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Ha JY, Lee EH, Chun SY, Lee JN, Ha YS, Chung JW, Yoon BH, Jeon M, Kim HT, Kwon TG, Yoo ES, Kim BS. The Efficacy and Safety of a Human Perirenal Adipose Tissue-Derived Stromal Vascular Fraction in an Interstitial Cystitis Rat Model. Tissue Eng Regen Med 2023; 20:225-237. [PMID: 36600004 PMCID: PMC10070579 DOI: 10.1007/s13770-022-00505-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/19/2022] [Accepted: 10/27/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Interstitial cystitis (IC) is a chronic and intractable disease that can severely deteriorate patients' quality of life. Recently, stem cell therapy has been introduced as a promising alternative treatment for IC in animal models. We aimed to verify the efficacy and safety of the human perirenal adipose tissue-derived stromal vascular fraction (SVF) in an IC rat model. METHODS From eight-week-old female rats, an IC rat model was established by subcutaneous injection of 200 μg of uroplakin3A. The SVF was injected into the bladder submucosal layer of IC rats, and pain scale analysis, awakening cytometry, and histological and gene analyses of the bladder were performed. For the in vivo safety analysis, genomic DNA purification and histological analysis were also performed to check tumorigenicity and thrombus formation. RESULTS The mean pain scores in the SVF 20 μl group were significantly lower on days 7 and 14 than those in the control group, and bladder intercontraction intervals were significantly improved in the SVF groups in a dose-dependent manner. Regeneration of the bladder epithelium, basement membrane, and lamina propria was observed in the SVF group. In the SVF groups, however, bladder fibrosis and the expression of inflammatory markers were not significantly improved compared to those in the control group. CONCLUSION This study demonstrated that a perirenal adipose tissue-derived SVF is a promising alternative for the management of IC in terms of improving bladder pain and overactivity.
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Affiliation(s)
- Ji Yong Ha
- Department of Urology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Eun Hye Lee
- Joint Institute for Regenerative Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - So Young Chun
- BioMedical Research Institute, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Jun Nyung Lee
- Department of Urology, School of Medicine, Kyungpook National University, Chilgok Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Yun-Sok Ha
- Department of Urology, School of Medicine, Kyungpook National University, Chilgok Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Jae-Wook Chung
- Department of Urology, School of Medicine, Kyungpook National University, Chilgok Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Bo Hyun Yoon
- Joint Institute for Regenerative Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Minji Jeon
- Joint Institute for Regenerative Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Hyun Tae Kim
- Department of Urology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944, Republic of Korea
| | - Tae Gyun Kwon
- Department of Urology, School of Medicine, Kyungpook National University, Chilgok Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Eun Sang Yoo
- Department of Urology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944, Republic of Korea.
| | - Bum Soo Kim
- Department of Urology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944, Republic of Korea.
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Ishida K, Mbanefo EC, Le L, Lamanna O, Pennington LF, Finkel JC, Jardetzky TS, Falcone FH, Hsieh MH. IPSE, a parasite-derived, host immunomodulatory infiltrin protein, alleviates resiniferatoxin-induced bladder pain. Mol Pain 2021; 16:1744806920970099. [PMID: 33342372 PMCID: PMC7756320 DOI: 10.1177/1744806920970099] [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] [Indexed: 11/16/2022] Open
Abstract
The transient receptor potential cation channel subfamily V member 1 (TRPV1)
receptor is an important mediator of nociception and its expression is enriched
in nociceptive neurons. TRPV1 signaling has been implicated in bladder pain and
is a potential analgesic target. Resiniferatoxin is the most potent known
agonist of TRPV1. Acute exposure of the rat bladder to resiniferatoxin has been
demonstrated to result in pain-related freezing and licking behaviors that are
alleviated by virally encoded IL-4. The interleukin-4-inducing principle of
Schistosoma mansoni eggs (IPSE) is a powerful inducer of
IL-4 secretion, and is also known to alter host cell transcription through a
nuclear localization sequence-based mechanism. We previously reported that IPSE
ameliorates ifosfamide-induced bladder pain in an IL-4- and nuclear localization
sequence-dependent manner. We hypothesized that pre-administration of IPSE to
resiniferatoxin-challenged mice would dampen pain-related behaviors. IPSE indeed
lessened resiniferatoxin-triggered freezing behaviors in mice. This was a
nuclear localization sequence-dependent phenomenon, since administration of a
nuclear localization sequence mutant version of IPSE abrogated IPSE’s analgesic
effect. In contrast, IPSE’s analgesic effect did not seem IL-4-dependent, since
use of anti-IL-4 antibody in mice given both IPSE and resiniferatoxin did not
significantly affect freezing behaviors. RNA-Seq analysis of resiniferatoxin-
and IPSE-exposed bladders revealed differential expression of TNF/NF-κb-related
signaling pathway genes. In vitro testing of IPSE uptake by
urothelial cells and TRPV1-expressing neuronal cells showed uptake by both cell
types. Thus, IPSE’s nuclear localization sequence-dependent therapeutic effects
on TRPV1-mediated bladder pain may act on TRPV1-expressing neurons and/or may
rely upon urothelial mechanisms.
