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Brain Res Mol Brain Res. 1991 Jan;9(1-2):143-8.

Induction of interleukin-1 beta mRNA in adult rat brain.

Author information

  • 1Department of Neurobiology and Anatomy, University of Rochester Medical Center, NY 14642.

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.

PMID:
1850069
[PubMed - indexed for MEDLINE]
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