Characterization of immunosuppressive functions of murine peritoneal macrophages induced with various agents

Characterization of immunosuppressive functions of murine peritoneal macrophages induced with various agents
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不同药物诱导的小鼠腹腔巨噬细胞免疫抑制功能的表征

DOI:
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发表时间:
1992
影响因子:
5.5
通讯作者:
H. Saito
H. Saito
中科院分区:
医学3区
文献类型:
--
作者:
H. Tomioka;H. Saito

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用硫代乙醇酸盐、酵母多糖A、OK-432、卡介苗或活的细胞内分枝杆菌等刺激物诱导的小鼠腹腔巨噬细胞(MøS)对刀豆蛋白A(ConA)诱导的脾T细胞的分裂反应表现出不同程度的抑制活性。所有试验均显示,S显着抑制T细胞产生白介素2(IL-2)的能力,但这种抑制作用不足以解释T细胞Con A有丝分裂生成减少的原因。相反,它们显著地抑制IL-2反应性T细胞的产生,并且这种抑制足以导致T细胞有丝分裂的减少。对佛波醇肉豆蔻酸醋酸酯触发的反应,观察到一个给定的Mø的免疫抑制活性与其产生活性氧的能力(以化学发光测量)之间的一般关系(r=.84,P<.005)。但超氧化物歧化酶和过氧化氢酶不降低受试者的免疫抑制活性,说明活性氧自由基本身并不介导这些受试者的免疫抑制活性的表达,而前列腺素合成的阻断剂消炎痛则使其免疫抑制活性部分降低。在一氧化氮自由基(NO·)清除剂肌红蛋白存在下,重组干扰素γ(干扰素-γ)诱导的摩尔S抑制活性显著降低。肿瘤坏死因子α(肿瘤坏死因子α)即使与干扰素-γ联合应用,也不能影响脾T细胞有丝分裂。另一方面,包括油酸、亚油酸、亚麻酸和花生四烯酸在内的不饱和长链脂肪酸显著降低T细胞功能。这些发现提示前列腺素、NO·和长链不饱和脂肪酸作为MéS免疫抑制功能表达的中介物质具有重要作用。
Murine peritoneal macrophages (Møs), induced with stimuli such as thioglycollate, zymosan A, OK‐432, bacille Calmette‐Guérin (BCG), or live Mycobacterium intracellulare, showed varying levels of inhibitory activity against the concanavalin A (Con A) blastogenic response of splenic T cells. All test Møs significantly inhibited the interleukin 2 (IL‐2)–producing ability of T cells but this inhibition was not enough to explain the observed reduction in T cell Con A mitogenesis. In contrast, they markedly inhibited IL‐2–reactive T cell generation, and the inhibition was sufficient to cause the reduction in T cell mitogenesis. A general relationship was observed between immunosuppressive activity of a given Mø and its active oxygen‐producing ability (measured in terms of chemiluminescence) in response to phorbol myristate acetate triggering (r = .84, P < .005). However, the suppressor activity of test Møs was not reduced by superoxide dismutase and catalase, indicating that active oxygen radicals themselves did not mediate the expression of the immunosuppressive activity of these Møs. On the other hand, indomethacin (an inhibitor of prostaglandin synthesis) caused a partial reduction in their immunosuppressive activity. The suppressor activity of Møs induced with intraperitoneal injection of recombinant interferon γ (IFN‐γ) was markedly reduced in the presence of myoglobin, a scavenger for nitric oxide radical (NO·). Tumor necrosis factor α (TNF α) failed to affect Con A mitogenesis of splenic T cells, even in combination with IFN‐γ. On the other hand, unsaturated long‐chain fatty acids including oleic, linoleic, linolenic, and arachidonic acids markedly reduced the T cell function. These findings suggest some important roles of prostaglandins, NO·, and long‐chain unsaturated fatty acids as mediators of the expression of immunosuppressive function of the peritoneal Møs.
氧中间体的分泌:在活化巨噬细胞的效应功能中的作用。
DOI: --
发表时间: 1982
期刊: Federation proceedings
影响因子: --
作者:
Nathan,CF
通讯作者: Nathan,CF
前列腺素 E2 作用于 T 淋巴细胞激活的两种不同途径:抑制白细胞介素 2 的产生和下调转铁蛋白受体的表达。
DOI: --
发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Chouaib,S;Welte,K;Mertelsmann,R;Dupont,B
通讯作者: Dupont,B
小棒状杆菌诱导的抑制性 T 细胞和抑制性巨噬细胞。
DOI: 10.1016/0008-8749(81)90219-7
发表时间: 1981
影响因子: 4.3
作者:
Lichtenstein,A;Murahata,R;Sugasawara,R;Zighelboim,J
通讯作者: Zighelboim,J
DOI: 10.1073/pnas.84.17.6020
发表时间: 1987-09-01
影响因子: 11.1
作者:
ASSOIAN, RK;FLEURDELYS, BE;SPORN, MB
通讯作者: SPORN, MB
DOI: --
发表时间: 1986
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Fujiwara,H;Ellner,JJ
通讯作者: Ellner,JJ