Values of human kappa light chain for each mouse.

Values were determined 8 weeks after injection of tumor. Note that tumors form poorly when cells expressing cell surface syndecan-1 (Syn-1) were injected. (P < .000 01 for neo versus sSyn-1.2 and Syn-1 versus sSyn-1.2, P < .002 for neo versus sSyn-1.10 and P < .0004 for Syn-1 versus sSyn1.10.)