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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

RANTES: a new prostaglandin dependent endogenous pyrogen in the rat.

Fever, a hallmark of disease, is a highly complex process initiated by the action of a number of endogenous pyrogens on the thermosensitive cells of the brain. We describe the activity of RANTES, a chemotactic cytokine, as intrinsically pyrogenic in the rat, when it is delivered directly to the thermosensitive region of the rat's anterior hypothalamic, pre-optic area (AH/POA). RANTES, microinjected into the AH/POA in a dose of 1, 5, 10, 15, 25 or 50 pg, produces an immediate and intense dose-related fever following injection. Increasing the dose to 100 pg did not result in a further increase in the febrile response. No significant change in body temperature was produced by heat-inactivated RANTES. The intrahypothalamic injection of antibodies against RANTES (2.0 microg, 15 min prior to RANTES) significantly blocked the fever induced by this chemokine. Pretreatment with ibuprofen blocked the fever induced by RANTES. In order of potency, the magnitude of the febrile response induced by RANTES was greater than that produced with equipotent doses of either macrophage inflammatory protein-1beta or interleukin-6. The results thus demonstrate that RANTES is the most potent endopyrogen discovered thus far and exerts its action directly on pyrogen-sensitive cells of the AH/POA through a prostaglandin-dependent pathway.[1]


  1. RANTES: a new prostaglandin dependent endogenous pyrogen in the rat. Tavares, E., Miñano, F.J. Neuropharmacology (2000) [Pubmed]
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