Genome-wide association study identifies novel single nucleotide polymorphisms having age-specific effect on prostate-specific antigen levels.
Prostate
; 80(16): 1405-1412, 2020 12.
Article
in En
| MEDLINE
| ID: mdl-32914890
ABSTRACT
BACKGROUND:
Testing for prostate-specific antigen (PSA) levels in blood are widely used and associated with prostate cancer risk and outcome. After puberty, PSA levels increase by age and multiple single nucleotide polymorphisms (SNPs) have been found to be associated with PSA levels. However, the relationship between the effects of SNPs and age on PSA remains unknown.METHODS:
To test for SNP × age interaction, we conducted a genome-wide association study using 2394 men without prostate cancer diagnosis from Malmö, Sweden as a discovery set and 2137 men from the eMERGE study (USA) for validation. Linear regression was used to identify significant interactions between SNP and age (p < 1 × 10-4 for discovery, p < .05 for validation).RESULTS:
The 15 SNPs from three different loci (8p11.22, 8p12, 3q25.31) are found to have age-specific effect on PSA levels. Expression quantitative trait loci (eQTLs) analysis shows that 12 SNPs from 3q25.31 locus affect the expression level of three genes KCNAB1, SLC33A1, PLCH1.CONCLUSIONS:
Our results suggest that SNPs may have age-specific effect on PSA levels, which provides new direction to study genetic markers for PSA.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Membrane Transport Proteins
/
Prostatic Neoplasms
/
Prostate-Specific Antigen
/
Genetic Predisposition to Disease
/
Polymorphism, Single Nucleotide
/
Kv1.3 Potassium Channel
/
Phosphoinositide Phospholipase C
Type of study:
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Aged
/
Aged80
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Prostate
Year:
2020
Document type:
Article
Affiliation country:
United States