Antiandrogen therapy with hydroxyflutamide or androgen receptor degradation enhancer ASCJ-9 enhances BCG efficacy to better suppress bladder cancer progression

Zhiqun Shang, Yanjun Li, Minghao Zhang, Jing Tian, Ruifa Han, Chih Rong Shyr, Edward Messing, Shuyuan Yeh, Yuanjie Niu, Chawnshang Chang*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

34 Scopus citations

Abstract

Recent studies suggest that the androgen receptor (AR) might play important roles in influencing bladder cancer progression, yet its clinical application remains unclear. Here, we developed a new combined therapy with Bacillus Calmette- Guérin (BCG) and the AR degradation enhancer ASC-J9 or antiandrogen hydroxyflutamide (HF) to better suppress bladder cancer progression. Mechanism dissection revealed that ASC-J9 treatment enhanced BCG efficacy to suppress bladder cancer cell proliferation via increasing the recruitment of monocytes/macrophages that involved the promotion of BCG attachment/internalization to the bladder cancer cells through increased integrin-a5b1 expression and IL6 release. Such consequences might then enhance BCG-induced bladder cancer cell death via increased TNFa release. Interestingly, we also found that ASC-J9 treatment could directly promote BCG-induced HMGB1 release to enhance the BCG cytotoxic effects for suppression of bladder cancer cell growth. In vivo approaches also concluded that ASC-J9 could enhance the efficacy of BCG to better suppress bladder cancer progression in BBN-induced bladder cancer mouse models. Together, these results suggest that the newly developed therapy combining BCG plus ASC-J9 may become a novel therapy to better suppress bladder cancer progress.

Original languageEnglish
Pages (from-to)2586-2594
Number of pages9
JournalMolecular Cancer Therapeutics
Volume14
Issue number11
DOIs
StatePublished - 01 11 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 American Association for Cancer Research.

Fingerprint

Dive into the research topics of 'Antiandrogen therapy with hydroxyflutamide or androgen receptor degradation enhancer ASCJ-9 enhances BCG efficacy to better suppress bladder cancer progression'. Together they form a unique fingerprint.

Cite this