Research Article

TNF 𝛼 Induces Choroid Plexus Epithelial Cell Barrier Alterations by Apoptotic and Nonapoptotic Mechanisms

Figure 1

Apical and basolateral TNF 𝛼 stimulations induce an equal effect on PCPEC barrier function. PCPECs grown on Transwell filters were stimulated apically (a) or basolaterally (b) with different doses of TNF 𝛼 (1, 10, 100 ng/mL) with or without the protein synthesis inhibitor cycloheximide (1  𝜇 g/mL). Effects on barrier function by measuring Transepithelial electrical resistance (TEER) were determined at 24 hours. The TEER results are expressed as a percentage of baseline. The data shown are mean ± SEM of four independent experiments, each performed in duplicate.
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(a)
307231.fig.001b
(b)