相关实验视频
Updated: Feb 10, 2026

11:11
Detection of Rare Mutations in CtDNA Using Next Generation Sequencing
Published on: August 24, 2017
17.4K
抗体介导原始化的分子决定因素,以增强ctDNA的检测
bioRxiv : the preprint server for biology
|February 9, 2026
概括
工程抗体可以增加血液抽取中的循环瘤DNA (ctDNA) 度. 这提高了液体活检的灵敏度,以改善癌症的检测和监测.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 液体活检为癌症检测和监测提供了潜力.
- 循环瘤DNA (ctDNA) 的低度限制了液体活检的敏感性.
- 之前的工作引入了单克隆抗体 (mAb) 起始剂,以提高ctDNA水平.
研究的目的:
- 通过原始化剂调查推动ctDNA增加的分子特征.
- 确定有效的ctDNA丰富策略的设计原则.
- 扩大原始剂策略,超越传统的抗体.
主要方法:
- 选的新型单克隆抗体 (mAbs) 针对无细胞DNA (cfDNA).
- 评估了ctDNA度的变化,以应对各种mAb格式和结合特异性.
- 使用dSDNA结合域 (例如,sso7d) 的工程单链剂.
主要成果:
- 针对双链DNA (dsDNA) 和单核酶体的mAbs增加了ctDNA度.
- 高兴度的dsDNA结合mAbs显示出最好的表现.
- Fc域不是必不可少的;F ((ab)) 2片段保留了活动.
- 工程设计的单链剂证明了原始化能力.
结论:
- dsDNA是ctDNA丰富剂的关键目标.
- 高敏度和特定的结合特征对于原始化剂至关重要.
- 非免疫球蛋白支架可以用于ctDNA丰富.
- 这项工作提供了开发增强液体活检工具的原则.
相关概念视频
Antibody Structure
65.7K
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
65.7K
Bioavailability Enhancement: Determination and Conceptual Approaches in Overcoming Bioavailability Problems
212
Body:Bioavailability is a critical pharmacological concept that measures the extent and rate at which an active drug ingredient or therapeutic moiety enters the systemic circulation, remaining unchanged. It's a pivotal factor in determining a drug's efficacy and safety.The Biopharmaceutics Classification System (BCS) plays an essential role in drug development by categorizing drugs into four classes based on their solubility and permeability. This classification aids in understanding drug...
212
Predicting Molecular Geometry
46.1K
VSEPR Theory for Determination of Electron Pair Geometries
46.1K
Molecular Orbital Theory II
27.6K
Molecular Orbital Energy Diagrams
27.6K
Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy
29.9K
The kinetic molecular theory qualitatively explains the behaviors described by the various gas laws. The postulates of this theory may be applied in a more quantitative fashion to derive these individual laws.
29.9K
Molecular Models
43.8K
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
43.8K

