Dexamethasone (D4902) (DEX) and GW7647 (G6793) (GW) were obtained from Sigma–Aldrich (St. Louis, MO, USA). Anti-GR, anti-PPARα, anti-RNA pol II and anti-p65 antibodies were obtained from Santa Cruz. Phospho-specific rabbit antibodies to p38 (Thr-180/Tyr-182), p42/44 ERK (Thr202/Tyr204), MSK1 (Thr581) and IKKα/β (Ser180/S181) were used to detect the respective phosphorylated forms and purchased from Cell Signaling. Anti-p38, anti-ERK, anti-MSK1, and anti-IκBα antibodies were purchased from Cell Signaling. Anti-tubulin and anti-actin were used as loading control and obtained from Santa Cruz. Anti-phospho-65 was obtained from Santa Cruz. Recombinant murine TNFα was produced and purified as described (30 (link)). TNFα was used at a final concentration of 2,000 IU/ml. p(IL6κB)350hu.IL6P-luc+ (hereafter renamed NF-κB-Luc), PPARα, GR, and 5HT7 control plasmids were described previously (21 (link), 31 (link)–33 (link)). LPS was purchased from Invivogen.
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