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Effects of IFN-γ on the FAS and FASL expression on CD4+ T cells from lung tissue and peribronchial lymph nodes (PLNs). Single-cell suspensions prepared from lung tissue and PLNs were double-stained with FITC-conjugated anti-CD4, PE-conjugated anti-FAS or FASL and were analyzed by flow cytometry. (A) Percentage of CD4- and FAS-positive cells in lung tissue; (B) Percentage of CD4- and FASL-positive cells in lung tissue; (C) Percentage of CD4- and FASL-positive cells in PLNs.
