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Aitken KJ, Schröder A, Haddad A, Sidler M, Penna F, Fernandez N, Ahmed T, Marino V, Bechbache M, Jiang JX, Tolg C, Bägli DJ. Epigenetic insights to pediatric uropathology: Celebrating the fundamental biology vision of Tony Khoury. J Pediatr Urol 2024; 20 Suppl 1:S43-S57. [PMID: 38944627 DOI: 10.1016/j.jpurol.2024.06.008] [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: 04/11/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 07/01/2024]
Abstract
INTRODUCTION Many pediatric urology conditions affect putatively normal tissues or appear too commonly to be based solely on specific DNA mutations. Understanding epigenetic mechanisms in pediatric urology, therefore, has many implications that can impact cell and tissue responses to settings, such as environmental and hormonal influences on urethral development, uropathogenic infections, obstructive stimuli, all of which originate externally or extracellularly. Indeed, the cell's response to external stimuli is often mediated epigenetically. In this commentary, we highlight work on the critical role that epigenetic machinery, such as DNA methyltransferases (DNMTs), Enhancer of Zeste Polycomb Repressive Complex 2 Subunit (EZH2), and others play in regulating gene expression and cellular functions in three urological contexts. DESIGN Animal and cellular constructs were used to model clinical pediatric uropathology. The hypertrophy, trabeculation, and fibrosis of the chronically obstructed bladder was explored using smooth muscle cell models employing disorganised vs. normal extracellular matrix (ECM), as well as a new animal model of chronic obstructive bladder disease (COBD) which retains its pathologic features even after bladder de-obstruction. Cell models from human and murine hypospadias or genital tubercles (GT) were used to illustrate developmental responses and epigenetic dependency of key developmental genes. Finally, using bladder urothelial and organoid culture systems, we examined activity of epigenetic machinery in response to non uropathogenic vs. uropathogenic E.coli (UPEC). DNMT and EZH2 expression and function were interrogated in these model systems. RESULTS Disordered ECM exerted a principal mitogenic and epigenetic role for on bladder smooth muscle both in vitro and in CODB in vivo. Key genes, e.g., BDNF and KCNB2 were under epigenetic regulation in actively evolving obstruction and COBD, though each condition showed distinct epigenetic responses. In models of hypospadias, estrogen strongly dysregulated WNT and Hox expression, which was normalized by epigenetic inhibition. Finally, DNA methylation machinery in the urothelium showed specific activation when challenged by uropathogenic E.coli. Similarly, UPEC induces hypermethylation and downregulation of the growth suppressor p16INK4A. Moreover, host cells exposed to UPEC produced secreted factors inducing epigenetic responses transmissible from one affected cell to another without ongoing bacterial presence. DISCUSSION Microenvironmental influences altered epigenetic activity in the three described urologic contexts. Considering that many obstructed bladders continue to display abnormal architecture and dysfunction despite relief of obstruction similar to after resection of posterior valves or BPH, the epigenetic mechanisms described highlight novel approaches for understanding the underlying smooth muscle myopathy of this crucial clinical problem. Similarly, there is evidence for an epigenetic basis of xenoestrogen on development of hypospadias, and UTI-induced pan-urothelial alteration of epigenetic marks and propensity for subsequent (recurrent) UTI. The impact of mechanical, hormonal, infectious triggers on genitourinary epigenetic machinery activity invite novel avenues for targeting epigenetic modifications associated with these non-cancer diseases in urology. This includes the use of deactivated CRISPR-based technologies for precise epigenome targeting and editing. Overall, we underscore the importance of understanding epigenetic regulation in pediatric urology for the development of innovative therapeutic and management strategies.
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Affiliation(s)
- K J Aitken
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; DIYbio Toronto, 1677 St. Clair West, Toronto, Ontario, Canada.
| | - Annette Schröder
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Urology and Pediatric Urology of the University Medical Center Mainz, Mainz, Rheinland-Pfalz, Germany
| | - Ahmed Haddad
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Martin Sidler
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Frank Penna
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nicolas Fernandez
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Tabina Ahmed
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Human Biology Programme, University of Toronto, Toronto, Ontario, Canada
| | - Vincent Marino
- DIYbio Toronto, 1677 St. Clair West, Toronto, Ontario, Canada
| | - Matthew Bechbache
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada
| | - Jia-Xin Jiang
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Human Biology Programme, University of Toronto, Toronto, Ontario, Canada; Department of Physiology, Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Cornelia Tolg
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada
| | - Darius J Bägli
- Developmental and Stem Cell Biology, Research Institute, Hospital for Sick Children, 686 Bay St., Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Physiology, Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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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.
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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.
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Akshay A, Besic M, Kuhn A, Burkhard FC, Bigger-Allen A, Adam RM, Monastyrskaya K, Hashemi Gheinani A. Machine Learning-Based Classification of Transcriptome Signatures of Non-Ulcerative Bladder Pain Syndrome. Int J Mol Sci 2024; 25:1568. [PMID: 38338847 PMCID: PMC10855300 DOI: 10.3390/ijms25031568] [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: 12/21/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/12/2024] Open
Abstract
Lower urinary tract dysfunction (LUTD) presents a global health challenge with symptoms impacting a substantial percentage of the population. The absence of reliable biomarkers complicates the accurate classification of LUTD subtypes with shared symptoms such as non-ulcerative Bladder Pain Syndrome (BPS) and overactive bladder caused by bladder outlet obstruction with Detrusor Overactivity (DO). This study introduces a machine learning (ML)-based approach for the identification of mRNA signatures specific to non-ulcerative BPS. Using next-generation sequencing (NGS) transcriptome data from bladder biopsies of patients with BPS, benign prostatic obstruction with DO, and controls, our statistical approach successfully identified 13 candidate genes capable of discerning BPS from control and DO patients. This set was validated using Quantitative Polymerase Chain Reaction (QPCR) in a larger patient cohort. To confirm our findings, we applied both supervised and unsupervised ML approaches to the QPCR dataset. A three-mRNA signature TPPP3, FAT1, and NCALD, emerged as a robust classifier for non-ulcerative BPS. The ML-based framework used to define BPS classifiers establishes a solid foundation for comprehending the gene expression changes in the bladder during BPS and serves as a valuable resource and methodology for advancing signature identification in other fields. The proposed ML pipeline demonstrates its efficacy in handling challenges associated with limited sample sizes, offering a promising avenue for applications in similar domains.
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Affiliation(s)
- Akshay Akshay
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland; (A.A.); (M.B.); (F.C.B.)
- 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; (A.A.); (M.B.); (F.C.B.)
| | - Annette Kuhn
- Department of Gynaecology, Inselspital University Hospital, 3010 Bern, Switzerland;
| | - Fiona C. Burkhard
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland; (A.A.); (M.B.); (F.C.B.)
- Department of Urology, Inselspital University Hospital, University of Bern, 3012 Bern, Switzerland
| | - Alex Bigger-Allen
- Urological Diseases Research Center, Boston Children’s Hospital, Boston, MA 02115, USA; (A.B.-A.); (R.M.A.)
- Department of Surgery, Harvard Medical School, Boston, MA 02114, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Rosalyn M. Adam
- Urological Diseases Research Center, Boston Children’s Hospital, Boston, MA 02115, USA; (A.B.-A.); (R.M.A.)
- Department of Surgery, Harvard Medical School, Boston, MA 02114, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Katia Monastyrskaya
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland; (A.A.); (M.B.); (F.C.B.)
- Department of Urology, Inselspital University Hospital, University of Bern, 3012 Bern, Switzerland
| | - Ali Hashemi Gheinani
- Functional Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, 3008 Bern, Switzerland; (A.A.); (M.B.); (F.C.B.)
