The level of constitutive NF-kappa B in these cells is variable and is frequently found to be lower in the more mature macrophages .
the level of constitutive nf-kappa b in these cells is variable and is frequently found to be lower in the more mature macrophages .
O O O O B-protein_molecule I-protein_molecule O O O O O O O O O O O O O O O B-cell_type I-cell_type O