Korean Journal of Veterinary Research (대한수의학회지)

The Korean Society of Veterinary Science (대한수의학회)
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Immunohistochemical study of the pancreatic endocrine cells in the ICR mice

ICR 마우스 췌장 내분비세포에 대한 면역조직화학적 연구

  • Ku, Sae-kwang (Pharmacology & Toxicology Lab., Central Research Laboratories, Dong-Wha Pharm. Ind. Co.) ;
  • Lee, Hyeung-sik (Department of Biology, Faculty of Natural Sciences, Kyungsan University) ;
  • Lee, Jae-hyun (Department of Histology, College of Veterinary Medicine, Kyungpook National University)
  • 구세광 (동화약품 (주) 중앙연구소 약리독성연구실) ;
  • 이형식 (경산대학교 자연과학부 생물학과) ;
  • 이재현 (경북대학교 수의과대학 조직학교실)
  • Accepted : 2002.01.09
  • Published : 2002.03.25
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Abstract

The regional distribution and relative frequency of the pancreatic endocrine cells in the ICR mouse were studied by immunohistochemical (PAP) method using four types of specific antisera against insulin, glucagon, somatostatin and human pancreatic polypeptide (PP). The pancreas of mice could be divided into three portions; pancreatic islets, exocrine and pancreatic ducts. Pancreatic islets, furthermore, were subdivided into three regions (central, mantle and peripheral region) according to their located types of immunoreactive cells. In the pancreatic islet portions, insulin-immunoreactive cells were located in the central and mantle regions but most of somatostatin-, glucagon- and PP-immunoreactive cells were detected in the mantle and peripheral regions with various frequencies. In addition, PP-immunoreactive cells were also found in the central regions of pancreatic islets of ICR mouse. In the exocrine portions, all four types of immunoreactive cells were demonstrated in the ICR mouse. In the pancreatic duct portions, insulin- and glucagon-immunoreactive cells were situated in the epithelial lining of ICR mouse with a few and rare frequencies, respectively. In addition, rare PP-immunoreactive cells were also demonstrated in the subepithelial regions of the pancreatic duct. However, no somatostatin-immunoreactive cells were demonstrated.

ICR 마우스 췌장에 존재하는 내분비세포의 부위별 분포 및 상대적 빈도를 4 종류의 항혈청 즉, insulin, glucagon, somatostatin 및 human pancreatic polypeptide (PP)을 사용하여 면역조직화학적 방법으로 관찰하였다. 마우스의 췌장은 췌장섬, 외분비부 및 췌관의 3 부분으로 구별되었으며, 췌장섬은 이들 면역반응세포들의 출현 부위에 따라 다시 중심부분, mantle부분 및 가장자리부분으로 다시 세분되었다. 췌장섬의 경우, insulin 면역반응세포들은 주로 췌장섬의 중심부분과 mantle 부분에서 주로 관찰되었으나, somatostatin, glucagon 및 PP 면역반응세포들은 다양한 출현빈도를 나타내며 주로 mantle부분과 가장자리부분에 걸쳐 관찰되었다. 또한 극소수의 PP 면역반응세포들은 췌장섬의 중심부분에서도 관찰되었다. 외분비부에서도 insulin, glucagon, somatostatin 및 PP 면역반응세포들 모두 관찰되었으며, 주로 외분비 샘포 세포 사이공간에서 관찰되었다. 췌관에서는 insulin 및 glucagon 면역반응세포들이 소수 또는 극소수의 빈도로 췌관 상피세포 사이공간에서 관찰되었으며, 극소수의 PP 면역반응세포들 역시 췌관상피 아래부위에서 관찰되었으나, somatostatin 면역반응세포들은 이 부위에서 관찰되지 않았다.

Keywords

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