Video Experimental Relacionado
Updated: May 16, 2026
09:34
Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
Multimeros de anticuerpos autoensamblados a través de la conjugación de ácido nucleico peptídico
Stephanie A Kazane1, Jun Y Axup, Chan Hyuk Kim
1Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States.
Journal of the American Chemical Society
|December 6, 2012
Resumen
Este estudio introduce un nuevo método que utiliza aminoácidos no naturales para crear conjugados personalizados de anticuerpo-oligonucleótido. Esto acelera el desarrollo de potentes anticuerpos multispecíficos para la terapia del cáncer.
Área de la Ciencia:
- Bioconjugación Química de la bioconjugación
- La inmunoterapia es una inmunoterapia.
- Ingeniería de anticuerpos Ingeniería de anticuerpos.
Sus antecedentes:
- Los anticuerpos bispecíficos muestran una promesa clínica para la terapia dirigida contra el cáncer.
- La síntesis rápida de formatos de anticuerpos multiespecíficos es necesaria para el descubrimiento de fármacos.
Objetivo del estudio:
- Desarrollar una estrategia versátil para sintetizar conjugados de anticuerpos específicos del sitio.
- Para permitir el rápido ensamblaje de complejos de anticuerpos multispecíficos con arquitectura controlada.
Principales métodos:
- Utilizó aminoácidos no naturales con reactividad ortogonal para la conjugación específica del sitio.
- Conjugados de anticuerpo-oligonucleótido generados que se auto-ensamblan en estructuras multiméricas definidas.
Principales resultados:
- Se crearon con éxito potentes anticuerpos bispecíficos reclutando células T para las células cancerosas Her2 y CD20+.
- Desarrolló fragmentos de anticuerpos multiméricos que demuestran una mayor actividad terapéutica.
- Control demostrado sobre la composición, valencia y geometría de los complejos ensamblados.
Conclusiones:
- Esta estrategia de conjugación y autoensamblaje basada en UAA acelera la creación y evaluación de nuevas terapias de anticuerpos.
- El enfoque facilita el diseño de construcciones de anticuerpos con especificidades y arquitecturas moleculares personalizadas para mejorar la eficacia.
Videos de Conceptos Relacionados
02:41Protein Complex Assembly
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
01:10Antibody Structure
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...
01:25Antibody Structure and Classes
Antibodies, also known as immunoglobulins, are produced by B cells in response to foreign substances, such as bacteria and viruses. These proteins are critical for recognizing and neutralizing these substances, protecting the body from potential harm.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
02:43Peptide Bonds
A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
01:26Antibody Actions
Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...