Biomaterial-assisted drug delivery for interstitial cystitis/bladder pain syndrome treatment.

Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic and painful bladder condition afflicting patients with increased urinary urgency and frequency as well as incontinence. Owing to the elusive pathogenesis of IC/BPS, obtaining effective therapeutic outcomes remains challenging. Current administrational routes such as intravesical-bladder injection improve the treatment efficacy and reduce systemic side effects. However, the bladder permeability barrier hinders drug penetration into the bladder wall to meet the desired therapeutic expectation. These issues can be addressed by encapsulating drugs into biomaterials. When appropriately exploited, they would increase the drug dwelling time in the bladder, enhance the penetration of mucosa and improve the therapeutic response of IC/BPS. In this review, we first elucidate the pathogenesis and animal models of IC/BPS. Then, we highlight recent representative biomaterial-assisted drug delivery systems for IC/BPS treatment. Finally, we discuss the challenges and outlook for further developing biomaterial-based delivery systems for IC/BPS management.

Journal of materials chemistry. B. 2020 Nov 12 [Epub ahead of print]

Zhijun Lin, Hanze Hu, Bolong Liu, Yanyan Chen, Yu Tao, Xiangfu Zhou, Mingqiang Li

Laboratory of Biomaterials and Translational Medicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China. ., Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA., Laboratory of Biomaterials and Translational Medicine, Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China. and Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou 510630, China.

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