Cited by 107Prostate Cancer Treatment and ResearchProstate Cancer Diagnosis and TreatmentHormonal and reproductive studies

Castration-recurrent prostate cancer is not androgen-independent.

Mohler, James L.·2008·Advances in experimental medicine and biology

Abstract

An American man is diagnosed with prostate cancer (PC) every 3 min and dies from the disease every 17 min. Although androgen receptor (AR) expression is diminished following androgen deprivation therapy (ADT) that induces clinical remission in most patients, castration-recurrent PC expresses levels of AR protein similar to those found in androgen-stimulated PC and benign prostate. This observation suggests that the AR may be as important for growth regulation in castration-recurrent PC, as it is in androgen-stimulated PC and benign hyperplasia. Neither ligand-independence, point mutations, glutamine and/or glycine repeat expansion nor amplification have explained AR activation in most cases of castration-recurrent PC. Castration-recurrent PC tissue has levels of testosterone (T) similar to androgen-stimulated benign prostate and levels of dihydrotestosterone (DHT), the most active androgen for AR activation that are approximately 10% of androgen-stimulated benign prostate. These levels of tissue androgens appear capable of activating the AR since prostate-specific antigen (PSA), the classic androgen-regulated gene, is expressed at similar tissue levels in castration-recurrent and androgen-stimulated PC. These startling findings suggest a paradigm shift; PC that recurs during ADT is not androgen-independent.

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Crossref · 10.1007/978-0-387-69080-3_21

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  • Despite surgical or chemical castration, very low levels of androgens are still detectable in the tissues and serum of advanced prostate cancer patients.

    “However, a paradigm shift occurred upon reports by a number of groups demonstrating that despite being surgically or chemically castrated, very low levels of androgens are still detectable in the tissues and serum of advanced patients (2,3).”

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Authors
Mohler, J. L.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Mohler, James L.
Venue
Advances in experimental medicine and biology
Published
2008
Volume
617
Pages
223-234
ISSN
0065-2598 (ISSN-L)
OpenAlex
W202356157
Cited by
106
References
57
Citations by year
2025: 1 · 2024: 1 · 2023: 3 · 2022: 3 · 2021: 3 · 2020: 3 · 2019: 4 · 2018: 4 · 2017: 4 · 2016: 9 · 2015: 9 · 2014: 9 · 2013: 15 · 2012: 8
FWCI
62.53
Type
book chapter
Language
en
Open access
closed
Locations
  • Advances in experimental medicine and biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Treatment and Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Diagnosis and Treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
Keywords
castration-resistant prostate cancer, recurrent prostate cancer, androgen receptor, androgen-independent growth, androgen deprivation therapy, dihydrotestosterone, testosterone, prostate-specific antigen, androgen receptor activation, benign prostatic hyperplasia
MeSH terms
Androgens, Humans, Male, Neoplasm Recurrence, Local, Neoplasms, Hormone-Dependent, Orchiectomy, Prostatic Neoplasms, Receptors, Androgen

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