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Updated: Sep 30, 2025
14:06
Isolation of Precursor B-cell Subsets from Umbilical Cord Blood
Published on: April 16, 2013
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In Utero Development and Immunosurveillance of B Cell Acute Lymphoblastic Leukemia
Nadine Rüchel1, Vera H Jepsen1, Daniel Hein1
1Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Heinrich-Heine-University, Moorenstraße 5, 40225, Duesseldorf, Germany.
Current Treatment Options in Oncology
|March 16, 2022
Summary
Pediatric B cell precursor acute lymphoblastic leukemia (BCP ALL) often starts before birth. Future prevention may involve modulating the immune system to target preleukemic cells.
Area of Science:
- Pediatric Oncology
- Immunology
- Cancer Genomics
Background:
- Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, typically diagnosed between ages 2-5.
- Leukemia development often involves a prenatal 'first hit' creating preleukemic cells, followed by a postnatal 'second hit'.
- Genetic factors (germline and somatic mutations) and immune dysregulation are implicated in ALL pathogenesis.
Purpose of the Study:
- To review the prenatal origins of pediatric B cell precursor ALL (BCP ALL).
- To explore potential preventive strategies targeting preleukemic cells.
- To discuss the role of the immune system, including NK and Th cells, in ALL development and control.
Main Methods:
- Review of existing literature on the prenatal origin of pediatric BCP ALL.
- Analysis of genetic predisposition and the 'second hit' hypothesis.
- Discussion of immune system involvement and potential immunomodulatory interventions.
Main Results:
- Preleukemic cells can emerge in utero, remaining clinically silent.
- A dysregulated immune response, potentially linked to infections, may act as a co-factor in leukemia onset.
- Natural killer (NK) and T helper (Th) cells may play a role in controlling preleukemic cells.
Conclusions:
- Identifying the cell of origin for preleukemia could inform prevention strategies.
- Immune system modulation for prolonged immunosurveillance of preleukemic clones is a potential future preventive approach.
- Understanding prenatal origins and immune interactions is key to developing novel preventive therapies for pediatric BCP ALL.
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