iQue®: Cell Phenotyping and Secreted Protein Detection within the Same Well 

Faster time to actionable results.  Turn complex science into meaningful insights, with speed and certainty

Flow cytometry is a powerful technique that identifies defined populations of cells from heterogenous samples such as blood. In a typical experiment, cells are labeled with fluorochrome conjugated antibodies which recognize markers on cells. Labeled single cells are passed through the flow cell where fluorescence is measured by lasers and detectors. Patterns of expression of different markers define the cell phenotype. For example, T-cells are defined by the presence of CD3 antigen within the lymphocyte population. Other markers can be added to identify subpopulations, cell health, activation status, and other parameters.

While flow cytometry is immensely useful for extracting insights from heterogeneous cell samples, there are drawbacks to conventional cytometers that impact time to results. The technique can be quite complex for researchers to integrate into their workflows. Sample preparation can be another rate limiting step, often requiring long protocols and large sample volumes.

Flow cytometry data comprise high-dimensional datasets, requiring precise gate settings to accurately identify specific cell populations, compensation for spectral overlap between fluorochromes, and the application of suitable statistical analysis methods. These tasks typically require expertise, the use of multiple software tools, and several disjointed steps.

The iQue® High-Throughput Screening Cytometry Platform re-imagines the standard flow cytometry workflow through combined innovations in both the platform and software. The result is an equally powerful but intuitive and versatile alternative, designed to offer high-throughput assay capabilities with the ease-of-use, high multiplexing, cost effectiveness and speed desired in modern workflows.

Importantly, the technology is designed to be accessible, empowering every scientist to run an experiment and analyze the data with confidence.

Secretion of cytokines and other biomarkers can also be used to characterize cells. iQue® 3 High-Throughput Screening (HTS) Cytometer can perform bead-based secreted biomarker detection from the same sample in the same well to provide a complete understanding of the biology of your sample. Beads (microspheres) used for biomarker detection contain different levels of fluorescent dye serving as both identification for the biomarker and a surface for the assay.

Obtain results with very low sample volumes down to 1 µL (in a 384-well plate) conserving precious samples and saving money on reagents. 

Whether you are screening thousands of complex samples per day or running a few samples, the iQue® 3 HTS Cytometer features ease of use, fast walk away operation, and real time data analysis to let you focus on the results of your experiments. With up to 15 parameters and three lasers, this platform allows you to gain more information from limited samples. 

The iQue® HTS  platform includes Forecyt® Software, a complete package that enables every step from acquisition to through data interpretation. Several features of Forecyt® like advanced gating and simple dose-response curve generation standardize and simplify data collection and analysis. 

Requiring as little as one microliter of sample with fast and easy acquisition, the iQue® is suitable for a variety of routine and custom assays. Click on the links to see some of our many application examples:


How does it work?

Activation of T-cells leads to several changes including the up-regulation of cell surface markers, cytokine secretion, cell proliferation, and cell death. How can we quickly, objectively and reproducibly quantify this process?

Kits and templated analysis generate data as your cells are analyzed. 

Immunophenotyping and Function using iQue® Immune Cell-Based Kits

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