VistaPlex Cell Boundaries Assay Kit

For the CellScape platform.

Enabling Precise Single-Cell Segmentation

The Cell Boundaries Assay Kit delivers fluorescently labeled antibodies for cell boundary staining optimized by our robust validation workflow, enabling clear delineation of individual single cells within intact tissue architecture.

By improving segmentation accuracy, the kit ensures each protein signal is correctly assigned to its cell of origin, resulting in cleaner, more reliable data for cell type classification, spatial mapping, and neighborhood analysis. The panel can be expanded by pairing with additional VistaPlex Multiplexing Assay Kits or your markers of choice.

The VistaPlex Cell Boundaries Assay Kit enables automated staining and imaging of 10 human FFPE samples for 4 cell segmentation biomarkers using the CellScape Precise Spatial Proteomics platform. An online protocol is available to guide consistent and reliable execution of the multiplexed assay.

How it Works

The VistaPlex Cell Boundaries Assay Kit enables multiplexed detection and definition of cell boundaries directly in situ to deliver accurate protein assignment and cell type classification across FFPE tissue. Each panel is fully validated for use with EpicIF™ chemistry and the CellScape™ platform, ensuring consistent staining, robust signal removal, and high-quality single-cell proteomic data

Read the VistaPlex™ Cell Boundaries Assay Kit validation report to learn more.

01:

Validated Antibodies

The kit includes 4 validated, fluorescently labeled antibodies to support cell segmentation.

02:

Optimized Protocol

An online protocol is available to guide consistent and reliable execution of the multiplexed assay.

03:

Reliable Performance

Antibodies for the multiplex panel were validated using eight human tonsil FFPE tissue samples to ensure specificity, sensitivity, and reproducibility. Additional FFPE tissue types were validated for broad sample suitability.

04:

Expandable Assays

Expand the Cell Boundaries Assay Kit with modular VistaPlex Assay Kits to build a customized Precise Spatial Proteomics panel. Compatible kits can be run on the same sample, and the CellScape workflow lets you seal, store, and revisit the same slide. Add new biomarkers later to drive data-driven panel expansion and make the most of precious samples.

Reliably Assess the Immune Microenvironment
Intra- and Inter-Site Validation
Qualitative Suitability and Specificity Assessment
Quantitative Reproducibility Assessment
Tissue Type Suitability
Reliably Assess the Immune Microenvironment

A. Full overview of a tonsil sample used in validation testing. The red box indicates the region shown in enlarged images. B. Enlarged images showing kit stains and appropriate counterstains.
Intra- and Inter-Site Validation

Following clone selection and assay design, the multiplex panels are validated for performance by specificity, sensitivity, reproducibility, and suitability measurements. Validation experiments are completed using serial tissue sections from multiple relevant tissues, on different CellScape instruments, in different laboratory sites, and with staining scored by multiple scientists.
Qualitative Suitability and Specificity Assessment
Average scores from technical replicates of human FFPE Tonsil are visualized in a heatmap (A, green=pass, red=fail) and a radar plot (B). n = 8 samples scored by four independent judges.
Quantitative Reproducibility Assessment
Cell density measurements for each stain across three technical replicates of human FFPE tonsil.
Tissue Type Suitability

Validation is performed on human FFPE tonsil as a positive control, as well a multiple fundamental disease states.

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Related Resources

Product Bulletin VistaPlex™ Validation Report – Cell Boundaries Kit
App Note/Tech Note VistaPlex™ Assay Kit Design and Validation Process
Event Building High-Plex Spatial Proteomic Panels – A Simplified, Flexible Workflow Using the CellScape™ Platform
Poster Expandable Immunofluorescence Assays with Next-Generation VistaPlex Immune Profiling Kits