title: A3 adenosine receptor: pharmacology and role in disease.
abstract: The study of the A(3) adenosine receptor (A(3)AR) represents a rapidly growing and intense area of research in the adenosine field. The present chapter will provide an overview of the expression patterns, molecular pharmacology and functional role of this A(3)AR subtype under pathophysiological conditions. Through studies utilizing selective A(3)AR agonists and antagonists, or A(3)AR knockout mice, it is now clear that this receptor plays a critical role in the modulation of ischemic diseases as well as in inflammatory and autoimmune pathologies. Therefore, the potential therapeutic use of agonists and antagonists will also be described. The discussion will principally address the use of such compounds in the treatment of brain and heart ischemia, asthma, sepsis and glaucoma. The final part concentrates on the molecular basis of A(3)ARs in autoimmune diseases such as rheumatoid arthritis, and includes a description of clinical trials with the selective agonist CF101. Based on this chapter, it is evident that continued research to discover agonists and antagonists for the A(3)AR subtype is warranted.
authors.affiliation: Faculty of Medicine, University of Ferrara, Department of Clinical and Experimental Medicine, Pharmacology Unit, 44100 Ferrara, Italy. bpa@dns.unife.it
authors.forename: P A
authors.initials: PA
authors.lastname: Borea
authors.forename: S
authors.initials: S
authors.lastname: Gessi
authors.forename: S
authors.initials: S
authors.lastname: Bar-Yehuda
authors.forename: P
authors.initials: P
authors.lastname: Fishman
mesh_terms: D000818:Animals; D001327:Autoimmune Diseases / Q000209:etiology; D002545:Brain Ischemia / Q000209:etiology; D006801:Humans; D007249:Inflammation / Q000209:etiology; D017202:Myocardial Ischemia / Q000209:etiology; D043684:Receptor, Adenosine A3 / Q000187:drug effects / Q000235:genetics / Q000502:physiology*; D015398:Signal Transduction
chemical_list: D043684:Receptor, Adenosine A3