Abstract
The epithelial inner layer of the lower urinary tract, i.e., the urothelium, and other parts of the mucosa are not just a passive barrier but play an active role in the sensing of stretching, neurotransmitters, paracrine mediators, hormones, and growth factors and of changes in the extracellular environment. We review the molecular and cellular mechanisms enabling the urothelium to sense such inputs and how this leads to modulation of smooth muscle contraction and relaxation. The urothelium releases various mediators including ATP, acetylcholine, prostaglandins, nitric oxide, and nerve growth factor. These may affect function and growth of smooth muscle cells and afferent nerves. However, the molecular identity of the urothelium-derived mediator directly modulating contractile and relaxant responses of isolated bladder strips has remained elusive. The morphology and function of the urothelium undergo changes with aging and in many pathophysiological conditions. Therefore, the urothelium may contribute to the therapeutic effects of established drugs to treat lower urinary tract dysfunction and may also serve as a target for novel therapeutics. However, therapeutics may also change urothelial function, and it is not always easy to determine whether such changes are part of the therapeutic response or reflect secondary alterations.
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Abbreviations
- Ach:
-
Acetylcholine
- CBS:
-
Cystathionine-β-synthase
- CSE:
-
Cystathionine-γ-lyase
- EFS:
-
Electrical field stimulation
- H2S:
-
Hydrogen sulfide
- LUT:
-
Lower urinary tract
- NGF:
-
Nerve growth factor
- NO:
-
Nitric oxide
- NOS:
-
NO synthase
- OAB:
-
Overactive bladder syndrome
- ÜG:
-
Prostaglandin
- TRP:
-
Transient receptor potential channel
- UDIF:
-
Urothelium-derived inhibitor factor
References
Afiatpour P, Latifpour J, Takahashi W, Yono M, Foster HE Jr, Ikeda K, Pouresmail M, Weiss RM (2003) Developmental changes in the functional, biochemical and molecular properties of rat bladder endothelin receptors. Naunyn Schmiedeberg's Arch Pharmacol 367:462–472
Aizawa N, Igawa Y, Nishizawa O, Wyndaele J (2011) Effects of nitric oxide on the primary bladder afferent activities of the rat with and without intravesical acrolein treatment. Eur Urol 59:264–271
Akino H, Chapple CR, McKay N, Cross RL, Murakami S, Yokoyama O, Chess-Williams R, Sellers DJ (2008) Spontaneous contractions of the pig urinary bladder: the effect of ATP-sensitive potassium channels and the role of the mucosa. BJU Int 102:1168–1174
Anderson UA, Carson C, McCloskey KD (2009) KCNQ currents and their contribution to resting membrane potential and the excitability of interstitial cells of Cajal from the guinea pig bladder. J Urol 182:330–336
Andersson KE, McCloskey KD (2014) Lamina propria: the functional center of the bladder? Neurourol Urodyn 33:9–16
Andersson KE, Persson K (1994) Nitric oxide synthase and nitric-oxide mediated effects in lower urinary tract smooth muscles. World J Urol 12:274–280
Andersson M, Aronsson P, Doufish D, Lampert A, Tobin G (2012) Muscarinic receptor subtypes involved in urothelium-derived relaxatory effects in the inflamed rat urinary bladder. Auton Neurosci: Basic Clin 170:5–11
Andersson MC, Tobin G, Giglio D (2008) Cholinergic nitric oxide release from the urinary bladder mucosa in cyclophosphamide-induced cystitis of the anaesthetized rat. Br J Pharmacol 153:1438–1444
Anisuzzaman AS, Morishima S, Suzuki F, Tanaka T, Yoshiki H, Sathi ZS, Akino H, Yokoyama O, Muramatsu I (2008) Assessment of muscarinic receptor subtypes in human and rat lower urinary tract by tissue segment binding assay. J Pharmacol Sci 106:271–279
Apodaca G, Balestreire E, Birder LA (2007) The uroepithelial-associated sensory web. Kidney Int 72:1057–1064
Apostolidis A, Dasgupta P, Fowler CJ (2006) Proposed mechanism for the efficacy of injected botulinum toxin in the treatment of human detrusor overactivity. Eur Urol 49:644–650
Arrighi N, Bodei S, Lucente A, Michel MC, Zani D, Simeone C, Cunico SC, Spano PF, Sigala S (2011) Muscarinic receptors stimulate cell proliferation in the human urothelium-derived cell line UROtsa. Pharmacol Res 64:420–425
Azadzoi KM, Heim VK, Tarcan T, Siroky MB (2004) Alteration of urothelial-mediated tone in the ischemic bladder: role of eicosanoids. Neurourol Urodyn 23:258–264
Azadzoi KM, Radisavljevic ZM, Golabek T, Yalla SV, Siroky MB (2010) Oxidative modification of mitochondrial integrity and nerve fiber density in the ischemic overactive bladder. J Urol 183:362–369
Azadzoi KM, Tarcan T, Kozlowski R, Krane RJ, Siroky MB (1999) Overactivity and structural changes in the chronically ischemic bladder. J Urol 162:1768–1778
Bahadory F, Moore KH, Liu L, Burcher E (2013) Gene expression of muscarinic, tachykinin, and purinergic receptors in porcine bladder: comparison with cultured cells. Front Pharmacol 4:148
Ballouhey Q, Panicker JN, Mazerolles C, Roumiguié M, Zaidi F, Rischmann P, Malavaud B, Gamé X (2015) Sphingosine kinase 1 urothelial expression is increased in patients with neurogenic detrusor overactivity. Int Braz J Urol 41:1141–1147
Barendrecht MM, Chichester P, Michel MC, Levin RM (2007) Effect of short-term outlet obstruction on rat bladder nerve density and contractility. Auton Autacoid Pharmacol 27:47–54
Beckel JM, Daugherty SL, Tyagi P, Wolf-Johnston AS, Birder LA, Mitchell CH, de Groat WC (2015) Pannexin 1 channels mediate the release of ATP into the lumen of the rat urinary bladder. J Physiol 593:1857–1871
Birder L, Andersson KE (2013) Urothelial signaling. Physiol Rev 93:653–680
