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Induction of interleukin-1β mRNA in adult rat brain

Molecular Brain ResearchPublished 1 January 1991
Gerald A. Higgins, John A. Olschowka
Citations135

TL;DR

These studies show that IL-1β mRNA can be induced to high levels within the CNS as a consequence of exposure to potent stimulators of macrophaga activation.

Abstract

The ability of the central nervous system to produce the cytokine interleukin-1 beta (IL-1 beta) in response to challenge by activators of the mononuclear phagocyte system has been examined in vivo. Unilateral injection of a mixture of gamma-interferon (IFN-gamma) and lipopolysaccharide (LPS) into the forebrain of adult rats induced expression of IL-1 beta mRNA. In situ hybridization of IL-1 beta mRNA showed a gradient of cellular hybridization, which was most intense at the site of IFN-gamma/LPS injection. The reverse transcription--polymerase chain reaction (RT-PCR) was used to demonstrate the presence of IL-1 beta mRNA in normal rat brain, and to confirm increases in IL-1 beta mRNA levels following IFN-gamma/LPS injection. These studies show that IL-1 beta can be induced to high levels within the CNS as a consequence of exposure to potent stimulators of macrophage activation.

Keywords

Immunology and MicrobiologyNeuroscience