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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Acute immunotoxicity of p-chloronitrobenzene in mice: II. Effect of p-chloronitrobenzene on the immunophenotype of murine splenocytes determined by flow cytometry.

To evaluate the immunotoxicity of p-chloronitrobenzene (p-CNB), we investigated its effect on the immunophenotype of murine splenocytes. BDF1 male mice were randomly divided into exposed and control groups: the exposed group received p-CNB at 300 mg/kg dissolved in olive oil, while the control group received only olive oil, by a single intraperitoneal (i.p.) or subcutaneous (s.c.) injection. On days 3, 5, 7, and 10 after the injection, splenocytes were harvested from both groups, and the following cell phenotypes were quantified by flow cytometry: (1) B cells (CD45R/B220); (2) T cells (CD3e); (3) T-cell subsets (CD4 and CD8a); (4) natural killer (NK) cells (NK-1.1); (5) macrophages (CD11b; Mac-1); (6) nucleated erythrocytes (Ter-119); and (7) dead cells with propidium iodide (PI). The percentages and numbers of B, T, subsets of T (CD4 and CD8), and NK cells in the exposed mice significantly decreased as compared with the respective control. On the other hand, macrophages (Mac-1+ cells), nucleated erythrocytes (Ter-119+ cells), and dead cells in the exposed mice markedly increased as compared with the respective control after i.p. injection of p-CNB. The above findings indicate that p-CNB has an immunotoxic effect on mice.[1]


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