Effect of TNF-α inhibitors on renal cytokine expression. Mice were injected with either saline, cisplatin, or cisplatin with GM6001, or pentoxifylline and sacrificed at 72 hours. Cytokine transcripts were measured by RPA as in Figure 1. All lanes are from the same gel. Lanes 1 and 2 are shown in Figure 1 and are included here to facilitate comparison with the TNF-α inhibitor samples.