passages.id: split_1_test_2075_passage
passages.type: progene_text
passages.text: The purpose of the present comparative immunohistochemical study was to compare rates of cell adhesion molecule ( E-cadherin ) and protease [ stromelysin-3 ( ST-3 ) ] expression in groups of de novo ( n = 64 ) and ex adenoma ( n = 42 ) lesions in order to see whether their more aggressive behavior is associated with decreased cell adhesion and increased protease expression .