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Interleukin-4-induced natural killer cell antitumor activity in metastatic melanoma patients
European Cytokine Network ( IF 2.8 ) Pub Date : 2021-01-08 , DOI: 10.1684/ecn.2020.0449
Ana M. Vuletić , Gordana M. Konjević , Annette K. Larsen , Nada L. Babović , Vladimir B. Jurišić , Ana Krivokuća , Katarina M. Mirjačić Martinović

NK cells are important effectors of innate immunity that mount the first line of defense toward tumor growth. Interleukin-4 (IL-4) has recently been shown to regulate NK cell function, although its role in the regulation of NK cell function in cancer patients has not been clarified. The aim of this study was to investigate the effect of IL-4 on the function and the receptor characteristics of CD16-defined NK cells and their cytotoxic CD16bright and regulatory CD16dim subsets. Peripheral blood lymphocytes obtained from 36 metastatic melanoma (MM) patients treated for 18 h with 10 ng/mL IL-4 were evaluated for NK cell cytotoxicity using the radioactive 51chromium release assay. Expression of the activating receptors NKG2D and CD161, as well as the inhibitory receptors CD158a and CD158b, was analyzed on CD3-CD16+ NK cells and their subsets by flow cytometry. IL-4 induced significant in vitro enhancement of NK cell activity, as well as increased expression of the CD107a degranulation marker, by CD3-CD16dim NK cells. NKG2D expression was also increased on CD3-CD16+ cells by IL-4 with no alteration of the expression of CD161 and inhibitory KIR receptors. Although in vitro treatment with IL-4 increased both the expression of NKG2D and the cytotoxicity of NK cells, it had no detectable effect on the transcription of the TGF-β gene in NK cells of MM patients. The IL-4-induced NK cell cytotoxicity and increased activating NKG2D receptor expression may indicate an important antitumor effect of IL-4 with a potential application for immunotherapy of MM patients.



中文翻译:

白细胞介素4诱导的转移性黑色素瘤患者自然杀伤细胞抗肿瘤活性

NK细胞是先天免疫的重要效应子,对肿瘤生长具有第一道防线。尽管尚未阐明白介素-4(IL-4)在癌症患者中调节NK细胞功能的作用,但它已被证明可调节NK细胞的功能。这项研究的目的是研究IL-4对CD16定义的NK细胞及其细胞毒性CD16bright和调节性CD16dim亚群的功能和受体特性的影响。使用放射性51铬释放试验评估了从36例用10 ng / mL IL-4治疗18 h的转移性黑色素瘤(MM)患者获得的外周血淋巴细胞的NK细胞毒性。激活受体NKG2D和CD161以及抑制性受体CD158a和CD158b的表达,通过流式细胞术分析CD3-CD16 + NK细胞及其亚群。IL-4诱导CD3-CD16dim NK细胞显着增强NK细胞的体外活性,并增加CD107a脱粒标记的表达。IL-4在CD3-CD16 +细胞上的NKG2D表达也增加,而CD161和抑制性KIR受体的表达没有改变。尽管用IL-4进行体外治疗可同时增加NKG2D的表达和NK细胞的细胞毒性,但它对MM患者NK细胞中TGF-β基因的转录没有可检测的作用。IL-4诱导的NK细胞细胞毒性和活化的NKG2D受体表达增加可能表明IL-4具有重要的抗肿瘤作用,并可能用于MM患者的免疫治疗。以及CD3-CD16dim NK细胞增加CD107a脱粒标记的表达。IL-4在CD3-CD16 +细胞上的NKG2D表达也增加,而CD161和抑制性KIR受体的表达没有改变。尽管用IL-4进行体外治疗可同时增加NKG2D的表达和NK细胞的细胞毒性,但它对MM患者NK细胞中TGF-β基因的转录没有可检测的作用。IL-4诱导的NK细胞细胞毒性和活化的NKG2D受体表达增加可能表明IL-4具有重要的抗肿瘤作用,并可能用于MM患者的免疫治疗。以及CD3-CD16dim NK细胞增加CD107a脱粒标记的表达。IL-4在CD3-CD16 +细胞上的NKG2D表达也增加,而CD161和抑制性KIR受体的表达没有改变。尽管用IL-4进行体外治疗可同时增加NKG2D的表达和NK细胞的细胞毒性,但它对MM患者NK细胞中TGF-β基因的转录没有可检测的作用。IL-4诱导的NK细胞细胞毒性和活化的NKG2D受体表达增加可能表明IL-4具有重要的抗肿瘤作用,并可能用于MM患者的免疫治疗。IL-4在CD3-CD16 +细胞上的NKG2D表达也增加,而CD161和抑制性KIR受体的表达没有改变。尽管用IL-4进行体外治疗可同时增加NKG2D的表达和NK细胞的细胞毒性,但它对MM患者NK细胞中TGF-β基因的转录没有可检测的作用。IL-4诱导的NK细胞细胞毒性和活化的NKG2D受体表达增加可能表明IL-4具有重要的抗肿瘤作用,并可能用于MM患者的免疫治疗。IL-4在CD3-CD16 +细胞上的NKG2D表达也增加,而CD161和抑制性KIR受体的表达没有改变。尽管用IL-4进行体外治疗可同时增加NKG2D的表达和NK细胞的细胞毒性,但它对MM患者NK细胞中TGF-β基因的转录没有可检测的作用。IL-4诱导的NK细胞细胞毒性和活化的NKG2D受体表达增加可能表明IL-4具有重要的抗肿瘤作用,并可能用于MM患者的免疫治疗。

更新日期:2021-01-08
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