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癌细胞的生物力学特性伴随着Tspan8-依赖性皮肤黑色素瘤的入侵
Gaël Runel1,2, Noémie Lopez-Ramirez1, Laetitia Barbollat-Boutrand1
1Cancer Research Center of Lyon, CNRS UMR5286, Inserm U1052, University of Lyon, University Lyon 1, 69000 Lyon, France.
Cancers
|February 24, 2024
概括
减少癌细胞刚度可以提高黑色素瘤的侵袭性. 降低度,与上皮转移到介质酶转移 (EMT) 相关,预测黑色素瘤的发展和传播.
科学领域:
- 生物物理学的生物物理.
- 癌症生物学 癌症生物学
- 细胞力学 细胞力学
背景情况:
- 癌细胞的生物力学特性,特别是它们的硬性,尚未得到充分理解.
- 研究细胞硬度对于理解癌细胞入侵和进展至关重要.
研究的目的:
- 为了确定黑色素瘤细胞度的变化是否会影响它们的入侵潜力.
- 为了将细胞刚性与与上皮细胞转化为介质细胞转化 (EMT) 相关的形态和分子变化相关联.
主要方法:
- 原子力显微镜 (AFM) 用于在体外和体内测量细胞刚度.
- 实验涉及黑色素瘤细胞系,人体皮肤结构和梅达卡鱼模型.
- 进行基因表达分析,包括ZEB1过度表达以诱导EMT.
主要成果:
- 减少黑色素瘤细胞刚度与不同模型的侵入性增加相关.
- 刚度调节与表观变化有关,这些变化表明了介质细胞特征.
- 由ZEB1诱导的EMT降低了细胞刚性,并促进了四氨-8介导的入侵.
- 在人类黑色素瘤病变中,ZEB1和Tspan8表达与相关.
结论:
- 内在细胞硬度是黑色素瘤细胞入侵的一个重要因素.
- 细胞硬度降低与EMT相关,在黑色素瘤中增强了侵入性.
- 细胞硬度可以作为人类皮肤黑色素瘤进展的相关生物标志物.
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