PMID- 27684718 OWN - NLM STAT- Publisher LR - 20191120 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 11 IP - 9 DP - 2016 TI - Transgenic Mice Expressing MCP-1 by the Urothelium Demonstrate Bladder Hypersensitivity, Pelvic Pain and Voiding Dysfunction: A Multidisciplinary Approach to the Study of Chronic Pelvic Pain Research Network Animal Model Study. PG - e0163829 LID - 10.1371/journal.pone.0163829 [doi] LID - e0163829 AB - Monocyte chemoattractant protein-1 (MCP-1) is one of the key chemokines that play important roles in diverse inflammatory and chronic pain conditions. Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic and debilitating inflammatory condition of the urinary bladder characterized by the hallmark symptoms of pelvic pain and voiding dysfunction. To facilitate IC/BPS research, we used transgenic technology to develop a novel urothelial MCP-1 secretion mouse model (URO-MCP-1). A transgene consisting of the uroplakin II gene promoter and the mouse MCP-1 coding sequence with a secretory element was constructed and microinjected. URO-MCP-1 mice were found to express MCP-1 mRNA in the bladder epithelium and MCP-1 protein in the urine, and developed bladder inflammation 24 hours after intravesical administration of a single sub-noxious dose of lipopolysaccharide (LPS). The inflamed bladders of URO-MCP-1 mice exhibited elevated mRNAs for interleukin (IL)-1ss, IL-6, substance P precursor, and nerve growth factor as well as increased macrophage infiltration. In parallel with these phenotypic changes, URO-MCP-1 mice manifested significant functional changes at days 1 and 3 after cystitis induction. These functional changes included pelvic pain as measured by von Frey filament stimulation and voiding dysfunction (increased urinary frequency, reduced average volume voided per micturition, and reduced maximum volume voided per micturition) as measured by micturition cages. Micturition changes remained evident at day 7 after cystitis induction, although these changes were not statistically significant. Control wild-type C57BL/6 mice manifested no clear changes in histological, biochemical and behavioral features after similar cystitis induction with LPS. Taken together, our results indicate that URO-MCP-1 mice are hypersensitive to bladder irritants such as LPS and develop pelvic pain and voiding dysfunction upon cystitis induction, providing a novel model for IC/BPS research. FAU - Xu, Suming AU - Xu S AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. FAU - Wang, Xu AU - Wang X AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. FAU - Wang, Yaoqin AU - Wang Y AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. FAU - Lutgendorf, Susan AU - Lutgendorf S AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. AD - Department of Psychology, University of Iowa, Iowa City, Iowa, United States of America. AD - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, Iowa, United States of America. FAU - Bradley, Catherine AU - Bradley C AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. AD - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, Iowa, United States of America. FAU - Schrepf, Andrew AU - Schrepf A AD - Department of Psychology, University of Iowa, Iowa City, Iowa, United States of America. FAU - Kreder, Karl AU - Kreder K AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. AD - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, Iowa, United States of America. FAU - O'Donnell, Michael AU - O'Donnell M AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. FAU - Luo, Yi AU - Luo Y AD - Department of Urology, University of Iowa, Iowa City, Iowa, United States of America. LA - eng GR - R01 DK100891/DK/NIDDK NIH HHS/United States GR - U01 DK082316/DK/NIDDK NIH HHS/United States GR - U01 DK082344/DK/NIDDK NIH HHS/United States PT - Journal Article DEP - 20160929 PL - United States TA - PLoS One JT - PloS one JID - 101285081 PMC - PMC5042429 COIS- The authors have declared that no competing interests exist. EDAT- 2016/09/30 06:00 MHDA- 2016/09/30 06:00 PMCR- 2016/09/29 CRDT- 2016/09/30 06:00 PHST- 2016/08/10 00:00 [received] PHST- 2016/09/14 00:00 [accepted] PHST- 2016/09/30 06:00 [entrez] PHST- 2016/09/30 06:00 [pubmed] PHST- 2016/09/30 06:00 [medline] PHST- 2016/09/29 00:00 [pmc-release] AID - PONE-D-16-32006 [pii] AID - 10.1371/journal.pone.0163829 [doi] PST - epublish SO - PLoS One. 2016 Sep 29;11(9):e0163829. doi: 10.1371/journal.pone.0163829. eCollection 2016.