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Kyoda Y, Shibamori K, Shindo T, Maehana T, Hashimoto K, Kobayashi K, Tanaka T, Fukuta F, Masumori N. Intrinsic and extrinsic factors causing hyperplasia of the prostate. Int J Urol 2024; 31:705-717. [PMID: 38462732 DOI: 10.1111/iju.15446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 02/20/2024] [Indexed: 03/12/2024]
Abstract
Prostatic hyperplasia is very common in elderly men and is a typical disease that reduces quality of life. Histologically, hyperplasia of the prostate gland causes obstruction at the bladder outlet, resulting in symptoms such as a weak urine stream. Various factors have been considered to cause histological enlargement of the prostate, but the underlying cause is still unknown. The factors that cause prostate hyperplasia can be broadly classified into intrinsic and extrinsic ones. Extrinsic factors include things that we directly come into contact with such as bacteria and food. On the other hand, intrinsic factors are those that cause changes in functions originally provided in the body due to some cause, including extrinsic factors, such as chronic inflammation and an imbalance of sex hormones. A large number of reports have been made to date regarding the etiology of prostatic hyperplasia, although they have not yet clarified the fundamental cause(s). The various factors currently known should be outlined for future research. Should it be possible to prevent this highly prevalent prostatic hyperplasia which is mainly cause of dcreasing quality of life, there is no doubt that it would be a huge contribution to humanity.
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Affiliation(s)
- Yuki Kyoda
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kosuke Shibamori
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tetsuya Shindo
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takeshi Maehana
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kohei Hashimoto
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Ko Kobayashi
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Toshiaki Tanaka
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Fumimasa Fukuta
- Department of Urology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - Naoya Masumori
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
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2
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Tang X, Liu Z, Ren J, Cao Y, Xia S, Sun Z, Luo G. Comparative RNA-sequencing analysis of the prostate in a mouse model of benign prostatic hyperplasia with bladder outlet obstruction. Mol Cell Biochem 2023; 478:2721-2737. [PMID: 36920576 PMCID: PMC10628026 DOI: 10.1007/s11010-023-04695-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/27/2023] [Indexed: 03/16/2023]
Abstract
In ageing men, benign prostatic hyperplasia (BPH) is a chronic disease that leads to progressive lower urinary tract symptoms (LUTS) caused by obstruction of the bladder outlet (BOO). Patients with LUTS (such as increased frequency and urgency of urination) and complications of BOO (such as hydronephrosis and bladder stones) are at risk of serious health problems. BPH causes a rapidly rising burden of LUTS far exceeding that of other urological conditions. Treatment outcomes are unsatisfactory for BPH largely due to the lacking of fully understanding of the pathogenesis. Hormonal imbalances related to androgen and oestrogen can cause BPH, but the exact mechanism is still unknown, even the animal model is not fully understood. Additionally, there are no large-scale data to explain this mechanism. A BPH mouse model was established using mixed slow-release pellets of testosterone (T) and estradiol (E2), and we measured gene expression in mouse prostate tissue using RNA-seq, verified the results using qRT‒PCR, and used bioinformatics methods to analyse the differentially expressed genes (DEGs).
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Affiliation(s)
- Xiaohu Tang
- Medical College, Guizhou University, Guiyang, 550025, Guizhou, China
- Department of Urology Surgery, Guizhou Province People's Hospital, Guiyang, 550002, China
| | - Zhiyan Liu
- Guizhou Medical University, GuiyangGuizhou, 550025, China
| | - Jingwen Ren
- Guizhou Medical University, GuiyangGuizhou, 550025, China
| | - Ying Cao
- Medical College, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Shujie Xia
- Department of Urology Surgery, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, 201620, China
| | - Zhaolin Sun
- Medical College, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Guangheng Luo
- Department of Urology Surgery, Guizhou Province People's Hospital, Guiyang, 550002, China.
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3
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Liu Q, Shen Y, Xiong Y, Bai J, Zhang Y, Li C. Comparative Efficacy of AZD9496 and Fulvestrant on the Growth of Pituitary Adenoma via Blocking JAK2/STAT5B Pathway. J Cancer 2023; 14:61-71. [PMID: 36605480 PMCID: PMC9809331 DOI: 10.7150/jca.79726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 11/26/2022] [Indexed: 01/04/2023] Open
Abstract
Total 158 gonadotropin-type pituitary adenoma tissue specimens were collected and the expression of ESR1 in gonadotropin-type pituitary adenoma and its association with the overall survival of patients were analyzed. Transcriptome-sequencing data containing 79 cases of gonadotropin-type pituitary adenoma was used to search for all ESR1-related genes. KEGG pathway enrichment analysis was performed to identify the altering pathway and targeting genes. The in vitro and in vivo pituitary models were used to evaluate the therapeutic efficacy of estrogen receptor (ER) inhibitors AZD9496 and fulvestrant. The mechanism of AZD9496 and fulvestrant in suppressing pituitary adenoma were also investigated. Low-level ESR1 had longer progression-free survival (PFS) in pituitary adenoma patients. ErbB signaling pathway was discovered as the main enriched pathway. Furthermore, the STAT5B gene was identified as a key ESR-1-related gene. The expression of STAT5B was significantly positively correlated with ESR1 expression in the pituitary adenoma. AZD9496, a novel ER inhibitor, exhibited a potent inhibitory effect on the growth of in vitro and in vivo pituitary adenoma cells, and its efficacy is comparable to the classic ER inhibitor, fulvestrant. Mechanically, the AZD9496 and fulvestrant significantly blocked JAK2/STAT5B pathway in GT1-1 cells and xenograft mice. Our results provide substantial evidence for the subsequent clinical use of AZD9496 in the treatment of patients with pituitary adenoma.
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Affiliation(s)
- Qian Liu
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
| | - Yutao Shen
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
| | - Yujia Xiong
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
| | - Jiwei Bai
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China.,Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Yazhuo Zhang
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China.,Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China.,✉ Corresponding authors: Yazhuo Zhang, E-mail address: ; Chuzhong Li, E-mail address:
| | - Chuzhong Li
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China.,✉ Corresponding authors: Yazhuo Zhang, E-mail address: ; Chuzhong Li, E-mail address:
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4
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Evaluation of the Therapeutic Effect of the Traditional Herbal Medicine Atrifil and Oshagh Gum on Testosterone-Induced Benign Prostatic Hyperplasia in Wistar Rats. Adv Urol 2022; 2022:5742431. [PMID: 35847835 PMCID: PMC9277211 DOI: 10.1155/2022/5742431] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 04/20/2022] [Accepted: 06/14/2022] [Indexed: 11/17/2022] Open
Abstract
Benign prostatic hyperplasia (BPH) is a common disease that affects elderly men with various complications. This study evaluates the effects of an Iranian traditional herbal medicine “Atrifil and Oshagh gum” on BPH in male Wistar rats. Atrifil is a combination of three medicinal plants: Emblica officinalis Gaertn, Terminalia chebula Retz, and Terminalia bellerica Retz” extracts, and Oshagh gum is Dorema ammoniacum D. Dono gum. In this study, 30 male Wistar rats were divided into five groups: normal control, disease, finasteride, and extract with 300 and 600 mg/kg groups. The extract is a combination of hydroalcoholic Atrifil extract and Oshagh gum. All groups received intramuscular testosterone enanthate to induce BPH except the normal control group. On the twenty-eighth day, prostate glands were separated. Histopathological changes were observed. Furthermore, the prostate-specific antigen (PSA) and prostate weights were measured. The binding propensities of finasteride, equol, and flavonoids present in this extract such as quercetin, rutin, and kaempferol for 5α-reductase, estrogen receptor alpha and beta, and estrogen-related receptor gamma were assessed using in silico docking approach. Histopathological evaluation, biochemical parameter, and PSA level results indicated significant inhibition of accruing and progression of BPH in groups treated with 600 mg/kg extract (p < 0.01). Furthermore, molecular docking showed that rutin had a high affinity to bind the receptors 5α-reductase, estrogen receptor beta, and estrogen-related receptor gamma even more than finasteride, and on average, quercetin had a higher affinity to all these receptors. In the end, it can be concluded that Atrifil and Oshagh gum is effective in preventing BPH.
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Gangavarapu KJ, Jowdy PF, Foster BA, Huss WJ. Role of prostate stem cells and treatment strategies in benign prostate hyperplasia. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2022; 10:154-169. [PMID: 35874288 PMCID: PMC9301063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Benign prostate hyperplasia (BPH) is a progressive disease with a direct correlation between incidence and age. Since the treatment and management of BPH involve harmful side effects and decreased quality of life for the patient, the primary focus of research should be to find better and longer-lasting therapeutic options. The mechanisms regulating prostate stem cells in development can be exploited to decrease prostate growth. BPH is defined as the overgrowth of the prostate, and BPH is often diagnosed when lower urinary tract symptoms (LUTS) of urine storage or voiding symptoms cause patients to seek treatment. While multiple factors are involved in the hyperplastic growth of the stromal and epithelial compartments of the prostate, the clonal proliferation of stem cells is considered one of the main reasons for BPH initiation and regrowth of the prostate after therapies for BPH fail. Several theories explain possible reasons for the involvement of stem cells in the development, progression, and pathogenesis of BPH. The aim of the current review is to discuss current literature on the fundamentals of prostate development and the role of stem cells in BPH. This review examines the rationale for the hypothesis that unregulated stem cell properties can lead to BPH and therapeutic targeting of stem cells may reduce treatment-related side effects and prevent the regrowth of the prostate.
