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Effect of PnTX-G on Neuro2a cells (a), undifferentiated Caco-2 cells (b), and KB cells (c). The effect was evaluated at a single time exposure: 24 h for Neuro2A, 48 h for undifferentiated Caco-2 and 72 h for KB cells. Data presented (mean ± SEM, in graph c, some error bars are smaller than the symbol of the data point) were obtained from two independent experiments (duplicate wells per experiment for Neuro2A and Caco-2, triplicate wells per experiment for KB cells).
