1
|
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.
Collapse
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.
| |
Collapse
|
2
|
Kanai A, Chakrabarty B, Winder M, Hashim H, Wein A, Abrams P, Fry C. New therapeutic targets to prevent benign prostatic enlargement and symptomatic progression to benign prostatic obstruction-ICI-RS 2023. Neurourol Urodyn 2024; 43:1363-1371. [PMID: 37916442 PMCID: PMC11063119 DOI: 10.1002/nau.25326] [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: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 11/03/2023]
Abstract
AIMS Benign prostatic enlargement (BPE) can impact lower urinary tract function due to its potential progression to benign prostatic obstruction (BPO). Treatment options include removal of the obstruction by surgery or through use of therapeutics designed to slow growth or reduce tissue stress imposed by muscular stromal components. Inflammation and development of fibrosis can also raise intrinsic tissue stress within the gland, further impacting obstruction. Outflow tract obstruction can also impact emission and ejaculation if the obstruction persists. METHODS This review summarizes an ICI-RS think tank considering novel drug treatments that might address BPO caused by progressive development of BPE, as well as manage decompensation changes to bladder function. RESULTS Topics included recent advances in our understanding of pathological changes occurring to the prostate and other lower urinary tract tissues during progressive development of BPE, and how prevention or reversal might benefit from the identification of novel drug targets. These included contractile properties of prostatic tissues, the impact of BPE and its effects on bladder function, the deposition of intramural fibrotic tissue with protracted BPO, the role of inflammation in the development of BPE and its progression to BPO. In particular, we discussed current therapeutic options for treating BPE/BPO, and new therapeutic targets, what they treat and their advantage over current medications. CONCLUSION Several new drug targets were identified, including soluble guanylate cyclase (sGC), the receptor for nitric oxide (NO•), and sGC activators that promotes sGC-mediated cGMP production when sGC is inactivated and unresponsive to NO•.
Collapse
Affiliation(s)
- Anthony Kanai
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, US
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, US
| | - Basu Chakrabarty
- School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK
| | - Michael Winder
- Department of Pharmacology, University of Gothenburg, Gothenburg, SE
| | - Hashim Hashim
- Bristol Urological Institute, North Bristol NHS Trust, Bristol, UK
| | - Alan Wein
- Desai Sethi Institute of Urology, University of Miami Miller School of Medicine, Miami, Florida, US
| | - Paul Abrams
- Bristol Urological Institute, North Bristol NHS Trust, Bristol, UK
| | - Christopher Fry
- School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK
| |
Collapse
|
3
|
Liang CC, Shaw SW, Chen TC, Lin YH, Huang YH, Lee TH. Local Injection of Stem Cells Can Be a Potential Strategy to Improve Bladder Dysfunction after Outlet Obstruction in Rats. Int J Mol Sci 2024; 25:8310. [PMID: 39125879 PMCID: PMC11313184 DOI: 10.3390/ijms25158310] [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: 05/26/2024] [Revised: 07/26/2024] [Accepted: 07/27/2024] [Indexed: 08/12/2024] Open
Abstract
This study investigates whether hAFSCs can improve bladder function in partial bladder outlet obstruction (pBOO) rats by targeting specific cellular pathways. Thirty-six female rats were divided into sham and pBOO groups with and without hAFSCs single injection into the bladder wall. Cystometry, inflammation/hypoxia, collagen/fibrosis/gap junction proteins, and smooth muscle myosin/muscarinic receptors were examined at 2 and 6 weeks after pBOO or sham operation. In pBOO bladders, significant increases in peak voiding pressure and residual volume stimulated a significant upregulation of inflammatory and hypoxic factors, TGF-β1 and Smad2/3. Collagen deposition proteins, collagen 1 and 3, were significantly increased, but bladder fibrosis markers, caveolin 1 and 3, were significantly decreased. Gap junction intercellular communication protein, connexin 43, was significantly increased, but the number of caveolae was significantly decreased. Markers for the smooth muscle phenotype, myosin heavy chain 11 and guanylate-dependent protein kinase, as well as M2 muscarinic receptors, were significantly increased in cultured detrusor cells. However, hAFSCs treatment could significantly ameliorate bladder dysfunction by inactivating the TGFβ-Smad signaling pathway, reducing collagen deposition, disrupting gap junctional intercellular communication, and modifying the expressions of smooth muscle myosin and caveolae/caveolin proteins. The results support the potential value of hAFSCs-based treatment of bladder dysfunction in BOO patients.
Collapse
Affiliation(s)
- Ching-Chung Liang
- Female Urology Section, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 333, Taiwan; (C.-C.L.); (Y.-H.L.); (Y.-H.H.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.W.S.); (T.-C.C.)
| | - Steven W. Shaw
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.W.S.); (T.-C.C.)
- Division of Obstetrics, Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei 105, Taiwan
- Prenatal Cell and Gene Therapy Group, Institute for Women’s Health, University College London, London WC1E 6BT, UK
| | - Tse-Ching Chen
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.W.S.); (T.-C.C.)
- Department of Anatomical Pathology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 333, Taiwan
| | - Yi-Hao Lin
- Female Urology Section, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 333, Taiwan; (C.-C.L.); (Y.-H.L.); (Y.-H.H.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.W.S.); (T.-C.C.)
| | - Yung-Hsin Huang
- Female Urology Section, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 333, Taiwan; (C.-C.L.); (Y.-H.L.); (Y.-H.H.)
| | - Tsong-Hai Lee
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.W.S.); (T.-C.C.)
- Stroke Center and Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan 333, Taiwan
| |
Collapse
|
4
|
Hudson BN, Purves JT, Hughes FM, Nagatomi J. Enzyme-induced hypoxia leads to inflammation in urothelial cells in vitro. Int Urol Nephrol 2024; 56:1565-1575. [PMID: 38133728 DOI: 10.1007/s11255-023-03900-x] [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: 09/26/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE To determine the contributions of different durations of hypoxia to NLRP3 inflammasome activation in urothelial cells and how ischemic changes in bladder tissues is an important chemical que that leads to pathological changes seen in BOO. METHODS A rat urothelial cell line (MYP3) was exposed to either a short duration (2 h) or long duration (6 h) of enzyme-induced hypoxia. Following exposure to a short duration of hypoxia, NO and ATP concentrations were measured from supernatant media and caspase-1 levels were measured from cell lysates. In a separate experiment, cells were fixed following hypoxia exposure and immunostained for HIF-1α stabilization. RESULTS Although short exposure of low oxygen conditions resulted in a hypoxic response in MYP3 cells, as indicated by HIF-1α stabilization and increased NO activity, NLRP3 inflammasome activation was not observed as caspase-1 activity remained unchanged. However, exposure of MYP3 cells to a longer duration of hypoxia resulted in an increase in intracellular caspase-1 activity. Furthermore, treatment with antioxidant (GSH) or TXNIP inhibitor (verapamil) attenuated the hypoxia-induced increase in caspase-1 levels indicating that hypoxia primarily drives inflammation through a ROS-mediated TXNIP/NLRP3 pathway. CONCLUSION We conclude that hypoxia induced bladder damage requires a duration that is more likely related to elevated storage pressures/hypoxia, seen in later stages of BOO, as compared to shorter duration pressure elevation/hypoxia that is encountered in normal micturition cycles or early in the BOO pathology where storage pressures are still normal.
Collapse
Affiliation(s)
- Britney N Hudson
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA
| | - J Todd Purves
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
- Department of Pediatrics, Duke University Medical Center, Durham, NC, USA
| | - Francis M Hughes
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Jiro Nagatomi
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA.
| |
Collapse
|
5
|
Chen J, Peng L, Chen G, Chen Y, Zeng X, Zhang J, Zhang C, Shen H, Liao B, Luo D. Single-cell transcriptomics reveal the remodeling landscape of bladder in patients with obstruction-induced detrusor underactivity. MedComm (Beijing) 2024; 5:e490. [PMID: 38414668 PMCID: PMC10896249 DOI: 10.1002/mco2.490] [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: 06/16/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/29/2024] Open
Abstract
Detrusor underactivity (DUA) is a common and thorny problem in urology, which severely impairs patients' bladder function and quality of life. However, its underlying pathophysiological mechanism remains unclear. Hence, we sequenced 69,973 cells from five controls and nine patients with bladder dysfunction using single-cell RNA sequencing. Twelve distinct cell types were identified and they showed high cellular and functional heterogeneity among each group. Among them, fibroblasts, macrophages, and epithelial cells had the most intercellular communications. Their aberrant gene expressions and altered intercellular interactions were mainly involved in extracellular matrix organization, inflammation/immune regulation, and cellular injury. Further re-cluster analysis revealed an accumulation of the RBFOX1+ fibroblasts and RIPOR2+ macrophages in dysfunctional bladder wall, which mediated bladder remodeling through dysfunctional extracellular matrix organization and inflammation/immune reaction. Besides, the subtype of the epithelial cells was significantly altered. They underwent an intricate process including inflammation, damage, and repair during bladder remodeling. Overall, this work constructed the first single-cell atlas for obstruction-induced DUA, which could provide a valuable resource for deciphering the cellular heterogeneity and function changes in DUA, as well as potential strategies for bladder function improvement.
Collapse
Affiliation(s)
- Jiawei Chen
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Liao Peng
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Guo Chen
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology and Pelvic surgeryWest China School of Public Health and West China Fourth HospitalSichuan UniversitySichuanChina
| | - Yuanzhuo Chen
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Xiao Zeng
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Jie Zhang
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Chi Zhang
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Hong Shen
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Banghua Liao
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
| | - Deyi Luo
- Department of UrologyWest China HospitalSichuan UniversitySichuanChina
- Department of Urology, Institute of UrologyWest China HospitalSichuan UniversitySichuanChina
- Pelvic Floor Diseases CenterWest China Tianfu HospitalSichuan UniversitySichuanChina
| |
Collapse
|
6
|
Akshay A, Gheinani AH, Besic M, Braga S, Uldry AC, Heller M, Rehrauer H, Fournier CA, Burkhard FC, Monastyrskaya K. De-obstruction of bladder outlet in humans reverses organ remodelling by normalizing the expression of key transcription factors. BMC Urol 2024; 24:33. [PMID: 38326801 PMCID: PMC10848355 DOI: 10.1186/s12894-024-01417-8] [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: 08/24/2023] [Accepted: 01/25/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND Benign prostatic hyperplasia in elderly males often causes bladder outlet obstruction termed benign prostatic obstruction (BPO). BPO induces lower urinary tract symptoms and quantifiable urodynamic alterations in bladder function. When conservative medical treatments are exhausted, surgical interventions like transurethral resection of the prostate (TURP) are employed for bladder outlet de-obstruction. Elucidating the molecular changes in the human bladder resulting from BPO and their reversal post-de-obstruction is pivotal for defining the "point of no return", when the organ deterioration becomes irreversible. In this study we carried out a comprehensive molecular and urodynamic characterization of the bladders in men with BPO before TURP and 3 months after the relief of obstruction. METHODS We report integrated transcriptome and proteome analysis of bladder samples from male patients with BPO before and 3 months after de-obstruction surgery (TURP). mRNA and protein profiles were correlated with urodynamic findings, specifically voiding detrusor pressure (PdetQmax) before TURP. We delineated the molecular classifiers of each group, pointing at the different pre-TURP bladder status. RESULTS Age-matched patients with BPO without DO were divided into two groups based on the PdetQmax values recorded by UDI before de-obstruction: high and medium pressure (HP and MP) groups. Three months after de-obstruction surgery, the voiding parameters PdetQmax, Qmax and RV were significantly improved in both groups, without notable inter-group differences in the values after TURP. Patients with high PdetQmax showed less advanced remodeling and inflammatory changes than those with lower values. We detected significant dysregulation of gene expression, which was at least partially reversed by de-obstruction in both patients' groups. Transcription factor SOX21 and its target thrombospondin 4 (THBS4) demonstrated normalization post-TURP. CONCLUSIONS Our findings reveal substantial yet incomplete reversal of cell signalling pathways three months after TURP, consistent with improved urodynamic parameters. We propose a set of biomarker genes, indicative of BPO, and possibly contributing to the bladder changes. This study unveils the stages of progressive obstruction-induced bladder decompensation and offers insights into selecting an optimal intervention point to mitigate loss of contractility.
Collapse
Affiliation(s)
- Akshay Akshay
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Ali Hashemi Gheinani
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
- Department of Urology, Inselspital University Hospital, 3010, Bern, Switzerland
- Department of Urology, Boston Children's Hospital, Department of Surgery, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Mustafa Besic
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
| | - Sophie Braga
- Proteomics and Mass Spectrometry Core Facility, DBMR University of Bern, Bern, Switzerland
| | - Anne-Christine Uldry
- Proteomics and Mass Spectrometry Core Facility, DBMR University of Bern, Bern, Switzerland
| | - Manfred Heller
- Proteomics and Mass Spectrometry Core Facility, DBMR University of Bern, Bern, Switzerland
| | - Hubert Rehrauer
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich, Switzerland
| | | | - Fiona C Burkhard
- Department of Urology, Inselspital University Hospital, 3010, Bern, Switzerland
| | - Katia Monastyrskaya
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland.
