Nature:类风湿关节炎新易感基因找到

2014-01-19 MedSci MedSci原创

一项由美国、日本、法国、中国等国家研究人员组成的国际团队研究发现,有40多个新的DNA区域会增加类风湿性关节炎的风险。相关论文日前在线发表于国际学术刊物《自然》杂志上。 类风湿关节炎是一种由免疫系统紊乱导致的,以关节炎症为主要特征的风湿病。该病发病率高,致残率高。研究认为,类风湿关节炎65%的发病风险是由遗传因素造成的。此前,科研人员已在整个基因组中找到了59个与类风湿关节炎发病风险相关的基因

一项由美国、日本、法国、中国等国家研究人员组成的国际团队研究发现,有40多个新的DNA区域会增加类风湿性关节炎的风险。相关论文日前在线发表于国际学术刊物《自然》杂志上。

类风湿关节炎是一种由免疫系统紊乱导致的,以关节炎症为主要特征的风湿病。该病发病率高,致残率高。研究认为,类风湿关节炎65%的发病风险是由遗传因素造成的。此前,科研人员已在整个基因组中找到了59个与类风湿关节炎发病风险相关的基因。

研究中,中方团队开展了大规模的遗传流行病学研究,涉及数千位中国汉族病人,参与找到了类风湿关节炎发病的42个新基因,使该疾病已知的易感基因数目达到了101个,并鉴定了一系列之前未报道的与汉族人类风湿关节炎发病风险相关的基因,同时揭示了与欧洲类风湿关节炎病人在遗传背景中的异同。

该项目中方团队带头人、第二军医大学附属长征医院风湿免疫科主任徐沪济教授说:“这项研究证明,欧洲人的类风湿关节炎和汉族人的类风湿关节炎在遗传学上是比较相似的。因此推知,在一个种族中比较有效的疗法,也会在另一个种族中奏效。”另外,科研人员在汉族人类风湿关节炎研究中发现,该疾病主要有 ACPA阳性和ACPA阴性两种分型,由于二者具有类似的病因,所以一种有效的治疗方法对这两种类型的患者均有效。 此次新发现两个SNP:rs12617656定位于DPP4,rs12379034定位于 CDK5RAP2.徐沪济科研团队主要参与完成的相关研究结果同期独立发表在国际风湿病学杂志《关节炎和风湿病》上。

原始出处:

Jiang L, Yin J, Ye L, Yang J, Hemani G, Liu AJ, Zou H, He D, Sun L, Zeng X, Li Z, Zheng Y, Lin Y, Liu Y, Fang Y, Xu J, Li Y, Dai SM, Guan J, Jiang L, Wei Q, Wang Y, Li Y, Huang C, Zuo X, Liu Y, Wu X, Zhang L, Zhou L, Zhang Q, Li T, Chen L, Xu Z, Yang X, Qian F, Xie W, Liu W, Guo Q, Huang S, Zhao J, Li M, Jin Y, Gao J, Lv Y, Wang Y, Lin L, Guo A, Danoy P, Willner D, Cremin C, Hadler J, Zhang F, Zhao Y, Li M, Yue T, Fan X, Guo J, Mu R, Li J, Wu C, Zeng M, Wang J, Li S, Jin L, Wang B, Wang J, Ma X, Sun L, Zhang X, Brown MA, Visscher PM, Su DF, Xu H.Novel risk loci for rheumatoid arthritis in han chinese and congruence with risk variants in europeans.Arthritis Rheum. 2014 Jan 8. doi: 10.1002/art.38353.

Okada Y, Wu D, Trynka G, Raj T, Terao C, Ikari K, Kochi Y, Ohmura K, Suzuki A, Yoshida S, Graham RR, Manoharan A, Ortmann W, Bhangale T, Denny JC, Carroll RJ, Eyler AE, Greenberg JD, Kremer JM, Pappas DA, Jiang L, Yin J, Ye L, Su DF, Yang J, Xie G, Keystone E, Westra HJ, Esko T, Metspalu A, Zhou X, Gupta N, Mirel D, Stahl EA, Diogo D, Cui J, Liao K, Guo MH, Myouzen K, Kawaguchi T, Coenen MJ, van Riel PL, van de Laar MA, Guchelaar HJ, Huizinga TW, Dieudé P, Mariette X, Louis Bridges Jr S, Zhernakova A, Toes RE, Tak PP, Miceli-Richard C, Bang SY, Lee HS, Martin J, Gonzalez-Gay MA, Rodriguez-Rodriguez L, Rantapää-Dahlqvist S, Arlestig L, Choi HK, Kamatani Y, Galan P, Lathrop M; the RACI consortium; the GARNET consortium, Eyre S, Bowes J, Barton A, de Vries N, Moreland LW, Criswell LA, Karlson EW, Taniguchi A, Yamada R, Kubo M, Liu JS, Bae SC, Worthington J, Padyukov L, Klareskog L, Gregersen PK, Raychaudhuri S, Stranger BE, De Jager PL, Franke L, Visscher PM, Brown MA, Yamanaka H, Mimori T, Takahashi A, Xu H, Behrens TW, Siminovitch KA, Momohara S, Matsuda F, Yamamoto K, Plenge RM.Genetics of rheumatoid arthritis contributes to biology and drug discovery.Nature. 2013 Dec 25. doi: 10.1038/nature12873.

