Infections and systemic lupus erythematosus: Binding or sparring partners?

Donato Rigante, Susanna Esposito

Research output: Contribution to journalArticle

Abstract

Extensive work on experimental animal models clearly demonstrates that infectious agents can break immunological tolerance to self-antigens and induce autoimmune disorders, mainly systemic lupus erythematosus (SLE). The establishment of a causative link between infections and autoimmunity has been largely studied in a host of clinical studies, proving the role of infectious agents in the induction, as well as in the progression or exacerbation of SLE. However, we are far from a plain understanding of microbial-host interactions in the pathogenesis of SLE. Much serological, molecular and geoepidemiological evidence supports the relationship of different environmental infectious triggers in the inception of SLE-related autoimmune phenomena with adjuvant effects. The promotion of autoimmune responses through bystander activation or epitope spreading via multiple inflammatory pathways has been confirmed in animal models. Different viruses have been implicated in SLE pathogenesis, particularly Epstein-Barr virus, but also parvovirus B19, cytomegalovirus and retroviruses. SLE patients usually have an impaired immune response towards Epstein-Barr virus and dysregulation of the viral latency period. Furthermore, the accumulation of endogenous retroviral products might trigger the production of interferon and anti-DNA antibodies. In addition, protozoan infections might even protect from autoimmune processes and rescind an ongoing B cell activation. Herein, we discuss which type of infections induce, exacerbate or inhibit autoimmune disorders and analyze the principal infection-induced immunological mechanisms influencing the development of SLE.

Original languageEnglish
Pages (from-to)17331-17343
Number of pages13
JournalInternational Journal of Molecular Sciences
Volume16
Issue number8
DOIs
Publication statusPublished - Jul 29 2015

Fingerprint

infectious diseases
Viruses
Systemic Lupus Erythematosus
viruses
pathogenesis
animal models
Animals
Infection
Chemical activation
Interferons
Epitopes
actuators
Antinuclear Antibodies
Autoantigens
interferon
activation
disorders
Antigens
Antibodies
Autoimmunity

Keywords

  • Cytomegalovirus
  • Epstein-Barr virus
  • Parvovirus B19
  • Retrovirus
  • Systemic lupus erythematosus

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Spectroscopy
  • Inorganic Chemistry
  • Catalysis
  • Molecular Biology
  • Computer Science Applications

Cite this

Infections and systemic lupus erythematosus : Binding or sparring partners? / Rigante, Donato; Esposito, Susanna.

In: International Journal of Molecular Sciences, Vol. 16, No. 8, 29.07.2015, p. 17331-17343.

Research output: Contribution to journalArticle

Rigante, Donato ; Esposito, Susanna. / Infections and systemic lupus erythematosus : Binding or sparring partners?. In: International Journal of Molecular Sciences. 2015 ; Vol. 16, No. 8. pp. 17331-17343.
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