Birder LA, Apodaca G, De Groat WC, Kanai AJ (1998) Adrenergic- and capsaicin-evoked nitric oxide release from urothelium and afferent nerves in urinary bladder. Am J Phys 275:F226–F229
Birder LA, Barrick SR, Roppolo JR, Kanai AJ, WCD G, Kiss S, Buffington CA (2003) Feline interstitial cystitis results in mechanical hypersensitivity and altered ATP release from bladder urothelium. Am J Physiol-Renal Physiol 285:F423–F429
Birder LA, De Groat WC (2007) Mechanisms of disease: involvement of the urothelium in bladder dysfunction. Nat Clin Pract Urol 4:46–54
Birder LA, Kanai AJ, Cruz F, Moore K, Fry CH (2010) Is the urothelium intelligent? Neurourol Urodyn 29:598–602
Birder LA, Nakamura Y, Kiss S, Nealen ML, Barrick S, Kanai AJ, Wang E, Ruiz G, de Groat WC, Apodaca G, Watkins S, Caterina MJ (2002a) Altered urinary bladder function in mice lacking the vanilloid receptor TRPV1. Nat Neurosci 5:856–860
Birder LA, Nealen ML, Kiss S, De Groat WC, Caterina MJ, Wang E, Apodaca G, Kanai AJ (2002b) ß-Adrenoceptor agonists stimulate endothelial nitric oxide synthase in rat urinary bladder urothelial cells. J Neurosci 22:8063–8070
Birder LA, Wolf-Johnston A, Buffington CA, Roppolo JR, de Groat WC, Kanai AJ (2005) Altered inducible nitric oxide synthase expression and nitric oxide production in the bladder of cats with feline interstitial cystitis. J Urol 173:625–629
Birder LA, Wolf-Johnston AS, Sun Y, Chai TC (2013) Alteration in TRPV1 and muscarinic M3 receptor expression and function in idiopathic overactive bladder urothelial cells. Acta Physiol (Oxf) 207:123–129
Bozkurt TE, Sahin-Erdemli I (2004) Evaluation of the rat bladder-derived relaxant factor by coaxial bioassay system. Eur J Pharmacol 495:193–199
Braverman AS, Lebed B, Linder M, Ruggieri MR Sr (2007) M2 mediated contractions of human bladder from organ donors is associated with an increase in urothelial muscarinic receptors. Neurourol Urodyn 26:63–70
Bschleipfer T, Schukowski K, Weidner W, Grando SA, Schwantes U, Kummer W, Lips KS (2007) Expression and distribution of cholinergic receptors in the human urothelium. Life Sci 80:2303–2307
Bschleipfer T, Weidner W, Kummer W, Lips KS (2012) Does bladder outlet obstruction alter the non-neuronal cholinergic system of the human urothelium? Life Sci 91:1082–1086
Buckner SA, Milicic I, Daza AV, Coghlan MJ, Gopalakrishnan M (2002) Spontaneous phasic activity of the pig urinary bladder smooth muscle: characteristics and sensitivity to potassium channel modulators. Br J Pharmacol 135:639–648
Burnstock G (2014) Purinergic signalling in the urinary tract in health and disease. Purinergic Signalling 10:103–155
Canda AE, Chapple CR, Chess-Williams R (2009) Pharmacologic responses of the mouse urinary bladder. Central European Journal of Medicine 4:192
Carneiro I, Timoteo MA, Silva I, Vieira C, Baldaia C, Ferreirinha F, Silva-Ramos M, Correia-de-Sa P (2014) Activation of P2Y6 receptors increases the voiding frequency in anaesthetized rats by releasing ATP from the bladder urothelium. Br J Pharmacol 171:3404–3419
Chaiyaprasithi B, Mang CF, Kilbinger H, Hohenfellner M (2003) Inhibition of human detrusor contraction by a urothelium derived factor. J Urol 170:1897–1890
Chancellor MB (2017) OnabotulinumtoxinA for overactive bladder and urinary incontinence. J Urol 197:S224–S225
Chen MX, Gorman SA, Benson B, Singh K, Hieble JP, Michel MC, Tate SN, Trezise DJ (2004) Small and intermediate conductance Ca2+-activated K+ channels confer distinctive patterns of distribution in human tissues and differential cellular localisation in the colon and corpus cavernosum. Naunyn Schmiedeberg's Arch Pharmacol 369:602–615
Cheng JT, Yu BC, Tong YC (2007) Changes of M3-muscarinic receptor protein and mRNA expressions in the bladder urothelium and muscle layer of streptozotocin-induced diabetic rats. Neurosci Lett 423:1–5
Cheng S, Scigalla FP, Zhang ZG, Stolzenburg JU, Neuhaus J (2011a) ATP enhances spontaneous calcium activity in cultured suburothelial myofibroblasts of the human bladder. PLoS One 6:e25769
Cheng Y, Mansfield KJ, Allen W, Chess-Williams R, Burcher E, Moore KH (2014) ATP during early bladder stretch is important for urgency in detrusor overactivity patients. Biomed Res Int 2014:6
Cheng Y, Mansfield KJ, Sandow SL, Sadananda P, Burcher E, Moore KH (2011b) Porcine bladder urothelial, myofibroblast, and detrusor muscle cells: characterization and ATP release. Front Pharmacol 2:27
Chopra B, Barrick SR, Meyers S, Beckel JM, Zeidel ML, Ford APDW, De Groat WC, Birder LA (2005) Expression and function of bradykinin B1 and B2 receptors in normal and inflamed rat urinary bladder urothelium. J Physiol Lond 562:859–871
Chuang S-M, Liu K-M, Li Y-L, Jang M-Y, Lee H-H, Wu W-J, Chang W-C, Levin RM, Juan Y-S (2013) Dual involvements of cyclooxygenase and nitric oxide synthase expressions in ketamine-induced ulcerative cystitis in rat bladder. Neurourol Urodyn 32:1137–1143
Cockayne DA, Dunn PM, Zhong Y, Rong W, Hamilton SG, Knight GE, Ruan H-Z, Ma B, Yip P, Nunn P, McMahon SB, Burnstock G, Ford APDW (2005) P2X2 knockout mice and P2X2/P2X3 double knockout mice reveal a role for the P2X2 receptor subunit in mediating multiple sensory effects of ATP. J Physiol 567:621–639
Cockayne DA, Hamilton SG, Zhu QM, Dunn PM, Zhong Y, Novakovic S, Malmberg AB, Cain G, Berson A, Kassotakis L, Hedley L, Lachnit WG, Burnstock G, McMahon SB, Ford APDW (2000) Urinary bladder hyporeflexia and reduced pain-related behaviour in P2X 3-deficient mice. Nature 407:1011–1015
