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首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Overexpression of the apoptosis inhibitor FLIP in T cells correlates with disease activity in multiple sclerosis.
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Overexpression of the apoptosis inhibitor FLIP in T cells correlates with disease activity in multiple sclerosis.

机译:T细胞中凋亡抑制剂FLIP的过度表达与多发性硬化症的疾病活动相关。

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摘要

The cellular caspase-inhibitory protein FLIP has been recently identified as a potent regulator of T lymphocyte susceptibility to Fas-mediated programmed cell death (apoptosis). Since impairment of apoptosis may be involved in multiple sclerosis (MS), we investigated the dynamics of cellular FLIP in unstimulated and activated T lymphocytes from MS patients, inflammatory and non-inflammatory neurological disorders, and healthy subjects. Cellular expression of the long and short forms of FLIP protein was similar in unstimulated T cells from MS patients and controls, but was significantly higher in activated T cells from patients with clinically active MS. This high FLIP expression in active MS correlated with cellular resistance to Fas-mediated apoptosis. In contrast, cellular expression of the anti-apoptotic protein Bcl-2 did not differ between active and stable disease, and was relatively similar between the MS group and controls. These findings suggest that cellular overexpression of the anti-apoptotic protein FLIP is a feature of clinically active multiple sclerosis.
机译:最近已将细胞半胱天冬酶抑制蛋白FLIP鉴定为T淋巴细胞对Fas介导的程序性细胞死亡(细胞凋亡)易感性的有效调节剂。由于凋亡的损伤可能与多发性硬化症(MS)有关,因此我们研究了来自MS患者,炎性和非炎性神经系统疾病以及健康受试者的未刺激和活化T淋巴细胞中细胞FLIP的动力学。长短形式的FLIP蛋白的细胞表达在MS患者和对照组的未刺激T细胞中相似,但在具有临床活跃MS的患者的活化T细胞中则明显更高。活跃的MS中这种高FLIP表达与细胞对Fas介导的细胞凋亡的抗性相关。相反,抗凋亡蛋白Bcl-2的细胞表达在活动性疾病和稳定性疾病之间没有差异,在MS组和对照组之间相对相似。这些发现表明抗凋亡蛋白FLIP的细胞过表达是临床上活跃的多发性硬化症的特征。

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