在TNBC中开发一种与休眠相关的ECM特征,该特征与免疫抑制瘤微环境和对MAPK抑制剂的选择性敏感性有关
Yang Dong1, Jin Bai2, Jianjun Zhou1
1Research Center for Translational Medicine, Cancer Stem Cell Institute, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200120, China.
Heliyon
|June 13, 2024
概括
三阴性乳腺癌 (TNBC) 中的细胞休眠与特定的细胞外矩阵 (ECM) 特性有关. 准MAPK通路显示出治疗休眠TNBC细胞的前景,可能改善患者的治疗结果.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 细胞外矩阵研究研究
背景情况:
- 细胞休眠是瘤细胞的静止状态,有助于药物耐药性和三阴性乳腺癌 (TNBC) 的复发.
- 休眠的癌细胞表现出独特的细胞外基质 (ECM) 组成,影响它们的行为.
- 休眠细胞及其相关ECM在TNBC中的特定作用仍未得到充分研究.
研究的目的:
- 在TNBC中描述休眠癌细胞相关的ECM (DA-ECM) 签名.
- 研究TNBC患者的DA-ECM特征和瘤生物学之间的关系.
- 为了确定潜在的治疗策略,针对休眠的TNBC细胞.
主要方法:
- 从MDA-MB-231细胞系中使用FACS.对休眠癌细胞进行了分类.
- 进行基因表达分析和通路分析以表征DA-ECM特征.
- 采用了无监督的等级聚类,批量和单细胞RNA-seq集成,配体受体相互作用分析和in silico药物查.
- 实验室试验验证了休眠细胞对MAPK抑制剂的敏感性.
主要成果:
- 休眠的TNBC细胞表达了一组独特的DA-ECM基因 (约10%).
- 确定了一个DA-ECM高亚型,与免疫抑制瘤微环境相关.
- DA-ECM高亚型似乎通过MAPK,刺和Notch信号通路保持休眠状态.
- 休眠癌细胞对MAPK通路抑制剂表现出敏感性.
结论:
- 在TNBC细胞中,休眠相关的ECM具有显著的重塑能力.
- 针对DA-ECM和相关的信号通路,如MAPK,为TNBC提供了一个潜在的治疗策略.
- 开发用于休眠TNBC细胞的治疗方法可以改善患者的治疗结果.
更多相关视频
09:14An In Vitro System to Study Tumor Dormancy and the Switch to Metastatic Growth
Published on: August 11, 2011
15.9K
10:55Analyzing the Communication Between Monocytes and Primary Breast Cancer Cells in an Extracellular Matrix Extract ECME-based Three-dimensional System
Published on: January 8, 2018
11.1K
相关概念视频
The Tumor Microenvironment
6.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.6K
mTOR Signaling and Cancer Progression
3.8K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.8K
