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Shared Inherited Genetics of Benign Prostatic Hyperplasia and Prostate Cancer.

Alexander Glaser1,2, Zhuqing Shi1, Jun Wei1

  • 1Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, IL, USA.

European Urology Open Science
|November 10, 2022
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Summary
This summary is machine-generated.

Benign prostatic hyperplasia (BPH) and prostate cancer (PCa) share common genetic links, suggesting their observed association is not solely due to detection bias. This genetic relationship may influence understanding disease origins and risk assessment.

Keywords:
Benign prostatic hyperplasiaGenetic correlationGenetic risk scoreHeritabilityLethalProstate cancerSingle nucleotide polymorphisms

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Area of Science:

  • Genetics
  • Urology
  • Oncology

Background:

  • The link between benign prostatic hyperplasia (BPH) and prostate cancer (PCa) is debated, often attributed to detection bias in observational studies.
  • Investigating the underlying genetic factors can clarify the true association between these conditions.

Purpose of the Study:

  • To determine if BPH and PCa share common inherited genetic factors using single nucleotide polymorphisms (SNPs).
  • To assess the phenotypic and genetic correlations between BPH and PCa.

Main Methods:

  • Analysis of phenotypic and genetic correlations using genome-wide SNPs in White men from the UK Biobank.
  • Utilized linkage disequilibrium score regression for genetic correlation and genetic risk scores (GRS) for cross-disease associations.
  • Examined associations between established risk-associated SNPs for BPH and PCa.

Main Results:

  • A significant phenotypic correlation (p < 0.001) and genetic correlation (r_g = 0.16, p = 0.01) were found between BPH and PCa.
  • Established risk SNPs for one disease were significantly associated with the other, and cross-disease GRS showed significant associations.
  • GRS for BPH was associated with increased PCa risk (OR=1.26) and inversely associated with lethal PCa risk (OR=0.58).

Conclusions:

  • Benign prostatic hyperplasia and prostate cancer share common inherited genetic underpinnings.
  • The observed phenotypic association is not entirely explained by detection bias, highlighting shared genetic etiology.
  • These findings have implications for understanding disease mechanisms and improving risk stratification for BPH and PCa.