对基因表达中的噪声进行查,以确定药物协同作用
Roy D Dar1, Nina N Hosmane2, Michelle R Arkin3
1The Gladstone Institutes, 1650 Owens Street, San Francisco, CA 94158, USA.
概括
科学家们发现了控制基因表达"噪音"的小分子,以从潜伏状态重新激活HIV. 这些化合物为艾滋病毒治愈研究和控制细胞命运提供了新的策略.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 药物发现 药物发现 药物发现
背景情况:
- 基因表达的随机波动会影响细胞命运的决定.
- 艾滋病毒潜伏期是实现治愈的重要障碍.
- 传统的药物选往往忽略了调节表达噪声的化合物.
研究的目的:
- 为了识别调节基因表达噪声的小分子,用于HIV的重新激活.
- 探索噪音调制作为治疗艾滋病毒治疗的新治疗策略.
- 为了研究基因表达噪声在细胞命运决定中的作用.
主要方法:
- 选多样化的生物活性小分子库.
- 量化HIV基因表达波动 (噪声) 和平均表达.
- 评估噪声调节器与转录激活器的协同效应.
- 评估已识别的化合物的疗效和细胞毒性.
主要成果:
- 识别了80多种化合物,可以调节HIV基因表达噪声而不会改变平均表达.
- 与现有组合相比,噪音增强剂显著改善了HIV的活性,降低了细胞毒性.
- 噪音抑制器证明了稳定HIV潜伏时间的能力.
结论:
- 基因表达噪声调制是控制HIV潜伏的可行策略.
- 噪声调节化合物代表了一类新的治疗药物来治疗艾滋病毒.
- 这种方法为药物发现和控制细胞命运决策提供了新的途径.
相关概念视频
Genetic Screens
4.6K
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
4.6K
Pharmacogenomics: Identification of New Drug Targets
119
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
119
Combined Effects of Drugs: Synergism
6.2K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
6.2K
Drug Discovery: Overview
10.3K
Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
10.3K


