CAT-S CHO Cell Line High IgG Expression
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Solution Overview
Problem
Current CHO cell lines, such as CHO-S, are limited in achieving high protein expression levels for recombinant polypeptide production in suspension cultures, necessitating an improvement in efficiency for manufacturing clinical-grade recombinant proteins.
Innovation Solution
A new Chinese hamster ovary cell line, CAT-S, is developed and deposited with the European Collection of Cell Cultures, capable of enhanced recombinant polypeptide expression, which includes nucleic acid sequences encoding recombinant polypeptides, and is used in conjunction with a vector for protein production, demonstrating improved yields compared to CHO-S cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CHO-S cell line is used for recombinant polypeptide production, then the cell line is commercially available and suspension-adapted, but the protein expression levels are limited and insufficient for high-efficiency manufacturing
Solution Approach 1:
The patent applies parameter changes by modifying the cell line characteristics through suspension adaptation of CHO-K1 cells. This involves changing the cultivation parameters and cellular properties to achieve higher protein expression levels. The suspension-adapted nature of the cell line represents a parameter change from traditional adherent culture, enabling improved productivity while maintaining reliability for clinical-grade production
Data Source
AI summary
The present invention is related to a Chinese hamster ovary cell line as deposited with the European Collection of Cell Cultures (ECACC) under accession number 10090201; use of the cell line for the production of a recombinant polypeptide; a kit comprising the cell line; and methods for the production of recombinant polypeptide.