相关实验视频
Updated: Jul 13, 2025

08:17
A Proximal Culture Method to Study Paracrine Signaling Between Cells
Published on: August 28, 2018
9.5K
在上皮卵巢癌转移中的蛋白质和蛋白质重编程
Mallory I Frederick1, Owen F J Hovey1, Jenica H Kakadia1
1Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.
Molecular & cellular proteomics : MCP
|October 11, 2023
概括
表皮卵巢癌细胞形成球状体,由于减少的紫外线激酶B而阻止细胞循环.球状体中的Rho相关激酶1 (ROCK1) 信号促进转移,其抑制可能会增加EOC的传播.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 表皮卵巢癌 (EOC) 是一种致命的疾病,其特点是异质瘤和频繁的转移.
- 从原发性瘤转移到其他组织的转移是EOC死亡的主要原因.
- 了解EOC转移期间的细胞信号动态对于开发有效的治疗方法至关重要.
研究的目的:
- 通过使用细胞模型,研究细胞信号通路与上皮卵巢癌 (EOC) 转移有关的细胞信号通路.
- 分析球状体形成和再附着过程中的蛋白质和蛋白质变化,这是EOC转移的关键步骤.
- 为了确定抑制EOC转移的新型分子标.
主要方法:
- 利用球形形成和重新粘附的细胞模型来模仿原发性瘤生长,转移性启动和二次瘤形成.
- 进行蛋白质和蛋白质分析,以比较附着细胞,球体和重新附着球体的信号动态.
- 研究了光激酶B和Rho相关激酶1 (ROCK1) 在EOC细胞周期调节和转移期间的细胞骨组织中的作用.
主要成果:
- 球状细胞表现出缺氧和细胞循环停止,与减少的光激酶B丰度和酸化有关.
- 再粘附的细胞显示出与球体的蛋白质相似性,但具有明显的蛋白质变化,表明ROCK1-介导的信号激活.
- 通过球体中的基质化证明的ROCK1信号传递被确定为细胞骨组织和转移行为的关键调节者.
- 使用Y-27632抑制ROCK1,增加了球状体的重新粘附性和改变了球状体密度,表明转移潜力增强.
结论:
- 蛋白质重编程,特别是ROCK1激活,在EOC转移期间的蛋白质变化之前.
- 极光激酶B和ROCK1被确定为表皮卵巢癌细胞转移行为的关键调节者.
- 抑制ROCK1可能会增强EOC的转移潜力,突出显示这种途径在癌症进展中的复杂作用.
相关概念视频
Metastasis
5.6K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.6K
Proteomics
7.4K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.4K
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

