T Cell Culture Surface Coating for Expansion and Functionality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for culturing T cells in-vitro for immune therapies face challenges in replicating complex immune responses and achieving large-scale expansion while maintaining functionality, particularly in mimicking the natural immune niches where T cell activation occurs.
Innovation Solution
Culturing T cells in the presence of immobilized CCL21 and ICAM1, along with the addition of IL-6, to enhance expansion and maintain functionality, which mimics the natural immune niches and promotes specific T cell stimulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional T cell culturing methods are used, then T cells can be expanded in-vitro, but the functionality and killing efficiency are not maintained
Solution Approach 1:
The patent changes the physical and chemical parameters of the culture surface by coating with specific molecules (ICAM-1, CCL21, collagen IV) at controlled densities and configurations. This creates an artificial immune niche that mimics in-vivo conditions, enabling T cell expansion while preserving functionality and killing efficiency against target cells
Solution Approach 2:
The patent introduces artificial immune niche components (ICAM-1, CCL21, collagen IV coatings) as intermediaries between the culture surface and T cells. These molecules mediate cell adhesion, chemotaxis, and activation signals, reproducing the complex interactions that occur in natural immune niches and maintaining T cell functionality during expansion
2Ease of manufacture
If simple culture surfaces are used, then culturing is easy, but T cell proliferation and functionality are not enhanced
Solution Approach 1:
The patent modifies the culture surface parameters by coating with extracellular matrix components and chemokines at optimized concentrations and patterns. This creates a biologically active surface that enhances T cell proliferation and functionality while maintaining a relatively simple culturing protocol that can be implemented in standard cell culture facilities
3Reliability
If natural immune niches are mimicked completely, then T cell activation is accurate, but the device complexity increases
Solution Approach 1:
The patent extracts and reproduces only the essential components of natural immune niches that are critical for T cell activation and maintenance. By selecting key molecules (ICAM-1 for adhesion, CCL21 for chemotaxis, collagen IV for structural support) and reproducing their spatial and functional organization on a culture surface, the patent achieves accurate T cell activation without replicating the entire complexity of in-vivo immune niches
Data Source
Figure 1A~1F
Figure 1G~1P
Figure 1Q
AI summary
Methods of culturing T cells are provided. Accordingly there is provided a method of culturing T cells comprising culturing T cells in the presence of a T cell stimulator, an exogenous CCL21 and an exogenous ICAM1, thereby culturing the T cells. Also provided are cell cultures, isolated T cells and uses of same.