Cytotoxic T cells specific for glutamic acid decarboxylase in autoimmune diabetes.

Cytotoxic T cells specific for glutamic acid decarboxylase in autoimmune diabetes.
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自身免疫性糖尿病中针对谷氨酸脱羧酶特异的细胞毒性T细胞。

DOI:
10.1084/jem.181.5.1923
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发表时间:
1995-05-01
影响因子:
15.3
通讯作者:
Sinigaglia, Francesco
Sinigaglia, Francesco
中科院分区:
医学1区
文献类型:
--
作者:
Panina-Bordignon, Paola;Lang, Rosmarie;Van Endert, Peter M.;Benazzi, Elena;Felix, Arthur M.;Pastore, Rocco M.;Spinas, Giatgen A.;Sinigaglia, Francesco

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胰岛素依赖型糖尿病 (IDDM) 是一种自身免疫性疾病,会导致胰岛 β 细胞遭到破坏。最近表明谷氨酸脱羧酶(GAD)是非肥胖糖尿病小鼠诱导 IDDM 的关键自身抗原。在人类糖尿病中,β细胞被破坏的机制仍然未知。在这里,我们报告了无症状和近期糖尿病患者中存在 GAD 特异性细胞毒性 T 细胞的第一个证据。已合成显示人类组织相容性白细胞抗原 (HLA)-A*0201 结合基序的 GAD65 肽。其中一种肽 GAD114-123 在 HLA 组装测定中与 HLA-A*0201 分子结合。在自体抗原呈递细胞存在的情况下,用选定的肽在体外刺激来自临床前 IDDM、新近发病的 IDDM 个体和健康对照的外周血单核细胞。在 3 例病例(1 例临床前 IDDM 和 2 例新发 IDDM)中,当与 GAD114-123 肽孵育或感染表达 GAD65 的重组痘苗病毒时,我们检测到自体抗原呈递细胞的特异性杀伤。这些患者是研究对象中仅有的三名携带 HLA-A*0201 等位基因的患者。我们的研究结果表明,GAD 特异性细胞毒性 T 淋巴细胞可能在 IDDM 的初始事件中发挥关键作用。
Insulin-dependent diabetes mellitus (IDDM) is an autoimmune disease that results in the destruction of the pancreatic islet beta cells. Glutamic acid decarboxylase (GAD) has been recently indicated as a key autoantigen in the induction of IDDM in nonobese diabetic mice. In human diabetes, the mechanism by which the beta cells are destroyed is still unknown. Here we report the first evidence for the presence of GAD-specific cytotoxic T cells in asymptomatic and recent diabetic patients. GAD65 peptides displaying the human histocompatibility leukocyte antigen (HLA)-A*0201 binding motif have been synthesized. One of these peptides, GAD114-123, binds to HLA-A*0201 molecules in an HLA assembly assay. Peripheral blood mononuclear cells from individuals with preclinical IDDM, recent-onset IDDM, and from healthy controls were stimulated in vitro with the selected peptide in the presence of autologous antigen-presenting cells. In three cases (one preclinical IDDM and two recent-onset IDDM), we detected specific killing of autologous antigen-presenting cells when incubated with GAD114-123 peptide or when infected with a recombinant vaccinia virus expressing GAD65. These patients were the only three carrying the HLA-A*0201 allele among the subjects studied. Our finding suggests that GAD- specific cytotoxic T lymphocytes may play a critical role in the initial events of IDDM.
DOI: 10.1126/science.1763324
发表时间: 1991-12-20
期刊: SCIENCE
影响因子: 56.9
作者:
FAUSTMAN, D;LI, XP;GUO, J
通讯作者: GUO, J
DOI: 10.1002/eji.1830230603
发表时间: 1993-06-01
影响因子: 5.4
作者:
NIJMAN, HW;HOUBIERS, JGA;KAST, WM
通讯作者: KAST, WM
DOI: 10.1111/j.1399-0039.1993.tb01992.x
发表时间: 1993-03-01
期刊: TISSUE ANTIGENS
影响因子: --
作者:
OH, SH;FLEISCHHAUER, K;YANG, SY
通讯作者: YANG, SY
DOI: 10.1073/pnas.89.20.9519
发表时间: 1992-10-15
影响因子: 11.1
作者:
MIYAZAKI, T;MATSUDA, Y;YAMAMURA, K
通讯作者: YAMAMURA, K
DOI: 10.1038/366072a0
发表时间: 1993-11-04
期刊: NATURE
影响因子: 64.8
作者:
TISCH, R;YANG, XD;MCDEVITT, HO
通讯作者: MCDEVITT, HO