MMP12 and neoplasm: As a result, the tumor inhibition efficiency of Taxol®, PALA, PALA-ME and PALA-sLDL was 51.2%, 50.0%, 58.8% and 72.1%, respectively, which demonstrated that PALA-sLDL had the strongest anti-tumor effect in vivo and its anti-tumor effect was higher than Taxol® (Figure 10).