- Department of Urology, Inselspital University Hospital, 3010, Bern, Switzerland.
| |
Collapse
|
7
|
Long J, Yang Y, Yang J, Chen L, Wang S, Zhou X, Su Y, Liu C. Targeting Thbs1 reduces bladder remodeling caused by partial bladder outlet obstruction via the FGFR3/p-FGFR3 pathway. Neurourol Urodyn 2024; 43:516-526. [PMID: 38108523 DOI: 10.1002/nau.25366] [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: 08/27/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND Partial bladder outlet obstruction (pBOO) may lead to bladder remodeling, including fibrosis and extracellular matrix (ECM) deposition. Despite the extensive research on the mechanisms underlying pBOO, potential therapeutic targets for the treatment of pBOO require further research. Dysregulated expression of thrombospondin-1 (Thbs1) has been reported in various human fibrotic diseases; however, its relationship with pBOO remains unclear. AIMS Investigate the effects of Thbs1 on bladder remodeling caused by pBOO. METHODS We established a pBOO model in Sprague-Dawley rats and performed urodynamic analyses to estimate functional changes in the bladder, validated the histopathological changes in the bladder by using haematoxylin-eosin and Masson's trichrome staining, identified key target genes by integrating RNA sequencing (RNA-seq) and bioinformatics analyses, validated the expression of related factors using Western blot analysis and RT-qPCR, and used immunofluorescence staining to probe the potential interaction factors of Thbs1. RESULTS Urodynamic results showed that pressure-related parameters were significantly increased in rats with pBOO. Compared with the sham group, the pBOO group demonstrated significant increases in bladder morphology, bladder weight, and collagen deposition. Thbs1 was significantly upregulated in the bladder tissues of rats with pBOO, consistent with the RNA-seq data. Thbs1 upregulation led to increased expression of matrix metalloproteinase (MMP) 2, MMP9, and fibronectin (Fn) in normal human urinary tract epithelial cells (SV-HUC-1), whereas anti-Thbs1 treatment inhibited the production of these cytokines in TGF-β1-treated SV-HUC-1. Further experiments indicated that Thbs1 affected bladder remodeling in pBOO via the fibroblast growth factor receptor 3 (FGFR3) pathway. CONCLUSIONS Thbs1 plays a crucial role in bladder remodeling caused by pBOO. Targeting Thbs1 might alleviate ECM damage. Mechanistically, Thbs1 may function via the FGFR signaling pathway by regulating the FGFR3 receptor, identified as the most relevant disease target of pBOO, and FGF2 may be a mediator. These findings suggest that Thbs1 plays a role in BOO development and is a therapeutic target for this condition.
Collapse
Affiliation(s)
- Jun Long
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, China
- Graduate School, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yafei Yang
- Department of Urology, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Jin Yang
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, China
| | - Lin Chen
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, China
| | - Song Wang
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, China
- Graduate School, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xin Zhou
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, China
- Graduate School, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yao Su
- College of Pharmacy, Chengdu University, Chengdu, China
| | - Chenhuan Liu
- Clinical Medical College & Affiliated Hospital of Chengdu University, Chengdu, China
- Graduate School, Zunyi Medical University, Zunyi, Guizhou, China
| |
Collapse
|
8
|
Gao X, Jin X, Wang W, Di X, Peng L, Li H, Liao B, Wang K. β-Adrenoceptors regulate urothelial inflammation and zonula occludens in the bladder outlet obstruction model. Int Immunopharmacol 2024; 127:111371. [PMID: 38103410 DOI: 10.1016/j.intimp.2023.111371] [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: 09/11/2023] [Revised: 11/23/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND The purpose of this study was to evaluate the effects of β-adrenoceptors (ADRBs) on the urothelial inflammation and zonula occludens (ZO) in a rat PBOO model and in an in vitro model. METHODS The PBOO model was established by ligating the bladder neck of rats. Twenty rats were divided into 4 groups: sham operation, PBOO + normal saline, PBOO + ADRB2 agonist, PBOO + ADRB3 agonist. PBOO rats were with treated with ADRBs agonists for 3 weeks. Human urothelial cells (HUCs) were subjected to ADRBs agonist treatment or hydrostatic pressure in an in vitro model. RESULTS In the PBOO group, there was a significant increase in the expression of MCP-1, IL-6 and RANTES compared to the sham group. By contrast, there was a post-PBOO decline in the expression of ZO-1 and ZO-2 in the urothelium. ADRB2 or ADRB3 agonists exhibited downregulated inflammatory cytokine expression and increased ZO expression in the PBOO model. The regulation of inflammation and ZO by ADRB2 and ADRB3 agonists in an in vitro model was found consistent with that in the PBOO model. Moreover, RhoA and ROCK inhibitors suppressed the expression of hydrostatic pressure-induced inflammatory cytokines. Additionally, RhoA agonist reversed the inhibitory effect of ADRBs agonists on the inflammatory secretion from HUCs. CONCLUSIONS ADRB2 and ADRB3 agonists increased ZO protein expression in HUCs in a rat PBOO model and in an in vitro model. Furthermore, ADRB2 and ADRB3 agonists inhibited the secretion of inflammatory cytokines from HUCs by regulating the RhoA/ROCK signaling pathways.
Collapse
Affiliation(s)
- Xiaoshuai Gao
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xi Jin
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Wei Wang
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xingpeng Di
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Liao Peng
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Hong Li
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Banghua Liao
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
| | - Kunjie Wang
- Department of Urology and Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
| |
Collapse
|
9
|
Wang HHS, Thaker H, Bigger-Allen A, Nagy JA, Rutkove SB. Novel phenotype characterization utilizing electrical impedance myography signatures in murine spinal cord injury neurogenic bladder models. Sci Rep 2023; 13:19520. [PMID: 37945675 PMCID: PMC10636012 DOI: 10.1038/s41598-023-46740-6] [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: 05/16/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023] Open
Abstract
Neurogenic bladder (NB) affects people of all ages. Electric impedance myography (EIM) assesses localized muscle abnormalities. Here, we sought to investigate whether unique detrusor EIM signatures are present in NB due to spinal cord injury (SCI). Twenty-eight, 8-10 weeks old, C57BL/6J female mice were studied. Twenty underwent spinal cord transection; 8 served as controls. Cohorts were euthanized at 4 and 6 weeks after spinal cord transection. Each bladder was measured in-situ with EIM with applied frequencies of 1 kHz to 10 MHz, and then processed for molecular and histologic study. SCI mice had greater bladder-to-body weight ratio (p < 0.0001), greater collagen deposition (p = 0.009), and greater smooth-muscle-myosin-heavy-chain isoform A/B ratio (p < 0.0001). Compared with the control group, the SCI group was associated with lower phase, reactance, and resistance values (p < 0.01). Significant correlations (p < 0.001) between bladder-to-body weight ratios and EIM measurements were observed across the entire frequency spectrum. A severely hypertrophied phenotype was characterized by even greater bladder-to-body weight ratios and more depressed EIM values. Our study demonstrated distinct EIM alterations in the detrusor muscle of mice with NB due to SCI. With further refinement, EIM may offer a potential point-of-care tool for the assessment of NB and its response to treatment.
Collapse
Affiliation(s)
- Hsin-Hsiao Scott Wang
- Department of Urology, Boston Children's Hospital, 300 Longwood Ave, HU390, Boston, MA, USA.
- Harvard Medical School, Boston, MA, 02215, USA.
| | - Hatim Thaker
- Department of Urology, Boston Children's Hospital, 300 Longwood Ave, HU390, Boston, MA, USA
- Harvard Medical School, Boston, MA, 02215, USA
| | - Alex Bigger-Allen
- Department of Urology, Boston Children's Hospital, 300 Longwood Ave, HU390, Boston, MA, USA
| | - Janice A Nagy
- Harvard Medical School, Boston, MA, 02215, USA
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Seward B Rutkove
- Harvard Medical School, Boston, MA, 02215, USA
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| |
Collapse
|
10
|
Marchon RG, Gregório BM, Pereira-Sampaio MA, Costa WS, Sampaio FJ, De Souza DB. Effects of chronic stress on bladder morphology of rats and impact of comfort food diet as an ameliorating agent. Stress 2023; 26:2265160. [PMID: 37796089 DOI: 10.1080/10253890.2023.2265160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/23/2023] [Indexed: 10/06/2023] Open
Abstract
OBJECTIVES To investigate the effects of chronic stress on bladder morphology and the impact of food preference (standard or comfort foods) on the bladder of stressed rats. METHODS In total, 32 Wistar male rats (3 months old) were divided into four groups: control (C), stressed (S), control + comfort food (C + CF), and stressed + comfort food (S + CF). Groups C and C + CF were maintained under normal conditions, while groups S and S + CF were subjected to chronic stress by the restraint method. Groups C and S received standard rat chow, while groups C + CF and S + CF received comfort food (Froot Loops®) and standard chow. The stress stimuli were induced daily for 2 h over 8 weeks. After 8 weeks, all animals were killed, and the bladders were removed and used for histomorphometric analysis. RESULTS Body mass was similar among the groups. Stress did not promote differences regarding food intake, but animals receiving comfort food showed higher calories intake (in kcal/Kg) than animals receiving only standard chow. The C + CF and S + CF groups preferred comfort food over the standard chow; this preference was higher in the S + CF than in the C + CF group. The surface density of smooth muscle was reduced in stressed animals, while connective tissue and elastic system fiber content were increased in stressed groups. Further, epithelial height was increased in rats submitted to chronic stress. The surface density of elastic system fibers was decreased by the consumption of comfort food. CONCLUSIONS Chronic stress induces morphological modifications on the bladder wall and epithelium. These modifications may be related to lower urinary tract symptoms. Additionally, chronic stress caused a higher preference for comfort food intake which did not ameliorate or aggravate the stress-induced bladder alterations.
Collapse
Affiliation(s)
- Roger G Marchon
- Urogenital Research Unit, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Bianca M Gregório
- Urogenital Research Unit, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Marco A Pereira-Sampaio
- Urogenital Research Unit, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Department of Morphology, Federal Fluminense University, Niterói, RJ, Brazil
| | - Waldemar S Costa
- Urogenital Research Unit, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Francisco J Sampaio
- Urogenital Research Unit, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Diogo B De Souza
- Urogenital Research Unit, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| |
Collapse
|
11
|
Wang J, Ren L, Liu X, Liu J, Ling Q. Underactive Bladder and Detrusor Underactivity: New Advances and Prospectives. Int J Mol Sci 2023; 24:15517. [PMID: 37958499 PMCID: PMC10648240 DOI: 10.3390/ijms242115517] [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: 09/18/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023] Open
Abstract
Underactive bladder (UAB) is a prevalent but under-researched lower urinary tract symptom that typically occurs alongside detrusor underactivity (DU). Unlike UAB, DU is a urodynamic diagnosis which the International Continence Society (ICS) defines as "a contraction of reduced strength and/or duration, resulting in prolonged bladder emptying and/or a failure to achieve complete bladder emptying within a normal time span". Despite the widespread prevalence of UAB/DU, there are significant gaps in our understanding of its pathophysiological mechanisms, diagnosis, and treatment compared with overactive bladder (OAB) and detrusor overactivity (DO). These gaps are such that clinicians regard UAB/DU as an incurable condition. In recent years, the understanding of UAB has increased. The definition of UAB has been clarified, and the diagnostic criteria for DU have been considered more comprehensively. Meanwhile, a number of non-invasive diagnostic methods have also been reported. Clinical trials involving novel drugs, electrical stimulation, and stem cell therapy have shown promising results. Therefore, this review summarizes recent reports on UAB and DU and highlights the latest advances in their diagnosis and treatment.
