Nat Commun:寄生虫激活免疫或可抑制类风湿性关节炎

2016-06-15 佚名 生物谷

来自德国的科学家们在国际学术期刊Nature Communication上发表了一项最新研究进展,他们发现寄生虫感染激活的特定免疫反应可以帮助治疗小鼠的类风湿性关节炎。这项研究对于人类类风湿性关节炎的治疗也有一定提示意义。 类风湿性关节炎是一种影响关节的自身免疫性疾病。与类风湿性关节炎相关的Th1和Th17这两种免疫反应本身具有对抗细菌和病毒的作用,但是在类风湿性关节炎患者中它们会攻击病人的软

来自德国的科学家们在国际学术期刊Nature Communication上发表了一项最新研究进展,他们发现寄生虫感染激活的特定免疫反应可以帮助治疗小鼠的类风湿性关节炎。这项研究对于人类类风湿性关节炎的治疗也有一定提示意义。

类风湿性关节炎是一种影响关节的自身免疫性疾病。与类风湿性关节炎相关的Th1和Th17这两种免疫反应本身具有对抗细菌和病毒的作用,但是在类风湿性关节炎患者中它们会攻击病人的软骨,造成组织损伤,炎症和疼痛。如何阻断类风湿性关节炎疾病中免疫细胞对自身的攻击一直不是很清楚,而寄生虫感染与关节炎之间的关系以前也尚未建立。

在这项最新研究中,Aline Bozec和她的研究团队给每组小鼠进行了多种实验在小鼠中诱发了关节炎,然后让其中的一部分被巴西日圆线虫(Nippostrongylus brasiliensis)这种寄生虫感染,来研究小鼠的免疫反应。他们把感染后的小鼠和对照组进行了比较,发现寄生虫感染可以保护小鼠不受关节炎的困扰,并且这种保护受到Th2特定免疫反应的调节,这种免疫反应由寄生虫激活,之前研究已经证明Th2免疫反应能够促进组织修复和抑制炎症反应,在这项研究中研究人员发现Th2免疫反应能够有效抵消导致关节炎的Th1和Th17两种免疫反应。研究者同时发现在20个患有关节炎的人类患者的膝关节组织样本中存在Th2免疫反应的细胞成分,这表明即使在没有寄生虫感染的情况下,这些免疫反应已经参与了对关节炎病理的抑制。

这些结果表明,通过使用类似疫苗的刺激物来激活Th2免疫反应,将有助于开发新的类风湿性关节炎治疗方法。

原始出处 

Zhu Chen Darja Andreev Katharina Oeser Branislav Krljanac Axel Hueber Arnd Kleyer David Voehringer Georg Schett Aline Bozec.Th2 and eosinophil responses suppress inflammatory arthritis.Nat Commun.2016

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    2017-02-11 liye789132251
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    2016-07-20 liuli5079
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    2016-06-17 lmm397
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治疗靶向治疗类风湿性关节炎(RA)是有效的,但目前还缺乏持续靶向治疗的长期效果。该研究的目的是在4项治疗策略中,RA患者经过10年的靶向治疗后的长期预后。研究人员在荷兰进行了一项随机试验,招募了508例早期类风湿关节炎患者。该研究的干预措施为单药序贯治疗(策略1),联合升压治疗(策略2),或泼尼松(策略3)或英夫利昔单抗(策略4)初始联合治疗,所有策略都是在靶向治疗降低疾病活动后进行。功能能力(健

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该研究的目的是比较基于缓解疾病的抗风湿性药物(DMARD)甲氨蝶呤治疗未经治疗过的类风湿性关节炎患者或对甲氨蝶呤反应不足的患者治疗结果。原始出处:Glen S Hazlewood,Cheryl Barnabe,George Tomlinson,et al.Methotrexate monotherapy and methotrexate combination therapy with tradi

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J Rheumatol:利妥昔单抗治疗RA后乙肝病毒再活化的风险很低据发表于对于J Rheumatol 的一项新的研究报道显示,对于曾患有乙型现已治愈的类风湿性关节炎患者来说,使用利妥昔单抗联合疾病修饰型抗风湿病药物治疗后乙型肝炎病毒再活化的风险很低。研究共纳入了33名乙肝表面抗原阴性/抗乙型肝炎核心抗原阳性的来风湿性关节炎患者。在为期34个月的治疗中,研究人员给予这些患者3个周期的利妥昔单抗联合