tokens: The effects of prostaglandin E2 ( PGE2 ) on cytokine production and proliferation of the CD4+ human helper T cell clone SP-B21 were investigated .
folded_tokens: the effects of prostaglandin e2 ( pge2 ) on cytokine production and proliferation of the cd4+ human helper t cell clone sp-b21 were investigated .
labels: O O O B-protein_molecule I-protein_molecule O B-protein_molecule O O B-protein_family_or_group O O B-other_name O O B-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line O O O