消去双素Dp71f的替代C终端变异会增加肉瘤瘤细胞的攻击性
Nancy Alnassar1, Jacek Hajto2, Robin M H Rumney1
1School of Pharmacy and Biomedical Sciences, University of Portsmouth, White Swan Road, Portsmouth PO1 2DT, United Kingdom.
Human molecular genetics
|June 8, 2024
概括
丢失的Dp71f消毒素变体显著改变了肉瘤细胞基因表达,提高了生存率和治疗耐药性. 这突出了Dp71ff的意义.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 遗传学 是一个遗传学.
背景情况:
- Dp71,一个无处不在的基因异型,在癌症中具有双重作用,既起瘤抑制作用,又起瘤基因作用.
- 这种二元性可能源于两个Dp71拼接变体具有不同的C末端,使功能研究复杂化.
- 了解这些变异对于破译DP71在恶性瘤中的复杂作用至关重要.
研究的目的:
- 调查DP71f拼接变体在肉瘤中的特定作用.
- 用CRISPR/Cas9技术来描述Dp71f切除的分子和功能后果.
- 探索DP71f作为癌症治疗中的潜在治疗标.
主要方法:
- 在CRISPR/Cas9基因编辑中,在肉瘤细胞系中切除Dp71f变异.
- 用于转录基因分析的RNA测序 (RNAseq).
- 基因组规模的代谢分析和功能分析 (细胞粘附,增殖,生存,迁移,入侵).
主要成果:
- Dp71f 的切除导致了显著的转录基因变化,影响了信号传递和ECM受体相互作用.
- 代谢分析显示,葡萄糖运输和糖解的下调.
- 功能性结局包括增加的反应,细胞粘附,增殖,血清独立存活率和化疗耐药性,与不变的迁移/入侵.
结论:
- 双素转录的替代拼接,特别是DP71f变体,在调节细胞过程中起着至关重要的作用.
- Dp71f功能的丧失促进了瘤细胞的存活率和治疗耐药性.
- Dp71f是未来癌症生理学和治疗研究的一个有希望的目标.
更多相关视频
10:28Direct Reprogramming of Human Fibroblasts into Myoblasts to Investigate Therapies for Neuromuscular Disorders
Published on: April 3, 2021
6.2K
09:37Defining Gene Functions in Tumorigenesis by Ex vivo Ablation of Floxed Alleles in Malignant Peripheral Nerve Sheath Tumor Cells
Published on: August 25, 2021
1.8K
相关概念视频
02:23Abnormal 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
01:21Satellite Stem Cells and Muscular Dystrophy
2.0K
Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...
2.0K