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Scand J Immunol. 2013 Dec;78(6):523-8. doi: 10.1111/sji.12110.

The expression and significance of TIPE2 in peripheral blood mononuclear cells from asthmatic children.

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  • 1Institute of Immunology, Shandong University School of Medicine, Jinan, Shandong, China.

Abstract

Tumour necrosis factor-α-induced protein-8 like-2 (TIPE2) is a newly identified immune negative regulator. The abnormal expression of TIPE2 has been found in several human inflammatory diseases. However, the expression level and clinical significance of TIPE2 in childhood asthma remain unclear. In this study, we detected TIPE2 expression in peripheral blood mononuclear cells (PBMC) from 42 children with asthma and 39 healthy controls by RT-PCR, qRT-PCR and Western blot. We also detected the levels of serum total immunoglobulin E (IgE), eosinophil (EO), interleukin-4 (IL-4) and interferon-γ (IFN-γ) and analysed the correlations of TIPE2 expression with IgE, EO, IL-4 and IFN-γ. The results showed that TIPE2 mRNA and protein expression were decreased in children with asthma compared with healthy controls. The levels of IgE, EO and IL-4 in the children with asthma were obviously higher than those in normal controls, while the level of IFN-γ in patients with asthma was significantly lower than that in healthy subjects. Furthermore, the expression level of TIPE2 mRNA was negatively correlated with IgE, EO and IL-4. However, no statistically significant correlation was found between TIPE2 mRNA expression and serum IFN-γ level. In conclusion, our data suggest that reduced TIPE2 expression may contribute to the pathogenesis of childhood asthma.

© 2013 John Wiley & Sons Ltd.

PMID:
24107080
[PubMed - indexed for MEDLINE]
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