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Spiegelhoff A, Wang K, Ridlon M, Lavery T, Kennedy CL, George S, Stietz KPK. Polychlorinated Biphenyls (PCBs) Impact Prostatic Collagen Density and Bladder Volume in Young Adult Mice Exposed during in Utero and Lactational Development. TOXICS 2023; 11:609. [PMID: 37505574 PMCID: PMC10384510 DOI: 10.3390/toxics11070609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/29/2023]
Abstract
Polychlorinated biphenyls (PCBs) are persistent organic pollutants linked to deleterious health outcomes, including voiding dysfunction in developmentally exposed mice. Changes in prostate volume and/or extracellular matrix composition are associated with voiding dysfunction in men and animal models. Whether PCB-induced changes in voiding function in male mice occur in part via alterations to the prostate or an alternate mechanism is unclear. Therefore, we tested whether developmental exposure to the MARBLES PCB mixture altered prostate morphology in young adult offspring. C57Bl/6J female mice were dosed daily with the MARBLES PCB mixture at 0, 0.1, 1 or 6 mg/kg/d for two weeks prior to mating and through gestation and lactation, offspring were collected at 6 weeks of age. Ventral prostate mass was decreased in the 1 mg/kg/d PCB group compared to other PCB groups. There were no PCB-induced changes in prostate smooth muscle thickness, apoptosis, proliferation, or testes mass. PCBs impacted the prostate extracellular matrix; anterior prostate collagen density was decreased in the 1 mg/kg/d PCB group compared to all other groups. Normalized bladder volume was increased in male and female offspring in the 6 mg/kg/d PCB group compared to control. No change in water consumption, bladder mass or bladder smooth muscle thickness accompanied changes in bladder volume. Urine and serum creatinine concentrations were elevated but only in male mice. Together, these results suggest that developmental exposure to PCBs can influence prostate wet weight and prostate/bladder morphology, but PCBs do not promote prostate enlargement. Whether these changes persist throughout adult life and how they contribute to voiding function in animal models and humans is of future interest.
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Affiliation(s)
- Audrey Spiegelhoff
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Kathy Wang
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Monica Ridlon
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Thomas Lavery
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Conner L Kennedy
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Serena George
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Kimberly P Keil Stietz
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
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Wissmiller K, Bilekova S, Franko A, Lutz SZ, Katsburg M, Gulde S, Pellegata NS, Stenzl A, Heni M, Berti L, Häring HU, Lickert H. Inceptor correlates with markers of prostate cancer progression and modulates insulin/IGF1 signaling and cancer cell migration. Mol Metab 2023; 71:101706. [PMID: 36931467 PMCID: PMC10074927 DOI: 10.1016/j.molmet.2023.101706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/21/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
OBJECTIVE The insulin/insulin-like growth factor 1 (IGF1) pathway is emerging as a crucial component of prostate cancer progression. Therefore, we investigated the role of the novel insulin/IGF1 signaling modulator inceptor in prostate cancer. METHODS We analyzed the expression of inceptor in human samples of benign prostate epithelium and prostate cancer. Further, we performed signaling and functional assays using prostate cancer cell lines. RESULTS We found that inceptor was expressed in human benign and malignant prostate tissue and its expression positively correlated with various genes of interest, including genes involved in androgen signaling. In vitro, total levels of inceptor were increased upon androgen deprivation and correlated with high levels of androgen receptor in the nucleus. Inceptor overexpression was associated with increased cell migration, altered IGF1R trafficking and higher IGF1R activation. CONCLUSIONS Our in vitro results showed that inceptor expression was associated with androgen status, increased migration, and IGF1R signaling. In human samples, inceptor expression was significantly correlated with markers of prostate cancer progression. Taken together, these data provide a basis for investigation of inceptor in the context of prostate cancer.
