Abstract
Interleukin-6 (IL-6) was produced in response to mucosal and systemic infection of mice with gram-negative bacteria. The IL-6 response was controlled by the lipopolysaccharide gene, Lps; in C3H/HeN mice (Lpsn/Lpsn), the urinary IL-6 levels increased within 30 min after challenge with Escherichia coli, but no response occurred in C3H/HeJ mice (Lpsd/Lpsd). In lipopolysaccharide-responder mice, the levels of local and systemic IL-6 were related to the degree of infection. The urinary response dominated after intravesical challenge, and the serum response dominated after intraperitoneal challenge. The results demonstrate that IL-6 is activated as part of lipopolysaccharide-induced mucosal and systemic responses to gram-negative bacterial infections.
MeSH Terms
Animals
Escherichia coli Infections/genetics,microbiology,physiopathology
Genes
Interleukin-1/biosynthesis
Interleukin-6/biosynthesis,urine
Kidney/microbiology
Lipopolysaccharides/pharmacology
Mice
Mice, Inbred C3H
Mucous Membrane/immunology,microbiology
Time Factors
Urinary Bladder/microbiology
Urinary Tract Infections/microbiology,physiopathology
Chemicals
Interleukin-1
Interleukin-6
Lipopolysaccharides
Authors & Affiliations
6 authors, click to expand affiliations / ORCID
de Man P
Department of Clinical Immunology, University of Göteborg, Sweden.
van Kooten C
Aarden L
Engberg I
Linder H
Svanborg Edén C
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