Discovery of pyridine- sulfonamide hybrids as a new scaffold for the development of potential VEGFR-2 inhibitors and apoptosis inducers

Bioorg Chem. 2021 Jun:111:104842. doi: 10.1016/j.bioorg.2021.104842. Epub 2021 Mar 22.

Abstract

New sulfonamide derivatives have been synthesized and tested as antitumor agents. All newly synthesized compounds were tested in vitro against 60 lines of human cancer cells. Compound VIIb shows broad-spectrum activity with a mean inhibition value of 91.67% against all cell lines. It exhibited potent anticancer activity with GI50 values of 1.06-8.92 μM relative to most of the tested cancer cell lines. Compound VIIb has been tested for enzyme inhibition activity toward vascular endothelial growth factor receptor 2, where VEGFR-2 was potently inhibited at a lower IC50 value of 3.6 μM, compared with sorafenib (IC50 = 4.8 μM). Hybrid VIIb was also able to induce cell cycle disturbance and apoptosis in Renal UO-31 cells, as shown by DNA flow cytometry and Annexin V-FITC/PI assays. It has also revealed lower Bcl-2 protein expression anti-apoptotic levels and higher BAX, p53, and caspases 3 expression levels.

Keywords: Antitumor; Apoptosis; Cell cycle; Sulfonamides; Vascular endothelial growth factor receptor.

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Apoptosis / drug effects*
  • Cell Cycle / drug effects
  • Cell Line, Tumor
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Drug Screening Assays, Antitumor
  • Humans
  • Molecular Docking Simulation
  • Molecular Structure
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Pyridines / chemistry
  • Pyridines / pharmacology*
  • Structure-Activity Relationship
  • Sulfonamides / chemistry
  • Sulfonamides / pharmacology*
  • Vascular Endothelial Growth Factor Receptor-2 / antagonists & inhibitors*
  • Vascular Endothelial Growth Factor Receptor-2 / metabolism

Substances

  • Antineoplastic Agents
  • Protein Kinase Inhibitors
  • Pyridines
  • Sulfonamides
  • KDR protein, human
  • Vascular Endothelial Growth Factor Receptor-2
  • pyridine