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Deng BL, Lin DX, Li ZP, Li K, Wei PY, Luo CC, Zhang MY, Zhou Q, Yang ZL, Chen Z. High Hydrostatic Pressure Exacerbates Bladder Fibrosis through Activating Piezo1. Curr Med Sci 2024; 44:718-725. [PMID: 38926331 DOI: 10.1007/s11596-024-2881-3] [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: 12/12/2023] [Accepted: 04/08/2024] [Indexed: 06/28/2024]
Abstract
OBJECTIVE Bladder outlet obstruction (BOO) results in significant fibrosis in the chronic stage and elevated bladder pressure. Piezo1 is a type of mechanosensitive (MS) channel that directly responds to mechanical stimuli. To identify new targets for intervention in the treatment of BOO-induced fibrosis, this study investigated the impact of high hydrostatic pressure (HHP) on Piezo1 activity and the progression of bladder fibrosis. METHODS Immunofluorescence staining was conducted to assess the protein abundance of Piezo1 in fibroblasts from obstructed rat bladders. Bladder fibroblasts were cultured under normal atmospheric conditions (0 cmH2O) or exposed to HHP (50 cmH2O or 100 cmH2O). Agonists or inhibitors of Piezo1, YAP1, and ROCK1 were used to determine the underlying mechanism. RESULTS The Piezo1 protein levels in fibroblasts from the obstructed bladder exhibited an elevation compared to the control group. HHP significantly promoted the expression of various pro-fibrotic factors and induced proliferation of fibroblasts. Additionally, the protein expression levels of Piezo1, YAP1, ROCK1 were elevated, and calcium influx was increased as the pressure increased. These effects were attenuated by the Piezo1 inhibitor Dooku1. The Piezo1 activator Yoda1 induced the expression of pro-fibrotic factors and the proliferation of fibroblasts, and elevated the protein levels of YAP1 and ROCK1 under normal atmospheric conditions in vitro. However, these effects could be partially inhibited by YAP1 or ROCK inhibitors. CONCLUSION The study suggests that HHP may exacerbate bladder fibrosis through activating Piezo1.
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Affiliation(s)
- Bo-Lang Deng
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dong-Xu Lin
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhi-Peng Li
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Kang Li
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Peng-Yu Wei
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chang-Cheng Luo
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Meng-Yang Zhang
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Quan Zhou
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zheng-Long Yang
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhong Chen
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Lv L, Li W, Guo D, Shi B, Li Y. Early Sacral Neuromodulation Prevented Detrusor Overactivity in Rats With Spinal Cord Injury. Neuromodulation 2024:S1094-7159(24)00629-9. [PMID: 39046393 DOI: 10.1016/j.neurom.2024.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/05/2024] [Accepted: 05/24/2024] [Indexed: 07/25/2024]
Abstract
OBJECTIVES Sacral neuromodulation (SNM) has been shown to alleviate bladder dysfunction in patients with overactive bladder and nonobstructive urinary retention. However, the therapeutic effect and mechanism of SNM in neurogenic bladder dysfunction are still not fully understood. Using a rat model of spinal cord injury (SCI), this study aims to investigate the therapeutic effect of early SNM in the bladder-areflexia phase on neurogenic bladder dysfunction and evaluate its possible mechanism. MATERIALS AND METHODS Basic physiological parameters such as body/bladder weight, blood pressure, and electrocardiogram results were measured to evaluate the safety of SNM. Enzyme-linked immunosorbent assays and quantitative real-time polymerase chain reaction were used to examine the expression of proinflammatory factors. Hematoxylin and eosin and Masson's trichrome staining were used to observe morphological changes, and cystometry was used to evaluate urodynamic changes after SNM treatment. Western blotting and immunofluorescence staining were used to measure the levels of transient receptor potential vanilloid 1 (TRPV1) and calcitonin gene-related peptide (CGRP) in the L6-S1 dorsal root ganglia (DRGs) and bladder. Capsaicin desensitization was used to investigate whether inhibiting TRPV1 could prevent detrusor overactivity in SCI rats. RESULTS Early SNM did not affect the body/bladder weight, heart rate, blood pressure, or the expression of proinflammatory cytokines (PGE2, IL-1, IL-2, IL-6, TGF-β, or TNF-α) in the bladders of SCI rats. Morphologically, early SNM prevented urothelial edema (p = 0.0248) but did not influence collagen/smooth muscle in the bladder. Compared with untreated rats with SCI, the rats treated with SNM exhibited increased bladder capacity (p = 0.0132) and voiding efficiency (p = 0.0179), and decreased nonvoiding contraction (NVC) frequency (p = 0.0240). The maximum pressure, basal pressure, postvoid residual, and NVC amplitude did not change significantly. After the SNM treatment, the expression of TRPV1 in the bladder and CGRP in L6-S1 DRGs weredecreased (L6, p = 0.0160; S1, p = 0.0024) in SCI rats. In capsaicin-desensitized SCI rats, urodynamic results showed an increase in bladder capacity (p = 0.0116) and voiding efficiency (p = 0.0048), and diminished NVC frequency (p = 0.0116), while other parameters did not change significantly. CONCLUSIONS Early SNM prevented urothelial edema morphologically and detrusor overactivity in SCI rats. Inhibition of TRPV1 in the bladder and DRGs may be one of the potential mechanisms for preventing detrusor overactivity by SNM.
