Sex specific effect of alcohol on hepatic plasmacytoid dendritic cells.

Sex specific effect of alcohol on hepatic plasmacytoid dendritic cells.
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DOI:
10.1016/j.intimp.2020.107166
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发表时间:
2021-01
影响因子:
5.6
通讯作者:
Aloman C
Aloman C
中科院分区:
医学2区
文献类型:
--
作者:
Alharshawi K;Fey H;Vogle A;Klenk T;Kim M;Aloman C

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酒精性肝病包括一系列临床和组织学实体。它们是由酒精及其代谢物对免疫细胞和常驻组织细胞的直接作用引起的。在人类和小鼠中,女性比男性更容易受到酒精性肝损伤。尽管参与免疫介导的组织损伤的性别特异性差异,但浆细胞样树突状细胞(pDC)尚未被彻底评估为人类或小鼠中酒精的细胞靶点。因此,采用Meadows-Cook饮食研究酒精对肝树突状细胞的影响。12周的酒精消耗增加了雌性小鼠的肝脏pDC。C-C趋化因子受体2型(CCR 2)在酒精喂养的雌性小鼠的肝脏pDC中的表达增加。骨髓移植嵌合体显示pDC的CCR 2依赖性骨髓排出。慢性酒精暴露对肝脏pDC群体具有性别特异性影响,这可能解释酒精性肝病的性别差异。
Alcoholic liver disease includes a spectrum of clinical and histological entities. They result from the combined direct effect of alcohol and its metabolites on immune cells and resident tissue cells. In humans and mice, females are more susceptible to alcoholic liver injury than males. Despite being involved in sex specific differences of immune mediated tissue injury, plasmacytoid dendritic cells (pDCs) have not been thoroughly assessed as a cellular target of alcohol in humans or mice. Therefore, Meadows-Cook diet was used to study alcohol effect on hepatic dendritic cells. Alcohol consumption for 12 weeks increased hepatic pDCs in female mice. The expression of the C-C chemokine receptor type 2 (CCR2) increased in hepatic pDC of alcohol-fed female mice. Bone marrow transplant chimera showed CCR2 dependent bone marrow egress of pDCs. Chronic alcohol exposure has a sex specific effect on hepatic pDCs population that may explain sex differences to alcoholic liver disease.
CCR2/5信号的药理抑制可防止和逆转小鼠酒精诱导的肝损伤,脂肪变性和炎症。
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