tokens: C5a , a potent peptide chemoattractant , stimulates interleukin-8 ( IL-8 ) secretion from peripheral blood mononuclear cells ( PBMC ) .
folded_tokens: c5a , a potent peptide chemoattractant , stimulates interleukin-8 ( il-8 ) secretion from peripheral blood mononuclear cells ( pbmc ) .
labels: B-peptide O O B-peptide I-peptide O O O B-protein_molecule O B-protein_molecule O O O B-cell_type I-cell_type B-cell_type I-cell_type O B-cell_type O O