JCLA:CD28和CTLA4单倍型与原发性干燥综合征易感性的关系

2019-05-16 不详 网络

利用间接免疫荧光法(IIFA)检测抗核抗体(ANA)最早于1958年提出,但是至今作为ANA筛查的参考方法。目前,基于人类上皮(HEp‐2)细胞免疫荧光(IIF)的ANA标准高效解释的自动化处理和识别系统;欧洲模式套件(EUROPattern Suite, Euroimmun)在中国有售。

原发性干燥综合征(pSS)是一种自身免疫性疾病,其特点是T细胞和B细胞浸润腺组织而破坏外分泌腺。 CD28CTLA4T细胞活化和抑制中发挥重要作用。本研究的目的是将CD28CTLA4单倍型与墨西哥西部患者对pSS的易感性结合起来进行分析。

本研究采用聚合酶链反应和限制性片段长度多态性方法,对111pSS患者和138例对照组(CS)进行CD28CTLA4基因型鉴定。用SHEsis程序进行单倍型分析。采用ELISA试剂盒检测血清可溶性CD28 (sCD28)CTLA4 (sCTLA4)水平。

研究结果显示,CD28 GC单倍型与pSS风险低相关(2.5‐倍,P < 0.001)。研究将CTLA4 CAGCGA确定为遗传危险因素(P < 0.001;OR = 3.82[CI95%:2.0227.296]P < 0.001;OR = 11.38[CI95%:3.28237.69])sCD28sCTLA4在患者和CS之间无差异。然而,CD28 IVS3 + 17TC基因型pSS患者的sCD28较高(CSTT携带者相比,P = 0.039)。对于sCTLA4,携带CTLA4319C>T+49 A>G+6230 G>A的患者或其单倍型没有显示任何差异。

我们的研究结果表明,CD28 GCCTLA4 CAGCGA单倍型与墨西哥西部患者对pSS的易感性有关。CD28CTLA4的基因调控以及腺组织的局部免疫反应可能调控pSS基因表达的影响。因此,在综合研究中有必要进一步证实这一假设。

原始出处:

Erika Fabiola LópezVillalobos,  Francisco Josué CarrilloBallesteros ,Association of CD28 and CTLA4 haplotypes with susceptibility to primary Sjögrens syndrome in Mexican population

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    原发性干燥综合症,主要就是遗传,它的发病与感染链球菌有关。

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