단순포진 바이러스로 유도한 베체트병 마우스모델에서 Poly I:C 에 의해 유도된 IL-15Rα의 항 염증 효과에 관한 연구

Alternative Title
Ju Young Choi
Author(s)
Choi, Ju young
Alternative Author(s)
Ju Young Choi
Advisor
손성향
Department
일반대학원 의생명과학과
Publisher
The Graduate School, Ajou University
Publication Year
2012-02
Language
eng
Keyword
Behcet's diseaseHerpes Simplex virusIL-15RαPoly I:Cmemory CD8+ T cellsmouse model
Alternative Abstract
Behcet’s disease (BD) is a chronic, multi-systemic disorder that has arthritic, intestinal, mucocutaneous, ocular, vascular, and central nervous system affects. Interleukin-15 receptor alpha (IL-15Rα) forms stable complex with IL-15 on the cell surface of activated monocytes and mediates the proliferation of memory CD8+ T cells. Recent studies informed that Polyinosinic:polycytidylic acid (Poly I:C) is an immunostimulant which boosts the generation of memory T cells though induction of IL-15 and IL-15Rα. We found that the frequencies of IL-15Rα were significantly lower in HSV-induced BD mouse model than control mice. Therefore, this study was conducted to determine whether Poly I:C supplementation could induce memory cells through up-regulation of IL-15Rα, and reduce inflammation in HSV-induced BD symptoms. To evaluate whether the expression of IL-15Rα could be increased by poly I:C in vivo, Poly I:C was administered into normal and BD mice. Then, Poly I:C administered BD mice were subsequently observed the change of symptoms until 17 days after the last injection. The frequencies of IL-15Rα and memory CD8+ T cells were significantly up-regulated in Poly I:C injected mice. Poly I:C improved the symptoms and decreased severity score through down-regulation of pro-inflammatory cytokines and elevated regulatory and memory T cells. In conclusion, these results suggest that IL-15Rα is an important factor for the regulation of symptoms in HSV-induced BD mice.
URI
https://dspace.ajou.ac.kr/handle/2018.oak/19401
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Graduate School of Ajou University > Department of Biomedical Sciences > 3. Theses(Master)
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