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Affiliation(s)
- Katharina Wissmiller
- Institute of Diabetes and Regeneration Research at the Helmholtz Center Munich, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; Technical University of Munich, School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sara Bilekova
- Institute of Diabetes and Regeneration Research at the Helmholtz Center Munich, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; Technical University of Munich, School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andras Franko
- German Center for Diabetes Research (DZD), Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; Institute of Diabetes and Metabolic Disease at the Helmholtz Center Munich, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany; Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany
| | - Stefan Z Lutz
- Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany; Clinic for Geriatric and Orthopedic Rehabilitation Bad Sebastiansweiler, Hechinger Str. 26, 72116, Mössingen, Germany
| | - Miriam Katsburg
- Institute of Diabetes and Regeneration Research at the Helmholtz Center Munich, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
| | - Sebastian Gulde
- Institute of Diabetes and Cancer at the Helmholtz Center Munich, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
| | - Natalia S Pellegata
- Institute of Diabetes and Cancer at the Helmholtz Center Munich, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
| | - Arnulf Stenzl
- Department of Urology, University Hospital Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - Martin Heni
- German Center for Diabetes Research (DZD), Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; Institute of Diabetes and Metabolic Disease at the Helmholtz Center Munich, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany; Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany; Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, University Hospital Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - Lucia Berti
- German Center for Diabetes Research (DZD), Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; Institute of Diabetes and Metabolic Disease at the Helmholtz Center Munich, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany
| | - Hans-Ulrich Häring
- German Center for Diabetes Research (DZD), Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; Institute of Diabetes and Metabolic Disease at the Helmholtz Center Munich, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany; Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Ottfried-Müller-Str. 10, 72076, Tübingen, Germany
| | - Heiko Lickert
- Institute of Diabetes and Regeneration Research at the Helmholtz Center Munich, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany; Technical University of Munich, School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany.
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3
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Graham MK, Chikarmane R, Wang R, Vaghasia A, Gupta A, Zheng Q, Wodu B, Pan X, Castagna N, Liu J, Meyers J, Skaist A, Wheelan S, Simons BW, Bieberich C, Nelson WG, DeWeese TL, De Marzo AM, Yegnasubramanian S. Single-cell atlas of epithelial and stromal cell heterogeneity by lobe and strain in the mouse prostate. Prostate 2023; 83:286-303. [PMID: 36373171 DOI: 10.1002/pros.24460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Evaluating the complex interplay of cell types in the tissue microenvironment is critical to understanding the origin and progression of diseases in the prostate and potential opportunities for intervention. Mouse models are an essential tool to investigate the molecular and cell-type-specific contributions of prostate disease at an organismal level. While there are well-documented differences in the extent, timing, and nature of disease development in various genetically engineered and exposure-based mouse models in different mouse strains and prostate lobes within each mouse strain, the underlying molecular phenotypic differences in cell types across mouse strains and prostate lobes are incompletely understood. METHODS In this study, we used single-cell RNA-sequencing (scRNA-seq) methods to assess the single-cell transcriptomes of 6-month-old mouse prostates from two commonly used mouse strains, friend virus B/NIH jackson (FVB/NJ) (N = 2) and C57BL/6J (N = 3). For each mouse, the lobes of the prostate were dissected (anterior, dorsal, lateral, and ventral), and individual scRNA-seq libraries were generated. In situ and pathological analyses were used to explore the spatial and anatomical distributions of novel cell types and molecular markers defining these cell types. RESULTS Data dimensionality reduction and clustering analysis of scRNA-seq data revealed that basal and luminal cells possessed strain-specific transcriptomic differences, with luminal cells also displaying marked lobe-specific differences. Gene set enrichment analysis comparing luminal cells by strain showed enrichment of proto-Oncogene targets in FVB/NJ mice. Additionally, three rare populations of epithelial cells clustered independently of strain and lobe: one population of luminal cells expressing Foxi1 and components of the vacuolar ATPase proton pump (Atp6v0d2 and Atp6v1g3), another population expressing Psca and other stem cell-associated genes (Ly6a/Sca-1, Tacstd2/Trop-2), and a neuroendocrine population expressing Chga, Chgb, and Syp. In contrast, stromal cell clusters, including fibroblasts, smooth muscle cells, endothelial cells, pericytes, and immune cell types, were conserved across strain and lobe, clustering largely by cell type and not by strain or lobe. One notable exception to this was the identification of two distinct fibroblast populations that we term subglandular fibroblasts and interstitial fibroblasts based on their strikingly distinct spatial distribution in the mouse prostate. CONCLUSIONS Altogether, these data provide a practical reference of the transcriptional profiles of mouse prostate from two commonly used mouse strains and across all four prostate lobes.
