Sjögren's disease & overlap diseases

Impact of IgG Fc Glycosylation on Disease Dynamics in Patients With Primary Sjögren Disease

Arthritis RheumatolPublished Cross-sectional study

Authors' conclusion

This study points to a novel role of IgG Fc glycosylation in patients with SjD in predicting disease transition, monitoring disease activity, and stratifying risk of NHL development.

Study context

Population
Suspected and confirmed primary Sjögren disease (SjD), Belgian Sjögren's Syndrome Transition Trial
Participants
300 participants
Exposure
Primary SjD vs asymptomatic anti-SSA carriers and patients with sicca
Outcome
IgG Fc sialylation and galactosylation levels

Main finding

As reported in the abstract

  • SjD had significantly lower sialylation and galactosylation levels vs asymptomatic carriers of anti-SSA and sicca
  • Lower sialylation and galactosylation significantly associated with increased B cell activation markers and distinct autoantibody profiles, particularly multiple autoantibody reactivities
  • Lower levels also linked to histopathological salivary gland alterations, higher Hocevar scores and risk factors for non-Hodgkin lymphoma (NHL) development
  • Mono-anti-Ro60 positive and anti-SSA negative SjD had normal IgG Fc glycosylation

Observational data: associations, not effects.

Original publication

Impact of IgG Fc Glycosylation on Disease Dynamics in Patients With Primary Sjögren Disease. Arthritis Rheumatol. Published 11 November 2024. doi:10.1002/art.43018

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.