the analysis of the dependence of effects , obtained in various experiments , on the ratio of b-lymphocytes and hematopoietic stem cells indicates that stem cells serve as targets for b-lymphocytes and the most probable mechanism of the above-mentioned effects is the direct interaction of the cells , one regulatory b-lymphocyte being capable of interacting with one target cell .
C0018956
hematopoietic stem cells
C0007634
the