Multicolor Flow Cytometry and Panel Design: A Complete Workflow Solution

Multiparameter flow cytometry solutions ranging from Panel design, sample preparation, and surface or intracellular staining, to compensation, acquisition, gating, and statistical analysis.

Experimental Objectives

Analysis of cell phenotype, protein expression, activity, apoptosis, cell cycle, and rare cell populations at the single-cell level, with support for multiparameter phenotyping.

Scope and Experimental Requirements

  • Samples: Cultured cells, blood or bone marrow, single-cell suspensions from digested tissue
  • Requirements: Clear understanding of instrument laser and filter configurations, target antigen abundance, number of colors, and expected target population frequency
  • Time: Typically 4–8 hours; complex Panels require additional titration and optimization
  • Safety: Fresh human or animal samples should be handled according to the corresponding biosafety level

Standard Workflow

  1. Design Panel based on instrument configuration and antigen abundance
  2. Prepare single-cell suspension with high viability and low aggregation
  3. Perform Fc receptor blocking, live/dead staining, and surface staining
  4. Fix and permeabilize as needed, then perform intracellular staining
  5. Prepare unstained, single-stained compensation, and FMO controls
  6. Perform daily instrument QC and compensation or spectral unmixing
  7. Acquire sufficient event counts for low-frequency population analysis
  8. Complete statistical analysis based on pre-registered gating strategies

Equipment, Reagents, and Consumables

  • Equipment: Flow cytometer or cell sorter, biosafety cabinet, centrifuge, cell counter, and analysis software
  • Reagents: Flow cytometry antibody Panel, live/dead stain, Fc blocker, staining buffer, fixation/permeabilization reagents, and compensation beads
  • Consumables: Flow cytometry tubes or filter plates, cell strainers, low-retention centrifuge tubes, and pipette tips

Essential Controls and QC

  • Unstained, single-stained compensation, FMO, live/dead stain, biological positive and negative controls
  • Instrument QC passes; single-cell and live-cell gates are clear; compensation has no obvious under- or over-compensation
  • FMO supports positive threshold; low-frequency populations report actual event counts; gating templates and batches are traceable

Common Issues

Optimize digestion and filter samples when aggregated; titrate antibodies and enhance Fc blocking for high background; check brightness of single-stained controls for abnormal compensation; clean fluidics and re-QC for signal drift.

Product Selection Entry

Research Use Statement: This workflow is for research analysis and not for clinical diagnostic purposes.