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01.12.2014 | Research | Ausgabe 1/2014 Open Access

Journal of Translational Medicine 1/2014

Overexpression of IL-17RC associated with ocular sarcoidosis

Zeitschrift:
Journal of Translational Medicine > Ausgabe 1/2014
Autoren:
Wenting Wu, Ming Jin, Yujuan Wang, Baoying Liu, Defen Shen, Ping Chen, Susan Hannes, Zhiyu Li, Sima Hirani, Shayma Jawad, H Nida Sen, Chi-Chao Chan, Robert B Nussenblatt, Lai Wei, UNITE Human Ocular Inflammation Consortium
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1479-5876-12-152) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors' contributions

LW and RBN conceived the study and drafted the manuscript. LW, MJ, HNS, CCC, and RBN participated in the study design. WW, YW, PC, BL, ZL, SH, and SJ carried out the experiments. All authors read and approved the final manuscript.

Abstract

Background

Sarcoidosis is a chronic inflammatory disease with a systemic granulomatous disorder affecting multiple organs including the eye. Both CD4+ T cell and macrophage have been linked to the pathogenesis of the disease.

Methods

The expression of IL-17RC was measured using FACS,immunohistochemistry and real-time PCR. Serum level of IL-17 was detected using ELISA.

Results

An elevated expression of IL-17RC on CD8+ T cells in peripheral blood was found in patients with ocular sarcoidosis as compared to healthy controls. Interestingly, we found a significant increase in the serum level of IL-17 in patients with ocular sarcoidosis as compared to healthy controls, which may be responsible for the induction of IL-17RC on CD8+ cells. In addition, IL-17RC appeared only in the retinal tissue of the patient with clinically active sarcoidosis.

Conclusions

Our results suggested a potential involvement of IL-17RC+CD8+ T cells in pathogenesis of ocular sarcoidosis.
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