Evaluation of Impact of Interferon-Induced Helicase C Domain-Containing Protein 1 Gene in Egyptian Systemic Lupus Erythematosus Patients and its Relationship With Vascular Manifestations of the Disease
Sahar NASSEF1, Mervat ESSAM2, Dina ABDELFATTAH3, Doaa ELSEHEMY2, Sahar ABOUELEZZ2
1Department of Internal Medicine, Faculty of Medicine Cairo University, Vascular Division, Cairo, Egypt
2Department of Internal Medicine, Division of Rheumatology & Clinical Immunology, Faculty of Medicine Cairo University, Cairo, Egypt
3Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine Cairo University, Cairo, Egypt
Keywords: Interferon-induced helicase C domain-containing protein 1 gene, vascular, von Willebrand factor
Objectives: This study aims to investigate the impact of interferon-induced helicase C domain-containing protein 1 (IFIH1) gene single nucleotide polymorphism on interferon pathway signaling in systemic lupus erythematosus (SLE) patients specifically with vascular affection.
Patients and methods: The cross-sectional study included 30 consecutive SLE patients (2 males, 28 females; mean age 28±3.4 years; range 16 to 40 years) diagnosed according to the American College of Rheumatology revised criteria and 10 healthy age- and sex-matched controls (2 males, 8 females; mean age 27±2.5 years; range 22 to 23 years). SLE patients and controls were compared in terms of quantitative reverse transcriptase polymerase chain reaction gene expression of IFIH1 gene, von Willebrand factor, carotid intima-media thickness, and ankle brachial index.
Results: Interferon-induced helicase C domain-containing protein 1 gene expression was significantly higher in SLE patients than controls (1.7±0.6 and 0.5±0.2, respectively) (p<0.0001). IFIH1 gene expression was highly related to vascular complication with a cutoff point at 1.74 and it positively correlated with other endothelial dysfunction markers.
Conclusion: Interferon-induced helicase C domain-containing protein 1 gene (single nucleotide polymorphism 1990670) is associated with SLE in Egyptian patients. Expression of IFIH1 gene is related to disease activity and may serve as a novel predictor of vascular affection in SLE.
The authors declared no conflicts of interest with respect to the authorship and/or publication of this article.
The authors received no financial support for the research and/or authorship of this article.