(A) One-way MLR: Recipient B and donors. Results of one-way MLR between recipient B and her four male donors. White bars represent the tritiated thymidine uptake of cells from recipient B mixed with mitomycin C–treated autologous cells (control). Patterned bars represent tritiated thymidine uptake of the indicated donor cells mixed with their own mitomycin C-treated cells (control). Black bars represent the response of cells from recipient B to mitomycin C–treated stimulator cells from the indicated donor. Gray bars represent the indicated donor cell response to mitomycin C–treated stimulator cells from recipient B. Results shown are the mean cpm of triplicate cultures. (B) One-way MLR: Recipient D and donors. Results of one-way MLR between recipient D and her seven male and three female donors. White bars represent the tritiated thymidine uptake of cells from recipient D mixed with mitomycin C–treated autologous cells (control). Patterned bars represent tritiated thymidine uptake of the indicated donor cells mixed with their own mitomycin C–treated cells (control). Black bars represent the response of cells from recipient D to mitomycin C–treated stimulator cells from the indicated donor. Gray bars represent the indicated donor cell response to mitomycin C–treated stimulator cells from recipient D. Results shown are the mean cpm of triplicate cultures.