Biomolecules & Therapeutics

The Korean Society of Applied Pharmacology (한국응용약물학회)
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Inhibitory Effects of Simazine on Various Functions of Peritoneal Macrophages

Simazine이 복강 대식세포의 기능에 미치는 영향

  • Published : 2002.12.01
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Abstract

Triazine herbicide has been reported to directly suppress the immune response. In the present study, we examined various functions of murine peritoneal macrophages that were isolated and stimulated with LPS after simazine (300 and 600 mg/kg body weight), a triazine herbicide, was administered every day for 4 weeks. Simazine decreased the capacity of phagocytosis, compared to those of carboxymethylcellulose (CMC)-treated control group. In addition, the production of NO and TNF-$\alpha$ was decrcased in macrophages of simazinetreated mice. However, the production of hydrogen peroxide ($H_{2}O_{2}$) was not altered. In vitro tumoricidal activity of in vivo simazine-treated macrophages was reduced against target cell. B 16 melanoma. Taken together, these results suggested that simazine might have the immunosuppressive effect on macrophages after in vivo exposure, which was related to the reduction of tumoricidal activity.

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References

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