Interleukin-18 enhances a Th2 biased response and susceptibility to Leishmania mexicana in BALB/c mice |
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Authors: | Bryson Karen Jane Wei Xiao-Qing Alexander James |
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Affiliation: | Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK. |
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Abstract: | Interleukin-18 deficient mice on a BALB/c background display increased resistance to cutaneous infection with Leishmania mexicana, with reduced lesion progression and reduced parasite burdens compared with wild-type mice. Infected IL-18-/- mice had lower antigen specific IgG1 levels and total IgE levels and conversely higher antigen specific IgG2a levels than similarly infected wild-type mice. Splenocytes isolated from infected IL-18-/- mice produced significantly lower levels of antigen induced IL-4 and higher levels of IFN-gamma than wild-type animals. Consequently IL-18 during L. mexicana infection of BALB/c mice promotes a Th2 biased response and thereby has a disease exacerbating role. |
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Keywords: | Interleukin-18 Leishmania mexicana Th2 |
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