Lymphocyte subsets in pediatric acute lymphoblastic leukemia and their prognostic value
Luyun Peng1,2, Qingkai Dai1,2, Yuefang Wang1,2
1Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China.
Medicine
|November 4, 2024
Summary
Pediatric acute lymphoblastic leukemia (ALL) shows distinct lymphocyte subset changes at diagnosis compared to healthy children. CD4+ T cell levels are a key predictor of clinical outcomes in childhood ALL.
Area of Science:
- Immunology
- Pediatric Oncology
- Flow Cytometry
Background:
- Acute lymphoblastic leukemia (ALL) is a common childhood cancer.
- Lymphocyte subset alterations are observed in various immune conditions.
- Understanding immune cell dynamics in ALL is crucial for prognosis.
Purpose of the Study:
- To investigate lymphocyte subset changes in pediatric ALL at diagnosis.
- To compare these subsets with healthy children and those in complete remission (CR).
- To determine the prognostic significance of lymphocyte subsets in pediatric ALL.
Main Methods:
- Flow cytometry analysis of peripheral blood from 405 children with ALL at diagnosis.
- Comparison of lymphocyte subset percentages between ALL patients, healthy controls, and CR patients.
- Survival and prognostic factor analyses, including multivariate analysis.
Main Results:
- Significant differences in lymphocyte subsets were found in pediatric ALL compared to healthy children and CR patients.
- Lymphocyte subsets correlated with minimal residual disease and risk parameters.
- Percentages of CD3+ T cells, CD4+ T cells, and the CD4/CD8 ratio were linked to clinical outcomes.
Conclusions:
- Lymphocyte subsets undergo significant changes in pediatric ALL.
- CD4+ T cell percentage is an independent predictor of clinical prognosis in pediatric ALL.
- Lymphocyte subset analysis provides valuable prognostic information in childhood ALL.