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Affiliation(s)
- Kalyan J Gangavarapu
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer CenterBuffalo, NY 14263, USA
| | - Peter F Jowdy
- Department of Dermatology, Roswell Park Comprehensive Cancer CenterBuffalo, NY 14263, USA
- Jacobs School of Medicine and Biomedical Sciences, University at BuffaloBuffalo, NY 14203, USA
| | - Barbara A Foster
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer CenterBuffalo, NY 14263, USA
| | - Wendy J Huss
- Department of Dermatology, Roswell Park Comprehensive Cancer CenterBuffalo, NY 14263, USA
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer CenterBuffalo, NY 14263, USA
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6
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Male Lower Urinary Tract Dysfunction: An Underrepresented Endpoint in Toxicology Research. TOXICS 2022; 10:toxics10020089. [PMID: 35202275 PMCID: PMC8880407 DOI: 10.3390/toxics10020089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 02/04/2023]
Abstract
Lower urinary tract dysfunction (LUTD) is nearly ubiquitous in men of advancing age and exerts substantial physical, mental, social, and financial costs to society. While a large body of research is focused on the molecular, genetic, and epigenetic underpinnings of the disease, little research has been dedicated to the influence of environmental chemicals on disease initiation, progression, or severity. Despite a few recent studies indicating a potential developmental origin of male LUTD linked to chemical exposures in the womb, it remains a grossly understudied endpoint in toxicology research. Therefore, we direct this review to toxicologists who are considering male LUTD as a new aspect of chemical toxicity studies. We focus on the LUTD disease process in men, as well as in the male mouse as a leading research model. To introduce the disease process, we describe the physiology of the male lower urinary tract and the cellular composition of lower urinary tract tissues. We discuss known and suspected mechanisms of male LUTD and examples of environmental chemicals acting through these mechanisms to contribute to LUTD. We also describe mouse models of LUTD and endpoints to diagnose, characterize, and quantify LUTD in men and mice.
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He K, Liu Y, Li D, Yu Q. Combination of transurethral resection of the prostate and flexible and rigid ureteroscopy for benign prostatic hyperplasia and ureteral calculus. Transl Androl Urol 2021; 10:3395-3401. [PMID: 34532264 PMCID: PMC8421826 DOI: 10.21037/tau-21-523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/06/2021] [Indexed: 11/06/2022] Open
Abstract
Background Combination of transurethral resection of the prostate (TURP) and flexible and rigid ureteroscopy (URS/RIRS) is a successful approach for patients with benign prostatic hyperplasia (BPH) and ureteral calculus (UC), and the sequence is URS/RIRS followed by TURP. This research aims to compare TURP followed by URS/RIRS with URS/RIRS followed by TURP in terms of clinical efficiency and safety. Methods From June 2009 to June 2021, 173 patients with BPH and upper urinary tract stones were recruited through the Harrison International Peace Hospital and were divided into intervention (TURP followed by URS/RIRS) and control groups (URS/RIRS followed by TURP). We collected demographic data, primary outcomes including urinary function, and secondary outcomes including surgical parameters and complications. SPSS 21.0 was used to analyze data. Results When comparing the surgical parameters, the intervention group showed better results than the control group regarding surgery time and length of hospitalization. When comparing urinary function and complications, there were no differences between the intervention and control groups. Conclusions Although the intervention of TURP followed by URS/RIRS had similar clinical effects compared with URS/RIRS followed by TURP in the control group; the intervention saves surgery time, and decreases the length of stay and medical costs. It may therefore be a good choice for patients with BPH and UC.
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Affiliation(s)
- Kunlun He
- Department of Urology Surgery, Hengshui People's Hospital, Hengshui, China
| | - Yan Liu
- Department of Urology Surgery, Hengshui People's Hospital, Hengshui, China
| | - Dong Li
- Department of Urology Surgery, Hengshui People's Hospital, Hengshui, China
| | - Qian Yu
- Department of Urology Surgery, Hengshui People's Hospital, Hengshui, China
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8
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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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Thomas S, Hao L, DeLaney K, McLean D, Steinke L, Marker PC, Vezina CM, Li L, Ricke WA. Spatiotemporal Proteomics Reveals the Molecular Consequences of Hormone Treatment in a Mouse Model of Lower Urinary Tract Dysfunction. J Proteome Res 2020; 19:1375-1382. [PMID: 32108482 DOI: 10.1021/acs.jproteome.9b00451] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Benign prostatic hyperplasia and related lower urinary tract symptoms remain common, costly, and impactful issues for aging males. The etiology and pathogenesis are multifactorial and include steroid hormone changes and inflammation. Noninvasive markers could one day inform personalized medicine, but interindividual variation and lack of healthy age-matched controls hamper research. Experimental models are appealing for insight into disease mechanisms. Here, we present a spatiotemporal proteomics study in a mouse model of hormone-induced urinary dysfunction. Urine samples were collected noninvasively across time: before, during, and after disease onset. A microcomputed tomography analysis implicated the prostate as a spatially relevant contributor to bladder outlet obstruction. Prostates were collected after disease onset and compared with control mice. Notable changes in urine include proteins representing oxidative stress defense and acute phase inflammatory response processes. In the prostate, hormone treatment led to perturbations related to an oxidative stress response and H2O2 metabolism. Several protein changes coincided in both urine and the prostate tissue, including glutathione peroxidase 3, glutathione hydrolase 1 proenzyme, and vitamin D-binding protein. This study supports the concept of noninvasive urinary biomarkers for prostate disease diagnostics. Oxidative stress and acute phase inflammatory processes were identified as key consequences of hormone-induced bladder outlet obstruction. Future research into antioxidants and anti-inflammatories in prostate diseases appears promising.
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Affiliation(s)
- Samuel Thomas
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Ling Hao
- School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Kellen DeLaney
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Dalton McLean
- Department of Urology, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Laura Steinke
- School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Paul C Marker
- School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Chad M Vezina
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,George M. O'Brien Center of Research Excellence, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Lingjun Li
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - William A Ricke
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Department of Urology, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,George M. O'Brien Center of Research Excellence, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
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10
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Xu D, Wu Y, Shen H, Qian S, Qi J. High serum concentration of estradiol may be a risk factor of prostate enlargement in aging male in China. Aging Male 2020; 23:1-6. [PMID: 29912660 DOI: 10.1080/13685538.2018.1481027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Objective: Assess the association between serum sex hormone level and prostate volume in men with benign prostatic hyperplasia (BPH).Material and methods: The study involved 239 BPH patients from January 2013 to June 2015 in our hospital. Each patient collected age, medical history, height, weight, body mass index, as well as a full examination of sex hormones, and transrectal ultrasound results.Results: Estradiol (E2) was significantly associated with prostate volume (r = 0.151, p = .02) and transitional zone volume (r = 0.136, p = .035). The association was more significant after adjusting age and BMI (r = 0.253 and 0.250, p <.001). Patients were divided into two groups according to prostate volume and E2, respectively. E2 in patients with prostate volume ≤50 ml was significantly lower than those with prostate volume >50 ml. Prostate volume, transitional zone volume and age were all significantly higher in the patients with E2 ≥ 160 umol/l than those in the patients with E2 < 160 umol/l. Through logistics regression, E2 (p = .012, OR = 1.004) are the only independent risk factor for prostate volume.Conclusions: E2 is significantly associated with prostate volume. High concentrations of E2 may be a risk factor for the large volume of prostate.
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Affiliation(s)
- Ding Xu
- Department of Urology, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Wu
- Department of Urology, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haibo Shen
- Department of Ultrasound, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Subo Qian
- Department of Urology, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Qi
- Department of Urology, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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11
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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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12
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Baek JM, Kim HJ, Nam MW, Park HJ, Yeon SH, Oh MH, Yoon JS, Kwon HJ, Lee KP, Lim JH. Standardized Seed Extract of Quisqualis indica (HU-033) Attenuates Testosterone Propionate-Induced Benign Prostatic Hyperplasia via α1-Adrenergic Receptors and Androgen/Estrogen Signaling. Prev Nutr Food Sci 2019; 24:492-497. [PMID: 31915646 PMCID: PMC6941726 DOI: 10.3746/pnf.2019.24.4.492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/11/2019] [Indexed: 11/06/2022] Open
Abstract
Benign prostatic hyperplasia (BPH) is an age-related disease characterized by prostatic enlargement and is the most common urologic symptoms in elderly men 60 years of age and older. Previously, we documented that 70% ethanol (EtOH) seed extract of Quisqualis indica (QI) attenuates pathological condition of testosterone propionate (TP)-induced BPH rat model via modulation of proliferation and apoptosis of prostate cells. Based on this potential of QI, we produced standardized seed extract of QI (HU-033) in order to prove further mechanisms. In this study, we aimed to suggest further mechanisms underlying the relationship between BPH and HU-033. Through not only cellular and nuclear receptor functional assays, but TP-mediated BPH rat model treated with HU-033, we demonstrated that HU-033 exerted antagonist effect on α1A- and α1D-adrenergic receptors in vitro and inhibitory effect on protein expression of androgen receptor and estrogen receptor alpha in vivo. Taken together, these results suggest that HU-033 is a novel candidate for the management of BPH.