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Affiliation(s)
- Kenji Ishida
- Division of Urology, Department of Surgery, Children's National Hospital, Washington, DC, USA
| | - Evaristus C Mbanefo
- Division of Urology, Department of Surgery, Children's National Hospital, Washington, DC, USA
| | - Loc Le
- Biomedical Research Institute, Rockville, MD, USA
| | - Olivia Lamanna
- Division of Urology, Department of Surgery, Children's National Hospital, Washington, DC, USA
| | - Luke F Pennington
- Department of Structural Biology, Stanford University, Stanford, CA, USA
| | - Julia C Finkel
- Department of Anesthesiology, Pain and Perioperative Medicine, Children's National Hospital, Washington, DC, USA
| | | | - Franco H Falcone
- Institute of Parasitology, Justus-Liebig-Universität Gießen, Gießen, Germany
| | - Michael H Hsieh
- Division of Urology, Department of Surgery, Children's National Hospital, Washington, DC, USA
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Immunomodulatory Therapies for Interstitial Cystitis/Bladder Pain Syndrome. CURRENT BLADDER DYSFUNCTION REPORTS 2020. [DOI: 10.1007/s11884-020-00593-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Downregulation of adenosine and adenosine A1 receptor contributes to neuropathic pain in resiniferatoxin neuropathy. Pain 2019; 159:1580-1591. [PMID: 29672450 PMCID: PMC6085133 DOI: 10.1097/j.pain.0000000000001246] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This study demonstrates that functional prostatic acid phosphatase is required for maintaining the balance of cellular adenosine analgesia in systemic small-fiber neuropathy. The neurochemical effects of adenosine signaling in small-fiber neuropathy leading to neuropathic pain are yet to be explored in a direct manner. This study examined this system at the level of ligand (through the ectonucleotidase activity of prostatic acid phosphatase [PAP]) and adenosine A1 receptors (A1Rs) in resiniferatoxin (RTX) neuropathy, a peripheral neurodegenerative disorder that specifically affects nociceptive nerves expressing transient receptor potential vanilloid type 1 (TRPV1). We conducted immunohistochemistry on dorsal root ganglion (DRG) neurons, high-performance liquid chromatography for functional assays, and pharmacological interventions to alter PAP and A1Rs in mice with RTX neuropathy. In DRG of RTX neuropathy, PAP(+) neurons were reduced compared with vehicle-treated mice (P = 0.002). Functionally, PAP ectonucleotidase activity was consequently reduced (ie, the content of adenosine in DRG, P = 0.012). PAP(+) neuronal density was correlated with the degree of mechanical allodynia, which was reversed by intrathecal (i.t.) lumbar puncture injection of recombinant PAP with a dose-dependent effect. Furthermore, A1Rs were downregulated (P = 0.002), and this downregulation was colocalized with the TRPV1 receptor (31.0% ± 2.8%). Mechanical allodynia was attenuated in a dose-dependent response by i.t. injection of the A1R ligand, adenosine; however, no analgesia was evident when an exogenous adenosine was blocked by A1R antagonist. This study demonstrated dual mechanisms of neuropathic pain in TRPV1-induced neuropathy, involving a reduced adenosine system at both the ligand (adenosine) and receptor (A1Rs) levels.
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Majima T, Mori K, Kadekawa K, Takai S, Funahashi Y, Reinhart B, Goins WF, Gotoh M, Glorioso JC, Yoshimura N. The effect of herpes simplex virus vector‐mediated gene therapy of
protein phosphatase 1α
on bladder overactivity and nociception. Neurourol Urodyn 2018; 38:582-590. [DOI: 10.1002/nau.23882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/30/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Tsuyoshi Majima
- Department of UrologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
- Department of UrologyNagoya University Graduate School of MedicineNagoyaJapan
| | - Kenichi Mori
- Department of UrologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
| | - Katsumi Kadekawa
- Department of UrologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
| | - Shun Takai
- Department of UrologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
- Department of UrologyNagoya University Graduate School of MedicineNagoyaJapan
| | - Yasuhito Funahashi
- Department of UrologyNagoya University Graduate School of MedicineNagoyaJapan
| | - Bonnie Reinhart
- Departments of Microbiology and Molecular GeneticsUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
| | - William F. Goins
- Departments of Microbiology and Molecular GeneticsUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
| | - Momokazu Gotoh
- Department of UrologyNagoya University Graduate School of MedicineNagoyaJapan
| | - Joseph C. Glorioso
- Departments of Microbiology and Molecular GeneticsUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
| | - Naoki Yoshimura
- Department of UrologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvania
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Ogawa T, Ishizuka O, Ueda T, Tyagi P, Chancellor MB, Yoshimura N. Pharmacological management of interstitial cystitis /bladder pain syndrome and the role cyclosporine and other immunomodulating drugs play. Expert Rev Clin Pharmacol 2018; 11:495-505. [PMID: 29575959 DOI: 10.1080/17512433.2018.1457435] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
INTRODUCTION Interstitial cystitis/bladder pain syndrome (IC/BPS) is a symptomatic disorder characterized by pelvic pain and urinary frequency. Immunological responses are considered as one of the possible etiologies of IC/BPS. In this review, we focused on emerging targets, especially on those modulating immunological mechanisms for the treatments of IC/BPS. Area covered: This review was based on the literature search of PubMed/MEDLINE, for which key words following bladder pain syndrome, interstitial cystitis, and/or cyclosporine A (CyA) were used. We discussed current treatments and the drugs targeting the immune responses including CyA and other drugs with different mechanisms including NGF antibodies and P2X3 antagonists. Expert commentary: IC/BPS is often difficult to treat by current treatments. Immunosuppression agents, especially CyA are considered as effective treatments for IC/BPS with Hunner's lesion because these drugs suppress the inflammatory responses in the bladder underlying urinary symptoms of the disease. Base on the previous literatures, we should use CyA for the refractory IC/BPS, especially that with Hunner's lesion due to its side effects. New drugs targeting other mechanisms such as urothelial or afferent nerve dysfunction or new delivery systems such as sustained drug releasing devices or gene therapy techniques may be promising for the future treatments of IC/BPS.
