Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC Treatment

Recent advances in prostate cancer (PC) research unveiled real androgen receptor (AR) functions in castration-resistant PC (CRPC). Moreover, AR still accelerates PC cell proliferation via the activation of several mechanisms (e.g., mutation, variants, and amplifications in CRPC). New-generation AR s...

Full description

Bibliographic Details
Main Authors: Tomoyuki Makino, Kouji Izumi, Atsushi Mizokami
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/9/4/414
_version_ 1797537977856950272
author Tomoyuki Makino
Kouji Izumi
Atsushi Mizokami
author_facet Tomoyuki Makino
Kouji Izumi
Atsushi Mizokami
author_sort Tomoyuki Makino
collection DOAJ
description Recent advances in prostate cancer (PC) research unveiled real androgen receptor (AR) functions in castration-resistant PC (CRPC). Moreover, AR still accelerates PC cell proliferation via the activation of several mechanisms (e.g., mutation, variants, and amplifications in CRPC). New-generation AR signaling-targeted agents, inhibiting extremely the activity of AR, were developed based on these incontrovertible mechanisms of AR-induced CRPC progression. However, long-term administration of AR signaling-targeted agents subsequently induces the major problem that AR (complete)-independent CRPC cells present neither AR nor prostate-specific antigen, including neuroendocrine differentiation as a subtype of AR-independent CRPC. Moreover, there are few treatments effective for AR-independent CRPC with solid evidence. This study focuses on the transformation mechanisms of AR-independent from AR-dependent CRPC cells and potential treatment strategy for AR-independent CRPC and discusses them based on a review of basic and clinical literature.
first_indexed 2024-03-10T12:23:55Z
format Article
id doaj.art-35450a2d71bb4e22b2bb0dd8bbcdbda6
institution Directory Open Access Journal
issn 2227-9059
language English
last_indexed 2024-03-10T12:23:55Z
publishDate 2021-04-01
publisher MDPI AG
record_format Article
series Biomedicines
spelling doaj.art-35450a2d71bb4e22b2bb0dd8bbcdbda62023-11-21T15:10:38ZengMDPI AGBiomedicines2227-90592021-04-019441410.3390/biomedicines9040414Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC TreatmentTomoyuki Makino0Kouji Izumi1Atsushi Mizokami2Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa 920-8641, JapanDepartment of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa 920-8641, JapanDepartment of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa 920-8641, JapanRecent advances in prostate cancer (PC) research unveiled real androgen receptor (AR) functions in castration-resistant PC (CRPC). Moreover, AR still accelerates PC cell proliferation via the activation of several mechanisms (e.g., mutation, variants, and amplifications in CRPC). New-generation AR signaling-targeted agents, inhibiting extremely the activity of AR, were developed based on these incontrovertible mechanisms of AR-induced CRPC progression. However, long-term administration of AR signaling-targeted agents subsequently induces the major problem that AR (complete)-independent CRPC cells present neither AR nor prostate-specific antigen, including neuroendocrine differentiation as a subtype of AR-independent CRPC. Moreover, there are few treatments effective for AR-independent CRPC with solid evidence. This study focuses on the transformation mechanisms of AR-independent from AR-dependent CRPC cells and potential treatment strategy for AR-independent CRPC and discusses them based on a review of basic and clinical literature.https://www.mdpi.com/2227-9059/9/4/414androgen receptorcastration-resistant prostate cancerneuroendocrine prostate cancerdouble-negative castration-resistant prostate cancer
spellingShingle Tomoyuki Makino
Kouji Izumi
Atsushi Mizokami
Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC Treatment
Biomedicines
androgen receptor
castration-resistant prostate cancer
neuroendocrine prostate cancer
double-negative castration-resistant prostate cancer
title Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC Treatment
title_full Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC Treatment
title_fullStr Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC Treatment
title_full_unstemmed Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC Treatment
title_short Undesirable Status of Prostate Cancer Cells after Intensive Inhibition of AR Signaling: Post-AR Era of CRPC Treatment
title_sort undesirable status of prostate cancer cells after intensive inhibition of ar signaling post ar era of crpc treatment
topic androgen receptor
castration-resistant prostate cancer
neuroendocrine prostate cancer
double-negative castration-resistant prostate cancer
url https://www.mdpi.com/2227-9059/9/4/414
work_keys_str_mv AT tomoyukimakino undesirablestatusofprostatecancercellsafterintensiveinhibitionofarsignalingpostareraofcrpctreatment
AT koujiizumi undesirablestatusofprostatecancercellsafterintensiveinhibitionofarsignalingpostareraofcrpctreatment
AT atsushimizokami undesirablestatusofprostatecancercellsafterintensiveinhibitionofarsignalingpostareraofcrpctreatment