Discovery and optimization of tetrahydropyrido[4,3-d]pyrimidine derivatives as novel ATX and EGFR dual inhibitors

Bioorg Med Chem. 2018 May 1;26(8):1784-1796. doi: 10.1016/j.bmc.2018.02.023. Epub 2018 Feb 21.

Abstract

In order to discovery autotaxin (ATX) and EGFR dual inhibitors with potential therapeutic effect on IPF-LC, a series of novel tetrahydropyrido[4,3-d]pyrimidine derivatives possessing semicarbazones moiety were designed and synthesized. The preliminary investigation at the cellular level indicated six compounds (7h, 8a, 8c, 8d, 9a and 9d) displayed preferable anti-tumor activities against A549, H1975, MKN-45 and SGC cancer cells. Further enzymatic assay against EGFR kinase identified 8a and 9a as promising hits with IC50 values of 18.0 nM and 24.2 nM. Meanwhile, anti-inflammatory assessment against cardiac fibroblasts (CFs) cell and RAW264.7 macrophages led to the discovery of candidate 9a, which exhibited considerable potency both on inhibition rate of 77% towards CFs and on reducing NO production to 1.05 μM at 10 μg/mL. Simultaneously, 9a indicated preferable potency towards ATX with IC50 value of 29.1 nM. Significantly, a RT-PCR study revealed the function of 9a to down-regulate the mRNA expression of TGF-β and TNF-α in a dose-dependent manner. The molecular docking analysis together with the pharmacological studies validated 9a as a potential ATX and EGFR dual inhibitor for IPF-LC treatments.

Keywords: ATX; EGFR; IPF-LC; Inhibitor; Semicarbazones; THPPs.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents, Non-Steroidal / chemical synthesis
  • Anti-Inflammatory Agents, Non-Steroidal / chemistry
  • Anti-Inflammatory Agents, Non-Steroidal / pharmacology*
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Line
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Drug Screening Assays, Antitumor
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • ErbB Receptors / antagonists & inhibitors*
  • ErbB Receptors / metabolism
  • Fibroblasts / drug effects
  • Humans
  • Macrophages / drug effects
  • Mice
  • Molecular Docking Simulation
  • Molecular Structure
  • Phosphoric Diester Hydrolases / metabolism*
  • Pyridines / chemical synthesis
  • Pyridines / chemistry
  • Pyridines / pharmacology*
  • Pyrimidines / chemical synthesis
  • Pyrimidines / chemistry
  • Pyrimidines / pharmacology*
  • RAW 264.7 Cells
  • Real-Time Polymerase Chain Reaction
  • Structure-Activity Relationship

Substances

  • Anti-Inflammatory Agents, Non-Steroidal
  • Antineoplastic Agents
  • Enzyme Inhibitors
  • Pyridines
  • Pyrimidines
  • tetrahydropyrido(4,3-d)pyrimidine
  • EGFR protein, human
  • ErbB Receptors
  • Phosphoric Diester Hydrolases
  • alkylglycerophosphoethanolamine phosphodiesterase