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Androprostamine A: a unique antiprostate cancer agent

Androprostamine A: a unique antiprostate cancer agent The androgen receptor (AR) is an important therapeutic target for all clinical states of prostate cancer. We screened cultured broths of microorganisms for their ability to suppress androgen-dependent growth of human prostate cancer LNCaP and VCaP cells without cytotoxicity. We have already identified androprostamine A (APA) from a Streptomyces culture broth as a functional inhibitor of AR. APA repressed R1881 (the synthetic androgen methyltrienolone)-induced androgen-regulated gene expression and dramatically inhibited R1881-induced prostate-specific antigen levels. However, APA did not act as an AR antagonist and did not inhibit AR transcriptional activity. Moreover, AS2405, an APA derivative, significantly inhibited the growth of VCaP cells in SCID mice upon oral administration. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Antibiotics Springer Journals

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References (38)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to the Japan Antibiotics Research Association 2021. corrected publication 2021
ISSN
0021-8820
eISSN
1881-1469
DOI
10.1038/s41429-021-00449-8
Publisher site
See Article on Publisher Site

Abstract

The androgen receptor (AR) is an important therapeutic target for all clinical states of prostate cancer. We screened cultured broths of microorganisms for their ability to suppress androgen-dependent growth of human prostate cancer LNCaP and VCaP cells without cytotoxicity. We have already identified androprostamine A (APA) from a Streptomyces culture broth as a functional inhibitor of AR. APA repressed R1881 (the synthetic androgen methyltrienolone)-induced androgen-regulated gene expression and dramatically inhibited R1881-induced prostate-specific antigen levels. However, APA did not act as an AR antagonist and did not inhibit AR transcriptional activity. Moreover, AS2405, an APA derivative, significantly inhibited the growth of VCaP cells in SCID mice upon oral administration.

Journal

The Journal of AntibioticsSpringer Journals

Published: Oct 1, 2021

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