- Department of Urology, Inselspital University Hospital, University of Bern, 3012 Bern, Switzerland
- Urological Diseases Research Center, Boston Children’s Hospital, Boston, MA 02115, USA; (A.B.-A.); (R.M.A.)
- Department of Surgery, Harvard Medical School, Boston, MA 02114, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
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Akshay A, Besic M, Kuhn A, Burkhard FC, Bigger-Allen A, Adam RM, Monastyrskaya K, Gheinani AH. Machine Learning-based Classification of transcriptome Signatures of non-ulcerative Bladder Pain Syndrome. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.08.574189. [PMID: 38260635 PMCID: PMC10802429 DOI: 10.1101/2024.01.08.574189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Lower urinary tract dysfunction (LUTD) presents a global health challenge with symptoms impacting a substantial percentage of the population. The absence of reliable biomarkers complicates the accurate classification of LUTD subtypes with shared symptoms such as non-ulcerative Bladder Pain Syndrome (BPS) and overactive bladder caused by bladder outlet obstruction with Detrusor Overactivity (DO). This study introduces a machine learning (ML)-based approach for the identification of mRNA signatures specific to non-ulcerative BPS. Using next-generation sequencing (NGS) transcriptome data from bladder biopsies of patients with BPS, benign prostatic obstruction with DO and controls, our statistical approach successfully identified 13 candidate genes capable of discerning BPS from control and DO patients. This set was subsequently validated using Quantitative Polymerase Chain Reaction (QPCR) in a larger patient cohort. To confirm our findings, we applied both supervised and unsupervised ML approaches to the QPCR dataset. Notably, a three-mRNA signature TPPP3, FAT1, and NCALD, emerged as a robust classifier, effectively distinguishing patients with non-ulcerative BPS from controls and patients with DO. This signature was universally selected by both supervised and unsupervised approaches. The ML-based framework used to define BPS classifiers not only establishes a solid foundation for comprehending the specific gene expression changes in the bladder of the patients with BPS but also serves as a valuable resource and methodology for advancing signature identification in other fields. The proposed ML pipeline demonstrates its efficacy in handling challenges associated with limited sample sizes, offering a promising avenue for applications in similar domains.
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Affiliation(s)
- Akshay Akshay
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Switzerland
| | - Mustafa Besic
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Switzerland
| | - Annette Kuhn
- Department of Gynaecology, Inselspital University Hospital, 3010 Bern, Switzerland
| | - Fiona C. Burkhard
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Switzerland
- Department of Urology, Inselspital University Hospital, 3010 Bern, Switzerland
| | - Alex Bigger-Allen
- Urological Diseases Research Center, Boston Children’s Hospital, MA, USA
- Harvard Medical School, Boston, Department of Surgery MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Rosalyn M. Adam
- Urological Diseases Research Center, Boston Children’s Hospital, MA, USA
- Harvard Medical School, Boston, Department of Surgery MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Katia Monastyrskaya
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Switzerland
- Department of Urology, Inselspital University Hospital, 3010 Bern, Switzerland
| | - Ali Hashemi Gheinani
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Switzerland
- Department of Urology, Inselspital University Hospital, 3010 Bern, Switzerland
- Urological Diseases Research Center, Boston Children’s Hospital, MA, USA
- Harvard Medical School, Boston, Department of Surgery MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
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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.
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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
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Lee HY, Wang CS, Juan YS. Detrusor Underactivity in Men with Bladder Outlet Obstruction. Biomedicines 2022; 10:biomedicines10112954. [PMID: 36428522 PMCID: PMC9687129 DOI: 10.3390/biomedicines10112954] [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: 09/23/2022] [Revised: 11/08/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Detrusor underactivity (DU) and bladder outlet obstruction (BOO) are both common troublesome causes of lower urinary tract symptoms (LUTS) and often impact on quality of life simultaneously in men. This article aims to focus on DU with BOO in male patients. METHODS Original articles concerning DU with BOO were identified through literature research from PubMed and EMBASE database. We selected 38 articles in our review, including those concerning pathophysiology, evaluation, treatment and predictors for a successful BOO surgery for DU. RESULTS DU from BOO can result from several pathophysiological mechanisms. Although urodynamic study (UDS) is considered as a precise method to diagnose DU and BOO, there are some previous studies which proposed a non-invasive method to identify DU related to BOO. The treatment goal of DU is restoring bladder contractility using medication or surgery. Releasing outlet obstruction and resistance is the main strategy to restore bladder contractility when medication to directly increase bladder contractility has had limited efficacy. CONCLUSIONS DU from BOO is poorly understood and is largely under-researched. The etiology and pathophysiology still need to be evaluated. Effective and safe medication to restore bladder contractility is also lacking. It remains valuable to perform further research to reveal the unknown aspects of DU.
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Affiliation(s)
- Hsiang-Ying Lee
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 800-852, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 800-852, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 800-852, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 800-852, Taiwan
| | - Chien-Sheng Wang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 800-852, Taiwan
| | - Yung-Shun Juan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 800-852, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 800-852, Taiwan
- Correspondence: or ; Tel.: +886-7312-1101; Fax: +886-7213-8405
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Bilé Silva A, Dinis PJ, Abranches Monteiro L. Systematic review of urinary biomarkers of female bladder outlet obstruction (fBOO). Arch Ital Urol Androl 2022; 94:355-359. [DOI: 10.4081/aiua.2022.3.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/05/2022] [Indexed: 11/22/2022] Open
Abstract
Objective: Diagnosis of bladder outlet obstruction (BOO) in females is often challenging, not only because of the overlap in storage and voiding symptoms in women with various etiologies of lower urinary tract (LUT) dysfunction but also due to the lack of standardized urodynamic criteria to define the condition. There is an unmet need of biologic markers to evaluate BOO in females as an adjunct to other clinical criteria. We sought to elucidate the role of urinary biomarkers in female BOO. Material and methods: We performed a systematic review of studies involving urinary biomarkers in female BOO. The search was performed in PubMed. A total of 58 papers were retrieved and 2 were included for final analysis.Results: Currently, there are no validated biologic markers for female BOO available. Having a biomarker that can be obtained through a urine sample will be an invaluable tool to evaluate and counsel patients with LUT symptoms and possible BOO. The use of NGF as an indicator of BOO in female patients seems to be promising: NGF levels are elevated in women with BOO when compared with normal controls. Conclusions: We found that NGF levels may be applied as a useful biomarker in the diagnosis and evaluation of female patients with BOO symptoms. It will not completely replace other clinical diagnostic tools such as formal urodynamic testing but play a role as a supplement to it. Nevertheless, further studies should be conducted to establish NGF levels as a female BOO biomarker and a routine testing modality.
