In contrast to PU . 1 , significant levels of Spi-B mRNA and protein are found only in some B-cell lines and spleen but are not found in myeloid cell lines , neutrophils , or macrophages .
in contrast to pu . 1 , significant levels of spi-b mrna and protein are found only in some b-cell lines and spleen but are not found in myeloid cell lines , neutrophils , or macrophages .
O O O B-protein_molecule I-protein_molecule I-protein_molecule O O O O B-protein_molecule O O O O O O O O B-cell_line I-cell_line O B-body_part O O O O O B-cell_line I-cell_line I-cell_line O B-cell_type O O B-cell_type O