Discovery of new risk loci for IgA nephropathy implicates genes involved in immunity against intestinal pathogens

We performed a genome-wide association study (GWAS) of IgA nephropathy (IgAN), the most common form of glomerulonephritis, with discovery and follow-up in 20,612 individuals of European and East Asian ancestry. We identified six novel genome-wide significant associations, four in ITGAM-ITGAX, VAV3 a...

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Detalles Bibliográficos
Autores principales: Kiryluk, Krzysztof, Li, Yifu, Scolari, Francesco, Sanna-Cherchi, Simone, Choi, Murim, Verbitsky, Miguel, Fasel, David, Lata, Sneh, Prakash, Sindhuri, Shapiro, Samantha, Fischman, Clara, Snyder, Holly J., Appel, Gerald, Izzi, Claudia, Viola, Battista Fabio, Dallera, Nadia, Vecchio, Lucia Del, Barlassina, Cristina, Salvi, Erika, Bertinetto, Francesca Eleonora, Amoroso, Antonio, Savoldi, Silvana, Rocchietti, Marcella, Amore, Alessandro, Peruzzi, Licia, Coppo, Rosanna, Salvadori, Maurizio, Ravani, Pietro, Magistroni, Riccardo, Ghiggeri, Gian Marco, Caridi, Gianluca, Bodria, Monica, Lugani, Francesca, Allegri, Landino, Delsante, Marco, Maiorana, Mariarosa, Magnano, Andrea, Frasca, Giovanni, Boer, Emanuela, Boscutti, Giuliano, Ponticelli, Claudio, Mignani, Renzo, Marcantoni, Carmelita, Di Landro, Domenico, Santoro, Domenico, Pani, Antonello, Polci, Rosaria, Feriozzi, Sandro, Chicca, Silvana, Galliani, Marco, Gigante, Maddalena, Gesualdo, Loreto, Zamboli, Pasquale, Maixnerová, Dita, Tesar, Vladimir, Eitner, Frank, Rauen, Thomas, Floege, Jürgen, Kovacs, Tibor, Nagy, Judit, Mucha, Krzysztof, Pączek, Leszek, Zaniew, Marcin, Mizerska-Wasiak, Małgorzata, Roszkowska-Blaim, Maria, Pawlaczyk, Krzysztof, Gale, Daniel, Barratt, Jonathan, Thibaudin, Lise, Berthoux, Francois, Canaud, Guillaume, Boland, Anne, Metzger, Marie, Panzer, Ulf, Suzuki, Hitoshi, Goto, Shin, Narita, Ichiei, Caliskan, Yasar, Xie, Jingyuan, Hou, Ping, Chen, Nan, Zhang, Hong, Wyatt, Robert J., Novak, Jan, Julian, Bruce A., Feehally, John, Stengel, Benedicte, Cusi, Daniele, Lifton, Richard P., Gharavi, Ali G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213311/
https://www.ncbi.nlm.nih.gov/pubmed/25305756
http://dx.doi.org/10.1038/ng.3118
Descripción
Sumario:We performed a genome-wide association study (GWAS) of IgA nephropathy (IgAN), the most common form of glomerulonephritis, with discovery and follow-up in 20,612 individuals of European and East Asian ancestry. We identified six novel genome-wide significant associations, four in ITGAM-ITGAX, VAV3 and CARD9 and two new independent signals at HLA-DQB1 and DEFA. We replicated the nine previously reported signals, including known SNPs in the HLA-DQB1 and DEFA loci. The cumulative burden of risk alleles is strongly associated with age at disease onset. Most loci are either directly associated with risk of inflammatory bowel disease (IBD) or maintenance of the intestinal epithelial barrier and response to mucosal pathogens. The geo-spatial distribution of risk alleles is highly suggestive of multi-locus adaptation and the genetic risk correlates strongly with variation in local pathogens, particularly helminth diversity, suggesting a possible role for host-intestinal pathogen interactions in shaping the genetic landscape of IgAN.

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