Fig 4. Expression of CYP enzymes in primary rat hepatocytes cultured on Matrigel or collagen.

(A) Depicted are representative Western immunoblots of protein extracts of rat hepatocytes cultured for 5 days. (B) The relative band density was determined using LI-COR image studio of the Lite software. Data are mean±SD of n = 3 independent experiments. PC: positive control (rat liver extract); B: blank lane; C: control hepatocyte cultures; A: Aroclor 1254 treated cultures