We observed an increase in protein tyrosine kinase activity ( up to 1 . 8 +/- 0 . 5-fold ) and NF-kappaB protein activity in BEAS-2B cells after particle or fibre exposure of co-cultured BM .
we observed an increase in protein tyrosine kinase activity ( up to 1 . 8 +/- 0 . 5-fold ) and nf-kappab protein activity in beas-2b cells after particle or fibre exposure of co-cultured bm .
O O O O O B-protein_family_or_group B-amino_acid_monomer O O O O O O O O O O O O O O B-protein_complex O O O B-cell_type I-cell_type O O O B-carbohydrate O O B-cell_line B-cell_type O