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Association between TP53 polymorphisms and chronic lymphocytic leukemia.

W-J Zhang1, S-L Guo, G Yin

  • 1Department of Hematopathology, Yantaishan Hospital, Yantai, China. houdljining@163.com.

European Review for Medical and Pharmacological Sciences
|December 18, 2020
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Summary
This summary is machine-generated.

TP53 gene variations are linked to chronic lymphocytic leukemia (CLL) development and progression. Specific TP53 polymorphisms correlate with altered blood cell counts, TP53 expression, and patient survival outcomes.

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Area of Science:

  • Genetics
  • Oncology
  • Molecular Biology

Background:

  • Chronic lymphocytic leukemia (CLL) is a common hematologic malignancy.
  • The TP53 tumor suppressor gene plays a critical role in cancer development.
  • Understanding the genetic basis of CLL can inform diagnosis and treatment.

Purpose of the Study:

  • To investigate the association between specific TP53 gene polymorphisms (rs8068934 and rs218698) and the risk of developing CLL.
  • To explore the relationship between these TP53 polymorphisms and clinical parameters, TP53 expression, and patient survival in CLL.

Main Methods:

  • Case-control study comparing CLL patients and healthy controls.
  • Genotyping of TP53 polymorphisms (rs8068934 A>G, rs218698 C>T) using peripheral blood samples.
  • Haplotype analysis and assessment of TP53 gene expression via RT-qPCR.
  • Correlation analysis with clinical data, including blood cell counts and survival.

Main Results:

  • Significant differences in allele and genotype frequencies of TP53 polymorphisms were observed between CLL patients and controls.
  • Specific TP53 haplotypes (AT and GC) showed differential distribution in CLL patients.
  • TP53 polymorphisms were associated with variations in white blood cell, platelet, and red blood cell counts.
  • Polymorphisms correlated with TP53 gene expression levels and significantly impacted patient survival.

Conclusions:

  • TP53 gene polymorphisms are significantly associated with the occurrence and progression of chronic lymphocytic leukemia.
  • These findings highlight the role of TP53 genetic variations as potential biomarkers for CLL risk and prognosis.