Deficiency in indoleamine-2, 3-dioxygenase induces upregulation of guanylate binding protein 1 and inducible nitric oxide synthase expression in the brain during cerebral infection with Toxoplasma gondii in genetically resistant BALB/c mice but not in genetically susceptible C57BL/6 mice.

Abstract excerpt

We examined the roles of indoleamine-2, 3-dioxygenase 1 (IDO1) in controlling cerebral Toxoplasma gondii infection in both genetically resistant and susceptible strains of mice. In susceptible C57BL/6 mice, IDO expression was immunohistochemically detected only in a minority (22.5%) of tachyzoite-infected cells in their brains during the later stage of infection. When C57BL-6-background IDO1-deficient (IDO1-/-)...

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