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Affiliation(s)
| | | | - Min Woo Nam
- HUONS Research Center, Gyeonggi 15588, Korea
| | | | | | | | - Ji Soo Yoon
- HUONS Research Center, Gyeonggi 15588, Korea
| | - Hyo Jung Kwon
- Department of Veterinary Pathology, Chungnam National University, Daejeon 34134, Korea
| | - Kyu Pil Lee
- Laboratory of Physiology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
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13
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Lee TG, Sanderson D, Doyle P, Li D, Wood RW. High-definition ultrasound characterization of acute cyclophosphamide-induced cystitis in the mouse. Investig Clin Urol 2019; 61:75-80. [PMID: 31942466 PMCID: PMC6946820 DOI: 10.4111/icu.2020.61.1.75] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/01/2019] [Indexed: 11/18/2022] Open
Abstract
Purpose To examine associations if any between changes in voiding function, hematuria, and bladder ultrasonography metrics in murine cyclophosphamide-induced chemical cystitis. Materials and Methods Cystitis was induced in 6 female mice by an intraperitoneal injection of cyclophosphamide (300 mg/kg). Voiding frequency, void volume, hematuria assessment, and ultrasonographic measurements of the bladder were obtained at baseline, days 1 to 5, and days 9, 11, and 13. Voiding was induced with preferred sweet drinking solution and voiding data collected using an automated data collection system in 135 minute sessions. Bladder wall thickness, lumen volume, and vascular Doppler were acquired using a high definition ultrasound system. Spearman's correlation was used to analyze the association between the voiding changes, hematuria, and ultrasound findings. Results Hematuria was present 24 hours after cyclophosphamide injection. All animals displayed increased bladder vascularity, bladder wall thickness, and void frequency that was associated with concurrent decreased total and average void volumes. Increased bladder wall vascularity was correlated with the presence of hematuria (r=0.59, p<0.01) and bladder wall thickness (r=0.79, p<0.01). Hematuria correlated with increased void frequency (r=0.34, p<0.01). Average void volume was negatively correlated with hematuria (r=−0.50, p<0.01) and frequency (r=−0.38, p<0.01). Conclusions High-definition ultrasound imaging permits in vivo monitoring of changes in bladder morphology associated with voiding function in relation to cyclophosphamide-induced cystitis. Ultrasound imaging of the bladder may assist in differential diagnosis of bladder dysfunction.
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Affiliation(s)
- Toy G Lee
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, TX, USA
| | - Derrick Sanderson
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, NY, USA
| | - Paula Doyle
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, NY, USA
| | - Dongmei Li
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, NY, USA
| | - Ronald W Wood
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, NY, USA
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14
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Cunha GR, Sinclair A, Ricke WA, Robboy SJ, Cao M, Baskin LS. Reproductive tract biology: Of mice and men. Differentiation 2019; 110:49-63. [PMID: 31622789 PMCID: PMC7339118 DOI: 10.1016/j.diff.2019.07.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/24/2019] [Accepted: 07/26/2019] [Indexed: 12/11/2022]
Abstract
The study of male and female reproductive tract development requires expertise in two separate disciplines, developmental biology and endocrinology. For ease of experimentation and economy, the mouse has been used extensively as a model for human development and pathogenesis, and for the most part similarities in developmental processes and hormone action provide ample justification for the relevance of mouse models for human reproductive tract development. Indeed, there are many examples describing the phenotype of human genetic disorders that have a reasonably comparable phenotype in mice, attesting to the congruence between mouse and human development. However, anatomic, developmental and endocrinologic differences exist between mice and humans that (1) must be appreciated and (2) considered with caution when extrapolating information between all animal models and humans. It is critical that the investigator be aware of both the similarities and differences in organogenesis and hormone action within male and female reproductive tracts so as to focus on those features of mouse models with clear relevance to human development/pathology. This review, written by a team with extensive expertise in the anatomy, developmental biology and endocrinology of both mouse and human urogenital tracts, focusses upon the significant human/mouse differences, and when appropriate voices a cautionary note regarding extrapolation of mouse models for understanding development of human male and female reproductive tracts.
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Affiliation(s)
- Gerald R Cunha
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA, 94143, USA; George M. O'Brien Center of Research Excellence, Department of Urology, University of Wisconsin, Madison, WI, 93705, USA; Department of Pathology, Duke University, Davison Building, Box 3712, Durham, NC, 27710, USA.
| | - Adriane Sinclair
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Will A Ricke
- George M. O'Brien Center of Research Excellence, Department of Urology, University of Wisconsin, Madison, WI, 93705, USA
| | - Stanley J Robboy
- Department of Pathology, Duke University, Davison Building, Box 3712, Durham, NC, 27710, USA
| | - Mei Cao
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Laurence S Baskin
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA, 94143, USA
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15
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Liu TT, Rodgers AC, Nicholson TM, Macoska JA, Marker PC, Vezina CM, Bjorling DE, Roldan-Alzate A, Hernando D, Lloyd GL, Hacker TA, Ricke WA. Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing. J Vis Exp 2019:10.3791/59802. [PMID: 31475976 PMCID: PMC7328372 DOI: 10.3791/59802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The incidence of clinical benign prostatic hyperplasia (BPH) and lower urinary tract symptoms (LUTS) is increasing due to the aging population, resulting in a significant economic and quality of life burden. Transgenic and other mouse models have been developed to recreate various aspects of this multifactorial disease; however, methods to accurately quantitate urinary dysfunction and the effectiveness of new therapeutic options are lacking. Here, we describe a method that can be used to measure bladder volume and detrusor wall thickness, urinary velocity, void volume and void duration, and urethral diameter. This would allow for the evaluation of disease progression and treatment efficacy over time. Mice were anesthetized with isoflurane, and the bladder was visualized by ultrasound. For non-contrast imaging, a 3D image was taken of the bladder to calculate volume and evaluate shape; the bladder wall thickness was measured from this image. For contrast-enhanced imaging, a catheter was placed through the dome of the bladder using a 27-gauge needle connected to a syringe by PE50 tubing. A bolus of 0.5 mL of contrast was infused into the bladder until a urination event occurred. Urethral diameter was determined at the point of the Doppler velocity sample window during the first voiding event. Velocity was measured for each subsequent event yielding a flow rate. In conclusion, high frequency ultrasound proved to be an effective method for assessing bladder and urethral measurements during urinary function in mice. This technique may be useful in the assessment of novel therapies for BPH/LUTS in an experimental setting.
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Affiliation(s)
- Teresa T Liu
- Department of Urology, University of Wisconsin-Madison; K12 Kure, University of Wisconsin-Madison
| | - Allison C Rodgers
- Cardiovascular Research Center, Department of Medicine, University of Wisconsin-Madison
| | | | - Jill A Macoska
- University of Massachusetts Boston; U54 George M. O'Brien Center, University of Wisconsin-Madison
| | - Paul C Marker
- U54 George M. O'Brien Center, University of Wisconsin-Madison; College of Pharmacy, University of Wisconsin-Madison
| | - Chad M Vezina
- U54 George M. O'Brien Center, University of Wisconsin-Madison; School of Veterinary Medicine, University of Wisconsin-Madison
| | - Dale E Bjorling
- U54 George M. O'Brien Center, University of Wisconsin-Madison; School of Veterinary Medicine, University of Wisconsin-Madison
| | - Alejandro Roldan-Alzate
- K12 Kure, University of Wisconsin-Madison; Department of Mechanical Engineering, University of Wisconsin-Madison; Department of Radiology, University of Wisconsin-Madison
| | - Diego Hernando
- Department of Radiology, University of Wisconsin-Madison; Department of Medical Physics, University of Wisconsin-Madison
| | | | - Timothy A Hacker
- Cardiovascular Research Center, Department of Medicine, University of Wisconsin-Madison
| | - William A Ricke
- Department of Urology, University of Wisconsin-Madison; U54 George M. O'Brien Center, University of Wisconsin-Madison;
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16
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Bhandari RK, Taylor JA, Sommerfeld-Sager J, Tillitt DE, Ricke WA, vom Saal FS. Estrogen receptor 1 expression and methylation of Esr1 promoter in mouse fetal prostate mesenchymal cells induced by gestational exposure to bisphenol A or ethinylestradiol. ENVIRONMENTAL EPIGENETICS 2019; 5:dvz012. [PMID: 31463084 PMCID: PMC6705189 DOI: 10.1093/eep/dvz012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/20/2019] [Accepted: 07/10/2019] [Indexed: 05/02/2023]
Abstract
Fetal/neonatal environmental estrogen exposures alter developmental programing of the prostate gland causing onset of diseases later in life. We have previously shown in vitro that exposures to 17β-estradiol (E2) and the endocrine disrupting chemical bisphenol A, at concentrations relevant to human exposure, cause an elevation of estrogen receptor α (Esr1) mRNA in primary cultures of fetal mouse prostate mesenchymal cells; a similar result was observed in the fetal rat urogenital sinus. Effects of these chemicals on prostate mesenchyme in vivo are not well understood. Here we show effects in mice of fetal exposure to the estrogenic drug in mixed oral contraceptives, 17α-ethinylestradiol (EE2), at a concentration of EE2 encountered by human embryos/fetuses whose mothers become pregnant while on EE2-containing oral contraceptives, or bisphenol A at a concentration relevant to exposures observed in human fetuses in vivo. Expression of Esr1 was elevated by bisphenol A or EE2 exposures, which decreased the global expression of DNA methyltransferase 3A (Dnmt3a), while methylation of Esr1 promoter was significantly increased. These results show that exposures to the environmental estrogen bisphenol A and drug EE2 cause transcriptional and epigenetic alterations to expression of estrogen receptors in developing prostate mesenchyme in vivo.
