IL-6 mRNA Expression in Mouse Peritoneal Macrophages and NIH3T3 Fibroblasts in Response to Candida albicans

  • Lee, Young-Sun (Department of Applied Microbiology, College of Natural Resources, Yeungnam University) ;
  • Kim, Hee-Sun (Department of Microbiology, College of Medicine, Yeungnam University) ;
  • Kim, Sung-Kwang (Department of Microbiology, College of Medicine, Yeungnam University) ;
  • Kim, Sang-Dal (Department of Applied Microbiology, College of Natural Resources, Yeungnam University)
  • 발행 : 2000.02.01

초록

Despite extensive investigation, the mechanisms of immune responses to Candida albicans infection remain poorly understood. Using RT-PCR and Northern blot analysis, this study demonstrates the pattern of IL-6 mRNA expression in thioglycollate-elicited mouse peritoneal macrophages and NIH3T3 fibroblasts (NIH3T3) in response to C. albicans. The expression of IL-6 mRNA was detectable in both cell types. However, IL-10 mRNA was only expressed in the macrophages, and IL-4 mRNA was not expressed in neither of the two cell types. Although the phagocytic function of the macrophages was inhibited by Cytochalasin D, these macrophages could still induce the expression of IL-6mRNA. These findings indicated that the phagocytosis of C. albicans is not pivotal in the induction of IL-6 mRNA expression. A Northern blot analysis was used to investigate the dose effects of C. albicans and time-course kinetics of IL-6 mRNA expression at various time points. IL-6 mRNA was expressed in a dose-independent manner, and was detectable as early as 30min after C. albicans stimulation. It was evenly sustained up to 4h. These results can contribute to understanding the mechanism of IL-6 mRNA expression in macrophages and NIH3T3 cells in response to C, albicans.

키워드

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