T & B Cell based Biological Activity Assay Service

T and B lymphocytes are the principal components of the host immune system. Creative Biolabs leverages its outstanding expertise and rich experience to assess the immune effects of cancer epitopes. We've developed a comprehensive panel of assays specifically designed to screen the biological activity of T and B cells in response to these epitopes. This service provides crucial, actionable data on the specific immune response, significantly accelerating the identification and validation of novel, effective epitopes for next-generation cancer immunotherapies and vaccine development.

Background What We Can Offer Why Choose Us FAQs Customer Review Related Services Contact Us

The Critical Role of T and B Cell-Based Assays in Modern Drug Development

T and B cell-based biological activity assays are foundational to understanding the immune response and evaluating the efficacy of immunomodulatory drugs. These assays directly measure the functional capabilities of T and B lymphocytes, providing a quantitative readout of a drug's potency. As referenced in numerous peer-reviewed publications, these methods are crucial for assessing everything from vaccine immunogenicity to the safety of novel biologics. Their role in drug development is well-established, offering a critical bridge between in vitro activity and in vivo efficacy.

Fig.1 T and B lymphocytes in anti-tumor defense. (OA Literature) Fig.1 The roles of adaptive T cells and B cells in anti-tumor immunity. ¹

T and B Cell Biological Activity Assays at Creative Biolabs

T Cell Biological Activity Assays	B Cell Biological Activity Assays
T Cell Proliferation Assays We accurately quantify T cell division using methods like CFSE, BrdU, and ³H-thymidine incorporation. These are crucial for assessing the immunogenicity of therapeutic proteins and the efficacy of T cell-engaging antibodies. T Cell Activation and Cytokine Release Assays We use multicolor flow cytometry to detect early activation markers like CD69 and CD25. This is coupled with measuring cytokines (IFN-γ, IL-2, TNF-α) using ELISA, providing insights into the T cell response. Cytotoxicity and Degranulation Assays We evaluate the killing potential of cytotoxic T lymphocytes (CTLs) using the ⁵¹Cr release assay or the LDH release assay. We also quantify lytic granule release by measuring CD107a (LAMP-1) expression via flow cytometry, a direct marker of degranulation.	B Cell Proliferation and Activation Assays We use flow cytometry with specific B cell markers to monitor activation and proliferation, crucial for evaluating vaccine antigens and B cell-targeting therapeutics. Antibody Production Assays Utilizing high-sensitivity ELISA, we quantify total antibody titer or specific antibody concentration, providing a direct readout of humoral immunity essential for vaccine development and long-term immunity monitoring. Neutralization and Hemagglutination Inhibition Assays These critical assays assess the functional capacity of antibodies. Neutralization assays measure inhibition of viral infection or toxin activity, while hemagglutination inhibition assays evaluate an antibody's ability to block viral binding to red blood cells, offering deeper functional insights.

T Cell Biological Activity Assays

B Cell Biological Activity Assays

T Cell Proliferation Assays
We accurately quantify T cell division using methods like CFSE, BrdU, and ³H-thymidine incorporation. These are crucial for assessing the immunogenicity of therapeutic proteins and the efficacy of T cell-engaging antibodies.
T Cell Activation and Cytokine Release Assays
We use multicolor flow cytometry to detect early activation markers like CD69 and CD25. This is coupled with measuring cytokines (IFN-γ, IL-2, TNF-α) using ELISA, providing insights into the T cell response.
Cytotoxicity and Degranulation Assays
We evaluate the killing potential of cytotoxic T lymphocytes (CTLs) using the ⁵¹Cr release assay or the LDH release assay. We also quantify lytic granule release by measuring CD107a (LAMP-1) expression via flow cytometry, a direct marker of degranulation.

