An immunohistochemical study of endocrine cells in the gut of the Prussian carp, Carassius auratus |
Hyeung-Sik Lee1, Sae-Kwang Ku2, Gi-Dae Park3, Jae-Hyun Lee3 |
1Department of Biology, Faculty of Natural Sciences, Kyungsan University 2Pharmacology & Toxicology Lab., Central Research Laboratories, Dong-Wha Pharm Ind. Co. 3Department of Histology, College of Veterinary Medicine, Kyungpook National University |
붕어(Carassius auratus) 장 내분비세포에 관한 면역조직화학적 연구 |
이형식1, 구세광2, 박기대3, 이재현3 |
1경산대학교 자연과학부 생물학과 2동화약품(주) 중앙연구소 약리독성연구실 3경북대학교 수의과대학 조직학교실 |
|
Abstract |
The regional distribution and relative frequency of neurohormonal peptides-producing cells were demonstrated in the gut of the stomachless teleost, the Prussian carp, Carassius auratus Linnaeus, using 10 types of specific antisera raised against mammalian regulatory peptides. The gut of the Prussian carp was divided into five portions from proximal to distal (Segments I~V). Most of immunoreactive cells in the epithelial lining portion, between epithelial cells, were generally spherical or spindle shape having long cytoplasmic process that reached to the lumen (open typed cell) while cells showing round in shape (close typed cell) were found in the basal portions of epithelial lining occasionally. Somatostatin-, cholecystokinin (CCK)-8- and pancreatic polypeptide (PP)- immunoreactive cells were observed in this study. However, no serotonin-, glucagon-, chromogranin A-, secretin-, vasoactive intestinal peptide (VIP)-, substance P- and bombesin-immunoreactive cells were found. Somatostatin-immunoreactive cells were restricted to most proximal segments of the gut (Segment I) with rare frequency and CCK-8-immunoreactive cells were demonstrated in the proximal segments of the gut (Segments I and II) with a few to rare frequencies. In addition, pancreatic polypeptide-immunoreactive cells were demonstrated in the proximal to middle segments (Segments I~III) with moderated to rare frequencies. In conclusion, the distribution and relative frequency of these immunoreactive cells are well corresponded to the previous reports in stomachless teleost but somewhat peculiar patterns are also detected. |
Key Words:
Imnnmoreactive cell, gut, Prussian carp, stomachless teleost, Carassius auratus, regulatory peptides |
|