생명과학회지 (Journal of Life Science)

  • 제18권9호
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  • Pages.1202-1206
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  • 2008
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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만성 폐질환인 폐이형성증을 보이는 baboon 폐조직에 Dendritic-like cell의 축적

Dendritic-like Cells Accumulate in BPD Lung of Baboon

  • Lee, Jong-Hwan (Department of Biotechnology and Bioengineering, Dong-eui University) ;
  • Kim, Kwang-Hyeon (Department of Life Science & Biotechnology, Dong-eui University)
  • 발행 : 2008.09.30
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초록

본 연구에서 정상적인 baboon의 흉선조직 및 폐조직에서 HLA-DR과 PGP9.5항원에 대한 반응성을 나타내는 수지상세포 형태의 세포가 축적되는 것을 보았다. 하지만, 이런 세포들은 baboon 이 BPD즉 폐이형성증에 걸리게 되면 사라진다는 것을 확인하였다. 그리고 140일 제태기간보다 125일 제태 기간을 보낸 미성숙 baboon이 HLA-DR을 가지는 세포가 더 많아 진다는 것을 관찰할 수 있었고 이로 인해 BPD동물모델을 구축하는데 125일 제태 기간을 보낸 동물이 훨씬 적합하다는 것을 알았다. 또한 bombesin의 항체인 2A11을 처리한 baboon (125d-14d/PRN)의 폐조직에서는 정상수준의 HLA-DR positive세포들이 관찰되었다. 더욱이, Baboon의 흉선으로부터 분리한 thymocyte로 bombesin에 대한 chemotaxis를 수행한 결과 세포이동 반응성을 보였다. 이러한 결과들은 생체 내 BLP들을 차단하면 BPD에 의해 야기된 폐이형성증을 막을 수 있고 2A11항체가 수동 면역제로 폐이형성증을 치료할 수 있는 치료제로써의 가능성을 제시하는 것이다.

The present investigation demonstrates HLA-DR and PGP9.5 double positive cells accumulate thymus cortical region in normal baboon thymus and baboon lung. But, these cells disappeared in thymus and lung of bronchopulmonary dysplasia (BPD) animals. 125d GC animal model is more suitable for BPD than 140d GC animal. Anti-bombesin antibody, 2A11 treated baboon recover normal level of HLA-DR positive cells from BPD animal. In addition, thymocytes show responsiveness for bombesin. These observation suggest that blocking BLPs protects a chronic lung injury by BPD and 2A11 is possible agent for passive therapy of BPD.

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참고문헌

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