“…Studies have shown that exposure to particulate matter, in both human and mouse alveolar epithelial cells, in vitro, can induce expression of a variety of inflammatory cytokines (Barrett et al, 1998;Bonvallot et al, 2001;Aust et al, 2002;Adamson et al, 2004;Singal and Finkelstein, 2005a). There have been great strides in elucidating the mechanism by which particulate matter and allergenic materials promote the transcription of proinflammatory genes in alveolar epithelial cells, as well as other cells related to, or in proximity of, the respiratory tract (Glaab et al, 2005;Keinan et al, 2005;Laumbach et al, 2005;Singal and Finkelstein, 2005a;Barnes, 2008;Boverhof et al, 2008;Ciprandi and Passalacqua, 2008;Lewis et al, 2008;Matsuda et al, 2008;Pantano et al, 2008;Passalacqua and Ciprandi, 2008;Siddiqui et al, 2008;Verstraelen et al, 2008;Desai and Brightling, 2009;Ferguson et al, 2009;Hammad et al, 2009;Prefontaine et al, 2009;Qian et al, 2009;Volckens et al, 2009;Woodruff et al, 2009;Bhattacharyya et al, 2010;Burgess et al, 2010;Cao et al, 2010;Corps et al, 2010;Lambrecht and Hammad, 2010;Olin et al, 2010;Raja et al, 2010;Trivedi and Caughey, 2010;Chu and Chiang, 2011;Chustz et al, 2011;Fuchimoto et al, 2011;…”