PMID- 30811623 OWN - NLM STAT- MEDLINE DCOM- 20200113 LR - 20200604 IS - 1097-0045 (Electronic) IS - 0270-4137 (Print) IS - 0270-4137 (Linking) VI - 79 IP - 7 DP - 2019 May TI - Inhibition of the CXCL12/CXCR4 axis prevents periurethral collagen accumulation and lower urinary tract dysfunction in vivo. PG - 757-767 LID - 10.1002/pros.23781 [doi] AB - BACKGROUND: Several studies show that prostatic fibrosis is associated with male lower urinary tract dysfunction (LUTD). Development of fibrosis is typically attributed to signaling through the transforming growth factor beta (TGF-beta) pathway, but our laboratory has demonstrated that in vitro treatment of human prostatic fibroblasts with the C-X-C motif chemokine ligand 12 (CXCL12) chemokine stimulates myofibroblast phenoconversion and that CXCL12 has the capacity to activate profibrotic pathways in these cells in a TGF-beta-independent manner. We have previously reported that feeding mice high-fat diet (HFD) results in obesity, type II diabetes, increased prostatic fibrosis, and urinary voiding dysfunction. The purpose of this study was to test the hypothesis that in vivo blockade of the CXCL12/CXCR4 axis would inhibit the development of fibrosis-mediated LUTD in HFD-fed mice. METHODS: Two-month-old male senescence-accelerated mouse prone-6 mice were fed either a HFD or low-fat diet (LFD) for 8 months. Half of each dietary group were given constant access to normal water or water that contained the C-X-C chemokine receptor type 4 (CXCR4; CXCL12 receptor) antagonist CXCR4AIII. At the conclusion of the study, mice were weighed, subjected to oral glucose tolerance testing and cystometry, and lower urinary tract tissues collected and assessed for collagen content. RESULTS: HFD-fed mice became significantly obese, insulin resistant, and hyperglycemic, consistent with acquisition of metabolic syndrome, compared with LFD-fed mice. Anesthetized cystometry demonstrated that HFD-fed mice experienced significantly longer intercontractile intervals and greater functional bladder capacity than LFD-fed mice. Immunohistochemistry demonstrated high levels of CXCR4 and CXCR7 staining in mouse prostate epithelial and stromal cells. Picrosirius red staining indicated significantly greater periurethral collagen deposition in the prostates of HFD than LFD-fed mice. Treatment with the CXCR4 antagonist CXCR4AIII did not affect acquisition of metabolic syndrome but did reduce both urinary voiding dysfunction and periurethral prostate collagen accumulation. CONCLUSIONS: This is the first study to report that obesity-induced lower urinary tract fibrosis and voiding dysfunction can be repressed by antagonizing the activity of the CXCR4 chemokine receptor in vivo. These data suggest that targeting the CXCL12/CXCR4 signaling pathway may be a clinical option for the prevention or treatment of human male LUTD. CI - (c) 2019 Wiley Periodicals, Inc. FAU - Macoska, Jill A AU - Macoska JA AUID- ORCID: 0000-0001-8471-2221 AD - Department of Biology, Center for Personalized Cancer Therapy, the University of Massachusetts Boston, Boston, Massachusetts. AD - Department of Urology, George M. O'Brien Center for Urologic Research, Madison, Wisconsin. FAU - Wang, Zunyi AU - Wang Z AD - Department of Urology, George M. O'Brien Center for Urologic Research, Madison, Wisconsin. AD - Department of Surgical Sciences, School of Veterinary Medicine, The University of Wisconsin Madison, Madison, Wisconsin. FAU - Virta, Johanna AU - Virta J AD - Department of Urology, George M. O'Brien Center for Urologic Research, Madison, Wisconsin. AD - Department of Surgical Sciences, School of Veterinary Medicine, The University of Wisconsin Madison, Madison, Wisconsin. FAU - Zacharias, Nicholas AU - Zacharias N AD - Department of Urology, George M. O'Brien Center for Urologic Research, Madison, Wisconsin. AD - Department of Surgical Sciences, School of Veterinary Medicine, The University of Wisconsin Madison, Madison, Wisconsin. FAU - Bjorling, Dale E AU - Bjorling DE AD - Department of Urology, George M. O'Brien Center for Urologic Research, Madison, Wisconsin. AD - Department of Surgical Sciences, School of Veterinary Medicine, The University of Wisconsin Madison, Madison, Wisconsin. LA - eng GR - U54 DK104310/DK/NIDDK NIH HHS/United States GR - U54DK04310/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20190227 PL - United States TA - Prostate JT - The Prostate JID - 8101368 RN - 0 (Anti-Inflammatory Agents) RN - 0 (CXCR4 protein, mouse) RN - 0 (Chemokine CXCL12) RN - 0 (Cxcl12 protein, mouse) RN - 0 (Receptors, CXCR4) RN - 9007-34-5 (Collagen) SB - IM MH - Animals MH - Anti-Inflammatory Agents/*pharmacology MH - Chemokine CXCL12/antagonists & inhibitors/biosynthesis MH - Collagen/metabolism MH - Diet, High-Fat/adverse effects MH - Disease Models, Animal MH - Fibrosis/etiology/pathology MH - Lower Urinary Tract Symptoms/*drug therapy/etiology/physiopathology MH - Male MH - Metabolic Syndrome/etiology MH - Mice MH - Obesity/etiology MH - Prostate/*drug effects/pathology MH - Receptors, CXCR4/*antagonists & inhibitors/*biosynthesis MH - Signal Transduction/drug effects PMC - PMC7269149 MID - NIHMS1016332 OTO - NOTNLM OT - diabetes OT - mouse OT - obesity OT - urinary OT - voiding EDAT- 2019/02/28 06:00 MHDA- 2020/01/14 06:00 PMCR- 2020/06/03 CRDT- 2019/02/28 06:00 PHST- 2018/12/05 00:00 [received] PHST- 2019/02/01 00:00 [revised] PHST- 2019/02/07 00:00 [accepted] PHST- 2019/02/28 06:00 [pubmed] PHST- 2020/01/14 06:00 [medline] PHST- 2019/02/28 06:00 [entrez] PHST- 2020/06/03 00:00 [pmc-release] AID - 10.1002/pros.23781 [doi] PST - ppublish SO - Prostate. 2019 May;79(7):757-767. doi: 10.1002/pros.23781. Epub 2019 Feb 27.