ab76003 staining MMP9 in U87-MG cells treated with domoic acid (ab120338), by ICC/IF. Increase of MMP9 expression correlates with increased concentration of domoic acid, as described in literature.The cells were incubated at 37°C for 6h in media containing different concentrations of ab120338 (domoic acid) in DMSO, fixed with 4% formaldehyde for 10 minutes at room temperature and blocked with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% tween for 2h at room temperature. Staining of the treated cells with ab76003 (1/200) dilution was performed overnight at 4°C in PBS containing 1% BSA and 0.1% tween. A DyLight 488 anti-rabbit polyclonal antibody (ab96899) at 1/250 dilution was used as the secondary antibody. Nuclei were counterstained with DAPI and are shown in blue.