tokens: We demonstrate that Pb at physiologically relevant concentrations activates NF-kappa B in primary human CD4+ T lymphocytes .
folded_tokens: we demonstrate that pb at physiologically relevant concentrations activates nf-kappa b in primary human cd4+ t lymphocytes .
labels: O O O B-atom O O O O O B-protein_complex I-protein_complex O B-cell_type I-cell_type I-cell_type I-cell_type I-cell_type O