to examine the effects of etec or its purified enterotoxins upon the humoral immune response of murine small intestinal peyer 's patch lymphocytes , bdf1 ( lipopolysaccharide-responder ) and c3h/hej ( lipopolysaccharide-nonresponder ) mice were orally primed with sheep erythrocytes ( srbc ) four times during a 2-week period to initiate differentiation of peyer 's patch b lymphocytes to cells committed to anti-srbc immunoglobulin a ( iga ) production .
C1511002
differentiation
C0007634
cells