The Journal of Internal Korean Medicine (대한한방내과학회지)

The Society of Internal Korean Medicine (대한한방내과학회)
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Protective Effects of Chungsimyeonja-eum on Glutamate-induced Apoptosis in C6 Glial Cells

Glutamate로 유도된 C6 glial 세포 자멸사에 대한 청심연자음(淸心蓮子飮)의 보호효과

  • Ko, Seok-Jae (Dept. of Internal Medicine, College of Oriental Medicine, Won-Kwang University) ;
  • Shin, Yong-Jeen (Dept. of Internal Medicine, College of Oriental Medicine, Won-Kwang University) ;
  • Jang, Won-Seok (Dept. of Internal Medicine, College of Oriental Medicine, Won-Kwang University) ;
  • Ha, Ye-Jin (Dept. of Internal Medicine, College of Oriental Medicine, Won-Kwang University) ;
  • Lee, Seon-A (Dept. of Internal Medicine, College of Oriental Medicine, Won-Kwang University) ;
  • Ahn, Min-Seob (Dept. of Acupuncture & Moxibution College of Oriental Medicine, Won-Kwang University) ;
  • Kwon, Oh-Sang (Dept. of of Meridian & Acupoint, College of Oriental Medicine, Won-Kwang University) ;
  • Shin, Sun-Ho (Dept. of Internal Medicine, College of Oriental Medicine, Won-Kwang University)
  • 고석재 (원광대학교 한의과대학 내과학교실) ;
  • 신용진 (원광대학교 한의과대학 내과학교실) ;
  • 장원석 (원광대학교 한의과대학 내과학교실) ;
  • 하예진 (원광대학교 한의과대학 내과학교실) ;
  • 이선아 (원광대학교 한의과대학 내과학교실) ;
  • 안민섭 (원광대학교 한의과대학 침구학교실) ;
  • 권오상 (원광대학교 한의과대학 경락경혈학교실) ;
  • 신선호 (원광대학교 한의과대학 내과학교실)
  • Published : 2010.03.31
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Abstract

Objective : The water extract of Chungsimyeonja-eum (CSYJE) has traditionally been used in treatments of heart diseases and brain diseases in Oriental medicine. However, little is known about the mechanism by which CSYJE protects neuronal cells from injury damages. Therefore, in this study we attempted to elucidate the mechanism of the cytoprotective effect of the CSYJE extract on glutamate-induced C6 glial cell death. Methods : Cultured cells were pretreated with CSYJE and exposed to glutamate, cell damage was assessed by using MTT assay and propidium iodide (PI), probe 2',7'-dichlorofluorescein diacetate (DCF-DA) staining. Western blotting was performed using anti-procaspase-3 and anti-PARP, respectively. Result : We determined the elevated cell viability by CSYJE extract on glutamate-induced C6 glial cell death. Glutamate induced DNA fragmentation on C6 glial cells but pre-treatment with CSYJE inhibited DNA fragmentation. One of the main mediators of glutamate-induced cytotoxicity was known to generation of reactive oxygen species (ROS). Pre-treatment with CSYJE inhibited this ROS generation from glutamate-stimulated C6 glial cells. Also, we identified that the ROS-induced DCF-DA green fluorescence was reduced by CSYJE pre-treatment. The critical markers of apoptotic cell death are the cleavages of procaspase-3 protease and PARP proteins, so we checked the expression level and cleavages of procaspase-3 protease and PARP proteins. Glutamate-treated C6 glial cells showed the cleavages of procaspase-3 protease and PARP proteins and followed the reduction of expression of these proteins. Conclusion : These findings indicate that CSYJE may prevent cell death from glutamate-induced C6 glial cell death by inhibiting the ROS generation and procaspase-3 and PARP expression.

Keywords

References

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