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Affiliation(s)
- Mindy K Graham
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland, USA
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Roshan Chikarmane
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Rulin Wang
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ajay Vaghasia
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Anuj Gupta
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Qizhi Zheng
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Bulouere Wodu
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Xin Pan
- Department of Neurology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Nicole Castagna
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jianyong Liu
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jennifer Meyers
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Alyza Skaist
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sarah Wheelan
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Brian W Simons
- Center for Comparative Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Charles Bieberich
- Department of Biological Sciences, University of Maryland at Baltimore County, Baltimore, Maryland, USA
| | - William G Nelson
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Theodore L DeWeese
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland, USA
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Angelo M De Marzo
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Srinivasan Yegnasubramanian
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland, USA
- School of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
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4
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Wegner KA, Ruetten H, Girardi NM, O’Driscoll CA, Sandhu JK, Turco AE, Abler LL, Wang P, Wang Z, Bjorling DE, Malinowski R, Peterson RE, Strand DW, Marker PC, Vezina CM. Genetic background but not prostatic epithelial beta-catenin influences susceptibility of male mice to testosterone and estradiol-induced urinary dysfunction. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2021; 9:121-131. [PMID: 33816700 PMCID: PMC8012832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Urinary voiding dysfunction in aging men can cause bothersome symptoms and irreparable tissue damage. Underlying mechanisms are not fully known. We previously demonstrated that subcutaneous, slow-release testosterone and estradiol implants (T+E2) drive a pattern of urinary voiding dysfunction in male mice that resembles that of aging men. The initial goal of this study was to test the hypothesis that prostatic epithelial beta-catenin (Ctnnb1) is required for T+E2-mediated voiding dysfunction. Targeted Ctnnb1 deletion did not significantly change voiding function in control or T+E2 treated mice but led to the surprising discovery that the C57BL/6J × FVB/NJ × 129S1 mixed genetic background onto which Ctnnb1 loss of function alleles were maintained is profoundly susceptible to voiding dysfunction. The mixed background mice develop a more rapid T+E2-mediated increase in spontaneous urine spotting, are more impaired in ability to initiate bladder contraction, and develop larger and heavier bladders than T+E2 treated C57BL/6J pure bred mice. To better understand mechanisms, we separately evaluated contributions of T and E2 and found that E2 mediates voiding dysfunction. Our findings that genetic factors serve as modifiers of responsiveness to T and E2 demonstrate the need to control for genetic background in studies of male voiding dysfunction. We also show that genetic factors could control severity of voiding dysfunction. We demonstrate the importance of E2 as a key mediator of voiding impairment, and show that the concentration of E2 in subcutaneous implants determines the severity of voiding dysfunction in mice, demonstrating that the mouse model is tunable, a factor which is important for future pharmacological intervention studies.
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Affiliation(s)
- Kyle A Wegner
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Hannah Ruetten
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Nicholas M Girardi
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Chelsea A O’Driscoll
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Jaskiran K Sandhu
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Anne E Turco
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Lisa L Abler
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Peiqing Wang
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Zunyi Wang
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Dale E Bjorling
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
| | - Rita Malinowski
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Pharmacy, University of Wisconsin-MadisonMadison, WI, USA
| | | | - Douglas W Strand
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- Department of Urology, University of Texas Southwestern Medical CenterDallas, Texas, USA
| | - Paul C Marker
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Pharmacy, University of Wisconsin-MadisonMadison, WI, USA
| | - Chad M Vezina
- University of Wisconsin-Madison/UMASS Boston/UT-Southwestern George M. O’Brien Center for Benign Urologic ResearchMadison, Wisconsin 53706, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, Wisconsin 53706, USA
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5
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Ruetten H, Cole C, Wehber M, Wegner KA, Girardi NM, Peterson NT, Scharpf BR, Romero MF, Wood MW, Colopy SA, Bjorling DE, Vezina CM. An immunohistochemical prostate cell identification key indicates that aging shifts procollagen 1A1 production from myofibroblasts to fibroblasts in dogs prone to prostate-related urinary dysfunction. PLoS One 2020; 15:e0232564. [PMID: 32726309 PMCID: PMC7390344 DOI: 10.1371/journal.pone.0232564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/08/2020] [Indexed: 11/28/2022] Open
