26 November 2025

ELISpot: High Sensitivity Single-Cell Immune Monitoring

Find out how ELISpot works, why it outperforms ELISA when single-cell resolution matters and how Bio-Connect‘s suppliers equip you with the tools needed for rigorous immune monitoring in research and clinical settings.


Why ELISpot Matters: Single-Cell Resolution

For applications where bulk cytokine or antibody levels are insufficient, ELISpot provides the necessary single‑cell functional resolution. Whereas ELISA reports total analyte concentration, ELISpot quantifies the number of cells actively secreting a defined protein, making it particularly powerful for dissecting antigen‑specific responses, rare effector populations and functional T and B cell immunity.

How ELISpot Works: Technology & Sensitivity

The ELISpot assay is an extremely sensitive immunoassay in 96‑well format that detects secreted proteins captured on a membrane and visualized as discrete spots, each corresponding to one secreting cell. With the capacity to detect approximately one antigen‑specific cell in a million, ELISpot is ideally suited for monitoring low‑frequency T and B cell responses in infection, cancer, autoimmunity and allergy, as well as vaccine and cell therapy programs.

Applications in Research & Clinical Practice

The technique is robust and operationally straightforward, supporting high‑throughput immune monitoring across many samples and timepoints in clinical trials. In vaccine research, ELISpot has emerged as a gold standard for evaluating cellular immunogenicity by quantifying IFN‑γ and other cytokine‑secreting T cells. B cell ELISpot further enables direct measurement of antigen‑specific antibody‑secreting cells.

Key ELISpot suppliers

Bio‑Connect supports ELISpot users with a focused portfolio from expert suppliers:

SupplierDescriptionWebshop
MabtechELISpot and FluoroSpot kits plus the IRIS 2 reader for automated, high-content spot analysisMabtech ELISpot products
Assay GenieHigh-sensitivity ELISpot kits to visualize immune responses at the single-cell levelAssay Genie ELISpot products
U-CyTech biosciencesDutch ELISpot and ELISA assays for human and multiple animal species, including cytokine-focused panelsU-CyTech ELISpot products

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ELISpot: High Sensitivity Single-Cell Immune Monitoring

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