Abstract
Background
Sal-like protein 4 transcription factor (SALL4) and B cell-specific Moloney murine leukemia virus integration site 1 (BMI-1) gene were reported to cause treatment failure and relapse in several malignancies. We aimed to evaluate the prognostic value of SALL4 and BMI-1 in children with acute lymphoblastic leukemia (ALL).
Methods
This prospective cohort study was carried out on 60 children with ALL as the patient group and 60 age- and sex-matched children as the control group. We evaluated the expression pattern of both SALL4 and BMI-1 genes in the peripheral blood using real-time reverse transcriptase-polymerase chain reaction in children with ALL at initial diagnosis before chemotherapy. We followed up with the patient group for 2 years for relapse or death.
Results
Both SALL4 and BMI-1 were overexpressed in ALL children compared to the control group. Moreover, the expression of SALL4 and BMI-1 in patients with relapse was significantly higher than those with complete remission. The best cut-off of SALL4 and BMI-1 to predict relapse were >2.21 and 0.55 yielding sensitivity of 92.3% and 84.6%, respectively. Patients with overexpression of SALL4 and BMI-1 had significantly shorter overall and disease-free survival.
Conclusions
SALL4 and BMI-1 could be useful prognostic markers in children with ALL to predict relapse.
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Acknowledgements
The authors would like to thank the nurses at Clinical Pathology and Pediatric Department, Tanta University Hospital for their assistance in conducting the study. Also, we thank Mr. Amgad Hamza for his assistance in statistical analysis.
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D.E.A.: acquisition of data, recruitment of patients, drafting, and final approval of the manuscript. H.H.: idea of the research, performing the statistical analysis, performing laboratory analysis, drafting, and final approval of the manuscript. A.Y.: acquisition of data, performing laboratory analysis, drafting. and final approval of the manuscript. R.K.: acquisition of data, recruitment of patients, drafting, and final approval of the manuscript. H.A.-A.: acquisition of data, statistical analysis, drafting, and final approval of the manuscript. A.S.: acquisition of data, help in the statistical analysis, drafting, and final approval of the manuscript. S.E.: help in the statistical analysis, drafting, and final approval of the manuscript. D.A.: acquisition of data, performing laboratory analysis, drafting, and final approval of the manuscript.
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The study was approved by the local ethics committee of the Faculty of Medicine, Tanta University, Egypt.
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The patients were enrolled after obtaining written informed consent from their parents.
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Hodeib, H., El Amrousy, D., Youssef, A. et al. Acute lymphoblastic leukemia in children and SALL4 and BMI-1 gene expression. Pediatr Res 94, 1510–1515 (2023). https://doi.org/10.1038/s41390-021-01854-3
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DOI: https://doi.org/10.1038/s41390-021-01854-3