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    2015-01-01 liye789132251
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    2014-01-21 lmm397
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Nature :研究确定类风湿关节炎40多个遗传风险基因

近日,发表在Nature杂志上的一项荟萃分析,确定了与类风湿关节炎相关的42个新的遗传基因,有助于更好地治疗自身免疫性疾病。【原文下载】 世界范围内,每一百个人中就有一人患类风湿关节炎,根据世界卫生组织的估计。大约有一半的成年人在自身免疫性疾病诊断的10年内都无法全职工作。 新研究对10万多个体基因数据进行荟萃分析,一个重要的发现是,参与心血管疾病的一些基因变异与参与癌症和类风湿关节炎的基因重

类风湿关节炎发病机制有新解

北京大学人民医院研究人员在类风湿关节炎患者体内发现了一种新型免疫细胞——前体滤泡辅助性T细胞(pTfh),这种细胞在引起类风湿关节炎等自身免疫病的发病机制中起关键性作用,如果靶向性抑制pTfh细胞,阻断疾病的发生发展,有可能成为自身免疫病治疗的新途径。相关论文日前发表在国际杂志《免疫》上。这是该院风湿免疫科栗占国教授牵头的国家“973”计划项目的最新成果。 类风湿关

Nature:大规模研究发现类风湿关节炎的大量新基因线索

26 日,一个由美国、日本、法国、中国等国组成的国际研究小组发现 40 多个新的 DNA 区域会增加类风湿性关节炎的风险。这项工作是迄今为止开展的最大规模的基因研究,涉及近 3 万名患者。研究者相信,他们可以研发新的针对类风湿性关节炎的药物,也许有一天能够彻底治愈这一疾病。该研究结果发表在最新一期《自然》(Nature)杂志上。 该科研小组比较了关节炎患者的 DNA 和那些没有这

Arth CR:超声可以评估类风湿关节炎的活动程度

苏格兰的研究者发现,结合肌肉骨骼超声检查对疾病的活动程度进行评估,可以指导早期类风湿性关节炎的治疗选择。据格拉斯哥大学的James Dale(内外全科医学士,MBChB)及其同事介绍,在所有的临床评价中,有29%进行了肌肉骨骼超声检查,而据此获得的超声影像学结果,为是否应该调整DMARD(缓解疾病的抗风湿性药物)的治疗方案提供了相关的信息。研究人员在一月份的《关节炎治疗与研究》的杂志中表示,举例来

PLOS Pathogens :研究发现牙周病和类风湿关节炎之间的关联机制

出现牙龈疾病是否表示将来会有关节问题?虽然研究人员和临床医生们早就知道这两个流行慢性炎症性疾病--牙周病和类风湿关节炎(RA)之间存在一定的关联,但其中微生物的机制仍不清楚。 发表在PLoS Pathogens杂志上的新研究论文中,路易斯维尔(肯塔基州)学校牙科口腔健康和全身疾病组研究员Jan Potempa博士和来自欧盟牙龈和关节项目组的科学家已经发现了引发牙周疾病的细菌--卟啉单胞菌属,如何

Ann Rheum Dis:不宜过早撤去甲氨蝶呤

加拿大一项研究表明,对甲氨蝶呤(MTX)反应不佳的类风湿关节炎(RA)患者,用依那西普(ETN)+甲氨蝶呤(MTX)连续治疗6个月后,与继续联用两种药物的患者相比,撤去MTX的患者在6~12个月间未获同等程度的改善。论文8月26日在线发表于《风湿病学年鉴》(Ann Rheum Dis)杂志。  研究纳入205例符合①未接受肿瘤坏死因子抑制剂治疗,②尽管接受持续的MTX治疗,但疾病活动度评分(DAS