Figure 6From: Diesel exhaust particles modulate the tight junction protein occludin in lung cells in vitro Cytotoxicity of EC mono- and triple cell co-cultures. LDH (a marker for membrane permeability) levels were determined. The values did not change significantly after DEP exposure in epithelial mono-cultures (A) and triple cell co-cultures (B). Data are presented as mean ± SD of 3 experiments.Back to article page