Abstract
The endothelin system participates in a number of critical biologic pathways, including normal wound healing. In addition, emerging basic science, and animal and human data all suggest that endothelin-1 (EDN1, also known as ET-1) is a potentially important contributor in the pathobiology of fibrosing disorders, including those that affect the lung. For example, EDN1 drives fibroblast activation, proliferation, as well as differentiation into myofibroblasts — processes that lead to excessive collagen deposition. Patients with idiopathic pulmonary fibrosis (IPF) have increased levels of EDN1 in both their bronchoalveolar lavage fluid and lung tissue. Beyond this, rodent models suggest that endothelin receptor antagonists can limit bleomycin-induced lung fibrosis. This suggests a biologic rationale for the blockade of EDN1 to limit the evolution of lung fibrosis in humans. Initial results from a trial examining the efficacy of a dual endothelin receptor antagonist suggest that this approach may delay disease progression in a subset of patients with IPF.
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References
Ortega Mateo A, deArtinano AA. Highlights on endothelins: a review. Pharmacol Res 1997; 36: 339–51
Kedzierski RM, Yanagisawa M. Endothelin system: the double-edged sword in health and disease. Annu Rev Pharmacol Toxicol 2001; 41: 851–76
Teder P, Noble PW. A cytokine reborn? Endothelin-1 in pulmonary inflammation and fibrosis. Am J Respir Cell Mol Biol 2000; 23: 7–10
Baynash A, Hammer R, Richardson J, et al. Severe growth retardation and juvenile lethality in ET-2 knockout mice. Fifth International Conference on Endothelins; 1997 Sep 12–15; Kyoto
Matsumoto H, Suzuki N, Onda H, et al. Abundance of endothelin-3 in rat intestine, pituitary gland and brain. Biochem Biophys Res Commun 1989; 164: 74–80
Battistini B, Dussault P. Biosynthesis, distribution and metabolism of endothelins in the pulmonary system. Pulm Pharmacol Ther 1998; 11: 79–88
Ehrenreich H, Anderson RW, Fox CH, et al. Endothelins, peptides with potent vasoactive properties, are produced by human macrophages. J Exp Med 1990; 172: 1741–8
Giaid A, Michel RP, Stewart DJ, et al. Expression of endothelin-1 in lungs of patients with cryptogenic fibrosing alveolitis. Lancet 1993; 341: 1550–4
Sessa WC, Kaw S, Hecker M, et al. The biosynthesis of endothelin-1 by human polymorphonuclear leukocytes. Biochem Biophys Res Commun 1991; 174: 613–8
Harrison VJ, Corder R, Anggard EE, et al. Evidence for vesicles that transport endothelin-1 in bovine aortic endothelial cells. J Cardiovasc Pharmacol 1993; 22 Suppl. 8: S57–60
Wagner OF, Christ G, Wojta J, et al. Polar secretion of endothelin-1 by cultured endothelial cells. J Biol Chem 1992; 267: 16066–8
Arai H, Hori S, Aramori I, et al. Cloning and expression of a cDNA encoding an endothelin receptor. Nature 1990; 348: 730–2
Sakurai T, Yanagisawa M, Takuwa Y, et al. Cloning of a cDNA encoding a non-isopeptide-selective subtype of the endothelin receptor. Nature 1990; 348: 732–5
Katwa LC, Guarda E, Weber KT. Endothelin receptors in cultured adult rat cardiac fibroblasts. Cardiovasc Res 1993; 27: 2125–9
Masaki T, Miwa S, Sawamura T, et al. Subcellular mechanisms of endothelin action in vascular system. Eur J Pharmacol 1999; 375: 133–8
Ergul A, Glassberg MK, Wanner A, et al. Characterization of endothelin receptor subtypes on airway smooth muscle cells. Exp Lung Res 1995; 21: 453–68
