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Immune responses of teleost fish
journal contribution
posted on 2023-05-16, 12:47 authored by Watts, M, Munday, BL, Burke, CMIn fish all the pre-requisites to mount a specific immune response are present, but the main differences from the mammalian system are that the secondary response is relatively minor and IgG is not present. In teleosts mainly IgM is present, and IgD has been recently described but its function is, as yet, unknown. However, different forms of fish IgM and its observed flexibility of structure may compensate for a lack of Ig class diversity. The innate immune response of teleosts is highly developed. Multiple forms of key constitutive and inducible components, such as lysozyme, C3, α2-macroglobulin and C-reactive protein, are present, and may enhance immune recognition. Low ambient temperature appears to have an impact on all aspects of the immune response, particularly the T-dependent specific immune response due to the non-adaptive lipid composition of T-cell membranes. Temperature effects on the nonspecific immune system are less well characterised, but there is evidence that low temperatures are also suppressive. Knowledge of immune system function becomes essential for disease prevention strategies such as the development of vaccines, selection for increased disease resistance and identification of genes suitable for trangenesis.
History
Publication title
Australian Veterinary JournalVolume
79Issue
8Pagination
570-574ISSN
0005-0423Department/School
Institute for Marine and Antarctic StudiesPublisher
Australian Veterinary AssociationPlace of publication
MelbourneRepository Status
- Restricted