TAILIEUCHUNG - Báo cáo khoa học: "Histochemistry of Six Lectins in the Tissues of the Flat Fish Paralichthys olivaceus"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Histochemistry of Six Lectins in the Tissues of the Flat Fish Paralichthys olivaceus | J. Vet. Sci. 2002 3 4 293-301 JOURNAL OF Veterinary Science Histochemistry of Six Lectins in the Tissues of the Flat Fish Paralichthys olivaceus Kyung-Sook Jung1 Mee-Jung Ahn1 Yong-Duk Lee1 Gyung-Min Go2 and Tae-Kyun Shin1 Department of Veterinary Medicine Graduate School Cheju National University Jeju 690-756 Republic of Korea 2Jeju Province Fisheries Resources Research Institute Jeju 699-810 Republic of Korea Received July 20 2002 Accepted November 20 2002 Abstract Lectins are glycoproteins that specifically bind carbohydrate structures and may participate in the biodefense mechanisms of fish. In this study the binding of three lectins Dolichos biflorus agglutinin DBA soybean agglutinin SBA Bandeiraea sim-plicifolia BS-1 isolectin B4 Triticum vulgaris WGA Arachis hypogaea PNA and Ulex europaeus UEA-I were studied in the gill live r intestine kidney heart and spleen of the flat fish Paralichthys olivaceus. DBA was detected in intestinal m ucous cells as well as in gill epithelial and m ucous cells. It was w eakly detected in ren al tubule epithelial ce lls and in bile duct epithelial cells. The strong SBA staining was seen in the intestinal club cells in bile duct epithelial ce lls and ren al tubule epithelial cells. There were intense p ositive re actions for isolectin B4 in gill epithelial and m ucous cells and the stron g isolectin B4 stainin g was seen in epithelial cells of the bile d u c t a n d i n t e s t i n e . Th e s t ro n g WG A s t a i n i n g w a s s e e n in the gill mucosal cells sinusoid ren al tubule epithelial cells and m ucosal cells of the intestine. UEA-I was detected in the gill epithelial and mucosal cells bile duct epithelial cells and ren al tubular epithelial cells. These re sults suggest that the six lectins examined were localized in the cove rin g epithelia of the various organs of the flat fish and they may participate in the biodefense m echanism of the intra body surface in which is exposed to various antigens. Key words lectin .

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