Evidence map›Paper›PMID 40195177›Full record

ArticleClinical and experimental nephrology2025

Longitudinal changes in the abundance of IgA1 O- and N-glycoforms in IgA nephropathy.

Masaya Hirayama, Yukako Ohyama, Yudai Tsuji, Tetsuro Enomoto, Midori Hasegawa, Naotake Tsuboi, Jan Novak, Kazuo Takahashi

Abstract read
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Article in Clinical and experimental nephrology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

8 authors.

Masaya HirayamaDepartment of Biomedical Molecular Sciences, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-Cho, Toyoake, Aichi, 470-1192, Japan.
Yukako OhyamaDepartment of Biomedical Molecular Sciences, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-Cho, Toyoake, Aichi, 470-1192, Japan.
Yudai TsujiDepartment of Biomedical Molecular Sciences, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-Cho, Toyoake, Aichi, 470-1192, Japan.
Tetsuro EnomotoOriental Yeast Co., Ltd, 50 Kanou-Cho, Nagahama, Shiga, 526-0804, Japan.
Midori HasegawaDepartment of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-Cho, Toyoake, Aichi, 470-1192, Japan.
Naotake TsuboiDepartment of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-Cho, Toyoake, Aichi, 470-1192, Japan.
Jan NovakDepartment of Microbiology, University of Alabama at Birmingham, 1720 2nd Ave South, Birmingham, AL, 35294, USA.
Kazuo TakahashiDepartment of Biomedical Molecular Sciences, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-Cho, Toyoake, Aichi, 470-1192, Japan. kazuot@fujita-hu.ac.jp.ORCID http://orcid.org/0000-0002-5774-4620

Funding

Elucidating IgA Nephropathy through Genetic Studies of IgA1 GlycosylationR01DK082753 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GHARAVI, ALI G, NOVAK, JAN · 2009 to 2024
$8.7M
Molecular Basis of Pathogenicity of IgA1-containing Immune ComplexesR01DK078244 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI JAN NOVAK · 2007 to 2026
$6.0M
Pathogenic Autoantibodies with Specificity for Aberrant Glycoproteins: Assessment of a Therapeutic Target in an Autoimmune DiseaseR01AI149431 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GREEN, TODD JASON, NOVAK, JAN · 2020 to 2024
$2.6M
Molecular Basis of Pathogenicity of IgA1-containing Immune ComplexesR56DK078244 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI NOVAK, JAN · 2012 to 2012
$92k
Foundation for the National Institutes of Health DK078244Foundation for the National Institutes of Health DK082753Japan Society for the Promotion of Science London 20K22915Japan Society for the Promotion of Science London 22K08366Japan Society for the Promotion of Science London 22K16230NIAID NIH HHS R01 AI149431NIDDK NIH HHS R01 DK078244NIDDK NIH HHS R01 DK082753NIDDK NIH HHS R56 DK078244UAB research-acceleration funds AI149431
6 · The paper itself

Abstract

backgroundIgA nephropathy (IgAN) is the most common type of primary glomerulonephritis. Elevation in the blood levels of aberrantly glycosylated IgA1 is a crucial initial step in IgAN pathogenesis. Here, we aimed to determine the longitudinal changes in the serum levels of IgA1 O- and N-glycoforms in patients with IgAN receiving different treatments.

methodsWe enrolled Japanese patients diagnosed with primary IgAN: 10 patients who underwent tonsillectomy and corticosteroid therapy (T-CST), 7 who received corticosteroid therapy (CST), 8 who received conservative therapy (CO), and 5 with other renal diseases who received corticosteroid therapy (ORD) as disease controls. IgA was purified from patient sera collected at diagnosis and post-treatment. After sample preparation, O-glycoforms of the hinge region (HR) and N-glycoforms of the fragment crystallizable region were analyzed using high-resolution mass spectrometry (MS).

resultsThe MS analysis of O-glycoforms of IgA1 showed that the relative abundance of IgA1 with 3GalNAc3Gal, which we previously identified as a characteristic IgA1 O-glycoform in IgAN, decreased post-treatment only in the T-CST group (P = 0.0195). Regarding N-glycoforms, the relative abundance of fucosylated N-glycan at asparagine (Asn)

conclusionThe MS analysis of O- and N-glycoforms of IgA1 revealed substantial changes in their abundance in the T-CST group but not in the CST, CO, and ORD groups. Our study provides new insights into how specific treatments alter the IgA1 glycoform abundance.

Indexed as

Glomerulonephritis, IGAImmunoglobulin AAdrenal Cortex HormonesAdultFemaleGlycosylationHumansLongitudinal StudiesMaleMiddle AgedTonsillectomyYoung AdultAdrenal Cortex Hormonesglycosylated IgAImmunoglobulin AIgA1IgA nephropathyMass spectrometryN-GlycanO-Glycan

Identifiers

PMID40195177
PMCPMC12331428

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.