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Affiliation(s)
- Linchen Lv
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China; Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China; University of Health and Rehabilitation Sciences, Qingdao, China
| | - Wenxian Li
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China; Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Dongyue Guo
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China; Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Benkang Shi
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China; Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China; University of Health and Rehabilitation Sciences, Qingdao, China.
| | - Yan Li
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China; Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China.
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Oliveira AL, de Oliveira MG, Mónica FZ, Antunes E. Methylglyoxal and Advanced Glycation End Products (AGEs): Targets for the Prevention and Treatment of Diabetes-Associated Bladder Dysfunction? Biomedicines 2024; 12:939. [PMID: 38790901 PMCID: PMC11118115 DOI: 10.3390/biomedicines12050939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 05/26/2024] Open
Abstract
Methylglyoxal (MGO) is a highly reactive α-dicarbonyl compound formed endogenously from 3-carbon glycolytic intermediates. Methylglyoxal accumulated in plasma and urine of hyperglycemic and diabetic individuals acts as a potent peptide glycation molecule, giving rise to advanced glycation end products (AGEs) like arginine-derived hydroimidazolone (MG-H1) and carboxyethyl-lysine (CEL). Methylglyoxal-derived AGEs exert their effects mostly via activation of RAGE, a cell surface receptor that initiates multiple intracellular signaling pathways, favoring a pro-oxidant environment through NADPH oxidase activation and generation of high levels of reactive oxygen species (ROS). Diabetic bladder dysfunction is a bothersome urological complication in patients with poorly controlled diabetes mellitus and may comprise overactive bladder, urge incontinence, poor emptying, dribbling, incomplete emptying of the bladder, and urinary retention. Preclinical models of type 1 and type 2 diabetes have further confirmed the relationship between diabetes and voiding dysfunction. Interestingly, healthy mice supplemented with MGO for prolonged periods exhibit in vivo and in vitro bladder dysfunction, which is accompanied by increased AGE formation and RAGE expression, as well as by ROS overproduction in bladder tissues. Drugs reported to scavenge MGO and to inactivate AGEs like metformin, polyphenols, and alagebrium (ALT-711) have shown favorable outcomes on bladder dysfunction in diabetic obese leptin-deficient and MGO-exposed mice. Therefore, MGO, AGEs, and RAGE levels may be critically involved in the pathogenesis of bladder dysfunction in diabetic individuals. However, there are no clinical trials designed to test drugs that selectively inhibit the MGO-AGEs-RAGE signaling, aiming to reduce the manifestations of diabetes-associated bladder dysfunction. This review summarizes the current literature on the role of MGO-AGEs-RAGE-ROS axis in diabetes-associated bladder dysfunction. Drugs that directly inactivate MGO and ameliorate bladder dysfunction are also reviewed here.
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Affiliation(s)
| | | | | | - Edson Antunes
- Department of Translational Medicine, Pharmacology Area, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13084-971, SP, Brazil; (A.L.O.); (M.G.d.O.); (F.Z.M.)
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Jiang S, Wang R, Liao J. The Role of Metformin in Overactive Bladder: More Studies Are Warranted. Urology 2024; 186:144-145. [PMID: 38369200 DOI: 10.1016/j.urology.2023.11.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 02/20/2024]
Affiliation(s)
- Shuying Jiang
- Department of Pharmacy, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Ruiqian Wang
- Chuanshan, Experimental Middle School, Hengyang, Hunan, China
| | - Jian Liao
- Department of Nephrology, Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing, China.
