Review Article

Tumor Lymphangiogenesis as a Potential Therapeutic Target

Table 4

Preclinical studies of anti-lymphangiogenic effect on tumor metastasis.

DrugsExperiment/cancer modelEffectReferences

siRNA VEGF-CMouse mammary tumor model (C166-siVEGFC)Reduction in tumor lymphangiogenesis, lymph node metastasis, and spontaneous lung metastasis[193]

Human monoclonal antibody VC (anti-VEGF-C)In vitro binding affinity of antibody was tested(i) Bind with high specificity and affinity to full processed mature form of human VEGF-C
(ii) Inhibit the binding of VEGF-C to VEGFR-2 and VEGFR-3
[194]

VEGFR31-IgMouse model of a highly metastatic human hepatocellular carcinoma (HCCLM3)(i) Simultaneously bind VEGF-A, VEGF-C.
(ii) Block both tumor angiogenesis and lymphangiogenesis, effectively inhibit primary tumor growth, metastasis to lung and lymph node
[195]

VD1 monoclonal Ab (anti-VEGF-D)Immunodeficient mice, 293EBNA express VEGF-D (mAbs raised to VDH of hVEGF-D (antagonists))Reduce the LN metastasis from 61% to 0%[98]

Monoclonal Ab to VEGFR-3Regeneration of adult lymphatic vesselsBlock the regeneration of lymphatic vessels in adult[196]

VEGFR-3 monoclonal antibodyMouse model of MDA-MB-435/GFP human breast cancer transfected with human VEGF-C cDNASuppress tumor lymphangiogenesis and restrict metastatic spread to lymph nodes and distant organs[197]

Soluble VEGFR-3 (VEGFR-3-Ig)Highly metastasis human lung cancer cells (LNM35) stably expressing VEGFR-3-Ig or recombinant adenovirus expressing VEGFR-3-Ig were injected to LNM35 tumor-bearing mice(i) Inhibition of intra- and peritumoral lymphangiogenesis
(ii) Metastasis to LN was inhibited
(iii) Metastasis to lung occurred in all mice group
[198]

Soluble VEGFR-3 (VEGFR-3-Rg)Immunocompetent rat model induced with highly metastatic MT-450 cancer cells expressing VEGFR-3 soluble(i) Reduction in the number of peritumor lymphatic vessels
(ii) Suppression of metastasis formation both in regional LNs and lungs
[199]

Soluble VEGFR-3 decoy receptor (sVEGFR3-Fc)Mouse model of human melanoma, human prostate injected with recombinant adeno-associated viral vector sVEGFR3-Fc (rAAV-sVEGFR3-Fc) Treatment before tumor implantation(i) Melanoma: inhibit LN metastasis, but have less effect on lung metastasis
(ii) Prostate: inhibit LN and lung metastasis
(iii) Inhibition of tumor-associated lymphangiogenesis
[192]

Soluble VEGFR-3Mouse model of prostate cancer (PC-3): subcutaneously or surgical orthotopic implantation Reduction in intratumoral lymphatics, but metastasis to LN was not significantly affected[200]

Ki23057Mouse model of gastric cancer induced by orthotopic inoculation of OCUM-2MLN cells(i) Ki23057 is a tyrosine kinase inhibitor, block autophosphorylation of VEGFR-3
(ii) Reduced significantly lymphatic invasion and lymphangiogenesis
(iii) Reduced size of orthotopic tumors and number of metastatic LN
[201]

Anti- neutropilin-2Mouse model of breast adenocarcinoma (66C14) and rodent glioblastoma (C6)Reduction in tumor lymphangiogenesis, metastasis to sentinel lymph nodes and distant organs[189]

Celecoxib (COX-2 inhibitor)Mouse model of highly metastasis human lung adeocarcinomaSuppression of the lymphangiogenesis and lymph node metastasis through downregulation of VEGF-C expression.[202]

Antagonists of integrin α4β1Mouse model of Lewis lung carcinoma and B16 melanoma cancerSignificant suppression of lymphangiogenesis and metastasis[203]