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Tu M, Wang R, Zhu P, Wang Q, Sun B, Lu K, Zhang J, Xie W, Guo H, Li S, Wu Y, Wang X. Human Urine-Derived Stem Cells Improve Partial Bladder Outlet Obstruction in Rats: Preliminary Data and microRNA-mRNA Expression Profile. Stem Cell Rev Rep 2022; 18:2403-2413. [PMID: 35230645 PMCID: PMC9489579 DOI: 10.1007/s12015-022-10340-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2022] [Indexed: 11/29/2022]
Abstract
Partial bladder outlet obstruction (pBOO) often results in bladder tissue inflammation and remodeling. As human urine-derived stem cells (USCs) have demonstrated therapeutic benefits, we used a rat model to investigate the effect of USCs on bladder function and explore the miRNA and gene expression profiles in bladder tissue using RNA sequencing. Eighteen rats were assigned to a sham surgery group, pBOO group, and pBOO+USC group (six biweekly treatments). Routine urodynamic monitoring, analysis of detrusor muscle strips, and pathophysiology assessments were conducted. Finally, altered miRNA and mRNA expression profiles of bladder tissue were examined using RNA sequencing and bioinformatics analysis. After USC treatment, elevated bladder compliance and maximal voiding pressure, declined end filling pressure and voided volume, and improved detrusor muscle contractility and carbachol sensitivity were found. Histology and TUNEL assay revealed reduced collagen deposition and muscle cell apoptosis in bladder tissue. The differential expression of eight miRNAs was reversed by USC treatment. Two large nodes (miR-142 and miR-9a) were identified in the miRNA-gene interaction network in the USC-treated group. The Kyoto Encyclopedia of Genes and Genomes analysis revealed enrichment of multiple significant pathways, including those involved in necroptosis and cytokine-cytokine receptor interactions. This is the first study to demonstrate the protective effect of USCs on bladder function and remodeling in pBOO rats. The miRNA and mRNA expression levels differed in the bladder of pBOO rats with and without USC treatment. Although the mechanism underlying these effects has not been fully elucidated, necroptosis and cytokine-cytokine receptor interaction-related pathways may be involved.
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Affiliation(s)
- Menjiang Tu
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Rui Wang
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Pei Zhu
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Qingqing Wang
- Department of Urology, Second Affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Bishao Sun
- Department of Urology, Second Affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Keshi Lu
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Jiawei Zhang
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Weijie Xie
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Huan Guo
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Shulin Li
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China
| | - Yuqi Wu
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China.
| | - Xiangwei Wang
- Department of Urology, Southern University of Science and Technology Hospital, Liuxian Street, Nanshan District, Shenzhen, NO.6019, China.
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DU Is Induced by Low Levels of Urinary ATP in a Rat Model of Partial Bladder Outlet Obstruction: The Incidence of Both Events Decreases after Deobstruction. Adv Urol 2022; 2022:6292457. [PMID: 35265122 PMCID: PMC8901296 DOI: 10.1155/2022/6292457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 01/11/2022] [Indexed: 11/18/2022] Open
Abstract
Objectives. To investigate, in initial phases of bladder outlet obstruction (BOO), the urinary ATP levels, the incidence of detrusor underactivity (DU), and if they change after deobstruction. Methods. Adult female Wistar rats submitted to partial BOO (pBOO) and sham-obstruction were used. Cystometry was performed 3 or 15 days after pBOO and fluid was collected from the urethra for ATP determination. Bladders were harvested for morphological evaluation of the urothelium. DU was defined as the average of voiding contractions (VC) of sham-operated animals, with 3 SD at 15 days after the sham surgery. In another group of animals in which pBOO was relieved at 15 days and bladders were let to recover for 15 days, the incidence of DU and ATP levels were also accessed. The Kruskal–Wallis test was followed by Dunn’s multiple comparisons test, and Spearman’s correlation test was used. Results. DU was present in 13% and 67% of the bladders at 3 and 15 days after pBOO, respectively, and in 20% of the bladders at 15 days after deobstruction. ATP levels were significantly lower in DU/pBOO versus sham and non-DU/pBOO rats. A strong positive correlation between ATP levels and VC/min was obtained (r = 0.63). DU bladders had extensive areas in which umbrella cells appeared stretched, the width exceeding that presented by sham animals. Conclusions. Low urothelial ATP parallels with a high incidence of DU early after pBOO.
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10
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Gheinani AH, Akshay A, Besic M, Kuhn A, Keller I, Bruggmann R, Rehrauer H, Adam RM, Burkhard FC, Monastyrskaya K. Integrated mRNA-miRNA transcriptome analysis of bladder biopsies from patients with bladder pain syndrome identifies signaling alterations contributing to the disease pathogenesis. BMC Urol 2021; 21:172. [PMID: 34876093 PMCID: PMC8653529 DOI: 10.1186/s12894-021-00934-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/29/2021] [Indexed: 11/24/2022] Open
Abstract
Background Interstitial cystitis, or bladder pain syndrome (IC/BPS), is a chronic bladder disorder characterized by lower abdominal pain associated with the urinary bladder and accompanied by urinary frequency and urgency in the absence of identifiable causes. IC/PBS can be separated into the classic Hunner’s ulcerative type and the more prevalent non-ulcerative disease. Our aim was to unravel the biological processes and dysregulated cell signaling pathways leading to the bladder remodeling in non-ulcerative bladder pain syndrome (BPS) by studying the gene expression changes in the patients’ biopsies.
Methods We performed paired microRNA (miRNA) and mRNA expression profiling in the bladder biopsies of BPS patients with non-Hunner interstitial cystitis phenotype, using comprehensive Next-generation sequencing (NGS) and studied the activated pathways and altered biological processes based on the global gene expression changes. Paired mRNA-miRNA transcriptome analysis delineated the regulatory role of the dysregulated miRNAs by identifying their targets in the disease-induced pathways. Results EIF2 Signaling and Regulation of eIF4 and p70S6K Signaling, activated in response to cellular stress, were among the most significantly regulated processes during BPS. Leukotriene Biosynthesis nociceptive pathway, important in inflammatory diseases and neuropathic pain, was also significantly activated. The biological processes identified using Gene Ontology over-representation analysis were clustered into six main functional groups: cell cycle regulation, chemotaxis of immune cells, muscle development, muscle contraction, remodeling of extracellular matrix and peripheral nervous system organization and development. Compared to the Hunner’s ulcerative type IC, activation of the immune pathways was modest in non-ulcerative BPS, limited to neutrophil chemotaxis and IFN-γ-mediated signaling. We identified 62 miRNAs, regulated and abundant in BPS and show that they target the mRNAs implicated in eIF2 signalling pathway. Conclusions The bladders of non-ulcerative BPS patients recruited in this study had alterations consistent with a strong cell proliferative response and an up-regulation of smooth muscle contractility, while the contribution of inflammatory processes was modest. Pathway analysis of the integrated mRNA-miRNA NGS dataset pinpointed important regulatory miRNAs whose dysregulation might contribute to the pathogenesis. Observed molecular changes in the peripheral nervous system organization and development indicate the potential role of local bladder innervation in the pain perceived in this type of BPS. Supplementary Information The online version contains supplementary material available at 10.1186/s12894-021-00934-0.
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Affiliation(s)
- Ali Hashemi Gheinani
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland.,Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA.,Department of Surgery, Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Akshay Akshay
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
| | - Mustafa Besic
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
| | - Annette Kuhn
- Department of Gynaecology, Inselspital University Hospital, 3010, Bern, Switzerland
| | - Irene Keller
- Interfaculty Bioinformatics Unit, University of Bern, Bern, Switzerland
| | - Rémy Bruggmann
- Interfaculty Bioinformatics Unit, University of Bern, Bern, Switzerland
| | - Hubert Rehrauer
- Functional Genomics Center Zurich, ETH Zurich/University of Zurich, Zurich, Switzerland
| | - Rosalyn M Adam
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, USA.,Department of Surgery, Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Fiona C Burkhard
- Department of Urology, Inselspital University Hospital, 3010, Bern, Switzerland
| | - Katia Monastyrskaya
- Functional Urology Research Group, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland.