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El Khoury J, Hermieu N, Chesnel C, Xylinas E, Teng M, Ouzaid I, Hermieu JF, Amarenco G, Hentzen C. Primary bladder neck obstruction in men: The importance of urodynamic assessment and cystourethrography in measuring its severity. Neurourol Urodyn 2024; 43:874-882. [PMID: 38390751 DOI: 10.1002/nau.25429] [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: 09/25/2023] [Revised: 01/24/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024]
Abstract
OBJECTIVE Primary bladder neck obstruction (PBNO) is a condition primarily affecting young men, characterized by obstruction at the bladder neck, leading to lower urinary tract symptoms. The aim of this study was to identify a correlation between the severity of bladder neck opening impairment and urinary symptoms by means of urodynamic studies. MATERIALS AND METHODS A retrospective analysis was conducted in adult males diagnosed with PBNO at a university neurourology department between 2015 and 2022 who underwent voiding cystourethrography (VCUG) and pressure-flow studies. The cohort was divided into two groups: absence of bladder neck opening on VCUG (Group A) and incomplete bladder neck opening (Group B). RESULTS Out of the 82 patients with PBNO screened, 53 were included in the analysis. Nocturia was the only symptom more prevalent in Group A (65% in Group A vs. 30% in Group B, p = 0.02) but scores and subscores of the Urinary Symptom Profile questionnaire were not different between groups. In addition, the detrusor pressure at a maximum flow rate (PdetQmax), bladder outlet obstruction index (BOOI), and bladder contractility index (BCI) were higher in Group A than in Group B [PdetQmax (A = 93.7 ± 53.7 cmH2O vs. B = 65.7 ± 26.4 cmH2O; p = 0.01)-BOOI (A = 77 ± 58.3 vs. B = 48 ± 25.7; p = 0.03)-BCI (A = 136 ± 51.3 vs. B = 110 ± 41.7; p = 0.04)]. CONCLUSION This study demonstrates a significant association between the extent of bladder neck opening impairment observed on VCUG and obstruction and contraction urodynamic parameters, but no association with the severity of urinary symptoms. Future studies should evaluate the predictive value of treatment response and the occurrence of complications based on clinical and urodynamic parameters.
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Affiliation(s)
- Joey El Khoury
- Department of Urology, Bichat Claude Bernard Hospital, Paris, France
| | - Nicolas Hermieu
- Department of Urology, Bichat Claude Bernard Hospital, Paris, France
| | - Camille Chesnel
- Green Group of Clinical Research in Neuro-Urology, AP-HP, Tenon Hospital, Sorbonne University GRC 01, Paris, France
| | | | - Maëlys Teng
- Green Group of Clinical Research in Neuro-Urology, AP-HP, Tenon Hospital, Sorbonne University GRC 01, Paris, France
| | - Idir Ouzaid
- Department of Urology, Bichat Claude Bernard Hospital, Paris, France
| | | | - Gérard Amarenco
- Green Group of Clinical Research in Neuro-Urology, AP-HP, Tenon Hospital, Sorbonne University GRC 01, Paris, France
| | - Claire Hentzen
- Green Group of Clinical Research in Neuro-Urology, AP-HP, Tenon Hospital, Sorbonne University GRC 01, Paris, France
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Andersson KE. Promising therapeutic targets for the treatment of urine storage dysfunction: what's the status? Expert Opin Ther Targets 2024; 28:251-258. [PMID: 38629152 DOI: 10.1080/14728222.2024.2344698] [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: 11/19/2023] [Accepted: 04/15/2024] [Indexed: 04/22/2024]
Abstract
INTRODUCTION Opinions differ on what drugs have both a rationale and a development potential for the treatment of bladder storage dysfunction. AREAS COVERED In the present review, the focus is given to small molecule blockers of TRP channels (TRPV1, TRPV4, TRPA1, and TRPM8), P2 × 3receptor antagonists, drugs against oxidative stress, antifibrosis agents, cyclic nucleotide - dependent pathways, and MaxiK±channel - gene therapy. EXPERT OPINION TRPV1 channel blockers produce hypothermia which seems to be a problem even with the most efficacious second-generation TRPV1 antagonists. This has so far precluded their application to urine storage disorders. Other TRP channel blockers with promising rationale have yet to be tested on the human lower urinary tract. The P2 × 3receptor antagonist, eliapixant, was tested in a randomized controlled clinical trial, was well tolerated but did not meet clinical efficacy endpoints. Antifibrosis agent still await application to the human lower urinary tract. New drug principles for oxidative stress, purine nucleoside phosphorylase inhibition, and NOX inhibition are still at an experimental stage, and so are soluble guanylate cyclase stimulators. Gene therapy with MaxiK±channels is still an interesting approach but no new trials seem to be in pipeline.
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Affiliation(s)
- Karl-Erik Andersson
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA
- Department of Laboratory Medicine, Lund University, Lund, Sweden
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Neu S, Matta R, Locke JA, Troke N, Tadrous M, Saskin R, Rebullar K, Nam R, Herschorn S. The Use of Metformin in Overactive Bladder: A Retrospective Nested Case-control, Population-based Analysis. Urology 2024; 183:70-77. [PMID: 37805050 DOI: 10.1016/j.urology.2023.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/22/2023] [Accepted: 09/27/2023] [Indexed: 10/09/2023]
Abstract
OBJECTIVE To determine if metformin use is associated with a lower rate of overactive bladder (OAB) medication use. Metformin facilitates the proliferation and migration of stem cells, which have been shown to improve bladder overactivity in animal models. METHODS We conducted a retrospective nested case-control cohort study using population-based health-care administrative databases. Our cohort included patients with diabetes mellitus type 2 (DM2) ≥69years. Cases received a prescription for an OAB medication, matched with up to 4 controls based on age, sex, and DM2 diagnosis date. Exposure was a new prescription for metformin prior to receiving an OAB medication. Adjusted odds ratios were estimated using conditional logistic regression. Sensitivity analysis was done to assess the relationship between cumulative days' supply of metformin and use of OAB medications. RESULTS Within our cohort of 2,233,084 patients with DM2, there were 16,549 case subjects who received a prescription for an OAB medication, and 64,171 matched controls. We found a positive association between OAB medication use and metformin use (adjusted odds ratios=1.07, 95% CI=1.03-1.12). Summed days' supply of metformin was also associated with OAB medication use, except when summed metformin days was >2220. CONCLUSION Older patients with DM2 exposed to metformin had a slightly higher rate of OAB medication use, until 2220+ days' metformin supply, whereafter no association was found. This suggests no protective role for metformin in the prevention of OAB in this patient population.
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Affiliation(s)
- Sarah Neu
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
| | - Rano Matta
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Jennifer A Locke
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | | | - Mina Tadrous
- ICES, Toronto, Ontario, Canada; Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada; Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada
| | | | - Karla Rebullar
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Robert Nam
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Sender Herschorn
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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Zhang Z, Zhanghuang C, Mi T, Jin L, Liu J, Li M, Wu X, Wang J, Li M, Wang Z, Guo P, He D. The PI3K-AKT-mTOR signaling pathway mediates the cytoskeletal remodeling and epithelial-mesenchymal transition in bladder outlet obstruction. Heliyon 2023; 9:e21281. [PMID: 38027933 PMCID: PMC10663759 DOI: 10.1016/j.heliyon.2023.e21281] [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: 11/15/2022] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Objective Partial bladder outlet obstruction(pBOO) is the most common cause of lower urinary tract symptoms (LUTS) and significantly affects the quality of life. Long-term pBOO can cause changes in bladder structure and function, referred to as bladder remodeling. The pathogenesis of pBOO-induced bladder remodeling has yet to be fully understood, so effective treatment options are lacking. Our study aimed to explore how pBOO-induced bladder remodeling brings new strategies for treating pBOO. Methods A rat model of pBOO was established by partial ligation of the bladder neck, and the morphological changes and fibrosis changes in the bladder tissues were detected by H&E and Masson trichrome staining. Furthermore, EMT(epithelial-mesenchymal transition) related indicators and related pathway changes were further examined after TGF- β treatment of urothelial cells SV-HUC-1. Finally, the above indicators were tested again after using the PI3K inhibitor. Subsequently, RNA sequencing of bladder tissues to identify differential genes and related pathways enrichment and validated by immunofluorescence and western blotting analysis. Results The pBOO animal model was successfully established by partially ligating the bladder neck. H&E staining showed significant changes in the bladder structure, and Masson trichrome staining showed significantly increased collagen fibers. RNA sequencing results significantly enriched in the cytoskeleton, epithelial-mesenchymal transformation, and the PI3K-AKT-mTOR signaling pathway. Immunofluorescence and western blotting revealed EMT and cytoskeletal remodeling in SV-HUC-1 cells after induction of TGF- β and in the pBOO bladder tissues. The western blotting showed significant activation of the PI3K-AKT-mTOR signaling pathway in SV-HUC-1 cells after induction of TGF-β and in pBOO bladder tissues. Furthermore, EMT and cytoskeletal damage were partially reversed after PI3K pathway inhibition using PI3K inhibitors. Conclusions In the pBOO rat model, the activation of the PI3K-AKT-mTOR signaling pathway can mediate the cytoskeletal remodeling and the EMT to induce fibrosis in the bladder tissues. PI3K inhibitors partially reversed EMT and cytoskeletal damage.