Coelho A, Wolf-Johnston AS, Shinde S, Cruz CD, Cruz F, Avelino A, Birder LA (2015) Urinary bladder inflammation induces changes in urothelial nerve growth factor and TRPV1 channels. Br J Pharmacol 172:1691–1699
Collins VM, Daly DM, Liaskos M, McKay NG, Sellers D, Chapple C, Grundy D (2013) OnabotulinumtoxinA significantly attenuates bladder afferent nerve firing and inhibits ATP release from the urothelium. BJU Int 112:1018–1026
d’Emmanuele di Villa Bianca R, Mitidieri E, Fusco F, Russo A, Pagliara V, Tramontano T, Donnarumma E, Mirone V, Cirino G, Russo G, Sorrentino R (2016) Urothelium muscarinic activation phosphorylates CBSSer227 via cGMP/PKG pathway causing human bladder relaxation through H2S production. Sci Rep 6:31491
Daher A, de Boer WI, Le Frere-Belda MA, Kheuang L, Abbou CC, Radvanyi F, Jaurand MC, Thiery JP, Diez de Medina SG, Chopin DK (2004) Growth, differentiation and senescence of normal human urothelium in an organ-like culture. Eur Urol 45:799–805
Daly DM, Nucchi L, Liaskos M, McKay NG, Chapple C, Grundy D (2014) Age-related changes in afferent pathways and urothelial function in the male mouse bladder. J Physiol Lond 592:537–549
Datta SN, Roosen A, Pullen A, Popat R, Rosenbaum TP, Elneil S, Dasgupta P, Fowler CJ, Apostolidis A (2010) Immunohistochemical expression of muscarinic receptors in the urothelium and suburothelium of neurogenic and idiopathic overactive human bladders, and changes with botulinum neurotoxin administration. J Urol 184:2578–2585
de Jongh R, Grol S, van Koeveringe GA, van Kerrebroeck PEV, de Vente J, Gillespie JI (2009) The localization of cyclo-oxygenase immuno-reactivity (COX I-IR) to the urothelium and to interstitial cells in the bladder wall. J Cell Mol Med 13:3069–3081
De Ridder D, Roskams T, van Poppel H, Baert L (1999) Nitric oxide synathase expression in neurogeneic bladder disease: a pilot study. Acta Neurol Belg 99:57–60
Deckmann K, Rafiq A, Erdmann C, Illig C, Durschnabel M, Wess J, Weidner W, Bschleipfer T, Kummer W (2018) Muscarinic receptors 2 and 5 regulate bitter response of urethral brush cells via negative feedback. The FASEB Journal in press: fj.201700582R
Downie JW, Karmazyn M (1984) Mechanical trauma to bladder epithelium liberates prostanoids which modulate neurotransmission in rabbit detrusor muscle. J Pharmacol Exp Ther 230:445–449
Doyle C, Cristofaro V, Sack BS, Mahmood F, Sullivan MP, Adam RM (2018) The role of the mucosa in modulation of evoked responses in the spinal cord injured rat bladder. Neurourol Urodyn in press
Eika B, Levin RM, Monson FC, Murphy M, Longhurst PA (1993) 3H-Thymidine uptake by the rat urinary bladder after induction of diabetes mellitus. J Urol 150:1316–1320
Eryildirim B, Tarhan F, Gül AE, Erbay E, Kuyumcuoglu U (2006) Immunohistochemical analysis of low-affinity nerve growth factor receptor in the human urinary bladder. Urol Int 77:76–80
Farr SE, Chess-Williams R, McDermott CM (2017) Gemcitabine: selective cytotoxicity, induction of inflammation and effects on urothelial function. Toxicol Appl Pharmacol 316:1–9
Fathian-Sabet B, Bloch W, Klotz T, Niggemann S, Jacobs G, Addicks K, Engelmann U (2001) Localization of constitutive nitric oxide synthase isoforms and the nitric oxide target enzyme soluble guanylyl cyclase in the human bladder. J Urol 165:1724–1729
Ferguson DR, Kennedy I, Burton TJ (1997) ATP is released from rabbit urinary bladder epithelial cells by hydrostatic pressure changes–possible sensory mechanism? J Physiol 505:503–511
Folasire OS, Chess-Williams R, Sellers DJ (2017) Inhibitory effect of the urothelium/lamina propria on female porcine urethral contractility & effect of age. Clin Exp Pharmacol Physiol 44:954–960
Forner S, Andrade EL, Martini AC, Bento AF, Medeiros R, Koepp J, Calixto JB (2012) Effects of kinin B1 and B2 receptor antagonists on overactive urinary bladder syndrome induced by spinal cord injury in rats. Br J Pharmacol 167:1737–1752
Fovaeus M, Fujiwara M, Högestätt ED, Persson K, Andersson KE (1999) A non-nitrergic smooth muscle relaxant factor released from rat urinary bladder by muscarinic receptor stimulation. J Urol 161:649–653
Frazier EP, Mathy MJ, Peters SLM, Michel MC (2005) Does cyclic AMP mediate rat urinary bladder relaxation by isoproterenol? J Pharmacol Exp Ther 313:260–267
Fry CH, Vahabi B (2016) The role of the mucosa in normal and abnormal bladder function. Basic Clin Pharmacol Toxicol 119(Suppl. 3):57–62
Fusco F, d’Emmanuele di Villa Bianca R, Mitidieri E, Cirino G, Sorrentino R, Mirone V (2012) Sildenafil effect on the human bladder involves the L-cysteine/hydrogen sulfide pathway: a novel mechanism of action of phosphodiesterase type 5 inhibitors. Eur Urol 62:1174–1180
Garcia-Pascual A, Costa G, Garcia-Sacristan A, Andersson KE (1991) Relaxation of sheep urethral muscle induced by electrical stimulation of nerves: involvement of nitric oxide. Acta Physiol Scand 141:531–539
Giglio D, Ryberg AT, To K, Delbro DS, Tobin G (2005) Altered muscarinic receptor subtype expression and functional responses in cyclophosphamide induced cystitis in rats. Autonomic Neuroscience: Basic and Clinical 122:9–20
Gillespie JI, Drake MJ (2004) The acctions of sodium nitroprusside and the phosphodiesterase inhibitor dipyridamole on phasic activity in the isolated guinea pig bladder. BJU Int 93:851–858
Gillespie JI, Markerink-van Ittersum M, De Vente J (2004) cGMP-generating cells in the bladder wall: identification of distinct networks of interstitial cells. BJU Int 94:1114–1124
Gillespie JI, Markerink-van Ittersum M, de Vente J (2005) Expression of neuronal nitric oxide synthase (nNOS) and nitric-oxide-induced changes in cGMP in the urothelial layer of the guinea pig bladder. Cell Tissue Res 321:341–351
