scholarly journals Effect of ageing and single nucleotide polymorphisms associated with the risk of aggressive prostate cancer in a New Zealand population

2017 ◽  
Vol 13 (10) ◽  
pp. 1967-1980 ◽  
Author(s):  
Venkatesh Vaidyanathan ◽  
Vijay Naidu ◽  
Nishi Karunasinghe ◽  
Chi Hsiu-Juei Kao ◽  
Radha Pallati ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
New Zealand ◽  
Single Nucleotide Polymorphisms ◽  
Molecular Diagnostics ◽  
Genetic Interactions ◽  
Nucleotide Polymorphisms ◽  
Behavioral Factors ◽  
Single Nucleotide ◽  
Health Concerns ◽  
Male Health

Prostate cancer is one of the most significant male health concerns worldwide. Various researchers carrying out molecular diagnostics have indicated that genetic interactions with biological and behavioral factors play an important role in the overall risk and prognosis of this disease. These will be discussed in details with New Zealand perspective.

scholarly journals Single-Nucleotide Polymorphisms Sequencing Identifies Candidate Functional Variants at Prostate Cancer Risk Loci

Genes ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 547 ◽  
Author(s):  
Peng Zhang ◽  
Lori S. Tillmans ◽  
Stephen N. Thibodeau ◽  
Liang Wang
Keyword(s):  
Prostate Cancer ◽  
Cancer Risk ◽  
Single Nucleotide Polymorphisms ◽  
Protein Binding ◽  
Prostate Cancer Risk ◽  
Sequencing Analysis ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Functional Variants ◽  
Dependent Protein

Genome-wide association studies have identified over 150 risk loci that increase prostate cancer risk. However, few causal variants and their regulatory mechanisms have been characterized. In this study, we utilized our previously developed single-nucleotide polymorphisms sequencing (SNPs-seq) technology to test allele-dependent protein binding at 903 SNP sites covering 28 genomic regions. All selected SNPs have shown significant cis-association with at least one nearby gene. After preparing nuclear extract using LNCaP cell line, we first mixed the extract with dsDNA oligo pool for protein–DNA binding incubation. We then performed sequencing analysis on protein-bound oligos. SNPs-seq analysis showed protein-binding differences (>1.5-fold) between reference and variant alleles in 380 (42%) of 903 SNPs with androgen treatment and 403 (45%) of 903 SNPs without treatment. From these significant SNPs, we performed a database search and further narrowed down to 74 promising SNPs. To validate this initial finding, we performed electrophoretic mobility shift assay in two SNPs (rs12246440 and rs7077275) at CTBP2 locus and one SNP (rs113082846) at NCOA4 locus. This analysis showed that all three SNPs demonstrated allele-dependent protein-binding differences that were consistent with the SNPs-seq. Finally, clinical association analysis of the two candidate genes showed that CTBP2 was upregulated, while NCOA4 was downregulated in prostate cancer (p < 0.02). Lower expression of CTBP2 was associated with poor recurrence-free survival in prostate cancer. Utilizing our experimental data along with bioinformatic tools provides a strategy for identifying candidate functional elements at prostate cancer susceptibility loci to help guide subsequent laboratory studies.

scholarly journals Risk Prediction of Prostate Cancer with Single Nucleotide Polymorphisms and Prostate Specific Antigen

2019 ◽  
Vol 201 (3) ◽  
pp. 486-495 ◽  
Author(s):  
Sam Li-Sheng Chen ◽  
Jean Ching-Yuan Fann ◽  
Csilla Sipeky ◽  
Teng-Kai Yang ◽  
Sherry Yueh-Hsia Chiu ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Single Nucleotide Polymorphisms ◽  
Prostate Specific Antigen ◽  
Risk Prediction ◽  
Specific Antigen ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide
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