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BAL cell expression of Interferon-γ expression is not enhanced by ESAT-6. IFN-γ mRNA ascertained by qPCR was comparably and significantly (p ≤ 0.05) elevated in MWCNT and MWCNT + ESAT-6 compared to sham controls. IFN-γ was undetectable in BAL cells from mice receiving ESAT-6 alone.
