Thus , stimulation of monocyte cell lines by phorbol esters or TNF alpha induces cell differentiation and activates HIV transcription .
thus , stimulation of monocyte cell lines by phorbol esters or tnf alpha induces cell differentiation and activates hiv transcription .
O O O O B-cell_line I-cell_line I-cell_line O B-other_organic_compound I-other_organic_compound O B-protein_molecule I-protein_molecule O B-other_name I-other_name O O B-virus O O