在高脂肪饮食养期间,在白脂肪组织中早期的巨介导Bdnf表达
Kurumi Sakata1, Takehiro Kobayashi1, Saki Yokokura1
1Laboratory of Molecular Neuroscience, Faculty of Pharmacy, Takasaki University of Health and Welfare, 60 Nakaorui-machi, Takasaki, Gunma, 370-0033, Japan.
Biochemical and biophysical research communications
|November 4, 2023
概括
高脂肪饮食增加了白色脂肪组织 (WAT) 中的大脑衍生神经营养因子 (BDNF),与体重增加相关. 巨细胞调解了这种早期肥胖反应,这表明BDNF在WAT中发挥了新的作用.
科学领域:
- 代谢和内分泌学
- 肥胖问题研究研究
- 分子生物学分子生物学
背景情况:
- 大脑衍生神经营养因子 (BDNF) 在外围组织中发现,包括白色脂肪组织 (WAT).
- 肥胖症涉及脂肪组织的复杂生理变化,包括炎症和改变的基因表达.
研究的目的:
- 调查BDNF表达在饮食诱导肥胖的早期阶段在WAT中的作用.
- 确定细胞机制,特别是巨细胞的参与,在高脂肪饮食 (HFD) 条件下调节BDNF在WAT中的表达.
主要方法:
- 小鼠被食高脂肪饮食 (HFD) 2 周.
- 在WAT中对Bdnf,缺氧诱导因素1α和血小板衍生生长因子的定量mRNA表达分析.
- 使用clodronate脂质体进行巨细胞枯竭.
- 测量体重变化的测量.
主要成果:
- 在两周内,HFD显著增加了Bdnf mRNA表达在 inguinal WAT (iWAT) 和 epididymal WAT (eWAT) 中.
- 增加WAT中的Bdnf表达与体重增加相关,这表明Bdnf在早期肥胖中起作用.
- 在HFD下,巨细胞标记物F4/80的表达在iWAT中增加.
- 巨细胞的消耗消除了HFD诱导的Bdnf表达在iWAT中,并减少了体重增加.
结论:
- 在iWAT中由巨介导的BDNF诱导与早期HFD诱导的肥胖症的体重增加有关.
- 在肥胖发展的初始阶段,BDNF可能在白色脂肪组织中发挥一种新的作用.
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