Abstract
Background The identity and spatial distribution of prostatic cell types has been determined in humans but not in dogs, even though aging- and prostate-related voiding disorders are common in both species and mechanistic factors, such as prostatic collagen accumulation, appear to be shared between species. In this publication we characterize the regional distribution of prostatic cell types in the young intact dog to enable comparisons with human and mice and we examine how the cellular source of procollagen 1A1 changes with age in intact male dogs. Methods A multichotomous decision tree involving sequential immunohistochemical stains was validated for use in dog and used to identify specific prostatic cell types and determine their distribution in the capsule, peripheral, periurethral and urethral regions of the young intact canine prostate. Prostatic cells identified using this technique include perivascular smooth muscle cells, pericytes, endothelial cells, luminal, intermediate, and basal epithelial cells, neuroendocrine cells, myofibroblasts, fibroblasts, fibrocytes, and other hematolymphoid cells. To enhance rigor and transparency, all high resolution images (representative images shown in the figures and biological replicates) are available through the GUDMAP database at https://doi.org/10.25548/16-WMM4. Results The prostatic peripheral region harbors the largest proportion of epithelial cells. Aging does not change the density of hematolymphoid cells, fibroblasts, and myofibroblasts in the peripheral region or in the fibromuscular capsule, regions where we previously observed aging- and androgen-mediated increases in prostatic collagen abundance Instead, we observed aging-related changes the procollagen 1A1 positive prostatic cell identity from a myofibroblast to a fibroblast. Conclusions Hematolymphoid cells and myofibroblasts are often identified as sources of collagen in tissues prone to aging-related fibrosis. We show that these are not the likely sources of pathological collagen synthesis in older intact male dogs. Instead, we identify an aging-related shift in the prostatic cell type producing procollagen 1A1 that will help direct development of cell type and prostate appropriate therapeutics for collagen accumulation.
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Affiliation(s)
- Hannah Ruetten
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Clara Cole
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Marlyse Wehber
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Kyle A. Wegner
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Nicholas M. Girardi
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Nelson T. Peterson
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Brandon R. Scharpf
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Michael F. Romero
- Physiology and Biomedical Engineering and Nephrology and Hypertension, George M. O’Brien Urology Research Center, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, United States of America
| | - Michael W. Wood
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Sara A. Colopy
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Dale E. Bjorling
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
| | - Chad M. Vezina
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- George M. O’Brien Benign Urology Center, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin- Madison, Madison, Wisconsin, United States of America
- * E-mail:
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6
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Turco AE, Thomas S, Crawford LK, Tang W, Peterson RE, Li L, Ricke WA, Vezina CM. In utero and lactational 2,3,7,8-tetrachlorodibenzo- p-dioxin (TCDD) exposure exacerbates urinary dysfunction in hormone-treated C57BL/6J mice through a non-malignant mechanism involving proteomic changes in the prostate that differ from those elicited by testosterone and estradiol. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2020; 8:59-72. [PMID: 32211455 PMCID: PMC7076297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
A recent study directed new focus on the fetal and neonatal environment as a risk factor for urinary dysfunction in aging males. Male mice were exposed in utero and via lactation (IUL) to the persistent environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and then administered slow-release, subcutaneous implants of testosterone and estradiol (T+E2) as adults to mimic the hormonal environment of aging men. IUL TCDD exposure worsened T+E2-induced voiding dysfunction. Mice in the previous study were genetically prone to prostatic neoplasia and it was therefore unclear whether TCDD exacerbates voiding dysfunction through a malignant or non-malignant mechanism. We demonstrate here that IUL TCDD exposure acts via a non-malignant mechanism to exacerbate T+E2-mediated male mouse voiding dysfunction characterized by a progressive increase in spontaneous void spotting. We deployed a proteomic approach to narrow the possible mechanisms. We specifically tested whether IUL TCDD exacerbates urinary dysfunction by acting through the same prostatic signaling pathways as T+E2. The prostatic protein signature of TCDD/T+E2-exposed mice differed from that of mice exposed to T+E2 alone, indicating that the mechanism of action of TCDD differs from that of T+E2. We identified 3641 prostatic proteins in total and determined that IUL TCDD exposure significantly changed the abundance of 102 proteins linked to diverse molecular and physiological processes. We shed new light on the mechanism of IUL TCDD-mediated voiding dysfunction by demonstrating that the mechanism is independent of tumorigenesis and involves molecular pathways distinct from those affected by T+E2.