Collapse
Affiliation(s)
- Jiaxin Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lida Ren
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xinqi Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qing Ling
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| |
Collapse
|
12
|
Wang X, Chen HS, Wang C, Luo XG, Wang YX, Ye ZH, Liu X, Wei GH. A grading system for evaluation of bladder trabeculation. World J Urol 2023; 41:2443-2449. [PMID: 37495748 DOI: 10.1007/s00345-023-04527-4] [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: 04/05/2023] [Accepted: 07/10/2023] [Indexed: 07/28/2023] Open
Abstract
PURPOSE To establish a parameter-based grading system for evaluating bladder trabeculation (BT). MATERIALS AND METHODS A retrospective analysis was conducted on children diagnosed with posterior urethral valve (PUV) or neurogenic bladder (NB) who underwent voiding cystourethrogram (VCUG), urodynamic testing, and urological ultrasonography between January 2016 and October 2022. Cases involving urologic surgery, secondary bladder pathology, and an interval of more than 12 months between examinations were excluded. A parameter named Bladder Dispersion (BD) was calculated through fluoroscopic images, and the grading system was developed as follows: BD < 40 (Grade 0), 40 ≤ BD < 60 (Grade 1), 60 ≤ BD < 90 (Grade 2), BD ≥ 90 (Grade 3). Grades 0-1 were classified as low-risk group, while grades 2-3 were classified as high-risk group. Analysis of variance, Kruskal-Wallis test, and Chi-square test were performed to compare urodynamic results and complications across different grades and groups. RESULTS A total of 74 patients were eligible to participate, which included 46 boys (62.2%) and 28 girls (37.8%), the mean age was 75.18 ± 48.39 months. Among them, 11 (14.9%) were PUV, 50 (67.6%) were NB, and 13 (17.5%) were PUV and NB. Significant differences were observed in maximum detrusor pressure, post-void residual urine ratio, and compliance among grades 0-3. Severe hydronephrosis and histories of urinary tract infection were more prevalent in the high-risk group. CONCLUSION A reliable grading system with objective standards was proposed which could aid in the assessment of BT severity.
Collapse
Affiliation(s)
- Xiao Wang
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Hong-Song Chen
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Chong Wang
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Xing-Guo Luo
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Yan-Xi Wang
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Zi-Han Ye
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| | - Xing Liu
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China.
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China.
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China.
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China.
| | - Guang-Hui Wei
- Department of Urology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, People's Republic of China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, People's Republic of China
- Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, People's Republic of China
| |
Collapse
|
13
|
Wang J, Ren L, Liu X, Xu W, Liu M, Hu P, Wang T, Liu J, Ling Q. Transcriptomics Reveals Molecular Features of the Bilateral Pelvic Nerve Injury Rat Model of Detrusor Underactivity. Biomolecules 2023; 13:1260. [PMID: 37627325 PMCID: PMC10452637 DOI: 10.3390/biom13081260] [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: 07/19/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
The pathogenesis of detrusor underactivity (DU) is unclear, and the available therapeutic effects are unsatisfactory. We propose to find key molecules and pathways related to DU based on transcriptome sequencing. A rat model of bilateral pelvic nerve injury (BPNI) was established. Bladder tissues from the sham-operated group, 3 and 28 days after BPNI mapping, were taken for urodynamics, histopathology, and RNA-seq. An enrichment analysis of the screened differential expression genes was performed. Three days after BPNI, the results showed urodynamic features of overflow incontinence, while there was a recovery at 28 days after the operation. Masson staining revealed collagen deposition accompanied by progressive thickening of the smooth muscle layer as DU progressed. RNA-seq results suggested that a total of 1808 differentially expressed genes (DEGs) differed among the groups. RNA-seq and subsequent analysis confirmed that the cell cycle and immune response were significantly activated 3 days after BPNI, while extracellular matrix remodeling occurred 28 days after BPNI. Partial DEGs and pathways were verified by qRT-PCR. Validation of key proteins involved in cell cycle, inflammation, and fibrosis was performed by immunohistochemical staining and western blot, respectively. These molecular expression patterns at different time points after BPNI injury provide valuable insights into the search for therapeutic targets for DU.
Collapse
Affiliation(s)
- Jiaxin Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lida Ren
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xinqi Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wenchao Xu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Man Liu
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Peng Hu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Tao Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qing Ling
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| |
Collapse
|
14
|
Chen J, Li Q, Hong Y, Zhou X, Yu C, Tian X, Zhao J, Long C, Shen L, Wu S, Wei G. Inhibition of the NF-κB Signaling Pathway Alleviates Pyroptosis in Bladder Epithelial Cells and Neurogenic Bladder Fibrosis. Int J Mol Sci 2023; 24:11160. [PMID: 37446339 DOI: 10.3390/ijms241311160] [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: 05/24/2023] [Revised: 06/25/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Most children with a neurogenic bladder (NB) have bladder fibrosis, which causes irreversible bladder dysfunction and damage to the upper urinary tract. However, the mechanism of bladder fibrosis remains unclear. This study aimed to investigate the underlying causes of bladder fibrosis. Here, the lumbar 6 (L6) and sacral 1 (S1) spinal nerves of Sprague Dawley rats were severed bilaterally to establish NB models. Using RNA-seq, we discovered that the NF-κB signaling pathway and inflammation were upregulated in spinal cord injury (SCI)-induced bladder fibrosis. Subsequent Western blotting, enzyme-linked immunosorbent assays, immunohistochemical staining, and immunofluorescence staining verified the RNA-seq findings. To further clarify whether the NF-κB signaling pathway and pyroptosis were involved in bladder fibrosis, a TGF-β1-treated urinary epithelial cell line (SV-HUC-1 cells) was used as an in vitro model. Based on the results of RNA-seq, we consistently found that the NF-κB signaling pathway and pyroptosis might play important roles in TGF-β1-treated cells. Further experiments also confirmed the RNA-seq findings in vitro. Moreover, using the NLRP3 inhibitor MCC950 rescued TGF-β1-induced fibrosis, and the NF-κB signaling pathway inhibitor BAY 11-7082 effectively rescued TGF-β1-induced pyroptosis and the deposition of extracellular matrix by SV-HUC-1 cells. In summary, our research demonstrated for the first time that the NF-κB signaling pathway inhibition rescued bladder epithelial cells pyroptosis and fibrosis in neurogenic bladders.
Collapse
Affiliation(s)
- Jing Chen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Qi Li
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Xiazhu Zhou
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Chengjun Yu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Xiaomao Tian
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Jie Zhao
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Chunlan Long
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Lianju Shen
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| |
Collapse
|
15
|
Wang Z, Spitz R, Vezina C, Hou J, Bjorling DE. Lack of expression of miR-29a/b1 impairs bladder function in male mice. Dis Model Mech 2023; 16:dmm050054. [PMID: 37283037 PMCID: PMC10259841 DOI: 10.1242/dmm.050054] [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: 12/23/2022] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
Lower urinary tract symptoms (LUTS) refer to various urological diseases, and incomplete bladder emptying is common among affected patients. The etiology of LUTS is largely unknown, and investigations of LUTS suggest that bladder fibrosis contributes to pathogenesis of LUTS. MicroRNAs (miRNAs) are short (∼22 nucleotides), non-coding RNAs that repress target gene expression by a combination of mRNA degradation and translation inhibition. The miR-29 family is best known for its anti-fibrotic role in various organs. miR-29 was decreased in bladders of patients with outlet obstruction and a rat model of bladder outlet obstruction, suggesting that miR-29 may contribute to impaired bladder function subsequent to tissue fibrosis. We characterized bladder function in male mice lacking expression of Mir29a and Mir29b-1 (miR-29a/b1). Lack of miR-29a/b1 resulted in severe urinary retention, increased voiding duration and reduced flow rate, and these mice failed to void or voided irregularly during anesthetized cytometry. Collagens and elastin were increased in bladders of mice lacking miR-29a/b1. These findings reveal an important role for miR-29 in bladder homeostasis and suggest the therapeutic potential of miR-29 to improve symptoms in patients with LUTS.
Collapse
Affiliation(s)
- Zunyi Wang
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Robert Spitz
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Chad Vezina
- The O'Brien Center for Urologic Research, University of Wisconsin-Madison, Madison, WI 53706, USA
- Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jianghui Hou
- Division of Nephrology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Dale E. Bjorling
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
- The O'Brien Center for Urologic Research, University of Wisconsin-Madison, Madison, WI 53706, USA
- Urology, University of Wisconsin-Madison, Madison, WI 53706, USA
| |
Collapse
|
16
|
Choi BH, Cho TJ, Lee T, Park CS. Hypoxia-inducible factor-1α-mediated SERPINE-1 expression in ischemic urinary bladder. Mol Cell Toxicol 2023. [DOI: 10.1007/s13273-023-00334-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
|
17
|
von Siebenthal M, Akshay A, Besic M, Schneider MP, Hashemi Gheinani A, Burkhard FC, Monastyrskaya K. Molecular Characterization of Non-Neurogenic and Neurogenic Lower Urinary Tract Dysfunction (LUTD) in SCI-Induced and Partial Bladder Outlet Obstruction Mouse Models. Int J Mol Sci 2023; 24:ijms24032451. [PMID: 36768773 PMCID: PMC9916488 DOI: 10.3390/ijms24032451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/28/2023] Open
Abstract
We examined bladder function following spinal cord injury (SCI) by repeated urodynamic investigation (UDI), including external urethral sphincter (EUS) electromyography (EMG) in awake restrained mice and correlated micturition parameters to gene expression and morphological changes in the bladder. A partial bladder outlet obstruction (pBOO) model was used for comparison to elucidate both the common and specific features of obstructive and neurogenic lower urinary tract dysfunction (LUTD). Thirty female C57Bl/6J mice in each group received an implanted bladder catheter with additional electrodes placed next to the EUS in the SCI group. UDI assessments were performed weekly for 7 weeks (pBOO group) or 8 weeks (SCI group), after which bladders were harvested for histological and transcriptome analysis. SCI mice developed detrusor sphincter dyssynergia (DSD) one week after injury with high-pressure oscillations and a significantly increased maximal bladder pressure Pmax and were unable to void spontaneously during the whole observation period. They showed an increased bladder-to-bodyweight ratio, bladder fibrosis, and transcriptome changes indicative of extracellular matrix remodeling and alterations of neuronal signaling and muscle contraction. In contrast, pBOO led to a significantly increased Pmax after one week, which normalized at later time points. Increased bladder-to-bodyweight ratio and pronounced gene expression changes involving immune and inflammatory pathways were observed 7 weeks after pBOO. Comparative transcriptome analysis of SCI and pBOO bladders revealed the activation of Wnt and TGF-beta signaling in both the neurogenic and obstructive LUTD and highlighted FGF2 as a major upregulated transcription factor during organ remodeling. We conclude that SCI-induced DSD in mice leads to profound changes in neuronal signaling and muscle contractility, leading to bladder fibrosis. In a similar time frame, significant bladder remodeling following pBOO allowed for functional compensation, preserving normal micturition parameters.
Collapse
Affiliation(s)
- Michelle von Siebenthal
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland
| | - Akshay Akshay
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, 3012 Bern, Switzerland
| | - Mustafa Besic
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland
| | - Marc P. Schneider
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland
| | - Ali Hashemi Gheinani
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland
| | - Fiona C. Burkhard
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland
- Department of Urology, Inselspital University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Katia Monastyrskaya
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland
- Department of Urology, Inselspital University Hospital, University of Bern, 3010 Bern, Switzerland
- Correspondence: ; Tel.: +41-316328776
| |
Collapse
|
18
|
Di X, Xiang L, Jian Z. YAP-mediated mechanotransduction in urinary bladder remodeling: Based on RNA-seq and CUT&Tag. Front Genet 2023; 14:1106927. [PMID: 36741311 PMCID: PMC9895788 DOI: 10.3389/fgene.2023.1106927] [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: 11/24/2022] [Accepted: 01/10/2023] [Indexed: 01/22/2023] Open
Abstract
Yes-associated protein (YAP) is an important transcriptional coactivator binding to transcriptional factors that engage in many downstream gene transcription. Partial bladder outlet obstruction (pBOO) causes a massive burden to patients and finally leads to bladder fibrosis. Several cell types engage in the pBOO pathological process, including urothelial cells, smooth muscle cells, and fibroblasts. To clarify the function of YAP in bladder fibrosis, we performed the RNA-seq and CUT&Tag of the bladder smooth muscle cell to analyze the YAP ablation of human bladder smooth muscle cells (hBdSMCs) and immunoprecipitation of YAP. 141 differentially expressed genes (DEGs) were identified through RNA-seq between YAP-knockdown and nature control. After matching with the results of CUT&Tag, 36 genes were regulated directly by YAP. Then we identified the hub genes in the DEGs, including CDCA5, CENPA, DTL, NCAPH, and NEIL3, that contribute to cell proliferation. Thus, our study provides a regulatory network of YAP in smooth muscle proliferation. The possible effects of YAP on hBdSMC might be a vital target for pBOO-associated bladder fibrosis.
Collapse
Affiliation(s)
- Xingpeng Di
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Liyuan Xiang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, China,Department of Clinical Research Management, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhongyu Jian
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, China,*Correspondence: Zhongyu Jian,
| |
Collapse
|
19
|
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.
Collapse
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
| |
Collapse
|
20
|
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.