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Affiliation(s)
- Teruyuki Ogawa
- a Department of Urology , Shinshu University School of Medicine , Matsumoto , Japan.,b Department of Urology , University of Pittsburgh School of Medicine , Pittsburgh , PA , USA
| | - Osamu Ishizuka
- a Department of Urology , Shinshu University School of Medicine , Matsumoto , Japan
| | - Tomohiro Ueda
- c Department of Urology , Ueda Clinic , Kyoto , Japan
| | - Pradeep Tyagi
- b Department of Urology , University of Pittsburgh School of Medicine , Pittsburgh , PA , USA
| | - Michael B Chancellor
- d Department of Urology , Oakland University William Beaumont School of Medicine , Royal Oak , MI , USA
| | - Naoki Yoshimura
- b Department of Urology , University of Pittsburgh School of Medicine , Pittsburgh , PA , USA.,c Department of Urology , Ueda Clinic , Kyoto , Japan
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Effects of herpes simplex virus vectors encoding poreless TRPV1 or protein phosphatase 1α in a rat cystitis model induced by hydrogen peroxide. Gene Ther 2017; 25:20-26. [PMID: 29057994 PMCID: PMC5814327 DOI: 10.1038/gt.2017.94] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 08/30/2017] [Accepted: 09/29/2017] [Indexed: 02/08/2023]
Abstract
Enhanced afferent excitability is considered to be an important pathophysiological basis of interstitial cystitis/bladder pain syndrome (IC/BPS). In addition, transient receptor potential vanilloid-1 (TRPV1) receptors are known to be involved in afferent sensitization. Animals with hydrogen peroxide (HP)-induced cystitis have been used as a model exhibiting pathologic characteristics of chronic inflammatory condition of the bladder. This study investigated the effect of gene therapy with replication-defective herpes simplex virus (HSV) vectors encoding poreless TRPV1 (PL) or protein phosphatase 1 α (PP1α), a negative regulator of TRPV1, using a HP-induced rat model of cystitis. HSV vectors encoding green fluorescent protein, PL or PP1α were inoculated into the bladder wall of female rats. After 1 week, 1% HP or normal saline was administered into the bladder, and the evaluations were performed 2 weeks after viral inoculation. In HP-induced cystitis rats, gene delivery of PL or PP1α decreased pain behavior as well as a reduction in the intercontraction interval. Also, both treatments reduced nerve growth factor expression in the bladder mucosa, reduced bladder inflammation characterized by infiltration of inflammatory cells and increased bladder weight. Taken together, HSV-mediated gene therapy targeting TRPV1 receptors could be effective for the treatment of IC/BPS.
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8
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Mykoniatis I, Katafigiotis I, Sfoungaristos S, Yutkin V. Immunotherapy options for painful bladder syndrome: what’s the potential? Expert Opin Biol Ther 2017; 17:1471-1480. [DOI: 10.1080/14712598.2017.1375094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ioannis Mykoniatis
- 1st Urology Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Vladimir Yutkin
- Hadassah and Hebrew University Hospital, Urology Department, Jerusalem, Israel
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9
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Tyagi P, Kashyap M, Majima T, Kawamorita N, Yoshizawa T, Yoshimura N. Intravesical liposome therapy for interstitial cystitis. Int J Urol 2017; 24:262-271. [DOI: 10.1111/iju.13317] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/22/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Pradeep Tyagi
- Department of Urology; University of Pittsburgh; Pittsburgh Pennsylvania USA
| | - Mahendra Kashyap
- Department of Urology; University of Pittsburgh; Pittsburgh Pennsylvania USA
| | - Tsuyoshi Majima
- Department of Urology; Nagoya University Graduate School of Medicine; Nagoya Aichi Japan
| | - Naoki Kawamorita
- Department of Urology; Tohoku University Graduate School of Medicine; Sendai Miyagi Japan
| | | | - Naoki Yoshimura
- Department of Urology; University of Pittsburgh; Pittsburgh Pennsylvania USA
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10
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Dogishi K, Okamoto K, Majima T, Konishi-Shiotsu S, Homan T, Kodera M, Oyama S, Oyama T, Shirakawa H, Yoshimura N, Nakagawa T, Kaneko S. A rat long-lasting cystitis model induced by intravesical injection of hydrogen peroxide. Physiol Rep 2017; 5:5/4/e13127. [PMID: 28242819 PMCID: PMC5328770 DOI: 10.14814/phy2.13127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 12/26/2022] Open
Abstract