B Cell Proliferation and Activation Assays
We use flow cytometry with specific B cell markers to monitor activation and proliferation, crucial for evaluating vaccine antigens and B cell-targeting therapeutics.
Antibody Production Assays
Utilizing high-sensitivity ELISA, we quantify total antibody titer or specific antibody concentration, providing a direct readout of humoral immunity essential for vaccine development and long-term immunity monitoring.
Neutralization and Hemagglutination Inhibition Assays
These critical assays assess the functional capacity of antibodies. Neutralization assays measure inhibition of viral infection or toxin activity, while hemagglutination inhibition assays evaluate an antibody's ability to block viral binding to red blood cells, offering deeper functional insights.

To learn more about how our T and B cell-based biological activity assays can advance your research, please contact us today for a free consultation.

Why Choose Us?

Choosing Creative Biolabs for your T and B cell-based assays provides you with a distinct advantage, combining unparalleled scientific expertise with cutting-edge technology and a proven track record of success. Our services are fully customizable, allowing us to adapt to your unique project requirements, whether you're working with a novel small molecule or a complex bispecific antibody. Our rigorous quality control standards ensure that every data point is reliable and reproducible, giving you confidence in your research and development decisions. We are a trusted partner in the biopharmaceutical industry, providing the critical data needed for regulatory filings and a deeper understanding of your drug's biological activity.

Experience the Creative Biolabs Advantage - Get a Quote Today.

FAQs

Q1: How do you handle different cell types for T and B cell assays?

A1: We have extensive experience working with a wide range of cell sources, including primary PBMCs, isolated T and B cells, and various cell lines. Our platform is flexible and can be customized to your specific needs, ensuring the model is relevant to your therapeutic area.

Q2: What is the benefit of a high-content screening (HCS) approach for these assays?

A2: HCS provides a multi-dimensional view of cellular activity by simultaneously measuring multiple parameters like cell morphology, protein localization, and cell counts. This allows us to uncover complex biological effects and provides a more holistic understanding of your drug's mechanism of action.

Q3: What precautions are taken to ensure the quality and reproducibility of your assay data?

A3: We implement strict quality control measures, including using validated reagents, running appropriate controls, and following standardized procedures. All our assays are validated for accuracy, precision, and linearity to ensure you receive reliable, high-quality data.

Customer Review

Accelerating Vaccine Development
Using Creative Biolabs' T and B cell-based assays in our research has significantly improved the efficiency of our vaccine development. The comprehensive data and expert support allowed us to confidently select the most potent vaccine candidates for further study. - P***e D
Solving In-House Assay Challenges
We faced major challenges with our in-house proliferation assays. Using Creative Biolabs' services not only provided us with high-quality, reproducible data but also helped us troubleshoot our own protocols based on their expert recommendations. - M***e K

Related Services

Creative Biolabs offers a suite of complementary services to support your entire drug development journey. Beyond our biological activity assays, you may also be interested in our:

B Cell-based Immunoprecipitation Assay

Creative Biolabs offers antibody-mediated immunoprecipitation services for cancer epitope analysis. This powerful method helps identify interacting proteins and analyze antibody-antigen epitope binding interactions within an antigen.

Learn More →

Immunogenicity Assessment of Candidate Neoantigens

Creative Biolabs offers a comprehensive neoantigen immunogenicity assessment. Our platform leverages industry-leading technology to evaluate how neoantigens, derived from tumor genomic alterations, elicit antitumor immune responses, ensuring good therapeutic outcomes.

Learn More →

Contact Us

At Creative Biolabs, we are committed to providing you with the highest quality T and B cell-based biological activity assays to help you achieve your research goals. Our team of experts is ready to discuss your project and provide a customized solution.

Contact Our Team for More Information and to Discuss Your Project

Reference

Briquez, Priscilla S., et al. "Engineering targeting materials for therapeutic cancer vaccines." Frontiers in bioengineering and biotechnology 8 (2020): 19. Distributed under Open Access license CC BY 4.0, without modification. https://doi.org/10.3389/fbioe.2020.00019

Download our brochure

Loading case studies...

Online Inquiry