在temozolomide治疗时减少真核细胞启动因子的表达 - - 对于eIF在质瘤治疗中的潜在新影响
Stefanie Krassnig1, Stefan L Leber1,2, Andrea Orthmann3
1Diagnostic & Research Center for Molecular BioMedicine, Department of Neuropathology, Institute of Pathology, Medical University of Graz, Graz, Austria.
Journal of neuro-oncology
|November 1, 2023
概括
新的研究表明,真核细胞启动因子 (eIF) 可能是改善质瘤治疗的关键目标. 使用雷戈拉费尼布和特莫索洛米德 (TMZ) 的联合治疗可能会在耐药瘤中恢复eIF通路的功能.
科学领域:
- 神经瘤学神经瘤学
- 癌症生物学 癌症生物学
- 分子医学是分子医学.
背景情况:
- 由于瘤异质性,质瘤治疗仍然具有挑战性.
- 细胞启动因子 (eIFs) 在包括质瘤在内的各种癌症中显示出改变的表达.
研究的目的:
- 研究eIFs作为质瘤新型治疗点的潜力.
- 评估化疗对质瘤eIF表达和调节的影响.
主要方法:
- 在22个质母细胞瘤患者衍生异种移植 (GBM PDX) 中分析eIF蛋白表达.
- 用细胞静止剂治疗后对eIF调节的评估.
- 与GBM PDX突变特征分析相关的评估.
主要成果:
- 泰莫佐洛米德 (TMZ) 治疗导致eIF表达的降低,独立于PI3K/AKT/mTOR通路.
- 这些TMZ效应在耐TMZ的PDX模型中是不存在的.
- 使用雷戈拉费尼布和TMZ的联合治疗恢复了eIF/AKT/mTOR信号轴.
结论:
- 化疗显著影响质瘤中的eIF调节.
- 电子投资基金代表了增强未来质瘤治疗的有希望的目标.
- 对eIF的进一步研究可能会导致改善质瘤的治疗策略.
相关概念视频
02:38Mitogens and the Cell Cycle
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...
02:17The Tumor Microenvironment
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...