First Author | Krawczyk CM | Year | 2010 |
Journal | Blood | Volume | 115 |
Issue | 23 | Pages | 4742-9 |
PubMed ID | 20351312 | Mgi Jnum | J:161548 |
Mgi Id | MGI:4459599 | Doi | 10.1182/blood-2009-10-249540 |
Citation | Krawczyk CM, et al. (2010) Toll-like receptor-induced changes in glycolytic metabolism regulate dendritic cell activation. Blood 115(23):4742-9 |
abstractText | Dendritic cells (DCs) are key regulators of innate and acquired immunity. The maturation of DCs is directed by signal transduction events downstream of toll-like receptors (TLRs) and other pattern recognition receptors. Here, we demonstrate that, in mouse DCs, TLR agonists stimulate a profound metabolic transition to aerobic glycolysis, similar to the Warburg metabolism displayed by cancer cells. This metabolic switch depends on the phosphatidyl inositol 3'-kinase/Akt pathway, is antagonized by the adenosine monophosphate (AMP)-activated protein kinase (AMPK), and is required for DC maturation. The metabolic switch induced by DC activation is antagonized by the antiinflammatory cytokine interleukin-10. Our data pinpoint TLR-mediated metabolic conversion as essential for DC maturation and function and reveal it as a potential target for intervention in the control of excessive inflammation and inappropriately regulated immune responses. |