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首页> 外文期刊>Journal of applied toxicology >Phthalate esters modulate the differentiation and maturation of mouse peripheral blood mononuclear cell-derived dendritic cells
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Phthalate esters modulate the differentiation and maturation of mouse peripheral blood mononuclear cell-derived dendritic cells

机译:邻苯二甲酸酯调节小鼠外周血单核细胞衍生的树突细胞的分化和成熟

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ABSTRACT: Phthalate esters, such as di-(2-ethylhexyl) phthalate (DEHP), are widespread environmental contaminants. Previously, we have observed that DEHP exacerbates dermatitis elicited by mite antigen in NC/Nga mice. Also, OEHP enhances the functions of bone marrow-derived dendritic cells (DCs) in vitro. The present study sought to investigate whether phthalate esters affect peripheral blood mononuclear cell (PBMC)-derived DCs of NC/Nga mice. First, we studied the time course of DC generation from PBMCs and the dose dependency of granulocyte macrophage colony-stimulating factor and interleukin-4, and then determined the conditions under which DC differentiation and maturation are moderately induced from PBMCs. Under the conditions determined above, DEHP at 10 um significantly inhibited the expression of DC differentiation and maturation markers, such as CD11c, CD40, CD80, CD86 and CD205, whereas mono-(2-ethylhexyl) phthalate, a metabolite of DEHP, did not. Furthermore, the effects of DEHP on PBMC-derived DCs were partially rescued by treatment with IC1182,780, an estrogen receptor antagonist. Taken together, these results suggest that DEHP can modulate the differentiation and maturation of mouse PBMC-derived DCs at least partially through activation of the estrogen receptor under our experimental conditions.
机译:摘要:邻苯二甲酸酯,如二 - (2-乙基己基)邻苯二甲酸酯(DEHP),是广泛的环境污染物。以前,我们观察到Dehp加剧了NC / NGA小鼠中螨抗原引发的皮炎。此外,OEHP在体外增强了骨髓衍生的树突细胞(DCS)的功能。本研究试图研究邻苯二甲酸酯是否影响外周血单核细胞(PBMC)的NC / NGA小鼠的DC。首先,我们研究了从PBMCS和粒细胞巨噬细胞刺激因子和白细胞介素-4的剂量依赖性的DC生成的时间过程,然后确定从PBMC中共分化和成熟的条件。在上述病症下,DeHP在10μm下显着抑制DC分化和成熟标志物的表达,例如CD11C,CD40,CD80,CD86和CD205,而单 - (2-乙基己基)邻苯二甲酸酯,DEHP的代谢物没有。此外,通过用IC1182,780,雌激素受体拮抗剂治疗部分地抵押DEHP对PBMC衍生DC的影响。总之,这些结果表明DEHP可以在我们的实验条件下至少部分地通过激活雌激素受体来调节小鼠PBMC衍生DC的分化和成熟。

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