A novel photocaged B-RafV600E inhibitor toward precise melanoma treatment

Bioorg Med Chem Lett. 2022 May 15:64:128683. doi: 10.1016/j.bmcl.2022.128683. Epub 2022 Mar 17.

Abstract

Photoinduced drug release can reduce systemic side effects by releasing active drugs with high spatiotemporal accuracy, representing a promising strategy for precise cancer therapy. Here we designed and synthesized a novel photocaged B-RafV600E inhibitor 2, which, upon UV irradiation, could release a potent B-RafV600E inhibitor 1. Accordingly, once activated by the UV light, compound 2 could potently inhibit the proliferation of melanoma cells bearing B-RafV600E mutant while sparing melanoma cells expressing wild-type B-Raf, and could dose-dependently suppress the activation of the MAPK signaling pathway. Notably, the UV-mediated active component release and the resulting antiproliferative effects of compound 2 could be recapitulated when exposed to the sunlight, greatly enhancing its practicality. This photocaged B-RafV600E inhibitor 2 might serve as a novel therapeutic agent toward precise melanoma treatment.

Keywords: Melanoma; Photocaged B-Raf(V600E) inhibitor; Photoinduced drug release; Precise treatment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line, Tumor
  • Cell Proliferation
  • Humans
  • MAP Kinase Signaling System
  • Melanoma* / drug therapy
  • Protein Kinase Inhibitors / pharmacology
  • Protein Kinase Inhibitors / therapeutic use
  • Proto-Oncogene Proteins B-raf
  • Signal Transduction

Substances

  • Protein Kinase Inhibitors
  • Proto-Oncogene Proteins B-raf