在乳腺癌细胞中对假定的HER2相关表达增强剂Her2-Enhancer1的功能分析
Mahdieh Rojhannezhad1, Bahram M Soltani1, Mohammad Vasei2
1Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
Scientific reports
|November 9, 2023
概括
研究人员使用CRISPR/Cas9来禁用HER2增强剂,减少HER2的表达并增加癌细胞的亡. 这突出了HER2阳性癌症的潜在新治疗点.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- HER2/neu (HER2) 是表皮生长因子受体家族中的一个关键蛋白质,通过基因放大或增加转录与致癌有关.
- 增强剂序列中的遗传和表观遗传变化显著影响基因表达和调节,影响瘤进展等生理和病理过程.
- 直接针对基因组改变提供了一个有前途的治疗策略,可能对健康细胞产生更少的副作用.
研究的目的:
- 通过使用CRISPR/Cas9.9,对特定的HER2增强剂 (Her2-Enhancer1) 进行基因淘汰.
- 研究Her2-Enhancer1对HER2及其相互作用基因的调节作用.
- 评估针对 HER2-阳性癌症中的 Her2-Enhancer1 的治疗潜力.
主要方法:
- 通过CRISPR/Cas9基因编辑,在HER2基因内淘汰Her2-Enhancer1区域.
- 生物信息学分析和实时PCR以确认增强剂表达和评估基因调节.
- 在HER2阳性和阴性乳腺癌细胞中的功能分析,包括西部斑块和亡试验.
主要成果:
- 确认Her2-Enhancer1作为一种调节HER2和相互作用基因的表达增强剂.
- 在编辑的细胞中显示HER2变异和目标基因表达的显著变化.
- 在编辑细胞中观察到亡率的增加和 HER2,GRB7 和 P-AKT 的蛋白质水平的降低.
结论:
- 在HER2和相关基因的表达中,Her2-Enhancer1起着至关重要的调节作用.
- 向Her2-Enhancer1为HER2-阳性癌症提供了一个潜在的新疗法策略.
- 这项研究为开发针对特定癌症类型的基因编辑基因疗法提供了基础.
更多相关视频
11:34Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers
Published on: December 5, 2017
12.6K
13:19Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer
Published on: November 2, 2013
16.6K
相关概念视频
02:38Mitogens 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
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