Common Light Chain Antibody Framework for Multi-Target Specificity
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Solution Overview
Problem
Existing antibody technologies are limited in their flexibility to generate antibodies with different specificities for various targets, as binding specificity is often determined by the CDRs of the VH and VL peptides, restricting their versatility.
Innovation Solution
Development of peptides that can serve as common light chains for antibodies, allowing them to be combined with various heavy chains regardless of the target, thereby enhancing the flexibility in generating antibodies with diverse specificities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If antibodies are designed with traditional VH and VL domains with specific CDRs for each target, then binding specificity is achieved, but flexibility and versatility to generate antibodies for different targets are restricted
Solution Approach 1:
The patent applies universality by developing a common light chain framework that can be paired with multiple different heavy chains to generate antibodies against various targets. The common light chain contains framework regions that are consistent across different antibody specificities, while only the CDR regions need to be varied to achieve different binding specificities. This multi-functional light chain design allows a single light chain sequence to serve multiple antibody configurations for different antigens.
Solution Approach 2:
The patent segments the antibody structure into a universal light chain framework and variable CDR regions. By separating the constant framework portions from the variable binding portions, the invention allows independent optimization and recombination. The common light chain framework provides structural stability and consistent properties, while the CDR regions can be independently designed or selected to target different antigens, simplifying the overall antibody generation process.
2Adaptability or versatility
If a common light chain is used across multiple antibodies, then versatility and flexibility are enhanced, but maintaining consistent binding characteristics across different heavy chains becomes challenging
Solution Approach 1:
The patent applies local quality by differentiating between the roles of different light chain regions. The framework regions are designed to be consistent and universal across all light chains, providing reliable structural support and consistent properties. The CDR regions are designated as the local variable portions that can be optimized for specific binding requirements. This localized differentiation allows the common light chain to maintain reliability through its consistent framework while achieving versatility through its variable CDR regions.
Solution Approach 2:
The common light chain framework serves as a universal component that maintains consistent structural and functional properties across multiple antibody configurations. By establishing a standardized framework with consistent framework regions, the patent ensures reliable binding characteristics are maintained while allowing flexibility in the CDR regions to adapt to different targets.
3Productivity
If traditional antibody generation methods are used with separate VH and VL for each target, then specific binding is achieved, but the process becomes time-consuming and less efficient
Solution Approach 1:
The patent applies preliminary action by pre-designing and validating a common light chain framework that can be universally used across multiple antibody projects. This framework is established in advance with optimized framework regions, eliminating the need to redesign the entire light chain for each new target. When generating antibodies for new targets, only the CDR regions need to be modified, significantly reducing the time and resources required compared to traditional methods where both VH and VL would be designed from scratch for each target.
Solution Approach 2:
The universal common light chain framework enables streamlined antibody generation by serving as a reusable template. This multi-functional framework can be paired with different heavy chains and CDR configurations to rapidly generate antibodies against multiple targets,大幅提高 productivity and reducing the time investment required for each new antibody development project.
Data Source
AI summary
Peptides and uses thereof, such as a common light chain in an antibody, are provided.