Abstract
Neuropilin-1/-2 (+33 NRPs), VEGF-A165 co-receptors, are over-expressed during cancer progression. Thus, NRPs targeted drug development is challenged using a multistep in silico/in vitro screening procedure. The first fully non-peptidic VEGF-A165/NRPs protein-protein interaction antagonist (IC50=34μM) without effect on pro-angiogenic kinases has been identified (compound-1). This hit showed breast cancer cells anti-proliferative activity (IC50=0.60μM). Compound-1 treated NOG-xenografted mice significantly exerted tumor growth inhibition, which is correlated with Ki-67low expression and apoptosis. Furthermore, CD31+/CD34+ vessels are reduced in accordance with HUVEC-tube formation inhibition (IC50=0.20μM). Taking together, compound-1 is the first fully organic inhibitor targeting NRPs.
Original language | English |
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Pages (from-to) | 120-127 |
Number of pages | 8 |
Journal | Cancer Letters |
Volume | 349 |
Issue number | 2 |
DOIs | |
State | Published - Jul 28 2014 |
Keywords
- Animals
- Antineoplastic Agents/chemistry
- Apoptosis/drug effects
- Breast Neoplasms/drug therapy
- Cell Line, Tumor
- Disease Progression
- Drug Evaluation, Preclinical
- Female
- Human Umbilical Vein Endothelial Cells/drug effects
- Humans
- Ligands
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Mice, Transgenic
- Models, Molecular
- Molecular Docking Simulation
- Neuropilins/antagonists & inhibitors
- Peptide Fragments/antagonists & inhibitors
- Small Molecule Libraries/chemistry
- Structure-Activity Relationship
- Vascular Endothelial Growth Factor A/antagonists & inhibitors
- Xenograft Model Antitumor Assays