Peripheral blood lymphocytes and EAC-rosette forming cells in B77 tumor bearing rats

The percentage and absolute numbers of peripheral blood lymphocytes and EAC-rosette forming cells were evaluated in B77 tumor bearing rats. The peripheral blood lymphocytes were in high level even in rats bearing very small tumors; this result suggest the mobilization of lymphoyctes into peripheral blood in tumor bearing rats. The increase of EAC-rosette forming cells was accompanied with the growth of tumors.