Collapse
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
| |
Collapse
|
21
|
Astragaloside IV Protects Detrusor from Partial Bladder Outlet Obstruction-Induced Oxidative Stress by Activating Mitophagy through AMPK-ULK1 Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5757367. [PMID: 35873803 PMCID: PMC9300277 DOI: 10.1155/2022/5757367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/21/2022] [Accepted: 06/27/2022] [Indexed: 11/23/2022]
Abstract
Aims Bladder outlet obstruction (BOO) and the consequent low contractility of detrusor are the leading causes of voiding dysfunction. In this study, we aimed to evaluate the pharmacological activity of astragaloside IV (AS-IV), an antioxidant biomolecule that possess beneficial effect in many organs, on detrusor contractility and bladder wall remodeling process. Methods Partial BOO (pBOO) was created by urethral occlusion in female rats, followed by oral gavage of different dose of AS-IV or vehicle. Cystometric evaluation and contractility test were performed. Bladder wall sections were used in morphology staining, and bladder tissue lysate was used for ELISA assay. Primary smooth muscle cells (SMCs) derived from detrusor were used for mechanism studies. Results Seven weeks after pBOO, the bladder compensatory enlarged, and the contractility in response to electrical or chemical stimuli was reduced, while AS-IV treatment reversed this effect dose-dependently. AS-IV also showed beneficial effect on reversing the bladder wall remodeling process, as well as reducing ROS level. In mechanism study, AS-IV activated mitophagy and alleviated oxidative stress via an AMPK-dependent pathway. Conclusion Out data suggested that AS-IV enhanced the contractility of detrusor and protected the bladder from obstruction induced damage, via enhancing the mitophagy and restoring mitochondria function trough an AMPK-dependent way.
Collapse
|
22
|
Li J, Li S, Wang Y, Shang A. Functional, morphological and molecular characteristics in a novel rat model of spinal sacral nerve injury-surgical approach, pathological process and clinical relevance. Sci Rep 2022; 12:10026. [PMID: 35705577 PMCID: PMC9200741 DOI: 10.1038/s41598-022-13254-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 01/19/2022] [Indexed: 02/05/2023] Open
Abstract
Spinal sacral nerve injury represents one of the most serious conditions associated with many diseases such as sacral fracture, tethered cord syndrome and sacral canal tumor. Spinal sacral nerve injury could cause bladder denervation and detrusor underactivity. There is limited clinical experience resolving spinal sacral nerve injury associated detrusor underactivity patients, and thus the treatment options are also scarce. In this study, we established a spinal sacral nerve injury animal model for deeper understanding and further researching of this disease. Forty 8 w (week) old Sprague Dawley rats were included and equally divided into sham (n = 20) and crush group (n = 20). Bilateral spinal sacral nerves of rats were crushed in crush group, and sham group received same procedure without nerve crush. Comprehensive evaluations at three time points (1 w, 4 w and 6 w) were performed to comprehend the nature process of this disease. According to urodynamic test, ultrasonography and retrograde urography, we could demonstrate severe bladder dysfunction after spinal sacral nerve injury along the observation period compared with sham group. These functional changes were further reflected by histological examination (hematoxylin-eosin and Masson's trichrome staining) of microstructure of nerves and bladders. Immunostaining of nerve/bladder revealed schwann cell death, axon degeneration and collagen remodeling of bladder. Polymerase Chain Reaction results revealed vigorous nerve inflammation and bladder fibrosis 1 week after injury and inflammation/fibrosis returned to normal at 4 w. The CatWalk gait analysis was performed and there was no obvious difference between two groups. In conclusion, we established a reliable and reproducible model for spinal sacral nerve injury, this model provided an approach to evaluate the treatment strategies and to understand the pathological process of spinal sacral nerve injuries. It allowed us to understand how nerve degeneration and bladder fibrosis changed following spinal sacral nerve injury and how recovery could be facilitated by therapeutic options for further research.
Collapse
Affiliation(s)
- Junyang Li
- The School of Medicine, Nankai University, Tianjin, 300071, China
- Department of Neurosurgery, General Hospital of Chinese People Liberty Army, No. 28 Fuxing Road, Beijing, 100853, China
| | - Shiqiang Li
- The 80Th Group Army Hospital of Chinese People Liberty Army, Shandong, 261021, China
| | - Yu Wang
- Institute of Orthopedics, 4th, Chinese People Liberty Army General Hospital, Beijing, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226007, People's Republic of China
| | - Aijia Shang
- The School of Medicine, Nankai University, Tianjin, 300071, China.
- Department of Neurosurgery, General Hospital of Chinese People Liberty Army, No. 28 Fuxing Road, Beijing, 100853, China.
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226007, People's Republic of China.
| |
Collapse
|
23
|
Li X, Hu J, Zhao X, Li J, Chen Y. Piezo channels in the urinary system. Exp Mol Med 2022; 54:697-710. [PMID: 35701561 PMCID: PMC9256749 DOI: 10.1038/s12276-022-00777-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/25/2022] [Accepted: 02/16/2022] [Indexed: 12/24/2022] Open
Abstract
The Piezo channel family, including Piezo1 and Piezo2, includes essential mechanosensitive transduction molecules in mammals. Functioning in the conversion of mechanical signals to biological signals to regulate a plethora of physiological processes, Piezo channels, which have a unique homotrimeric three-blade propeller-shaped structure, utilize a cap-motion and plug-and-latch mechanism to gate their ion-conducting pathways. Piezo channels have a wide range of biological roles in various human systems, both in vitro and in vivo. Currently, there is a lack of comprehensive understanding of their antagonists and agonists, and therefore further investigation is needed. Remarkably, increasingly compelling evidence demonstrates that Piezo channel function in the urinary system is important. This review article systematically summarizes the existing evidence of the importance of Piezo channels, including protein structure, mechanogating mechanisms, and pharmacological characteristics, with a particular focus on their physiological and pathophysiological roles in the urinary system. Collectively, this review aims to provide a direction for future clinical applications in urinary system diseases.
Collapse
Affiliation(s)
- Xu Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Junwei Hu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xuedan Zhao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Juanjuan Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Yuelai Chen
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
| |
Collapse
|
24
|
Liang CC, Huang WC, Shaw SW, Huang YH, Lee TH. Human amniotic fluid stem cells can alleviate detrusor dysfunction caused by bladder outlet obstruction in rats. Sci Rep 2022; 12:6679. [PMID: 35461349 PMCID: PMC9035144 DOI: 10.1038/s41598-022-10640-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 03/21/2022] [Indexed: 11/09/2022] Open
Abstract
The present study examined whether bladder detrusor dysfunction due to partial bladder outlet obstruction (pBOO) could be improved after the treatment of human amniotic fluid stem cells (hAFSCs). 72 female rats were grouped into sham operation, pBOO, and pBOO with hAFSCs treatment (pBOO + hAFSCs) for in vitro and in vivo studies. Bladder weight, bladder wall thickness, the ratio of collagen to smooth muscle and the levels of positive CD11b/c and HIS48 cells was significantly increased after pBOO but improved after hAFSCs treatment. Cystometries showed impaired bladder function after pBOO. Protein and mRNA levels of hypoxia inducible factor-1α, CCL2, interleukin-1β, transforming growth factor-β1 (TGF-β1), connective tissue growth factor (CTGF), α-smooth muscle actin, collagen I and collagen III were increased at 2 and/or 6 weeks, but proteins and mRNA expressions of protein gene product 9.5 were decreased at 2 and 6 weeks after pBOO. These abnormalities were improved after hAFSCs treatment. The expressions of TGF-β1 and CTGF in cultured detrusor cells of pBOO rats were increased but were improved after hAFSCs treatment. The present results showed hAFSCs treatment could improve bladder detrusor dysfunction in pBOO rats, which may be related to the reduction of inflammatory and pro-fibrotic markers in detrusor muscle cells.
Collapse
Affiliation(s)
- Ching-Chung Liang
- Female Urology Section, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wen-Chu Huang
- Division of Urogynecology, Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Nursing, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Steven W Shaw
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Division of Obstetrics, Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan.,Prenatal Cell and Gene Therapy Group, Institute for Women's Health, University College London, London, UK
| | - Yung-Hsin Huang
- Female Urology Section, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan
| | - Tsong-Hai Lee
- College of Medicine, Chang Gung University, Taoyuan, Taiwan. .,Stroke Center and Department of Neurology, Chang Gung Memorial Hospital, Linkou Medical Center, No. 5, Fu-Hsing Street, Kweishan, 33333, Taoyuan, Taiwan.
| |
Collapse
|
25
|
Wang W, Sun W, Gao X, Peng L, Lin L, Xiao K, Liu Y, Di X, Zhu S, Chen H, Zhou L. The preventive effects of colony-stimulating factor 1 receptor (CSF-1R) inhibition on bladder outlet obstruction induced remodeling. Neurourol Urodyn 2022; 41:787-796. [PMID: 35170790 DOI: 10.1002/nau.24896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Bladder outlet obstruction (BOO) is a common problem that can affect bladder structure and function. Currently, there is no effective drugs available to prevent BOO-induced remodeling. Previous reports have demonstrated that the pathogenesis of BOO is associated with macrophage infiltration and polarization, which is physiologically dependent on colony-stimulating factor 1 receptor (CSF-1R) activation. Here we utilized a highly selective CSF-1R inhibitor, GW2580, to determine its preventive effects on BOO-induced remodeling. METHODS A total of 24 Sprague-Dawley rats were randomly divided into sham, BOO + vehicle, and BOO + GW2580 group. GW2580 or vehicle control was administrated by oral gavage at daily doses of 40 mg/kg for 6 weeks. Bladder samples were collected for histopathology, immunohistochemistry, immunofluorescence, western blotting, and flow cytometry analysis. RESULTS Our results demonstrated that bladder fibrosis was ameliorated by GW2580 compared with the vehicle group (22.01% ± 5.13% vs. 32.15% ± 7.24%, p < 0.01). Furthermore, treatment with GW2580 induced an inhibition of macrophage infiltration (4.41% ± 1.28% vs. 13.57% ± 3.42%, p < 0.001) and M2 macrophage polarization (10.67% ± 4.15% vs. 28.59% ± 6.38%, p < 0.001). There was also a decrease of profibrotic F4/80+ α-smooth muscle actin+ (α-SMA+ ) macrophage to myofibroblast transition (9.11% ± 2.58% vs. 17.33% ± 4.01%, p < 0.001) and CD163+ TGF-β1+ cells (7.68% ± 2.10% vs. 14.17% ± 4.09%, p < 0.01) in the GW2580 group when compared with the vehicle group. CONCLUSIONS In summary, our findings showed that GW2580 is a worthwhile candidate for a follow-up study to test in the treatment of BOO-induced remodeling.
Collapse
Affiliation(s)
- Wei Wang
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Wenjin Sun
- Department of General Practice, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoshuai Gao
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Liao Peng
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Lede Lin
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Kaiwen Xiao
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Liu
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Xingpeng Di
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Shiyu Zhu
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Huiling Chen
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Liang Zhou
- Laboratory of Reconstructive Urology, Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
26
|
Yang JH, Choi HP, Niu W, Azadzoi KM. Cellular Stress and Molecular Responses in Bladder Ischemia. Int J Mol Sci 2021; 22:ijms222111862. [PMID: 34769293 PMCID: PMC8584445 DOI: 10.3390/ijms222111862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 11/16/2022] Open
Abstract
The concept of bladder ischemia as a contributing factor to detrusor overactivity and lower urinary tract symptoms (LUTS) is evolving. Bladder ischemia as a consequence of pelvic arterial atherosclerosis was first documented in experimental models and later in elderly patients with LUTS. It was shown that early-stage moderate ischemia produces detrusor overactivity, while prolonged severe ischemia provokes changes consistent with detrusor underactivity. Recent studies imply a central role of cellular energy sensors, cellular stress sensors, and stress response molecules in bladder responses to ischemia. The cellular energy sensor adenosine monophosphate-activated protein kinase was shown to play a role in detrusor overactivity and neurodegeneration in bladder ischemia. The cellular stress sensors apoptosis signal-regulating kinase 1 and caspase-3 along with heat shock proteins were characterized as important contributing factors to smooth muscle structural modifications and apoptotic responses in bladder ischemia. Downstream pathways seem to involve hypoxia-inducible factor, transforming growth factor beta, vascular endothelial growth factor, and nerve growth factor. Molecular responses to bladder ischemia were associated with differential protein expression, the accumulation of non-coded amino acids, and post-translational modifications of contractile proteins and stress response molecules. Further insight into cellular stress responses in bladder ischemia may provide novel diagnostic and therapeutic targets against LUTS.
