title: Cytokine production in arthritis susceptible and resistant rats: a study with arthritogenic and non-arthritogenic Lactobacillus cell walls.
abstract: The basis of the different susceptibility to bacterial cell wall-induced arthritis between Lewis and Fischer rats is unclear. Likewise, it is not known why cell walls of some species of Lactobacillus are arthritogenic and those of others are not. With these two questions in mind, we investigated the role of anti-inflammatory (interleukin (IL)-10, IL-4) and proinflammatory (tumour necrosis factor (TNF)-alpha, IL-1 beta) cytokines in Lewis and Fischer rats injected intraperitoneally with cell walls from arthritogenic or nonarthritogenic species of Lactobacillus. Cytokine levels in the serum and in vitro production by peritoneal macrophages and splenocytes were studied. The results obtained indicate that the differences in the production of IL-10, IL-4, TNF-alpha or IL-1 beta do not explain the difference in the arthritis susceptibility between Lewis and Fischer rats. Likewise, the arthritogenicity of different Lactobacillus cell walls appears not to be dependent on their capacity to stimulate cytokine production.
authors.affiliation: The Turku Immunology Centre, Turku Graduate School of Biomedical Sciences, Turku University, Turku, Finland. eglesim@utu.fi
authors.forename: E
authors.initials: E
authors.lastname: Simelyte
authors.forename: P
authors.initials: P
authors.lastname: Isomäki
authors.forename: M
authors.initials: M
authors.lastname: Rimpiläinen
authors.forename: X
authors.initials: X
authors.lastname: Zhang
authors.forename: P
authors.initials: P
authors.lastname: Toivanen
mesh_terms: D000818:Animals; D001172:Arthritis, Rheumatoid / Q000235:genetics / Q000378:metabolism*; D002473:Cell Wall / Q000276:immunology*; D016207:Cytokines / Q000096:biosynthesis* / Q000097:blood / Q000235:genetics / Q000502:physiology; D004195:Disease Models, Animal; D005260:Female; D020022:Genetic Predisposition to Disease; D007274:Injections, Intraperitoneal; D007375:Interleukin-1 / Q000096:biosynthesis / Q000097:blood / Q000235:genetics / Q000502:physiology; D016753:Interleukin-10 / Q000096:biosynthesis / Q000097:blood / Q000235:genetics / Q000502:physiology; D007780:Lacticaseibacillus casei / Q000276:immunology*; D017737:Macrophages, Peritoneal / Q000378:metabolism*; D051381:Rats; D011916:Rats, Inbred F344; D011917:Rats, Inbred Lew; D013045:Species Specificity; D013047:Specific Pathogen-Free Organisms; D014409:Tumor Necrosis Factor-alpha / Q000032:analysis / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology
chemical_list: D016207:Cytokines; D007375:Interleukin-1; D014409:Tumor Necrosis Factor-alpha; D016753:Interleukin-10