In fact , transgenic bone marrow cells cocultured with a bone marrow-derived stromal cell line revealed an altered B-cell maturation pattern .
in fact , transgenic bone marrow cells cocultured with a bone marrow-derived stromal cell line revealed an altered b-cell maturation pattern .
O O O B-cell_line I-cell_line I-cell_line I-cell_line O O O B-cell_line I-cell_line I-cell_line I-cell_line I-cell_line O O O B-cell_type O O O