对于乳腺癌骨转移的入侵/化疗和扩散芯片模型
Burcu Firatligil-Yildirir1,2, Gizem Bati-Ayaz3, Nonappa2
1Department of Molecular Biology and Genetics, Izmir Institute of Technology, Izmir, Turkiye.
PloS one
|October 17, 2024
概括
这项研究引入了新的微流体芯片来建模骨微环境,从而更好地检测乳腺癌细胞入侵和转移. 这些模型与体内潜力相关,有助于预测骨转移风险.
科学领域:
- 生物医学工程 生物医学工程
- 癌症生物学 癌症生物学
- 生物材料科学 生物材料科学
背景情况:
- 由于治疗选择有限,乳腺癌骨转移的结果不佳.
- 早期检测和更好的预后工具对于改善患者存活率至关重要.
- 目前的模型不能完全复制复杂的骨微环境.
研究的目的:
- 开发新的微流体平台,模拟骨微环境,用于研究乳腺癌转移.
- 调查矩阵组成和度在乳腺癌细胞入侵中的作用.
- 为预测骨转移风险建立临床前工具.
主要方法:
- 开发入侵/化疗 (IC) 和扩散 (EX) 芯片.
- 培养乳腺癌细胞 (MDA-MB-231) 与骨细胞 (骨质母细胞,筋细胞,单细胞) 在3D原I矩阵中.
- 在现场无接触的风湿学测量以评估矩阵刚度的变化.
- 细胞行为在体外与体内转移潜力的相关性.
主要成果:
- 乳腺癌细胞在IC和EX芯片上的行为与其体内转移潜力相关.
- 原I矩阵提供了合适的骨类环境.
- 矩阵的组成和刚度显著调节了癌细胞入侵.
- 细胞的存在在五天内增加了矩阵刚度高达1200Pa,影响了侵入性.
结论:
- 开发的微流体平台有效地模拟了乳腺癌的骨转移.
- 由细胞组成调节的矩阵力学在癌细胞入侵中起着关键作用.
- 这些平台为研究转移机制和开发骨转移风险预测工具提供了基础.
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