TABLE 5.

Parasite specificity of the proliferative response of cloned and uncloned γδ T-cell lines^a

Responder cell population	Result for stimulator cells
	TpL	hsConA blasts	ConA blasts
Line 6	6.8	0.9	0.6
clone F6	25.3	1.6	1.7
clone F15	35.8	2.1	1.9
clone A8	6.4	0.9	0.7

^aResults are shown as SIs calculated as described in Materials and Methods. The SD of the mean was always <10% and is not given. The results are representative of three separate experiments. The γδ T-cell line and clones (10⁴ cells/well) were cultured for 5 days with irradiated stimulator cells (10⁴ cells/well) in the presence of 10% TCGF. Control cultures of T cells cultured in the presence of 10% TCGF only showed <2,050 cpm. Proliferative responses of T cells cultured with TpL were shown to be significantly different from proliferative responses of T cells cultured with ConA blasts or hsConA blasts (P < 0.05) by the Student one-tailed t test.