Applied Microscopy

Korean Society of Microscopy (한국현미경학회)
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Ultrastructural Change of the Bile Duct Fibroblast at Infected Rat with Clonorchis sinensis

간흡충에 감염된 실험쥐 담관 섬유모세포의 미세구조적 변화

  • 김수진 (한림대학교 자연과학대학 생물학과) ;
  • 민병훈 (한림대학교 자연과학대학 생물학과)
  • Published : 2004.06.01
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Abstract

In this study, ultrastructural change of the bile duct fibroblast at infected rat with Clonorchis sinensis, and the distribution of lectin receptors and actin protein in cultured bile duct infected with Clonorchis sinensis. It explored using colloidal gold label complex with lectin WGA purified from wheat germ (Triticum vulgaris) and anti actin antibody purified actin (43 kDa) isolated from chicken back muscle. The lectin WGA with protein A gold complex labeled sections of the cultured fibroblast revealed gold particles specifically distributed on the multi vesicular form Golgi complex and cell surface of the fibroblast. The actin antibody with protein A gold complex labeled sections of the cultured fibroblast revealed gold particles specifically distributed on the cytoplasm of the fibroblast. Labeling of cultured fibroblast in rat bile duct infected with Clonorchis sinensis was then quantified and compared to that of cultured Fibroblast in Rat Bile duct. These results indicate that lectin WGA receptors are located in the multi vesicular form Golgi complex in the cytoplasm to the cytoplasmic process of the Rat bile duct fibroblast infected with Clonorchis sinensis. Therefore, the GlcNAc and NeuNac regions on the cell surface and cytoplasmic process appear to be functionally associated with cell-recognition and protection from other cell of the tissue, and linked with secretion and exocytosis of the fibroblst cytoplasm. GlcNAc and NeuNAc product in the multi vesicular form Golgi complex then it is transported to cell surface. Actin protein is many appears that infected fibroblast rather than normal fibroblast. The fibroblast of infected with Clonorchis sinensis are against of the physical and chemical stimulation. Then development of cytoplasmic process is relative some stimulation.

동물의 결합조직에 분포하고 있는 섬유모세포 (fibroblast)는 결합조직을 구성하는 세포의 한 종류로서 세포질 돌기들이 잘 발달된 형태적 특징이 있는 것으로 실험쥐 담관의 경우 간흡충 등의 기생충에 의하여 물리, 화학적 상해를 받았을 때 세포변이가 유발될 뿐만 아니라, 담관 암세포로 전이되기도 하는 것으로 알려져 있다. 따라서 저자 등은 실험쥐의 담관이 기생충에 의한 상해를 받았을 때 섬유모세포의 세포 표면과 세포질의 변화를 알아보고자 실험쥐 담관에서 섬유모세포를 분리하여 전자현미경으로 확인하고 다음과 같은 결과를 얻었다. 대조군 실험쥐 담관의 섬유모세포들은 일반적인 형태로 세포돌기, 세포표면 및 세포질을 구성하고 있었으나 간흡충 감염군 실험쥐 담관의 섬유모세포는 미세소관에 의한 세포질 돌기들이 다수 발달하고 다양한 종류의 포낭형 조면소포체 그리고 세포질에 전자밀도가 높은 다양한 액포, 높은 밀도의 리보좀을 포함하는 조면소포체, 다양한 형태의 과립 및 많은 수의 미세섬유가 관찰되는 형태적 변화가 관찰되었다. 간흡충에 감염된 담관의 섬유모세포는 간흡충에 의하여 상해 받은 세포가 물리화학적 자극에 의한 적응으로 단백질 합성이 증가하며 multi-vesicular 형태의 Golgi복합체가 생성되고, 세포질돌기 형성하는 것으로 확인되었다. 세포질에 광범위하게 분포하는 multi-vesicle은 당말단인 sialic acid를 포함하고 세포내에서 세포표면의 미세융모에 이르기까지 이동하는 것으로 확인되었다. 이상의 결과로 간흡충 감염 실험쥐로부터 분리된 섬유모세포는 actin단백으로 구성된 세포돌기가 잘 발달하고, 세포내 조면소포체에서 형성된 단백질이 Golgi복합체에서 당말단인 sialic acid로 전환되어 세포표면에 분포하게 된다. 이는 간흡충 감염으로 물리 화학적 자극 자극받은 섬유세포가 미세구조적 변화를 유발하는 것으로 확인되었다.

Keywords

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