失去排序Nexin 10加速KRAS诱导的胰腺瘤发生
Kohinoor Khan1, Mohammad Shameem1, Ashley N Sigafoos2
1University of Minnesota, Minneapolis, Minnesota, United States.
Cancer research communications
|August 14, 2025
概括
排序nexin 10 (SNX10) 在胰腺管道腺癌 (PDAC) 中充当瘤抑制剂. 下调SNX10促进KRAS驱动的胰腺癌的进展和攻击性.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症遗传学 癌症遗传学
背景情况:
- 胰腺管道腺癌 (PDAC) 是一种具有很低生存率的高度侵袭性癌症.
- 驱动PDAC发展和进展的机制尚未完全理解.
- 排序nexin 10 (SNX10) 是一种参与细胞内贩运的蛋白质.
研究的目的:
- 研究Sorting nexin 10 (SNX10) 在胰腺癌发生中的作用.
- 为了确定SNX10表达和PDAC进展之间的关系.
- 在PDAC中探索SNX10作为潜在的治疗点.
主要方法:
- 在PDAC组织中分析SNX10表达水平.
- 在PDAC病例中对SNX10的突变分析.
- 在体外研究涉及SNX10在人类PDAC细胞中的过度表达.
- 在体内研究中,使用了新的Snx10淘汰赛小鼠模型与Kras驱动的PDAC模型交叉.
主要成果:
- 在PDAC中,SNX10的下调,特别是在晚期.
- 在PDAC病例中发现了SNX10基因变异.
- SNX10过度表达抑制了PDAC细胞增殖,殖民地形成,并诱导了G1阶段细胞循环停止.
- 过度表达SNX10会降低KRAS信号活动.
- 在Kras驱动的PDAC模型中,Snx10淘汰赛小鼠的生存率降低,瘤扩散增加,侵略性增强和炎症增加.
结论:
- SNX10在调节KRAS诱导的胰腺癌发生方面发挥着重要作用.
- 在PDAC中,SNX10作为瘤抑制剂起作用.
- 在PDAC治疗中,SNX10是新治疗策略的有希望的候选者.
更多相关视频
06:51Utilizing 18F-FDG PET/CT Imaging and Quantitative Histology to Measure Dynamic Changes in the Glucose Metabolism in Mouse Models of Lung Cancer
Published on: July 21, 2018
18.1K
08:21Dissection of the Mouse Pancreas for Histological Analysis and Metabolic Profiling
Published on: August 19, 2017
37.4K
相关概念视频
The Ras Gene
6.4K
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
Ras is a...
6.4K
Small GTPases - Ras and Rho
4.2K
Ras and Rho are small monomeric GTPases that act downstream of receptor tyrosine kinase (RTK) and regulate various cellular processes. These GTPases switch between active and inactive states by binding to guanine nucleotides.
Three regulatory proteins control their activity:
Three regulatory proteins control their activity:
4.2K
mTOR Signaling and Cancer Progression
3.9K
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...
3.9K
Cancer-Critical Genes I: Proto-oncogenes
9.1K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.1K
Tumor Progression
6.5K
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...
6.5K
Loss of Tumor Suppressor Gene Functions
5.1K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
5.1K
