Impaired bacterial proliferation, and compromised immune response in diabetic db/db mice infected with Brucella abortus
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- 2016.04.02
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서지정보
ㆍ발행기관 : 경상대학교 농업생명과학연구원
ㆍ수록지정보 : 농업생명과학연구 / 47권 / 2호
ㆍ저자명 : Dae-Geun Kim, Jin-Ju Lee, Hannah Leah Simborio, Alisha Wehdnesday Bernardo Reyes, Wongi Min, Hu-Jang Lee, Hong-Hee Chang, Suk Kim
영어 초록
Brucellosis is an important bacterial zoonosis in humans and domestic animals. Brucella spp. are taken up, and survive within non-professional and professional phagocytes. In common belief, diabetes mellitus increases susceptibility to pathogenic infection. In this study, Brucella (B.) abortus was inoculated into a diabetic animal model, db/db mice, in order to show the course of brucellosis in diabetic state. The liver proliferation, bacterial burden of the liver, level of cytokines in serum and macrophage migration into liver, were investigated at 14 days post-infection. In comparison with the uninfected control mice, the results revealed that the weight of the liver of infected db/db mice was higher but with lower bacterial load in this organ. The level of MCP-1 mRNA expression in the liver was lower, the levels of IL-12p70, IL-10, TNF-α and IFN-γ in serum was significantly higher and the macrophages migration was significantly lower in infected mice than in the control group. In conclusion, this present study suggested that MCP-1 suppression by B. abortus infection may inhibit the macrophages migration, and consequently may induce to abrogate the bacterial survival in db/db mouse liver. Furthermore, the increased inflammatory cytokines may contribute to inhibition of B. abortus proliferation in diabetic mice.
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