Updated publication reference for PubMed record(s): 29577758. 2D (A549) and 3D (AIR-606) human lung epithelial cell cultures were mock treated or exposed to 100 ug/ml petroleum coke or urban air particulates (both in the PM10 range) for 16 h. Secretomes were compared for triplicate treatments for each group by isobaric tags and LC/MS/MS.