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Related Experiment Videos

Rheumatoid arthritis--a gene transfer disease.

R Grubb1, A Grubb, L Kjellén

  • 1Department of Medical Microbiology, Lund University Hospital, Lund, Sweden.

Experimental and Clinical Immunogenetics
|March 24, 1999
PubMed
Summary
This summary is machine-generated.

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Rheumatoid arthritis (RA) patients

Area of Science:

  • Immunogenetics
  • Rheumatology
  • Molecular Biology

Background:

  • Rheumatoid arthritis (RA) patient sera were crucial for identifying human immunoglobulin (Ig) allotypes in the Gm system.
  • RA patients exhibit a propensity for immune responses against human Ig allotypes, challenging established immunological principles.
  • Previous studies defined major Gm allotypes using amino acid, nucleotide, and gene technology.

Purpose of the Study:

  • To investigate paradoxical findings regarding Gm allotypes and anti-Gm responses in RA.
  • To re-evaluate the etiology of RA, considering a gene transfer hypothesis.
  • To explore the role of viral gene transfer, particularly herpesviruses, in RA pathogenesis.

Main Methods:

  • Analysis of Gm allotypes and anti-Gm antibodies in RA patient sera.

Related Experiment Videos

  • Application of gene technology for allotype definition.
  • Review of viral mechanisms for gene transfer and expression in RA synovial tissue.

    • Main Results:

    • Observed non-nominal or hidden allotypes, seemingly contradicting Mendelian inheritance.
    • Confirmed prevalent immune responses to allotypes from other individuals in RA patients.
    • Demonstrated expression of transferred incompatible Ig allotype genes in RA synovia.

    Conclusions:

    • RA may originate from gene transfer rather than being a primary autoimmune disease.
    • Viral gene transfer, potentially by herpesviruses, could introduce incompatible Ig allotypes.
    • Formation of Ig-anti-Ig complexes from transferred genes may contribute to RA's arthritogenic potential.