Synthesis and evaluation of 18F labeled crizotinib derivative [18F]FPC as a novel PET probe for imaging c-MET-positive NSCLC tumor

Bioorg Med Chem. 2020 Aug 1;28(15):115577. doi: 10.1016/j.bmc.2020.115577. Epub 2020 May 30.

Abstract

c-MET-positive NSCLC is an important subtype accounting for about 5%~22% of lung cancer. NSCLC patients with activating c-MET are intensively sensitive to c-MET selective receptor tyrosine kinase (RTK) inhibitors, so we aimed to develop a specific PET probe targeting to c-MET-positive NSCLC for potential patients screened by PET/CT. Herein, PET tracer 18F-radiolabeled crizotinib derivative ([18F]FPC) was successfully achieved through a simple one-step 18F-labeling method. [18F]FPC PET imaging on c-MET-positive (as well as blocking group) and negative NSCLC models were further evaluated, and results showed that [18F]FPC was effective as a PET imaging probe that targeted c-MET-positive tumor. Therefore, [18F]FPC could be a potential PET imaging probe for NSCLC tumor which was sensitive to c-MET-TKIs. By virtue of this property, it will benefit NSCLC patients for c-MET-TKI treatment.

Keywords: Cellular-mesenchymal to epithelial transition factor (c-MET); Crizotinib; Non-small-cell lung carcinoma (NSCLC); Positron emission tomography (PET); [(18)F]FPC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Carcinoma, Non-Small-Cell Lung / diagnostic imaging*
  • Carcinoma, Non-Small-Cell Lung / metabolism
  • Cell Line, Tumor
  • Contrast Media / chemical synthesis
  • Contrast Media / chemistry*
  • Contrast Media / pharmacokinetics
  • Crizotinib / analogs & derivatives*
  • Crizotinib / chemical synthesis
  • Crizotinib / pharmacokinetics
  • Fluorine Radioisotopes / chemistry
  • Humans
  • Male
  • Mice, Inbred BALB C
  • Positron-Emission Tomography
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacokinetics
  • Proto-Oncogene Proteins c-met / antagonists & inhibitors
  • Proto-Oncogene Proteins c-met / metabolism*
  • Radiopharmaceuticals / chemical synthesis
  • Radiopharmaceuticals / chemistry*
  • Radiopharmaceuticals / pharmacokinetics
  • Tissue Distribution

Substances

  • Contrast Media
  • Fluorine Radioisotopes
  • Protein Kinase Inhibitors
  • Radiopharmaceuticals
  • Crizotinib
  • MET protein, human
  • Proto-Oncogene Proteins c-met
  • Fluorine-18