卡米尔1通过通过TRIM27/p53轴激活ERK/mTOR通路来调节肝癌细胞的增殖
Yuzhen Ge1, Benli Xiao2, Rui Zhao3
1Department of Prdiatric Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, PR China.
International immunopharmacology
|May 13, 2024
概括
封闭蛋白调节因子和肌肉蛋白1链接因子1 (CARMIL1) 通过调节TRIM27/p53轴和ERK/mTOR通路,促进肝癌细胞的增殖. 抑制CARMIL1可以提高肝癌治疗中索拉芬尼的敏感性.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 封闭蛋白调节因子和肌肉蛋白1链接因子1 (CARMIL1) 在细胞过程中起作用,但其在肝癌中的功能仍未得到充分研究.
- 卡米尔1与行为动态和细胞投射有关,这表明它可能在癌症进展中发挥作用.
研究的目的:
- 研究CARMIL1在肝癌细胞增殖中的新功能.
- 阐明CARMIL1影响肝癌生长的分子机制.
- 为了评估向CARMIL1与sorafenib结合的治疗潜力.
主要方法:
- 细胞计数套件-8,5-乙烯基-2'-脱氧氨酸和A组分测试用于增殖评估.
- 在癌症基因组图谱计划数据中分析CARMIL1表达的分析.
- 西方涂抹和共同免疫沉以研究蛋白质相互作用和通路激活 (ERK,mTOR,TRIM27,p53).
- 在体内研究使用小鼠皮下瘤形成模型.
主要成果:
- 在体外和体内,CARMIL1显著促进肝癌细胞的增殖.
- 卡米尔1调节细胞外信号调节激酶 (ERK) 和哺乳动物目标的拉巴胺素 (mTOR) 途径活性.
- 卡米尔1与三方基因 (TRIM) 27相互作用,促进p53降解,从而增强癌细胞的增殖.
- 降低CARMIL1的调节会增加肝癌细胞对索拉费尼布的敏感性,在组合治疗中显著抑制瘤生长.
结论:
- 卡米尔1是通过TRIM27/p53轴和ERK/mTOR通路激活的肝癌细胞增殖的关键驱动因素.
- 向CARMIL1代表了一种潜在的治疗策略,以提高索拉费尼布在肝细胞癌治疗中的疗效.
相关概念视频
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
PI3K/mTOR/AKT Signaling Pathway
3.5K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.5K
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
Interactions Between Signaling Pathways
6.3K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.3K
Mitogens and the Cell Cycle
6.5K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.5K
Negative Regulator Molecules
35.3K
Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
35.3K


