Synchrotron-based FTIR evaluation of biochemical changes in cancer and noncancer cells induced by brominated marine coelenteramine

Arch Biochem Biophys. 2023 Jul 15:743:109660. doi: 10.1016/j.abb.2023.109660. Epub 2023 May 30.

Abstract

The mode of action toward gastric cancer cells of brominated Coelenteramine, an analogue of a metabolic product of a marine bioluminescent reaction, was investigated by synchrotron radiation-based Fourier Transform Infrared spectrocopy (FTIR). This method revealed that the anticancer activity of brominated Coelenteramine is closely connected with cellular lipids, by affecting their organization and composition. More specifically, there is an increasing extent of oxidative stress, which results in changes in membrane polarity, lipid chain packing and lipid composition. However, this effect was not observed in a noncancer cell line, helping to explain its selectivity profile. Thus, synchrotron radiation-based FTIR helped to identify the potential of this Coelenteramine analogue in targeting membrane lipids, while proving to be a powerful technique to probe the mechanism of anticancer drugs.

Keywords: Anticancer therapy; Bioluminescence; Coelenteramine; Coelenterazine; FTIR; Synchrotron radiation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Humans
  • Lipids
  • Neoplasms*
  • Oxidative Stress
  • Spectroscopy, Fourier Transform Infrared / methods
  • Synchrotrons*

Substances

  • Lipids