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Interleukin-$32{gamma}$ Transgenic Mice Resist LPS-Mediated Septic Shock
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  • Interleukin-$32{gamma}$ Transgenic Mice Resist LPS-Mediated Septic Shock
  • Interleukin-$32{gamma}$ Transgenic Mice Resist LPS-Mediated Septic Shock
저자명
Kim. Sun Jong,Lee. Siyoung,Kwak. Areum,Kim. Eunsom,Jo. Seunghyun,Bae. Suyoung,Lee. Youngmin,Ryoo. Soyoon,Choi. Jida,Kim. Soohyun
간행물명
Journal of microbiology and biotechnology
권/호정보
2014년|24권 8호|pp.1133-1142 (10 pages)
발행정보
한국미생물생명공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Interleukin-32 (IL-32) is a cytokine and inducer of various proinflammatory cytokines such as $TNF{alpha}$, IL-$1{eta}$, and IL-6 as well as chemokines. There are five splicing variants (${alpha}$, ${eta}$, ${gamma}$, ${delta}$, and ${varepsilon}$) and IL-$32{gamma}$ is the most active isoform. We generated human IL-$32{gamma}$ transgenic (IL-$32{gamma}$ TG) mice to express high level of IL-$32{gamma}$ in various tissues, including immune cells. The pathology of sepsis is based on the systemic inflammatory response that is characterized by upregulating inflammatory cytokines in whole body, particularly in response to gram-negative bacteria. We investigated the role of IL-$32{gamma}$ in a mouse model of experimental sepsis by using lipopolysaccharides (LPS). We found that IL-$32{gamma}TG$ mice resisted LPS-induced lethal endotoxemia. IL-$32{gamma}$ reduced systemic cytokines release after LPS administration but not the local immune response. IL-$32{gamma}TG$ increased neutrophil influx into the initial foci of the primary injected site, and prolonged local cytokines and chemokines production. These results suggest that neutrophil recruitment in IL-$32{gamma}TG$ occurred as a result of the local induction of chemokines but not the systemic inflammatory cytokine circulation. Together, our results suggest that IL-$32{gamma}$ enhances an innate immune response against local infection but inhibits the spread of immune responses, leading to systemic immune disorder.