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Affiliation(s)
- Zhaoxia Zhang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Chenghao Zhanghuang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
- Department of Urology, Children's Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650103, PR China
| | - Tao Mi
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Liming Jin
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Jiayan Liu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Maoxian Li
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Xin Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Jinkui Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Mujie Li
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Zhang Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
| | - Peng Guo
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
- Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, PR China
| | - Dawei He
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, 400014, PR China
- China International Science and Technology Cooperation Base of Child Development and Critical, National Clinical Research Center for Child Health and Disorders, Chongqing, PR China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, PR China
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Huang J, Li H, Zhang Y, Liu J, Cao H, Long Y. Excitatory purinergic and cholinergic expression changed in a partial bladder outlet obstruction-induced overactive bladder rat model. Sci Rep 2023; 13:18395. [PMID: 37884550 PMCID: PMC10603080 DOI: 10.1038/s41598-023-45014-5] [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: 05/14/2023] [Accepted: 10/14/2023] [Indexed: 10/28/2023] Open
Abstract
Overactive bladder (OAB) is a common, long-term symptom complex with a high prevalence in women worldwide. OAB has caused a social burden, and effective treatments are urgently needed. However, the pathogenesis of OAB has yet to be elucidated. Model rats underwent bladder outlet obstruction surgery. In the 2nd, 3rd, and 4th weeks after surgery, metabolic cages were used to detect the 12 h urine volume of rats in the sham and model groups. The urodynamic parameters bladder leak point pressure (BPLL), maximum voiding pressure (MVP), residual volume (RV), maximum bladder capacity (MBC), bladder compliance (BC), voided efficiency (VE), and non-voiding contractions (NVCs) were also detected. Moreover, the contractile responses of isolated detrusor muscles to electrical and carbachol stimulation were examined at the abovementioned time points. At the 4th week after surgery, the bladders of both groups were obtained for hematoxylin-eosin (H&E) and Masson's trichrome staining. Real-time qPCR and Western blot were performed to quantify the expression of choline acetyltransferase (ChAT) and solute carrier family 17 member 9 (SLC17A9). At week 4, compared with the sham group, the 12 h urine volume of PBOO group increased significantly. The BLPP, MVP, VE, MBC, and NVCs increased significantly, and the VE was significantly reduced in 4-week PBOO group. The contractile responses of isolated detrusor muscles to electrical and carbachol stimulation significantly increased in 4-week PBOO group. In the 4-week PBOO group, the bladder wall and the ratio of bladder muscle to collagen within the bladder smooth muscle layer wall were significantly higher than those in the sham group. ChAT and SLC17A9 mRNA and protein expression in the OAB model rats significantly increased. At 4 weeks after PBOO, the OAB model was successfully established. The gene and protein expression levels of ChAT and SLC17A9 increased in the bladder of the OAB model, suggesting that OAB may be related to increased excitatory purinergic and cholinergic expression.
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Affiliation(s)
- Jingyi Huang
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Hongliang Li
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Yao Zhang
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Jiaye Liu
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Hongying Cao
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China.
| | - Yongling Long
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China.
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10
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Chueh KS, Lu JH, Juan TJ, Chuang SM, Juan YS. The Molecular Mechanism and Therapeutic Application of Autophagy for Urological Disease. Int J Mol Sci 2023; 24:14887. [PMID: 37834333 PMCID: PMC10573233 DOI: 10.3390/ijms241914887] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Autophagy is a lysosomal degradation process known as autophagic flux, involving the engulfment of damaged proteins and organelles by double-membrane autophagosomes. It comprises microautophagy, chaperone-mediated autophagy (CMA), and macroautophagy. Macroautophagy consists of three stages: induction, autophagosome formation, and autolysosome formation. Atg8-family proteins are valuable for tracking autophagic structures and have been widely utilized for monitoring autophagy. The conversion of LC3 to its lipidated form, LC3-II, served as an indicator of autophagy. Autophagy is implicated in human pathophysiology, such as neurodegeneration, cancer, and immune disorders. Moreover, autophagy impacts urological diseases, such as interstitial cystitis /bladder pain syndrome (IC/BPS), ketamine-induced ulcerative cystitis (KIC), chemotherapy-induced cystitis (CIC), radiation cystitis (RC), erectile dysfunction (ED), bladder outlet obstruction (BOO), prostate cancer, bladder cancer, renal cancer, testicular cancer, and penile cancer. Autophagy plays a dual role in the management of urologic diseases, and the identification of potential biomarkers associated with autophagy is a crucial step towards a deeper understanding of its role in these diseases. Methods for monitoring autophagy include TEM, Western blot, immunofluorescence, flow cytometry, and genetic tools. Autophagosome and autolysosome structures are discerned via TEM. Western blot, immunofluorescence, northern blot, and RT-PCR assess protein/mRNA levels. Luciferase assay tracks flux; GFP-LC3 transgenic mice aid study. Knockdown methods (miRNA and RNAi) offer insights. This article extensively examines autophagy's molecular mechanism, pharmacological regulation, and therapeutic application involvement in urological diseases.
