[Immunophenotyping in diagnostic and classification of leukemia].

Area of Science:

• Immunology
• Hematology
• Oncology

Context:

• Cell surface markers are crucial for understanding cell differentiation and maturation.
• Monoclonal antibodies and immunofluorescence microscopy are key tools in cell surface molecule detection.
• Leukemia diagnosis and classification traditionally rely on morphology and cytochemistry.

Purpose:

• To investigate the expression of specific cell surface markers in various leukemia subtypes.
• To evaluate the utility of immunophenotyping for precise leukemia diagnosis and prognosis.

Summary:

• This study examined 74 leukemia patients (11 children, 63 adults) using immunofluorescence and monoclonal antibodies.
• Pre-B acute lymphoblastic leukemia (ALL) commonly expressed CD34, CD10, CD22, CD24, CD19, and DR markers, with CD10 being characteristic of CALLA+ pre-B ALL.
• T leukemias showed CD38, CD2, CD3, CD4, and CD8 expression, while acute myeloid leukemia (AML) displayed CD36, CD13, CD14, CD15, CD11b, and DR markers.
• Surface marker profiles were found to be characteristic of specific leukemia types.

Impact:

• Immunophenotyping enables accurate diagnosis of leukemia subtypes.
• This diagnostic precision facilitates improved prognostic assessment.
• Tailored therapeutic strategies can be selected based on immunophenotypic findings.