Giant cell arteritis (GCA) is the most common form of vasculitis in individuals older than SO years in Western countries. To shed light onto the genetic background influencing susceptibility for GCA, we performed a genome-wide association screening in a well-powered study cohort. After imputation, 1,844,133 genetic variants were analyzed in 2,134 case subjects and 9,125 unaffected individuals from ten independent populations of European ancestry. Our data confirmed HLA class II as the strongest associated region (independent signals: rs9268905, p = 1.94 x 10(-54), per-allele OR = 1.79; and rs9275592, p = 1.14 x 10(-4), OR = 2.08). Additionally, PLG and P4HA2 were identified as GCA risk genes at the genome-wide level of significance (rs4252134, p = 1.23 x 10(-10), OR = 1.28; and rs128738, p = 4.60 x 10(-9), OR = 1.32, respectively). Interestingly, we observed that the association peaks overlapped with different regulatory elements related to cell types and tissues involved in the pathophysiology of GCA. PLG and P4HA2 are involved in vascular remodelling and angiogenesis, suggesting a high relevance of these processes for the pathogenic mechanisms underlying this type of vasculitis.

A Genome-wide Association Study Identifies Risk Alleles in Plasminogen and P4HA2 Associated with Giant Cell Arteritis / Carmona, F. David; Vaglio, Augusto; Mackie, Sarah L.; Hernández-Rodríguez, José; Monach, Paul A.; Castañeda, Santos; Solans, Roser; Morado, Inmaculada C.; Narváez, Javier; Ramentol-Sintas, Marc; Pease, Colin T.; Dasgupta, Bhaskar; Watts, Richard; Khalidi, Nader; Langford, Carol A.; Ytterberg, Steven; Boiardi, Luigi; Beretta, Lorenzo; Govoni, Marcello; Emmi, Giacomo; Bonatti, Francesco; Cimmino, Marco A.; Witte, Torsten; Neumann, Thomas; Holle, Julia; Schönau, Verena; Sailler, Laurent; Papo, Thomas; Haroche, Julien; Mahr, Alfred; Mouthon, Luc; Molberg, Øyvind; Diamantopoulos, Andreas P.; Voskuyl, Alexandre; Brouwer, Elisabeth; Daikeler, Thomas; Berger, Christoph T.; Molloy, Eamonn S.; O'Neill, Lorraine; Blockmans, Daniel; Lie, Benedicte A.; Mclaren, Paul; Vyse, Timothy J.; Wijmenga, Cisca; Allanore, Yannick; Koeleman, Bobby P.C.; Callejas, José Luis; Caminal-Montero, Luis; Corbera-Bellalta, Marc; de Miguel, Eugenio; López, J. Bernardino Díaz; García-Villanueva, María Jesús; Gómez-Vaquero, Carmen; Guijarro-Rojas, Mercedes; Hidalgo-Conde, Ana; Marí-Alfonso, Begoña; Berriochoa, Agustín Martínez; Zapico, Aleida Martínez; Martínez-Taboada, Víctor Manuel; Miranda-Filloy, José A.; Monfort, Jordi; Ortego-Centeno, Norberto; Pérez-Conesa, Mercedes; Prieto-González, Sergio; Raya, Enrique; Fernández, Raquel Ríos; Sánchez-Martín, Julio; Sopeña, Bernardo; Tío, Laura; Unzurrunzaga, Ainhoa; Gough, Andrew; Isaacs, John D.; Green, Michael; McHugh, Neil; Hordon, Lesley; Kamath, Sanjeet; Nisar, Mohammed; Patel, Yusuf; Yee, Cee-Seng; Stevens, Robert; Nandi, Pradip; Nandagudi, Anupama; Jarrett, Stephen; Li, Charles; Levy, Sarah; Mollan, Susan; Salih, Abdel; Wordsworth, Oliver; Sanders, Emma; Roads, Esme; Gill, Anne; Carr, Lisa; Routledge, Christine; Culfear, Karen; Nugaliyadde, Asanka; James, Lynne; Spimpolo, Jenny; Kempa, Andy; Mackenzie, Felicity; Fong, Rosanna; Peters, Genessa; Rowbotham, Bridie; Masqood, Zahira; Hollywood, Jane; Gondo, Prisca; Wood, Rose; Martin, Steve; Rashid, Lubna Haroon; Robinson, James I.; Morgan, Mike; Sorensen, Louise; Taylor, John; Carette, Simon; Chung, Sharon; Cuthbertson, David; Forbess, Lindsy J.; Gewurz-Singer, Ora; Hoffman, Gary S.; Koening, Curry L.; Maksimowicz-McKinnon, Kathleen M.; McAlear, Carol A.; Moreland, Larry W.; Pagnoux, Christian; Seo, Philip; Specks, Ulrich; Spiera, Robert F.; Sreih, Antoine; Warrington, Kenneth J.; Weisman, Michael; Barrett, Jennifer H.; Cid, María C.; Salvarani, Carlo; Merkel, Peter A.; Morgan, Ann W.; González-Gay, Miguel A.; Martín, Javier. - In: AMERICAN JOURNAL OF HUMAN GENETICS. - ISSN 0002-9297. - ELETTRONICO. - 100:(2017), pp. 64-74. [10.1016/j.ajhg.2016.11.013]

