In vitro neutralization by monoclonal antibodies against yellow grouper nervous necrosis virus (YGNNV) and immunolocalization of virus infection in yellow grouper, Epinephelus awoara (Temminck & Schlegel)

Y. S. Lai, H. C. Chiu, S. Murali, I. C. Guo, S. C. Chen, K. Fang, C. Y. Chang

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Mouse monoclonal antibodies (MAbs) were produced by using yellow grouper nervous necrosis virus (YGNNV) as an immunogen, isolated from infected yellow grouper, Epinephelus awoara (Temminck & Schlegel), and propagated in GB cells. In enzyme linked immunosorbent assay (ELISA), 43 hybridoma clones secreting MAbs strongly reacted with the purified virus. Ten of them showed a higher neutralization index (NI) value between 6.5 and 4.5 (log10 NI) than the other 33 MAbs against YGNNV infection in cell culture. All 10 MAbs belonged to the IgG isotype with a K light chain and recognized the 42 kDa coat protein of YGNNV by Western blot analysis. Immunohistochemical results demonstrated that the viral signals co-located with pathological lesions observed in retina, brain and spinal cord. These results indicate that the MAbs are useful for confirmative diagnosis of YGNNV infection.

Original languageEnglish
Pages (from-to)237-244
Number of pages8
JournalJournal of Fish Diseases
Volume24
Issue number4
DOIs
Publication statusPublished - 2001

Fingerprint

Virus Diseases
neutralization
antibody
monoclonal antibodies
virus
necrosis
Necrosis
Monoclonal Antibodies
Viruses
viruses
infection
Hybridomas
Capsid Proteins
hybridomas
lesion
Retina
brain
clone
coat proteins
Spinal Cord

Keywords

  • Diagnosis
  • Epinephelus awoara
  • Immunohistochemistry
  • MAbs
  • Neutralization
  • YGNNV

ASJC Scopus subject areas

  • Aquatic Science
  • veterinary (miscalleneous)

Cite this

In vitro neutralization by monoclonal antibodies against yellow grouper nervous necrosis virus (YGNNV) and immunolocalization of virus infection in yellow grouper, Epinephelus awoara (Temminck & Schlegel). / Lai, Y. S.; Chiu, H. C.; Murali, S.; Guo, I. C.; Chen, S. C.; Fang, K.; Chang, C. Y.

In: Journal of Fish Diseases, Vol. 24, No. 4, 2001, p. 237-244.

Research output: Contribution to journalArticle

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AU - Chiu, H. C.

AU - Murali, S.

AU - Guo, I. C.

AU - Chen, S. C.

AU - Fang, K.

AU - Chang, C. Y.

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AB - Mouse monoclonal antibodies (MAbs) were produced by using yellow grouper nervous necrosis virus (YGNNV) as an immunogen, isolated from infected yellow grouper, Epinephelus awoara (Temminck & Schlegel), and propagated in GB cells. In enzyme linked immunosorbent assay (ELISA), 43 hybridoma clones secreting MAbs strongly reacted with the purified virus. Ten of them showed a higher neutralization index (NI) value between 6.5 and 4.5 (log10 NI) than the other 33 MAbs against YGNNV infection in cell culture. All 10 MAbs belonged to the IgG isotype with a K light chain and recognized the 42 kDa coat protein of YGNNV by Western blot analysis. Immunohistochemical results demonstrated that the viral signals co-located with pathological lesions observed in retina, brain and spinal cord. These results indicate that the MAbs are useful for confirmative diagnosis of YGNNV infection.

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