱。结论:除了全长OPN外,OPN的n端片段也是动脉粥样硬化斑块破裂的关键介质,能够诱导巨噬细胞浸润斑块病变。
Aims: Atherosclerosis is chronic inflammation of arteries, andosteopontin (OPN) is known to play a significant role in atherosclerotic inflammation. Thrombin cleaves OPN, resulting in the formation of a N-terminal fragment (N-half OPN) that enhances inflammation during atherosclerosis. We hypothesized that N-half OPN increased plaque inflammation and caused plaque rupture. Methods: We modeled atherosclerotic plaque rupture in C57BL/6 (WT), ApoE-/-, Opn-/-, and ApoE-/-/Opn-/-mice. In addition, we neutralized N-half OPN formation in ApoE-/-mice by intraperitoneal administration of anti-N-half OPN antibody (M5Ab). Results: The incidence of plaque rupture in ApoE-/-/Opn-/mice was significantly lower than that in ApoE-/mice (25% and 67%, respectively). Similarly, treatment with M5Ab reduced the incidence of plaque rupture in ApoE-/mice from 67% to 29%. Macrophages infiltrated the plaque lesions in ApoE-/mice, whereas, such infiltration was clearly attenuated in ApoE-/-/Opn-/-mice and inApoE-/mice treated with M5Ab. Conclusion: In addition to the full-length OPN, the N-terninal fragment of OPN is also a key mediator of atherosclerotic plaque rupture that is capable of inducing macrophage infiltration in plaque lesions.
在骨桥蛋白缺陷小鼠中,血管紧张素 II 加速的动脉粥样硬化和动脉瘤形成被减弱。
DOI: 10.1172/jci18141
发表时间: 2003
期刊: The Journal of clinical investigation
影响因子: --
作者:
Bruemmer,Dennis;Collins,AlanR;Noh,Grace;Wang,Wei;Territo,Mary;Arias-Magallona,Sarah;Fishbein,MichaelC;Blaschke,Florian;Kintscher,Ulrich;Graf,Kristof;Law,RonaldE;Hsueh,WillaA
通讯作者: Hsueh,WillaA
DOI: 10.1172/jci117718
发表时间: 1995-02-01
影响因子: 15.9
作者:
LIAW, L;SKINNER, MP;GIACHELLI, CM
通讯作者: GIACHELLI, CM
DOI: 10.1172/jci82719
发表时间: 2015-12-01
影响因子: 15.9
作者:
Chen, Pei-Yu;Qin, Lingfeng;Simons, Michael
通讯作者: Simons, Michael
DOI: 10.1172/jci119076
发表时间: 1996-12-01
影响因子: 15.9
作者:
Rajagopalan, S;Meng, XP;Galis, ZS
通讯作者: Galis, ZS
DOI: --
发表时间: 1994-10
期刊: The American journal of pathology
影响因子: --
作者:
E. O’Brien;M. Garvin;R. Dev;D. Stewart;T. Hinohara;J. Simpson;S. Schwartz
通讯作者: E. O’Brien;M. Garvin;R. Dev;D. Stewart;T. Hinohara;J. Simpson;S. Schwartz