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11
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Petrović N, Stanojković TP, Nikitović M. MicroRNAs in prostate cancer following radiotherapy: Towards predicting response to radiation treatment. Curr Med Chem 2021; 29:1543-1560. [PMID: 34348602 DOI: 10.2174/0929867328666210804085135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 06/10/2021] [Accepted: 06/19/2021] [Indexed: 12/24/2022]
Abstract
Prostate cancer (PCa) is the second most frequently diagnosed male cancer worldwide. Early diagnosis of PCa, response to therapy and prognosis still represent a challenge. Nearly 60% of PCa patients undergo radiation therapy (RT) which might cause side effects. In spite of numerous researches in this field, predictive biomarkers for radiation toxicity are still not elucidated. MicroRNAs as posttranscriptional regulators of gene expression are shown to be changed during and after irradiation. Manipulation with miRNA levels might be used to modulate response to RT-to reverse radioresistance-to induce radiosensitivity, or if needed, to reduce sensitivity to treatment to avoid side effects. In this review we have listed and described miRNAs involved in response to RT in PCa, and highlighted potential candidates for future biological tests predicting radiation response to RT, with the special focus on side effects of RT. Individual radiation response is a result of the interactions between physical characteristics of radiation treatment and biological background of each patient, and miRNA expression changes among others. According to described literature we concluded that let-7, miR-21, miR-34a, miR-146a, miR-155, and members of miR-17/92 cluster might be promising candidates for biological tests predicting radiosensitivity of PCa patients undergoing radiation treatment, and as future agents for modulation of radiation response. Predictive miRNA panels, especially for acute and late side effects of RT can serve as a starting point for decisions for individualized RT planning. We believe that this review might be one step closer to understanding molecular mechanisms underlying individual radiation response of patients with PCa.
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Affiliation(s)
- Nina Petrović
- Laboratory for Radiobiology and Molecular Genetics, Department of Health and Environment, "VINČA" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11001 Belgrade. Serbia
| | - Tatjana P Stanojković
- Department for Experimental Oncology, Institute for Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade. Serbia
| | - Marina Nikitović
- Department of Radiation Oncology, Institute for Oncology and Radiology of Serbia, Belgrade, Serbia, Pasterova 14, 11000 Belgrade. Serbia
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12
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A Systematic Review of Therapeutic Approaches Used in Experimental Models of Interstitial Cystitis/Bladder Pain Syndrome. Biomedicines 2021; 9:biomedicines9080865. [PMID: 34440069 PMCID: PMC8389661 DOI: 10.3390/biomedicines9080865] [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: 07/13/2021] [Revised: 07/18/2021] [Accepted: 07/20/2021] [Indexed: 01/01/2023] Open
Abstract
Interstitial cystitis/bladder pain syndrome (IC/BPS) is a multifactorial, chronic bladder disorder with limited therapeutic options currently available. The present review provides an extensive overview of therapeutic approaches used in in vitro, ex vivo, and in vivo experimental models of IC/BPS. Publications were identified by electronic search of three online databases. Data were extracted for study design, type of treatment, main findings, and outcome, as well as for methodological quality and the reporting of measures to avoid bias. A total of 100 full-text articles were included. The majority of identified articles evaluated therapeutic agents currently recommended to treat IC/BPS by the American Urological Association guidelines (21%) and therapeutic agents currently approved to treat other diseases (11%). More recently published articles assessed therapeutic approaches using stem cells (11%) and plant-derived agents (10%), while novel potential drug targets identified were proteinase-activated (6%) and purinergic (4%) receptors, transient receptor potential channels (3%), microRNAs (2%), and activation of the cannabinoid system (7%). Our results show that the reported methodological quality of animal studies could be substantially improved, and measures to avoid bias should be more consistently reported in order to increase the value of preclinical research in IC/BPS for potential translation to a clinical setting.
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13
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Wu H, Jiang W, Ji G, Xu R, Zhou G, Yu H. Exploring microRNA target genes and identifying hub genes in bladder cancer based on bioinformatic analysis. BMC Urol 2021; 21:90. [PMID: 34112125 PMCID: PMC8194198 DOI: 10.1186/s12894-021-00857-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 06/04/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Bladder cancer (BC) is the second most frequent malignancy of the urinary system. The aim of this study was to identify key microRNAs (miRNAs) and hub genes associated with BC as well as analyse their targeted relationships. METHODS According to the microRNA dataset GSE112264 and gene microarray dataset GSE52519, differentially expressed microRNAs (DEMs) and differentially expressed genes (DEGs) were obtained using the R limma software package. The FunRich software database was used to predict the miRNA-targeted genes. The overlapping common genes (OCGs) between miRNA-targeted genes and DEGs were screened to construct the PPI network. Then, gene ontology (GO) analysis was performed through the "cluster Profiler" and "org.Hs.eg.db" R packages. The differential expression analysis and hierarchical clustering of these hub genes were analysed through the GEPIA and UCSC Cancer Genomics Browser databases, respectively. KEGG pathway enrichment analyses of hub genes were performed through gene set enrichment analysis (GSEA). RESULTS A total of 12 DEMs and 10 hub genes were identified. Differential expression analysis of the hub genes using the GEPIA database was consistent with the results for the UCSC Cancer Genomics Browser database. The results indicated that these hub genes were oncogenes, but VCL, TPM2, and TPM1 were tumour suppressor genes. The GSEA also showed that hub genes were most enriched in those pathways that were closely associated with tumour proliferation and apoptosis. CONCLUSIONS In this study, we built a miRNA-mRNA regulatory targeted network, which explores an understanding of the pathogenesis of cancer development and provides key evidence for novel targeted treatments for BC.
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Affiliation(s)
- Hongjian Wu
- Department of Urology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, 317000, Zhejiang, People's Republic of China
| | - Wubing Jiang
- Department of Urology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, 317000, Zhejiang, People's Republic of China
| | - Guanghua Ji
- Department of Urology, Taizhou Municipal Hospital, Taizhou, 317000, Zhejiang, People's Republic of China
| | - Rong Xu
- Department of Urology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, 317000, Zhejiang, People's Republic of China
| | - Gaobo Zhou
- Department of Urology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, 317000, Zhejiang, People's Republic of China
| | - Hongyuan Yu
- Department of Urology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, 317000, Zhejiang, People's Republic of China.
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14
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von Siebenthal M, Besic M, Gheinani AH, Akshay A, Lizun-Platoni S, Kunz N, Burkhard FC, Monastyrskaya K. Urinary miRNA profiles discriminate between obstruction-induced bladder dysfunction and healthy controls. Sci Rep 2021; 11:10204. [PMID: 33986358 PMCID: PMC8119692 DOI: 10.1038/s41598-021-89535-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 04/28/2021] [Indexed: 02/07/2023] Open
Abstract
Urgency, frequency and incomplete emptying are the troublesome symptoms often shared between benign prostatic obstruction-induced (BLUTD) and neurogenic (NLUTD) lower urinary tract dysfunction. Previously, using bladder biopsies, we suggested a panel of miRNA biomarkers for different functional phenotypes of the bladder. Urine is a good source of circulating miRNAs, but sex- and age-matched controls are important for urinary metabolite comparison. In two groups of healthy subjects (average age 32 and 57 years old, respectively) the total protein and RNA content was very similar between age groups, but the number of secreted extracellular vesicles (uEVs) and expression of several miRNAs were higher in the young healthy male volunteers. Timing of urine collection was not important for these parameters. We also evaluated the suitability of urinary miRNAs for non-invasive diagnosis of bladder outlet obstruction (BOO). A three urinary miRNA signature (miR-10a-5p, miR-301b-3p and miR-363-3p) could discriminate between controls and patients with LUTD (BLUTD and NLUTD). This panel of representative miRNAs can be further explored to develop a non-invasive diagnostic test for BOO. The age-related discrepancy in the urinary miRNA content observed in this study points to the importance of selecting appropriate, age-matched controls.
