The Regulatory Effect of Zhengan Xifeng-tang on Pro-inflammatory Cytokine in Human Brain Astrocytes

인간 뇌 성상세포에서 진간식풍탕의 사이토카인 조절 효과

  • Ryu Hyun Hee (Department of International Medicine of Oriental Medicine Hospital, Wonkwang University) ;
  • Lee Seoung Geun (Department of International Medicine of Oriental Medicine Hospital, Wonkwang University) ;
  • Lee Key Sang (Department of International Medicine of Oriental Medicine Hospital, Wonkwang University)
  • 유연희 (원광대학교 군포한방병원 내과) ;
  • 이성근 (원광대학교 군포한방병원 내과) ;
  • 이기상 (원광대학교 군포한방병원 내과)
  • Published : 2004.04.01

Abstract

Brain cells produce cytokines and chemokines during the inflammatory process of many neuronal diseases both in animal models and in patients. Inflammatory cytokines are the main responsible for the onset of inflammatory cascade. During the past decade, a growing corpus of evidence has indicated an important role of these cytokines in the development of brain damage. ZhenganXifeng-tang (ZGXFT) is a Korean herbal prescription, which has been successfully applied for the treatment of various neuronal diseases. However, its effect in experimental models remains unknown. Astrocytes are predominant neuroglial cells of the central nervous system and are actively involved in cytokine-mediated events in inflammatory disease. An inflammatory response associated with β-amyloid (Aβ) and interleukin (IL)-1β is responsible for the pathology of inflammation disease. To investigate the biological effect of ZGXFT, the author examined cytotoxicity, effect of cytokines (IL-6 and IL-8) secretion and expression of cyclooxygenase-2 (COX-2) on human astrocytoma cell line U373MG stimulated with IL-1β plus M fragment 25-35 (Aβ [25-35]). ZGXFT by itself had no effect on cell viability on human astrocytoma cells. The secretion of IL-6 and IL-8 was inhibited by pre-treatment with ZGXFT in human astrocytoma cells. In addition, the expression of COX-2 was induced by IL-1β plus AB[25-35] and was partially inhibited by treatment with ZGXFT. The author demonstrates the regulatory effects of inflammatory reactions by ZGXFT in human astrocytes for the first time and suggest the anti-inflammatory effect of ZGXFT may reduce and delay pathologic events of inflammatory disease.

Keywords

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