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CRO Services

Drug Development Expertise Empowering Research Services for Biologics

WuXian Express™


Our WuXian Express™ platform leverages a CHO stable pool expression system engineered for cost-effectiveness and efficiency, delivering purified proteins within 4-7 weeks from gene synthesis. This accelerated timeline is achieved through a meticulously optimized process, beginning with gene synthesis and plasmid construction in the first week. The process then advances to plasmid transfection and stable pool generation within two to three weeks, followed by protein expression over the next two weeks, and concludes with purification and quality control (QC) in the final two weeks.

WuXian Express™: Stable pool protein expression system that can rapidly produce large quantities of proteins for early-stage drug discovery in just 4 to 7 weeks.

Similar to the WuXian Transient™ platform, the WuXian Express™ utilizes the same parental CHO mammalian cell culture system, ensuring the same quality of research molecules. The WuXian Express™ platform offers high comparability with less than 10% pool-to-pool titer variation, and supports flexible scaling options from 20 mL to 100 L, achieving titers exceeding 2 mg/mL. This platform is a robust foundation, representing stable cell line conditions to support further CMC development.

Case Study #1: WuXian Express™ Delivers High-Titer Expression for Different Antibody and Protein Formats

This case study demonstrates the application of the WuXian Express™ platform for the evaluation antibody and protein production, with all candidates achieving high titers and yields.

Case study showing the WuXian Express™ platform for evaluating antibody and protein production, with all candidates achieving high titers and yields.

 

Figure A: The platform efficiently expressed multiple antibody and protein formats, achieving average titers of 2.8 g/L for hIgG1/4, 2.1 g/L for mIgG2a/2b, 2.4 g/L for bispecific antibodies, and 2.7 g/L for fusion proteins.

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