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[Immunophenotyping of leukemia: overview]
Insights
Immunophenotyping clarifies leukaemias missed by traditional methods. This technique precisely identifies cell lineages and subtypes, aiding accurate diagnosis and treatment strategies for myeloid and lymphatic leukaemias.
Area of Science:
- Hematology
- Immunology
- Oncology
Context:
- Morphological and cytochemical methods have limitations in classifying certain leukaemias.
- Accurate classification is crucial for effective treatment strategies.
Purpose:
- To demonstrate the diagnostic utility of immunophenotyping in leukaemias.
- To highlight its role in subtyping myeloid and lymphatic leukaemias and characterizing non-Hodgkin lymphomas.
Summary:
- Immunophenotyping accurately diagnoses leukaemias that are difficult to classify using conventional methods.
- It designates neoplastic cells to myeloid or lymphatic lineages.
- Specific myeloid leukaemias (M0, M6, M7), mixed lineage, and undifferentiated leukaemias can be subtyped.
- Non-Hodgkin lymphomas are characterized by B- or T-cell origin, with assessment of their activation or proliferation state.
Impact:
- Refined immunophenotypic subtyping of acute lymphatic leukaemias has driven significant therapeutic advancements.
- This technique improves diagnostic clarity, enabling more targeted and effective patient management.
Abstract:
Leukaemias that cannot be classified properly by morphological/cytochemical parameters may be diagnosed clearly by immunophenotyping. In this way, the neoplastic cells can be designated to either the myeloid or the lymphatic line of blood cells. Furthermore, myeloid leukaemias can be subtyped immunophenotypically in cases of type M0, M6, and M7, leukaemias, as well as in cases of mixed lineage or undifferentiated leukaemias. In patients with non-Hodgkin-lymphomas the cells can be characterized as being of B- or T-cell origin, and their activational or proliferative state can be assessed. Notably with acute lymphatic leukaemias, the prodigious therapeutical progress over the past years must be attributed to the refined definition of subtypes by immunophenotyping.