Gillespie JI, Markerink-van Ittersum M, De Vente J (2006) Endogenous nitric oxide/cGMP signalling in the guinea pig bladder: evidence for distinct populations of sub-urothelial interstitial cells. Cell Tissue Res 325:325–332
Girard B, Cheppudira B, Malley S, Schutz K, May V, Vizzard M (2011) Increased expression of interleukin-6 family members and receptors in urinary bladder with cyclophosphamide-induced bladder inflammation in female rats. Front Neurosci 5
Girard BM, Malley SE, Braas KM, May V, Vizzard MA (2010) PACAP/VIP and receptor characterization in micturition pathways in mice with overexpression of NGF in urothelium. J Mol Neurosci 42:378–389
Girard BM, Tompkins JD, Parsons RL, May V, Vizzard MA (2012) Effects of CYP-induced cystitis on PACAP/VIP and receptor expression in micturition pathways and bladder function in mice with overexpression of NGF in urothelium. J Mol Neurosci 48:730–743
Girard BM, Wolf-Johnston A, Braas KM, Birder LA, May V, Vizzard MA (2008) PACAP-mediated ATP release from rat urothelium and regulation of PACAP/VIP and receptor mRNA in micturition pathways after cyclophosphamide (CYP)-induced cystitis. J Mol Neurosci 36:310–320
Goepel M, Wittmann A, Rübben H, Michel MC (1997) Comparison of adrenoceptor subtype expression in porcine and human bladder and prostate. Urol Res 25:199–206
Grol S, Essers PBM, van Koeveringe GA, Martinez-Martinez P, de Vente J, Gillespie JI (2009) M3 muscarinic receptor expression on suburothelial interstitial cells. BJU Int 104:398–405
Guan NN, Nilsson KF, Wiklund PN, Gustafsson LE (2014) Release and inhibitory effects of prostaglandin D2 in guinea pig urinary bladder and the role of urothelium. Biochim Biophys Acta Gen Subj 1840:3443–3451
Ha US, Park EY, Kim JC (2011) Effect of botulinum toxin on expression of nerve growth factor and transient receptor potential vanilloid 1 in urothelium and detrusor muscle of rats with bladder outlet obstruction-induced detrusor overactivity. Urology 78:721.e721–721.e726
Haefliger JA, Tissieres P, Tawadros T, Formenton A, Beny JL, Nicod P, Frey P, Meda P (2002) Connexins 43 and 26 are differentially increased after rat bladder outlet obstruction. Exp Cell Res 274:216–225
Hanna-Mitchell AT, Beckel JM, Barbadora S, Kanai AJ, de Groat WC, Birder LA (2007) Non-neuronal acetylcholine and urinary bladder urothelium. Life Sci 80:2298–2302
Hanna-Mitchell AT, Ruiz GW, Daneshgari F, Liu G, Apodaca G, Birder LA (2013) Impact of diabetes mellitus on bladder uroepithelial cells. Am J Phys 304:R84–R93
Hanna-Mitchell AT, Wolf-Johnston AS, Barrick SR, Kanai AJ, Chancellor MB, De Groat WC, Birder LA (2015) Effect of botulinum toxin A on urothelial-release of ATP and expression of SNARE targets within the urothelium. Neurourol Urodyn 34:79–84
Harmon EB, Porter JM, Porter JE (2005) ß-Adrenergic receptor activation in immortalized human urothelial cells stimulates inflammatory responses by PKD-independent mechanisms. Cell Commun Signal 3:10
Harvey RA, Skennerton DE, Newgreen D, Fry CH (2002) The contractile potency of adenosine triphosphate and ecto-adenosine triphosphatase activity in guinea pig detrusor and detrusor from patients with a stable, unstable or obstructed bladder. J Urol 168:1235–1239
Hawthorn MH, Chapple CR, Cock M, Chess-Williams R (2000) Urothelium-derived inhibitory factor(s) influences on detrusor muscle contractility in vitro. Br J Pharmacol 129:416–419
Hernández M, Barahona MV, Recio P, Navarro-Dorado J, Bustamante S, Benedito S, García-Sacristán A, Prieto D, Orensanz LM (2008) Role of neuronal voltage-gated K+ channels in the modulation of the nitrergic neurotransmission of the pig urinary bladder neck. Br J Pharmacol 153:1251–1258
Ikeda Y, Fry C, Hayashi F, Stolz D, Griffiths D, Kanai A (2007) Role of gap junctions in spontaneous activity of the rat bladder. Am J Physiol-Renal Physiol 293:F1018–F1025
Ishihama H, Momota Y, Yanase H, Wang X, De Groat WC, Kawatani M (2006) Activation of α1D adrenergic receptors in the rat urothelium facilitates the micturition reflex. J Urol 175:358–364
Janssen DAW, Hoenderop JG, Jansen KCFJ, Kemp AW, Heesakkers JPFA, Schalken JA (2011) The mechanoreceptor TRPV4 is localized in adherence junctions of the human bladder urothelium: a morphological study. J Urol 186:1121–1127
Jeremy JY, Tsang V, Mikhailidis DP, Rogers H, Morgan RJ, Dandona P (1987) Eicosanoid synthesis by human urinary bladder mucosa: pathological implications. Br J Urol 59:36–39
Johansson R, Pandita RK, Poljakovic M, Garcia-Pascual A, de Vente J, Persson K (2002a) Activity and expression of nitric oxide synthase in the hypertrophied rat bladder and the effect of nitric oxide on bladder smooth muscle growth. J Urol 168:2689–2694
Johansson RK, Poljakovic M, Andersson KE, Persson K (2002b) Expression of nitric oxide synthase in bladder smooth muscle cells: regulation by cytokines and L-arginine. J Urol 168:2280–2285
Jositsch G, Papadakis T, Haberberger RV, Wolff M, Wess J, Kummer W (2009) Suitability of muscarinic acetylcholine receptor antibodies for immunohistochemistry evaluated on tissue sections of receptor gene-deficient mice. Naunyn Schmiedeberg's Arch Pharmacol 379:389–395
Kanai A, Roppolo J, Ikeda Y, Zabbarova I, Tai C, Birder L, Griffiths D, Wd G, Fry C (2007) Origin of spontaneous activity in neonatal and adult rat bladders and its enhancement by stretch and muscarinic agonists. Am J Physiol-Renal Physiol 292:F1065–F1072
Kang S-H, Chess-Williams R, Anoopkumar-Dukie S, McDermott C (2013) Induction of inflammatory cytokines and alteration of urothelial ATP, acetylcholine and prostaglandin E2 release by doxorubicin. Eur J Pharmacol 700:102–109
