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Patnaik SS, Laganà AS, Vitale SG, Butticè S, Noventa M, Gizzo S, Valenti G, Rapisarda AMC, La Rosa VL, Magno C, Triolo O, Dandolu V. Etiology, pathophysiology and biomarkers of interstitial cystitis/painful bladder syndrome. Arch Gynecol Obstet 2017; 295:1341-1359. [DOI: 10.1007/s00404-017-4364-2] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/30/2017] [Indexed: 12/30/2022]
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Zhang X, He H, Lu G, Xu T, Qin L, Wang X, Jin X, Liu B, Zhao Z, Shen Z, Shao Y. Specific inhibition of ICAM-1 effectively reduces bladder inflammation in a rat model of severe non-bacterial cystitis. Sci Rep 2016; 6:35672. [PMID: 27782122 PMCID: PMC5080624 DOI: 10.1038/srep35672] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 09/30/2016] [Indexed: 12/12/2022] Open
Abstract
The development and progression of bladder pain syndrome/interstitial cystitis (BPS/IC) is closely related to bladder inflammation. Intercellular adhesion molecule 1 (ICAM-1) is associated with bladder inflammation in BPS/IC. We investigated the effect of specific inhibition of ICAM-1 using an anti-ICAM-1 antibody (AIA) on bladder inflammation in a rat model of severe non-bacterial cystitis (NBC) resembling BPS/IC by evaluating the bladder inflammation grade, mast cell infiltration and related cytokines and receptors. We also compared the effects of AIA with the COX-2 inhibitor celecoxib and the neurokinin-1 receptor (NK1R) inhibitor aprepitant. Our NBC model was established by intraperitoneal injection of cyclophosphamide combined with intravesical protamine/lipopolysaccharide, which resulted in severe bladder inflammation and increased mast cell infiltration, similar to the pathological changes of BPS/IC. Inhibition of ICAM-1 by AIA significantly decreased the bladder inflammation grade and mast cell counts, which was accompanied by a reduction of purinergic receptors (P2X2/P2X3), prostaglandin E2, EP1/EP2 receptors, TNF-α, NK1R, and ICAM-1. Moreover, AIA showed superior effects to those of celecoxib and aprepitant treatment in improving the bladder inflammatory response. Our results suggest that ICAM-1 may play a critical role in bladder inflammation in severe NBC and may be used as a novel therapeutic target in non-bacterial bladder inflammation such as BPS/IC.
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Affiliation(s)
- Xiang Zhang
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hongchao He
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Guoliang Lu
- Department of Urology, Ruijin Hospital North, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Tianyuan Xu
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Liang Qin
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xianjin Wang
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xingwei Jin
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Boke Liu
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhonghua Zhao
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Zhoujun Shen
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuan Shao
- Department of Urology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Urology, Ruijin Hospital North, Shanghai Jiaotong University School of Medicine, Shanghai, China
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