Restoration of lipopolysaccharide-mediated cytotoxic macrophage induction in C3H/HeJ mice by interferon-gamma or a calcium ionophore.

Restoration of lipopolysaccharide-mediated cytotoxic macrophage induction in C3H/HeJ mice by interferon-gamma or a calcium ionophore.
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通过干扰素-γ或钙离子载体恢复 C3H/HeJ 小鼠中脂多糖介导的细胞毒性巨噬细胞诱导。

DOI:
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发表时间:
1987
期刊:
Japanese journal of cancer research : Gann
影响因子:
--
通讯作者:
T. Tokunaga
T. Tokunaga
中科院分区:
--
文献类型:
--
作者:
K. Akagawa;K. Kamoshita;S. Onodera;T. Tokunaga

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蛋白胨诱导的C3 H/HeJ小鼠腹腔渗出液巨噬细胞(PEM)在体外对脂多糖(LPS)的肿瘤细胞毒性活化无反应。PEM的这种无反应性通过加入用不溶性伴刀豆球蛋白A刺激的正常小鼠脾细胞的培养上清液来克服。负责PEM对LPS敏感性恢复的上清液组分被指示为干扰素(IFN)-γ,因为用抗小鼠IFN-γ抗血清而不是用抗IFN-(α + β)抗血清预处理上清液消除了上清液活性,并且因为重组鼠IFN-γ(rIFN-γ)可以取代上清液作用。rIFN-γ不仅能恢复PEM对LPS的肿瘤细胞毒活性,而且能恢复PEM对LPS致死毒性的敏感性。IFN-γ在恢复PEM的LPS反应性中的作用被钙离子载体A23187模仿,但不是被佛波醇12-肉豆蔻酸酯13-乙酸酯模仿。这些结果表明,IFN-γ可以恢复C3 H/HeJ小鼠PEM的LPS反应性,并且IFN-γ的作用涉及细胞内钙水平的升高。
Proteose peptone-induced peritoneal exudate macrophages (PEM) from C3H/HeJ mice do not respond to lipopolysaccharide (LPS) in vitro in terms of activation for tumor cytotoxicity. This unresponsiveness of PEM was overcome by addition of culture supernatant of normal mouse spleen cells stimulated with insoluble concanavalin A. The supernatant component responsible for the restoration of PEM sensitivity to LPS was indicated to be interferon (IFN)-gamma, because pretreatment of the supernatant with anti-mouse IFN-gamma antiserum, but not with anti-IFN-(alpha + beta) antiserum, abolished the supernatant activity and because recombinant murine IFN-gamma (rIFN-gamma) could replace the supernatant effect. Not only the LPS activation of tumor cytotoxicity of PEM but also the sensitivity of PEM to the lethal toxicity of LPS was restored by rIFN-gamma. IFN-gamma action in restoring the LPS responsiveness of PEM was mimicked by a calcium ionophore, A23187, but not by phorbol 12-myristate 13-acetate. These results suggest that IFN-gamma can restore LPS responsiveness of PEM from C3H/HeJ mice and that elevation of the intracellular calcium level is involved in the action of IFN-gamma.
干扰素-γ 调节小鼠腹膜巨噬细胞中的蛋白激酶 C 活性。
DOI: --
发表时间: 1985
期刊: The Journal of biological chemistry
影响因子: --
作者:
Hamilton,TA;Becton,DL;Somers,SD;Gray,PW;Adams,DO
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DOI: 10.4049/jimmunol.134.2.977
发表时间: 1985-02
影响因子: 4.4
作者:
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DOI: 10.1016/0008-8749(86)90380-1
发表时间: 1986
影响因子: 4.3
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Strassmann,G;Somers,SD;Springer,TA;Adams,DO;Hamilton,TA
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γ-干扰素作用的生化模型:用 PMA 或 A23187 体外处理后,小鼠腹膜巨噬细胞上转铁蛋白受体的表达发生改变。
DOI: --
发表时间: 1985
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Weiel,JE;Adams,DO;Hamilton,TA
通讯作者: Hamilton,TA
钙离子载体 A23187 诱导骨髓源性巨噬细胞启动杀死肿瘤细胞的机制:与干扰素启动的关系。
DOI: 10.1073/pnas.82.17.5959
发表时间: 1985
影响因子: 11.1
作者:
Johnson,HM;Torres,BA
通讯作者: Torres,BA