An immunohistochemical study on the gastro-entero-pancreatic endocrine cells of the cat-shark, Scyliorhinus torazame

두툽상어 (Scyliorhinus torazame)의 위장관 내분비세포에 관한 면역조직화학적 연구

  • Lee, Hyeung-sik (Department of Biology, Kyungsan University) ;
  • Lee, Jae-hyun (College of Veterinary Medicine, Kyungpook National University)
  • Received : 1995.04.13
  • Published : 1995.07.31


The regional distribution and relative frequencies of gastrointestinal endocrine cells were studied immunohistochemically in the GIT of the cat-shark. Five kinds of endocrine cells were identified in this study. Mostly these cells were of open types, except for glucagon-, BPP- and somatostatin-immunoreactive cells in the stomach which seemed to be of closed type. 5-HT-immunoreactive cells were detected throughout the GIT, and were more freguent than of the other regions. Glucagon-and BPP-immunoreactive cells were demonstrated in the entire GIT except for the duodenum an the rectum, and occurred in various frequencies. A few numbers of Gas/CCK-immunoreactive cells were restricted to the duodenum. Somatostatin-immunoreactive cells were distributed in the whole GIT, and were a few in numbers in the stomach and rare in the intestine, respectly. These results suggest that the pattern of the regional distribution is rather similar to that reported fur previously, but relative number was less frequent than that of other species.


Supported by : Kyungsan University