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Assessment of snapper (Pagrus auratus) natural IgM binding to bromelain treated sheep erythrocytes
Citation
Morrison, RN and Lyons, AB and Nowak, BF and Hayball, JD, Assessment of snapper (Pagrus auratus) natural IgM binding to bromelain treated sheep erythrocytes, Fish and Shellfish Immunology, 18, (1) pp. 91-99. ISSN 1050-4648 (2005) [Refereed Article]
DOI: doi:10.1016/j.fsi.2004.06.006
Abstract
Normal snapper (Pagrus auratus Bloch and Schneider) serum was examined for natural IgM that binds to protease (bromelain) treated sheep erythrocytes (BrSRBC) in a model assay system that has been used to appraise natural IgM of various mammals. Normal snapper serum lysed BrSRBC while haemolysis was abrogated by heat inactivation of serum and in divalent cation-deficient conditions, indicative of classical complement mediated lysis. In addition, heat inactivated normal snapper serum agglutinated BrSRBC while phosphatidylcholine (PtC) liposomes partially inhibited both haemolysis and agglutination. Inhibition of haemolysis and agglutination may have been mediated by an interaction between immunoglobulin (Ig) and PtC as protein A purified snapper Ig bound to PtC liposomes. However it is not known if this binding was PtC specific nor if the binding was initiated by either the Fab and/or Fc domains of snapper Ig. BrSRBC plaque forming cells (PFC) were detected in the peritoneal cavity, spleen, head kidney and peripheral blood of normal snapper. The greatest proportion of BrSRBC PFC per B cell was within the peritoneal cavity followed by the spleen, peripheral blood and head kidney. Together, these data suggest that normal snapper serum may contain natural Ig that binds BrSRBC, activating the classical complement cascade. © 2004 Elsevier Ltd. All rights reserved.
Item Details
Item Type: | Refereed Article |
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Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Fisheries sciences |
Research Field: | Aquaculture |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - aquaculture |
Objective Field: | Fisheries - aquaculture not elsewhere classified |
UTAS Author: | Morrison, RN (Dr Richard Morrison) |
UTAS Author: | Lyons, AB (Associate Professor Bruce Lyons) |
UTAS Author: | Nowak, BF (Professor Barbara Nowak) |
ID Code: | 32831 |
Year Published: | 2005 |
Web of Science® Times Cited: | 4 |
Deposited By: | TAFI - Aquaculture |
Deposited On: | 2005-08-01 |
Last Modified: | 2019-12-23 |
Downloads: | 0 |
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