Up‐regulation of the Expression of Secretory Component and HLA Molecules in a Human Colonic Cell Line by Tumour Necrosis Factor‐α and Gamma Interferon

Up‐regulation of the Expression of Secretory Component and HLA Molecules in a Human Colonic Cell Line by Tumour Necrosis Factor‐α and Gamma Interferon
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肿瘤坏死因子-α 和γ干扰素上调人结肠细胞系中分泌成分和 HLA 分子的表达

DOI:
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发表时间:
1988
影响因子:
3.7
通讯作者:
D. LØvhaug
D. LØvhaug
中科院分区:
医学4区
文献类型:
--
作者:
D. Kvale;P. Brandtzaeg;D. LØvhaug

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分泌成分(SC)在分泌上皮的基底面上充当聚合伊加(pIgA)和pIgM的受体。这项研究表明,在人结肠细胞系(HT-29 m2)中,肿瘤坏死因子-α(TNF)和γ干扰素(IFN-γ)可叠加上调SC的产生和表面膜表达。TNF同样增强HLA I类决定簇的膜表达。此外,TNF协同增强IFN诱导的HLA II类(DR)分子的DC新生合成。这些数据表明,TNF和IFN的作用以及HLA-DR和SC/HLA I类的表达存在不同的调节机制。放线菌素D的加入消除了细胞因子介导的SC合成和表达的增加。这一观察结果表明,转录事件是细胞因子介导的SC上调所必需的。
Secretory component (SC) acts as receptor for polymeric IgA (pIgA) and pIgM on the basolateral face of secretory epithelia. This study showed that both the production and surface membrane expression of SC were additively up‐regulated by tumour necrosis factor‐α (TNF) and gamma inferreron (IFN‐γ) in a human colonic cell line (HT‐29m2). TNF likewise enhanced membrane expression of HLA class I determinants. Moreover, TNF augmented synergistically the IFN‐induced dc novo synthesis of HLA class II (DR) molecules. These data suggest that there are different regulatory mechanisms for the action of TNF and IFN and for the expression of HLA‐DR and SC/HLA class I. Addition of actinomycin D abolished the cytokine‐mediated increase of SC synthesis and expression. This observation suggested that transcriptional events are required for the cytokine‐mediated up‐regulation of SC.
DOI: 10.1039/c8ra05772a
发表时间: 2018-10-10
期刊: RSC ADVANCES
影响因子: 3.9
作者:
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发表时间: 1986
期刊: Journal of immunology (Baltimore, Md. : 1950)
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期刊: Journal of immunology (Baltimore, Md. : 1950)
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DOI: 10.1016/0003-2697(86)90314-3
发表时间: 1986-11-15
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DOI: --
发表时间: 1986
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Ruggiero,V;Tavernier,J;Fiers,W;Baglioni,C
通讯作者: Baglioni,C