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Affiliation(s)
- Ramji K Bhandari
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC, USA
- Division of Biological Sciences, University of Missouri, Columbia, MO, USA
- United States Geological Survey Columbia Environmental Research Center, Columbia, MO, USA
- Correspondence address. Department of Biology, University of North Carolina at Greensboro, 321 McIver Street, Greensboro, NC 27412, USA. Tel: +1-336-256-0493; Fax: +1-336-334-5839; E-mail:
| | - Julia A Taylor
- Division of Biological Sciences, University of Missouri, Columbia, MO, USA
| | | | - Donald E Tillitt
- United States Geological Survey Columbia Environmental Research Center, Columbia, MO, USA
| | - William A Ricke
- Department of Urology, Molecular Environmental Toxicology Program, George M. O’Brien Center of Research Excellence, University of Wisconsin, Madison, WI, USA
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17
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Wang Z, Guzman EC, Nimunkar A, Keil KP, Vezina CM, Ricke WA, Macoska J, Bjorling DE. Void sorcerer: an open source, open access framework for mouse uroflowmetry. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2019; 7:170-177. [PMID: 31317056 PMCID: PMC6627548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 05/30/2019] [Indexed: 06/10/2023]
Abstract
Observational and experimental studies of rodent voiding behaviors have greatly contributed to our understanding of lower urinary tract function including the complex social, environmental, and internal stimuli that affect voiding in health and models of disease. Void spot assays (VSA), cystometry (awake or anesthetized), and uroflowmetry are techniques commonly used in rodent models to assess voiding. Uroflowmetry is non-invasive and can be performed multiple times in the same freely moving animals and can be used to generate synchronized video corresponding to each void to characterize micturition patterns (e.g., droplets versus solid stream). However, approaches to evaluate uroflowmetry in rodent models vary widely across laboratories. Most importantly, an open access software to run these tests is not freely available (although complete systems are commercially available), limiting use of this important assay. We developed the Void Sorcerer, an uroflowmetry system for mice for reliable determination of frequency, voided volume, voiding duration, interval times between micturitions, and flow rate. This report provides a detailed description of how to build this system and includes open access software for developing uroflowmetry capability in their laboratories and improve upon it in a cost-effective manner. Our goals are to improve access, increase reproducibility among laboratories, and facilitate standardizing testing procedures.
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Affiliation(s)
- Zunyi Wang
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-MadisonMadison, WI, USA
| | - Emmanuel Contreras Guzman
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin-MadisonMadison, WI, USA
| | - Amit Nimunkar
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin-MadisonMadison, WI, USA
| | - Kimberly P Keil
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California-DavisDavis, CA, USA
| | - Chad M Vezina
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-MadisonMadison, WI, USA
| | - William A Ricke
- Department of Urology, School of Medicine and Public Health, University of Wisconsin-MadisonMadison, WI, USA
| | - Jill Macoska
- Center for Personalized Cancer Therapy, University of Massachusetts-BostonBoston, MA, USA
| | - Dale E Bjorling
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-MadisonMadison, WI, USA
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18
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Sen A, Iyer J, Boddu S, Kaul A, Kaul R. Estrogen receptor alpha differentially modulates host immunity in the bladder and kidney in response to urinary tract infection. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2019; 7:110-122. [PMID: 31317051 PMCID: PMC6627544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 06/10/2019] [Indexed: 06/10/2023]
Abstract
The protective role of endogenous estrogen against Urinary Tract Infection (UTI) is well recognized, but the involvement of estrogen receptors (ERs) in modulating immunity in the urinary tract during UTI pathogenesis has not been investigated. The current study investigates the role of ERα in modulating immune responses and UTI outcome. Mice were pre-treated with either ERα agonist, propyl-pyrazole-triol (PPT), or ERα antagonist, methyl-piperidino-pyrazole (MPP), before experimental UTI. The UTI outcome was determined by checking the bacterial load, CD55 and TNFα expression in the bladder and kidney tissues. We observed opposite effects of PPT and MPP treatment on bacterial clearance in bladder versus kidney. PPT significantly reduced bacterial load (P < 0.05) only in the kidney, with minimal changes in CD55 and TNFα levels. In contrast, MPP showed remarkable bacterial clearance only in the bladder that corresponded with reduced CD55 and TNFα expression. MPP treatment in uninfected state induced a significant increase in TNFα production (P < 0.05) in the bladder, but not in the kidney. Our results suggest a protective role of ERα in the kidney. However, protection in the bladder may be mediated via other ER subtypes that may be involved in boosting the local immune responses. Drugs targeting specific ERs in bladder may serve as an adjunct treatment for boosting immune responses in the urogenital tract for efficient bacterial clearance.
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Affiliation(s)
- Ayantika Sen
- Department of Biochemistry and Microbiology, Oklahoma State University Center for Health SciencesTulsa, OK, USA
| | - Janaki Iyer
- Department of Biochemistry and Microbiology, Oklahoma State University Center for Health SciencesTulsa, OK, USA
- Current address: Department of Natural Sciences, Northeastern State UniversityTahlequah, OK, USA
| | - Shreyes Boddu
- Department of Biochemistry and Microbiology, Oklahoma State University Center for Health SciencesTulsa, OK, USA
| | - Anil Kaul
- Health Care Administration, Oklahoma State University Center for Health SciencesTulsa, OK, USA
| | - Rashmi Kaul
- Department of Biochemistry and Microbiology, Oklahoma State University Center for Health SciencesTulsa, OK, USA
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19
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Liu TT, Thomas S, Mclean DT, Roldan-Alzate A, Hernando D, Ricke EA, Ricke WA. Prostate enlargement and altered urinary function are part of the aging process. Aging (Albany NY) 2019; 11:2653-2669. [PMID: 31085797 PMCID: PMC6535061 DOI: 10.18632/aging.101938] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 04/24/2019] [Indexed: 02/06/2023]
Abstract
Prostate disease incidence, both benign and malignant, directly correlates with age. Men under 40 years of age are rarely diagnosed with benign or malignant prostate disease, while 90% of men over the age of 80 have histological evidence of benign disease (benign prostatic hyperplasia; BPH). Although rodent models have been invaluable in the study of disease progression and treatment efficacy, the effect of age is often not considered. In examining aged (24-month-old) mice, we observed changes within the lower urinary tract that is typically associated with lower urinary tract dysfunction (LUTD) similar to models of BPH. In this study, we identify LUTD using functional testing as well as various imaging technologies. We also characterize the histological differences within the lower urinary tract between young (2-month-old) and aged mice including proliferation, stromal remodeling, and collagen deposition. Additionally, we examined serum steroid hormone levels, as steroid changes drive LUTD in mice and are known to change with age. We conclude that, with age, changes in prostate function, consistent with LUTD, are a consequence. Therapeutic targeting of endocrine and prostatic factors including smooth muscle function, prostate growth and fibrosis are likely to reestablish normal urinary function.
