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. Author manuscript; available in PMC: 2015 Mar 13.
Published in final edited form as: Nat Rev Cancer. 2013 Oct;13(10):739–752. doi: 10.1038/nrc3581

Table 1.

Therapeutic Agent Target Type of Cancer Tested Effect on MDSCs
Neutralizing Ab to receptor tyrosine kinase (cKit)92 Growth factor Colon carcinoma (mice) Inhibition of proliferation
Prokineticin 2 (PROK2)-specific Ab183 Growth factor Tumours of human & mouse origin in nude mice Inhibition of PMN/MDSC expansion & tumour recruitment
Neutralizing Ab to granulocyte-macrophage colony-stimulating factor (GM-CSF)15 Growth factor Pancreatic Cancer (mice) Inhibition of proliferation
Neutralizing Ab to granulocyte colony-stimulating factor (G-CSF)42 Growth factor Colon carcinoma (mice) Inhibition of proliferation
Colony stimulating factor 1 receptor (CSF1R) & protein kinase (KIT) tyrosine kinase inhibitor (TKI) (PLX3397)97 Growth factor Breast cancer (human) Inhibition of TAM recruitment
CSF1R antagonist (GW2580)96 Growth factor Lung carcinoma & prostate cancer (mice) Inhibition of MDSC & macrophage proliferation
Vascular endothelial growth factor (VEGF)-trap98 Growth factor Solid tumours (human) No activity
Ab to VEGF (Avastin)185 Growth factor Metastatic renal cell carcinoma (RCC) (human) Weak inhibition of proliferation
Ab to interleukin 6 receptor (IL-6R) & gemcitabine141 Interleukin & Cytotoxic Carcinoma (mice) Inhibits accumulation of Mo- & G-MDSCs
CXC chemokine receptor 2 (CXCR2) (S-265610) & CXCR4 (AMD3100) antagonists151 Chemokine mammary cancer (mice) Altered recruitment of iMCs to the tumour
Neutralizing Ab to chemokine (C-C motif) ligand 2 (CCL2)192 Chemokine Mammary carcinoma (mouse & human xenografts) Targeting inflammatory monocytes & macrophages
Gemcitabine145 Cytotoxic Lung & mammary cancer (mice) Inhibition of proliferation
Doxorubicin-cyclophosphamide10 Cytotoxic Breast cancer (human) Weak inhibition of proliferation
5-fluorouracil142 Cytotoxic Thymoma (mice) Inhibition of MDSC expansion
Docetaxel143 Cytotoxic Mammary carcinoma (mice) Inhibition of MDSC expansion & macrophage polarization to M1 phenotype
Cyclooxygenase 2 (COX2) inhibitor (Celebrex)181 Enzyme inhibitor (Inhib.) Mammary carcinoma (mice) Inhibition of proliferation/activation
Amino-biphosphonate180, 193 Enzyme inhib. Mammary tumours (mice) Inhibition of proliferation
Phosphodiesterase-5 (PDE5) inhibitors144 Enzyme inhib. Mammary and colon carcinoma and fibrosarcoma (mice) Inhibition of proliferation & T-cell suppression
TKI (sunitinib)67, 95, 182, 184 Signal inhib. RCC (human) Inhibition of proliferation
Peroxisome proliferator–activated receptor-g (PPARg) inhibitor179 Signal inhib. Carcinoma & myeloid sarcoma (mice) Induces proliferation of MDSCs