First Author | Tabel H | Year | 1999 |
Journal | Pathobiology | Volume | 67 |
Issue | 5-6 | Pages | 273-6 |
PubMed ID | 10725801 | Mgi Jnum | J:61097 |
Mgi Id | MGI:1354443 | Doi | 10.1159/000028078 |
Citation | Tabel H, et al. (1999) Experimental African trypanosomiasis: differences in cytokine and nitric oxide production by macrophages from resistant and susceptible mice. Pathobiology 67(5-6):273-6 |
abstractText | Immunosuppression in experimental infections with Trypanosoma congolense is mediated by the synergistic action of macrophages and a novel lymphocyte(s), which involves the activity of IFN-gamma as well as IL-10. BALB/c mice are highly susceptible while C57Bl/6 mice are relatively resistant to T. congolense infections. Plasma and/or supernatants of spleen cell cultures of infected susceptible BALB/c mice have more IL-10 but less IL-12 than those of infected relatively resistant C57Bl/6 mice. Cells of a BALB/c macrophage cell line, when pulsed with T. congolense, produce more IL-10 and IL-6, but have less TNF-alpha mRNA, than equally treated cells of a C57Bl/6 cell line. Peritoneal and/or bone marrow-derived macrophages obtained from BALB/c mice, pulsed with T. congolense in culture, produce less nitric oxide, TNF-alpha and IL-12, but more IL-6 and IL-10 than equally treated macrophages isolated from C57Bl/6 mice. We suggest that genetic resistance to African trypanosomiasis is expressed at the level of the macrophage. Copyright 2000 S. Karger AG, Basel. |