Sci Rep:在过敏性鼻炎(AR)中,维他命D3可以通过抑制微小RNA-17-92来改善特异性免疫疗法疗效

2017-04-10 AlexYang MedSci原创

辅助性T细胞(Th2)极化在大多数免疫缺陷中起到重要的作用。然而,如何补救和调停已经形成的Th2极化到目前为止所知有限。已经发表的资料表明微小RNA-17-93簇与异常的免疫响应有关,25种维他命D3在体内可以调控多种生物活性。最近,研究人员提出并检测了这样的一个假设,即VD3在Th2响应中,可以促进特异性免疫疗法(SIT)的疗效。研究人员发现,用SIT或者VD3处理,可以减轻AR症状,并且可以降

辅助性T细胞(Th2)极化在大多数免疫缺陷中起到重要的作用。然而,如何补救和调停已经形成的Th2极化到目前为止所知有限。已经发表的资料表明微小RNA-17-93簇与异常的免疫响应有关,25种维他命D3在体内可以调控多种生物活性。

最近,研究人员提出并检测了这样的一个假设,即VD3在Th2响应中,可以促进特异性免疫疗法(SIT)的疗效。研究人员发现,用SIT或者VD3处理,可以减轻AR症状,并且可以降低特异免疫球蛋白和辅助性T2细胞因子在血清中的水平,还可以抑制miR-19a(miR-17-92簇成员之一)和增加白细胞介素-10在表皮B细胞中的水平。另外,白细胞介素-10在表皮B细胞中的水平在SIT和VD3同时处理时可进一步提升。研究还发现,miR-19a和白细胞介素-10的表达在AR病人的表皮B细胞中呈现着的负相关关系,并且VD3的代谢物形成了一种带有视黄酸受体的复合体,该复合体可以抑制miR-19a在B细胞中的表达。最后,研究人员指出,结合VD3的治疗可通过抑制miR-19a在B细胞中的表达来改善SIT对AR治疗的效应。

原始出处:

Zhi-Jian Yu, Lu Zeng, Xiang-Qian Luo et al. Vitamin D3 inhibits micro RNA-17-92 to promote specific immunotherapy in allergic rhinitis. Sci Rep. 03 April 2017. doi:10.1038/s41598-017-00431-1

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    2017-04-14 往日如昨

    继续学习中谢谢

    0

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    2017-04-12 bshuang
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    2017-04-12 花花1372

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参芪是一种传统的中草药,并且被广泛的用于对过敏性鼻炎(AR)的治疗。最近,研究人员对参芪的抗过敏性鼻炎的活性和其潜在的分子机制进行了研究。研究人员将卵清蛋白(OVA)诱导的过敏性鼻炎小鼠模型用来评估参芪的抗过敏性鼻炎活性,并利用小鼠嗜碱性白血病(RBL-2H3)细胞来检测参芪对免疫球蛋白E调控的细胞脱粒的影响。研究人员通过分离脾脏淋巴球,并通过蛋白免疫印迹技术检测转录因子和ELISA技术检测细胞因