The effect of PPP on growth of cHL cell lines.

<p>A, L428 cells. B, L1236 cells. C, KM-H2 cells. Cell growth upon treatment with 2 µM PPP (black bars) for 1, 2 and 3 days was compared with untreated/DMSO control treatment (white bars). Cell growth was significantly decreased (<i>P</i><0.001) in all three cell lines.