肥胖会调节腹腔内细胞和分子微环境:对卵巢癌风险的影响
Amanda A Shea1, Connie Lynn Heffron2, Joseph P Grieco3
1Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States.
Frontiers in immunology
|January 24, 2024
概括
肥胖会促进卵巢癌,因为它会在腹膜中创造一种有利于炎症的环境. 这种环境支持癌细胞的存活和转移,特别是在前兆中,为预防提供了潜在的目标.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 代谢疾病 代谢疾病
背景情况:
- 腹部肥胖是卵巢癌的危险因素之一.
- 将肥胖与卵巢癌进展联系在一起的分子机制尚未完全理解.
研究的目的:
- 研究肥胖如何影响免疫细胞和腹部组织中的基因表达.
- 在卵巢癌转移中,专注于腹膜血清液 (PSF) 和口腔脂肪带 (OFB).
主要方法:
- 给小鼠提供低脂肪 (LFD) 或高脂肪饮食 (HFD),并注射卵巢癌细胞.
- 分析了PSF和OFB中的免疫细胞组成和基因表达.
- 使用了流细胞计和定量PCR (qPCR).
主要成果:
- 在PSF和OFB中,HFD改变了免疫细胞,增加了髓质衍生抑制细胞 (MDSC) 和促炎因素.
- 这与较高的瘤负担以及粘附和生长基因的表达增加有关.
- 肥胖引起的变化促进了卵巢癌细胞的粘附和存活.
结论:
- 肥胖会产生一种促炎性腹膜环境,支持卵巢癌细胞存活和转移.
- 由HFD和癌细胞调节的特定基因对于体内转移至关重要.
- 已识别的基因可能作为预防肥胖个体卵巢癌的点.
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