TABLE 1.

SI of lymph node cells from mice immunized with an extract of P. falciparum and then incubated in vitro with peptides and controls

Peptide	SI for mouse straina:
	C57BL/10		B10.BR		BALB/c
	1 μMb	5 μMb	1 μM	5 μM	1 μM	5 μM
MSP-1#1	1.8 ± 0.4	1.5 ± 0.2	1.0 ± 0.2	0.6 ± 0.3	1.0 ± 0.1	1.6 ± 0.4
MSP-1#2	1.9 ± 0.2	1.6 ± 0.2	1.2 ± 0.3	1.1 ± 0.3	0.9 ± 0.1	1.8 ± 0.3
MSP-1#3	1.4 ± 0.4	1.4 ± 0.1	1.1 ± 0.4	0.8 ± 0.4	1.1 ± 0.2	1.1 ± 0.2
MSP-1#4	2.1 ± 0.4	1.4 ± 0.1	1.8 ± 0.2	1.2 ± 0.2	1.2 ± 0.1	2.1 ± 0.3
MSP-1#5	1.5 ± 0.4	1.2 ± 0.4	0.9 ± 0.2	0.7 ± 0.4	0.6 ± 0.1	1.3 ± 0.1
MSP-1#23	1.6 ± 0.3	1.6 ± 0.1	1.4 ± 0.1	0.9 ± 0.1	0.9 ± 0.2	1.5 ± 0.2
PPD	4.4 ± 1.0		4.2 ± 1.2		9.4 ± 3.2
RBC	2.7 ± 0.6		2.2 ± 0.3		2.4 ± 0.8
Extractc	43 ± 1.9		42.8 ± 4.1		37.9 ± 7.4

^aResults are expressed as mean SI ± standard error of the mean from two to four experiments. Positive responses are shown in bold type. 

^bConcentration of peptide used in vitro. 

^cP. falciparum merozoite extract.