肥胖促进了胺介导的NADPH氧化酶在急性髓性白血病
Weiyuan Wang1,2, Rachel J Sabol1, Alexus M Day1
1Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH 03824 USA.
概括
肥胖症通过增加白血病负担使急性髓性白血病 (AML) 的进展恶化. 这部分是通过肥胖诱导的胺介导NADPH氧化酶2 (NOX2) 的上调,这是AML的关键氧化途径.
科学领域:
- 在瘤学瘤学.
- 代谢综合征是代谢综合征的一种.
- 血液学 血液学 血液学
背景情况:
- 急性髓性白血病 (AML) 是髓性细胞的癌症.
- 肥胖与癌症发病率增加有关,包括血液癌症.
- 将肥胖与AML进展联系在一起的具体机制尚未完全理解.
研究的目的:
- 调查肥胖在AML进展中的作用.
- 利用一种新的转基因小鼠模型来研究肥胖和AML.
- 为了阐明参与肥胖驱动的AML进展的分子途径.
主要方法:
- 通过交叉Flt3ITD和Lepob/ob小鼠开发了一种新的转基因小鼠模型.
- 在肥胖与非肥胖的AML小鼠模型中评估白血病负担.
- 对NADPH氧化酶2 (NOX2) 表达和活性的分析,重点关注陶胺介导通路.
主要成果:
- 肥胖在AML小鼠模型中显著增加了白血病负担.
- 通过胺和胺-1-酸盐介导的NADPH氧化酶2 (NOX2) 调节肥胖.
- 在肥胖的AML小鼠中观察到NOX2驱动的氧化途径增加.
结论:
- 肥胖直接导致急性髓性白血病的进展.
- 陶胺介导的NOX2通路是将肥胖与AML进展联系起来的关键机制.
- 针对氧化应激路径可能为肥胖患者的AML提供治疗策略.
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