Title : Extragonadal Steroids Contribute Significantly to Androgen Receptor Activity and Development of Castration Resistance in Recurrent Prostate Cancer after Primary Therapy.

Pub. Date : 2020 May

PMID : 31845837






4 Functional Relationships(s)
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1 RESULTS: In LAPC4 and VCaP cells testosterone, dihydrotestosterone and androstenedione induced androgen receptor transcriptional activity, while dehydroepiandrosterone, 5alpha-androstan-3beta,17beta-diol, androstenediol and androsterone stimulated androgen receptor only in VCaP cells. Testosterone androgen receptor Homo sapiens
2 RESULTS: In LAPC4 and VCaP cells testosterone, dihydrotestosterone and androstenedione induced androgen receptor transcriptional activity, while dehydroepiandrosterone, 5alpha-androstan-3beta,17beta-diol, androstenediol and androsterone stimulated androgen receptor only in VCaP cells. Testosterone androgen receptor Homo sapiens
3 The total androgen receptor transcriptional activity secondary to testosterone, dihydrotestosterone and androstenedione was associated with time to castration resistance in patients from the PR.7 study (HR 2.17, 95% CI 1.12-4.23, p=0.02) in multivariate analysis using the castration sensitive model (LAPC4). Testosterone androgen receptor Homo sapiens
4 CONCLUSIONS: Extragonadal steroids contribute significantly to the androgen receptor axis activation at castration levels of testosterone in recurrent nonmetastatic prostate cancer and these sustain the development of castration resistance after primary local treatment. Testosterone androgen receptor Homo sapiens