Kang SH, Chess-Williams R, Anoopkumar-Dukie S, McDermott C (2015) Recovery of urothelial mediated release but prolonged elevations in interleukin-8 and nitric oxide section following mitomycin C treatment. Naunyn Schmiedeberg's Arch Pharmacol 388:781–791
Kedia GT, Neumayer E, Scheller F, Kuczyk MA, Uckert S (2009) In vitro effects of a novel class of nitric oxide donating compounds on isolated human urinary bladder. Georgian Med News 167:7–16
Krege S, Kinzig-Schppers M, Sörgel F, Baschek R, Michel MC, Rübben H (2004) Absorption of intravesically applied drugs: comparison of normal and ileal-augmented rabbit bladder. J Urol 172:2045–2050
Kullmann FA, Artim D, Beckel J, Barrick S, WCd G, Birder LA (2008a) Heterogeneity of muscarinic receptor-mediated Ca2+ responses in cultured urothelial cells from rat. Am J Physiol-Renal Physiol 294:F971–F981
Kullmann FA, Artim DE, Birder LA, de Groat WC (2008b) Activation of muscarinic receptors in rat bladder sensory pathways alters reflex bladder activity. J Neurosci 28:1977–1987
Kullmann FA, Downs TR, Artim DE, Limberg BJ, Shah M, Contract D, De Groat WC, Rosenbaum JS (2011) Urothelial beta-3 adrenergic receptors in the rat bladder. Neurourol Urodyn 30:144–150
Kumar V, Chapple C, Chess-Williams R (2004) Characteristics of adenosine triphosphate [corrected] release from porcine and human normal bladder. J Urol 172:744–747
Kumar V, Chapple CR, Rosario D, Tophill PR, Chess-Williams R (2010) In vitro release of adenosine triphosphate from the urothelium of human bladders with detrusor overactivity, both neurogenic and idiopathic. Eur Urol 57:1087–1092
Kumar V, Chapple CR, Surprenant AM, Chess-Williams R (2007) Enhanced adenosine triphosphate release from the urothelium of patients with painful bladder syndrome: a possible pathophysiological explanation. J Urol 178:1533–1536
Kurizaki Y, Ishizuka O, Imamura T, Ichino M, Ogawa T, Igawa Y, Nishizawa O, Andersson KE (2011) Relation between expression of α1-adrenoceptor mRNAs in bladder mucosa and urodynamic findings in men with lower urinary tract symptoms. Scand J Urol Nephrol 45:15–19
Kurizaki Y, Ishizuka O, Imamura T, Ishikawa M, Ichino M, Ogawa T, Nishizawa O, Andersson KE (2013) Relationship between expression of ß3-adrenoceptor mRNA in bladder mucosa and urodynamic findings in men with lower urinary tract symptoms. Neurourol Urodyn 32:88–91
Kurzrock EA, Lieu DK, de Graffenried LA, Isseroff RR (2005) Rat urothelium: improved techniques for serial cultivation, expansion, freezing and reconstitution onto acellular matrix. J Urol 173:281–285
Lazzeri M, Vannucchi MG, Spinelli M, Bizzoco E, Beneforti P, Turini D, Faussone-Pellegrini MS (2005) Transient receptor potential vanilloid type 1 (TRPV1) expression changes from normal urothelium to transitional cell carcinoma of human bladder. Eur Urol 48:691–698
Lee HY, Bardini M, Burnstock G (2000) Distribution of P2X receptors in the urinary bladder and the ureter of the rat. J Urol 163:2002–2007
Levin RM, Wein AJ, Krasnopolsky L, Atta MA, Ghoniem GM (1995) Effect of mucosal removal on the response of the feline bladder to pharmacological stimulation. J Urol 153:1291–1294
Li M, Sun Y, Tomiya N, Hsu Y, Chai TC (2013) Elevated polyamines in urothelial cells from OAB subjects mediate oxotremorine-evoked rapid intracellular calcium rise and delayed acetylcholine release. Am J Physiol-Renal Physiol 305:F445–F450
Lin Z, Chen S, Ye C, Zhu S (2003) Nitric oxide synthase expression in human bladder cancer and its relation to angiogenesis. Urol Res 31:232–235
Lips KS, Wunsch J, Sarghooni S, Bschleipfer T, Schukowski K, Weidner W, Wessler I, Schwantes U, Koepsell H, Kummer W (2007) Acetylcholine and molecular components of its synthesis and release machinery in the urothelium. Eur Urol 51:1042–1053
Liu G, Daneshgari F (2006) Temporal diabetes- and diuresis-induced remodeling of the urinary bladder in the rat. Am J Physiol Regul Integr Comp Physiol 291:R837–R843
Lowe EM, Anand P, Terengh G, Williams-Chestnut RE, Sinicropi DV, Osborne JL (1997) Increased nerve growth factor levels in the urinary bladder of women with idiopathic sensory urgency and interstitial cystitis. Br J Urol 79:572–577
Maggi CA, Santicioli P, Parlani M, Astolfi M, Patacchini R, Meli A (1987) The presence of mucosa reduces the contractile response of the guinea-pig urinary bladder to substance P. J Pharm Pharmacol 39:653–655
Mansfield KJ, Chandran JJ, Vaux KJ, Millard RJ, Christopoulos A, Mitchelson FJ, Burcher E (2009) Comparison of receptor binding characteristics of commonly used muscarinic antagonists in human bladder detrusor and mucosa. J Pharmacol Exp Ther 328:893–899
Mansfield KJ, Hughes JR (2014a) Effect of inflammatory mediators on ATP release of human urothelial RT4 cells. Biomed Res Int 2014:6
Mansfield KJ, Hughes JR (2014b) P2Y receptor modulation of ATP release in the urothelium. Biomed Res Int 2014:8
Mansfield KJ, Liu L, Mitchelson FJ, Moore KH, Millard RJ, Burcher E (2005) Muscarinic receptor subtypes in human bladder detrusor and mucosa, studied by radioligand binding and quantitative competitive RT-PCR: changes in ageing. Br J Pharmacol 144:1089–1099
Masick JM, Levin RM, Hass MA (2001) The effect of partial outlet obstruction on prostaglandin generation in the rabbit urinary bladder. Prostaglandins Other Lipid Mediat 66:211–219
Mastrangelo D, Iselin CE (2007) Urothelium dependent inhibition of rat ureter contractile activity. J Urol 178:702–709
