PC12 세포주에서 Translationally Controlled Tumor Protein에 의한 Mitogen-activated Protein Kinases 활성 조절

Regulation of Mitogen-activated Protein Kinases by Translatoinally Controlled Tumor Protein in PC12 Cells

  • 김미연 (이화여자대학교 약학대학) ;
  • 김미영 (이화여자대학교 약학대학)
  • Kim, Mi-Yeon (College of Pharmacy, Center for Cell Signalling & Drug Discovery Research, Ewha Womans University) ;
  • Kim, Mi-Young (College of Pharmacy, Center for Cell Signalling & Drug Discovery Research, Ewha Womans University)
  • 투고 : 2010.08.30
  • 심사 : 2010.09.16
  • 발행 : 2010.10.31

초록

Translationally controlled tumor protein (TCTP) activates basophils to release histamine and causes chronic inflammation. It was also reported that TCTP significantly reduced in brain of Alzheimer's Disease and Down Syndrome as compared to normal person, suggesting that TCTP might be involved in cognitive function. We wondered whether TCTP could act as a general inducer in neurotransmitters release in brain. We, therefore, investigated the role of TCTP in PC12 cell line which expressed neuronal properties. We found that TCTP could activate JNK, and the activity was inhibited by pretreatment of dicoumarol, a JNK inhibitor. However, TCTP could not activate ERK that has known to be involved in neurotransmitter release. These suggest TCTP did not participate in neurotransmitter release from PC12 cells, and TCTP might not be a general inducer in neurotransmitter release.

키워드

참고문헌

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