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Affiliation(s)
- Anne E Turco
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, WI, USA
- George M. O’Brien Center of Research Excellence, University of Wisconsin-MadisonMadison, WI, USA
| | - Samuel Thomas
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, WI, USA
- George M. O’Brien Center of Research Excellence, University of Wisconsin-MadisonMadison, WI, USA
- Department of Urology, University of Wisconsin-MadisonMadison, WI, USA
| | - LaTasha K Crawford
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, WI, USA
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin-MadisonMadison, WI, USA
| | - Richard E Peterson
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, WI, USA
- School of Pharmacy, University of Wisconsin-MadisonMadison, WI, USA
| | - Lingjun Li
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, WI, USA
- School of Pharmacy, University of Wisconsin-MadisonMadison, WI, USA
- Department of Chemistry, University of Wisconsin-MadisonMadison, WI, USA
| | - William A Ricke
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, WI, USA
- School of Pharmacy, University of Wisconsin-MadisonMadison, WI, USA
- George M. O’Brien Center of Research Excellence, University of Wisconsin-MadisonMadison, WI, USA
- Department of Urology, University of Wisconsin-MadisonMadison, WI, USA
| | - Chad M Vezina
- Molecular and Environmental Toxicology Center, University of Wisconsin-MadisonMadison, WI, USA
- School of Veterinary Medicine, University of Wisconsin-MadisonMadison, WI, USA
- George M. O’Brien Center of Research Excellence, University of Wisconsin-MadisonMadison, WI, USA
- Department of Urology, University of Wisconsin-MadisonMadison, WI, USA
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7
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Ruetten H, Wegner KA, Kennedy CL, Turco A, Zhang HL, Wang P, Sandhu J, Sandhu S, Morkrid J, Wang Z, Macoska J, Peterson RE, Bjorling DE, Ricke WA, Marker PC, Vezina CM. Impact of sex, androgens, and prostate size on C57BL/6J mouse urinary physiology: urethral histology. Am J Physiol Renal Physiol 2020; 318:F617-F627. [PMID: 31904290 DOI: 10.1152/ajprenal.00540.2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The National Institutes of Health leveled new focus on sex as a biological variable with the goal of understanding sex-specific differences in health and physiology. We previously published a functional assessment of the impact of sex, androgens, and prostate size on C57BL/6J mouse urinary physiology (Ruetten H, Wegner KA, Zhang HL, Wang P, Sandhu J, Sandhu S, Mueller B, Wang Z, Macoska J, Peterson RE, Bjorling DE, Ricke WA, Marker PC, Vezina CM. Am J Physiol Renal Physiol 317: F996-F1009, 2019). Here, we measured and compared five characteristics of urethral histology (urethral lumen diameter and area, epithelial cell count, epithelial and rhabdosphincter thickness, epithelial cell area, and total urethral area) in male and female 9-wk-old C57BL/6J mice using hematoxylin and eosin staining. We also compared male mice with castrated male mice, male and female mice treated with the steroid 5α-reductase inhibitor finasteride or testosterone, or male mice harboring alleles (Pbsn4cre/+; R26RDta/+) that reduce prostate lobe mass. The three methods used to reduce prostate mass (castration, finasteride, and Pbsn4cre/+; R26RDta/+) changed urethral histology, but none feminized male urethral histology (increased urethral epithelial area). Exogenous testosterone caused increased epithelial cell count in intact females but did not masculinize female urethral histology (decrease epithelial area). Our results lay a critical foundation for future studies as we begin to parse out the influence of hormones and cellular morphology on male and female urinary function.
