Discovery of novel ceramide analogs with favorable pharmacokinetic properties and combination with AKT inhibitor against colon cancer

Eur J Med Chem. 2021 Apr 5:215:113274. doi: 10.1016/j.ejmech.2021.113274. Epub 2021 Feb 7.

Abstract

Ceramides have emerged as potential therapeutic option with novel mechanism to affect the proliferation, differentiation, senescence, and apoptosis of cancer cells through regulation of multiple signal transduction. Aiming at the improvement of the apoptosis activity and pharmacokinetic profiles of ceramides, a novel series of ceramide analogs were developed through structure simplification and conformation restriction. Among them, compound 12 bearing an alkoxyl naphthyl motif, with favorable rat pharmacokinetic properties, showed better anti-proliferative activity against various colon cancer cells (IC50 ∼20 μM) than other ceramide analogues, as well as the synergistic effect combined with AKT inhibitor MK2206. Additionally, we demonstrated that this combination therapy promoted caspase 3-dependent apoptotic pathway and intensified cell cycle arrest in the G0/G1 phase. Furthermore, the combination of compound 12 and MK2206 displayed synergistic anti-tumor effect in vivo.

Keywords: AKT inhibitor; Ceramide analogs; Colon cancer; Combination therapy; MK2206.

MeSH terms

  • Animals
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / pharmacokinetics
  • Antineoplastic Agents / therapeutic use*
  • Apoptosis / drug effects
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Ceramides / chemical synthesis
  • Ceramides / pharmacokinetics
  • Ceramides / therapeutic use*
  • Drug Design
  • Drug Synergism
  • Female
  • G1 Phase Cell Cycle Checkpoints / drug effects
  • Heterocyclic Compounds, 3-Ring / therapeutic use*
  • Humans
  • Mice
  • Mice, Inbred BALB C
  • Naphthalenes / chemical synthesis
  • Naphthalenes / pharmacokinetics
  • Naphthalenes / therapeutic use
  • Neoplasms / drug therapy*
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / pharmacokinetics
  • Protein Kinase Inhibitors / therapeutic use*
  • Proto-Oncogene Proteins c-akt / antagonists & inhibitors*
  • Reactive Oxygen Species / metabolism

Substances

  • Antineoplastic Agents
  • Ceramides
  • Heterocyclic Compounds, 3-Ring
  • MK 2206
  • Naphthalenes
  • Protein Kinase Inhibitors
  • Reactive Oxygen Species
  • Proto-Oncogene Proteins c-akt