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Supplemental figure legends from Antiandrogen Therapy with Hydroxyflutamide or Androgen Receptor Degradation Enhancer ASC-J9 Enhances BCG Efficacy to Better Suppress Bladder Cancer Progression

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posted on 2023-04-03, 14:20 authored by Zhiqun Shang, Yanjun Li, Minghao Zhang, Jing Tian, Ruifa Han, Chih-Rong Shyr, Edward Messing, Shuyuan Yeh, Yuanjie Niu, Chawnshang Chang

Supplemental figure 1 ASC-J9® degraded androgen receptor expression in bladder cancer cells.Supplemental figure 2 HF or ASC-J9® induced THP-1 cell differentiating to M1 macrophage

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ARTICLE 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-α5β1 expression and IL6 release. Such consequences might then enhance BCG-induced bladder cancer cell death via increased TNFα 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. Mol Cancer Ther; 14(11); 2586–94. ©2015 AACR.

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