血液细胞中HAMP的DNA甲基化的差异预测了2型糖尿病的发展
Meriem Ouni1, Fabian Eichelmann2, Markus Jähnert1
1German Institute of Human Nutrition, Department of Experimental Diabetology, Potsdam-Rehbruecke, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany.
Molecular metabolism
|July 10, 2023
概括
在HAMP基因的表观遗传变化,特别是DNA甲基化,可以作为2型糖尿病 (T2D) 风险的早期生物标志物. 肝脏中HAMP表达的降低与T2D易感性增加有关.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 代谢性疾病研究研究
- 生物标志物发现发现
背景情况:
- 早期发现2型糖尿病 (T2D) 对于有效的疾病管理至关重要.
- 为了改善T2D风险评估,需要新的,敏感的和可访问的生物标志物.
研究的目的:
- 确定用于预测2型糖尿病 (T2D) 风险的新型表观遗传生物标志物.
- 研究DNA甲基化和基因表达在T2D病变发生中的作用.
主要方法:
- 在易患糖尿病和抗糖尿病小鼠中比较肝表达和DNA甲基化.
- 在人肝和血液样本中验证的候选生物标志物 (HAMP).
- 评估HAMP甲基化对基因表达和胰岛素信号传递的功能影响.
主要成果:
- 鉴定了12种肝激素的失调,HAMP在易患糖尿病的小鼠中表现出最显著的下降,这是由于促进剂高甲基化.
- 在小鼠中,较低的HAMP (hepcidin) 丰度与糖尿病易感性相关.
- 在人类肝脏活检和2型糖尿病风险人群的血细胞中观察到下调的HAMP表达和增加的DNA甲基化.
结论:
- HAMP基因的表观遗传变化,特别是DNA甲基化模式,可以作为2型糖尿病的早期预测标志物.
- 这些发现强调了HAMP作为T2D风险评估的潜在生物标志物.
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