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Affiliation(s)
- Teresa T. Liu
- Department of Urology, University of Wisconsin – Madison, Madison, WI 53705, USA
- K12 Kure, University of Wisconsin – Madison, Madison, WI 53706, USA
| | - Samuel Thomas
- Molecular and Environmental Toxicology, University of Wisconsin – Madison, Madison, WI 53706, USA
| | - Dalton T. Mclean
- Department of Urology, University of Wisconsin – Madison, Madison, WI 53705, USA
- Cancer Biology, University of Wisconsin – Madison, Madison, WI 53706, USA
| | - Alejandro Roldan-Alzate
- K12 Kure, University of Wisconsin – Madison, Madison, WI 53706, USA
- Department of Mechanical Engineering, University of Wisconsin – Madison, Madison, WI 53706, USA
- Department of Radiology, University of Wisconsin – Madison, Madison, WI 53705, USA
| | - Diego Hernando
- Department of Radiology, University of Wisconsin – Madison, Madison, WI 53705, USA
- Department of Medical Physics, University of Wisconsin – Madison, Madison, WI 53705, USA
| | - Emily A. Ricke
- Department of Urology, University of Wisconsin – Madison, Madison, WI 53705, USA
| | - William A. Ricke
- Department of Urology, University of Wisconsin – Madison, Madison, WI 53705, USA
- George M. O’Brien Center of Research Excellence, University of Wisconsin – Madison, Madison, WI 53705, USA
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20
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Cunha GR, Vezina CM, Isaacson D, Ricke WA, Timms BG, Cao M, Franco O, Baskin LS. Development of the human prostate. Differentiation 2018; 103:24-45. [PMID: 30224091 PMCID: PMC6234090 DOI: 10.1016/j.diff.2018.08.005] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/21/2018] [Accepted: 08/24/2018] [Indexed: 12/14/2022]
Abstract
This paper provides a detailed compilation of human prostatic development that includes human fetal prostatic gross anatomy, histology, and ontogeny of selected epithelial and mesenchymal differentiation markers and signaling molecules throughout the stages of human prostatic development: (a) pre-bud urogenital sinus (UGS), (b) emergence of solid prostatic epithelial buds from urogenital sinus epithelium (UGE), (c) bud elongation and branching, (d) canalization of the solid epithelial cords, (e) differentiation of luminal and basal epithelial cells, and (f) secretory cytodifferentiation. Additionally, we describe the use of xenografts to assess the actions of androgens and estrogens on human fetal prostatic development. In this regard, we report a new model of de novo DHT-induction of prostatic development from xenografts of human fetal female urethras, which emphasizes the utility of the xenograft approach for investigation of initiation of human prostatic development. These studies raise the possibility of molecular mechanistic studies on human prostatic development through the use of tissue recombinants composed of mutant mouse UGM combined with human fetal prostatic epithelium. Our compilation of human prostatic developmental processes is likely to advance our understanding of the pathogenesis of benign prostatic hyperplasia and prostate cancer as the neoformation of ductal-acinar architecture during normal development is shared during the pathogenesis of benign prostatic hyperplasia and prostate cancer.
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Affiliation(s)
- Gerald R Cunha
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA 94143, United States.
| | - Chad M Vezina
- School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, United States
| | - Dylan Isaacson
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA 94143, United States
| | - William A Ricke
- Department of Urology, University of Wisconsin, Madison, WI 53705, United States
| | - Barry G Timms
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD 57069, United States
| | - Mei Cao
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA 94143, United States
| | - Omar Franco
- Department of Surgery, North Shore University Health System, 1001 University Place, Evanston, IL 60201, United States
| | - Laurence S Baskin
- Department of Urology, University of California, 400 Parnassus Avenue, San Francisco, CA 94143, United States
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21
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Hill WG, Zeidel ML, Bjorling DE, Vezina CM. Void spot assay: recommendations on the use of a simple micturition assay for mice. Am J Physiol Renal Physiol 2018; 315:F1422-F1429. [PMID: 30156116 DOI: 10.1152/ajprenal.00350.2018] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Investigators have for decades used mouse voiding patterns as end points for studying behavioral biology. It is only recently that mouse voiding patterns were adopted for study of lower urinary tract physiology. The spontaneous void spot assay (VSA), a popular micturition assessment tool, involves placing a mouse in an enclosure lined by filter paper and quantifying the resulting urine spot pattern. The VSA has advantages of being inexpensive and noninvasive, but some investigators challenge its ability to distinguish lower urinary tract function from behavioral voiding. A consensus group of investigators who regularly use the VSA was established by the National Institutes of Health in 2015 to address the strengths and weaknesses of the assay, determine whether it can be standardized across laboratories, and determine whether it can be used as a surrogate for evaluating urinary function. Here we leverage experience from the consensus group to review the history of the VSA and its uses, summarize experiments to optimize assay design for urinary physiology assessment, and make best practice recommendations for performing the assay and analyzing its results.
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Affiliation(s)
- Warren G Hill
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School , Boston, Massachusetts
| | - Mark L Zeidel
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School , Boston, Massachusetts
| | - Dale E Bjorling
- Department of Surgical Sciences, University of Wisconsin-Madison , Madison, Wisconsin.,University of Wisconsin-Madison/University of Massachusetts-Boston, George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin and Boston, Massachusetts
| | - Chad M Vezina
- University of Wisconsin-Madison/University of Massachusetts-Boston, George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin and Boston, Massachusetts.,Department of Comparative Biosciences, University of Wisconsin-Madison , Madison, Wisconsin
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22
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Wegner KA, Abler LL, Oakes SR, Mehta GS, Ritter KE, Hill WG, Zwaans BM, Lamb LE, Wang Z, Bjorling DE, Ricke WA, Macoska J, Marker PC, Southard-Smith EM, Eliceiri KW, Vezina CM. Void spot assay procedural optimization and software for rapid and objective quantification of rodent voiding function, including overlapping urine spots. Am J Physiol Renal Physiol 2018; 315:F1067-F1080. [PMID: 29972322 DOI: 10.1152/ajprenal.00245.2018] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Mouse urinary behavior is quantifiable and is used to pinpoint mechanisms of voiding dysfunction and evaluate potential human therapies. Approaches to evaluate mouse urinary function vary widely among laboratories, however, complicating cross-study comparisons. Here, we describe development and multi-institutional validation of a new tool for objective, consistent, and rapid analysis of mouse void spot assay (VSA) data. Void Whizzard is a freely available software plugin for FIJI (a distribution of ImageJ) that facilitates VSA image batch processing and data extraction. We describe its features, demonstrate them by evaluating how specific VSA method parameters influence voiding behavior, and establish Void Whizzard as an expedited method for VSA analysis. This study includes control and obese diabetic mice as models of urinary dysfunction to increase rigor and ensure relevance across distinct voiding patterns. In particular, we show that Void Whizzard is an effective tool for quantifying nonconcentric overlapping void spots, which commonly confound analyses. We also show that mouse genetics are consistently more influential than assay design parameters when it comes to VSA outcomes. None of the following procedural modifications to reduce overlapping spots masked these genetic-related differences: reduction of VSA testing duration, water access during the assay period, placement of a wire mesh cage bottom on top of or elevated over the filter paper, treatment of mesh with a hydrophobic spray, and size of wire mesh opening. The Void Whizzard software and rigorous validation of VSA methodological parameters described here advance the goal of standardizing mouse urinary phenotyping for comprehensive urinary phenome analyses.
