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J Infect Dis. 1995 Jun;171(6):1643-5.

Protection of mice from group A streptococcal skin infection by interleukin-12.

Author information

1
Dept. of Microbiology, Medical College of Ohio, Toledo 43699-0008, USA.

Abstract

It has been shown that interleukin (IL)-12 induces cell-mediated immunity and provides significant protection against intracellular organisms. The ability of this cytokine to enhance immunity in a mouse model of group A streptococcal skin infection was studied. Outbred CD1 mice were injected for 3 consecutive days with 0.1 microgram of recombinant murine IL-12 before or after challenge with strain 64/14 group A streptococci. In both cases, in vivo IL-12 treatment significantly decreased the rate of death after infection and increased survival over the period of experimental observation. Thus, IL-12 may be useful for treatment of gram-positive bacterial infections. The time course of the experiments suggests that IL-12 is acting in this model system to enhance natural, rather than acquired, immunity.

PMID:
7769309
DOI:
10.1093/infdis/171.6.1643
[Indexed for MEDLINE]

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