Collapse
Affiliation(s)
- Jing-Hua Yang
- Department of Surgery, Boston University School of Medicine, Boston, MA 02118, USA;
- Proteomics Laboratory, VA Boston Healthcare System, Boston, MA 02130, USA;
| | - Han-Pil Choi
- Proteomics Laboratory, VA Boston Healthcare System, Boston, MA 02130, USA;
| | - Wanting Niu
- Research Section, VA Boston Healthcare System, Boston, MA 02130, USA;
| | - Kazem M. Azadzoi
- Departments of Urology and Pathology, VA Boston Healthcare System and Boston University School of Medicine, Boston, MA 02130, USA
- Correspondence: ; Tel.: +1-(857)-364-5602
| |
Collapse
|
27
|
Qiu Y, Xing Z, Guo Z, Liu Z. Upregulation of AQP2 mediated by transcription factor FOXO1 inhibits TGF-β-induced fibrosis in human urothelial cells. Exp Ther Med 2021; 22:1388. [PMID: 34650636 PMCID: PMC8506930 DOI: 10.3892/etm.2021.10824] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/11/2021] [Indexed: 11/05/2022] Open
Abstract
Bladder outlet obstruction (BOO) is a common urological disease, and inhibition of TGF-β-induced bladder tissue fibrosis may serve as an alternative strategy for BOO treatment. Aquaporin (AQP)2 was reported to be aberrantly expressed in rat BOO, but its specific role was not clarified. The aim of the present study was to explore the role of AQP2 in TGF-β-induced urothelial cell fibrosis and elucidate the potential underlying mechanism. The SV-HUC-1 human urinary tract epithelial cell line was treated with TGF-β1 to establish an in vitro model of bladder fibrosis. Cell Counting Kit-8 and wound healing assays were performed to measure cell viability and migration, respectively. Cell transfection was conducted to silence/overexpress AQP2 and Forkhead box O1 (FOXO1). Protein expression was measured using western blotting. Luciferase reporter and chromatin immunoprecipitation assays were used to verify the predicted interaction between AQP2 and FOXO1. The present study found that AQP2 expression was downregulated in TGF-β1-treated urothelial cells. Overexpression of AQP2 significantly suppressed cell viability, migration and epithelial-to-mesenchymal transition in TGF-β1-treated SV-HUC-1 cells. In addition, FOXO1 overexpression exerted similar effects as AQP2 overexpression on TGF-β-treated SV-HUC-1 cells, but these changes were partially abolished by AQP2 knockdown. It was also found that FOXO1 was able to bind to the AQP2 promoter and regulate AQP2 expression. In conclusion, the transcription factor FOXO1 may upregulate AQP2 expression, thereby inhibiting TGF-β-induced fibrosis in human urothelial cells. The findings of the present study may provide a novel potential strategy for the clinical treatment of BOO by targeting AQP2.
Collapse
Affiliation(s)
- Yue Qiu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Zhaoquan Xing
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Zhaoxin Guo
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Zhaoxu Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| |
Collapse
|
28
|
Şimşek A, Danacıoğlu YO, Arıkan Y, Özdemir O, Yenice MG, Atar FA, Taşçı Aİ. Perineoscopic vesicourethral reconstruction: A novel surgical technique for anastomotic stricture following radical prostatectomy. Turk J Urol 2021; 47:51-57. [PMID: 33016872 DOI: 10.5152/tud.2020.20372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 08/17/2020] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Vesicourethral anastomotic stenosis (VUAS) is frequently seen after prostate surgery because of various operative and postoperative factors. In this study, we aimed to present our results of perineoscopic bladder neck reconstruction, which is a new technique of the perineal approach in the treatment of patients with VUAS after prostate cancer surgery. MATERIAL AND METHODS Sixteen consecutive patients who underwent perineoscopic bladder neck reconstruction in our clinic between July 2017 and March 2019 were included in the study. Demographic characteristics, surgical history, postoperative continence status, and additional treatment requirements were recorded. Perineoscopic surgery is defined as the visualization of the surgical site with instruments used in laparoscopy and the surgeon performing the entire operative procedure through the screen. RESULTS The mean number of preoperative endoscopic bladder neck resections of the patients was 7±5.1, with a history of suprapubic cystostomy in 7 (43.7%) and radiotherapy in 5 (31.2%) patients before surgery. The mean surgical time was 126.2±13.1 min. The mean follow-up period was 13.2±6.8 months, and the success rate was 81.25%. During follow-up, two (12.5%) patients received perineoscopic re-do reconstruction because of stricture recurrence, and one (6.2%) patient was included in a urethral dilatation program. CONCLUSION Improving visualization and ergonomics with the perineoscopic approach can increase the success rate of bladder neck reconstruction in comparison with the standard approach. In addition, the lack of need for expanded dissection (corporal separation, inferior pubectomy) reduces postoperative complication rates.
Collapse
Affiliation(s)
- Abdulmuttalip Şimşek
- Department of Urology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Yavuz Onur Danacıoğlu
- Department of Urology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Yusuf Arıkan
- Department of Urology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Osman Özdemir
- Department of Urology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Mustafa Gürkan Yenice
- Department of Urology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Feyzi Arda Atar
- Department of Urology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Ali İhsan Taşçı
- Department of Urology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| |
Collapse
|
29
|
Wang N, Lu L, Cao QF, Qian S, Ding J, Wang C, Duan H, Shen H, Qi J. Partial inhibition of activin receptor-like kinase 4 alleviates bladder fibrosis caused by bladder outlet obstruction. Exp Cell Res 2021; 406:112724. [PMID: 34237300 DOI: 10.1016/j.yexcr.2021.112724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 06/22/2021] [Accepted: 06/29/2021] [Indexed: 12/17/2022]
Abstract
The bladder undergoes profound structural alterations after bladder outlet obstruction (BOO), characterized by hypertrophy of the bladder wall and accumulation of extracellular matrix (ECM). Transforming growth factor-β (TGF-β) has been found to promote fibrosis of the bladder induced by partial bladder outlet obstruction (pBOO). Activin receptor-like kinase 4 (ALK4) is a downstream receptor of the TGF-β superfamily. However, the role of the ALK4-Smad2/3 pathway in the pathogenesis of bladder fibrosis caused by pBOO remains unknown. This study focused on learning the role of ALK4 in the process of bladder fibrosis caused by pBOO. The pBOO mice models showed that ALK4 expression was found to upregulate in the wild-type bladder 6 weeks after pBOO compared to control group. Then, mice with heterozygous knockout of the ALK4 gene (ALK4+/-) were generated. Histological analysis and Western blot (WB) results showed significant suppression of collagen expression in the bladders of ALK4+/- mice after pBOO compared with WT mice. WB also showed that ALK4+/- mice demonstrated significant suppression of phosphorylated Smad2/3 (p-Smad2/3) expression in the bladder 6 weeks after pBOO but not of phosphorylated extracellular signal-regulated kinase, c-Jun N-terminal kinase or protein 38 (p-ERK, p-JNK, p-P38) expression. This effect might have occurred through partial inactivation of the Smad2/3 signaling pathway. In vitro, ALK4 overexpression promoted collagen production in cultured BSMCs and activated the Smad2/3 signaling pathway. Taken together, our results demonstrated that ALK4 insufficiency alleviated bladder fibrosis in a mouse model of pBOO partly by suppressing Smad2/3 activity.
Collapse
Affiliation(s)
- Ning Wang
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China; Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Lu Lu
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China
| | - Qi Feng Cao
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Subo Qian
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Jie Ding
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Chen Wang
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Huangqi Duan
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Haibo Shen
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
| | - Jun Qi
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
| |
Collapse
|
30
|
Wang W, Ai J, Liao B, Xiao K, Lin L, Chen H, Zhou L. The roles of MCP-1/CCR2 mediated macrophage recruitment and polarization in bladder outlet obstruction (BOO) induced bladder remodeling. Int Immunopharmacol 2021; 99:107947. [PMID: 34311189 DOI: 10.1016/j.intimp.2021.107947] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/26/2021] [Accepted: 06/29/2021] [Indexed: 02/08/2023]
Abstract
Bladder outlet obstruction (BOO) can lead to alternation of bladder structure and function, known as bladder remodeling. Macrophage is a heterogeneous cell type and implicated in immunity regulating and tissue repairment. The relationship between macrophage and BOO remains unclear. We determined the pivotal role of macrophage recruitment and polarization in bladder remodeling. Sprague-Dawley rats underwent surgical operation of a BOO for either 1, 3, 6 weeks and were compared with sham-operated rats. The BOO rats in the experimental group were orally administrated with 5 mg/kg RS-504393, a C-C chemokine receptor (CCR2) antagonist, for 6 weeks, and the rats in the control group were treated with vehicle. Bladder tissues were harvested for assays of flow cytometry, quantitative reverse transcription polymerase chain reaction, histological examinations, immunohistochemistry staining and immunofluorescence. After induction of BOO, M1 macrophages were predominantly observed at inflammatory stage while M2 macrophages were mainly found during fibrosis stage. Flow cytometry analysis revealed that the ratio of M1/M2 significantly increased at 3 weeks (P = 0.0013) when compared to the sham-operated group. Interestingly, our results showed that M2 macrophages promoted BOO-induced fibrosis through indirectly secreting TGF-β and directly transforming to collagen-producing myofibroblast. Additionally, RS-504393 treatment significantly decreased the number of M1 and M2 macrophage infiltration in bladder tissue, and bladder fibrosis was attenuated by RS-504393 treatment compared with that in the vehicle-treated rats. In summary, macrophages play a pivotal role in bladder remodeling and targeting MCP-1/CCR2 signaling pathway might be a therapeutic strategy for human bladder fibrosis.
Collapse
Affiliation(s)
- Wei Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Banghua Liao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Kaiwen Xiao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Lede Lin
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Huiling Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Liang Zhou
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
| |
Collapse
|
31
|
BOO induces fibrosis and EMT in urothelial cells which can be recapitulated in vitro through elevated storage and voiding pressure cycles. Int Urol Nephrol 2021; 53:2007-2018. [PMID: 34232473 DOI: 10.1007/s11255-021-02942-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 06/30/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE To determine the unique contributions from elevated voiding and storage pressures in the development of fibrosis and the epithelial-to-mesenchymal transition (EMT) in urothelial cells, and how progressive BOO pressure cycling is an important mechanical cue leading to these pathological changes. MATERIALS AND METHODS Urothelial cells isolated from control, SHAM, 2 (acute)- or 6 (chronic)-week BOO rats treated with an inflammasome inhibitor or no drug. Total RNA was isolated and RT-PCR was conducted with custom primers for pro-fibrotic and EMT genes. In separate experiments, a rat urothelial cell line was exposed to cyclic pressure regimes characteristic of acute and chronic BOO in the presence or absence of an inflammasome inhibitor. Following exposure, RT-PCR was conducted, collagen content was determined and intracellular caspase-1 activity was measured. RESULTS Urothelial cells isolated from acute and chronic BOO rat models demonstrated expression of pro-fibrotic and EMT genes. Similarly, MYP3 rat urothelial cells subjected to pressure cycling regimes that reflect intravesical pressures in the acute or chronic BOO bladder also demonstrated increased expression of pro-fibrotic and EMT genes, along with elevated soluble collagen. Treatment with inflammasome inhibitors reduced expression of pro-fibrotic genes in the rat model and pressure cycling model but had a limited effect on EMT. CONCLUSION These results indicate that acute and chronic BOO pressure cycling are essential in the initiation and progression of fibrosis in the bladder via the NLRP3 inflammasome, but also provide new evidence that there is also an alternative NLRP3-independent pathway leading to EMT and fibrosis.
Collapse
|
32
|
Regulation of bladder dynamic elasticity: a novel method to increase bladder capacity and reduce pressure using pulsatile external compressive exercises in a porcine model. Int Urol Nephrol 2021; 53:1819-1825. [PMID: 34212270 DOI: 10.1007/s11255-021-02863-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/11/2021] [Indexed: 12/27/2022]
Abstract
PURPOSE Dynamic elasticity is a biomechanical property of the bladder in which muscle compliance can be acutely adjusted through passive stretches and reversed with active contractions. The aim of this study was to determine if manipulating dynamic elasticity using external compression could be used as a novel method to acutely increase bladder capacity and reduce bladder pressure in a porcine model. METHODS Ex vivo experiment: bladders underwent continuous or pulsatile compression after establishing a reference pressure at bladder capacity. Bladders were then filled back to the reference pressure to determine if capacity could be acutely increased. In-vivo experiments: bladders underwent five cycles of pulsatile external compression with ultrasound confirmation. Pre and post-compression pressures were measured, and pressure was measured again 10 min post-compression. RESULTS Ex vivo experiment: pulsatile compression demonstrated increased bladder capacity by 16% (p = 0.01). Continuous compression demonstrated increased capacity by 9% (p < 0.03). Comparison of pulsatile to continuous compression showed that the pulsatile method was superior (p = 0.03). In-vivo experiments: pulsatile external compression reduced bladder pressure by 19% (p < 0.00001) with a return to baseline 10 min post-compression. CONCLUSIONS These results suggest that regulation of bladder dynamic elasticity achieved with external compression can acutely decrease bladder pressure and increase bladder capacity. Pulsatile compression was found to be more effective as compared to continuous compression. These results highlight the clinical potential for use of non-invasive pulsatile compression as a therapeutic technique to increase bladder capacity, decrease bladder pressure, and reduce the symptoms of urinary urgency.
