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Related Experiment Video

Updated: Jul 3, 2026

Detection of MicroRNA Expression in the Kidneys of Immunoglobulin A Nephropathic Mice
05:39

Detection of MicroRNA Expression in the Kidneys of Immunoglobulin A Nephropathic Mice

Published on: July 8, 2020

Multi-omics triangulation identifies complement factor H as a genetically supported protective factor in IgA

Ningjun Shao1, Kuibi Tan1, Ping Chen1

  • 1Department of Nephrology, Ningbo No.2 Hospital, Wenzhou Medical University, Ningbo, Zhejiang Province, China.

Clinical Kidney Journal
|July 2, 2026
PubMed
Summary
This summary is machine-generated.

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Higher levels of complement factor H protect against IgA nephropathy. This genetic insight supports new therapies targeting the complement system for kidney disease and age-related macular degeneration.

Area of Science:

  • Immunogenetics
  • Nephrology
  • Complement System Biology

Background:

  • IgA nephropathy is a leading cause of glomerulonephritis worldwide.
  • Complement system dysregulation, particularly the alternative pathway, drives IgA nephropathy pathogenesis.
  • The complement factor H gene cluster is a known susceptibility locus, but causal variants remain unclear due to linkage disequilibrium and structural variations.

Purpose of the Study:

  • To investigate the genetic association and protective effects of circulating complement proteins in IgA nephropathy.
  • To identify precise causal genetic targets within the complement factor H gene cluster.
  • To explore the therapeutic potential of modulating complement factor H.

Main Methods:

  • Utilized a multi-omics approach integrating proteomics, eQTLs, and transcriptomics.
Keywords:
IgA nephropathyMendelian randomizationalternative pathwaycomplement factor Hmulti-omics

Related Experiment Videos

Last Updated: Jul 3, 2026

Detection of MicroRNA Expression in the Kidneys of Immunoglobulin A Nephropathic Mice
05:39

Detection of MicroRNA Expression in the Kidneys of Immunoglobulin A Nephropathic Mice

Published on: July 8, 2020

  • Employed Bayesian colocalization to pinpoint causal variants.
  • Conducted Mendelian randomization analyses using genome-wide association study data.

    • Main Results:

    • Genetically predicted higher complement factor H levels correlate with reduced IgA nephropathy risk.
    • A specific missense variant in the complement factor H gene was identified as the protective signal.
    • Complement factor H demonstrated protective benefits for both IgA nephropathy and age-related macular degeneration.

    Conclusions:

    • Convergent genomic and transcriptomic data confirm complement factor H as a protective factor in IgA nephropathy.
    • Enhanced complement factor H activity is linked to decreased disease susceptibility.
    • Findings support the development of recombinant complement factor H therapies and alternative pathway inhibitors.