Masunaga K, Chapple CR, McKay NG, Yoshida M, Sellers DJ (2010) The ß3-adrenoceptor mediates the inhibitory effects of ß-adrenoceptor agonists via the urothelium in pig bladder dome. Neurourol Urodyn 29:1320–1325
Masunaga K, Yoshida M, Inadome A, Iwashita H, Miyamae K, Ueda S (2006) Prostaglandin E2 release from isolated bladder strips in rats with spinal cord injury. Int J Urol 13:271–276
McLatchie LM, Fry CH (2015) ATP release from freshly isolated guinea-pig bladder urothelial cells: a quantification and study of the mechanisms involved. BJU Int 115:987–993
McLatchie LM, Young JS, Fry CH (2014) Regulation of ACh release from guinea pig bladder urothelial cells: potential role in bladder filling sensations. Br J Pharmacol 171:3394–3403
Meng E, Young JS, Brading AF (2008) Spontaneous activity of mouse detrusor smooth muscle and the effects of the urothelium. Neurourol Urodyn 27:79–87
Meyer-Siegler KL, Vera PL (2004) Substance P induced release of macrophage migration inhibitor factor from rat bladder epithelium. J Urol 171:1698–1703
Michel MC, Seifert R (2015) Selectivity of pharmacological tools: implications for use in cell physiology. Am J Phys 308:C505–C520
Michel MC, Wieland T, Tsujimoto G (2009) How reliable are G-protein-coupled receptor antibodies? Naunyn Schmiedeberg's Arch Pharmacol 377:385–388
Miyamoto T, Mochizuki T, Nakagomi H, Kira S, Watanabe M, Takayama Y, Suzuki Y, Koizumi S, Takeda M, Tominaga M (2014) Functional role for Piezo1 in stretch-evoked Ca2+ influx and ATP release in urothelial cell cultures. J Biol Chem 289:16565–16575
Moon A (2002) Influence of nitric oxide signalling pathways on pre-contracted human detrusor smooth muscle in vitro. BJU Int 89:942–949
Munoz A, Gangitano DA, Smith CP, Boone TB, Somogyi GT (2010) Removal of urothelium affects bladder contractility and release of ATP but not release of NO in rat urinary bladder. BMC Urol 10:10
Munoz A, Smith CP, Boone TB, Somogyi GT (2011) Overactive and underactive bladder dysfunction is reflected by alterations in urothelial ATP and NO release. Neurochem Int 58:295–300
Murakami S, Chapple CR, Akino H, Sellers DJ, Chess-Williams R (2007) The role of the urothelium in mediating bladder responses to isoprenaline. BJU Int 99:669–673
Murray E, Malley SE, Qiao LY, Hu VY, Vizzard MA (2004) Cyclophosphamide induced cystitis alters neurotrophin and receptor tyrosine kinase expression in pelvic ganglia and bladder. J Urol 172:2434–2439
Nakahara T, Kubota Y, Mitani A, Maruko T, Sakamoto K, Ishii K (2003) Protease-activated receptor-2-mediated contraction in the rat urinary bladder: the role of urinary bladder mucosa. Naunyn Schmiedeberg's Arch Pharmacol 367:211–213
Negoro H, Urban-Maldonado M, Liou LS, Spray DC, Thi MM, Suadicani SO (2014) Pannexin 1 channels play essential roles in urothelial mechanotransduction and intercellular signaling. PLoS One 9:e106269
Nile CJ, De Vente J, Gillespie JI (2010) Stretch independent regulation of prostaglandin E2 production within the isolated guinea-pig lamina propria. BJU Int 105:540–548
Nile CJ, Gillespie JI (2012) Interactions between cholinergic and prostaglandin signaling elements in the urothelium: role for muscarinic type 2 receptors. Urology 79:240.e217–240.e223
Nilius B, Szallasi A (2014) Transient receptor potential channels as drug targets: from the science of basic research to the art of medicine. Pharmacol Rev 66:676–814
Ochodnicky P, Cruz CD, Yoshimura N, Michel MC (2011) Nerve growth factor in bladder dysfunction: contributing factor, biomarker and therapeutic target. Neurourol Urodyn 30:1227–1241
Ochodnicky P, Humphreys S, Eccles R, Poljakovic M, Wiklund P, Michel MC (2012) Expression profiling of G-protein-coupled receptors in human urothelium and related cell lines. BJU Int 110:e293–e300
Ochodnicky P, Michel-Reher MB, Butter JJ, Seth J, Panicker JN, Michel MC (2013) Bradykinin modulates spontaneous nerve growth factor production and stretch-induced ATP release in human urothelium. Pharmacol Res 70:147–154
Otsuka A, Kawasaki H, Matsumoto R, Shinbo H, Kurita Y, Iwashita T, Ozono S (2013) Expression of ß-adrenoceptor subtypes in urothelium, interstitial cells and detrusor of the human urinary bladder. Lower Urinary Tract Symptoms 5:173–180
Otsuka A, Shinbo H, Matsumoto R, Kurita Y, Ozono S (2008) Expression and functional role of ß-adrenoceptors in the human urinary bladder. Naunyn Schmiedeberg's Arch Pharmacol 377:473–481
Pak KJ, Ostrom RS, Matsui M, Ehlert FJ (2010) Impaired M3 and enhanced M2 muscarinic receptor contractile function in a streptozotocin model of mouse diabetic urinary bladder. Naunyn Schmiedeberg's Arch Pharmacol 381:441–454
Parsons CL (2011) The role of a leaky epithelium and potassium in the generation of bladder symptoms in interstitial cystitis/overactive bladder, urethral syndrome, prostatitis and gynaecological chronic pelvic pain. BJU Int 107:370–375
Pinna C, Caratozzolo O, Puglisi L (1992) A possible role of urinary bladder epithelium in bradykinin-induced contraction in diabetic rats. Eur J Pharmacol 214:143–148
Pinna C, Ventura S, Puglisi L, Burnstock G (1996) A pharmacological and histochemical study of hamster urethra and the role of urothelium. Br J Pharmacol 119:655–662
Pitre DA, Ma T, Wallace LJ, Bauer JA (2002) Time-dependent urinary bladder remodeling in the streptozotocin-induced diabetic rat model. Acta Diabetol 39:23–27
Propping S, Newe M, Lorenz K, Wirth MP, Ravens U (2015a) ß-Adrenoceptor-mediated relaxation of carbachol-pre-contracted mouse detrusor. Urol Int 95:92–98
Propping S, Roedel M, Wirth MP, Ravens U (2015b) Pharmacological modulation of mucosa-related impairment of ß-adrenoceptor-mediated relaxation in human detrusor. Urol Int 95:300–308
