Adrenomedullin and Receptor for Urokinase Plasminogen Activator are involved in Hereditary Angioedema attacks: a transcriptomic study Giuseppe Castellano*1, Chiara Divella*1, Fabio Sallustio*1, Vincenzo Montinaro1, Claudia Curci1, Andrea Zanichelli2, Erika Bonanni2, Chiara Suffritti2, Sonia Caccia2, Anna Gallone3, Francesco Paolo Schena4, Loreto Gesualdo MD1, Marco Cicardi2 (1) Nephrology Unit ; Department of Emergency and Organ Transplantation, University “Aldo Moro” Bari, Italy, and Center for Diagnosis and Treatment of Hereditary Angioedema. (2) Department of Biomedical and Clinical Sciences, Luigi Sacco Hospital, University of Milan, Milan, Italy. (3) Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Bari, 70124, Italy. (4) University of Bari and Fondazione Schena, Valenzano, Bari, Italy. Corresponding author: Giuseppe Castellano, M.D., PhD; Nephrology Unit ; Department of Emergency and Organ Transplantation, University “Aldo Moro” Bari, Italy, and Center for Diagnosis and Treatment of Hereditary Angioedema. Piazza G. Cesare,11 70124 Bari, Italy; Tel./Fax : 0039 080 5478878; Email:
[email protected] * Giuseppe Castellano and Chiara Divella and Fabio Sallustio equally contributed to the present study. Loreto Gesualdo, Francesco Paolo Schena and Marco Cicardi shared senior authorship Acknowledgments 1 Supported by The Telethon Foundation (Telethon Grant number: GGP08223 granted to GC, SC and MC). Disclosure of potential conflict of interest The rest of the authors declare that they have no relevant conflicts of interest. 2 Abstract Background: Hereditary Angioedema (HAE) due to C1-inhibitor deficiency is a lifelong illness characterized by recurrent acute attacks of localized skin or mucosal edema. An activation of the kallikrein/bradykinin pathway at endothelial cell level has a relevant pathogenetic role in acute HAE attacks.