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Affiliation(s)
- Hannah Ruetten
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Kyle A Wegner
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Conner L Kennedy
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Anne Turco
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Helen L Zhang
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Peiqing Wang
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Jaskiran Sandhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Simran Sandhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Jacquelyn Morkrid
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Zunyi Wang
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Jill Macoska
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, Massachusetts
| | - Richard E Peterson
- Division of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Dale E Bjorling
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - William A Ricke
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin.,Department of Urology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Paul C Marker
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Division of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Chad M Vezina
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
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8
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Wegner KA, Mueller BR, Unterberger CJ, Avila EJ, Ruetten H, Turco AE, Oakes SR, Girardi NM, Halberg RB, Swanson SM, Marker PC, Vezina CM. Prostate epithelial-specific expression of activated PI3K drives stromal collagen production and accumulation. J Pathol 2019; 250:231-242. [PMID: 31674011 DOI: 10.1002/path.5363] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/30/2019] [Accepted: 10/27/2019] [Indexed: 01/01/2023]
Abstract
We genetically engineered expression of an activated form of P110 alpha, the catalytic subunit of PI3K, in mouse prostate epithelium to create a mouse model of direct PI3K activation (Pbsn-cre4Prb;PI3KGOF/+ ). We hypothesized that direct activation would cause rapid neoplasia and cancer progression. Pbsn-cre4Prb;PI3KGOF/+ mice developed widespread prostate intraepithelial hyperplasia, but stromal invasion was limited and overall progression was slower than anticipated. However, the model produced profound and progressive stromal remodeling prior to explicit epithelial neoplasia. Increased stromal cellularity and inflammatory infiltrate were evident as early as 4 months of age and progressively increased through 12 months of age, the terminal endpoint of this study. Prostatic collagen density and phosphorylated SMAD2-positive prostatic stromal cells were expansive and accumulated with age, consistent with pro-fibrotic TGF-β pathway activation. Few reported mouse models accumulate prostate-specific collagen to the degree observed in Pbsn-cre4Prb;PI3KGOF/+ . Our results indicate a signaling process beginning with prostatic epithelial PI3K and TGF-β signaling that drives prostatic stromal hypertrophy and collagen accumulation. These mice afford a unique opportunity to explore molecular mechanisms of prostatic collagen accumulation that is relevant to cancer progression, metastasis, inflammation and urinary dysfunction. © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Kyle A Wegner
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, WI, USA.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, WI, USA.,Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Brett R Mueller
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, WI, USA.,Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Christopher J Unterberger
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, WI, USA.,School of Pharmacy, University of Wisconsin-Madison, Madison, WI, USA
| | - Enrique J Avila
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, WI, USA.,School of Pharmacy, University of Wisconsin-Madison, Madison, WI, USA
| | - Hannah Ruetten
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Anne E Turco
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, WI, USA.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, WI, USA.,Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Steven R Oakes
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA.,Department of Biomedical Engineering, College of Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Nicholas M Girardi
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Richard B Halberg
- Department of Oncology, McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, USA.,Division of Gastroenterology and Hepatology, Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Steven M Swanson
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI, USA
| | - Paul C Marker
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, WI, USA.,School of Pharmacy, University of Wisconsin-Madison, Madison, WI, USA
| | - Chad M Vezina
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, WI, USA.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, WI, USA.,Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA.,School of Pharmacy, University of Wisconsin-Madison, Madison, WI, USA
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9
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Ruetten H, Wegner KA, Zhang HL, Wang P, Sandhu J, Sandhu S, Mueller B, Wang Z, Macoska J, Peterson RE, Bjorling DE, Ricke WA, Marker PC, Vezina CM. Impact of sex, androgens, and prostate size on C57BL/6J mouse urinary physiology: functional assessment. Am J Physiol Renal Physiol 2019; 317:F996-F1009. [PMID: 31390231 DOI: 10.1152/ajprenal.00270.2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Laboratory mice are used to identify causes of urinary dysfunction including prostate-related mechanisms of lower urinary tract symptoms. Effective use of mice for this purpose requires a clear understanding of molecular, cellular, anatomic, and endocrine contributions to voiding function. Whether the prostate influences baseline voiding function has not been specifically evaluated, in part because most methods that alter prostate mass also change circulating testosterone concentrations. We performed void spot assay and cystometry to establish a multiparameter "baseline" of voiding function in intact male and female 9-wk-old (adult) C57BL/6J mice. We then compared voiding function in intact male mice to that of castrated male mice, male (and female) mice treated with the steroid 5α-reductase inhibitor finasteride, or male mice harboring alleles (Pbsn4cre/+; R26RDta/+) that significantly reduce prostate lobe mass by depleting prostatic luminal epithelial cells. We evaluated aging-related changes in male urinary voiding. We also treated intact male, castrate male, and female mice with exogenous testosterone to determine the influence of androgen on voiding function. The three methods used to reduce prostate mass (castration, finasteride, and Pbsn4cre/+; R26RDta/+) changed voiding function from baseline but in a nonuniform manner. Castration feminized some aspects of male urinary physiology (making them more like intact female mice) while exogenous testosterone masculinized some aspects of female urinary physiology (making them more like intact male mice). Our results provide evidence that circulating testosterone is responsible in part for baseline sex differences in C57BL/6J mouse voiding function while prostate lobe mass in young, healthy adult mice has a lesser influence.