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Affiliation(s)
- Michelle von Siebenthal
- Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
| | - Mustafa Besic
- Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
| | - Ali Hashemi Gheinani
- Urological Diseases Research Center, Boston Children's Hospital, Harvard Medical School, Boston, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Akshay Akshay
- Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland
| | | | - Nadine Kunz
- Department of Urology, Inselspital University Hospital, 3010, Bern, Switzerland
| | - Fiona C Burkhard
- Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland.,Department of Urology, Inselspital University Hospital, 3010, Bern, Switzerland
| | - Katia Monastyrskaya
- Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland. .,Department of Urology, Inselspital University Hospital, 3010, Bern, Switzerland.
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15
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Haemmig S, Gheinani AH, Zaromytidou M, Siasos G, Coskun AU, Cormier MA, Gross DA, Wara AKMK, Antoniadis A, Sun X, Sukhova GK, Welt F, Andreou I, Whatling C, Gan LM, Wikström J, Edelman ER, Libby P, Stone PH, Feinberg MW. Novel Lesional Transcriptional Signature Separates Atherosclerosis With and Without Diabetes in Yorkshire Swine and Humans. Arterioscler Thromb Vasc Biol 2021; 41:1487-1503. [PMID: 33567868 PMCID: PMC7990701 DOI: 10.1161/atvbaha.121.315896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Stefan Haemmig
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Ali Hashemi Gheinani
- Department of Surgery, Urological Diseases Research Center, Boston Children Hospital, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Marina Zaromytidou
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Gerasimos Siasos
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Ahmet Umit Coskun
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Michelle A. Cormier
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - David A. Gross
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - AKM Khyrul Wara
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Antonios Antoniadis
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Xinghui Sun
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Galina K. Sukhova
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Fred Welt
- University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Ioannis Andreou
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Carl Whatling
- Bioscience Cardiovascular/Early Clinical Development/Translational Science and Experimental Medicine, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Li-Ming Gan
- Bioscience Cardiovascular/Early Clinical Development/Translational Science and Experimental Medicine, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Johannes Wikström
- Bioscience Cardiovascular/Early Clinical Development/Translational Science and Experimental Medicine, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Elazer R. Edelman
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Peter Libby
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Peter H. Stone
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Mark W. Feinberg
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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16
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Gundogdu G, Tosun M, Morhardt D, Gheinani AH, Algarrahi K, Yang X, Costa K, Alegria CG, Adam RM, Yang W, Mauney JR. Molecular mechanisms of esophageal epithelial regeneration following repair of surgical defects with acellular silk fibroin grafts. Sci Rep 2021; 11:7086. [PMID: 33782465 PMCID: PMC8007829 DOI: 10.1038/s41598-021-86511-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/16/2021] [Indexed: 12/11/2022] Open
Abstract
Constructive remodeling of focal esophageal defects with biodegradable acellular grafts relies on the ability of host progenitor cell populations to repopulate implant regions and facilitate growth of de novo functional tissue. Intrinsic molecular mechanisms governing esophageal repair processes following biomaterial-based, surgical reconstruction is largely unknown. In the present study, we utilized mass spectrometry-based quantitative proteomics and in silico pathway evaluations to identify signaling cascades which were significantly activated during neoepithelial formation in a Sprague Dawley rat model of onlay esophagoplasty with acellular silk fibroin scaffolds. Pharmacologic inhibitor and rescue experiments revealed that epithelialization of neotissues is significantly dependent in part on pro-survival stimuli capable of suppressing caspase activity in epithelial progenitors via activation of hepatocyte growth factor receptor (c-MET), tropomyosin receptor kinase A (TrkA), phosphoinositide 3-kinase (PI3K), and protein kinase B (Akt) signaling mechanisms. These data highlight the molecular machinery involved in esophageal epithelial regeneration following surgical repair with acellular implants.
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Affiliation(s)
- Gokhan Gundogdu
- Departments of Urology and Biomedical Engineering, University of California, Irvine, Orange, CA, 92868, USA
| | - Mehmet Tosun
- Departments of Urology and Biomedical Engineering, University of California, Irvine, Orange, CA, 92868, USA
| | - Duncan Morhardt
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA
| | - Ali Hashemi Gheinani
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA
- Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA, 02142, USA
| | - Khalid Algarrahi
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA
| | - Xuehui Yang
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA
| | - Kyle Costa
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA
| | - Cinthia Galvez Alegria
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA
| | - Rosalyn M Adam
- Urological Diseases Research Center, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA
- Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA, 02142, USA
| | - Wei Yang
- Division of Cancer Biology and Therapeutics, Departments of Surgery and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Joshua R Mauney
- Departments of Urology and Biomedical Engineering, University of California, Irvine, Orange, CA, 92868, USA.
- Departments of Urology and Biomedical Engineering, University of California, Irvine, Building 55, 101 The City Drive South., Rm. 300, Orange, CA, 92868, USA.
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17
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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.
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18
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Hashemi Gheinani A, Bigger-Allen A, Wacker A, Adam RM. Systems analysis of benign bladder disorders: insights from omics analysis. Am J Physiol Renal Physiol 2020; 318:F901-F910. [PMID: 32116016 DOI: 10.1152/ajprenal.00496.2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The signaling pathways and effectors that drive the response of the bladder to nonmalignant insults or injury are incompletely defined. Interrogation of biological systems has been revolutionized by the ability to generate high-content data sets that capture information on a variety of biomolecules in cells and tissues, from DNA to RNA to proteins. In oncology, such an approach has led to the identification of cancer subtypes, improved prognostic capability, and has provided a basis for precision treatment of patients. In contrast, systematic molecular characterization of benign bladder disorders has lagged behind, such that our ability to uncover novel therapeutic interventions or increase our mechanistic understanding of such conditions is limited. Here, we discuss existing literature on the application of omics approaches, including transcriptomics and proteomics, to urinary tract conditions characterized by pathological tissue remodeling. We discuss molecular pathways implicated in remodeling, challenges in the field, and aspirations for omics-based research in the future.
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Affiliation(s)
- Ali Hashemi Gheinani
- Department of Urology, Boston Children's Hospital, Boston, Massachusetts.,Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Alexander Bigger-Allen
- Department of Urology, Boston Children's Hospital, Boston, Massachusetts.,Biological and Biomedical Sciences PhD Program, Harvard Medical School, Boston, Massachusetts
| | - Amanda Wacker
- Department of Urology, Boston Children's Hospital, Boston, Massachusetts.,Florida State University, Tallahassee, Florida
| | - Rosalyn M Adam
- Department of Urology, Boston Children's Hospital, Boston, Massachusetts.,Department of Surgery, Harvard Medical School, Boston, Massachusetts
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19
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Antunes-Lopes T, Cruz F. Urinary Biomarkers in Overactive Bladder: Revisiting the Evidence in 2019. Eur Urol Focus 2019; 5:329-336. [PMID: 31231010 DOI: 10.1016/j.euf.2019.06.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/24/2019] [Accepted: 06/10/2019] [Indexed: 11/19/2022]
Abstract
CONTEXT In overactive bladder (OAB), after an initial outbreak of research, it is more consensual that biomarkers may be better used to phenotype patients. Herein, we revisit this topic, including some of the most promising biomarkers. OBJECTIVE To provide a comprehensive analysis of the actual role of biomarkers in OAB. EVIDENCE ACQUISITION A PubMed-based literature search was conducted, including the most relevant articles published in the last 15 yr, on nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), adenosine triphosphate (ATP), genomics, and microbiota as OAB biomarkers. Articles with no full text available or not written in English were excluded. Additional reviews were included. EVIDENCE SYNTHESIS Urinary NGF, BDNF, and ATP are increased in many OAB patients. These biomarkers can help identify OAB phenotypes and select the ideal candidates for new therapies directed to neurotrophic and purinergic pathways. Circulating urinary miRNA may be useful for establishing the ideal moment for bladder outlet obstruction relief and will eventually lead to the development of therapeutic agents that inhibit or reverse fibrotic pathways in the bladder. Urinary microbiota seems to be related to OAB symptoms, in particular urgency urinary incontinence, and may have strong implications in the prevention, diagnosis, and treatment of OAB. CONCLUSIONS In the future, physicians may consider the use of biomarkers to identify distinct OAB phenotypes, with distinct causal mechanisms, selecting patients for specific target therapies with expected better outcomes. PATIENT SUMMARY Overactive bladder biomarkers can be useful for phenotype patients and for selecting more effective target therapies.
