These quantitative , if not qualitative , differences between signaling initiated by these two ligands for CD28 may contribute to functional differences ( e . g . Th1 or Th2 differentiation ) in T cell responses .
these quantitative , if not qualitative , differences between signaling initiated by these two ligands for cd28 may contribute to functional differences ( e . g . th1 or th2 differentiation ) in t cell responses .
O O O O O O O O O O O O O O O O B-protein_molecule O O O O O O O O O O O O O O O O B-other_name I-other_name I-other_name O