Novel longer lasting inflammatory bladder animal models are needed to better understand the pathophysiology of chronic cystitis. We previously developed a relatively long‐lasting mouse cystitis model by intravesical injection of hydrogen peroxide (H2O2). To further evaluate its pathophysiology, in this study, we established and analyzed a rat cystitis model. Under anesthesia, 1.5% H2O2 solution was introduced transurethrally into the bladder of female rats, and kept for 30 min. The H2O2 injection significantly increased the number of micturition events up to day 14 and decreased urine volume per micturition, with the smallest volumes on day 3, compared with the vehicle‐treated group. Cystometric analysis on day 7 revealed that intercontraction intervals were significantly shortened without affecting the baseline, threshold, or maximum pressures. Intravesical resiniferatoxin‐evoked nociceptive behaviors, such as freezing, were significantly enhanced on days 7 and 14. Furthermore, histopathology revealed hemorrhage, edema, infiltration of neutrophils into the lamina propria, and urothelial denudation in the early phase (day 1). These damages were gradually repaired, while hyperplasia of the urothelium, vascularization, increases in fibroblast counts, and infiltration of mast cells and eosinophils were observed through the later phase (days 7 and 14). These results suggest that intravesical H2O2 injection induces relatively long‐lasting cystitis with enhanced bladder activity and pain sensation in rats. This approach thus provides a novel rat long‐lasting cystitis model that allows us to analyze detailed symptoms and pathophysiology of H2O2‐induced cystitis model than the mouse model and may be used to investigate the pathophysiology and treatment of chronic bladder hypersensitive disorders, such as bladder pain syndrome/interstitial cystitis.
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Affiliation(s)
- Koji Dogishi
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Ken Okamoto
- Discovery Research Laboratories, Nippon Shinyaku Co., Ltd., Minami-ku, Kyoto, Japan
| | - Tsuyoshi Majima
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | - Takashi Homan
- Discovery Research Laboratories, Nippon Shinyaku Co., Ltd., Minami-ku, Kyoto, Japan
| | - Mizuki Kodera
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Shohei Oyama
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Tatsuya Oyama
- Discovery Research Laboratories, Nippon Shinyaku Co., Ltd., Minami-ku, Kyoto, Japan
| | - Hisashi Shirakawa
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Naoki Yoshimura
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Takayuki Nakagawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Sakyo-ku, Kyoto, Japan
| | - Shuji Kaneko
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
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Ma E, Vetter J, Bliss L, Lai HH, Mysorekar IU, Jain S. A multiplexed analysis approach identifies new association of inflammatory proteins in patients with overactive bladder. Am J Physiol Renal Physiol 2016; 311:F28-34. [PMID: 27029431 DOI: 10.1152/ajprenal.00580.2015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 03/27/2016] [Indexed: 12/30/2022] Open
Abstract
Overactive bladder (OAB) is a common debilitating bladder condition with unknown etiology and limited diagnostic modalities. Here, we explored a novel high-throughput and unbiased multiplex approach with cellular and molecular components in a well-characterized patient cohort to identify biomarkers that could be reliably used to distinguish OAB from controls or provide insights into underlying etiology. As a secondary analysis, we determined whether this method could discriminate between OAB and other chronic bladder conditions. We analyzed plasma samples from healthy volunteers (n = 19) and patients diagnosed with OAB, interstitial cystitis/bladder pain syndrome (IC/BPS), or urinary tract infections (UTI; n = 51) for proinflammatory, chemokine, cytokine, angiogenesis, and vascular injury factors using Meso Scale Discovery (MSD) analysis and urinary cytological analysis. Wilcoxon rank-sum tests were used to perform univariate and multivariate comparisons between patient groups (controls, OAB, IC/BPS, and UTI). Multivariate logistic regression models were fit for each MSD analyte on 1) OAB patients and controls, 2) OAB and IC/BPS patients, and 3) OAB and UTI patients. Age, race, and sex were included as independent variables in all multivariate analysis. Receiver operating characteristic (ROC) curves were generated to determine the diagnostic potential of a given analyte. Our findings demonstrate that five analytes, i.e., interleukin 4, TNF-α, macrophage inflammatory protein-1β, serum amyloid A, and Tie2 can reliably differentiate OAB relative to controls and can be used to distinguish OAB from the other conditions. Together, our pilot study suggests a molecular imbalance in inflammatory proteins may contribute to OAB pathogenesis.
