Changes in N-glycans of IgG4 and its relationship with the existence of hypocomplementemia and individual organ involvement in patients with IgG4-related disease
Publication Date
April 19, 2018
Authors
Naoki Konno, Mitsuru Sugimoto, Tadayuki Takagi, Makiko Furuya, et al
Volume
13
Issue
4
Pages
e0196163
DOI
https://dx.plos.org/10.1371/journal.pone.0196163
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0196163
Scopus
85045878213
Mendeley
http://www.mendeley.com/research/changes-nglycans-igg4-relationship-existence-hypocomplementemia-individual-organ-involvement-patient
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Mendeley | Further Information

{"title"=>"Changes in N-glycans of IgG4 and its relationship with the existence of hypocomplementemia and individual organ involvement in patients with IgG4-related disease", "type"=>"journal", "authors"=>[{"first_name"=>"Naoki", "last_name"=>"Konno"}, {"first_name"=>"Mitsuru", "last_name"=>"Sugimoto"}, {"first_name"=>"Tadayuki", "last_name"=>"Takagi"}, {"first_name"=>"Makiko", "last_name"=>"Furuya"}, {"first_name"=>"Tomoyuki", "last_name"=>"Asano"}, {"first_name"=>"Shuzo", "last_name"=>"Sato"}, {"first_name"=>"Hiroko", "last_name"=>"Kobayashi"}, {"first_name"=>"Kiyoshi", "last_name"=>"Migita"}, {"first_name"=>"Yoshiaki", "last_name"=>"Miura"}, {"first_name"=>"Taichi", "last_name"=>"Aihara"}, {"first_name"=>"Atsushi", "last_name"=>"Komatsuda"}, {"first_name"=>"Hiromasa", "last_name"=>"Ohira"}, {"first_name"=>"Hiroshi", "last_name"=>"Watanabe"}], "year"=>2018, "source"=>"PLOS ONE", "identifiers"=>{"sgr"=>"85045878213", "doi"=>"10.1371/journal.pone.0196163", "pui"=>"621762366", "scopus"=>"2-s2.0-85045878213", "issn"=>"1932-6203"}, "id"=>"be13e7c5-6037-3132-abf1-76c3a9c8ef69", "abstract"=>"Background Although increased serum IgG4 level and tissue infiltration of IgG4-positive cells are key events in IgG4-related disease (IgG4RD), and nearly half of IgG4RD patients show hypocomplementemia, the role of IgG4 in the pathogenesis of IgG4RD remains unclear. Many reports show that altered IgG glycosylation, especially IgG with agalactosylated N-linked glycan (G0 N-glycan), have proinflammatory roles including complement activation, implicated in the pathogenesis of various inflammatory diseases. This study determined the concentration of N-linked glycans (N-glycan) released from serum IgG4 in IgG4RD patients and compared the difference of glycosylation changes to those in healthy controls. We also compared the concentration of each IgG4 glycoform between patients with and without hypocomplementemia and individual organ involvement (kidney, pancreas, lymph node) in IgG4RD. Methods We collected sera from 12 IgG4RD patients and 8 healthy controls. IgG4 was isolated from sera via Melon™ Gel IgG Spin Purification Kit followed by Capture Select IgG4 (Hu) Affinity Matrix. IgG4 N-glycans were analyzed by S-BIO GlycanMap® Xpress methodology. Results Significant increases of IgG4 G0 N-glycan and IgG4 fucosylated N-glycan (F1 N-glycan) concentrations were observed in IgG4RD compared with healthy controls. Although we observed decreased levels of IgG4 F0 glycan in IgG4RD with hypocomplementemia, there were no significant differences in the galactosylation and sialyation of IgG4 N-glycans. Furthermore, there were no significant differences in the glycosylation of IgG4 N-glycans between patients with and without individual organ involvement of IgG4RD. Conclusions Although IgG4 has anti-inflammatory properties, IgG4 G0 and F1 glycans were increased in patients with IgG4RD. Our results suggest that decreased galactosylation of IgG4 is not related to complement activation and the differences of individual organ involvement in IgG4RD. IgG4 fucosylation change may be related to complement activation in IgG4RD. Further investigation is needed to clarify the role of IgG4 in IgG4RD.", "link"=>"http://www.mendeley.com/research/changes-nglycans-igg4-relationship-existence-hypocomplementemia-individual-organ-involvement-patient", "reader_count"=>1, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1}, "reader_count_by_subject_area"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "reader_count_by_subdiscipline"=>{"Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}}, "group_count"=>0}

Scopus | Further Information

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