It is disclosed herein that agents that affect the activity and/or expression of CXCL16 can be used to alter the uptake of D-type CpG oligodeoxynucleotides (D ODNs). Methods of inducing an immune response are disclosed that include administering agents that increase the activity and/or expression of CXCL16 and a D ODN. Methods of decreasing an immune response to a CpG ODN are also disclosed. These methods include administering an agent that decreases the activity and/or expression of CXCL16. Compositions including one or more D-type ODNs and an agent that modulates that activity and/or expression of CXCL16 are provided.