Development of novel chromeno[4,3-c]pyrazol-4(2H)-one derivates bearing sulfonylpiperazine as antitumor inhibitors targeting PI3Kα

Eur J Med Chem. 2019 Nov 15:182:111630. doi: 10.1016/j.ejmech.2019.111630. Epub 2019 Aug 18.

Abstract

PI3K signal pathway plays a vital role in cellular functions and becomes an attractive approach for cancer therapy. Herein, a new series of novel chromeno[4,3-c]pyrazol-4(2H)-one derivatives bearing sulfonylpiperazine based on the PI3K inhibitors and our previous research. They were screened for their PI3K inhibitory activities and anticancer effects in vitro. Biological studies indicated that compound 7m revealed the remarkable antiproliferative activity (IC50 ranging from 0.03 to 0.09 μM) against four cancer cell lines (A549, Huh7, HL60 and HCT-116). Besides, compound 7m displayed a certain selective for PI3Kα (IC50 = 0.009 μM) over PI3Kβ, γ and δ, and meanwhile, it can remarkable decreased the expression level of p-Akt (Ser473) and p-S6K. In addition, compound 7m could not only induce HCT-116 cell arrest at G1 phase in a dose-dependent manner, but also induce cell apoptosis via upregulation of Bax and cleaved-caspase 3/9, and downregulation of Bcl-2. Besides, compound 7m can remarkably inhibit the growth of tumor in vivo. The above results suggested that compound 7m could be considered as a promising PI3Kα inhibitor.

Keywords: Antitumor; PI3Kα inhibitor; Sulfonylpiperazine; chromeno[4,3-c]pyrazol-4(2H)-one derivates.

MeSH terms

  • Animals
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Apoptosis / drug effects
  • Cell Proliferation / drug effects
  • Chromones / chemical synthesis
  • Chromones / chemistry
  • Chromones / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Development
  • Drug Screening Assays, Antitumor
  • Humans
  • Mice
  • Models, Molecular
  • Molecular Structure
  • Neoplasms, Experimental / drug therapy
  • Neoplasms, Experimental / metabolism
  • Neoplasms, Experimental / pathology
  • Phosphatidylinositol 3-Kinases / metabolism
  • Phosphoinositide-3 Kinase Inhibitors*
  • Piperazine / chemistry
  • Piperazine / pharmacology*
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Structure-Activity Relationship
  • Sulfinic Acids / chemistry
  • Sulfinic Acids / pharmacology*
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents
  • Chromones
  • Phosphoinositide-3 Kinase Inhibitors
  • Protein Kinase Inhibitors
  • Sulfinic Acids
  • chromeno(4,3-c)pyrazol-4-one
  • Piperazine