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Affiliation(s)
- Kyle A Wegner
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Molecular and Environmental Toxicology Center, University of Wisconsin-Madison , Madison, Wisconsin
| | - Lisa L Abler
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Department of Comparative Biosciences, University of Wisconsin-Madison , Madison, Wisconsin
| | - Steven R Oakes
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Department of Comparative Biosciences, University of Wisconsin-Madison , Madison, Wisconsin
| | - Guneet S Mehta
- Laboratory for Optical and Computational Instrumentation, University of Wisconsin-Madison , Madison, Wisconsin
| | - K Elaine Ritter
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Vanderbilt University , Nashville, Tennessee
| | - Warren G Hill
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School , Boston, Massachusetts
| | - Bernadette M Zwaans
- Department of Urology, Beaumont Health System, Royal Oak, Michigan.,Department of Surgical Sciences, University of Wisconsin-Madison , Madison, Wisconsin
| | - Laura E Lamb
- Department of Urology, Beaumont Health System, Royal Oak, Michigan.,Oakland University William Beaumont School of Medicine, Auburn Hills, Michigan
| | - Zunyi Wang
- Oakland University William Beaumont School of Medicine, Auburn Hills, Michigan
| | - Dale E Bjorling
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Department of Surgical Sciences, University of Wisconsin-Madison , Madison, Wisconsin
| | - William A Ricke
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Department of Urology, University of Wisconsin-Madison , Madison, Wisconsin
| | - Jill Macoska
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Department of Biology, University of Massachusetts Boston , Boston, Massachusetts
| | - Paul C Marker
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Division of Pharmaceutical Sciences, University of Wisconsin-Madison , Madison, Wisconsin
| | - E Michelle Southard-Smith
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University School of Medicine, Vanderbilt University , Nashville, Tennessee
| | - Kevin W Eliceiri
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Laboratory for Optical and Computational Instrumentation, University of Wisconsin-Madison , Madison, Wisconsin
| | - Chad M Vezina
- George M. O'Brien Center for Benign Urologic Research, University of Wisconsin-Madison, Wisconsin, and University of Massachusetts Boston, Massachusetts.,Department of Comparative Biosciences, University of Wisconsin-Madison , Madison, Wisconsin
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23
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Wang Z, Hu L, Salari K, Bechis SK, Ge R, Wu S, Rassoulian C, Pham J, Wu CL, Tabatabaei S, Strand DW, Olumi AF. Androgenic to oestrogenic switch in the human adult prostate gland is regulated by epigenetic silencing of steroid 5α-reductase 2. J Pathol 2017; 243:457-467. [PMID: 28940538 DOI: 10.1002/path.4985] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/19/2017] [Accepted: 09/10/2017] [Indexed: 12/25/2022]
Abstract
Benign prostatic hyperplasia is the most common proliferative abnormality of the prostate. All men experience some prostatic growth as they age, but the rate of growth varies among individuals. Steroid 5α-reductase 2 (SRD5A2) is a critical enzyme for prostatic development and growth. Previous work indicates that one-third of adult prostatic samples do not express SRD5A2, secondary to epigenetic modifications. Here we show that the level of oestradiol is dramatically elevated, concomitant with significant upregulation of oestrogen response genes, in prostatic samples with methylation at the SRD5A2 promoter. The phosphorylation of oestrogen receptor-α in prostatic stroma is upregulated when SRD5A2 expression is absent. We show that tumour necrosis factor (TNF)-α suppresses SRD5A2 mRNA and protein expression, and simultaneously promotes expression of aromatase, the enzyme responsible for conversion of testosterone to oestradiol. Concomitant suppression of SRD5A2 and treatment with TNF-α synergistically upregulate the aromatase levels. The data suggest that, in the absence of prostatic SRD5A2, there is an androgenic to oestrogenic switch. These findings have broad implications for choosing appropriate classes of medications for the management of benign and malignant prostatic diseases. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Zongwei Wang
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Libing Hu
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Department of Urology, Yan'an Affiliated hospital of Kunming Medical University, Yunnan, PR China
| | - Keyan Salari
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Seth K Bechis
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Rongbin Ge
- Department of Pathology, University of Massachusetts Medical Center, Worcester, MA, USA
| | - Shulin Wu
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Cyrus Rassoulian
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jonathan Pham
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Chin-Lee Wu
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Shahin Tabatabaei
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Douglas W Strand
- Department of Urology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Aria F Olumi
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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24
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McAuley EM, Mustafi D, Simons BW, Valek R, Zamora M, Markiewicz E, Lamperis S, Williams A, Roman BB, Vezina C, Karczmar G, Oto A, Vander Griend DJ. Magnetic Resonance Imaging and Molecular Characterization of a Hormone-Mediated Murine Model of Prostate Enlargement and Bladder Outlet Obstruction. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:2378-2387. [PMID: 28823870 PMCID: PMC5762949 DOI: 10.1016/j.ajpath.2017.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/04/2017] [Accepted: 07/26/2017] [Indexed: 01/25/2023]
Abstract
Urinary complications resulting from benign prostatic hyperplasia and bladder outlet obstruction continue to be a serious health problem. Novel animal model systems and imaging approaches are needed to understand the mechanisms of disease initiation, and to develop novel therapies for benign prostatic hyperplasia. Long-term administration of both estradiol and testosterone in mice can result in prostatic enlargement and recapitulate several clinical components of lower urinary tract symptoms. Herein, we use longitudinal magnetic resonance imaging and histological analyses to quantify changes in prostatic volume, urethral volume, and genitourinary vascularization over time in response to estradiol-induced prostatic enlargement. Our data demonstrate significant prostatic enlargement by 12 weeks after treatment, with no detectable immune infiltration by macrophages or T- or B-cell populations. Importantly, the percentage of cell death, as measured by terminal deoxynucleotidyl transferase dUTP nick-end labeling, was significantly decreased in the prostatic epithelium of treated animals as compared to controls. We found no significant change in prostate cell proliferation in treated mice when compared to controls. These studies highlight the utility of magnetic resonance imaging to quantify changes in prostatic and urethral volumes over time. In conjunction with histological analyses, this approach has the high potential to enable mechanistic studies of initiation and progression of clinically relevant lower urinary tract symptoms. In addition, this model is tractable for investigation and testing of therapeutic interventions to ameliorate or potentially reverse prostatic enlargement.
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Affiliation(s)
- Erin M McAuley
- Committee on Molecular Pathology and Molecular Medicine, The University of Chicago, Chicago, Illinois; Department of Comparative Biosciences, University of Wisconsin Madison School of Veterinary Medicine, Madison, Wisconsin
| | - Devkumar Mustafi
- Department of Radiology, The University of Chicago, Chicago, Illinois
| | - Brian W Simons
- Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Rebecca Valek
- Department of Radiology, The University of Chicago, Chicago, Illinois
| | - Marta Zamora
- Department of Radiology, The University of Chicago, Chicago, Illinois
| | - Erica Markiewicz
- Department of Radiology, The University of Chicago, Chicago, Illinois
| | - Sophia Lamperis
- Department of Surgery, Section of Urology, The University of Chicago, Chicago, Illinois
| | - Anthony Williams
- Department of Surgery, Section of Urology, The University of Chicago, Chicago, Illinois
| | - Brian B Roman
- Department of Radiology, The University of Chicago, Chicago, Illinois
| | - Chad Vezina
- Department of Comparative Biosciences, University of Wisconsin Madison School of Veterinary Medicine, Madison, Wisconsin
| | - Greg Karczmar
- Department of Radiology, The University of Chicago, Chicago, Illinois
| | - Aytekin Oto
- Department of Radiology, The University of Chicago, Chicago, Illinois
| | - Donald J Vander Griend
- Department of Surgery, Section of Urology, The University of Chicago, Chicago, Illinois.
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25
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Bhattar R, Yadav SS, Tomar V, Mittal A, Gangkak G, Mehta J. Role of oestrogen receptor-α and -β in bladder tissue of patients with a clinical diagnosis of benign prostatic hyperplasia. BJU Int 2017; 121:130-138. [DOI: 10.1111/bju.14022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Rohit Bhattar
- Department ofUrology and Renal Transplantation; SMS Medical College; Jaipur Rajasthan India
| | - Sher Singh Yadav
- Department ofUrology and Renal Transplantation; SMS Medical College; Jaipur Rajasthan India
| | - Vinay Tomar
- Department ofUrology and Renal Transplantation; SMS Medical College; Jaipur Rajasthan India
| | - Alka Mittal
- Department of Pathology; SMS Medical College; Jaipur Rajasthan India
| | - Goto Gangkak
- Department ofUrology and Renal Transplantation; SMS Medical College; Jaipur Rajasthan India
| | - Jayanti Mehta
- Department of Pathology; SMS Medical College; Jaipur Rajasthan India
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26
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Kaplan SA. Re: Do Baseline Estrogen and Testosterone Affect Lower Urinary Tract Symptoms (LUTS) Prior to or after Pharmacologic Treatment with Tadalafil? J Urol 2017; 198:183-184. [DOI: 10.1016/j.juro.2017.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Cooke PS, Nanjappa MK, Ko C, Prins GS, Hess RA. Estrogens in Male Physiology. Physiol Rev 2017; 97:995-1043. [PMID: 28539434 PMCID: PMC6151497 DOI: 10.1152/physrev.00018.2016] [Citation(s) in RCA: 263] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 01/06/2017] [Accepted: 01/17/2017] [Indexed: 02/06/2023] Open
Abstract
Estrogens have historically been associated with female reproduction, but work over the last two decades established that estrogens and their main nuclear receptors (ESR1 and ESR2) and G protein-coupled estrogen receptor (GPER) also regulate male reproductive and nonreproductive organs. 17β-Estradiol (E2) is measureable in blood of men and males of other species, but in rete testis fluids, E2 reaches concentrations normally found only in females and in some species nanomolar concentrations of estrone sulfate are found in semen. Aromatase, which converts androgens to estrogens, is expressed in Leydig cells, seminiferous epithelium, and other male organs. Early studies showed E2 binding in numerous male tissues, and ESR1 and ESR2 each show unique distributions and actions in males. Exogenous estrogen treatment produced male reproductive pathologies in laboratory animals and men, especially during development, and studies with transgenic mice with compromised estrogen signaling demonstrated an E2 role in normal male physiology. Efferent ductules and epididymal functions are dependent on estrogen signaling through ESR1, whose loss impaired ion transport and water reabsorption, resulting in abnormal sperm. Loss of ESR1 or aromatase also produces effects on nonreproductive targets such as brain, adipose, skeletal muscle, bone, cardiovascular, and immune tissues. Expression of GPER is extensive in male tracts, suggesting a possible role for E2 signaling through this receptor in male reproduction. Recent evidence also indicates that membrane ESR1 has critical roles in male reproduction. Thus estrogens are important physiological regulators in males, and future studies may reveal additional roles for estrogen signaling in various target tissues.
