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Variable Clinical Phenotypes and Relation of Interferon Signature with Disease Activity in ADA2 Deficiency

Overview
Journal J Rheumatol
Specialty Rheumatology
Date 2019 Jan 17
PMID 30647181
Citations 27
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Abstract

Objective: An upregulation of type I interferon (IFN) stimulated genes [IFN score (IS)] was described in patients with adenosine deaminase 2 deficiency (DADA2). We describe the clinical course of 5 such patients and the role of IS as a marker of disease activity and severity.

Methods: Expression levels of IS were determined by quantitative real-time PCR.

Results: Five white patients were identified as carrying mutations. The IS before treatment was elevated in 4 out of 5 patients and decreased after treatment.

Conclusion: Our data confirm the high variability of DADA2 and suggest type I IS as a biomarker of disease activity.

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