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ID 70081
フルテキストURL
fulltext.pdf 16.8 MB
著者
Matsuoka, Daiki Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Suehara, Kana Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Naka, Shuhei Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kaken ID publons researchmap
Misaki, Taro Division of Nephrology, Seirei Hamamatsu General Hospital
Nagasawa, Yasuyuki Department of General Internal Medicine, Hyogo Medical University
Ito, Seigo Department of Internal Medicine, Japan Self-Defense Force Iruma Hospital
Suehiro, Yuto Department of Pediatric Dentistry, Graduate School of Dentistry, The University of Osaka
Nomura, Ryota Department of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University
Nakano, Kazuhiko Department of Pediatric Dentistry, Graduate School of Dentistry, The University of Osaka
Matsumoto-Nakano, Michiyo Department of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kaken ID
抄録
Background: The present study was conducted to examine the interaction between collagen-binding protein (Cnm) of Streptococcus mutans and immunoglobulin (IgA) to clarify the possible involvement in IgA nephropathy (IgAN) development.
Methods: The binding of Cnm to human immunoglobulins was examined using an enzyme-linked immunosorbent assay. A nephritis-induced rat model was employed to confirm the localization of Cnm.
Results: IgA1 showed significantly greater binding ability to Cnm than to other bacterial surface proteins, and Cnm showed significantly greater binding ability to IgA1 than to other immunoglobulins. In rats administered Cnm, IgA deposition was observed in the glomerular mesangial region. Furthermore, biotin-labeled Cnm was observed in the same region as IgA deposition in the Cnm group.
Conclusions: Taken together, it is considered that following invasion into the bloodstream, Cnm binds to and forms a complex with IgA1, leading to deposition of IgA1 in renal glomeruli.
キーワード
bacterial surface proteins
collagen-binding protein
human immunoglobulins
IgA nephropathy
Streptococcus mutans
発行日
2026-01-07
出版物タイトル
Frontiers in Cellular and Infection Microbiology
15巻
出版者
Frontiers Media SA
開始ページ
1673581
ISSN
2235-2988
資料タイプ
学術雑誌論文
言語
英語
OAI-PMH Set
岡山大学
著作権者
© 2026 Matsuoka, Suehara, Naka, Misaki, Nagasawa, Ito, Suehiro, Nomura, Nakano and Matsumoto-Nakano.
論文のバージョン
publisher
PubMed ID
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.3389/fcimb.2025.1673581
ライセンス
https://creativecommons.org/licenses/by/4.0/
Citation
Matsuoka D, Suehara K, Naka S, Misaki T, Nagasawa Y, Ito S, Suehiro Y, Nomura R, Nakano K and Matsumoto-Nakano M (2026) Binding of IgA1 and surface-expressed collagen-binding protein of Streptococcus mutans contributes to IgA nephropathy pathogenesis. Front. Cell. Infect. Microbiol. 15:1673581. doi: 10.3389/fcimb.2025.1673581
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