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Affiliation(s)
- Paul S Cooke
- Department of Physiological Sciences, University of Florida, Gainesville, Florida; Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois; Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Manjunatha K Nanjappa
- Department of Physiological Sciences, University of Florida, Gainesville, Florida; Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois; Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - CheMyong Ko
- Department of Physiological Sciences, University of Florida, Gainesville, Florida; Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois; Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Gail S Prins
- Department of Physiological Sciences, University of Florida, Gainesville, Florida; Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois; Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Rex A Hess
- Department of Physiological Sciences, University of Florida, Gainesville, Florida; Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois; Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
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28
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Gangkak G, Bhattar R, Mittal A, Yadav SS, Tomar V, Yadav A, Mehta J. Immunohistochemical analysis of estrogen receptors in prostate and clinical correlation in men with benign prostatic hyperplasia. Investig Clin Urol 2017; 58:117-126. [PMID: 28261681 PMCID: PMC5330371 DOI: 10.4111/icu.2017.58.2.117] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/27/2016] [Indexed: 11/18/2022] Open
Abstract
Purpose Estrogens act through interaction with 2 receptor subtypes, ER alpha (ERα) and ER beta (ERβ), in human prostate. The aim of the present study was to semiquantitatively assess the differential expression of ER subtypes in human benign prostatic hyperplasia (BPH) by use of immunocytochemistry (IHC) methods and to explore their relationship with various measures of BPH. Materials and Methods A total of 45 patients with BPH undergoing transurethral resection of the prostate and 22 patients with bladder cancer with normal prostate undergoing surveillance cystoscopy were studied as cases and controls, respectively. Quantitative immunolabeling of ER subtypes was scored by use of a semiquantitative scale. Also, correlations were assessed between ER levels in prostate and various measures of BPH. Results Overall, we found strong immunostaining for ERα in stroma and for ERβ in epithelium, respectively. The IHC score for ERα differed significantly between BPH patients and controls in both stroma (p≤0.001) and epithelium (p=0.008), respectively. The ERβ IHC score was also significantly higher in the epithelium of BPH patients (p=0.01). Also, we found a significant correlation between prostatic ER levels and various clinical measures of BPH. Conclusions ERs may play an important role in the pathogenesis of BPH.
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Affiliation(s)
- Goto Gangkak
- Department of Urology and Renal Transplantation, SMS Medical College & Attached Hospitals, Jaipur, India
| | - Rohit Bhattar
- Department of Urology and Renal Transplantation, SMS Medical College & Attached Hospitals, Jaipur, India
| | - Alka Mittal
- Department of Pathology, SMS Medical College & Attached Hospitals, Jaipur, India
| | - Sher Singh Yadav
- Department of Urology and Renal Transplantation, SMS Medical College & Attached Hospitals, Jaipur, India
| | - Vinay Tomar
- Department of Urology and Renal Transplantation, SMS Medical College & Attached Hospitals, Jaipur, India
| | - Ajay Yadav
- Department of Pathology, SMS Medical College & Attached Hospitals, Jaipur, India
| | - Jayanti Mehta
- Department of Pathology, SMS Medical College & Attached Hospitals, Jaipur, India
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29
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Zhang W, Zheng X, Wang Y, Xiao H. Vitamin D Deficiency as a Potential Marker of Benign Prostatic Hyperplasia. Urology 2016; 97:212-218. [DOI: 10.1016/j.urology.2016.03.070] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/05/2016] [Accepted: 03/17/2016] [Indexed: 11/17/2022]
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30
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Abstract
Benign prostatic hyperplasia (BPH) and associated lower urinary tract symptoms (LUTS) are common clinical problems in urology and affect the majority of men at some time during their lives. The development of BPH/LUTS is associated with an increased ratio of estrogen to androgen levels, and this ratio, when mimicked in a variety of animals, induces BPH and lower urinary tract dysfunction (LUTD). While the precise molecular etiology remains unclear, estrogens have been implicated in the development and maintenance of BPH. Numerous endogenous and exogenous estrogens exist in humans. These estrogens act via multiple estrogen receptors to promote or inhibit prostatic hyperplasia and other BPH-associated processes. The prostate is an estrogen target tissue, and estrogens directly and indirectly affect growth and differentiation of prostate. The precise role of estrogen action directly affecting prostate growth and differentiation in the context of BPH is an understudied area and remains to be elucidated. Estrogens and selective estrogen receptor modulators (SERMs) have been shown to promote or inhibit prostate proliferation illustrating their potential roles in the development of BPH as therapy. More work will be required to identify estrogen signaling pathways associated with LUTD in order to develop more efficacious drugs for BPH treatment and prevention.
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31
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Ricke WA, Lee CW, Clapper TR, Schneider AJ, Moore RW, Keil KP, Abler LL, Wynder JL, López Alvarado A, Beaubrun I, Vo J, Bauman TM, Ricke EA, Peterson RE, Vezina CM. In Utero and Lactational TCDD Exposure Increases Susceptibility to Lower Urinary Tract Dysfunction in Adulthood. Toxicol Sci 2016; 150:429-40. [PMID: 26865671 DOI: 10.1093/toxsci/kfw009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Benign prostatic hyperplasia, prostate cancer, and changes in the ratio of circulating testosterone and estradiol often occur concurrently in aging men and can lead to lower urinary tract (LUT) dysfunction. To explore the possibility of a fetal basis for the development of LUT dysfunction in adulthood, Tg(CMV-cre);Nkx3-1(+/-);Pten(fl/+) mice, which are genetically predisposed to prostate neoplasia, were exposedin uteroand during lactation to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD, 1 μg/kg po) or corn oil vehicle (5 ml/kg) after a single maternal dose on 13 days post coitus, and subsequently were aged without further manipulation, or at 8 weeks of age were exposed to exogenous 17 β-estradiol (2.5 mg) and testosterone (25 mg) (T+E2) via slow release subcutaneous implants.In uteroand lactational (IUL) TCDD exposure in the absence of exogenous hormone treatment reduced voiding pressure in adult mice, but otherwise had little effect on mouse LUT anatomy or function. By comparison, IUL TCDD exposure followed by exogenous hormone treatment increased relative kidney, bladder, dorsolateral prostate, and seminal vesicle weights, hydronephrosis incidence, and prostate epithelial cell proliferation, thickened prostate periductal smooth muscle, and altered prostate and bladder collagen fiber distribution. We propose a 2-hit model whereby IUL TCDD exposure sensitizes mice to exogenous-hormone-induced urinary tract dysfunction later in life.
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Affiliation(s)
- William A Ricke
- *Molecular and Environmental Toxicology Center; Department of Urology; University of Wisconsin Carbone Cancer Center; George M. O'Brien Benign Urology Center of Research Excellence
| | | | | | | | | | - Kimberly P Keil
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706
| | - Lisa L Abler
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706
| | | | | | | | - Jenny Vo
- *Molecular and Environmental Toxicology Center
| | | | | | - Richard E Peterson
- *Molecular and Environmental Toxicology Center; University of Wisconsin Carbone Cancer Center; School of Pharmacy; and
| | - Chad M Vezina
- *Molecular and Environmental Toxicology Center; Department of Urology; University of Wisconsin Carbone Cancer Center; George M. O'Brien Benign Urology Center of Research Excellence; School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706
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32
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Kathrins M, Doersch K, Nimeh T, Canto A, Niederberger C, Seftel A. The Relationship Between Testosterone-Replacement Therapy and Lower Urinary Tract Symptoms: A Systematic Review. Urology 2016; 88:22-32. [DOI: 10.1016/j.urology.2015.11.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 10/15/2015] [Accepted: 11/03/2015] [Indexed: 02/05/2023]
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33
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Which play a more important role in the development of large-sized prostates (≥80 ml), androgen receptors or oestrogen receptors? A comparative study. Int Urol Nephrol 2015; 48:325-33. [PMID: 26685888 DOI: 10.1007/s11255-015-1181-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 11/30/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To compare the expression levels of androgen receptor (AR), oestrogen receptor α (ERα)and oestrogen receptor β (ERβ) in human prostate with various degrees of benign hyperplasia. MATERIALS AND METHODS Forty-five BPH patients undergoing transurethral plasmakinetic resection of the prostate were divided into three 15-people groups of participants with small (<40 ml), medium (40-80 ml) and large (>80 ml) prostates. Patient blood samples were collected for measuring serum oestradiol (E2), total testosterone (TT), follicle-stimulating and luteinizing hormone by radioimmunoassay. Postoperative prostate specimens were collected to detect AR, ERα and ERβ expression by immunoblotting and immunohistochemical staining. RESULTS There were significantly lower serum E2 levels in the patients with large prostates compared to the patients with small prostates (P < 0.05) and medium prostates (P < 0.01). A high TT and E2 serum ratio was observed in patients with large-sized prostates (P < 0.05), but there were no obvious differences in the serum TT levels between the three groups. Prostate AR expression in patients with large- (P < 0.05) and medium-sized prostates (P < 0.01) was high compared to patients with small-sized prostates. Prostate ERα expression in patients with large prostates was low compared to patients with small- and medium-sized prostates (P < 0.01). The prostate ERβ expression did not differ between the three groups (P > 0.05). CONCLUSIONS Increased AR and decreased ERα expression in the prostate suggested that AR might be more important than ERα in stimulating prostate proliferation in patients with large-sized prostates. Patients with small- and large-sized prostates might require different management procedures involving selective oestrogen receptor modulators and selective androgen receptor modulators, respectively.