Collapse
|
33
|
Yeh CH, Chen BH, Tseng XW, Liao CH, Tsai WK, Chiang HS, Wu YN. Intravesical Instillation of Norketamine, a Ketamine Metabolite, and Induced Bladder Functional Changes in Rats. TOXICS 2021; 9:toxics9070154. [PMID: 34209184 PMCID: PMC8309735 DOI: 10.3390/toxics9070154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/20/2021] [Accepted: 06/25/2021] [Indexed: 12/13/2022]
Abstract
This study aimed to determine the mechanism of ketamine-induced cystitis without metabolism. A total of 24 adult male Sprague-Dawley rats were separated into control, ketamine, and norketamine groups. To induce cystitis, rats in the ketamine and norketamine groups were treated with intravesical instillation of ketamine and norketamine by mini-osmotic pump, which was placed in subcutaneous space, daily for 24 h for 4 weeks. After 4 weeks, all rats were subjected to bladder functional tests. The bladders were collected for histological and pathological evaluation. Compared to control, ketamine treatment demonstrated an increase in the bladder weight, high bladder/body coefficient, contractive pressure, voiding volume, collagen deposition, reduced smooth muscle content, damaged glycosaminoglycan layer, and low bladder compliance. Compared to ketamine, norketamine treatment showed more severe collagen deposition, smooth muscle loss, damaged glycosaminoglycan layer, and increased residual urine. Intravesical administration of ketamine and norketamine induced cystitis with different urodynamic characteristics. Norketamine treatment caused more severe bladder dysfunction than ketamine treatment. Direct treatment of the bladder with norketamine induced symptoms more consistent with those of bladder outlet obstruction than ketamine cystitis. Detailed studies of cellular mechanisms are required to determine the pathogenesis of ketamine cystitis.
Collapse
Affiliation(s)
- Chung-Hsin Yeh
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan; (C.-H.Y.); (C.-H.L.)
- Division of Urology, Department of Surgery, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City 111, Taiwan
| | - Bo-He Chen
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, New Taipei City 242, Taiwan;
| | - Xiao-Wen Tseng
- Program in Pharmaceutical Biotechnology, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan;
| | - Chun-Hou Liao
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan; (C.-H.Y.); (C.-H.L.)
- Division of Urology, Department of Surgery, Cardinal Tien Hospital, New Taipei City 231, Taiwan
| | - Wei-Kung Tsai
- Department of Urology, Mackay Memorial Hospital, Taipei City 104, Taiwan;
- Ph.D. Program in Nutrition and Food Science, Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, New Taipei City 242, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
- Mackay Junior College of Medicine, Nursing, and Management, Taipei City 252, Taiwan
| | - Han-Sun Chiang
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, New Taipei City 242, Taiwan;
- Division of Urology, Department of Surgery, Cardinal Tien Hospital, New Taipei City 231, Taiwan
- Department of Urology, Fu Jen Catholic University Hospital, New Taipei City 243, Taiwan
- Correspondence: (H.-S.C.); (Y.-N.W.); Tel.: +886-2-29052202 (H.-S.C.); +886-2-29056442 (Y.-N.W.); Fax: +886-2-29017391 (H.-S.C.); +886-2-29056100 (Y.-N.W.)
| | - Yi-No Wu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan; (C.-H.Y.); (C.-H.L.)
- Correspondence: (H.-S.C.); (Y.-N.W.); Tel.: +886-2-29052202 (H.-S.C.); +886-2-29056442 (Y.-N.W.); Fax: +886-2-29017391 (H.-S.C.); +886-2-29056100 (Y.-N.W.)
| |
Collapse
|
34
|
Dietary reversal reverts diet-induced alterations in obstructed bladders of Wistar rats. Nutrition 2021; 89:111346. [PMID: 34166895 DOI: 10.1016/j.nut.2021.111346] [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: 02/10/2021] [Revised: 04/26/2021] [Accepted: 05/09/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the effects of diet reversal to standard chow on diet-induced changes in structure and function of normal and obstructed bladders in male Wistar rats. METHODS Eighty animals were equally divided into sham-surgery and bladder outlet obstruction (BOO) dietary groups and fed standard chow (control), high-carbohydrate, high-fat, and high-protein diets. BOO groups had surgically induced BOO, whereas sham surgery was performed on sham groups at the end of week 8. Animals were continued on the treatment diets for 4 wk after surgery, then the diets were all changed to standard chow for the remainder of the study period. Bladder weight, detrusor contractility, Rho-associated protein kinase (Rho-kinase), and myosin light chain kinase were determined. Polymerase chain reaction was used to assay for transforming growth factor-β, connecting tissue growth factor, hypoxia-inducible factor-1α, and platelet-derived growth factor subunit A levels in the bladder. C-reactive protein, insulin-like growth factor-1, nerve growth factor, and C-X-C motif chemokine ligand 12 concentrations were determined by enzyme-linked immunosorbent assay. The collagen content of the bladder was estimated by liquid chromatography/mass spectrometry. RESULTS Reversal of diet to standard chow resulted in reversal of diet-induced changes in all variables measured in obstructed bladders. High-fat-diet-induced alterations in normal bladders were also reversed. CONCLUSION The results suggested that in obstructed bladders of animals, reversal of the diet could reverse all diet-associated changes that increase inflammation and fibrosis in obstructed bladders. This is especially important in changes related to high consumption of fatty diets and associated lower urinary tract symptoms.
Collapse
|
35
|
Chen L, Lv L, Zhang L, Gao Z, Liu Y, Wang S, Zhou N, Xia Y, Cui J, Jiang X, Zhang X, Li Y, Shi B. Metformin ameliorates bladder dysfunction in a rat model of partial bladder outlet obstruction. Am J Physiol Renal Physiol 2021; 320:F838-F858. [PMID: 33645317 DOI: 10.1152/ajprenal.00625.2020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/23/2021] [Indexed: 12/12/2022] Open
Abstract
Alteration of bladder morphology and function was the most important consequence of bladder outlet obstruction (BOO). Using a rat model of partial BOO (pBOO), we found that rats treated with metformin showed lower baseline pressures with a reduced inflammatory reaction in the early phase (2 wk) after pBOO. The NLR family pyrin domain containing 3 inflammasome pathway was inhibited in pBOO rat bladders with treatment of metformin in the early phase. Metformin reduced the activity of NLR family pyrin domain containing 3 in primary urothelial cells. In the chronic phase (9 wk after pBOO), metformin treatment ameliorated bladder fibrosis and improved the reduced compliance. Treatment with metformin suppressed the activation of Smad3 and compensated the diminished autophagy in 9-wk pBOO rat bladders. Autophagy was inhibited with upregulation of profibrotic proteins in primary fibroblasts from chronic pBOO bladders, which could be restored by administration of metformin. The antifibrotic effects of metformin on fibroblasts were diminished after silencing of AMP-activated protein kinase or light chain 3B. In summary, this study elucidates that oral administration of metformin relieves inflammation in the bladder during the early phase of pBOO. Long-term oral administration of metformin can prevent functional and histological changes in the pBOO rat bladder. The current study suggests that metformin might be used to prevent the development of bladder dysfunction secondary to BOO.NEW & NOTEWORTHY The present study in a rat model showed that oral administration of metformin alleviated inflammation following partial bladder outlet obstruction in the early phase and ameliorated bladder fibrosis as well as bladder dysfunction by long-term treatment. Our study indicated that metformin is a potential drug to inhibit bladder remodeling and alleviate bladder dysfunction. Clinical trials are needed to validate the effect of metformin on the bladder dysfunction and bladder fibrosis in the future.
Collapse
Affiliation(s)
- Lipeng Chen
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Linchen Lv
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Lekai Zhang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Zhengdong Gao
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Yaxiao Liu
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
- Laboratory of Basic Medical Sciences, Qilu Hospital, Cheeloo College of Medicine, Jinan, China
| | - Shuai Wang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Nan Zhou
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Yangyang Xia
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Jianfeng Cui
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Xuewen Jiang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| | - Xiulin Zhang
- Department of Urology, Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yan Li
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, 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, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, China
| |
Collapse
|
36
|
Lu Y, Fog-Poulsen K, Nørregaard R, Djurhuus JC, Olsen LH. Gender-dependent bladder response to one-day bladder outlet obstruction. J Pediatr Urol 2021; 17:170.e1-170.e10. [PMID: 33487568 DOI: 10.1016/j.jpurol.2020.12.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 11/22/2020] [Accepted: 12/28/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Development of bladder fibrosis, loss of compliance, and voiding dysfunction are among the severe consequences of various lower urinary conditions, for example, bladder outlet obstruction (BOO), neurogenic bladder, and radiotherapy to the pelvic area. The bladder remodelling results in significant changes in bladder function and architecture, and may ultimately be deleterious for kidney function. The molecular signals underlying pathologic bladder remodelling, as well as the impact of gender, remain poorly understood. OBJECTIVE To investigate the bladder remodelling after one day BOO, whether the remodelling is different between different bladder sections, and whether genders may affect the remodelling. STUDY DESIGN Thirty male and 30 female C57BL/6NRj mice were randomly divided into Control, Sham and BOO groups with ten mice per group. A 24-h total urethral obstruction was performed at the proximal urethra. Histological changes were observed via H&E, trichrome and immunohistochemistry staining. Harvested bladders were divided into upper and lower sections for analysis. Protein and gene expression were detected by Western blotting and qPCR. RESULTS No significant changes in bladder wall thickness were observed following BOO, while increased bladder mass after BOO was found in female mice only. We detected FN and ⍺-SMA upregulation in the male upper bladder segment. Female BOO mice bladders showed increased α-SMA expression in both bladder segments, but no difference of FN was observed in either bladder segments. BOO-induced upregulation of TGF-β and Gremlin were detected in both male and female bladders, while downregulation of BMP-7 was detected only in male bladders. Furthermore, phosphorylation of both SMAD2/3 and SMAD1/5/9 were increased in male bladders following BOO, whereas female mice exhibited increased pSMAD2/3 in the upper and increased pSMAD1/5/9 in the lower bladder segment. CONCLUSIONS Our data indicate that some specific proteins and growth factors were detected as early alterations of tissue which may lead to fibrosis. In addition, the males tended to have more pronounced response than females. However, the causes and consequences of the findings need to be further investigated.
Collapse
Affiliation(s)
- Yutao Lu
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark.
| | | | - Rikke Nørregaard
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | | | - L Henning Olsen
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark; Department of Urology, Aarhus University Hospital, Aarhus N, Denmark
| |
Collapse
|
37
|
Gao Y, Liu P, He F, Yang X, Wu R, Chen W, Li L, Yang Z. Fibroblast Growth Factor 2 Promotes Bladder Hypertrophy Caused by Partial Bladder Outlet Obstruction. Front Cell Dev Biol 2021; 9:630228. [PMID: 33859983 PMCID: PMC8042216 DOI: 10.3389/fcell.2021.630228] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/10/2021] [Indexed: 12/05/2022] Open
Abstract
Non-invasive biomarkers to identify patients with bladder outlet obstruction (BOO)-related dysfunction are still needed to guide clinical practice. The current study aims to investigate molecular alterations and biomarkers associated with partial BOO (PBOO) in rats. Sprague–Dawley rats were used to establish the BOO model. Serum samples from 60 patients with benign prostatic hyperplasia (BPH) were used for enzyme-linked immunosorbent assay analysis. RNA sequencing and TMT-labeling proteomic analyses were conducted to identify molecular alterations. Masson’s trichrome, H&E, and immunohistochemical staining and western blotting were conducted by using conventional methods following the manufacturer’s instructions. Rats with PBOO experienced hypertrophy of smooth muscle cells and hyperplasia of interstitial cells during the first 4 weeks after the initiation of obstruction. Four weeks later, rats with PBOO showed activation of the adaptive immune response, cell death and apoptosis. The levels of brain-derived neurotrophic factor (BDNF) and fibroblast growth factor 2 (FGF2) in the serum gradually increased in the first 4 weeks and gradually decreased after week 4. FGF2 levels slightly correlated with prostate volume (R = 0.156, P = 0.0028) but not with age or BMI in BPH patients. No correlations were found between BDNF levels and prostate volume, age or BMI. BOO induces a change from bladder compensation to decompensation at week 4. FGF2 is involved in the development of hypertrophy in the PBOO bladder and shows a positive correlation with prostate volume in BPH patients.