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Affiliation(s)
- Emily Ma
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, Missouri
| | - Joel Vetter
- Division of Urologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri; and
| | - Laura Bliss
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - H Henry Lai
- Division of Urologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri; and Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri
| | - Indira U Mysorekar
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, Missouri; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Sanjay Jain
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri; Renal Division, Internal Medicine, Washington University School of Medicine, St. Louis, Missouri;
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Hirose Y, Yamamoto T, Nakashima M, Funahashi Y, Matsukawa Y, Yamaguchi M, Kawabata S, Gotoh M. Injection of Dental Pulp Stem Cells Promotes Healing of Damaged Bladder Tissue in a Rat Model of Chemically Induced Cystitis. Cell Transplant 2016; 25:425-36. [DOI: 10.3727/096368915x689523] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Dental pulp stem cells (DPSCs) are reported as sources of mesenchymal stem cells (MSCs). MSCs are used as cell therapy options for various diseases. The present study examined the healing effects of DPSC injection on damaged bladder tissue in a chemically induced cystitis rat model. Cystitis was induced by hydrochloride injection into the bladder of female F344/NSlc rats. On the following day, DPSCs suspended in phosphate-buffered saline (PBS) were injected into the bladder and maintained for 1 h (DPSC injection group), while PBS alone was injected as the standard for comparison (PBS injection group). After 2 days following injection, considerable submucosal edema, vascular structure destruction, hemorrhage, and inflammatory cell invasion were observed both in the DPSC and PBS injection groups, with no difference in their degree of submucosal edema and hemorrhage. Six days after injection, vascular structure regeneration was observed in both groups; however, unlike the DPSC injection group, the PBS injection group showed traces of submucosal edema and hemorrhage. These results correlated with tissue concentrations of myeloperoxidase (MPO) and the inflammatory cytokines IL-1β, IL-6, and TNF-α. Furthermore, the intercontraction interval was prolonged, and the frequency of nociceptive behaviors was reduced in the DPSC injection group compared with the PBS injection group. DPSCs were found on the bladder epithelium until day 3 after injection. In the DPSC-conditioned media (CM), the trophic factors FGF-2, VEGF, and the C-C and C-X-C families of chemokines were detected. The results of DPSC injection into the cystitis rat model suggested that the injected cells promote the healing of the damaged bladder tissue by exerting various trophic effects while localizing on the bladder epithelium and that MSC injection is a potential novel therapy for interstitial cystitis/painful bladder syndrome.
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Affiliation(s)
- Yujiro Hirose
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Dental Regenerative Medicine, Center of Advanced Medicine for Dental and Oral Diseases, National Center for Geriatrics and Gerontology, Obu, Japan
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Tokunori Yamamoto
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Misako Nakashima
- Department of Dental Regenerative Medicine, Center of Advanced Medicine for Dental and Oral Diseases, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Yasuhito Funahashi
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshihisa Matsukawa
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaya Yamaguchi
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Shigetada Kawabata
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Momokazu Gotoh
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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13
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Kawamorita N, Yoshikawa S, Kashyap M, Tyagi P, Arai Y, Chancellor MB, Yoshimura N. Liposome Based Intravesical Therapy Targeting Nerve Growth Factor Ameliorates Bladder Hypersensitivity in Rats with Experimental Colitis. J Urol 2016; 195:1920-6. [PMID: 26780168 DOI: 10.1016/j.juro.2015.12.090] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/31/2015] [Indexed: 12/30/2022]
Abstract
PURPOSE Pelvic organ cross sensitization is considered to contribute to overlapping symptoms in chronic pelvic pain syndrome. Nerve growth factor over expression in the bladder is reportedly involved in the symptom development of bladder pain syndrome/interstitial cystitis. We examined whether a reduction of over expressed nerve growth factor in the bladder by intravesical treatment with liposome and oligonucleotide conjugates would ameliorate bladder hypersensitivity in a rat colitis model. MATERIALS AND METHODS Adult female rats were divided into 1) a control group, 2) a colitis-oligonucleotide group with intracolonic TNBS (2,4,6-trinitrobenzene sulfonic acid) enema and intravesical liposome-oligonucleotide treatments, 2) a colitis-saline group with intracolonic TNBS and intravesical saline treatments, 4) a sham oligonucleotide group with intravesical liposome-oligonucleotide treatment without colitis and 5) a sham-saline group with intravesical saline treatment without colitis. Liposomes conjugated with nerve growth factor antisense oligonucleotide or saline solution were instilled in the bladder and 24 hours later colitis was induced by TNBS enema. Effects of nerve growth factor antisense treatment were evaluated by pain behavior, cystometry, molecular analyses and immunohistochemistry 10 days after TNBS treatment. RESULTS In colitis-oligonucleotide rats nerve growth factor antisense treatment ameliorated pain behavior and decreased a reduction in the intercontraction interval in response to acetic acid stimulation as well as nerve growth factor expression in the bladder mucosa. All were enhanced in colitis-saline rats compared to sham rats. CONCLUSIONS Nerve growth factor over expression in the bladder mucosa and bladder hypersensitivity induced after colitis were decreased by intravesical application of liposome-oligonucleotide targeting nerve growth factor. This suggests that local antinerve growth factor therapy could be effective treatment of bladder symptoms in chronic pelvic pain syndrome.
