Related Experiment Video
Updated: Jun 22, 2026

Oncogenic Gene Fusion Detection Using Anchored Multiplex Polymerase Chain Reaction Followed by Next Generation Sequencing
Published on: July 5, 2019
Clinical features of the most common fusion genes in childhood acute lymphoblastic leukemia
J Lazic1, N Tosic, L Dokmanovic
1Department for Hematology and Oncology, University Children's Hospital, Tirsova 10, 11000 Belgrade, Serbia.
Insights
This study analyzed genetic translocations in pediatric acute lymphoblastic leukemia (ALL) to understand treatment response. Identifying specific chromosomal aberrations aids in predicting outcomes for children with ALL.
Area of Science:
- Pediatric Oncology
- Molecular Genetics
- Hematology
Background:
- Current acute lymphoblastic leukemia (ALL) treatments achieve high remission rates but some children remain incurable.
- Molecular genetic techniques have improved ALL subclassification and minimal residual disease monitoring, crucial for relapse prediction.
Purpose of the Study:
- To investigate the correlation between specific chromosomal aberrations, clinical features, and treatment response in pediatric de novo ALL.
- To analyze the incidence and clinical characteristics of ALL subtypes based on major risk-stratifying translocations.
Main Methods:
- Reverse transcriptase-polymerase chain reaction (RT-PCR) was used to detect four major translocations (BCR/ABL, MLL/AF4, TEL/AML1, E2A/PBX1).
- Bone marrow samples from 70 pediatric ALL patients were analyzed at diagnosis, post-induction, and post-intensive chemotherapy.
Main Results:
- The study identified the presence and incidence of four major risk-stratifying translocations in pediatric ALL.
- Results provide evidence for variable incidence and distinct clinical characteristics among different ALL subtypes.
Conclusions:
- Molecular genetic analysis of chromosomal aberrations is vital for understanding ALL heterogeneity.
- This research contributes to the evidence base for tailoring treatment strategies based on ALL subtypes and genetic profiles.
Abstract:
Contemporary protocols ensure high-remission rate and long-term free survival in children with acute lymphoblastic leukemia (ALL), but small percentage of patients is still incurable. Molecular genetic methods helped to establish submicroscopic classification as well as minimal residual disease follow-up, considered to be responsible for relapse. Our study enrolled 70 pediatric patients with de novo ALL, analyzed using reverse transcriptase-polymerase chain reaction for the presence of four major risk-stratifying translocations (BCR/ABL, MLL/AF4, TEL/AML1, and E2A/PBX1). Bone marrow samples were collected at diagnosis, at the end of induction phase, and after intensive chemotherapy with the aim to establish the correlation between chromosomal aberration, clinical features, and treatment response. Presenting the results of this study, we offer another evidence of variable incidence and clinical characteristics of ALL subtypes.
Related Concept Videos
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Differentiation of Common Myeloid Progenitor Cells
Disorders of Leukocytes
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune system...
Bone Marrow Sampling and Transplants
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
Primary Lymphoid Organs
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
Cancer-Critical Genes I: Proto-oncogenes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
