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Frequencies of IL-15Ralpha+ cells in patients with Behcet's disease and the effects of overexpressing IL-15Ralpha+ on disease symptoms in mice

Authors
Islam, SMS | Choi, B | Choi, J | Lee, ES  | Sohn, S
Citation
Cytokine, 110. : 257-266, 2018
Journal Title
Cytokine
ISSN
1043-46661096-0023
Abstract
It has been suggested higher serum levels of IL-15 and lower expression levels of IL-15 receptor alpha (IL-15Ralpha) are correlated with pathogenesis of Behcet's disease (BD). However, whether overexpressing IL-15Ralpha could be used as a therapeutic candidate for BD is currently unclear. Therefore, the purpose of this study was to determine whether overexpressing IL-15Ralpha could affect BD symptoms in a mouse model. IL-15/IL-15Ralpha complex expressing vector or protein complex of IL-15/IL-15Ralpha-Fc was used to treat BD mice. Frequencies of IL-15Ralpha+ cells in peripheral blood leukocytes (PBL) and lymph node cells were determined using a flow cytometer. BD symptoms in mice improved after treatment with IL-15/15Ralpha expression vector or IL-15/IL-15Ralpha-Fc protein complex. In addition, treatment with pIL-15/15Ralpha significantly (p=.016) decreased disease severity score of BD mice compared to treatment with control vector. Frequencies of IL-15Ralpha+ cells were also significantly (p=.01) higher in peritoneal macrophages of pIL-15/15Ralpha treated BD mice than those of mice treated with control vector. Frequencies of IL-15Ralpha+ PBL were also significantly higher in BD mice treated with IL-15/IL-15Ralpha-Fc protein complex than those in the control group. These results suggest up-regulating IL-15Ralpha+ cells could be used as novel therapeutic strategies to control BD in the future.
Keywords
DOI
10.1016/j.cyto.2018.01.010
PMID
29396044
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Dermatology
Journal Papers > School of Medicine / Graduate School of Medicine > Microbiology
Ajou Authors
손, 성향  |  이, 은소
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