Collapse
Affiliation(s)
- Ye Gao
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Peilin Liu
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Fan He
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Xingliang Yang
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Ronghua Wu
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Wei Chen
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Longkun Li
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| | - Zhenxing Yang
- Department of Urology, Second Affiliated Hospital, Army Medical University, Chongqing, China
| |
Collapse
|
38
|
Expression of Toll-Like Receptors in the Animal Model of Bladder Outlet Obstruction. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6632359. [PMID: 33381567 PMCID: PMC7749780 DOI: 10.1155/2020/6632359] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/12/2020] [Accepted: 11/19/2020] [Indexed: 11/18/2022]
Abstract
Introduction Bladder outlet obstruction (BOO) occurs in more than 20 percent of the adult population and may lead to changes in the structure and function of the bladder. The main objective of the study was to evaluate the expression of Toll-like receptor 4 (TLR 4) and Toll-like receptor 9 (TLR 9) in the animal model of BOO as potential triggers of the inflammation phase in the bladder. In addition, the modulating effect of alpha-1 adrenergic antagonist (tamsulosin) on TLR 4 and TLR 9 expression and inflammatory markers was assessed. Material and Methods. Thirty-two male, 9-week-old Sprague Dawley rats were randomly divided into 4 groups: SOP—sham-operated rats with a placebo (water); SOB—sham-operated rats with an alpha-1 adrenergic antagonist; BOOP—rats with BOO and a placebo; and BOOB—rats with BOO and an alpha-1 adrenergic antagonist. The rats were given a placebo or alpha-1 adrenergic antagonist for 15 days. Next, urine and the bladder were collected from the rats for histopathological and biochemical study. Results Histopathological analysis showed chronic inflammation without acute inflammation in the bladder. TLR 4 showed positive cytoplasmic reactivity in the urothelium and the smooth muscles of the bladder. TLR 9 showed positive cytoplasmic reactivity only in the urothelium. BOO caused an increase in TLR 4 and TLR 9 expression. Furthermore, treatment with an alpha-1 adrenergic antagonist had no significant effect on TLR 4 and TLR 9 expression in rats with BOO. BOO caused a significant increase in urine concentration of interleukin 6 (IL-6), while alpha-1 antagonist reduced the urine concentration of IL-6 and the concentration of interleukin 18 (IL-18). Conclusions The results suggest the participation of TLR 4 and TLR 9 receptors in the induction of inflammation in the bladder, which is the first phase in the development of pathophysiological changes in BOO.
Collapse
|
39
|
Expression of NGF, MCP-1, uroplakin III, and NOS in bladder urothelium after partial urethral obstruction in rats. J Pediatr Urol 2020; 16:806.e1-806.e14. [PMID: 32994092 DOI: 10.1016/j.jpurol.2020.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 09/04/2020] [Accepted: 09/14/2020] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Although several cytokines, chemokines, and growth factors have been suggested to play a role in the development of bladder fibrosis and functional changes, the mechanisms that are effective in the pathogenesis of partial bladder outlet obstruction (pBOO)-induced bladder fibrosis are not well understood. OBJECTIVE We investigated the expressions of nerve growth factor (NGF), monocyte chemoattractant protein-1 (MCP-1), uroplakin III (URPIII), inducible nitric oxide synthase (iNOS), and endothelial NOS (eNOS) that may be involved in fibrosis in rats with partial urethral obstruction for 1, 2 and 3 weeks, and the changes in the associated ischemic and inflammatory processes. After 1, 2, and 3 weeks of pBOO, blood samples were collected for assessment of renal function from the rats under anesthesia. The bladders were dissected for the tissue antioxidant enzyme activities and lipid peroxidation, including malondialdehyde (MDA), superoxide dismutase (SOD), total antioxidant status (TAS) and total oxidant status (TOS). The immunohistochemical studies were performed. Histopathologically, the number of urothelial layers was calculated and the thickness of the detrusor smooth muscle and lamina propria were quantitatively measured. Additionally, the edema and congestion in the submucosa were evaluated. STUDY DESIGN Twenty-eight male Sprague-Dawley rats were used in this study. Three separate experimental groups of pBOO (1 week [n = 7], 2 weeks [n = 7], and 3 weeks [n = 7]) were created, with an additional sham-operated control group (n = 7). RESULTS The MDA levels increased in pBOO groups. The SOD values were decreased in the pBOO group for 1 week, and higher in the 3-week pBOO group. The TAS levels were increased in the 3 week pBOO group. The TOS levels increased in the pBOO groups. The number of urothelial layers was decreased in pBOO groups. The lamina propria, the smooth muscle thickness, edema and congestion were increase in the 1 and 2 week pBOO groups. The NGF and MCP-1 expression was increased in the 1-week and 2-week pBOO groups. The expression of URPIII in the epithelium gradually increased in the pBOO groups. In the pBOO groups, iNOS expression in the epithelium cells was significantly elevated. However, the eNOS expression was also significantly increased in the 2 week pBOO group. CONCLUSION Our study shows that overexpression of immunohistochemical parameters together with the negative effects of ischemic and inflammatory processes that subjected to pBOO for 1, 2 and 3 weeks may play a potential role in detrusor fibrosis in the rat bladders induced by pBOO. However, understanding of the immunohistochemical parameters investigated in this experimental study is limited, and further studies targeting their relationship to pBOO could help us develop new strategies.
Collapse
|
40
|
He Q, Lin Y, Liao B, Zhou L, Ai J, Jin X, Li H, Wang K. The role of interleukin-6/interleukin-6 receptor signaling in the mechanical stress-induced extracellular matrix remodeling of bladder smooth muscle. Arch Biochem Biophys 2020; 702:108674. [PMID: 33189652 DOI: 10.1016/j.abb.2020.108674] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 02/08/2023]
Abstract
Extracellular matrix (ECM) remodeling is strongly associated with pathological changes induced by bladder outlet obstruction (BOO). In this study, we investigated the role of interleukin-6 (IL-6) in mechanical stretch-induced ECM remodeling of bladder smooth muscle. To construct a BOO animal model, the urethras of female Sprague-Dawley rats were partially ligated. In addition, increased hydrostatic pressure and mechanical stretching were applied to human bladder smooth muscle cells (HBSMCs) as an in vitro model. The expression of rat inflammatory genes was analyzed using DNA microarrays. We used quantitative RT-PCR (qRT-PCR) and immunohistochemical staining to detect IL-6 in the bladder smooth muscle of rats. To determine the specificity of IL-6, small interfering ribonucleic acid (siRNA) transfection and IL-6 receptor inhibitor (SC144) were applied to HBSMCs. qRT-PCR with siRNA transfection was also used to determine the specificity of downstream signaling. Moreover, western blotting was conducted to verify the expression results. In the animal model, the expression of ECM components and inflammatory genes was significantly upregulated. The expression of IL-6 was increased at both the mRNA level and the protein level in BOO rats. In vitro, hydrostatic pressure, and mechanical stretching both promoted MMP7 and MMP11 expression. Additionally, downregulation of collagen III occurred in both the hydrostatic pressure group and the mechanical stretch group. However, the expression of fibronectin exhibited opposing patterns between the hydrostatic pressure and mechanical stretch groups. The application of targeted siRNA transfection and an inhibitor (SC144) that targeted IL-6 significantly reversed the changes in MMP7 and MMP11 under mechanical stress and partially increased the expression of collagen III and fibronectin. In summary, IL-6 participated in the ECM remodeling of HBSMCs under mechanical stress, indicating that IL-6 may play an essential role in BOO.
.
Collapse
Affiliation(s)
- Qing He
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yifei Lin
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Banghua Liao
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Liang Zhou
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xi Jin
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Hong Li
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Kunjie Wang
- Department of Urology, Institute of Urology, Laboratory of Reconstructive Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
| |
Collapse
|
41
|
Eljamal K, Kajioka S, Maki T, Ushijima M, Kawagoe K, Lee K, Sasaguri T. New mouse model of underactive bladder developed by placement of a metal ring around the bladder neck. Low Urin Tract Symptoms 2020; 13:299-307. [PMID: 33089671 DOI: 10.1111/luts.12359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/30/2020] [Accepted: 10/04/2020] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To develop a new mouse model of underactive bladder (UAB) caused by chronic bladder outlet obstruction (BOO). METHODS BOO was created in 6-week-old male C57BL/6 mice using surgery to loosely place a silver jump ring around the bladder neck of each mouse. Micturition behavior (assessed with a metabolic cage) and cystometry were used to evaluate bladder function at 8 and 16 weeks after BOO. Following completion of the functional studies, the bladders of the mice were excised, weighed, and subjected to histological analysis. RESULTS Micturition behavior analysis showed that mice subjected to BOO for 16 weeks had a lower frequency of micturition (7.3 ± 1.1 vs 12.5 ± 3.0 times/d, P < .05) and volume per void (106.0 ± 0.1 vs 133.9 ± 3.2 μL, P < .05) than mice subjected to BOO for 8 weeks. Cystometry revealed that mice subjected to BOO for 16 weeks had lower baseline pressure (8.4 ± 0.6 vs 14.0 ± 0.7 cmH2 O, P < .01) and micturition pressure (13.9 ± 1.1 vs 42.8 ± 1.7 cmH2 O, P < .05) than mice subjected to BOO for 8 weeks. BOO caused progressive increases in bladder mass and collagen deposition over time. CONCLUSIONS We successfully established a novel mouse model of UAB using surgery to place a silver jump ring loosely on the bladder neck. BOO initially induced bladder overactivity but subsequently resulted in UAB due to deterioration of detrusor smooth muscle contractility and progressive deposition of collagen in the bladder wall.
Collapse
Affiliation(s)
- Kareman Eljamal
- Department of Clinical Pharmacology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shunichi Kajioka
- Department of Clinical Pharmacology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoko Maki
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Miho Ushijima
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kentaro Kawagoe
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ken Lee
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toshiyuki Sasaguri
- Department of Clinical Pharmacology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| |
Collapse
|
42
|
Kadam R, Wiafe B, Metcalfe PD. Mesenchymal stem cells ameliorate partial bladder outlet obstruction-induced epithelial-mesenchymal transition type II independent of mast cell recruitment and degranulation. Can Urol Assoc J 2020; 15:E29-E35. [PMID: 32701447 DOI: 10.5489/cuaj.6501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Partial bladder outlet obstruction (pBOO) results in increased urinary storage pressure and significant morbidity. Increased pressure results in a sequence of programmed events: an initial inflammatory phase, smooth muscle hypertrophy, and fibrosis. Although epithelial-mesenchymal transition (EMT) and mast cell accumulation play intermediary roles in some fibrotic conditions, their role in pBOO has not yet been elucidated. Mesenchymal stem cell (MSC) therapy is emerging as a promising treatment for several conditions. It potently inhibits bladder deterioration after pBOO; however, its mechanism of action is insufficiently understood. Thus, we hypothesize that EMT type II pathway plays a significant role in pBOO, aided by the recruitment and activation of mast cells, and these are potently inhibited by MSCs. METHODS pBOO was surgically induced in female Sprague-Dawley rats and simultaneously treated with MSCs. Treatment effect was determined after two or four weeks and compared to untreated controls. Immunohistochemistry was used to measure markers characteristic of EMT (vimentin, collagenase, and collagen). Whole and degranulated mast cell counts were also performed. RESULTS pBOO resulted in an increased expression of collagenase, vimentin, and collagen. Mast cell recruitment increased proportionately to the length of bladder obstruction. MSC treatment significantly mitigated the EMT type II response, but mast cell recruitment and degranulation were unaffected. CONCLUSIONS Our results demonstrate the involvement of EMT type II in the pathophysiology of pBOO and confirm its mitigation with MSC treatment independent of mast cells response. The observations provide insight into the mechanism of action and have therapeutic ramifications.
Collapse
Affiliation(s)
- Rutuja Kadam
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Bridget Wiafe
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Peter D Metcalfe
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| |
Collapse
|
43
|
van Huizen NA, Ijzermans JNM, Burgers PC, Luider TM. Collagen analysis with mass spectrometry. MASS SPECTROMETRY REVIEWS 2020; 39:309-335. [PMID: 31498911 DOI: 10.1002/mas.21600] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Mass spectrometry-based techniques can be applied to investigate collagen with respect to identification, quantification, supramolecular organization, and various post-translational modifications. The continuous interest in collagen research has led to a shift from techniques to analyze the physical characteristics of collagen to methods to study collagen abundance and modifications. In this review, we illustrate the potential of mass spectrometry for in-depth analyses of collagen.
