Design, synthesis and biological evaluation of 2,4-pyrimidinediamine derivatives as ALK and HDACs dual inhibitors for the treatment of ALK addicted cancer

J Enzyme Inhib Med Chem. 2022 Dec;37(1):2512-2529. doi: 10.1080/14756366.2022.2121822.

Abstract

Simultaneous inhibition of histone deacetylases (HDACs) and anaplastic lymphoma kinase (ALK) could enhance therapeutic activity against ALK addicted cancer cells. Herein, a new series of 2,4-pyrimidinediamine derivatives as ALK and HDACs dual inhibitors were designed, synthesised and evaluated. Compound 12a which possessed good inhibitory potency against ALKwt and HDAC1, exhibited stronger antiproliferative activity than Ceritinib on ALK positive cancer cell lines though inducing cell apoptosis and cell cycle arrest in vitro and in vivo. In addition, the mechanism is further verified by the down-regulation of p-ALK protein, and up-regulation of Acetylated histone 3 (Ac-H3) protein in cancer cells. These results suggested that 12a would be a potential candidate for the ALK addicted cancer treatment.

Keywords: 2,4-pyrimidinediamine; ALK; ALK addicted; HDACs; dual inhibitors.

MeSH terms

  • Anaplastic Lymphoma Kinase
  • Apoptosis
  • Cell Line, Tumor
  • Histone Deacetylase Inhibitors* / pharmacology
  • Histone Deacetylases
  • Neoplasms*

Substances

  • Histone Deacetylase Inhibitors
  • Anaplastic Lymphoma Kinase
  • Histone Deacetylases

Grants and funding

We appreciate the financial support from National Natural Science Foundation of China [No. 21907013, and No. 81172097] and the Scientific and Technological Research Program of Chongqing Municipal Education Commission [KJQN201900431].