Repurposing antitubercular agent isoniazid for treatment of prostate cancer. - UroToday

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The development of versatile antitumor agents with tumor-imaging, targeting and therapeutic activity is promising for clinical cancer therapy. Prostate cancer is still the one of the leading threats to males. Current therapies have restricted clinical efficiency for patients with advanced and metastatic prostate cancer. Recent studies demonstrate that monoamine oxidase A (MAOA) levels elevate with prostate cancer aggression and metastasis. In addition, MAOA inhibitor therapies have been reported as an effective means to reduce the metastasis of prostate cancer and extend mouse survival. Thus, these findings provide evidence that MAOA is promising for the treatment of metastatic and advanced prostate cancer. Herein, three isoniazid (INH)-dye conjugates were synthesized by conjugating MAOA inhibitor INH with mitochondria-targeting NIRF heptamethine dyes to improve the therapeutic efficacy of prostate cancer. These INH-dye conjugates could accumulate in PC-3 cellular mitochondria via organic anion transport peptide (OATP), increase ROS generation, and induce cancer cells apoptosis. In prostate cancer bearing xenografts, INH-dye conjugates showed significantly improved tumor-homing characteristics, resulting in potent antitumor activity via a reduction in MAOA activity. These results suggest that INH-dye conjugates have great potential to be used as versatile antitumor agents with prostate cancer targeting, NIR imaging, and potent antitumor efficacy.

Biomaterials science. 2018 Nov 23 [Epub ahead of print]

Qingzhi Lv, Dun Wang, Zimeng Yang, Jincheng Yang, Ruoshi Zhang, Xiaoguang Yang, Menglin Wang, Yongjun Wang

School of Pharmacy, Binzhou Medical University, Yantai 264003, China. ., Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China., Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China. .

PubMed http://www.ncbi.nlm.nih.gov/pubmed/30468220



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