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体外脂肪酸组成改变后细胞介导的细胞毒性功能的调节

Modulation of cell-mediated cytotoxicity function after alteration of fatty acid composition in vitro.

作者信息

Bialick R, Gill R, Berke G, Clark W R

出版信息

J Immunol. 1984 Jan;132(1):81-7.

PMID:6197462
Abstract

Fatty acids incorporated into cytotoxic T lymphocytes (CTL) during in vitro stimulation can enhance or inhibit the subsequent expression of cell-mediated cytotoxicity, depending on the class of fatty acid. Unsaturated fatty acids enhance cytolysis, whereas saturated fatty acids inhibit it. The effects of fatty acids on cytolysis can be mediated in the absence of cell division, thus eliminating relative clonal amplification or contraction as a basis for the observed effects. Nevertheless, the net result of fatty acid alteration is an increase (unsaturated fatty acids) or decrease (saturated fatty acids) in the frequency, in the treated immune population, of CTL capable of lysing target cells. These observations are best explained by a model in which fatty acid incorporated into cell membrane phospholipids results in a direct recruitment into or out of the pool of CTL within the immune population capable of lysing target cells under the conditions employed to assay cytotoxicity.

摘要

在体外刺激过程中掺入细胞毒性T淋巴细胞(CTL)的脂肪酸可增强或抑制随后细胞介导的细胞毒性表达,这取决于脂肪酸的类别。不饱和脂肪酸增强细胞溶解作用,而饱和脂肪酸则抑制该作用。脂肪酸对细胞溶解的影响可在无细胞分裂的情况下介导,从而排除了相对克隆扩增或收缩作为观察到的效应的基础。然而,脂肪酸改变的最终结果是,在经处理的免疫群体中,能够裂解靶细胞的CTL频率增加(不饱和脂肪酸)或降低(饱和脂肪酸)。这些观察结果最好用以下模型来解释:掺入细胞膜磷脂的脂肪酸导致在用于测定细胞毒性的条件下,直接招募进入或离开免疫群体中能够裂解靶细胞的CTL池。

相似文献

1
Modulation of cell-mediated cytotoxicity function after alteration of fatty acid composition in vitro.体外脂肪酸组成改变后细胞介导的细胞毒性功能的调节
J Immunol. 1984 Jan;132(1):81-7.
2
Membrane structure-function relationships in cell-mediated cytolysis. I. Effect of exogenously incorporated fatty acids on effector cell function in cell-mediated cytolysis.细胞介导的细胞溶解中的膜结构 - 功能关系。I. 外源掺入脂肪酸对细胞介导的细胞溶解中效应细胞功能的影响。
J Immunol. 1980 Aug;125(2):689-95.
3
Lipid modulation of mammary tumor cell cytolysis: direct influence of dietary fats on the effector component of cell-mediated cytotoxicity.乳腺肿瘤细胞溶解的脂质调节:膳食脂肪对细胞介导的细胞毒性效应成分的直接影响。
J Natl Cancer Inst. 1985 Mar;74(3):675-80.
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Alloantigen-induced cytotoxicity against syngeneic tumor cells: analysis at the clonal level.同种异体抗原诱导的针对同基因肿瘤细胞的细胞毒性:克隆水平分析。
J Immunol. 1984 Jun;132(6):3218-25.
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Free fatty acid perturbation of transmembrane signaling in cytotoxic T lymphocytes.细胞毒性T淋巴细胞中跨膜信号传导的游离脂肪酸扰动。
J Immunol. 1989 Oct 1;143(7):2302-10.
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Inhibition of cytotoxic T lymphocyte-mediated lysis by ETYA: effect independent of arachidonic acid metabolism.
J Immunol. 1985 Feb;134(2):1130-5.
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Mechanism of cell-mediated cytotoxicity at the single cell level. VIII. Kinetics of lysis of target cells bound by more than one cytotoxic T lymphocyte.单细胞水平的细胞介导细胞毒性机制。VIII. 被多个细胞毒性T淋巴细胞结合的靶细胞的裂解动力学。
J Immunol. 1984 May;132(5):2190-8.
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Free fatty acids inhibit cytotoxic T lymphocyte-mediated lysis of allogeneic target cells.游离脂肪酸抑制细胞毒性T淋巴细胞介导的同种异体靶细胞裂解。
J Immunol. 1990 Aug 15;145(4):1074-7.
9
Free fatty acids are produced in and secreted from target cells very early in cytotoxic T lymphocyte-mediated killing.在细胞毒性T淋巴细胞介导的杀伤作用中,游离脂肪酸在靶细胞内产生并在极早期从靶细胞分泌出来。
J Immunol. 1991 Oct 15;147(8):2809-15.
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Memory CTL-hybridoma: a model system to analyze the anamnestic response of cytolytic T lymphocytes.记忆性细胞毒性T淋巴细胞杂交瘤:一种用于分析细胞毒性T淋巴细胞回忆反应的模型系统。
J Immunol. 1984 Nov;133(5):2369-74.

引用本文的文献

1
Inhibition of lymphocyte proliferation by free fatty acids. II. Toxicity of stearic acid towards phytohaemagglutinin-activated T cells.游离脂肪酸对淋巴细胞增殖的抑制作用。II. 硬脂酸对植物血凝素激活的T细胞的毒性。
Immunology. 1984 Nov;53(3):507-14.
2
Eicosapentaenoic acid inhibits antigen-presenting cell function of murine splenocytes.二十碳五烯酸抑制小鼠脾细胞的抗原呈递细胞功能。
Immunology. 1992 Feb;75(2):330-5.