Aerosol insulin induces regulatory CD8 gamma delta T cells that prevent murine insulin-dependent diabetes.

Aerosol insulin induces regulatory CD8 gamma delta T cells that prevent murine insulin-dependent diabetes.
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气溶胶胰岛素诱导调节性CD8伽马三角细胞,可预防鼠胰岛素依赖性糖尿病。

DOI:
10.1084/jem.184.6.2167
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发表时间:
1996-12-01
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Takahashi K
Takahashi K
中科院分区:
其他
文献类型:
--
作者:
Harrison LC;Dempsey-Collier M;Kramer DR;Takahashi K

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细胞免疫低反应性可通过将可溶性蛋白抗原呈递至粘膜表面来诱导。大多数粘膜介导的耐受性的研究使用了口服途径的抗原递送,很少有检查自身免疫性疾病的自然模型中的自身抗原。胰岛素是人类和患有胰岛素依赖性糖尿病(IDDM)的非肥胖糖尿病(NOD)小鼠的自身抗原。当我们在NOD小鼠亚临床疾病发作后给予胰岛素气雾剂时,胰岛病理学和糖尿病发病率均显著降低。胰岛素处理的小鼠循环中胰岛素抗体增加,脾细胞对主要表位胰岛素B链氨基酸9-23的增殖缺失,这与IL-4,特别是IL-10分泌增加有关,对谷氨酸脱羧酶(另一种胰岛自身抗原)的增殖减少。来自胰岛素处理小鼠的脾细胞抑制糖尿病小鼠的T细胞将糖尿病过继转移到非糖尿病小鼠的能力被证明是由少量的CD 8 γδ T细胞引起的。这些发现揭示了抑制细胞介导的自身免疫性疾病的新机制。通过气雾剂胰岛素诱导调节性CD 8 γδ T细胞是一种具有预防人IDDM意义的治疗策略。
Cellular immune hyporesponsiveness can be induced by the presentation of soluble protein antigens to mucosal surfaces. Most studies of mucosa-mediated tolerance have used the oral route of antigen delivery and few have examined autoantigens in natural models of autoimmune disease. Insulin is an autoantigen in humans and nonobese diabetic (NOD) mice with insulindependent diabetes mellitus (IDDM). When we administered insulin aerosol to NOD mice after the onset of subclinical disease, pancreatic islet pathology and diabetes incidence were both significantly reduced. Insulin-treated mice had increased circulating antibodies to insulin, absent splenocyte proliferation to the major epitope, insulin B chain amino acids 9–23, which was associated with increased IL-4 and particularly IL-10 secretion, and reduced proliferation to glutamic acid decarboxylase, another islet autoantigen. The ability of splenocytes from insulin-treated mice to suppress the adoptive transfer of diabetes to nondiabetic mice by T cells of diabetic mice was shown to be caused by small numbers of CD8 γδ T cells. These findings reveal a novel mechanism for suppressing cell-mediated autoimmune disease. Induction of regulatory CD8 γδ T cells by aerosol insulin is a therapeutic strategy with implications for the prevention of human IDDM.
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发表时间: 1993-09-01
影响因子: 4.4
作者:
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通讯作者: WRAITH, DC
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影响因子: --
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