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High fat diet induces alterations to intraepithelial lymphocyte and cytokine mRNA in the small intestine of C57BL/6 mice

机译:高脂饮食诱导C57BL / 6小鼠小肠上皮内淋巴细胞和细胞因子mRNA的改变

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The aim of this work was to investigate the possible effect of high fat diet (HFD) induced obesity on iIEL subsets and their cytokine mRNA levels in C57BL/6 mice. Two groups of C57BL/6 mice were kept in separate cages and fed with either a normal diet (control) or HFD. After 12 weeks of treatment the iIELs were isolated and analyzed by FACS. Additionally, the mRNA levels of IL-2, IL-15, TGF-β, TNF-α, IFN-γ granzyme B and perforin were quantified by RT-PCR. We found that HFD induced a proportional shift in TCRγδ+ and TCRαβ+ composition within the iIEL population. Also, a significant increase in the mRNA levels of TNF-α, perforin and granzyme B was detected on iIELs from HFD mice. Our findings may provide important insights into intestinal changes associated to HFD induced obesity, which could eventually lead to intestinal inflammation. However, further investigations are required to elucidate the molecular mechanism of HFD induced changes on iIELs.
机译:这项工作的目的是调查高脂饮食(HFD)诱导的肥胖对C57BL / 6小鼠iIEL亚型及其细胞因子mRNA水平的可能影响。将两组C57BL / 6小鼠关在单独的笼子里,并喂以正常饮食(对照)或HFD。治疗12周后,分离iIEL并通过FACS分析。另外,通过RT-PCR定量IL-2,IL-15,TGF-β,TNF-α,IFN-γ颗粒酶B和穿孔素的mRNA水平。我们发现,HFD在iIEL人群中诱导了TCRγδ + 和TCRαβ + 成分的比例变化。此外,在来自HFD小鼠的iIEL上检测到TNF-α,穿孔素和颗粒酶B的mRNA水平显着增加。我们的发现可能为与HFD引起的肥胖相关的肠道变化提供重要见解,而肥胖最终可能导致肠道炎症。但是,需要进一步的研究来阐明HFD诱导iIEL改变的分子机制。

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