Propping S, Wuest M, Eichhorn B, Wirth MP, Kaumann AJ, Ravens U (2013) Mucosa of human detrusor impairs contraction and ß-adrenoceptor-mediated relaxation. BJU Int 112:1215–1222
Rahnama'i MS, van Koeveringe GA, Essers PB, de Wachter SGG, de Vente J, van Kerrebroeck PE, Gillespie JI (2010) Prostaglandin receptor EP1 and EP2 site in Guinea pig bladder urothelium and lamina propria. J Urol 183:1241–1247
Rahnama’i MS, Biallosterski BT, de Wachter SGG, Van Kerrebroeck PEV, van Koeveringe GA (2012) The distribution of the prostaglandin E receptor type 2 (EP2) in the detrusor of the Guinea pig. Prostaglandins Other Lipid Mediat 99:107–115
Ribeiro ASF, Fernandes VS, Martinez MP, Martinez-Saenz A, Pazos MR, Orensanz LM, Recio P, Bustamente S, Carballido J, Garcia-Sacristan A, Prieto D, Hernandez M (2014) Neuronal and non-neuronal bradykinin receptors are involved in the contraction and/or relaxation to the pig bladder neck smooth muscle. Neurourol Urodyn this issue
Roedel M, Ravens U, Kasper M, Wirth MP, Jepps TA, Propping S (2018) Contractile responses in intact and mucosa-denuded human ureter—a comparison with urinary bladder detrusor preparations. Naunyn Schmiedebergs Arch Pharmacol this issue
Romih R, Korošec P, de Mello W, Jezernik K (2005) Differentiation of epithelial cells in the urinary tract. Cell Tissue Res 320:259–268
Saban R, Keith IM, Nielsen KT, Christensen MM, Rhodes PR, Bruskewitz RC (1992) In vitro effects of bladder mucosa and an enkephalinase inhibitor on tachykinin induced contractility of the dog bladder. J Urol 147:750–755
Saban R, Undem BJ, Keith IM, Saban MR, Tengowski MW, Graziano FM, Bjorling DE (1994) Differential release of prostaglandins and leukotrienes by sensitized Guinea pig urinary bladder layers upon antigen challenge. J Urol 152:544–549
Sadananda P, Chess-Williams R, Burcher E (2008) Contractile properties of the pig bladder mucosa in response to neurokinin A: a role for myofibroblasts? Br J Pharmacol 153:1465–1473
Sadananda P, Kao FCL, Liu L, Mansfield KJ, Burcher E (2012) Acid and stretch, but not capsaicin, are effective stimuli for ATP release in the porcine bladder mucosa: are ASIC and TRPV1 receptors involved? Eur J Pharmacol 683:252–259
Sano T, Kobayashi T, Negoro H, Sengiku A, Hiratsuka T, Kamioka Y, Liou LS, Ogawa O, Matsuda M (2016) Intravital imaging of mouse urothelium reveals activation of extracellular signal-regulated kinase by stretch-induced intravesical release of ATP. Physiological Reports 4
Santarosa R, Colombel MC, Kaplan S, Monson F, Levin RM, Buttyan R (1994) Hyperplasia and apoptosis. Opposing cellular processes that regulate the response of the rabbit bladder to transient outlet obstruction. Laboratory Investigations 70:503–510
Santoso AGH, Sonarno IAB, Arsad NAB, Liang W (2010) The role of the urothelium and ATP in mediating detrusor smooth muscle contractility. Urology 76:1267.e1267–1267.e1212
Schnegelsberg B, Sun TT, Cain G, Bhattacharya A, Nunn PA, Ford APDW, Vizzard A, Cockayne DA (2010) Overexpression of NGF in mouse urothelium leads to neuronal hyperinnervation, pelvic sensitivity, and changes in urinary bladder function. Am J Phys 298:R534–R547
Silva I, Ferreirinha F, Magalhães-Cardoso MT, Silva-Ramos M, Correia-de-Sá P (2015) Activation of P2Y6 receptors facilitates nonneuronal adenosine triphosphate and acetylcholine release from urothelium with the lamina propria of men with bladder outlet obstruction. J Urol 194:1146–1154
Smith KJ, Chess-Williams R, McDermott C (2014) Luminal DMSO: effects on detrusor and urothelial/lamina propria function. Biomed Res Int 2014:8
Stenqvist J, Winder M, Carlsson T, Aronsson P, Tobin G (2017) Urothelial acetylcholine involvement in ATP-induced contractile responses of the rat urinary bladder. Eur J Pharmacol 809:253–260
Sui G-P, Wu C, Roosen A, Ikeda Y, Kanai AJ, Fry CH (2008) Modulation of bladder myofibroblast activity: implications for bladder function. Am J Physiol-Renal Physiol 295:F688–F697
Sui G, Fry CH, Montgomery B, Roberts M, Wu R, Wu C (2014) Purinergic and muscarinic modulation of ATP release from the urothelium and its paracrine actions. Am J Physiol-Renal Physiol 306:F286–F298
Sun Y, Chai TC (2006) Augmented extracellular ATP signaling in bladder urothelial cells from patients with interstitial cystitis. Am J Phys Cell Phys 290:C27–C34
Sun Y, Keay S, Lehrfeld TJ, Chai TC (2009) Changes in adenosine triphosphate-stimulated ATP release suggest association between cytokine and purinergic signaling in bladder urothelial cells. Urology 74:1163–1168
Tanaka I, Nagase K, Tanase K, Aoki Y, Akino H, Yokoyama O (2011) Modulation of stretch evoked adenosine triphosphate release from bladder epithelium by prostaglandin E2. J Urol 185:341–346
Templeman L, Chapple CR, Chess-Williams R (2002) Urothelium derived inhibitory factor and cross-talk among receptors in the trigone of the bladder of the pig. J Urol 167:742–745
Theobald RJ (2003) Differing effects of NG-monomethyl L-arginine and 7-nitroindazole on detrusor activity. Neurourol Urodyn 22:62–69
Thorneloe KS, Knorn AM, Doetsch PE, Lashinger ESR, Liu AX, Bond CT, Adelman JP, Nelson MT (2008) Small-conductance, Ca2+-activated K+ channel 2 is the key functional component of SK channels in mouse urinary bladder. Am J Phys 294:R1737–R1743
Timóteo MA, Carneiro I, Silva I, Noronha-Matos JB, Ferreirinha F, Silva-Ramos M, Correia-de-Sá P (2014) ATP released via pannexin-1 hemichannels mediates bladder overactivity triggered by urothelial P2Y6 receptors. Biochem Pharmacol 87:371–379