Goldie RG, Henry PJ, Knott PG, et al. Endothelin-1 receptor density, distribution, and function in human isolated asthmatic airways. Am J Respir Crit Care Med 1995; 152: 1653–8
Berti F, Rossoni G, Della Bella D, et al. Nitric oxide and prostacyclin influence coronary vasomotor tone in perfused rabbit heart and modulate endothelin-1 activity. J Cardiovasc Pharmacol 1993; 22: 321–6
Filep JG, Bodolay E, Sipka S, et al. Plasma endothelin correlates with antiendothelial antibodies in patients with mixed connective tissue disease. Circulation 1995; 92: 2969–74
Wenzel RR, Fleisch M, Shaw S, et al. Hemodynamic and coronary effects of the endothelin antagonist bosentan in patients with coronary artery disease. Circulation 1998; 98: 2235–40
Dupuis J, Stewart DJ, Cernacek P, et al. Human pulmonary circulation is an important site for both clearance and production of endothelin-1. Circulation 1996; 94: 1578–84
Razzaque MS, Taguchi T. Pulmonary fibrosis: cellular and molecular events. Pathol Int 2003; 53: 133–45
Clark R. Wound repair; overview and general considerations: the molecular and cellular biology of wound repair. London: Plenum Press, 1996: 3–50
Moulin V. Growth factors in skin wound healing. Eur J Cell Biol 1995; 68: 1–7
Greenhalgh DG. The role of growth factors in wound healing. J Trauma 1996; 41: 159–67
Badylak SF. The extracellular matrix as a scaffold for tissue reconstruction. Semin Cell Dev Biol 2002; 13: 377–83
Shi-Wen X, Chen Y, Denton CP, et al. Endothelin-1 promotes myofibroblast induction through the ETA receptor via a rac/phosphoinositide 3-kinase/Akt-dependent pathway and is essential for the enhanced contractile phenotype of fibrotic fibroblasts. Mol Biol Cell 2004; 15: 2707–19
Tomasek JJ, Gabbiani G, Hinz B, et al. Myofibroblasts and mechano-regulation of connective tissue remodelling. Nat Rev Mol Cell Biol 2002; 3: 349–63
Desmouliere A. Factors influencing myofibroblast differentiation during wound healing and fibrosis. Cell Biol Int 1995; 19: 471–6
Hafstrom I, Ringertz B, Lundeberg T, et al. The effect of endothelin, neuropeptide Y, calcitonin gene-related peptide and substance P on neutrophil functions. Acta Physiol Scand 1993; 148: 341–6
McMillen MA, Sumpio BE. Endothelins: polyfunctional cytokines. J Am Coll Surg 1995; 180: 621–37
Shahar I, Fireman E, Topilsky M, et al. Effect of endothelin-1 on alpha-smooth muscle actin expression and on alveolar fibroblasts proliferation in interstitial lung diseases. Int J Immunopharmacol 1999; 21: 759–75
Peacock AJ, Dawes KE, Shock A, et al. Endothelin-1 and endothelin-3 induce chemotaxis and replication of pulmonary artery fibroblasts. Am J Respir Cell Mol Biol 1992; 7: 492–9
Cambrey AD, Harrison NK, Dawes KE, et al. Increased levels of endothelin-1 in bronchoalveolar lavage fluid from patients with systemic sclerosis contribute to fibroblast mitogenic activity in vitro. Am J Respir Cell Mol Biol 1994; 11: 439–45
Dawes KE, Cambrey AD, Campa JS, et al. Changes in collagen metabolism in response to endothelin-1: evidence for fibroblast heterogeneity. Int J Biochem Cell Biol 1996; 28: 229–38
Kahaleh MB. Endothelin, an endothelial-dependent vasoconstrictor in scleroderma: enhanced production and profibrotic action. Arthritis Rheum 1991; 34: 978–83
Schmitt-Graff A, Desmouliere A, Gabbiani G. Heterogeneity of myofibroblast phenotypic features: an example of fibroblastic cell plasticity. Virchows Arch 1994; 425: 3–24
