Article (Scientific journals)
Glycosylation of immunoglobulin G is regulated by a large network of genes pleiotropic with inflammatory diseases.
Klarić, Lucija; Tsepilov, Yakov A.; Stanton, Chloe M. et al.
2020In Science Advances, 6 (8), p. 0301
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Keywords :
Algorithms; Alleles; Computational Biology/methods; Gene Expression Regulation; Genetic Loci; Genome-Wide Association Study; Glycosylation; Humans; Immunoglobulin G/immunology/metabolism; Inflammation/genetics/metabolism; Linkage Disequilibrium; Models, Genetic; Phenotype; Polymorphism, Single Nucleotide; Polysaccharides/metabolism
Abstract :
[en] Effector functions of immunoglobulin G (IgG) are regulated by the composition of a glycan moiety, thus affecting activity of the immune system. Aberrant glycosylation of IgG has been observed in many diseases, but little is understood about the underlying mechanisms. We performed a genome-wide association study of IgG N-glycosylation (N = 8090) and, using a data-driven network approach, suggested how associated loci form a functional network. We confirmed in vitro that knockdown of IKZF1 decreases the expression of fucosyltransferase FUT8, resulting in increased levels of fucosylated glycans, and suggest that RUNX1 and RUNX3, together with SMARCB1, regulate expression of glycosyltransferase MGAT3. We also show that variants affecting the expression of genes involved in the regulation of glycoenzymes colocalize with variants affecting risk for inflammatory diseases. This study provides new evidence that variation in key transcription factors coupled with regulatory variation in glycogenes modifies IgG glycosylation and has influence on inflammatory diseases.
Disciplines :
Gastroenterology & hepatology
Author, co-author :
Klarić, Lucija
Tsepilov, Yakov A.
Stanton, Chloe M.
Mangino, Massimo
Sikka, Timo Tõnis
Esko, Tõnu
Pakhomov, Eugene
Salo, Perttu
Deelen, Joris
McGurnaghan, Stuart J.
Keser, Toma
Vučković, Frano
Ugrina, Ivo
Krištić, Jasminka
Gudelj, Ivan
Štambuk, Jerko
Plomp, Rosina
Pučić-Baković, Maja
Pavić, Tamara
Vilaj, Marija
Trbojević-Akmačić, Irena
Drake, Camilla
Dobrinić, Paula
Mlinarec, Jelena
Jelušić, Barbara
Richmond, Anne
Timofeeva, Maria
Grishchenko, Alexander K.
Dmitrieva, Julia
Bermingham, Mairead L.
Sharapov, Sodbo Zh
Farrington, Susan M.
Theodoratou, Evropi
Uh, Hae-Won
Beekman, Marian
Slagboom, Eline P.
Louis, Edouard  ;  Université de Liège - ULiège > Département des sciences cliniques > Hépato-gastroentérologie
Georges, Michel  ;  Université de Liège - ULiège > Dpt. de gestion vétérinaire des Ressources Animales (DRA) > Génomique animale
Wuhrer, Manfred
Colhoun, Helen M.
Dunlop, Malcolm G.
Perola, Markus
Fischer, Krista
Polasek, Ozren
Campbell, Harry
Rudan, Igor
Wilson, James F.
Zoldoš, Vlatka
Vitart, Veronique
Spector, Tim
Aulchenko, Yurii S.
Lauc, Gordan
Hayward, Caroline
More authors (43 more) Less
Language :
English
Title :
Glycosylation of immunoglobulin G is regulated by a large network of genes pleiotropic with inflammatory diseases.
Publication date :
2020
Journal title :
Science Advances
eISSN :
2375-2548
Publisher :
American Association for the Advancement of Science (AAAS), Washington, United States - District of Columbia
Volume :
6
Issue :
8
Pages :
eaax0301
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).
Available on ORBi :
since 06 February 2021

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