Immunohistochemical localization of rhamnose-binding lectins in the steelhead trout (Oncorhynchus mykiss)

H. Tateno, T. Yamaguchi, T. Ogawa, K. Muramoto, T. Watanabe, H. Kamiya, M. Saneyoshi

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

The localization of three L-rhamnose-binding lectins named STL1, STL2, and STL3 from eggs of steelhead trout (Oncorhynchus mykiss) was analyzed by indirect immunohistochemical staining with specific antisera against individual lectins. In early previtellogenic oocyte, STL1 was localized not only in the cortical vesicles, but also in the plasma membrane and germinal vesicle. On the other hand, STL2 and STL3 were localized only in the cortical vesicles. In pre-fertilization mature egg, STLs were localized in a thin layer of cortical granules at the cytoplasmic side of the plasma membrane. STLs were accumulated on the surface of cytoplasm and inner membrane 30 min after fertilization. The strong staining with anti-STL1 antiserum was observed in several tissues and cells of the steelhead trout, such as spleen, thrombocytes, and blood leukocytes, but not erythrocytes. STL1 was also identified in exocrine cells, such as goblet cells of intestine and mucous cells of gill. These results indicate that the multiple lectins found in eggs of the steelhead trout play physiological roles not only in eggs, but also in various cells related to the innate immunity.

Original languageEnglish
Pages (from-to)543-550
Number of pages8
JournalDevelopmental and Comparative Immunology
Volume26
Issue number6
DOIs
Publication statusPublished - 2002 Jun 5

Keywords

  • Egg
  • Hemagglutinin
  • Immunofluorescence
  • Immunohistochemistry
  • L-Rhamnose
  • Lectin
  • Oocyte
  • Steelhead trout

ASJC Scopus subject areas

  • Immunology
  • Developmental Biology

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