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Affiliation(s)
- Hannah Ruetten
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Kyle A Wegner
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Helen L Zhang
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Peiqing Wang
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Center for Personalized Cancer Therapy, The University of Massachusetts Boston, Boston, Massachusetts
| | - Jaskiran Sandhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Simran Sandhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Brett Mueller
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Zunyi Wang
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Center for Personalized Cancer Therapy, The University of Massachusetts Boston, Boston, Massachusetts
| | - Jill Macoska
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Center for Personalized Cancer Therapy, The University of Massachusetts Boston, Boston, Massachusetts
| | - Richard E Peterson
- Division of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Dale E Bjorling
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - William A Ricke
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin.,Department of Urology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Paul C Marker
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Center for Personalized Cancer Therapy, The University of Massachusetts Boston, Boston, Massachusetts
| | - Chad M Vezina
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin.,University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
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10
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Fujii S, Yamashita S, Hayashi N, Goto T, Koyama J, Sato T, Shimada S, Kawasaki Y, Izumi H, Kawamorita N, Mitsuzuka K, Ito A, Arai Y. Phosphodiesterase type 5 inhibitor attenuates chronic ischemia-induced prostatic hyperplasia in a rat model. Prostate 2019; 79:536-543. [PMID: 30593704 DOI: 10.1002/pros.23759] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/05/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Many elderly men suffer from benign prostatic hyperplasia (BPH). Recently, chronic ischemia in the prostate has been suggested to be related to BPH. Thus, the impact of chronic ischemia on the development of prostatic hyperplasia and the efficacy of phosphodiesterase type 5 (PDE5) inhibitor for hyperplasia were evaluated in a rat model with chronic ischemia induced by local atherosclerosis. METHODS Eighteen male Sprague-Dawley rats were divided into three groups: sham operation, regular diet, placebo (SRP); arterial endothelial injury, high cholesterol diet, placebo (AHP); or arterial endothelial injury, high cholesterol diet, and tadalafil as a PDE5 inhibitor (AHT). The endothelial injury in the common iliac arteries was performed using a 2-Fr Fogarty arterial embolectomy catheter through an incision in the femoral artery into the common iliac artery. Diet and oral drugs were administrated for 8 weeks after surgery. At 8 weeks, blood flow to the ventral prostate (VP) was measured using laser speckle blood flow analysis, and the VP was histologically evaluated. RESULTS In the AHP group, prostatic blood flow was reduced, and mean VP weight and the interstitial area were significantly enlarged compared with the SRP group. In the AHT group, tadalafil administration obviously ameliorated the reduction of prostatic blood flow relative to the AHP group. Importantly, mean VP weight and the morphological changes in the AHT group were significantly smaller than those in the AHP group. CONCLUSIONS Enlargement of the VP resulted from chronic ischemia induced by local arteriosclerosis. Also, administration of tadalafil attenuated VP enlargement. Chronic ischemia in the prostate might thus contribute to the development of BPH, and PDE5 inhibitors might provide an innovative approach to preventing BPH.
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Affiliation(s)
- Shinji Fujii
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shinichi Yamashita
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Natsuho Hayashi
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuro Goto
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Juntaro Koyama
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuma Sato
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shuichi Shimada
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshihide Kawasaki
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hideaki Izumi
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoki Kawamorita
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Koji Mitsuzuka
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akihiro Ito
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoichi Arai
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
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