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2篇 您的检索式:作者名="Gangzheng Hu"
    题名 作者 年代 出处 被引量
1Mesenchymal stem cells: a new strategy for immunosuppression and tissue repair显示文摘间充质的干细胞(MSC ) 为治疗各种各样的疾病有大潜力,特别那些与织物有关损坏包含有免疫力的反应。各种各样的研究证明了 MSC 在 vitro 并且在 vivo 是强烈抑制免疫力的。我们的最近的研究证明了那未刺激的 MSC 确实不能免疫力的抑制;他们与 TNF- 伪, IL-1 伪或 IL-1 尾与激活的淋巴细胞的上层清液,或与 IFN- 纬的联合在刺激之上变得 potently 抑制免疫力。这观察表明在某些情形下面,煽动性的 cytokines 能实际上变得抑制免疫力。我们证明在调停 MSC 的免疫力的抑制的机制有一个种类变化:由告知 cytokine 的老鼠 MSC 的免疫力的抑制被氮的氧化物调停(没有) 而由告知 cytokine 的人的 MSC 的免疫力的抑制通过 indoleamine 被执行 2, 3-dioxygenase (伊多语) 。在有煽动性的 cytokines 的刺激之上,另外,老鼠和人的 MSC 分泌几白血球 chemokines 显然服务与 MSC 吸引有免疫力的房间进最近,在哪儿不或伊多语被预言很活跃。因此,由煽动性的刺激 cytokine 的 MSC 的免疫力的抑制经由 chemokines 的一致行动发生并且免疫者禁止没有或伊多语由 MSC 生产了。因此,我们的结果在对待有免疫力的回答导致的织物损害关于调停 MSC 的免疫力的抑制并且为 MSC 的更好的申请的机制提供新奇信息。Yufang Shi Gangzheng Hu Juanjuan Su Wenzhao Li Qing Chen Peishun Shou Chunliang Xu Xiaodong Chen Yin Huang Zhexin Zhu Xin Huang Xiaoyan Han Ningxia Xie Guangwen Ren 2010Cell Research2010,20,5:72
2Antigen-non-specific regulation centered on CD25^(+)Foxp3^(+) Treg cells显示文摘CD25^(+)Foxp3^(+) regulatory T cells(Tregs)are of special interest in immunology because of their potent inhibitory function.Many fundamental aspects of Tregs,including their antigenic profile,development and peripheral homeostasis,remain highly controversial.Here,we propose a Treg-centered antigen-non-specific immunoregulation model focused on the T-cell system,particularly on CD41 T cells.The T-cell pool consists of naive T cells(Tnais),Tregs and effector T cells(Teffs).Regardless of antigen specificity,the ratio of the activated T-cell subsets(Treg/Teff/Tnai)and their temporal and spatial uniformity dictate the differentiation of Tnais.Activated Tregs inhibit the activation,proliferation,induction and activity of Teffs;in contrast,activated Teffs inhibit the induction of Tregs from Tnais but cooperate with Treg-specific antigens to promote the proliferation and activity of Tregs.In many cases,these interactions are antigen-non-specific,whereas the activation of both Tregs and Teffs is antigen-specific.Memory T-cell subsets are essential for the maintenance of adaptive immune responses,but the antigen-non-specific interactions among T-cell subsets may be more important during the establishment of the adaptive immune system to a newly encountered antigen.This is especially important when new and memory antigens are presented closely—both temporally and spatially—to T cells,because there are always baseline levels of activated Tregs,which are usually higher than levels of memory T cells for new antigens.Based on this hypothesis,we further infer that,under physiological conditions,Tregs in lymph nodes mainly recognize antigens frequently released from draining tissues,and that these self-reactive Tregs are commonly involved in the establishment of adaptive immunity to new antigens and in the feedback control of excessive responses to pathogens.Gangzheng Hu Zhongmin Liu Changqing Zheng Song Guo Zheng 2010Cellular & Molecular Immunology2010,7,6:2
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