Interleukin-1 Receptor Type I Gene-Deficient Mice Are Less Susceptible to Staphylococcus epidermidis Biomaterial-Associated Infection than Are Wild-Type Mice
AUTOR(ES)
Boelens, Jaap Jan
FONTE
American Society for Microbiology
RESUMO
Elevated concentrations of interleukin-1 (IL-1) were found in tissue surrounding biomaterials infected with Staphylococcus epidermidis. To determine the role of IL-1 in biomaterial-associated infection (BAI), IL-1 receptor type I-deficient (IL-1R−/−) and wild-type mice received subcutaneous implants of silicon elastomer (SE) or polyvinylpyrrolidone-grafted SE (SEpvp), combined with an injection of 106 CFU of S. epidermidis or sterile saline. Neither mouse strain was susceptible to BAI around SE. IL-1R−/− mice with SEpvp implants had a no abscess formation and a reduced susceptibility to persistent S. epidermidis infection. The normal foreign body response, characterized by giant-cell formation and encapsulation, was delayed around SEpvp in wild-type mice but not in IL-1R−/− mice. This coincided with enhanced local IL-4 production in IL-1R−/− mice. These data suggest that inhibition of local IL-1 activity may be beneficial for the outcome of BAI.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=97800Documentos Relacionados
- Migration-Inhibitory Factor Gene-Deficient Mice Are Susceptible to Cutaneous Leishmania major Infection
- Recombinant Herpes Simplex Virus Type 1 Expressing Murine Interleukin-4 Is Less Virulent than Wild-Type Virus in Mice
- Lipoprotein lipase gene-deficient mice with hypertriglyceridaemia associated with acute pancreatitis
- Plasminogen activator inhibitor-1 gene-deficient mice. I. Generation by homologous recombination and characterization.
- Mice Deficient in Interleukin-4 (IL-4) or IL-4 Receptor α Have Higher Resistance to Sporozoite Infection with Plasmodium berghei (ANKA) than Do Naive Wild-Type Mice