Oral infection with Toxoplasma gondii leads to transient systemic hyporesponsiveness. In this report, we characterized the presence in the lungs of GR1(+) CD11b(+) myeloid cells that have potent nitric oxide-dependent immunoregulatory properties. We also demonstrated the interleukin 2-reversible anergy of both pulmonary CD8(+) and CD4(+) activated T lymphocytes with infection.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC517443PMC
http://dx.doi.org/10.1128/IAI.72.9.5487-5492.2004DOI Listing

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