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Affiliation(s)
- Tiago Antunes-Lopes
- Department of Urology, Hospital de S. João, Porto, Portugal; Faculty of Medicine, University of Porto, Porto, Portugal; I3S-Instituto de Investigação e Inovação em Saúde, Translational Neuro-Urology Group, University of Porto, Porto, Portugal.
| | - Francisco Cruz
- Department of Urology, Hospital de S. João, Porto, Portugal; Faculty of Medicine, University of Porto, Porto, Portugal; I3S-Instituto de Investigação e Inovação em Saúde, Translational Neuro-Urology Group, University of Porto, Porto, Portugal
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20
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Greco F, Inferrera A, La Rocca R, Navarra M, Casciaro M, Grosso G, Gangemi S, Ficarra V, Mirone V. The Potential Role of MicroRNAs as Biomarkers in Benign Prostatic Hyperplasia: A Systematic Review and Meta-analysis. Eur Urol Focus 2019; 5:497-507. [DOI: 10.1016/j.euf.2018.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/28/2017] [Accepted: 01/09/2018] [Indexed: 12/21/2022]
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21
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Thankam FG, Boosani CS, Dilisio MF, Gross RM, Agrawal DK. Genes interconnecting AMPK and TREM-1 and associated microRNAs in rotator cuff tendon injury. Mol Cell Biochem 2019; 454:97-109. [PMID: 30306456 PMCID: PMC6438203 DOI: 10.1007/s11010-018-3456-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 10/05/2018] [Indexed: 12/14/2022]
Abstract
Fatty infiltration and inflammation delay the healing responses and raise major concerns in the therapeutic management of rotator cuff tendon injuries (RCTI). Our evaluations showed the upregulation of 'metabolic check point' AMPK and inflammatory molecule, TREM-1 from shoulder biceps tendons collected from RCTI subjects. However, the epigenetic regulation of these biomolecules by miRNAs is largely unknown and it is likely that a deeper understanding of the mechanism of action can have therapeutic potential for RCTI. Based on this background, we have evaluated the miRNAs from RCTI patients with fatty infiltration and inflammation (FI group) and compared with RCTI patients without fatty infiltration and inflammation (No-FI group). NetworkAnalyst was employed to evaluate the genes interconnecting AMPK and TREM-1 pathway, using PRKAA1 (AMPK), TREM-1, HIF1α, HMGB1, and AGER as input genes. The most relevant miRNAs were screened by considering the fold change below - 7.5 and the number of target genes 10 and more which showed 13 miRNAs and 216 target genes. The exact role of these miRNAs in the fatty infiltration and inflammation associated with RCTI is still unknown and the understanding of biological activity of these miRNAs can pave ways to develop miRNA-based therapeutics in the management of RCTI.
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Affiliation(s)
- Finosh G Thankam
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Chandra S Boosani
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Matthew F Dilisio
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - R Michael Gross
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Devendra K Agrawal
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA.
- Department of Clinical & Translational Science, The Peekie Nash Carpenter Endowed Chair in Medicine, CRISS II Room 510, 2500 California Plaza, Omaha, NE, 68178, USA.
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22
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Vale L, Jesus F, Marcelissen T, Rieken M, Geavlete B, Rahnama'i MS, Martens F, Cruz F, Antunes‐Lopes T. Pathophysiological mechanisms in detrusor underactivity: Novel experimental findings. Low Urin Tract Symptoms 2019; 11:92-98. [DOI: 10.1111/luts.12257] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/29/2018] [Accepted: 01/07/2019] [Indexed: 01/20/2023]
Affiliation(s)
- Luís Vale
- Faculty of Medicine, University of PortoDepartment of Urology, Hospital São João Porto Portugal
| | - Filipa Jesus
- Faculty of Medicine, University of PortoDepartment of Urology, Hospital São João Porto Portugal
| | - Tom Marcelissen
- Department of UrologyMaastricht University Medical Centre Maastricht The Netherlands
| | - Malte Rieken
- Department of UrologyMedical University of Vienna Vienna Austria
| | - Bogdan Geavlete
- Department of UrologySaint John Emergency Clinical Hospital Bucharest Romania
| | - Mohammad Sajjad Rahnama'i
- Department of UrologyMaastricht University Maastricht The Netherlands
- Department of UrologyUniklinik Aachen RWTH Aachen Germany
| | - Frank Martens
- Department of Urology, Rabdoud University Medical Centre Nijmegen The Netherlands
| | - Francisco Cruz
- Faculty of Medicine, University of PortoDepartment of Urology, Hospital São João Porto Portugal
| | - Tiago Antunes‐Lopes
- Faculty of Medicine, University of PortoDepartment of Urology, Hospital São João Porto Portugal
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23
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Gheinani AH, Köck I, Vasquez E, Baumgartner U, Bigger-Allen A, Sack BS, Burkhard FC, Adam RM, Monastyrskaya K. Concordant miRNA and mRNA expression profiles in humans and mice with bladder outlet obstruction. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2018; 6:219-233. [PMID: 30697578 PMCID: PMC6334198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/14/2018] [Indexed: 06/09/2023]
Abstract
Bladder outlet obstruction (BOO) leads to lower urinary tract symptoms (LUTS) and urodynamic changes of the bladder function. Previously we identified microRNA (miRNA) and mRNA expression profiles associated with different states of BOO-induced LUTD in human patients. Bladder wall remodeling resulting from obstruction is widely studied in animal models of experimentally-induced partial BOO (pBOO). Here we determined the expression profiles of miRNAs and selected mRNAs in pBOO mice and compared the observed changes to human patients. Similar to results from human patients, we observed a down-regulation of smooth muscle-associated miRNAs mmu-miR-1, mmu-miR-143, mmu-miR-145, mmu-miR-486 and mmu-miR-133a in pBOO mouse bladders. Pro-fibrotic miRNAs mmu-miR-142-3p and mmu-miR-21 were up-regulated, and anti-fibrotic miRNA mmu-miR-29c was down-regulated. Pathway analysis in human BOO patients identified TNF-alpha as the top upstream regulator. Although there was evidence of hypertrophic changes in pBOO mice, contrary to human data, we observed no regulation of TNF-responsive genes in the mouse model. Experimentally-induced pBOO in mice led to significant gene expression changes, including alteration of pro-fibrotic mRNAs and miRNAs resembling human BOO patients. Gene expression changes were also validated in a mouse model of bladder inflammation. Lack of evidence of TNF-alpha-induced miRNA and mRNA regulation might indicate a different pathophysiological mechanism of organ remodeling in pBOO model compared to the human disease.
