孕产妇的肥胖性饮食作用于原始瘤细胞,以增加神经纤维素瘤1型光学通路质瘤的发生率和延迟时间
Ambrose Chan1, Kailong Zhang1, Gemma Martin1
1Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA.
Neuro-oncology
|July 18, 2024
概括
母亲暴露在高脂肪,高糖饮食中,通过影响早期大脑发育,增加了儿科低度质瘤的风险. 这项研究表明,在子宫内的饮食,而不是母亲的体重,会影响小鼠的瘤起源和进展.
科学领域:
- 神经科学是一个神经科学.
- 在瘤学瘤学.
- 发展生物学 发展生物学
背景情况:
- 儿科低度质瘤的发病率正在上升,与增加的母婴和儿科肥胖症相吻合.
- 孕产妇肥胖与更高的儿科脑瘤率有关.
- 高脂肪,高糖 (HFHS) 饮食促进肥胖,并可以增加胚胎神经质原生细胞 (NPC) 增殖,这是潜在的质瘤来源.
研究的目的:
- 通过影响原发瘤细胞,对肥胖性饮食在子宫内暴露会改变儿科脑瘤透率和延迟的假设进行调查.
- 确定母亲饮食与母亲体重在儿科质瘤发展中的作用.
主要方法:
- 使用了神经纤维素瘤1型 (NF1) 儿科脑瘤倾向的小鼠模型.
- 孕妇和后代暴露于肥胖的HFHS饮食或对照.
- 在不同时间点分析胎儿神经发育,NPC增殖,质分化和瘤形成.
主要成果:
- 母亲HFHS饮食暴露增加了胎儿第三心室区域 (TVZ) 的NPC增殖和质分化.
- 这些影响取决于母亲的饮食,而不是母亲的体重.
- 肥胖性饮食加速了高透率NF1菌株的结质瘤形成,增加了低透率菌株的透率;仅仅在产后暴露时就不会产生类似的结果.
结论:
- 在小鼠模型中,孕产妇的肥胖性饮食是儿科光学通路质瘤 (OPG) 形成的危险因素.
- 在子宫内接触肥胖性饮食会影响起源的瘤细胞,影响质瘤的发展.
- 这些发现强调了孕期母亲饮食在儿科脑瘤病因学中的关键作用.
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