肽基精氨酸脱亚胺酶4(PADI4)对RA的影响

被引:1
作者
刘肖帅
葛鲁娜
韩金祥
常晓天
朱有名
王世立
机构
[1] 山东省医学科学院国家卫生部生物技术药物重点实验室山东省罕少见病重点实验室山东省医药生物技术研究中心
关键词
类风湿关节炎; 肽基精氨酸脱亚胺酶4; SNP; 瓜氨酸化; 抗PADI4抗体;
D O I
10.13523/j.cb.20110916
中图分类号
R593.22 [类风湿性关节炎];
学科分类号
摘要
类风湿关节炎(RA)是一种病因和发病机制尚不清楚的自身免疫疾病,一般认为是由多种遗传因素和环境因素共同作用的结果。遗传因素中以组织相容性白细胞抗原HLA最为重要,另外作为非HLA的肽基精氨酸脱亚胺酶4(PADI4)也参与了RA的发病。PADI4是一种翻译后修饰酶,可在钙离子存在的情况下将精氨酸残基转化为瓜氨酸残基,瓜氨酸化后的蛋白质往往改变其分子构象,从而导致其生化活性亦发生改变。在不用种族的人群中,PADI4基因多态性与RA的易感性不尽相同。PADI4在RA患者血清中含量明显升高,在机体内产生自身抗PADI4抗体,并且PADI4瓜氨酸化多种蛋白质引起机体自身的免疫反应参与RA的发生与发展。近些年来的其他研究表明PAID4也参与了肿瘤、溃疡性结肠炎、多发性硬化症的发病。尽管针对PADI4的研究已经取得了很多重大进展,但是仍然存在很多悬而未决的问题等待科研工作者进一步的研究和证实。
引用
收藏
页码:103 / 108
页数:6
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