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Affiliation(s)
- Kuang-Shun Chueh
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, San-min District, Kaohsiung 80708, Taiwan;
- Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 80145, Taiwan
- Department of Urology, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Jian-He Lu
- Center for Agricultural, Forestry, Fishery, Livestock and Aquaculture Carbon Emission Inventory and Emerging Compounds (CAFEC), General Research Service Center, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan;
| | - Tai-Jui Juan
- Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan;
- Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Shu-Mien Chuang
- Department of Urology, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Yung-Shun Juan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, San-min District, Kaohsiung 80708, Taiwan;
- Department of Urology, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
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11
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Zhao M, Ding N, Wang H, Zu S, Liu H, Wen J, Liu J, Ge N, Wang W, Zhang X. Activation of TRPA1 in Bladder Suburothelial Myofibroblasts Counteracts TGF-β1-Induced Fibrotic Changes. Int J Mol Sci 2023; 24:ijms24119501. [PMID: 37298451 DOI: 10.3390/ijms24119501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
The activation of the transient receptor potential ankyrin 1 (TRPA1) channel has anti-fibrotic effects in the lung and intestine. Suburothelial myofibroblasts (subu-MyoFBs), a specialized subset of fibroblasts in the bladder, are known to express TRPA1. However, the role of the TRPA1 in the development of bladder fibrosis remains elusive. In this study, we use the transforming growth factor-β1 (TGF-β1) to induce fibrotic changes in subu-MyoFBs and assess the consequences of TRPA1 activation utilizing RT-qPCR, western blotting, and immunocytochemistry. TGF-β1 stimulation increased α-SMA, collagen type I alpha 1 chain(col1A1), collagen type III (col III), and fibronectin expression, while simultaneously suppressing TRPA1 in cultured human subu-MyoFBs. The activation of TRPA1, with its specific agonist allylisothiocyanate (AITC), inhibited TGF-β1-induced fibrotic changes, and part of these inhibition effects could be reversed by the TRPA1 antagonist, HC030031, or by reducing TRPA1 expression via RNA interference. Furthermore, AITC reduced spinal cord injury-induced fibrotic bladder changes in a rat model. The increased expression of TGF-β1, α-SMA, col1A1 and col III, and fibronectin, and the downregulation of TRPA1, were also detected in the mucosa of fibrotic human bladders. These findings suggest that TRPA1 plays a pivotal role in bladder fibrosis, and the negative cross talk between TRPA1 and TGF-β1 signaling may represent one of the mechanisms underlying fibrotic bladder lesions.
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Affiliation(s)
- Mengmeng Zhao
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Ning Ding
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Haoyu Wang
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Shulu Zu
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Hanwen Liu
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Jiliang Wen
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Jiaxin Liu
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Nan Ge
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Wenzhen Wang
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Xiulin Zhang
- Department of Urology, The Second Hospital of Shandong University, Jinan 250033, China
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12
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Wang W, Xiao D, Lin L, Gao X, Peng L, Chen J, Xiao K, Zhu S, Chen J, Zhang F, Xiong Y, Chen H, Liao B, Zhou L, Lin Y. Antifibrotic Effects of Tetrahedral Framework Nucleic Acids by Inhibiting Macrophage Polarization and Macrophage-Myofibroblast Transition in Bladder Remodeling. Adv Healthc Mater 2023; 12:e2203076. [PMID: 36603196 DOI: 10.1002/adhm.202203076] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/20/2022] [Indexed: 01/07/2023]
Abstract
Bladder outlet obstruction (BOO) is a prevalent condition arising from urethral stricture, posterior urethral valves, and benign prostatic hyperplasia. Long-term obstruction can lead to bladder remodeling, which is characterized by inflammatory cell infiltration, detrusor hypertrophy, and fibrosis. Until now, there are no efficacious therapeutic options for BOO-induced remodeling. Tetrahedral framework nucleic acids (tFNAs) are a type of novel 3D DNA nanomaterials that possess excellent antifibrotic effects. Here, to determine the treatment effects of tFNAs on BOO-induced remodeling is aimed. Four single-strand DNAs are self-assembled to form tetrahedral framework DNA nanostructures, and the antifibrotic effects of tFNAs are investigated in an in vivo BOO animal model and an in vitro transforming growth factor beta1 (TGF-β1)-induced fibrosis model. The results demonstrated that tFNAs could ameliorate BOO-induced bladder fibrosis and dysfunction by inhibiting M2 macrophage polarization and the macrophage-myofibroblast transition (MMT) process. Furthermore, tFNAs regulate M2 polarization and the MMT process by deactivating the signal transducer and activator of transcription (Stat) and TGF-β1/small mothers against decapentaplegic (Smad) pathways, respectively. This is the first study to reveal that tFNAs might be a promising nanomaterial for the treatment of BOO-induced remodeling.
