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Consensus protocol for the flow cytometric immunophenotyping of hematopoietic malignancies. Working Group on Flow
Insights
Flow cytometry is crucial for diagnosing acute leukemias and lymphomas by analyzing malignant cells. Standardizing flow cytometry protocols ensures reliable results across laboratories for better quality assurance and future technologies.
Area of Science:
- Hematology
- Immunology
- Clinical Pathology
Background:
- Flow cytometry is the gold standard for lineage assignment and maturational analysis in hematological malignancies.
- Multiparametric immunophenotyping aids in detecting aberrant antigen coexpression, heterogeneity, and clonality in leukemias and lymphomas.
Framework:
- Standardization of flow cytometry protocols is essential for interlaboratory reproducibility in clinical settings.
- A consensus protocol initiative aims to establish standardized methods for phenotyping hematological neoplasias.
Implementation:
- Recommendations cover general assay procedures, quality control, and specific two-color reagent panel selection.
- Guidance is provided for data interpretation to enable cross-evaluation of laboratory protocols.
Implications:
- Standardized protocols will form the basis for quality assurance in flow cytometry analysis.
- This initiative supports the integration of emerging technologies like quantitative antigen density analysis and automated knowledge-based software.
Abstract:
Flow cytometry has become the preferred method for the lineage assignment and maturational analysis of malignant cells in acute leukemias and lymphomas. Multiparametric immunophenotyping allows the detection of aberrant antigen coexpression and the analysis of heterogeneity and clonality of malignant cells in leukemias and lymphomas. The complexity of multiparameter analysis techniques and the multitude of available monoclonal antibodies demand a standardization of protocols for the use of flow cytometry in clinical laboratories in order to achieve interlaboratory reproducibility. Therefore, the Working Group on Flow Cytometry and Image Analysis has started an initiative in order to establish a consensus protocol on the current methods of the phenotyping of hematological neoplasias as a basis for quality assurance and support for upcoming technologies such as quantitative analysis of antigen densities and automated knowledge-based analysis software. In addition to general recommendations on assay procedures and quality control specific recommendations are given for the selection of two-color reagent panels and data interpretation in an attempt to define a basis for cross-evaluation against the different currently established laboratory protocols.
