Research and Development

TrueBinding offers a comprehensive range of services for cell line construction and development. We begin with DNA sequence analysis to understand the genetic makeup of the target cell line. Our cloning and transfection techniques enable the introduction of desired genetic material into host cells, creating stable and high-expression cell lines. Through pool selection, we identify and isolate cell pools with the desired traits, followed by cloning and selection of the top three clones based on productivity and stability. Our biosafety testing ensures the absence of microorganisms and viral contamination.

To ensure long-term viability and performance, we conduct cell line stability studies over multiple generations, monitoring growth, productivity, and genetic stability. Additionally, we offer bioreactor clone screening studies to assess the suitability of our cell lines for large-scale production. Our expertise in DNA sequence analysis, cloning, selection, biosafety testing, stability studies, and bioreactor screening enables researchers and biotech companies to develop robust and high-performing cell lines for various applications.

Cell Line Construction and Development

TrueBinding specializes in process and formulation development for mAbs. Our comprehensive capabilities include material generation using a selected top pool at a 20L scale, utilizing platform cell culture and purification processes. We produce materials for analytical testing, formulation development, and preliminary toxicity runs.

Our upstream process development focuses on optimizing the cell culture conditions by fine-tuning the feeding strategy and bioreactor cell culture. We conduct three rounds of optimization at 1-3L scale using 12 bioreactors to achieve high titers while maintaining utmost quality. Our purification process development includes three column purification steps, a virus inactivation step, and a nanofiltration step to ensure the isolation and purification of the antibodies.

To verify the robustness of our developed process, we perform two 5L cell culture runs, which not only serve as process verification steps but also contribute to material generation. In addition, we offer formulation development services where we create optimized formulations for the monoclonal antibodies, ensuring stability and compatibility during clinical use. With our expertise and capabilities, we strive to deliver high-quality monoclonal antibodies for therapeutic applications.

Process and Formulation Development

We offer a range of capabilities for TrueBinding assay transfer, development, and qualification. Our services include seamless assay transfer from the client's development stage, verification of platform assays to ensure reliability and reproducibility, and the development of product-specific assays tailored to meet unique requirements. Our developed assays cover various testing purposes, including in-process testing, Drug Substance release testing, and characterization.

Examples of the assays we provide include Potency assay using Binding ELISA, Bioburden determination, Protein concentration by UV/VIS Spectroscopy, CE-SDS, Size Exclusion HPLC, cIEF, Residual HCP, Residual Protein A, residual DNA, Endotoxin, and WCX-HPLC for charge heterogeneity. These assays enable us to assess binding capacity, determine protein concentration, analyze protein impurities, detect charge heterogeneity, and ensure the removal of host cell-related impurities, residual Protein A, residual DNA, and endotoxins. With our comprehensive capabilities, we ensure accurate and reliable results for our clients' in-process testing, Drug Substance release testing, and characterization needs, while adhering to regulatory guidelines for safety and compliance.

Assay Development, Transfer, and Qualification

  • 15 min to cGMP Facility

  • 15 min to SFO

  • 30 min to Oakland Airport

  • 30 min to Downtown San Francisco

Research and Development is Located in Foster City, CA

 

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