Study of Neonatal IgG Fc Receptor Expression in Natural Killer T Cells Expressing an Invariant T Receptor : Implication in the Pathophysiology of Systemic Lupus

Summary

This study evaluates the variation of expression of the neonatal Fc receptor (FcRn) in Natural Killer T Cells Expressing an Invariant T Receptor (iNKT) and monocytes along with the surface expression of Fc gamma type II receptor (RII) and RIII in active or newly diagnosed lupus patients compared to inactive lupus patients.

Eligibility

Inclusion Criteria:

* Age ≥ 18 years
* Diagnosis of definite systemic lupus which may be associated with secondary antiphospholipid syndrome and/or secondary Gougerot-Sjögren's
* Lupus patient, newly diagnosed or known, untreated or in relapse
* Lupus patient considered stable by the treating practitioner
* Requiring blood sampling for follow-up

Exclusion Criteria:

* Main autoimmune disease other than lupus
* Patient under legal protection, guardianship or curators
* Opposition to data processing

Conditions3

Interventions1

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