Specific cell-mediated cytotoxicity against a virus-infected syngeneic cell line in isogeneic ginbuna crucian carp

Tomonori Somamoto, Teruyuki Nakanishi, Nobuaki Okamoto

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

In the present study, we attempted to determine whether virus-specific cell-mediated cytotoxicity occurs in fish. Experiments were conducted with clonal ginbuna crucian carp (Carassius auratus langsdorfii) (S3n strain), and the syngeneic cell line (CFS). Two infectious viruses were used: infectious pancreatic necrosis virus (IPNV) and eel virus from America (EVA). Peripheral blood leukocytes, which consisted almost entirely (95%) of lymphocytes and thrombocytes, from S3n ginbuna immunized with virus-infected CFS cells lysed the virus-infected CFS cells (immunogen) more completely than CFS cells infected with a different virus (non-immunogen). This specific cell-mediated cytotoxicity of ginbuna against virus-infected CFS cells was efficiently induced as a result of in vivo secondary immunization. A significant specific cytotoxic activity peaked during 7-10 days after the secondary immunization. In addition, effector cells immunized with IPNV-infected syngeneic cells did not lyse IPNV-infected xenogeneic cells. These results support the hypothesis that fish exhibit specific cytotoxicity against virus-infected cells, resembling the specific cytotoxicites of higher vertebrates. Copyright (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)633-640
Number of pages8
JournalDevelopmental and Comparative Immunology
Volume24
Issue number6-7
DOIs
Publication statusPublished - Sep 1 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Immunology
  • Developmental Biology

Fingerprint Dive into the research topics of 'Specific cell-mediated cytotoxicity against a virus-infected syngeneic cell line in isogeneic ginbuna crucian carp'. Together they form a unique fingerprint.

  • Cite this