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Affiliation(s)
- Wei Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Dexuan Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Lede Lin
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Xiaoshuai Gao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Liao Peng
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Jiawei Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Kaiwen Xiao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Shiyu Zhu
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Jixiang Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Fuxun Zhang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Yang Xiong
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Huiling Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Banghua Liao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Liang Zhou
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, P. R. China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
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13
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Hughes FM, Odom MR, Cervantes A, Purves J. Inflammation triggered by the NLRP3 inflammasome is a critical driver of diabetic bladder dysfunction. Front Physiol 2022; 13:920487. [PMID: 36505062 PMCID: PMC9733912 DOI: 10.3389/fphys.2022.920487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 11/09/2022] [Indexed: 11/26/2022] Open
Abstract
Diabetes is a rapidly expanding epidemic projected to affect as many as 1 in 3 Americans by 2050. This disease is characterized by devastating complications brought about high glucose and metabolic derangement. The most common of these complications is diabetic bladder dysfunction (DBD) and estimates suggest that 50-80% of patients experience this disorder. Unfortunately, the Epidemiology of Diabetes Interventions and Complications Study suggests that strict glucose control does not decrease ones risk for incontinence, although it does decrease the risk of other complications such as retinopathy, nephropathy and neuropathy. Thus, there is a significant unmet need to better understand DBD in order to develop targeted therapies to alleviate patient suffering. Recently, the research community has come to understand that diabetes produces a systemic state of low-level inflammation known as meta-inflammation and attention has focused on a role for the sterile inflammation-inducing structure known as the NLRP3 inflammasome. In this review, we will examine the evidence that NLRP3 plays a central role in inducing DBD and driving its progression towards an underactive phenotype.
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Affiliation(s)
- Francis M. Hughes
- Division of Urology, Department of Surgery, Duke University Medical Center, Durham, NC, United States
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14
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Chen G, Chen S, Di X, He S, Liu Y, Qu R, Luo Y, Liu Y, Yang L. Survivin knockdown alleviates pathological hydrostatic pressure-induced bladder smooth muscle cell dysfunction and BOO-induced bladder remodeling via autophagy. Front Cell Dev Biol 2022; 10:999547. [PMID: 36393846 PMCID: PMC9649584 DOI: 10.3389/fcell.2022.999547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/10/2022] [Indexed: 09/05/2023] Open
Abstract
Aim: Bladder outlet obstruction (BOO) leads to bladder wall remodeling accompanying the progression from inflammation to fibrosis where pathological hydrostatic pressure (HP)-induced alteration of bladder smooth muscle cells (BSMCs) hypertrophic and excessive extracellular matrix (ECM) deposition play a pivotal role. Recently, we have predicted survivin (BIRC5) as a potential hub gene that might be critical during bladder fibrosis by bioinformatics analyses from rat BOO bladder, but its function during BOO progression remains unknown. Here, we investigated the role of survivin protein on bladder dysfunction of BOO both in vitro and in vivo. Methods: Sprague-Dawley female rats were divided into three groups: control group, BOO group, and BOO followed by the treatment with YM155 group. Bladder morphology and function were evaluated by Masson staining and urodynamic testing. To elucidate the underlying mechanism, hBSMCs were subjected to pathological HP of 200 cm H2O and co-cultured with the presence or absence of survivin siRNA and/or autophagy inhibitor 3-MA. Autophagy was evaluated by the detection of Beclin1 and LC3B-II expression, proliferation was conducted by the EdU analysis and PCNA expression, and fibrosis was assessed by the examination of Col 1 and Fn expression. Results: BOO led to a gradual alteration of hypertrophy and fibrosis of the bladder, and subsequently induced bladder dysfunction accompanied by increased survivin expression, while these histological and function changes were attenuated by the treatment with YM155. HP significantly increased survivin expression, upregulated Col1 and Fn expression, enhanced proliferation, and downregulated autophagy markers, but these changes were partially abolished by survivin siRNA treatment, which was consistent with the results of the BOO rat experiment. In addition, the anti-fibrotic and anti-proliferative effects of the survivin siRNA treatment on hBSMCs were diminished after the inhibition of autophagy by the treatment with 3-MA. Conclusion: In summary, the upregulation of survivin increased cell proliferation and fibrotic protein expression of hBSMC and drove the onset of bladder remodeling through autophagy during BOO. Targeting survivin in pathological hBSMCs could be a promising way to anti-fibrotic therapeutic approach in bladder remodeling secondary to BOO.