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Affiliation(s)
- Naoki Kawamorita
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Satoru Yoshikawa
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Mahendra Kashyap
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Pradeep Tyagi
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Yoichi Arai
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Michael B Chancellor
- Department of Urology, Oakland University William Beaumont School of Medicine, Royal Oak, Michigan
| | - Naoki Yoshimura
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
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14
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Wolfe D, Krisky D, Goss J, Wechuck J, Mata M, Fink DJ. Translating Gene Therapy for Pain from Animal Studies to the Clinic. Transl Neurosci 2016. [DOI: 10.1007/978-1-4899-7654-3_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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15
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Ogawa T, Ishizuka O, Ueda T, Tyagi P, Chancellor MB, Yoshimura N. Current and emerging drugs for interstitial cystitis/bladder pain syndrome (IC/BPS). Expert Opin Emerg Drugs 2015; 20:555-70. [DOI: 10.1517/14728214.2015.1105216] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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16
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Majima T, Funahashi Y, Takai S, Goins WF, Gotoh M, Tyagi P, Glorioso JC, Yoshimura N. Herpes Simplex Virus Vector-Mediated Gene Delivery of Poreless TRPV1 Channels Reduces Bladder Overactivity and Nociception in Rats. Hum Gene Ther 2015. [PMID: 26204493 DOI: 10.1089/hum.2015.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Increased afferent excitability has been proposed as an important pathophysiology of interstitial cystitis/bladder pain syndrome (IC/BPS) and overactive bladder (OAB). In this study, we investigated whether herpes simplex virus (HSV) vectors encoding poreless TRPV1, in which the segment in C terminus of TRPV1 receptor is deleted, suppress bladder overactivity and pain behavior using a rat model of chemical cystitis. Replication-defective HSV vectors encoding poreless TRPV1 were injected into the bladder wall of adult female Sprague-Dawley rats. Additionally, recombinant HSV virus (vHG) vectors were injected as control. Cystometry (CMG) under urethane anesthesia was performed 1 week after viral injection to evaluate bladder overactivity induced by resiniferatoxin (RTx, a TRPV1 agonist). RTx-induced nociceptive behavior such as licking (lower abdominal licking) and freezing (motionless head-turning) was observed 2 weeks after viral injection. GFP expression in L4/L6/S1 dorsal root ganglia and the bladder as well as c-Fos-positive cells in the L6 spinal cord dorsal horn were also evaluated 2 weeks after viral injection. In CMG, the poreless TRPV1 vector-treated group showed a significantly smaller reduction in intercontraction intervals and voided volume after RTx infusion than the vHG-treated control group. The number of the RTx-induced freezing events was significantly decreased in the poreless TRPV1 group than in the vHG group, whereas there was no significant difference of the number of RTx-induced licking events between groups. The number of c-Fos-positive cells in the DCM and SPN regions of the L6 spinal dorsal horn was significantly smaller in the poreless TRPV1 group than in the vHG group. Our results indicated that HSV vector-mediated gene delivery of poreless TRPV1 had a therapeutic effect on TRPV1-mediated bladder overactivity and pain behavior. Thus, the HSV vector-mediated gene therapy targeting TRPV1 receptors could be a novel modality for the treatment of OAB and/or hypersensitive bladder disorders such as IC/BPS.
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Affiliation(s)
- Tsuyoshi Majima
- 1 Department of Urology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania.,2 Department of Urology, Nagoya University Graduate School of Medicine , Nagoya, Japan
| | - Yasuhito Funahashi
- 2 Department of Urology, Nagoya University Graduate School of Medicine , Nagoya, Japan
| | - Shun Takai
- 1 Department of Urology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania.,2 Department of Urology, Nagoya University Graduate School of Medicine , Nagoya, Japan
| | - William F Goins
- 3 Department of Microbiology & Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Momokazu Gotoh
- 2 Department of Urology, Nagoya University Graduate School of Medicine , Nagoya, Japan
| | - Pradeep Tyagi
- 1 Department of Urology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Joseph C Glorioso
- 3 Department of Microbiology & Molecular Genetics, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Naoki Yoshimura
- 1 Department of Urology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
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17
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Guedon JMG, Wu S, Zheng X, Churchill CC, Glorioso JC, Liu CH, Liu S, Vulchanova L, Bekker A, Tao YX, Kinchington PR, Goins WF, Fairbanks CA, Hao S. Current gene therapy using viral vectors for chronic pain. Mol Pain 2015; 11:27. [PMID: 25962909 PMCID: PMC4446851 DOI: 10.1186/s12990-015-0018-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/01/2015] [Indexed: 02/07/2023] Open
Abstract
The complexity of chronic pain and the challenges of pharmacotherapy highlight the importance of development of new approaches to pain management. Gene therapy approaches may be complementary to pharmacotherapy for several advantages. Gene therapy strategies may target specific chronic pain mechanisms in a tissue-specific manner. The present collection of articles features distinct gene therapy approaches targeting specific mechanisms identified as important in the specific pain conditions. Dr. Fairbanks group describes commonly used gene therapeutics (herpes simplex viral vector (HSV) and adeno-associated viral vector (AAV)), and addresses biodistribution and potential neurotoxicity in pre-clinical models of vector delivery. Dr. Tao group addresses that downregulation of a voltage-gated potassium channel (Kv1.2) contributes to the maintenance of neuropathic pain. Alleviation of chronic pain through restoring Kv1.2 expression in sensory neurons is presented in this review. Drs Goins and Kinchington group describes a strategy to use the replication defective HSV vector to deliver two different gene products (enkephalin and TNF soluble receptor) for the treatment of post-herpetic neuralgia. Dr. Hao group addresses the observation that the pro-inflammatory cytokines are an important shared mechanism underlying both neuropathic pain and the development of opioid analgesic tolerance and withdrawal. The use of gene therapy strategies to enhance expression of the anti-pro-inflammatory cytokines is summarized. Development of multiple gene therapy strategies may have the benefit of targeting specific pathologies associated with distinct chronic pain conditions (by Guest Editors, Drs. C. Fairbanks and S. Hao).
