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Altered self-erythrocyte recognition and destruction in an inbred line of tilapia (Oreochromis aureus)
Year:
2006
Source of publication :
Journal of Immunology
Authors :
Hulata, Gideon
;
.
Ron, Micha
;
.
Shirak, Andrey
;
.
Volume :
176
Co-Authors:
Shirak, A., Laboratory of Fish Immunology and Genetics, Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel, Institute of Animal Science, Agricultural Research Organization, Bet-Dagan, Israel
Bendersky, A., Laboratory of Fish Immunology and Genetics, Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
Hulata, G., Institute of Animal Science, Agricultural Research Organization, Bet-Dagan, Israel
Ron, M., Institute of Animal Science, Agricultural Research Organization, Bet-Dagan, Israel
Avtalion, R.R., Laboratory of Fish Immunology and Genetics, Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
Facilitators :
From page:
390
To page:
394
(
Total pages:
5
)
Abstract:
Carboxyfluorescein diacetate (cFDA)-stained autologous and syngeneic tilapia (Oreochromis aureus) erythrocytes are recognized by effector peripheral blood leukocytes and lysed after a short culture period of 4 h. The hemolysis level was evaluated by measuring the fluorescence of the released cFDA. The degree of lysis of stained target erythrocytes of 60 individuals revealed a trimodal distribution statistically stratified into three groups of low (LR), intermediate (IR), and high (HR) responders. Depletion of the majority of phagocytes from leukocytes lowered the lysis level of HR to that of LR. A highly significant increase of LR cytotoxicity was obtained after the addition of conditioned medium from HR but only in the presence of phagocytes. Genetic analysis of offspring from four crosses (IR × HR, IR × LR, HR × LR, and LR × LR) revealed a quantitative trait locus (QTL) segregating for the level of response linked to markers UNH207 and UNH231 on linkage group 6 of tilapia. Based on segregation analysis of 58 gynogenetic BIU-1 offspring, the distances from the centromere were estimated as 21.5, 11.5, and 9.0 cM for UNH207, UNH231, and the QTL, respectively. It is suggested that 1) self-target recognition and destruction requires both cFDA-altered self-erythrocyte membrane and membrane structures normally present in autologous, syngeneic, and xenogeneic targets; 2) natural cytotoxic cells and/or macrophages are involved in erythrocyte lysis; and 3) the lysis level is codominantly inherited by a QTL segregating on tilapia linkage group 6. Copyright © 2005 by The American Association of Immunologists, Inc.
Note:
Related Files :
animal experiment
Animals
Autoantigens
erythrocyte membrane
Female
inheritance
Male
Phagocytes
Tilapia
Show More
Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19940
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:32
Scientific Publication
Altered self-erythrocyte recognition and destruction in an inbred line of tilapia (Oreochromis aureus)
176
Shirak, A., Laboratory of Fish Immunology and Genetics, Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel, Institute of Animal Science, Agricultural Research Organization, Bet-Dagan, Israel
Bendersky, A., Laboratory of Fish Immunology and Genetics, Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
Hulata, G., Institute of Animal Science, Agricultural Research Organization, Bet-Dagan, Israel
Ron, M., Institute of Animal Science, Agricultural Research Organization, Bet-Dagan, Israel
Avtalion, R.R., Laboratory of Fish Immunology and Genetics, Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
Altered self-erythrocyte recognition and destruction in an inbred line of tilapia (Oreochromis aureus)
Carboxyfluorescein diacetate (cFDA)-stained autologous and syngeneic tilapia (Oreochromis aureus) erythrocytes are recognized by effector peripheral blood leukocytes and lysed after a short culture period of 4 h. The hemolysis level was evaluated by measuring the fluorescence of the released cFDA. The degree of lysis of stained target erythrocytes of 60 individuals revealed a trimodal distribution statistically stratified into three groups of low (LR), intermediate (IR), and high (HR) responders. Depletion of the majority of phagocytes from leukocytes lowered the lysis level of HR to that of LR. A highly significant increase of LR cytotoxicity was obtained after the addition of conditioned medium from HR but only in the presence of phagocytes. Genetic analysis of offspring from four crosses (IR × HR, IR × LR, HR × LR, and LR × LR) revealed a quantitative trait locus (QTL) segregating for the level of response linked to markers UNH207 and UNH231 on linkage group 6 of tilapia. Based on segregation analysis of 58 gynogenetic BIU-1 offspring, the distances from the centromere were estimated as 21.5, 11.5, and 9.0 cM for UNH207, UNH231, and the QTL, respectively. It is suggested that 1) self-target recognition and destruction requires both cFDA-altered self-erythrocyte membrane and membrane structures normally present in autologous, syngeneic, and xenogeneic targets; 2) natural cytotoxic cells and/or macrophages are involved in erythrocyte lysis; and 3) the lysis level is codominantly inherited by a QTL segregating on tilapia linkage group 6. Copyright © 2005 by The American Association of Immunologists, Inc.
Scientific Publication
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