核酸阿普塔默可以防止 (Pb) 的毒性
Afreen Anwar1,2, Solimar Ramis De Ayreflor Reyes1, Aijaz Ahmad John3
1Department of Biology and Biotechnology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA.
bioRxiv : the preprint server for biology
|April 8, 2024
概括
在模型生物和人体细胞中,DNA和RNA胺体保护于毒性. 这些体提供了一个有希望的策略,以减轻环境暴露引起的健康问题.
科学领域:
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
- 分子生物学分子生物学
背景情况:
- (Pb(II)) 是一种广泛存在的环境毒素,通过累积暴露导致人类健康问题.
- 制定预防策略以防止生物积累对于减少与相关的疾病至关重要.
研究的目的:
- 研究DNA和RNA体的潜力,作为防毒性的保护策略.
- 在模型生物和人体细胞中评估阿普坦在预防诱导的有毒表型方面的疗效.
主要方法:
- *C. elegans*与DNA或RNA体的同时养.
- 使用繁殖大小测定来评估生殖毒性.
- 评估诱导的行为异常.
- 人类HEK293细胞和小鼠骨质母细胞的转移与DNA体.
- 测量转染细胞中的骨质发育.
主要成果:
- DNA和RNA体显著保护了*C. elegans*免受毒性的影响.
- 与Aptamer联合养预防了生殖毒性,并使诱导的行为异常正常化.
- 用DNA吸附体的传染保护了人类和小鼠细胞免受毒性的影响.
- 在暴露于的细胞中,DNA吸收剂维持了骨质发育.
结论:
- 在不同的生物模型中,DNA和RNA体证明了保护不同生物模型对毒性的有效性.
- 胺剂代表了一种潜在的治疗策略,用于保护人类健康免受等环境重金属毒素的影响.
相关概念视频
Masking and Demasking Agents
2.4K
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
2.4K
Extraction: Advanced Methods
446
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
446