A Genome-wide Association Study Identifies Risk Alleles in Plasminogen and P4HA2 Associated with Giant Cell Arteritis

Vaglio, Augusto;Emmi, Giacomo;
2017

Abstract

Giant cell arteritis (GCA) is the most common form of vasculitis in individuals older than SO years in Western countries. To shed light onto the genetic background influencing susceptibility for GCA, we performed a genome-wide association screening in a well-powered study cohort. After imputation, 1,844,133 genetic variants were analyzed in 2,134 case subjects and 9,125 unaffected individuals from ten independent populations of European ancestry. Our data confirmed HLA class II as the strongest associated region (independent signals: rs9268905, p = 1.94 x 10(-54), per-allele OR = 1.79; and rs9275592, p = 1.14 x 10(-4), OR = 2.08). Additionally, PLG and P4HA2 were identified as GCA risk genes at the genome-wide level of significance (rs4252134, p = 1.23 x 10(-10), OR = 1.28; and rs128738, p = 4.60 x 10(-9), OR = 1.32, respectively). Interestingly, we observed that the association peaks overlapped with different regulatory elements related to cell types and tissues involved in the pathophysiology of GCA. PLG and P4HA2 are involved in vascular remodelling and angiogenesis, suggesting a high relevance of these processes for the pathogenic mechanisms underlying this type of vasculitis.
2017
100
64
74
Carmona, F. David; Vaglio, Augusto; Mackie, Sarah L.; Hernández-Rodríguez, José; Monach, Paul A.; Castañeda, Santos; Solans, Roser; Morado, Inmaculada C.; Narváez, Javier; Ramentol-Sintas, Marc; Pease, Colin T.; Dasgupta, Bhaskar; Watts, Richard; Khalidi, Nader; Langford, Carol A.; Ytterberg, Steven; Boiardi, Luigi; Beretta, Lorenzo; Govoni, Marcello; Emmi, Giacomo; Bonatti, Francesco; Cimmino, Marco A.; Witte, Torsten; Neumann, Thomas; Holle, Julia; Schönau, Verena; Sailler, Laurent; Papo, Thomas; Haroche, Julien; Mahr, Alfred; Mouthon, Luc; Molberg, Øyvind; Diamantopoulos, Andreas P.; Voskuyl, Alexandre; Brouwer, Elisabeth; Daikeler, Thomas; Berger, Christoph T.; Molloy, Eamonn S.; O'Neill, Lorraine; Blockmans, Daniel; Lie, Benedicte A.; Mclaren, Paul; Vyse, Timothy J.; Wijmenga, Cisca; Allanore, Yannick; Koeleman, Bobby P.C.; Callejas, José Luis; Caminal-Montero, Luis; Corbera-Bellalta, Marc; de Miguel, Eugenio; López, J. Bernardino Díaz; García-Villanueva, María Jesús; Gómez-Vaquero, Carmen; Guijarro-Rojas, Mercedes; Hidalgo-Conde, Ana; Marí-Alfonso, Begoña; Berriochoa, Agustín Martínez; Zapico, Aleida Martínez; Martínez-Taboada, Víctor Manuel; Miranda-Filloy, José A.; Monfort, Jordi; Ortego-Centeno, Norberto; Pérez-Conesa, Mercedes; Prieto-González, Sergio; Raya, Enrique; Fernández, Raquel Ríos; Sánchez-Martín, Julio; Sopeña, Bernardo; Tío, Laura; Unzurrunzaga, Ainhoa; Gough, Andrew; Isaacs, John D.; Green, Michael; McHugh, Neil; Hordon, Lesley; Kamath, Sanjeet; Nisar, Mohammed; Patel, Yusuf; Yee, Cee-Seng; Stevens, Robert; Nandi, Pradip; Nandagudi, Anupama; Jarrett, Stephen; Li, Charles; Levy, Sarah; Mollan, Susan; Salih, Abdel; Wordsworth, Oliver; Sanders, Emma; Roads, Esme; Gill, Anne; Carr, Lisa; Routledge, Christine; Culfear, Karen; Nugaliyadde, Asanka; James, Lynne; Spimpolo, Jenny; Kempa, Andy; Mackenzie, Felicity; Fong, Rosanna; Peters, Genessa; Rowbotham, Bridie; Masqood, Zahira; Hollywood, Jane; Gondo, Prisca; Wood, Rose; Martin, Steve; Rashid, Lubna Haroon; Robinson, James I.; Morgan, Mike; Sorensen, Louise; Taylor, John; Carette, Simon; Chung, Sharon; Cuthbertson, David; Forbess, Lindsy J.; Gewurz-Singer, Ora; Hoffman, Gary S.; Koening, Curry L.; Maksimowicz-McKinnon, Kathleen M.; McAlear, Carol A.; Moreland, Larry W.; Pagnoux, Christian; Seo, Philip; Specks, Ulrich; Spiera, Robert F.; Sreih, Antoine; Warrington, Kenneth J.; Weisman, Michael; Barrett, Jennifer H.; Cid, María C.; Salvarani, Carlo; Merkel, Peter A.; Morgan, Ann W.; González-Gay, Miguel A.; Martín, Javier
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