Frequency Of CD34 Expression In Acute Lymphoblastic Leukaemia And Its Correlation With Clinicopathological...

Area of Science:

• Hematology
• Oncology
• Immunophenotyping

Background:

• Acute lymphoblastic leukemia (B-ALL) is a significant hematologic malignancy.
• Understanding immunophenotypic markers like CD34 is crucial for B-ALL diagnosis and prognosis.
• CD34 expression patterns in B-ALL require further population-specific investigation.

Purpose of the Study:

• To determine the frequency of CD34 positivity in B-cell acute lymphoblastic leukemia (B-ALL) within a specific population.
• To investigate the association between CD34 expression and the clinicopathological characteristics of B-ALL at diagnosis.

Main Methods:

• A cross-sectional study involving 105 newly diagnosed B-ALL patients.
• Immunohistochemistry on trephine biopsy samples for CD34 expression analysis.
• Molecular studies on bone marrow aspirates or peripheral blood samples, including cytogenetic analysis and gene rearrangement investigations.

Main Results:

• CD34 expression was observed in 73 (69.5%) of the 105 B-ALL patients.
• A significant association was found between CD34 positivity and high-risk disease (71.6% of high-risk patients were CD34 positive).
• CD34 expression showed correlations with specific clinical findings such as lymphadenopathy, splenomegaly, hepatomegaly, and central nervous system disease.

Conclusions:

• CD34 is expressed in a majority (over two-thirds) of B-ALL cases.
• CD34 positivity is significantly linked to high-risk B-ALL, suggesting its utility in risk stratification.
• Further research into CD34's role in B-ALL pathogenesis and treatment is warranted.