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Affiliation(s)
- Ali Hashemi Gheinani
- Department of Urology, Boston Children’s HospitalBoston, MA, USA
- Department of Surgery, Harvard Medical SchoolBoston, MA, USA
| | - Ivonne Köck
- Urology Research Laboratory, Department of Clinical Research, University of BernSwitzerland
| | - Evalynn Vasquez
- Department of Urology, Boston Children’s HospitalBoston, MA, USA
- Department of Surgery, Harvard Medical SchoolBoston, MA, USA
- Division of Urology, Children’s Hospital Los Angeles and Keck School of Medicine of the University of Southern CaliforniaLos Angeles, CA 90027, USA
| | | | - Alexander Bigger-Allen
- Department of Urology, Boston Children’s HospitalBoston, MA, USA
- Biological and Biomedical Sciences PhD Program, Harvard Medical SchoolBoston, MA, USA
| | - Bryan S Sack
- Department of Urology, Boston Children’s HospitalBoston, MA, USA
- Department of Surgery, Harvard Medical SchoolBoston, MA, USA
- Department of Urology, Mott Children’s Hospital and University of MichiganAnn Arbor, MI 48109, USA
| | | | - Rosalyn M Adam
- Department of Urology, Boston Children’s HospitalBoston, MA, USA
- Department of Surgery, Harvard Medical SchoolBoston, MA, USA
| | - Katia Monastyrskaya
- Urology Research Laboratory, Department of Clinical Research, University of BernSwitzerland
- Department of Urology, University HospitalBern, Switzerland
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24
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Tumor Necrosis Factor-α Initiates miRNA-mRNA Signaling Cascades in Obstruction-Induced Bladder Dysfunction. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:1847-1864. [DOI: 10.1016/j.ajpath.2018.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/03/2018] [Accepted: 05/03/2018] [Indexed: 02/08/2023]
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25
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Fusco F, Creta M, De Nunzio C, Iacovelli V, Mangiapia F, Li Marzi V, Finazzi Agrò E. Progressive bladder remodeling due to bladder outlet obstruction: a systematic review of morphological and molecular evidences in humans. BMC Urol 2018; 18:15. [PMID: 29519236 PMCID: PMC5844070 DOI: 10.1186/s12894-018-0329-4] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 02/28/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Bladder outlet obstruction is a common urological condition. We aimed to summarize available evidences about bladder outlet obstruction-induced molecular and morphological alterations occurring in human bladder. METHODS We performed a literature search up to December 2017 including clinical and preclinical basic research studies on humans. The following search terms were combined: angiogenesis, apoptosis, bladder outlet obstruction, collagen, electron microscopy, extracellular matrix, fibrosis, hypoxia, histology, inflammation, innervation, ischemia, pressure, proliferation, remodeling, suburothelium, smooth muscle cells, stretch, urothelium. RESULTS We identified 36 relevant studies. A three-stages model of bladder wall remodeling can be hypothesized involving an initial hypertrophy phase, a subsequent compensation phase and a later decompensation. Histological and molecular alterations occur in the following compartments: urothelium, suburothelium, detrusor smooth muscle cells, detrusor extracellular matrix, nerves. Cyclic stretch, increased hydrostatic and cyclic hydrodynamic pressure and hypoxia are stimuli capable of modulating multiple signaling pathways involved in this remodeling process. CONCLUSIONS Bladder outlet obstruction leads to progressive bladder tissue remodeling in humans. Multiple signaling pathways are involved.
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Affiliation(s)
- Ferdinando Fusco
- Dipartimento di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Università Degli Studi Di Napoli Federico II, Via Pansini, 5, 80131 Naples, Italy
| | - Massimiliano Creta
- Dipartimento di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Università Degli Studi Di Napoli Federico II, Via Pansini, 5, 80131 Naples, Italy
| | - Cosimo De Nunzio
- Dipartimento di Urologia, Ospedale Sant’Andrea, Università Degli Studi di Roma “La Sapienza”, Rota, Italy
| | - Valerio Iacovelli
- Dipartimento di Medicina Sperimentale e Chirurgia, Università Degli Studi di Roma “Tor Vergata”, Roma, Italy
| | - Francesco Mangiapia
- Dipartimento di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Università Degli Studi Di Napoli Federico II, Via Pansini, 5, 80131 Naples, Italy
| | - Vincenzo Li Marzi
- Dipartimento di Urologia, Ospedale Careggi, Università Degli Studi di Firenze, Firenze, Italy
| | - Enrico Finazzi Agrò
- Dipartimento di Medicina Sperimentale e Chirurgia, Università Degli Studi di Roma “Tor Vergata”, Roma, Italy
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26
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Improved isolation strategies to increase the yield and purity of human urinary exosomes for biomarker discovery. Sci Rep 2018; 8:3945. [PMID: 29500443 PMCID: PMC5834546 DOI: 10.1038/s41598-018-22142-x] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 02/12/2018] [Indexed: 12/13/2022] Open
Abstract
Circulating miRNAs are detected in extracellular space and body fluids such as urine. Circulating RNAs can be packaged in secreted urinary extracellular vesicles (uEVs) and thus protected from degradation. Urinary exosome preparations might contain specific miRNAs, relevant as biomarkers in renal and bladder diseases. Major difficulties in application of uEVs into the clinical environment are the high variability and low reproducibility of uEV isolation methods. Here we used five different methods to isolate uEVs and compared the size distribution, morphology, yield, presence of exosomal protein markers and RNA content of uEVs. We present an optimized ultracentrifugation and size exclusion chromatography approach for highly reproducible isolation for 50-150 nm uEVs, corresponding to the exosomes, from 50 ml urine. We profiled the miRNA content of uEVs and total urine from the same samples with the NanoString platform and validated the data using qPCR. Our results indicate that 18 miRNAs, robustly detected in uEVs were always present in the total urine. However, 15 miRNAs could be detected only in the total urine preparations and might represent naked circulating miRNA species. This is a novel unbiased and reproducible strategy for uEVs isolation, content normalization and miRNA cargo analysis, suitable for biomarker discovery studies.
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27
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Baumgartner U, Berger F, Hashemi Gheinani A, Burgener SS, Monastyrskaya K, Vassella E. miR-19b enhances proliferation and apoptosis resistance via the EGFR signaling pathway by targeting PP2A and BIM in non-small cell lung cancer. Mol Cancer 2018; 17:44. [PMID: 29455644 PMCID: PMC5817797 DOI: 10.1186/s12943-018-0781-5] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 02/01/2018] [Indexed: 12/19/2022] Open
Abstract
Background Epidermal growth factor receptor (EGFR) mutations enable constitutive active downstream signaling of PI3K/AKT, KRAS/ERK and JAK/STAT pathways, and promote tumor progression by inducing uncontrolled proliferation, evasion of apoptosis and migration of non-small cell lung cancer (NSCLC). In addition, such EGFR mutations increase the susceptibility of patients with NSCLC to tyrosine kinase inhibitor (TKI) therapy, but treated patients will invariably relapse with resistant disease. A global understanding of underlying molecular mechanisms of EGFR signaling may improve the management of NSCLC patients. Methods microarray analysis was performed to identify PI3K/AKT-regulated miRNAs. Phosphoproteomic analysis and cell based assays were performed using NSCLC cell lines lentivirally transduced with anti-miR or miR overexpressing constructs. Results Here, we show that 17 miRNAs including members of the miR-17~ 92 cluster are dysregulated following PI3K/AKT inhibition of EGFR mutant NSCLC cells. Bioinformatics analysis revealed that dysregulated miRNAs act in a concerted manner to enhance the activity of the EGFR signaling pathway. These findings were closely mirrored by attenuation of miR-17~ 92 family member miR-19b in NSCLC cell lines which resulted in reduced phosphorylation of ERK, AKT and STAT and effector proteins in EGFR mutant NSCLC cells. Consistent with this finding, cell cycle progression, clonogenic growth and migration were reduced and apoptosis was enhanced. Co-treatment of NSCLC cells with the tyrosine kinase inhibitor (TKI) gefitinib and anti-miR-19b construct reduced migration and clonogenic growth in a synergistic manner suggesting that EGFR and miR-19b act together to control oncogenic processes. Serine/threonine phosphatase PP2A subunit PPP2R5E and BCL2L11 encoding BIM were identified as major targets of miR-19b by target validation assays. Consistent with this finding, PP2A activity was strongly enhanced in NSCLC transduced with anti-miR-19b construct, but not in cells co-transduced with anti-miR-19b and shPPP2R5E, suggesting that PPP2R5E is a major constituent of the PP2A complex. Accordingly, enhanced proliferation by miR-19b was due to targeting PPP2R5E. In contrast, apoptosis resistance was mainly due to targeting BCL2L11. Conclusion Our results provide insight into the importance of targeting PPP2R5E and BCL2L11 by miR-19b in oncogenic processes of NSCLC. Attenuation of miR-19b expression could potentially be exploited in adjuvant therapy of EGFR mutant NSCLC. Electronic supplementary material The online version of this article (10.1186/s12943-018-0781-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ulrich Baumgartner
- Institute of Pathology, University of Bern, Bern, Switzerland.,Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Fabienne Berger
- Institute of Pathology, University of Bern, Bern, Switzerland
| | | | - Sabrina Sofia Burgener
- Institute for Virology and Immunology, Vetsuisse Faculty, University of Bern, Mittelhäusern, Bern, Switzerland
| | | | - Erik Vassella
- Institute of Pathology, University of Bern, Bern, Switzerland. .,Institut für Pathologie, University of Bern, Murtenstrasse 31, CH-3008, Bern, Switzerland.
