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Potential Role of VHL, PTEN, and BAP1 Mutations in Renal Tumors

Krisztián Szegedi1,2, Zsuzsanna Szabó3, Judit Kállai4

  • 1Department of Urology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.

Journal of Clinical Medicine
|July 14, 2023
PubMed

Insights

Genetic analysis of renal tumors revealed VHL gene mutations in 25% of samples, suggesting a potential role in renal cancer development. However, overall mutation rates were low, indicating complex genetic factors influence disease progression.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Renal tumors exhibit genetic heterogeneity with common structural changes.
  • Mutations in VHL, PTEN, and BAP1 genes are frequently observed in renal tumors.
  • The clinical significance of these mutations requires further investigation.

Purpose of the Study:

  • To investigate the mutation frequency and clinical relevance of VHL, PTEN, and BAP1 genes in a cohort of renal tumor patients.
  • To identify potential genetic markers associated with renal tumor development.

Main Methods:

  • DNA sequencing of 24 renal tumor samples.
  • Analysis of mutations and genetic polymorphisms in VHL, PTEN, and BAP1 genes.

Main Results:

  • VHL gene mutations were detected in 25% of samples, with specific instances in AML and oncocytoma.
  • PTEN gene mutations were rare (one sample), and BAP1 showed no mutations (all wild-type).
  • One genetic polymorphism (rs779805) was identified in VHL.

Conclusions:

  • VHL and PTEN mutations may contribute to human renal cancer development.
  • The overall mutation rate for these genes was low, suggesting other genetic alterations are involved.
  • Disease development and prognosis are not solely determined by VHL, PTEN, or BAP1 mutations.
Keywords:
BAP1PTENVHLangiomyolipoma (AML)genetic polymorphismmutationrenal cell carcinoma (RCC)renal tumor

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