Prognostic significance of the tumor suppressor protein p53 gene in childhood acute lymphoblastic leukemia

  • Authors:
    • Wenwen Weng
    • Ping Zhang
    • Jinfei Ruan
    • Yao Zhang
    • Diandian Ba
    • Yongmin Tang
  • View Affiliations

  • Published online on: November 7, 2019     https://doi.org/10.3892/ol.2019.11064
  • Pages: 549-556
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Abstract

The tumor suppressor protein p53 (TP53) gene is associated with various types of cancer; however, little is known about TP53 expression in patients with childhood acute lymphoblastic leukemia (ALL). The aim of the present study was to investigate the prognostic value of TP53 expression in childhood ALL. To achieve this, TP53 mRNA levels of 146 children with ALL and 23 child donors with idiopathic thrombocytopenic purpura were determined by reverse transcription‑quantitative PCR. Relapse‑free survival (RFS) and overall survival (OS) were analyzed using the Kaplan‑Meier method. The results demonstrated that TP53 mRNA level in patients with ALL was higher compared with that in the ITP donors (P=0.019). Patients with highly‑expressed TP53 exhibited lower percentages of peripheral blood blast, higher platelet counts and inferior complete remission rates compared with patients with low expression of TP53. Survival analyses revealed that high TP53 expression was associated with poor OS and RFS in childhood ALL (P=0.018 and P=0.028, respectively) and was an independent prognostic factor in multivariate analysis for poor RFS (P<0.001) and OS (P<0.001). In conclusion, high TP53 expression is associated with poor outcomes and may be used as a molecular prognostic marker to be incorporated into an improved risk classification system for childhood ALL.
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January-2020
Volume 19 Issue 1

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Weng W, Zhang P, Ruan J, Zhang Y, Ba D and Tang Y: Prognostic significance of the tumor suppressor protein p53 gene in childhood acute lymphoblastic leukemia. Oncol Lett 19: 549-556, 2020
APA
Weng, W., Zhang, P., Ruan, J., Zhang, Y., Ba, D., & Tang, Y. (2020). Prognostic significance of the tumor suppressor protein p53 gene in childhood acute lymphoblastic leukemia. Oncology Letters, 19, 549-556. https://doi.org/10.3892/ol.2019.11064
MLA
Weng, W., Zhang, P., Ruan, J., Zhang, Y., Ba, D., Tang, Y."Prognostic significance of the tumor suppressor protein p53 gene in childhood acute lymphoblastic leukemia". Oncology Letters 19.1 (2020): 549-556.
Chicago
Weng, W., Zhang, P., Ruan, J., Zhang, Y., Ba, D., Tang, Y."Prognostic significance of the tumor suppressor protein p53 gene in childhood acute lymphoblastic leukemia". Oncology Letters 19, no. 1 (2020): 549-556. https://doi.org/10.3892/ol.2019.11064