Assay Services

Meso Scale Discovery Assay Services: MSD-ECL Assays

Selected MSD Multiplex Panels

General Category MSD V-Plex Panel Analytes

Human Cytokine & Chemokine Panels

Cell-Based Assay Services: Cytokine/Chemokine Bioactivity & Antiviral Assays


Cell-based assay tools are key to understanding cellular mechanisms in a biologically relevant context. PBL offers a targeted portfolio of cell-based assay services to provide you with the most relevant information and facilitate advancement of your research.


Whatever your cell-based study needs, PBL will work with you to determine the most suitable assay program to meet your goals. PBL's services team is a trusted partner of midsize and major biotech and pharma companies worldwide.


Additional PBL Assay Services

The PBL team has extensive experience and depth of knowledge in cytokine and interferon-related research, as well as in immunological assay development. With our team-based approach and attention to detail, we provide uncompromising quality from a company you can trust. We strive to communicate effectively with our clients by keeping you informed throughout your project and by facilitating direct and open communication channels with our scientific team. As we can custom tailor our services to meet your specific project needs, contact PBL today to discuss how we may be able to help you!

Simoa Assay Services: Ultra-Sensitive Biomarker Testing

Available Human Simoa Immunoassays:

3-Plex A
TNF-α, IL-6, IL-10
3-Plex B
TNF-α, IL-6, IL-17A
Neurology 3-Plex A
Aβ-40, Aβ-42, Tau
Alpha-Synuclein Assay
Amyloid Beta-40 Assay

EMD Millipore (Singulex) Erenna Assay Services: Ultra-Sensitive Cytokine Testing

Verified Immunoassays (click analyte name for representative data)

Cardiac Troponin I Assay
Granulocyte-Colony Stimulating Factor Assay
GLP-1, active

Antibody Characterization Service


Service Features:

  • SPR-based biophysical characterization of polyclonal and monoclonal antibody affinities (Kd) for antigen

  • Quantification of  Kon and Koff rates for many antibody/antigen pairs underlying their dissociation constants

Cytokine Secretion Assays


Service Features:

  • Accurate measurement of the ability of a sample to induce cytokine expression in and release from cell lines or isolated donor cells

Single Analyte & Multiplex ELISA Services


Service Features:

  • ELISA services to perform cytokine and interferon (IFN) measurement

  • Available in single analyte and customizable multiplex formats

Proliferation & Anti-Proliferation Assays


Service Features:

  • Growth inhibition, growth promotion, and cytotoxicity assay services to evaluate cytokine and other modulator activities

  • Utilizes cell lines sensitive to IFNs or other growth-modulating cytokines


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