Tong Y-C, Cheng J-T, Hsu C-T (2006) Alterations of M2-muscarinic receptor protein and mRNA expression in the urothelium and muscle layer of the streptozotocin-induced diabetic rat urinary bladder. Neurosci Lett 406:216–221
Tong YC, Cheng JT (2007) Alterations of M 2.3-muscarinic receptor protein and mRNA expression in the bladder of the fructose fed obese rat. J Urol 178:1537–1542
Truschel ST, Wang E, Ruiz WG, Leung S-M, Rojas R, Lavelle J, Zeidel M, Stoffer D, Apodaca G (2002) Stretch-regulated exocytosis/endocytosis in bladder umbrella cells. Mol Biol Cell 13:830–846
Tyagi P, Thomas CA, Yoshimura N, Chancellor MB (2009a) Investigations into the presence of functional ß1, ß2 and ß3-adrenoceptors in urothelium and detrusor of human bladder. Int Braz J Urol 35:76–83
Tyagi S, Tyagi P, Van-le S, Yoshimura N, Chancellor MB, de Miguel F (2006) Qualitative and quantitative expression profile of muscarinic receptors in human urothelium and detrusor. J Urol 176:1673–1678
Tyagi V, Philips BJ, Su R, Smaldone MC, Erickson VL, Chancellor MB, Yoshimura N, Tyagi P (2009b) Differential expression of functional cannabinoid receptors in human bladder detrusor and urothelium. J Urol 181:1932–1938
Vaidyanathan S, Krishnan KR, Mansour P, Soni BM, McDicken I (1998) p75 nerve growth factor receptor in the vesical urothelium of patients with neuropatic bladder: an immunohistochemical study. Spinal Cord 36:541–547
Vlaskovska M, Kasakov L, Rong W, Bodin P, Bardini M, Cockayne DA, Ford APDW, Burnstock G (2001) P2X3 knock-out mice reveal a major sensory role for urothelially released ATP. J Neurosci 21:5670–5677
Walden PD, Durkin MM, Lepor H, Wetzel JM, Gluchowski C, Gustafson EL (1997) Localization of mRNA and receptor binding sites for the α1A-adrenoceptor subtype in the rat, monkey and human urinary bladder and prostate. J Urol 157:1032–1038
Wang ECY, Lee J-M, Ruiz WG, Balestreire EM, von Bodungen M, Barrick S, Cockayne DA, Birder LA, Apodaca G (2005) ATP and purinergic receptor–dependent membrane traffic in bladder umbrella cells. J Clin Invest 115:2412–2422
Weng TI, Wu HY, Lin PY, Liu SH (2009) Uropathogenic Escherichia coli-induced inflammation alters mouse urinary bladder contraction via an interleukin-6-activated inducible nitric oxide synthase-related pathway. Infect Immun 77:3312–3319
Wuest M, Kaden S, Hakenberg OW, Wirth MP, Ravens U (2005) Effect of rilmakalim on detrusor contraction in the presence and absence of urothelium. Naunyn Schmiedeberg's Arch Pharmacol 372:203–212
Xiao N, Huang Y, Kavran M, Elrashidy RA, Liu G (2015) Short-term diabetes- and diuresis-induced alterations of the bladder are mostly reversible in rats. Int J Urol 22:410–415
Yokoyama O, Tanaka I, Kusukawa N, Yamauchi H, Ito H, Aoki Y, Oyama N, Miwa Y, Akino H (2011) Antimuscarinics suppress adenosine triphosphate and prostaglandin E2 release from urothelium with potential improvement in detrusor overactivity in rats with cerebral infarction. J Urol 185:2392–2397
Yoshida M, Inadome A, Maeda Y, Satoji Y, Masunaga K, Sugiyama Y, Murakami S (2006) Non-neuronal cholinergic system in human bladder urothelium. Urology 67:425–430
Yoshida M, Masunaga K, Nagata T, Maeda Y, Miyamoto Y, Kudoh J, Homma Y (2009) Attenuation of non-neuronal adenosine triphosphate release from human bladder mucosa by antimuscarinic agents. LUTS 1:88–92
Yoshida M, Masunaga K, Satoji Y, Maeda Y, Nagata T, Inadome A (2008) Basic and clinical aspects of non-neuronal acetylcholine: expression of non-neuronal acetylcholine in urothelium and its clinical significance. J Pharmacol Sci 106:193–198
Yoshida M, Miyamae K, Iwashita H, Otani M, Inadome A (2004) Management of detrusor dysfunction in the elderly: changes in acetylcholine and adenosine triphosphate release during aging. Urology 63(Suppl. 1):17–23
Young JS, Matharu R, Carew MA, Fry CH (2012) Inhibition of stretching-evoked ATP release from bladder mucosa by anticholinergic agents. BJU Int 110:E397–E401
Zarghooni S, Wunsch J, Bodenbenner M, Brüggmann D, Grando SA, Schwantes U, Wess J, Kummer W, Lips KS (2007) Expression of muscarinic and nicotinic acetylcholine receptors in the mouse urothelium. Life Sci 80:2308–2313
Zhang QL, Qiao L-Y (2012) Regulation of IGF-1 but not TGF-β1 by NGF in the smooth muscle of the inflamed urinary bladder. Regul Pept 177:73–78
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Work in the authors’ labs is being or has been funded by the Australian National Health and Medical Research Council, Cancer Council Queensland, Australian Bladder Foundation and Deutsche Forschungsgemeinschaft (Mi 294/8-1).
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DS, RCW, and MCM conceived the outline of this review, retrieved and extracted the references, and contributed to write sections of the manuscript. All authors read, critically revised for content, and approved the manuscript.
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DS and RCW do not declare a conflict of interest. In the field of urology, MCM is a consultant to and shareholder of Velicept Therapeutics, a former employee (2011–2016) and present consultant of Boehringer Ingelheim, and a consultant of Apogepha and Dr. Wilmar Schwabe.
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Sellers, D., Chess-Williams, R. & Michel, M.C. Modulation of lower urinary tract smooth muscle contraction and relaxation by the urothelium. Naunyn-Schmiedeberg's Arch Pharmacol 391, 675–694 (2018). https://doi.org/10.1007/s00210-018-1510-8
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DOI: https://doi.org/10.1007/s00210-018-1510-8