Adhesion of rat neutrophils (PMN, n = 5), mononuclear cells (MNC, n = 5), or Jurkat cells (n = 4) to untransfected and human MAdCAM-1–transfected CHO cells. Adhesion was tested to nontransfected CHO cells, or CHO cells transfected with MAdCAM-1 in the presence or absence of α4 MoAb TA-2 or β1 MoAb Ha2/5. Data are presented as mean percent adherence ± SEM. **(P < .01) indicate values significantly different from percent adhesion to MAdCAM-1–transfected CHO cells. (□), CHO; (▪), MAdCAM-1 CHO; (▨), MAdCAM-1 CHO + anti-α4 MoAb; (▩), MAdCAM-1 CHO + anti-β1 MoAb.