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Affiliation(s)
- Jean-Marc G Guedon
- Graduate Program in Molecular Virology and Microbiology, University of Pittsburgh, School of Medicine, Pittsburgh, PA, 15213, USA. .,Department of Ophthalmology, University of Pittsburgh School of Medicine, Room 1020 EEI, 203 Lothrop Street, Pittsburgh, PA, 15213, USA.
| | - Shaogen Wu
- Department of Anesthesiology, New Jersey Medical School, Rutgers, State University of New Jersey, 185 S. Orange Ave., MSB, F-548, Newark, NJ, 07103, USA.
| | - Xuexing Zheng
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
| | | | - Joseph C Glorioso
- Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, 424 Bridgeside Point II, 450 Technology Drive, Pittsburgh, PA, 15219, USA.
| | - Ching-Hang Liu
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
| | - Shue Liu
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
| | - Lucy Vulchanova
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA.
| | - Alex Bekker
- Department of Anesthesiology, New Jersey Medical School, Rutgers, State University of New Jersey, 185 S. Orange Ave., MSB, F-548, Newark, NJ, 07103, USA.
| | - Yuan-Xiang Tao
- Department of Anesthesiology, New Jersey Medical School, Rutgers, State University of New Jersey, 185 S. Orange Ave., MSB, F-548, Newark, NJ, 07103, USA. .,Department of Cell Biology & Molecular Medicine, New Jersey Medical School, Rutgers, State University of New Jersey, Newark, NJ, 07103, USA. .,Department of Neurology & Neuroscience, New Jersey Medical School, Rutgers, State University of New Jersey, Newark, NJ, 07103, USA. .,Department of Physiology & Pharmacology, New Jersey Medical School, Rutgers, State University of New Jersey, Newark, NJ, 07103, USA.
| | - Paul R Kinchington
- Graduate Program in Molecular Virology and Microbiology, University of Pittsburgh, School of Medicine, Pittsburgh, PA, 15213, USA. .,Department of Ophthalmology, University of Pittsburgh School of Medicine, Room 1020 EEI, 203 Lothrop Street, Pittsburgh, PA, 15213, USA.
| | - William F Goins
- Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, 424 Bridgeside Point II, 450 Technology Drive, Pittsburgh, PA, 15219, USA.
| | - Carolyn A Fairbanks
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA. .,Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA. .,Department of Pharmacology, University of Minnesota, 9-177 Weaver Densford Hall, 308 Harvard Street, Minneapolis, MN, 55455, USA.
| | - Shuanglin Hao
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
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18
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Yoshimura N, Oguchi T, Yokoyama H, Funahashi Y, Yoshikawa S, Sugino Y, Kawamorita N, Kashyap MP, Chancellor MB, Tyagi P, Ogawa T. Bladder afferent hyperexcitability in bladder pain syndrome/interstitial cystitis. Int J Urol 2015; 21 Suppl 1:18-25. [PMID: 24807488 DOI: 10.1111/iju.12308] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 08/27/2013] [Indexed: 12/30/2022]
Abstract
Bladder pain syndrome/interstitial cystitis is a disease with lower urinary tract symptoms, such as bladder pain and urinary frequency, which results in seriously impaired quality of life of patients. The extreme pain and urinary frequency are often difficult to treat. Although the etiology of bladder pain syndrome/interstitial cystitis is still not known, there is increasing evidence showing that afferent hyperexcitability as a result of neurogenic bladder inflammation and urothelial dysfunction is important to the pathophysiological basis of symptom development. Further investigation of the pathophysiology will lead to the effective treatment of patients with bladder pain syndrome/interstitial cystitis.
