尤比基特异性蛋白酶5通过稳定Twist1促进膀癌的进展
Hai Cai1,2, Zhi-Bin Ke1,2, Jia-Yin Chen1,2
1Department of Urology, Urology Research Institute, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China.
Oncogene
|January 13, 2024
概括
表皮-介质细胞过渡 (EMT) 途径驱动固体瘤. 这项研究显示,USP5稳定了Twist1蛋白,通过EMT促进了膀癌的进展. 针对USP5可能会提供一种新的癌症治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 异常的上皮层-介质细胞过渡 (EMT) 激活驱动了固体瘤的发展.
- Twist1在膀癌进展中的作用和调控尚不清楚.
- Twist1是调节EMT通路的核心转录因子.
研究的目的:
- 研究Twist1在膀癌进展中的表达模式和调控机制.
- 为了阐明USP5-Twist1轴在膀癌中的作用.
- 探索USP5作为膀癌的潜在治疗点.
主要方法:
- 使用RT-qPCR,西斑和免疫组织化学 (IHC) 来评估Twist1的表达.
- 共同免疫沉 (Co-IP) 和质谱学确定了USP5作为Twist1的结合伙伴.
- 细胞测试和异种移植瘤模型评估了USP5和Twist1.1.的功能影响.
主要成果:
- 在膀癌样本中,Twist1蛋白,而不是mRNA,过度表达.
- USP5与Twist1结合,通过二基酶活性稳定它,并激活EMT.
- 消耗USP5抑制了膀癌细胞的增殖,入侵和EMT;沉默USP5减少了体内瘤的发生.
- 在临床膀癌样本中,USP5和Twist1蛋白水平呈正相关.
结论:
- USP5-Twist1轴代表了一种新的调节机制,推动了膀癌的进展.
- USP5稳定了Twist1蛋白质,促进了EMT,并促进了膀癌的发展.
- 准USP5为膀癌治疗提供了一个有前途的治疗策略.
相关概念视频
Abnormal Proliferation
4.5K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.5K
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
2.7K
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...
2.7K
Canonical Wnt Signaling Pathway
8.8K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.8K
Tumor Progression
6.3K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.3K
Induced Pluripotent Stem Cells
4.1K
Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
Somatic...
4.1K


