RETRACTED: Role of fractalkine/CX3CR1 signaling pathway in the recovery of neurological function after early ischemic stroke in a rat model (Retracted article. See vol. 321, 2023)

被引：26

作者：

Liu, Yan-Zhi ^{[1
]}

Wang, Chun ^{[1
]}

Wang, Qian ^{[1
]}

Lin, Yong-Zhong ^{[1
]}

Ge, Yu-Song ^{[1
]}

Li, Dong-Mei ^{[2
]}

Mao, Geng-Sheng ^{[2
]}

机构：

[1] Dalian Med Univ, Hosp 2, Dept Neurol, 467 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China

[2] Gen Hosp Armed Police Forces, Dept Neurovasc Surg, Beijing 100039, Peoples R China

来源：

LIFE SCIENCES | 2017年 / 184卷

关键词：

Fractalkine; CX3CR1; Early ischemic stroke; Neurological function; Signaling pathway; MICROGLIAL ACTIVATION; CX3CR1; INFLAMMATION; RECEPTOR; CHEMOKINES; THERAPY; DISEASE; SYSTEM; DAMAGE; BDNF;

D O I：

10.1016/j.lfs.2017.06.012

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

1001 ;

摘要：

This study aims to explore the role of fractalkine/CX3C chemokine receptor 1 (CX3CR1) signaling pathway in the recovery of neurological functioning after an early ischemic stroke in rats. After establishment of permanent middle cerebral artery occlusion (pMCAO) models, 50 rats were divided into blank, sham, model, positive control and CX3CR1 inhibitor groups. Neurological impairment, walking and grip abilities, and cortical and hippocampal infarctions were evaluated by Zea Longa scoring criterion, beam-walking assay and grip strength test, and diffusion -weighted magnetic resonance imaging. qRT-PCR and Western blotting were performed to detect mRNA and protein expressions. ELISA was conducted to measure concentration of sFractalkine (sFkn), interleukin-1p (IL-1 beta) and TNF-alpha.. The recovery rate of neurological functioning impairment and reduced walking and grip abilities was faster in the positive control and CX3CR1 inhibitor groups than the model group. The model, positive control and CX3CR1 inhibitor groups showed increased mRNA and protein expression of chemokine C-X3-C motif ligand 1 (CX3CL1) and CX3CR1, concentration of sFkn, IL-1 beta and TNF-alpha, and size of cortical and cerebral infarctions while decreased expression of NGF and BDNF compared with the blank and sham groups. Compared with the model group, the mRNA and protein expression of CX3CL1 and CX3CR1, concentration of sFkn, IL-1 beta and TNF-alpha, and size of cortical and cerebral infarctions decreased while expression of NGF and BDNF increased in the positive control and CX3CR1 inhibitor groups. Thus, the study suggests that inhibition of fractalkine/CX3CR1 signaling pathway promotes the recovery of neurological functioning after the occurrence of an early ischemic stroke. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：87 / 94

页数：8

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