Urinary androgens excretion patterns and prostate cancer in Mexican men.
Endocr Relat Cancer
; 28(12): 745-756, 2021 10 13.
Article
em En
| MEDLINE
| ID: mdl-34520388
ABSTRACT
Epidemiological studies related to androgens and prostate cancer (PC) have focused on serum determination of testosterone, androstenedione (A4), and DHEA, with inconsistent results. Herein, we hypothesized that differences in androgen biosynthetic and metabolic pathways, rather than differences in specific androgen concentrations, are associated with prostatic carcinogenesis. Therefore, spot urine samples from 111 incident PC cases with Gleason score at diagnosis and 227 healthy population controls, were analyzed. Urinary androgen concentrations (nanograms/milligrams of creatinine) were determined by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS). Using a factor analysis, we identified three androgen urinary excretion patterns. In a subsample, we evaluated a modification effect of the androgen receptor (AR) CAG polymorphism. Pattern I, characterized by A4 and testosterone hydroxylated metabolites (11ß-OHT; 2ß-OHT; 15ß-OHT; 2α-OHT; 6ß-OHT), was associated with high PC odds among carriers of AR gene (CAG)>19 repeats (OR 3.67 95% CI 1.23-11.0; P for interaction= 0.009). Conversely, higher testosterone excretion (pattern III), was marginally associated with lower (OR 0.35 95% CI 0.12-1.00, P for trend= 0.08) poorly differentiated PC (Gleason ≥8). No clear association was observed with pattern II (DHEA; 16α and 16ß-OHT). Our results were consistent with the previous evidence which suggests that the C11-oxy backdoor pathway is important for prostatic carcinogenesis. Androgen urine excretion analysis could be useful for PC diagnosis, treatment, and prognosis; however, further studies with a larger number of samples and the urinary determination of 11-ketoandrogens are necessary.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
/
Androgênios
Tipo de estudo:
Prognostic_studies
Limite:
Humans
/
Male
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Endocr Relat Cancer
Assunto da revista:
ENDOCRINOLOGIA
/
NEOPLASIAS
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
México