细胞启动因子3b调节乳腺癌的发展和进展
Yanhui Li1, Jianhua Zhao2, Zhikun Yuan3
1Department of Pathology, Shijie Hospital Shijie Town, Dongguan, Guangdong, China.
American journal of cancer research
|June 9, 2023
概括
欧核细胞启动因子3亚单元B (eIF3b) 的升级促进乳腺癌的生长和转移. 沉默eIF3b会抑制瘤的发展和扩散,这表明eIF3b是乳腺癌的潜在治疗点.
科学领域:
- 分子瘤学分子瘤学
- 癌症生物学 癌症生物学
- 基因规则 基因规则
背景情况:
- 乳腺癌瘤发生涉及复杂的基因表达变化.
- 专注于转录调节,但翻译控制也至关重要.
- 细胞启动因子 (eIFs) 的失调与各种癌症有关.
研究的目的:
- 为了调查真核细胞启动因子3B (eIF3b) 在乳腺癌中的作用.
- 确定eIF3b表达和乳腺癌进展之间的关系.
- 探索eIF3b作为治疗点的潜力.
主要方法:
- 在乳腺癌细胞系和组织中检查了eIF3b的表达.
- 与瘤阶段和转移相关的eIF3b水平.
- 进行了体外淘汰和过度表达的研究.
- 使用异种移植小鼠模型进行体内评估.
- 调查了Wnt/β-catenin通路. 这是一个很好的例子.
主要成果:
- 在乳腺癌细胞和组织中,eIF3b被上调,与晚期和淋巴结转移相关.
- eIF3b knockdown 抑制了细胞的增殖,迁移和入侵.
- 过度表达eIF3b增强了这些恶性表型.
- 在体内,eIF3b沉默抑制了瘤生长和肺转移.
- eIF3b下调调节了Wnt/β-catenin通路的调节.
结论:
- eIF3b在乳腺癌瘤发生,扩散,入侵和转移方面发挥着重要作用.
- eIF3b通过调节Wnt/β-catenin通路而起作用.
- eIF3b代表了乳腺癌治疗的潜在治疗标.
更多相关视频
11:13Author Spotlight: Exploring Salidroside's Molecular Mechanisms in Breast Cancer Treatment
Published on: June 9, 2023
1.6K
08:48An In Vitro Dormancy Model of Estrogen-sensitive Breast Cancer in the Bone Marrow: A Tool for Molecular Mechanism Studies and Hypothesis Generation
Published on: June 30, 2015
8.3K
相关概念视频
The Nucleolus
8.9K
The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
8.9K
Initiation of Translation
34.2K
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
34.2K
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
Destabilization of Microtubules
2.8K
The destabilization of microtubules can occur during different stages of the microtubule lifecycle, such as nucleation or elongation. It can take place at either end of the microtubule or in the microtubule lattices as a whole. The lifespan of individual microtubules within a cell varies according to the cell type and stage of the cell cycle. During interphase, the lifespan of the microtubule is about 30 minutes, while during cell division, it is about 15 minutes. In axonal microtubules of...
2.8K
Microtubule Formation
5.8K
Microtubules are dynamic structures that undergo continuous assembly and disassembly. They originate from specialized multi-protein complexes known as microtubule organizing centers or MTOCs. Within the MTOC, the point of origin of the microtubule is known as the minus end, while the end radiating outward is the plus end. Microtubules serve two primary functions — the organization of spindle complexes to separate sister chromatids during mitotic or meiotic cell division and the formation...
5.8K
General Transcription Factors
5.4K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
5.4K
