A novel genomic alteration of LSAMP associates with aggressive prostate cancer in African American men. Academic Article uri icon

Overview

abstract

  • Evaluation of cancer genomes in global context is of great interest in light of changing ethnic distribution of the world population. We focused our study on men of African ancestry because of their disproportionately higher rate of prostate cancer (CaP) incidence and mortality. We present a systematic whole genome analyses, revealing alterations that differentiate African American (AA) and Caucasian American (CA) CaP genomes. We discovered a recurrent deletion on chromosome 3q13.31 centering on the LSAMP locus that was prevalent in tumors from AA men (cumulative analyses of 435 patients: whole genome sequence, 14; FISH evaluations, 101; and SNP array, 320 patients). Notably, carriers of this deletion experienced more rapid disease progression. In contrast, PTEN and ERG common driver alterations in CaP were significantly lower in AA prostate tumors compared to prostate tumors from CA. Moreover, the frequency of inter-chromosomal rearrangements was significantly higher in AA than CA tumors. These findings reveal differentially distributed somatic mutations in CaP across ancestral groups, which have implications for precision medicine strategies.

authors

publication date

  • October 31, 2015

Research

keywords

  • Black or African American
  • Cell Adhesion Molecules, Neuronal
  • Genetic Association Studies
  • Genetic Variation
  • Prostatic Neoplasms

Identity

PubMed Central ID

  • PMC4703707

Scopus Document Identifier

  • 84958903015

Digital Object Identifier (DOI)

  • 10.1016/j.ebiom.2015.10.028

PubMed ID

  • 26844274

Additional Document Info

volume

  • 2

issue

  • 12