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28
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Zhu B, Ekman M, Svensson D, Lindvall JM, Nilsson BO, Uvelius B, Swärd K. Array profiling reveals contribution of Cthrc1 to growth of the denervated rat urinary bladder. Am J Physiol Renal Physiol 2018; 314:F893-F905. [PMID: 29357417 DOI: 10.1152/ajprenal.00499.2017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Bladder denervation and bladder outlet obstruction are urological conditions that cause bladder growth. Transcriptomic surveys in outlet obstruction have identified differentially expressed genes, but similar studies following denervation have not been done. This was addressed using a rat model in which the pelvic ganglia were cryo-ablated followed by bladder microarray analyses. At 10 days following denervation, bladder weight had increased 5.6-fold, and 2,890 mRNAs and 135 micro-RNAs (miRNAs) were differentially expressed. Comparison with array data from obstructed bladders demonstrated overlap between the conditions, and 10% of mRNAs changed significantly and in the same direction. Many mRNAs, including collagen triple helix repeat containing 1 ( Cthrc1), Prc1, Plod2, and Dkk3, and miRNAs, such as miR-212 and miR-29, resided in the shared signature. Discordantly regulated transcripts in the two models were rare, making up for <0.07% of all changes, and the gene products in this category localized to the urothelium of normal bladders. These transcripts may potentially be used to diagnose sensory denervation. Western blotting demonstrated directionally consistent changes at the protein level, with increases of, e.g., Cthrc1, Prc1, Plod2, and Dkk3. We chose Cthrc1 for further studies and found that Cthrc1 was induced in the smooth muscle cell (SMC) layer following denervation. TGF-β1 stimulation and miR-30d-5p inhibition increased Cthrc1 in bladder SMCs, and knockdown and overexpression of Cthrc1 reduced and increased SMC proliferation. This work defines common and distinguishing features of bladder denervation and obstruction and suggests a role for Cthrc1 in bladder growth following denervation.
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Affiliation(s)
- Baoyi Zhu
- Department of Experimental Medical Science, Lund University , Lund , Sweden.,Department of Urology, the Sixth Affiliated Hospital of Guangzhou Medical University , Guangdong , China
| | - Mari Ekman
- Department of Experimental Medical Science, Lund University , Lund , Sweden
| | - Daniel Svensson
- Department of Experimental Medical Science, Lund University , Lund , Sweden
| | - Jessica M Lindvall
- National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University , Stockholm , Sweden
| | - Bengt-Olof Nilsson
- Department of Experimental Medical Science, Lund University , Lund , Sweden
| | - Bengt Uvelius
- Section of Urology, Department of Clinical Science, Lund University , Lund , Sweden
| | - Karl Swärd
- Department of Experimental Medical Science, Lund University , Lund , Sweden
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29
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Urinary Biomarkers for Bladder Outlet Obstruction. CURRENT BLADDER DYSFUNCTION REPORTS 2017. [DOI: 10.1007/s11884-017-0418-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Vasquez E, Cristofaro V, Lukianov S, Burkhard FC, Gheinani AH, Monastyrskaya K, Bielenberg DR, Sullivan MP, Adam RM. Deletion of neuropilin 2 enhances detrusor contractility following bladder outlet obstruction. JCI Insight 2017; 2:e90617. [PMID: 28194441 DOI: 10.1172/jci.insight.90617] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Chronic urethral obstruction and the ensuing bladder wall remodeling can lead to diminished bladder smooth muscle (BSM) contractility and debilitating lower urinary tract symptoms. No effective pharmacotherapy exists to restore BSM contractile function. Neuropilin 2 (Nrp2) is a transmembrane protein that is highly expressed in BSM. Nrp2 deletion in mice leads to increased BSM contraction. We determined whether genetic ablation of Nrp2 could restore BSM contractility following obstruction. Partial bladder outlet obstruction (pBOO) was created by urethral occlusion in mice with either constitutive and ubiquitous, or inducible smooth muscle-specific deletion of Nrp2, and Nrp2-intact littermates. Mice without obstruction served as additional controls. Contractility was measured by isometric tension testing. Nrp2 deletion prior to pBOO increased force generation in BSM 4 weeks following surgery. Deletion of Nrp2 in mice already subjected to pBOO for 4 weeks showed increased contractility of tissues tested 6 weeks after surgery compared with nondeleted controls. Assessment of tissues from patients with urodynamically defined bladder outlet obstruction revealed reduced NRP2 levels in obstructed bladders with compensated compared with decompensated function, relative to asymptomatic controls. We conclude that downregulation of Nrp2 promotes BSM force generation. Neuropilin 2 may represent a novel target to restore contractility following obstruction.
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Affiliation(s)
- Evalynn Vasquez
- Urological Diseases Research Center, Boston Children's Hospital.,Department of Surgery, Harvard Medical School
| | - Vivian Cristofaro
- Department of Surgery, Harvard Medical School.,Division of Urology, Veterans Affairs Boston Healthcare System, Boston, Massachusetts, USA
| | - Stefan Lukianov
- Urological Diseases Research Center, Boston Children's Hospital
| | - Fiona C Burkhard
- Urology Research Laboratory, Department of Clinical Research, Universität Bern, Bern, Switzerland
| | - Ali Hashemi Gheinani
- Urology Research Laboratory, Department of Clinical Research, Universität Bern, Bern, Switzerland
| | - Katia Monastyrskaya
- Urology Research Laboratory, Department of Clinical Research, Universität Bern, Bern, Switzerland
| | - Diane R Bielenberg
- Department of Surgery, Harvard Medical School.,Vascular Biology Program, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Maryrose P Sullivan
- Department of Surgery, Harvard Medical School.,Division of Urology, Veterans Affairs Boston Healthcare System, Boston, Massachusetts, USA
| | - Rosalyn M Adam
- Urological Diseases Research Center, Boston Children's Hospital.,Department of Surgery, Harvard Medical School
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