What question did this study set out to answer?

This research aims to analyze the N-glycan glycoforms of tonsillar IgA1 and aberrant IgA1 prevalent in IgA nephropathy patients.

February 9, 2026Journal of Nephrology

Similarities between N -glycan glycoform of tonsillar IgA1 and that of aberrant IgA1 abundant in IgA nephropathy patient serum

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Authors

NINaomi IwanamiKitasato University Hospital HIHitoo IwaseKitasato University NTNaoto TakahashiAkita University

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Implication

Comparative analysis of N-glycan glycoforms in IgA1 from IgA nephropathy patients reveals critical structural similarities, suggesting implications for disease mechanisms.

Key Points

This research aims to analyze the N-glycan glycoforms of tonsillar IgA1 and aberrant IgA1 prevalent in IgA nephropathy patients.
Conducted 3-dimensional mapping analysis of N-glycan glycoforms.
Compared IgA1 from tonsillar tissue, aberrant IgA1, and serum IgA1.
Analyzed structural characteristics and sugar chain compositions.
Aberrant IgA1 exhibited a higher proportion of high mannose-type N-glycans (25%) compared to serum IgA1 and tonsillar IgA1 (5%-6%).
Higher levels of neutral complex-type N-glycans with fucose were found in both aberrant IgA1 and tonsillar IgA1.
A signature component of aberrant IgA1 was identified as fully galactosylated biantenna containing fucose.

Cite This Study

Iwanami et al. (2008) studied this question.

synapsesocial.com/papers/698979b9f0ec2af6756e7971 https://doi.org/10.1093/joneph/21.1.118

View Full Paper

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Implication

Comparative analysis of N-glycan glycoforms in IgA1 from IgA nephropathy patients reveals critical structural similarities, suggesting implications for disease mechanisms.

Similarities between N -glycan glycoform of tonsillar IgA1 and that of aberrant IgA1 abundant in IgA nephropathy patient serum

Discussion

Member takes

Implication

Key Points

Cite This Study

Similarities between N -glycan glycoform of tonsillar IgA1 and that of aberrant IgA1 abundant in IgA nephropathy patient serum

Discussion

Member takes

Implication

Key Points

Cite This Study

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