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J Infect Dis. 1994 Oct;170(4):939-45.

Immunocytochemical detection of cytokines in the lymph nodes and brains of mice resistant or susceptible to toxoplasmic encephalitis.

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Department of Medicine, Stanford University School of Medicine.


BALB/c mice develop toxoplasmic encephalitis (TE) but the pathology resolves; in contrast, CBA/Ca mice develop progressive TE. Immunohistochemical analysis revealed peak staining for interferon-gamma (IFN-gamma) and tumor necrosis factor (TNF) in lymph nodes of both strains on day 7 of infection, with elevated levels of IFN-gamma and TNF persisting in CBA/Ca mice. TNF was present in the central nervous systems (CNS) of both strains of mice and correlated with severity of pathology. Interleukin (IL)-2 was detected in lymph nodes and CNS of CBA/Ca mice after day 52 of infection and only in the lymph nodes of BALB/c mice between days 14 and 21 after infection. Highest levels of IL-10 were observed in lymph nodes and CNS of infected CBA/Ca mice. Variations in cytokine levels in lymph nodes and CNS of these mouse strains may account for differences in their susceptibility to TE.

[Indexed for MEDLINE]

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