与祖先相关的树皮变异会影响乳腺上皮细胞入侵
Madison G Schmidtmann1, Victoria Elliott1, James W Clancy1
1Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA.
iScience
|June 16, 2025
概括
乳腺癌的预后可能受到乳腺组织中发现的特定细胞群 (PZP细胞) 的影响. 这些细胞在上皮细胞中促进侵入性行为,有助于了解非洲血统女性的差异.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 遗传学 遗传学 是一个
背景情况:
- 由于影响疾病结果的生物因素,乳腺癌不成比例地影响非洲血统 (AA) 的女性.
- 表达PROCR,ZEB1和PDGFRα (PZP) 的特定细胞群在健康的AA捐赠者的乳腺层和欧洲血统 (EA) 捐赠者的瘤邻近组织中得到丰富.
研究的目的:
- 研究PZP细胞在促进乳腺癌上皮质细胞入侵中的作用.
- 阐明PZP细胞影响表皮细胞侵入性的分子机制.
主要方法:
- 利用3D细胞模型观察上皮细胞入侵.
- 在细胞外矩阵入侵期间分析了领导者-追随者行为.
- 研究了AKT激活和纤维菌素沉积的参与.
主要成果:
- PZP细胞赋予AA和EA捐赠者的上皮细胞侵入性.
- 皮质细胞入侵是由AKT激活和PZP细胞中的纤维内素沉积驱动的.
- 阻断AKT激活显著降低了上皮细胞的侵入性.
结论:
- 正常乳腺组织的内在差异,如PZP细胞丰富,与了解乳腺癌预后有关.
- 通过特定的分子通路,PZP细胞在促进乳腺癌细胞入侵方面发挥着至关重要的作用.
- 这些发现有助于了解某些患者队列中更糟糕的乳腺癌预后的分子基础.
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