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34
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Egan KB, Miner MM, Suh M, McVary K, Ni X, Roehrborn CG, Wittert G, Wong DG, Rosen RC. Do baseline estrogen and testosterone affect lower urinary tract symptoms (LUTS) prior to or after pharmacologic treatment with tadalafil? Andrology 2015; 3:1165-72. [PMID: 26452447 DOI: 10.1111/andr.12114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/20/2015] [Accepted: 08/28/2015] [Indexed: 11/26/2022]
Abstract
Little is known about how total testosterone and estradiol-17β influence lower urinary tract symptoms (LUTS) in men with benign prostatic hypertrophy (BPH). We analyzed data from a subset of men aged ≥18 years randomized to tadalafil 5 mg once-daily or placebo who had ≥6 month history of LUTS and an International Prostate Symptom Score (IPSS)≥13 enrolled in one of three randomized, placebo-controlled tadalafil clinical trials (N = 958). Three specific aims were addressed, as follows: (i) To characterize enrolled men by treatment randomization and testosterone level; (ii) to assess cross-sectional associations of estradiol-17β, testosterone, and LUTS prior to treatment with tadalafil; and, (iii) to assess longitudinal associations between baseline estradiol-17β and testosterone and improvements or worsening of LUTS during a 12-week period of tadalafil or placebo administration. LUTS were assessed by total IPSS, IPSS voiding sub-score (IPSS-V) and IPSS storage sub-score (IPSS-S) for cross-sectional analyses, and change in total IPSS (ΔIPSS), ΔIPSS-V, and ΔIPSS-S between baseline and 12-week visit for longitudinal analyses. Correlation analyses and linear regression examined associations. Baseline testosterone was not significantly associated with IPSS. In contrast, estradiol-17β was inversely correlated with IPSS (r = -0.08; p < 0.05) and IPSS-S (r = -0.14; p < 0.05). Tadalafil treatment resulted in greater IPSS improvements in men with lower baseline estradiol-17β versus those with higher baseline estradiol-17β. Lower baseline estradiol-17β was significantly associated with modestly improved ΔIPSS-V (p = 0.04) and Δtotal IPSS (p = 0.05) but not with ΔIPSS-S, following treatment which may substantiate the role of bladder dysfunction because of nerve and smooth muscle changes in the bladder in addition to benign prostatic enlargement in LUTS. Circulating baseline testosterone did not predict ΔIPSS. Men with lower baseline estradiol-17β levels showed greater responsiveness to tadalafil 5 mg treatment than those with higher baseline estradiol-17β levels when responsiveness was measured using total IPSS and IPSS-V.
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Affiliation(s)
- K B Egan
- New England Research Institutes, Inc., Watertown, MA, USA
| | - M M Miner
- Men's Health Center, The Miriam Hospital, Providence, RI, USA
| | - M Suh
- New England Research Institutes, Inc., Watertown, MA, USA
| | - K McVary
- Division of Urology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - X Ni
- Global Statistical Sciences and Advanced Analytics, Eli Lilly and Company, Indianapolis, IN, USA
| | - C G Roehrborn
- Department of Urology, University of Texas Southwestern Medical Center, Indianapolis, IN, USA
| | - G Wittert
- Freemasons Foundation Centre for Men's Health, School of Medicine, University of Adelaide, Adelaide, Australia
| | - D G Wong
- Eli Lilly and Company, Indianapolis, IN, USA
| | - R C Rosen
- New England Research Institutes, Inc., Watertown, MA, USA
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Keil KP, Abler LL, Altmann HM, Wang Z, Wang P, Ricke WA, Bjorling DE, Vezina CM. Impact of a folic acid-enriched diet on urinary tract function in mice treated with testosterone and estradiol. Am J Physiol Renal Physiol 2015; 308:F1431-43. [PMID: 25855514 DOI: 10.1152/ajprenal.00674.2014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 04/02/2015] [Indexed: 01/21/2023] Open
Abstract
Aging men are susceptible to developing lower urinary tract symptoms, but the underlying etiology is unknown and the influence of dietary and environmental factors on them is unclear. We tested whether a folic acid-enriched diet changed urinary tract physiology and biology in control male mice and male mice with urinary dysfunction induced by exogenous testosterone and estradiol (T+E2), which mimics changing hormone levels in aging humans. T+E2 treatment increased mouse urine output, time between voiding events, and bladder capacity and compliance. Consumption of a folic acid-enriched diet moderated these changes without decreasing prostate wet weight or threshold voiding pressure. One potential mechanism for these changes involves water balance. T+E2 treatment increases plasma concentrations of anti-diuretic hormone, which is offset at least in part by a folic acid-enriched diet. Another potential mechanism involves neural control of micturition. The folic acid-enriched diet, fed to T+E2-treated mice, increased voiding frequency in response to intravesicular capsaicin infusion and increased mRNA abundance of the capsaicin-sensitive cation channel transient receptor potential vanilloid subfamily member 1 (Trpv1) in L6 and S1 dorsal root ganglia (DRG) neurons. T+E2 treatment and a folic acid-enriched diet also modified DNA methylation, which is capable of altering gene expression. We found the enriched diet increased global DNA methylation in dorsal and ventral prostate and L6 and S1 DRG. Our results are consistent with folic acid acting to slow or reverse T+E2-mediated alteration in urinary function in part by normalizing water balance and enhancing or preserving afferent neuronal function.
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Affiliation(s)
- Kimberly P Keil
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Lisa L Abler
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Helene M Altmann
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Zunyi Wang
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Peiqing Wang
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - William A Ricke
- Department of Urology, University of Wisconsin-Madison, Madison, Wisconsin; Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin; and George M. O'Brien Center of Benign Urology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Dale E Bjorling
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin; Department of Urology, University of Wisconsin-Madison, Madison, Wisconsin; George M. O'Brien Center of Benign Urology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Chad M Vezina
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin; Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin; and George M. O'Brien Center of Benign Urology, University of Wisconsin-Madison, Madison, Wisconsin
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36
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Andersson KE. This Month in Investigative Urology. J Urol 2015. [DOI: 10.1016/j.juro.2014.11.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Keil KP, Abler LL, Altmann HM, Bushman W, Marker PC, Li L, Ricke WA, Bjorling DE, Vezina CM. Influence of animal husbandry practices on void spot assay outcomes in C57BL/6J male mice. Neurourol Urodyn 2014; 35:192-8. [PMID: 25394276 DOI: 10.1002/nau.22692] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AIMS Mice are increasingly being used as models to investigate aspects of urinary dysfunction that humans with lower urinary tract symptoms (LUTS) experience. One method used to examine voiding function is the spontaneous void spot assay. The purpose of this study was to characterize and identify animal husbandry conditions that might confound results of the spontaneous void spot assay in male C57Bl/6J mice. METHODS Mice were placed in cages lined with filter paper for 4 hr and urine was visualized with UV transillumination. Voiding parameters including urine spot number, spot size, total urine area, primary void area, corner and center voiding were quantified. RESULTS Adult male mice void more frequently with advancing age and a subpopulation (5-10%) display a frequent spotting pattern at 6-9 weeks of age. Voiding was not significantly different in male mice weaned to group housing (4-6 per cage) versus single housing, and was not altered when they were used as breeders. Voiding was changed upon transferring group housed adult males to single density cages, which decreased total urine area. Repeated assays of male voiding behavior over three consecutive days increased primary void area by the third day of monitoring and revealed that voiding behavior is impacted by routine cage changes and time of day. CONCLUSIONS Together these results identify housing and husbandry practices that influence male voiding behaviors in the spontaneous void spot assay and will inform voiding behavior analyses conducted with male C57Bl/6J mice.
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Affiliation(s)
- Kimberly P Keil
- Department of Comparative Biosciences, University of Wisconsin, Madison, Wisconsin
| | - Lisa L Abler
- Department of Comparative Biosciences, University of Wisconsin, Madison, Wisconsin
| | - Helene M Altmann
- Department of Comparative Biosciences, University of Wisconsin, Madison, Wisconsin
| | - Wade Bushman
- Department of Urology, University of Wisconsin, Madison, Wisconsin.,Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin
| | - Paul C Marker
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, Wisconsin
| | - Lingjun Li
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, Wisconsin
| | - William A Ricke
- Department of Urology, University of Wisconsin, Madison, Wisconsin.,Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin
| | - Dale E Bjorling
- Department of Urology, University of Wisconsin, Madison, Wisconsin.,Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin
| | - Chad M Vezina
- Department of Comparative Biosciences, University of Wisconsin, Madison, Wisconsin
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