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Affiliation(s)
- Guo Chen
- Department of Urology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- Laboratory of Reconstructive Urology, West China Hospital, Institute of Urology, Sichuan University, Chengdu, China
| | - Shuang Chen
- Laboratory of Reconstructive Urology, West China Hospital, Institute of Urology, Sichuan University, Chengdu, China
| | - Xingpeng Di
- Laboratory of Reconstructive Urology, West China Hospital, Institute of Urology, Sichuan University, Chengdu, China
| | - Shengyin He
- Department of Urology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Yugao Liu
- Department of Urology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Rui Qu
- Department of Urology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Yi Luo
- Department of Urology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Yuebai Liu
- Department of Education and Training, Sichuan Cancer Hospital, Chengdu, China
| | - Luo Yang
- Department of Urology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
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15
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Erdogan BR, Liu G, Arioglu-Inan E, Michel MC. Established and emerging treatments for diabetes-associated lower urinary tract dysfunction. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:887-906. [PMID: 35545721 PMCID: PMC9276575 DOI: 10.1007/s00210-022-02249-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 04/28/2022] [Indexed: 12/16/2022]
Abstract
Dysfunction of the lower urinary tract (LUT) including urinary bladder and urethra (and prostate in men) is one of the most frequent complications of diabetes and can manifest as overactive bladder, underactive bladder, urinary incontinence, and as aggravated symptoms of benign prostate hyperplasia. We have performed a selective literature search to review existing evidence on efficacy of classic medications for the treatment of LUT dysfunction in diabetic patients and animals, i.e., α1-adrenoceptor and muscarinic receptor antagonists, β3-adrenoceptor agonists, and phosphodiesterase type 5 inhibitors. Generally, these agents appear to have comparable efficacy in patients and/or animals with and without diabetes. We also review effects of antidiabetic medications on LUT function. Such studies have largely been performed in animal models. In the streptozotocin-induced models of type 1 diabetes, insulin can prevent and reverse alterations of morphology, function, and gene expression patterns in bladder and prostate. Typical medications for the treatment of type 2 diabetes have been studied less often, and the reported findings are not yet sufficient to derive robust conclusions. Thereafter, we review animal studies with emerging medications perhaps targeting diabetes-associated LUT dysfunction. Data with myoinositol, daidzein, and with compounds that target oxidative stress, inflammation, Rac1, nerve growth factor, angiotensin II receptor, serotonin receptor, adenosine receptor, and soluble guanylyl cyclase are not conclusive yet, but some hold promise as potential treatments. Finally, we review nonpharmacological interventions in diabetic bladder dysfunction. These approaches are relatively new and give promising results in preclinical studies. In conclusion, the insulin data in rodent models of type 1 diabetes suggest that diabetes-associated LUT function can be mostly or partially reversed. However, we propose that considerable additional experimental and clinical studies are needed to target diabetes itself or pathophysiological changes induced by chronic hyperglycemia for the treatment of diabetic uropathy.
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Affiliation(s)
- Betül R Erdogan
- Department of Pharmacology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| | - Guiming Liu
- Department of Surgery, MetroHealth Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - Ebru Arioglu-Inan
- Department of Pharmacology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Martin C Michel
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University, Mainz, Germany.
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16
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Li T, Xing Y, Zhang G, Wang Y, Wei Y, Cui L, Zhang S, Wang Q. Circular RNA Plasmacytoma Variant Translocation 1 (CircPVT1) knockdown ameliorates hypoxia-induced bladder fibrosis by regulating the miR-203/Suppressor of Cytokine Signaling 3 (SOCS3) signaling axis. Bioengineered 2022; 13:1288-1303. [PMID: 35000524 PMCID: PMC8805914 DOI: 10.1080/21655979.2021.2001221] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/29/2021] [Indexed: 11/02/2022] Open
Abstract
The effects of circular RNAs (circRNAs) on bladder outlet obstruction (BOO)-induced hypertrophy and fibrogenesis in rats and hypoxia-induced bladder smooth muscle cell (BSMC) fibrosis remain unclear. This study aimed to determine the regulatory role of circRNAs in the phenotypic changes in BSMCs in BOO-induced rats.circRNAmicroarray and real-time PCR were used to explore differentiated expressed circRNAs. Bioinformatics analyses and dual-luciferase reporter were performed to identify the targets for circRNA PVT1 (circPVT1). BOO was performed to establish a bladder fibrosis animal model. The circPVT1 and suppressor of cytokine signaling 3 (SOCS3) expression levels were upregulated (p = 0.0061 and 0.0328, respectively), whereas the microRNA-203a (miR-203) level was downregulated in rats with bladder remodeling (p=0.0085). Bioinformatics analyses and dual-luciferase reporter assay results confirmed that circPVT1 sponges miR-203 and that the latter targets the 3'-untranslated region of SOCS3. Additionally, circPVT1 knockdown alleviated BOO-induced bladder hypertrophy and fibrogenesis. Furthermore, hypoxia was induced in BSMCs to establish a cell model of bladder fibrosis. Hypoxia induction in BSMCs resulted in upregulated circPVT1 and SOCS3 levels (p = 0.0052) and downregulated miR-203 levels. Transfection with circPVT1 and SOCS3 shRNA ameliorated hypoxia-induced transforming growth factor-β (TGF-β1), TGFβR1, α-smooth muscle actin, fibrotic growth factor, extracellular matrix subtypes, BSMC proliferation, and apoptosis-associated cell injury, whereas co-transfection with miR-203 inhibitor counteracted the effect of circPVT1 shRNA on these phenotypes.These findings revealed a novel circRNA regulator of BOO-associated bladder wall remodeling and hypoxia-induced phenotypic changes in BMSCs by targeting the miR-203-SOCS3 signaling axis.
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Affiliation(s)
- Teng Li
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yi Xing
- Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guoxian Zhang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yan Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yinsheng Wei
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lingang Cui
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shaojin Zhang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qingwei Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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