Collapse
Affiliation(s)
- Nick A van Huizen
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Surgery, Erasmus University Medical Center, 3015 CN, Rotterdam, The Netherlands
| | - Jan N M Ijzermans
- Department of Surgery, Erasmus University Medical Center, 3015 CN, Rotterdam, The Netherlands
| | - Peter C Burgers
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Theo M Luider
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
| |
Collapse
|
44
|
Chen G, Jin X, Gao X, Ai J, Luo D, Zhou L, Xiao K, Li Z, Li H, Wang K. Monocyte Chemotactic Protein-1 Regulates Proliferation and Contractility of Human Bladder Smooth Muscle Cells Under Hydrostatic Pressure. J Interferon Cytokine Res 2020; 40:245-253. [PMID: 32091964 DOI: 10.1089/jir.2019.0186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Guo Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Xi Jin
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Xiaoshuai Gao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Deyi Luo
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Liang Zhou
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Kaiwen Xiao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Zirui Li
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Hong Li
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| | - Kunjie Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), Sichuan University, West China Hospital, Chengdu, Sichuan, P.R. China
| |
Collapse
|
45
|
Kai W, Lin C, Jin Y, Ping-Lin H, Xun L, Bastian A, Arnulf S, Sha-Sha X, Xu L, Shu C. Urethral meatus stricture BOO stimulates bladder smooth muscle cell proliferation and pyroptosis via IL‑1β and the SGK1‑NFAT2 signaling pathway. Mol Med Rep 2020; 22:219-226. [PMID: 32468047 PMCID: PMC7248470 DOI: 10.3892/mmr.2020.11092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 03/25/2020] [Indexed: 11/29/2022] Open
Abstract
Bladder outlet obstruction (BOO), which is primarily caused by benign prostatic hyperplasia, is a common chronic disease. However, previous studies have most commonly investigated BOO using the acute obstruction model. In the present study, a chronic obstruction model was established to investigate the different pathological alterations in the bladder between acute and chronic obstruction. Compared with chronic obstruction, acute obstruction led to increased expression of proliferating cell nuclear antigen and interleukin-1β, which are markers of proliferation and inflammation, respectively. Furthermore, increased fibrosis in the bladder at week 2 was observed. Low pressure promoted mice bladder smooth muscle cell (MBSMC) proliferation, and pressure overload inhibited cell proliferation and increased the proportion of dead MBSMCs. Further investigation using serum/glucocorticoid regulated kinase 1 (SGK1) small interfering RNAs indicated that low pressure may promote MBSMC proliferation by upregulating SGK1 and nuclear factor of activated T-cell expression levels. Therefore, the present study suggested that acute obstruction led to faster decompensation of bladder function and chronic bladder obstruction displayed an enhanced ability to progress to BOO.
Collapse
Affiliation(s)
- Wang Kai
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Chen Lin
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Yang Jin
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - He Ping-Lin
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Liu Xun
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Amend Bastian
- Department of Urology, University of Tübingen, D‑72070 Tübingen, Baden‑Württemberg, Germany
| | - Stenzl Arnulf
- Department of Urology, University of Tübingen, D‑72070 Tübingen, Baden‑Württemberg, Germany
| | - Xing Sha-Sha
- Central Laboratory, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610000, P.R. China
| | - Luo Xu
- Department of Urology, Zunyi Medical University, Guiyang, Guizhou 563000, P.R. China
| | - Cui Shu
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| |
Collapse
|
46
|
Choi JB, Jeon SH, Kwon EB, Bae WJ, Cho HJ, Ha US, Hong SH, Lee JY, Kim SW. The effects of oral administration of the novel muscarinic receptor antagonist DA-8010 on overactive bladder in rat with bladder outlet obstruction. BMC Urol 2020; 20:41. [PMID: 32303205 PMCID: PMC7164290 DOI: 10.1186/s12894-020-00611-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/07/2020] [Indexed: 02/05/2023] Open
Abstract
Background DA-8010 is a novel compound developed for the treatment of overactive bladder (OAB) and urinary incontinence. The aims of this study were to investigate the effects of DA-8010 on OAB in a rat model. Methods Study animals were divided into the following five groups of seven animals each: a sham-operated control group, a control group with partial bladder outlet obstruction (BOO) (OAB group), and three DA-8010 (doses of 0.3 mg/kg/day, 1 mg/kg/day, and 3 mg/kg/day, respectively) with partial BOO groups. Oral administration of the drugs was continued for 14 days after 2 weeks of partial BOO. After 4 weeks of partial BOO, cystometrography was performed in all groups. Additionally, pro-inflammatory cytokines, Rho-kinases, and histology of the bladder were analyzed. Results There was a significant increase in the contraction interval and a decrease in contraction pressure in the 3 mg/kg/day DA-8010 group versus those in the OAB group. Rho kinase was also significantly decreased in the DA-8010 3 mg/kg/day dosage treatment group. The increased ratio of collagen to smooth muscle after partial BOO was significantly attenuated in the DA-8010 3 mg/kg/day dosage group. Conclusions Oral administration of DA-8010 at 3 mg/kg/day improved findings in an OAB rat model induced by partial BOO. Our results suggest that the novel muscarinic receptor antagonist DA-8010 may be a promising drug for treating patients with OAB.
Collapse
Affiliation(s)
- Jin Bong Choi
- Department of Urology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung Hwan Jeon
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eun Bi Kwon
- Korea Bio Medical Science Institute, Seoul, Republic of Korea
| | - Woong Jin Bae
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea and Catholic Integrative Medicine Research Institute, The Catholic University of Korea, Banpo-daero 222, Seocho-gu, Seoul, 06591, Seoul, Republic of Korea
| | - Hyuk Jin Cho
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - U-Syn Ha
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Hoo Hong
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Youl Lee
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sae Woong Kim
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea and Catholic Integrative Medicine Research Institute, The Catholic University of Korea, Banpo-daero 222, Seocho-gu, Seoul, 06591, Seoul, Republic of Korea.
| |
Collapse
|
47
|
Wiafe B, Kadam R, Metcalfe PD. Intraperitoneal administration of mesenchymal stem cells is effective at mitigating detrusor deterioration after pBOO. Am J Physiol Renal Physiol 2020; 318:F549-F556. [PMID: 31904287 DOI: 10.1152/ajprenal.00486.2019] [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: 12/21/2022] Open
Abstract
Partial bladder outlet obstruction (pBOO) results in bladder fibrosis that is initiated by an inflammatory cascade and the decompensation after smooth muscle hypertrophy. We have been using an animal model to develop the hypothesis that mesenchymal stem cells (MSCs) are able to mitigate this cytokine cascade and prevent bladder deterioration. We hypothesized that intraperitoneal administration of MSCs can produce the same effects as intravenously administered cells but may require higher dosing. Intraperitoneal treatment will provide insights into the mechanisms of action and may offer advantages over intravenous administration, as it will permit allow higher doses and potentially reduce systemic exposure. Rats underwent a surgical induction of pBOO and instillation of either 1 × 106 or 5 × 106 commercially acquired MSCs into the peritoneum. RT-PCR, immunohistochemistry, and urodynamics were used to compare treatment groups with controls. pBOO resulted in a marked, statistically significant, upregulation of inflammatory markers in the bladder, including transforming growth factor-β, hypoxia-inducible factor-1α, hypoxia-inducible factor-3α, mammalian target of rapamycin, and collagen types I and III. Moderate but inconsistent levels of downregulation were seen with 1 × 106 MSCs, but excellent and reliable downregulation was seen with 5 × 106 MSCs (P < 0.05). Immunohistochemistry confirmed that protein levels were affected in accordance with mRNA upregulation. Urodynamics demonstrated MSC treatment resulted in whole organ physiological benefits, as they prevented elevations in detrusor pressure. In conclusion, intraperitoneal administration of MSCs resulted in a similar effect as intravenous administration; however, this required a higher dose. This has significant implications for determining the mechanism of action and potential clinical application for human therapy.
Collapse
Affiliation(s)
- Bridget Wiafe
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Rutuja Kadam
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Peter D Metcalfe
- Division of Urology and Pediatric Surgery, University of Alberta, Edmonton, Alberta, Canada
| |
Collapse
|
48
|
Cullingsworth ZE, Klausner AP, Li R, Nagle AS, Carroll AW, Roseman JT, Speich JE. Comparative-fill urodynamics in individuals with and without detrusor overactivity supports a conceptual model for dynamic elasticity regulation. Neurourol Urodyn 2019; 39:707-714. [PMID: 31856359 DOI: 10.1002/nau.24255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 12/06/2019] [Indexed: 12/17/2022]
Abstract
AIMS Dynamic elasticity was previously identified in individuals with overactive bladder (OAB) using comparative-fill urodynamics (UD) and is a biomechanical mechanism for acutely regulating detrusor wall tension. On the basis of this data, a conceptual model of dynamic elasticity regulation mediated through a balance of passive mechanisms and active contractions was constructed. The present study tested this model by determining whether individuals with detrusor overactivity (DO) exhibit less dynamic elasticity than individuals without DO. METHODS Individuals with and without urgency based on International Consultation on Incontinence Questionnaire-OAB surveys were prospectively enrolled in a comparative-fill UD study. An initial fill defined the presence or absence of DO and determined cystometric capacity. Three additional fills were employed with either passive emptying via a catheter or active voiding. To identify dynamic elasticity, average filling pressures (Pves ) were compared for fill 1 (before strain softening), fill 2 (after strain softening), and fill 3 (after active void). A dynamic elasticity index was defined. RESULTS From 28 participants, those without DO showed decreased Pves during filling after strain softening and restored Pves during filling following active voiding, revealing dynamic elasticity. Participants with DO did not show dynamic elasticity. A dynamic elasticity index less than 1.0 cmH2 O/40% capacity was identified in 2 out of 13 participants without DO and 9 out of 15 with DO, revealing a significant association between DO and reduced/absent dynamic elasticity (P = .024). CONCLUSIONS This study supports a conceptual model for dynamic elasticity, a mechanism to acutely regulate detrusor wall tension through a balance of competing active contractile and passive strain mechanisms. Improved understanding of this mechanistic model may help us to identify novel treatment strategies for OAB.
Collapse
Affiliation(s)
- Zachary E Cullingsworth
- Department of Mechanical and Nuclear Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia
| | - Adam P Klausner
- Division of Urology, Department of Surgery, Virginia Commonwealth University School of Medicine, Richmond, Virginia
| | - Rui Li
- Department of Mechanical and Nuclear Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia
| | - Anna S Nagle
- Department of Mechanical and Nuclear Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia
| | - Ashley W Carroll
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, Virginia
| | - John T Roseman
- Division of Urology, Department of Surgery, Virginia Commonwealth University School of Medicine, Richmond, Virginia
| | - John E Speich
- Department of Mechanical and Nuclear Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia
| |
Collapse
|
49
|
Chermansky C, Mitsogiannis I, Abrams P, Apostolidis A. Stem cells and lower urinary tract dysfunction: Has its potential finally reached clinical maturity? ICI‐RS2018. Neurourol Urodyn 2019; 38 Suppl 5:S134-S141. [DOI: 10.1002/nau.24069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 05/10/2019] [Indexed: 12/31/2022]
Affiliation(s)
| | - Iraklis Mitsogiannis
- 2nd Department of UrologySismanogleio General HospitalNational and Kapodistrian University of AthensAthens Greece
| | - Paul Abrams
- Bristol Urological InstituteUniversity of BristolBristol UK
| | - Apostolos Apostolidis
- 2nd Department of Urology, Papageorgiou General HospitalAristotle University of ThessalonikiThessaloniki Greece
| |
Collapse
|
50
|
Chuang HM, Chen YS, Harn HJ. The Versatile Role of Matrix Metalloproteinase for the Diverse Results of Fibrosis Treatment. Molecules 2019; 24:molecules24224188. [PMID: 31752262 PMCID: PMC6891433 DOI: 10.3390/molecules24224188] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 12/11/2022] Open
Abstract
Fibrosis is a type of chronic organ failure, resulting in the excessive secretion of extracellular matrix (ECM). ECM protects wound tissue from infection and additional injury, and is gradually degraded during wound healing. For some unknown reasons, myofibroblasts (the cells that secrete ECM) do not undergo apoptosis; this is associated with the continuous secretion of ECM and reduced ECM degradation even during de novo tissue formation. Thus, matrix metalloproteinases (MMPs) are considered to be a potential target of fibrosis treatment because they are the main groups of ECM-degrading enzymes. However, MMPs participate not only in ECM degradation but also in the development of various biological processes that show the potential to treat diseases such as stroke, cardiovascular diseases, and arthritis. Therefore, treatment involving the targeting of MMPs might impede typical functions. Here, we evaluated the links between these MMP functions and possible detrimental effects of fibrosis treatment, and also considered possible approaches for further applications.
Collapse
Affiliation(s)
- Hong-Meng Chuang
- Buddhist Tzu Chi Bioinnovation Center, Tzu Chi Foundation, Hualien 970, Taiwan; (H.-M.C.); (Y.-S.C.)
- Department of Medical Research, Hualien Tzu Chi Hospital, Hualien 970, Taiwan
| | - Yu-Shuan Chen
- Buddhist Tzu Chi Bioinnovation Center, Tzu Chi Foundation, Hualien 970, Taiwan; (H.-M.C.); (Y.-S.C.)
- Department of Medical Research, Hualien Tzu Chi Hospital, Hualien 970, Taiwan
| | - Horng-Jyh Harn
- Buddhist Tzu Chi Bioinnovation Center, Tzu Chi Foundation, Hualien 970, Taiwan; (H.-M.C.); (Y.-S.C.)
- Department of Pathology, Hualien Tzu Chi Hospital & Tzu Chi University, Hualien 970, Taiwan
- Correspondence: ; Tel.: +03-8561825 (ext. 15615)
| |
Collapse
|