Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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Animal Model for Regeneration of Olfactory Sensory Neurons

후각신경세포의 손상 및 재생 연구모델의 융합연구

  • Jeong, Yun-Mi (Department of Biology, Chungnam National University) ;
  • Park, Jong-Su (Department of Biology, Chungnam National University) ;
  • Kim, Cheol-Hee (Department of Biology, Chungnam National University) ;
  • You, Kwan-Hee (Department of Biology, Chungnam National University)
  • Received : 2016.03.31
  • Accepted : 2016.04.12
  • Published : 2016.04.30
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Abstract

The olfactory system is an important model for the study of neuronal degeneration and regeneration, including neuronal diseases. When the olfactory sensory neurons are damaged by nerve injury or are exposed to environmental factors, they degenerate and are replaced by regenerating neurons. To monitor neuronal degeneration in living animal, we established an olfactory-specific GFP transgenic zebrafish. The effects of Triton X-100 or sodium acetate on the olfactory system were examined. A significant decrease in the number of GFP-positive olfactory sensory neurons was observed after chemical lesion. We found a recovery of GFP-positive neurons by 2 days posttreatment. From these results, we expect that further studies of olfactory degeneration and regeneration using this transgenic zebrafish will provide important advances for the study of neuronal degeneration and regeneration.

후각기관은 주변 환경의 다양한 화학물질을 감지하는 기관으로 생존, 종족번식에서 감정에 이르기까지 다양하고 중요한 역할을 하고 있다. 유전적, 환경적 등 다양한 요소에 의해 후각장애가 발생할 수 있으며, 일시적인 경우에는 약물치료 등으로 회복될 수 있지만, 신경세포에 문제가 생긴 영구적인 손상의 경우는 치료가 어렵다. 따라서, 신경세포의 사멸을 억제하거나 재생을 유도하는 치료제의 개발이 필요하다. 본 연구에서는 후각신경세포 특이적으로 GFP 형광단백질을 발현하는 형질전환동물을 제작하여 생체 내 후각신경세포를 관찰하고자 하였다. 또한, 다양한 화학물질을 처리하여 후각신경세포 손상을 인위적으로 유도할 수 있는 방법을 고안하였고, 후각신경세포의 손상 및 재생 과정을 실시간으로 모니터링하였다. 본 연구를 통해 확립된 후각신경세포의 손상 및 재생 모니터링 시스템은 향후 후각신경세포 재생 메커니즘 연구 및 치료제 개발에 유용하게 사용될 것으로 기대된다.

Keywords

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