Among host immune factors , the cytokine TNF-alpha has previously been shown to increase HIV-1 replication in various monocyte and T cell model systems .
among host immune factors , the cytokine tnf-alpha has previously been shown to increase hiv-1 replication in various monocyte and t cell model systems .
O O O O O O B-protein_family_or_group B-protein_molecule O O O O O O B-virus O O O B-other_name O B-other_name I-other_name I-other_name I-other_name O