Cover Picture: Eur. J. Immunol. 11/08

J Immunol

Retinoic acid (RA), a well-known vitamin A metabolite, mediates inhibition of the IL-6driven induction of proinflammatory Th17 cells and promotes anti-inflammatory regulatory T cell generation in the presence of TGF-beta, which is mainly regulated by dendritic cells. To directly address the role of RA in Th17/regulatory T cell generation in vivo, we generated vitamin A-deficient (VAD) mice by c...

Cover Picture.

Mucosal Immunol

Loss of CD4(+) T cells in the gut is necessary but not sufficient to cause AIDS in animal models, raising the possibility that a differential loss of CD4(+) T-cell subtypes may be important. We found that CD4(+) T cells that produce interleukin (IL)-17, a recently identified lineage of effector CD4(+) T-helper cells, are infected by SIV(mac251)in vitro and in vivo, and are found at lower freque...

Dmd064303 1108..1118

Gemfibrozil has been suggested as a sensitive cytochrome P450 2C8 (CYP2C8) inhibitor for clinical investigation by the U.S. Food and Drug Administration and the European Medicines Agency. However, gemfibrozil drug-drug interactions (DDIs) are complex; its major circulating metabolite, gemfibrozil 1-O-b-glucuronide (GemGlu), exhibits time-dependent inhibition of CYP2C8, and both parent and metab...

NpgRJ_Nsmb_1173 1108..1114

MicroRNAs (miRNAs) regulate gene expression at a post-transcriptional level through base-pairing to 3¢ untranslated regions (UTRs) of messenger RNAs. The mechanism by which human let-7a miRNA regulates mRNA translation was examined in HeLa cells expressing reporter mRNAs containing the Caenorhabditis elegans lin-41 3¢ UTR. let-7a miRNA strongly repressed translation, yet the majority of control...