Specific accumulation of lipid droplets in hepatocyte nuclei of PFOA-exposed BALB/c mice.

Specific accumulation of lipid droplets in hepatocyte nuclei of PFOA-exposed BALB/c mice.
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PFOA 暴露 BALB/c 小鼠肝细胞核中脂滴的特异性积累

DOI:
10.1038/srep02174
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发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Jiang, Guibin
Jiang, Guibin
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wang, Ling;Wang, Yu;Liang, Yong;Li, Jia;Liu, Yuchen;Zhang, Jie;Zhang, Aiqian;Fu, Jianjie;Jiang, Guibin

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脂滴(Lipid drops,LDs)是中性脂质和多种功能细胞器的重要储存结构,参与细胞的多种活动。在这项研究中,BALB/c小鼠,喂养定期或高脂肪饮食,暴露于合成的全氟化合物,全氟辛酸(PFOA)。暴露于PFOA的小鼠血清脂质和脂蛋白水平发生改变,肝细胞发生水肿变性或气球样变性。此外,我们首次报道了暴露于PFOA后LD在肝细胞核中积累。由于PFOA在结构上类似于脂肪酸(FA),这种化学物质可能会干扰FA和LD在细胞中的运输和代谢。LD在核中的这种异常定位可能与PFOA毒性的原因有关。
Lipid droplets (LDs), which are important storage structures for neutral lipids and organelles of diverse functions, participate in various cellular activities. In this study, BALB/c mice, fed a regular or a high-fat diet, were exposed to the synthetic perfluorinated compound, perfluorooctanoic acid (PFOA). PFOA-exposed mice had altered serum lipid and lipoprotein levels and hydropic degeneration or ballooning degeneration of hepatocytes. Moreover, we report for the first time that LDs accumulate in hepatic nuclei after PFOA exposure. As PFOA resembles fatty acids (FA) in its structure, this chemical may interfere with the transportation and metabolism of FA as well as LDs in the cell. This abnormal localization of LDs in the nucleus may be related to the cause of PFOA toxicity.
膳食脂肪调节对暴露于全氟辛烷磺酸的 BALB/c 小鼠胸腺和脾脏的毒理学影响
DOI: 10.1016/j.toxlet.2011.04.029
发表时间: 2011-07-28
期刊: TOXICOLOGY LETTERS
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