TABLE 3.

Summary of IFN-γ production in PBMC stimulated with groups of P-4 peptides^a

Peptide group	IFN-γ (pg/ml) for patient:											Total no. of responsive patients
	6	7	8	9	10	11	12	13	14	15	16
I	108	310	83	67	—b	—	95	—	171	—	—	6
II	—	141	86	41	—	—	71	—	195	—	—	5
III	—	38	61	—	—	—	28	—	208	26	21	6
IV	60	98	—	49	—	—	101	—	131	—	—	5
V	—	301	—	56	—	—	28	—	176	—	—	4
VI	217	161	—	27	—	—	30	—	149	—	—	5
VII	—	262	—	38	—	—	—	—	123	—	—	3
VIII	—	124	138	45	—	—	—	—	131	—	29	5

^aPBMC from patients 6 through 16 were stimulated with groups of peptides as described in Material and Methods. After 5 days of antigenic stimulation, supernatants were harvested and IFN-γ levels were measured by ELISA. 

^b—, <20 pg/ml.