Antilymphoma graft responses in the mouse brain: A study oft‐dependent functions

Abstract

The ability of mouse brain to provide T‐dependent anti‐lymphoma graft responses was studied in a model in which graded numbers of tumor cells were implanted intracerebrally into recipient hosts. By using survival criteria, it was possible to demonstrate the occurrence of both primary and secondary responses against tumor‐associated histocompatibility antigens in allogeneic models as well as tumor‐associated transplantation antigens in histocompatible recipients. The patterns of this in‐tracerebral graft resistance did not differ significantly from those of peripheral T‐dependent immune reactivity. The findings are discussed with regard to the concept of the brain as an immunologically privileged site.