Kulasekaren P, Scavone CA, Rogers DS, et al. Endothelin-1 and TGF-β1 independently induce fibroblast resistance to apoptosis via AKT activation. Am J Respir Cell Mol Biol 2009; 41: 484–93
Rodriguez-Pascual F, Redondo-Horcajo M, Lamas S. Functional cooperation between Smad proteins and activator protein-1 regulates transforming growth factor-beta-mediated induction of endothelin-1 expression. Circ Res 2003; 92: 1288–95
Hocher B, Schwarz A, Fagan KA, et al. Pulmonary fibrosis and chronic lung inflammation in ET-1 transgenic mice. Am J Respir Cell Mol Biol 2000; 23: 19–26
Park SH, Saleh D, Giaid A, et al. Increased endothelin-1 in bleomycin-induced pulmonary fibrosis and the effect of an endothelin receptor antagonist. Am J Respir Crit Care Med 1997; 156: 600–8
Mutsaers SE, Marshall RP, Goldsack NR, et al. Effect of endothelin receptor antagonists (BQ-485, Ro 47-0203) on collagen deposition during the development of bleomycin-induced pulmonary fibrosis in rats. Pulm Pharmacol Ther 1998; 11: 221–5
Selman M, King TE, Pardo A. Idiopathic pulmonary fibrosis: prevailing and evolving hypotheses about its pathogenesis and implications for therapy. Ann Intern Med 2001; 134: 136–51
Selman M, Pardo A. The epithelial/fibroblastic pathway in the pathogenesis of idiopathic pulmonary fibrosis. Am J Respir Cell Mol Biol 2003; 29: S93–7
Clozel M, Salloukh H. Role of endothelin in fibrosis and anti-fibrotic potential of bosentan. Ann Med 2005; 37: 2–12
Vancheeswaran R, Azam A, Black C, et al. Localization of endothelin-1 and its binding sites in scleroderma skin. J Rheumatol 1994; 21: 1268–76
Abraham DJ, Vancheeswaran R, Dashwood MR, et al. Increased levels of endothelin-1 and differential endothelin type A and B receptor expression in scleroderma-associated fibrotic lung disease. Am J Pathol 1997; 151: 831–41
Carpagnano GE, Kharitonov SA, Wells AU, et al. Increased vitronectin and endothelin-1 in the breath condensate of patients with fibrosing lung disease. Respiration 2003; 70: 154–60
Giaid A, Polak JM, Gaitonde V, et al. Distribution of endothelin-like immunoreactivity and mRNA in the developing and adult human lung. Am J Respir Cell Mol Biol 1991; 4: 50–8
Saleh D, Furukawa K, Tsao MS, et al. Elevated expression of endothelin-1 and endothelin-converting enzyme-1 in idiopathic pulmonary fibrosis: possible involvement of proinflammatory cytokines. Am J Respir Cell Mol Biol 1997; 16: 187–93
Uguccioni M, Pulsatelli L, Grigolo B, et al. Endothelin-1 in idiopathic pulmonary fibrosis. J Clin Pathol 1995; 48: 330–4
Seibold JR, Black CM, Denton CP, et al. Bosentan versus placebo in interstitial lung disease secondary to systemic sclerosis: the BUILD 2 study. Proc Am Thor Soc 2006; 3: A243
King Jr TE, Behr J, Brown KK, et al. BUILD-1: a randomized placebo-controlled trial of bosentan in idiopathic pulmonary fibrosis. Am J Respir Crit Care Med 2008; 177: 75–81
Acknowledgments
Dr Swigris has served as a paid consultant for Actelion Pharmaceuticals, Inc., and is a site Principal Investigator for a trial of bosentan in idiopathic pulmonary fibrosis. Dr Brown has served as a consultant and Protocol Steering Committee member for both Actelion Pharmaceuticals and Gilead Sciences, Inc.
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Swigris, J.J., Brown, K.K. The Role of Endothelin-1 in the Pathogenesis of Idiopathic Pulmonary Fibrosis. BioDrugs 24, 49–54 (2010). https://doi.org/10.2165/11319550-000000000-00000
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DOI: https://doi.org/10.2165/11319550-000000000-00000