相关实验视频
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Modeling and Imaging 3-Dimensional Collective Cell Invasion
Published on: December 7, 2011
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乳腺癌的集体入侵需要一个保存的基本上皮质程序
Kevin J Cheung1, Edward Gabrielson2, Zena Werb3
1Departments of Cell Biology and Oncology, Center for Cell Dynamics, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA.
Cell
|December 17, 2013
概括
在乳腺癌中,专门的基底细胞 (K14+) 驱动集体入侵. 针对这些基底侵入性程序可能会限制癌症转移.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 癌症研究 癌症研究
背景情况:
- 癌症通常以凝聚性多细胞单元的形式侵入,这一过程被称为集体入侵.
- 不同癌细胞亚群在推动集体入侵中的具体作用仍然在很大程度上是未知的.
- 了解这些细胞动态对于开发有效的抗转移策略至关重要.
研究的目的:
- 为了确定癌细胞的亚群,负责驱动集体入侵的原发性乳腺瘤.
- 阐明了侵袭性癌细胞领导的基础上的分子机制.
- 探索潜在的治疗点来抑制转移性进展.
主要方法:
- 开发和利用三维 (3D) 有机体测试来模拟集体入侵.
- 对基因表达的分析,特别关注基底上皮质标记物,如细胞克拉丁-14 (K14) 和p63.
- 功能性研究涉及关键基因 (K14,p63) 的淘汰,以评估它们对入侵的影响.
主要成果:
- 乳腺癌的集体入侵是由表达基底表皮基因 (K14,p63) 的专门癌细胞领导的.
- 这种基底侵入性表型在主要的人类乳腺癌亚型中观察到.
- 光线癌细胞在基底上皮基因基因的诱导后,可以在表型上转化为侵入性领导者.
- 击败K14或p63显著抑制了集体入侵,突出了它们的关键作用.
- 表皮亚群之间的异型相互作用对于集体入侵至关重要.
结论:
- 专门的基底癌细胞在癌症的集体入侵中扮演领导角色.
- 基底侵入性程序,以K14和p63表达为特征,是转移的关键驱动因素.
- 准这种基底侵入性计划是限制癌细胞入侵和转移性传播的潜在策略.
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