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Perspectives

High-Titer CHO Expression of T Cell-Related Proteins
May. 08, 2025
High-Titer CHO Expression of T Cell-Related Proteins

To enhance CAR T therapies, scientists are actively studying TCR signaling and T-cell exhaustion mechanisms to improve CAR T persistence and function. Additionally, there is a growing trend towards developing TCR-CAR hybrids to enhance the effectiveness of T-cell therapies. These advancements require the expression of T cell-related proteins, such as T-cell receptors (TCRs) and peptide-MHC (pMHC) complexes. However, producing functional TCRs and pMHC complexes in sufficient yield, quality, and efficacy remains challenging.

 

Traditional E. coli expression systems often suffer from low protein yields, limited throughput, and endotoxin contamination, limiting their applicability in therapeutic research. In a recent GEN News tutorial, WuXi Biologics’ Protein Sciences team shares how the proprietary T Cell Mate platform enables high-titer CHO expression of T cell-related proteins, including soluble TCRs (sTCRs), TCR fusion proteins, and single-chain trimers (SCTs), while leveraging E. coli-based refolding for pMHC complex production.

 

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