One chemokine was examined, CXCR4 siRNA liposome complexes, and this therapy showed a 39.2% reduction (0.398 ± 0.062 g; p < 0.01) in tumor weight compared to the 8.9% reduction (0.655 ± 0.034 g; p > 0.01) in the empty liposome control group [62]. Here, CXCR4 is linked to neoplasm.