›› 2017, Vol. 29 ›› Issue (2): 200-205.DOI: 10.3969/j.issn.1004-1524.2017.02.04

• Animal Science • Previous Articles     Next Articles

Effects of spermidine on immune organ index and expression of inflammatory cytokines in mice

XU Qilin, KANG Bo*, JIANG Dongmei*, WEI Chunye, JIA Yilin, YI Zhixin, CHEN Ziyu   

  1. College of Animal Science and Technology, Sichuan Agricultural University/Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, China
  • Received:2016-08-22 Online:2017-02-15 Published:2017-03-06

Abstract: To clarify the effects of exogenous spermidine on mice immune organs index and expression of inflammatory cytokines in thymus and spleen, 0, 0.05, 0.10 and 0.15 mg·g-1 (body weight) spermidine were intraperitoneal injected for the six-week Kunming mice. The thymus and spleen index were measured after 24 h and the expression of TNF-αIL-1βIL-6 and IFN-γ in thymus and spleen were assessed by quantitative real-time PCR. The results showed that, compared with the control group, intraperitoneal injection of 0.15 mg·g-1 spermidine group significantly (P<0.05) decreased the thymus index and the spleen index. 0.1 mg·g-1 spermidine group enhanced the thymus IFN-γ expression (P<0.05). In the spleen, the expressions of TNF-α and IL-1β in 0.05 mg·g-1 spermidine group were significantly (P<0.05) lower than those of the control group, but the expressions of the IL-6 and IFN-γ gene in 0.1 mg·g-1 spermidine group were significantly higher than those of the control group (P<0.05). The expression of TNF-α in 0.15 mg·g-1 spermidine group was significantly (P<0.05) lower than that of the control group. Thus, the spermidine showed tissue specific and dose dependent manner on the expression of inflammatory cytokines in mice. Low concentration of spermidine had anti-inflammatory effect by inhibiting the expression of inflammatory cytokines, but high-dose spermidine could also induce inflammation.

Key words: spermidine, thymus index, spleen index, inflammatory cytokines

CLC Number: