passages.id: split_1_test_3423_passage
passages.type: progene_text
passages.text: We have assessed that A549 constitutively expressed ART1 on the cell surface and shown that lipotheicoic acid ( LTA ) and flagellin , but not lipopolysaccharide ( LPS ) , peptidoglycan ( PG ) and poly ( I : C ) , up - regulate ART1 in a time and dose dependent manner .