흰쥐황체에서 MCP-1과 큰포식세포아형의 역할에 관한 면역조직화학적 연구
Immunohistochemical Study on Role of the Monocyte Chemoattractant Protein-1 and Macrophage Subpopulations in the Rat Corpora Luteum
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초록
큰포식세포나 혈관의 내피세포 등에서 분비되는 monocyte chemoattractant protein-1(MCP-1)은 큰포식세포의 활성을 조절하고 황체의 용해시기에는 용해를 개시, 촉진시키는 작용을 하는 것으로 알려져 있다. 그러나 아직 임신황체나 출산 후의 황체의 발달과 유지에 대한 MCP-1의 작용기전은 확실히 알려져 있지 않다. 난포발달과정에서 큰포식세포의 역할을 알아보기 위해서 흰쥐를 실험동물로 임신시기별, 출산 후 황체에서 TUNEL염색, ED1, ED2 및 MCP-1에 대한 면역조직화학을 실시하였다. 출산 후 황체에서 큰포식세포의 수가 의미 있게 증가하였으며, 큰포식세포에 대한 ED1, ED2의 면역반응성이 증가하였고, MCP-1의 면역반응성도 크게 증가하였다. 본 연구의 결과 출산 후 황체에서는 큰포식세포가 주로 탐식작용을 하게 되지만, 임신황체에서는 황체의 구조와 기능을 유지하는데 주로 관여할 것으로 생각된다.
Abstract
Monocyte chemoattractant protein-1(MCP-1) is released from the macrophages and endothelial cells, regulated luteotropic and luteolytic actions of macrophages and induced luteolysis. However, the mechanisms of MCP-1 on the development and maintenance of pregnant corpora lutea are thoroughly unknown. In this experiment, TUNEL stain, ED1, ED2, and MCP-1 immunohistochemistry on the corpora lutea of pregnant rats were carried out to reveal the role of macrophages in the developing corpora lutea. In the postpartum corpora lutea, the number of macrophages was increased significantly, and the intensity of ED1 and ED2 immunoreactivity in macrophages were increased moderately, and MCP-1 immunoreactivity was also increased. In conclusion, macrophages in the postpartum corpora lutea may exert phagocytic action mainly, and the macrophages in the pregnant corpora lutea maintain the structure and function of lutein cells.
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