passages.id: split_5_test_3658_passage
passages.type: progene_text
passages.text: In addition , the association of phosphoinositide 3-kinase with CD28 and enhanced tyrosine phosphorylation of phospholipase Cgamma were seen after anti - CD28 mAb and CHO - CD80 stimulation but to a much lesser extent after CHO - CD86 stimulation .