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Overexpression of interferon-γ and indoleamine 2, 3-dioxygenase in systemic lupus erythematosus: Relationship with the disease activity

Mohammadi, S. and Sedighi, S. and Memarian, A. and Yazdani, Y. (2017) Overexpression of interferon-γ and indoleamine 2, 3-dioxygenase in systemic lupus erythematosus: Relationship with the disease activity. LaboratoriumsMedizin, 41 (1). pp. 41-47.

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Abstract

Indoleamine 2, 3-dioxygenase (IDO) is a tryptophan catabolizing enzyme which is involved in immune regulation and autoimmune disorders such as systemic lupus erythematosus (SLE). Interferon-γ (IFN-γ) is an inflammatory cytokine which is the major inducer of IDO expression. Here, we evaluated the level of IFN-γ and IDO among SLE patients in correlation with the severity of SLE. Fifty-three SLE patients and 35 age matched healthy donors were enrolled in this study. Systemic lupus erythematosus disease activity index (SLEDAI) was used to calculate the disease activity. Real-time RT-PCR and ELISA were used to evaluate the gene expression of IDO and IFN-γ plasma concentration, respectively. We showed that IDO-1, IDO-2 and IFN-γ were overexpressed among SLE patients significantly (p<0.0001). There were significant positive correlations between IFN-γ with the expression of IDO-1 (r=0.722, p<0.0001) and IDO-2 (r=0.682, p<0.0001). There were also positive correlations between SLEDAI scores with IDO-1 (r=0.675, p<0.0001), IDO-2 (r=0.727, p<0.0001) and IFN-γ (r=0.907, p<0.0001). IDO expression and IFN-γ level could be introduced as helpful biomarkers for the determination of disease severity in SLE patients. © 2017 2017 Walter de Gruyter GmbH, Berlin/Boston.

Item Type: Article
Additional Information: cited By 0
Subjects: مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
Divisions: UNSPECIFIED
Depositing User: GOUMS
Date Deposited: 18 Jun 2017 16:45
Last Modified: 18 Jun 2017 16:45
URI: http://eprints.goums.ac.ir/id/eprint/5099

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