tokens: Human RXR alpha was significantly expressed in U937 and THP-1 cells , weakly expressed in H9 cells and not detectable in CEM cells .
folded_tokens: human rxr alpha was significantly expressed in u937 and thp-1 cells , weakly expressed in h9 cells and not detectable in cem cells .
labels: B-protein_molecule I-protein_molecule I-protein_molecule O O O O O O O O O O O O B-cell_line I-cell_line O O O O B-cell_line I-cell_line O