HUMORAL AND CELLULAR IMMUNE-RESPONSES TO SYNTHETIC PEPTIDES FROM THE PLASMODIUM-FALCIPARUM BLOOD-STAGE ANTIGEN, PF155/RESA, IN CAMEROONIAN WOMEN

被引:12
作者
FIEVET, N
MAUBERT, B
COT, M
CHOUGNET, C
DUBOIS, B
BICKII, J
MIGOT, F
LEHESRAN, JY
FROBERT, Y
DELORON, P
机构
[1] INSERM,U13,F-75019 PARIS,FRANCE
[2] INST MED & EPIDEMIOL AFRICAINES,PARIS,FRANCE
[3] ANTENNE ORSTOM,YAOUNDE,CAMEROON
[4] ORG COOPERAT & COORDINAT LUTTE CONTRE ENDEMIESAFRIQUE CENT,SERV LABS,YAOUNDE,CAMEROON
[5] CTR ETUD SACLAY,CEA,GIF SUR YVETTE,FRANCE
来源
CLINICAL IMMUNOLOGY AND IMMUNOPATHOLOGY | 1995年 / 76卷 / 02期
关键词
D O I
10.1006/clin.1995.1111
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
T- and B-cell responses to the Plasmodium falciparum blood-stage antigen Pfl55/RESA were investigated in 104 Cameroonian women, half of whom were pregnant, We used purified protein and six synthetic peptides representing T- and B-cell epitopes. In vitro T-cell responses were measured by proliferation and IL2, IFN-gamma and IL4 release. B-cell responses were assessed by plasma antibodies. All peptides induced a cellular response in some individuals. A proliferative response was induced in 25% of the donors by Pf155/RESA, and in 7 to 11% by any peptide. Cytokine release occurred in 23 to 30% of the Pf155/RESA-stimulated cultures, and in 8 to 25% of the peptide-stimulated cultures. Overall, each peptide induced a cellular response (proliferation and/or cytokine release) in 44% of the donors. T-cells from 23% of the donors failed to respond to any peptide. Responding cells did not usually respond in all readouts, and proliferation and release of any of the three cytokines were not correlated. Similarly, antibody and T-cell responses were not related. Selected epitopes of Pfl55/RESA, an important vaccine candidate, are well recognized in naturally exposed individuals and are able to activate T-cells to proliferate and to produce various lymophokines in numerous individuals from a malaria endemic area. (C) 1995 Academic Press, Inc.
引用
收藏
页码:164 / 169
页数:6
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