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Routine immunophenotyping of acute leukaemias
H G Drexler1, S M Gignac, J Minowada
1Royal Free Hospital School of Medicine, Academic Department of Haematology, London, UK.
Blut
|December 1, 1988
Summary
Immunophenotyping, using monoclonal antibodies and standardized techniques like flow cytometry, is crucial for diagnosing acute leukemias. It accurately distinguishes subtypes of acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML), aiding prognosis.
Area of Science:
- Hematology
- Immunology
- Oncology
Background:
- Advances in monoclonal antibodies (MAbs) and staining techniques have improved immunophenotyping.
- Immunophenotyping is now an essential tool for diagnosing acute leukemias.
Purpose of the Study:
- To highlight the role of immunophenotyping in the differential diagnosis of acute leukemias.
- To explain how immunophenotyping distinguishes between acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML), and T-cell vs. B-cell ALL.
- To discuss the prognostic significance of immunologically defined subtypes.
Main Methods:
- Utilizing monoclonal antibodies (MAbs) specific to cell lineage and differentiation stages.
- Employing standardized immunofluorescence, immunocytology staining, and flow cytometry procedures.
- Applying discriminatory immunomarker panels for routine diagnostics.
Main Results:
- Immunophenotyping objectively and reproducibly distinguishes ALL from AML and T-lineage from B-lineage ALL.
- Immunologically defined subtypes of ALL and AML have prognostic value.
- Standardized panels provide reliable data for differential diagnosis.
Conclusions:
- Immunophenotyping is a reliable diagnostic instrument for acute leukemia.
- It plays a vital role in multiple-marker analysis for diagnosis and research.
- Precise identification of blast cell origin is crucial for patient management.