B and T cell biology
T cells are central to adaptive immunity and play critical roles in autoimmunity, inflammation, immune tolerance, cancer, and host defense. Understanding how T cells activate, differentiate, proliferate, and interact with antigen-presenting cells is key to characterizing therapeutic mechanisms and predicting clinical efficacy.
At Redoxis, we offer a comprehensive suite of in vitro and ex vivo T cell assays, covering phenotype, function, memory, regulatory capacity, and antigen specificity. Assays can be performed using human PBMCs, mouse splenocytes, or purified T cell subsets, and all platforms are fully customizable based on your research needs.
T cell Differentiation assays
Investigating Th1, Th2, Th17, Treg, and hybrid T cell subsets
T cell differentiation assays model how naïve CD4⁺ T cells polarize into defined effector subsets under controlled cytokine environments.
What we measure
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Th1, Th2, Th17, Th22, Th1/Th17, Treg, Th9 differentiation
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Chemokine receptor patterns (CXCR3, CCR4, CCR6, CCR10)
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Transcription factors (T-bet, GATA3, RORγt, FoxP3)
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Cytokine secretion profiles
Readouts
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Multicolor flow cytometry (standardized gating)
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Luminex or ELISA cytokine quantification
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qPCR for lineage-associated genes
Applications
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Mechanism-of-action in autoimmune diseases
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Evaluation of biologics and small molecules
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T cell–directed immunomodulation
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Treg/Th17 balance studies
T cell Polarisation assays
Generating and characterizing inducible regulatory T cells
Regulatory T cells (Tregs) are essential for immune tolerance and controlling inflammation. This assay evaluates a compound’s ability to promote or inhibit Treg generation.
What we measure
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FoxP3 expression
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IL-10 and TGF-β secretion
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Treg-associated surface markers
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Stability of induced Tregs
Applications
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Tolerance induction therapies
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Autoimmunity research
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Inflammation control mechanisms
T cell Suppression assay
Functional assessment of Treg-mediated immune regulation
This assay quantifies the ability of Tregs to suppress effector T cell proliferation and cytokine secretion.
What we measure
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Suppression of CD4⁺ or CD8⁺ Teff proliferation
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Reduction in pro-inflammatory cytokines
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Treg:Teff ratio-dependent suppression curves
Readouts
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CellTrace™ dilution (proliferation index)
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IFN-γ, IL-2, TNF-α secretion
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Flow cytometry for activation markers
Applications
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Drug effects on immune regulation
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Autoimmunity and transplantation
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Functional potency of Treg-inducing compounds
Mixed Lymphocyte Reaction (MLR)
Alloreactivity and T cell activation in a physiologically relevant system
MLR assays model how T cells respond to foreign antigens presented by allogeneic dendritic cells or monocytes.
What we measure
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Alloreactive T cell proliferation
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Cytokine production (IFN-γ, IL-17, IL-2)
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Immune suppression or activation by candidate therapeutics
Applications
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Transplantation and graft rejection modeling
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Immunomodulatory screening
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Mixed-population immune activation analysis
Recall Assays
Antigen-specific memory T cell responses
Recall assays evaluate how memory T cells respond when re-exposed to a known antigen.
What we measure
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Antigen-specific T cell proliferation
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Activation marker expression
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Effector cytokine production
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Memory subset profiles
Antigens
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Viral antigens (CMV, EBV, influenza)
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Autoantigens (project-specific)
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Tumor antigens (upon request)
Applications
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Vaccine evaluation
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Chronic inflammation research
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Monitoring long-term immune responses
T cell Activation Assays
Immediate activation signatures and functional potency
Activation assays measure early and intermediate activation markers following stimulation.
Markers measured
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CD69, CD25, CD71
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PD-1, ICOS, CTLA-4 (optional)
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Cytokine release and proliferation
Applications
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Mechanism-of-action profiling
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Immunotherapy and checkpoint inhibitor evaluation
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Early T cell activation dynamics
T cell Phenotyping Panels
Comprehensive multiparameter immunophenotyping
Using standardized and customizable flow cytometry panels, we analyze:
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CD4⁺ and CD8⁺ T cell subsets
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Memory populations (naïve, central memory, effector memory, TEMRA)
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Helper subsets (Th1, Th2, Th17, Th22, Th1/Th17, etc.)
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Regulatory T cells (FoxP3⁺CD25⁺CD127low)
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Activation/exhaustion markers
Applications
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Deep immune profiling
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Translational biomarker discovery
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Integration with in vivo or clinical samples
Technologies Used
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Multicolor flow cytometry
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Luminex & ELISA for cytokine profiling
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CellTraceâ„¢ for proliferation
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FluoroSpot / ELISpot for single-cell cytokine readouts
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qPCR/ddPCR for transcriptional analysis
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Human and mouse systems
Applications Across Drug Development
T cell biology assays support:
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Autoimmunity and chronic inflammation
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Oncology and immunotherapy (checkpoint inhibitors, bispecifics, cell therapies)
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Vaccine and adjuvant evaluation
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Target validation and mechanism-of-action
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Tolerance and regulatory biology research
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Antigen-specific immune monitoring
Why Use B and T Cell Biology Assays at Redoxis?
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Broad expertise in B and T cell immunology across diseases
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Standardized and customizable assay formats
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Integration with molecular and functional readouts
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Reproducible results from experienced in vitro scientists
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Deep understanding of translational immunology
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Strong foundation in autoimmune and inflammatory models
