cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy

The presence of Streptococcus mutans expressing Cnm protein encoded by cnm (cnm-positive S. mutans) in the oral cavity is associated with immunoglobulin A (IgA) nephropathy (IgAN). However, the precise mechanism by which cnm-positive S. mutans is involved in the pathogenesis of IgAN remains unclear....

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Main Authors: Taro Misaki, Shuhei Naka, Hitoshi Suzuki, Mingfeng Lee, Ryosuke Aoki, Yasuyuki Nagasawa, Daiki Matsuoka, Seigo Ito, Ryota Nomura, Michiyo Matsumoto-Nakano, Yusuke Suzuki, Kazuhiko Nakano
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9980772/?tool=EBI
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author Taro Misaki
Shuhei Naka
Hitoshi Suzuki
Mingfeng Lee
Ryosuke Aoki
Yasuyuki Nagasawa
Daiki Matsuoka
Seigo Ito
Ryota Nomura
Michiyo Matsumoto-Nakano
Yusuke Suzuki
Kazuhiko Nakano
author_facet Taro Misaki
Shuhei Naka
Hitoshi Suzuki
Mingfeng Lee
Ryosuke Aoki
Yasuyuki Nagasawa
Daiki Matsuoka
Seigo Ito
Ryota Nomura
Michiyo Matsumoto-Nakano
Yusuke Suzuki
Kazuhiko Nakano
author_sort Taro Misaki
collection DOAJ
description The presence of Streptococcus mutans expressing Cnm protein encoded by cnm (cnm-positive S. mutans) in the oral cavity is associated with immunoglobulin A (IgA) nephropathy (IgAN). However, the precise mechanism by which cnm-positive S. mutans is involved in the pathogenesis of IgAN remains unclear. The present study evaluated glomerular galactose-deficient IgA1 (Gd-IgA1) to clarify the association between the presence of cnm-positive S. mutans and glomerular Gd-IgA1 in patients with IgAN. The presence of S. mutans and cnm-positive S. mutans was evaluated by polymerase chain reaction in saliva specimens from 74 patients with IgAN or IgA vasculitis. Immunofluorescent staining of IgA and Gd-IgA1 using KM55 antibody in clinical glomerular tissues was then performed. There was no significant association between the glomerular staining intensity of IgA and the positive rate of S. mutans. However, there was a significant association between the glomerular staining intensity of IgA and the positive rate of cnm-positive S. mutans (P < 0.05). There was also a significant association between the glomerular staining intensity of Gd-IgA1 (KM55) and the positive rate of cnm-positive S. mutans (P < 0.05). The glomerular staining intensity of Gd-IgA1 (KM55) was not associated with the positive rate of S. mutans. These results suggest that cnm-positive S. mutans in the oral cavity is associated with the pathogenesis of Gd-IgA1 in patients with IgAN.
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spelling doaj.art-69faf92b6e4f4d9c8f0a22046bdc2efa2023-03-05T05:31:34ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01183cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathyTaro MisakiShuhei NakaHitoshi SuzukiMingfeng LeeRyosuke AokiYasuyuki NagasawaDaiki MatsuokaSeigo ItoRyota NomuraMichiyo Matsumoto-NakanoYusuke SuzukiKazuhiko NakanoThe presence of Streptococcus mutans expressing Cnm protein encoded by cnm (cnm-positive S. mutans) in the oral cavity is associated with immunoglobulin A (IgA) nephropathy (IgAN). However, the precise mechanism by which cnm-positive S. mutans is involved in the pathogenesis of IgAN remains unclear. The present study evaluated glomerular galactose-deficient IgA1 (Gd-IgA1) to clarify the association between the presence of cnm-positive S. mutans and glomerular Gd-IgA1 in patients with IgAN. The presence of S. mutans and cnm-positive S. mutans was evaluated by polymerase chain reaction in saliva specimens from 74 patients with IgAN or IgA vasculitis. Immunofluorescent staining of IgA and Gd-IgA1 using KM55 antibody in clinical glomerular tissues was then performed. There was no significant association between the glomerular staining intensity of IgA and the positive rate of S. mutans. However, there was a significant association between the glomerular staining intensity of IgA and the positive rate of cnm-positive S. mutans (P < 0.05). There was also a significant association between the glomerular staining intensity of Gd-IgA1 (KM55) and the positive rate of cnm-positive S. mutans (P < 0.05). The glomerular staining intensity of Gd-IgA1 (KM55) was not associated with the positive rate of S. mutans. These results suggest that cnm-positive S. mutans in the oral cavity is associated with the pathogenesis of Gd-IgA1 in patients with IgAN.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9980772/?tool=EBI
spellingShingle Taro Misaki
Shuhei Naka
Hitoshi Suzuki
Mingfeng Lee
Ryosuke Aoki
Yasuyuki Nagasawa
Daiki Matsuoka
Seigo Ito
Ryota Nomura
Michiyo Matsumoto-Nakano
Yusuke Suzuki
Kazuhiko Nakano
cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy
PLoS ONE
title cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy
title_full cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy
title_fullStr cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy
title_full_unstemmed cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy
title_short cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy
title_sort cnm positive streptococcus mutans is associated with galactose deficient iga in patients with iga nephropathy
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9980772/?tool=EBI
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