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Affiliation(s)
- Naoki Yoshimura
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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19
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20
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Intravesical Application of Rebamipide Promotes Urothelial Healing in a Rat Cystitis Model. J Urol 2014; 192:1864-70. [DOI: 10.1016/j.juro.2014.06.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2014] [Indexed: 11/21/2022]
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21
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Yoshikawa S, Kawamorita N, Oguchi T, Funahashi Y, Tyagi P, Chancellor MB, Yoshimura N. Pelvic organ cross-sensitization to enhance bladder and urethral pain behaviors in rats with experimental colitis. Neuroscience 2014; 284:422-429. [PMID: 25445197 DOI: 10.1016/j.neuroscience.2014.08.064] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 08/19/2014] [Accepted: 08/26/2014] [Indexed: 12/12/2022]
Abstract
Neural cross-sensitization has been postulated as a mechanism underlying overlaps of chronic pelvic pain disorders such as bladder pain syndrome/interstitial cystitis (BPS/IC) and irritable bowel syndrome (IBS). Animals with experimental colitis have been used to study the underlying mechanisms for overlapped pelvic pain symptoms, and shown to exhibit bladder overactivity evidenced by frequent voiding; however, it has not directly been evaluated whether pain sensation derived from the lower urinary tract is enhanced in colitis models. Also, the cross-sensitization between the colon and urethra has not been studied previously. In the present study, we therefore investigated pain behaviors induced by nociceptive stimuli in the lower urinary tract and the involvement of C-fiber afferent pathways using rats with colitis induced by intracolonic application of 2,4,6-trinitrobenzenesulfonic acid (TNBS). In TNBS-induced colitis rats at 10 days, intravesical application of resiniferatoxin (RTx) induced a significantly greater number of episodes of both licking and freezing behaviors, which were reduced by capsaicin-sensitive C-fiber afferent desensitization. Histochemical studies using fluorescent dye tracers injected into the colon, bladder or urethra showed that dichotomized afferent neurons comprised 6.9-14.5% of L1, L6 and S1 dorsal root ganglion (DRG) neurons innervating the colon or the lower urinary tract. Transient receptor potential vanilloid 1 (TRPV1) mRNA expression was significantly increased in, the bladder, urethra and S1 DRG in colitis rats. An increase in myeloperoxidase (MPO) activity was found in the colon, but not in the bladder or urethra after intracolonic TNBS treatment. These results indicate that TNBS-induced colitis increased pain sensitivity in the bladder and urethra via activation of C-fiber afferent pathways due to colon-to-bladder and colon-to-urethral cross-sensitization, suggesting the contribution of pelvic organ cross-sensitization mechanisms to overlapped pain symptoms in BPS/IC and IBS.
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Affiliation(s)
- S Yoshikawa
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - N Kawamorita
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - T Oguchi
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Y Funahashi
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - P Tyagi
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - M B Chancellor
- Department of Urology, William Beaumont Hospital, Royal Oak, MI, USA
| | - N Yoshimura
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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22
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Huang W, Zheng W, Ouyang H, Yi H, Liu S, Zeng W, Levitt RC, Candiotti KA, Lubarsky DA, Hao S. Mechanical allodynia induced by nucleoside reverse transcriptase inhibitor is suppressed by p55TNFSR mediated by herpes simplex virus vector through the SDF1α/CXCR4 system in rats. Anesth Analg 2014; 118:671-80. [PMID: 24557113 DOI: 10.1213/ane.0000000000000079] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND In the human immunodeficiency virus (HIV)-associated sensory neuropathy, neuropathic pain associated with the use of nucleoside reverse transcriptase inhibitors (NRTIs) in patients with HIV/acquired immunodeficiency syndrome is clinically common. While evidence demonstrates that neuropathic pain is influenced by neuroinflammatory events that include the proinflammatory molecules, tumor necrosis factor-α (TNF-α), stromal cell-derived factor 1-α (SDF1-α), and C-X-C chemokine receptor type 4 (CXCR4), the detailed mechanisms by which NRTIs contribute to the development of neuropathic pain are not known. In this study, we investigated the role of these proinflammatory molecules in the dorsal root ganglion (DRG) and the spinal dorsal horn in NRTIs-mediated neuropathic pain state. METHODS Neuropathic pain was induced by intraperitoneal administration of 2',3'-dideoxycytidine (ddC, one of the NRTIs). Mechanical threshold was tested using von Frey filament fibers. Nonreplicating herpes simplex virus (HSV) vectors expressing p55 TNF soluble receptor (p55TNFSR) were inoculated into hindpaw of rats. The expression of TNF-α, SDF1-α, and CXCR4 in both the lumbar spinal cord and the L4/5 DRG was examined using Western blots. Intrathecal CXCR4 antagonist was administered. RESULTS The present study demonstrated that (1) systemic ddC induced upregulation of TNF-α, SDF1-α, and CXCR4 in both the lumbar spinal cord and the L4/5 DRG; (2) p55TNFSR mediated by a nonreplicating HSV vector reversed mechanical allodynia induced by systemic ddC; (3) intrathecal administration of the CXCR4 antagonist AMD3100 increased mechanical threshold; and (4) HSV vector expressing p55TNFSR reversed upregulation of TNF-α, SDF1-α, and CXCR4 induced by ddC in the lumbar spinal dorsal horn and the DRG. CONCLUSIONS Our studies demonstrate that TNF-α through the SDF1/CXCR4 system is involved in the NRTIs-related neuropathic pain state and that blocking the signaling of these proinflammatory molecules is able to reduce NRTIs-related neuropathic pain. These results provide a novel mechanism-based approach (gene therapy) to treating HIV-associated neuropathic pain.
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Affiliation(s)
- Wan Huang
- From the *Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, Florida; †Department of Anesthesiology, State Key Laboratory of Oncology on Southern China, Cancer Center, Sun Yat-Sen University, Guangzhou, China; ‡Department of Neurology, University of Michigan Medical School, Ann Arbor, Michigan; §Hussman Institute of Human Genomics, University of Miami Miller School of Medicine; and ‖Veterans Affairs Medical Center, Miami, Florida
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23
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Intravesical Application of Rebamipide Suppresses Bladder Inflammation in a Rat Cystitis Model. J Urol 2014; 191:1147-52. [DOI: 10.1016/j.juro.2013.11.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2013] [Indexed: 12/19/2022]
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24
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Andersson KE. This Month in Investigative Urology. J Urol 2013. [DOI: 10.1016/j.juro.2012.10.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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