Regulatory T cells and Th1/Th2 in peripheral blood and their roles in asthmatic children

Translational Pediatrics
Yan-Li YangTian-Ying Zhong

Abstract

To determine the changes in CD4(+)CD25(+)Foxp3(+) regulatory T cells (Treg) and the Th1/Th2 ratio in peripheral blood of children with asthma, in order to investigate its association with asthma. A total of 150 children with asthma were allocated into the acute phase group (n=94) and remission phase group (n=56) based on clinical manifestations. The acute phase group was subdivided into the mild group (n=54) and severe group (n=40). Flow cytometry was applied to determine CD4(+)CD25(+)Foxp3(+) Treg, CD4(+)IFN-γ(+) Th1 and CD4(+)IL-4(+) Th2 levels in peripheral blood of different groups, and the results were compared with normal children (control group, n=50). The Treg level was significantly lower in the asthma group than the control group (P<0.01): the Treg level was significantly lower in the acute phase group than the remission phase group and control group (P<0.01) and also significantly lower in the severe group than the mild group (P<0.01). The Th1/Th2 ratio was significantly lower in the asthma group than the control group (P<0.01) and also significantly lower in the acute phase group than the remission phase group and control group (P<0.01). The Treg level in peripheral blood of asthmatic children was negatively correla...Continue Reading

Citations

Jul 21, 2017·Frontiers in Pediatrics·Aldara Martin Alonso, Sejal Saglani

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