The Effects of Venlafaxine on Neurite Growth of PC12 Cells

벤라팍신이 PC12 세포의 신경돌기 성장에 미치는 영향

  • Oh, Hong-Seok (Department of Neuropsychiatry, College of Medicine and Institute of Mental Health, Hanyang University) ;
  • Choi, Joon-Ho (Department of Neuropsychiatry, College of Medicine and Institute of Mental Health, Hanyang University) ;
  • Lee, Jun-Seok (Department of Neuropsychiatry, College of Medicine, Kwandong University, Myongji Hospital) ;
  • Lee, Joon-Noh (Department of Neuropsychiatry, College of Medicine, Hanyang University and Seoul National Hospital) ;
  • Choi, Mi-Ran (Department of Biochemistry and Molecular biology, College of Science, Hanyang University) ;
  • Chai, Young-Gyu (Department of Biochemistry and Molecular biology, College of Science, Hanyang University) ;
  • Kim, Seok-Hyeon (Department of Neuropsychiatry, College of Medicine and Institute of Mental Health, Hanyang University) ;
  • Yang, Byung-Hwan (Department of Neuropsychiatry, College of Medicine and Institute of Mental Health, Hanyang University)
  • 오홍석 (한양대학교 의과대학 신경정신과학교실 및 정신건강연구소) ;
  • 최준호 (한양대학교 의과대학 신경정신과학교실 및 정신건강연구소) ;
  • 이준석 (관동대학교 의과대학 명지병원 신경정신과학교실) ;
  • 이준노 (한양대학교 의과대학 신경정신과학교실 및 국립서울병원) ;
  • 최미란 (한양대학교 이과대학 생화학 및 분자생물학과) ;
  • 채영규 (한양대학교 이과대학 생화학 및 분자생물학과) ;
  • 김석현 (한양대학교 의과대학 신경정신과학교실 및 정신건강연구소) ;
  • 양병환 (한양대학교 의과대학 신경정신과학교실 및 정신건강연구소)
  • Published : 2003.11.30

Abstract

Objectives:The purpose of this study is to examine the effects of venlafaxine, one of novel antidepressant drugs, on neurite growth in PC12 cells. Methods:PC12 cells were cultured with NGF for eight days. Then different concentrations($0{\mu}M$, $1{\mu}M$, $5{\mu}M$) of venlafaxine were mixed with cultured PC12 cells. After 24 hours and 48 hours of culture, we compared the effects of venlafaxine on the total length of neurites of cultured PC12 cells between no venlafaxine treated group($0{\mu}M$) and venlafaxine treated groups($1{\mu}M$ and $5{\mu}M$). Additionally, we studied the concentration-dependent effect of venlafaxine on differentiation in PC12 cells. Results:Experimental results showed that 1) the mean length of neurites in $1{\mu}M$ and $5{\mu}M$ venlafaxine treated group was more increased than no venlafaxine treated group(p=0.002). 2) the length of neurite in $5{\mu}M$ venlafaxine treated group was more elongated than $1{\mu}M$ venlafaxine treated group(p=0.046). 3) the length of neurite in $6{\mu}M$ venlafaxine treated group was more elongated than all the other concentrations in our experiment. Above $6{\mu}M$, the length of neurite was shortened in inverse proportion to the concentration of venlafaxine. Conclusions:This results suggest that venlafaxine, one of novel antidepressant drugs, promotes the differentiation of neuron. This study is believed to be a first step toward understanding the molecular and cellular mechanisms of antidepressant treatment.

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