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The Wellcome Trust Lecture: Genes for antigens of Plasmodium falciparum

Published online by Cambridge University Press:  23 August 2011

D. J. Kemp
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
R. L. Coppel
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
H. D. Stahl
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
A. E. Bianco
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
L. M. Corcoran
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
P. McIntyre
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
C. J. Langford
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
J. M. Favaloro
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
P. E. Crewther
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
G. V. Brown
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
G. F. Mitchell
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
J. G. Culvenor
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia
R. F. Anders
Affiliation:
The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia

Extract

Sporozoites of P. falciparum and other Plasmodia appear to be fairly simple antigenically, in that there is a dominant antigen, the circumsporozoite (CS) protein that forms the sporozoite surface coat (Potocnjak, Yoshida, Nussenzweig & Nussensweig, 1980; Santoro et al. 1983). Consequently, the CS protein and the gene encoding it have now been studied in considerable detail (Ellis et al. 1983; Godson et al. 1983; Ozaki et al. 1983; Dame et al. 1984; Enea et al. 1984). In contrast to sporozoites, the asexual blood stages of P. falciparum are antigenically complex. Two-dimensional gel analyses of immunoprecipitated, biosynthetically labelled antigens indicate that repeated infection with P. falciparum results in the synthesis of antibodies against a large number of distinct antigens (Perrin & Dayal, 1982; Brown et al. 1981, 1983). In further contrast to the sporozoite, the asexual blood stages of different P. falciparum isolates exhibit a high degree of antigenic heterogeneity (Brown et al. 1983; Hall et al. 1983; McBride, Walliker & Morgan, 1982). Much of this antigenic diversity is no doubt due to allelic differences but clonal populations of parasites may also have the capacity to undergo antigenic variation (Hommel, David & Oligino, 1983).

Type
Research Article
Copyright
Copyright © Cambridge University Press 1986

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