Screening in serum-derived medium reveals differential response to compounds targeting metabolism

Cell Chem Biol. 2023 Sep 21;30(9):1156-1168.e7. doi: 10.1016/j.chembiol.2023.08.007. Epub 2023 Sep 8.

Abstract

A challenge for screening new anticancer drugs is that efficacy in cell culture models is not always predictive of efficacy in patients. One limitation of standard cell culture is a reliance on non-physiological nutrient levels, which can influence cell metabolism and drug sensitivity. A general assessment of how physiological nutrients affect cancer cell response to small molecule therapies is lacking. To address this, we developed a serum-derived culture medium that supports the proliferation of diverse cancer cell lines and is amenable to high-throughput screening. We screened several small molecule libraries and found that compounds targeting metabolic enzymes were differentially effective in standard compared to serum-derived medium. We exploited the differences in nutrient levels between each medium to understand why medium conditions affected the response of cells to some compounds, illustrating how this approach can be used to screen potential therapeutics and understand how their efficacy is modified by available nutrients.

Keywords: Cancer cell metabolism; Culture media; Drug sensitivity; High-throughput screening; Nutrient environment; Phenotypic drug screening; Physiologic media.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Cell Culture Techniques*
  • Cell Line
  • High-Throughput Screening Assays*
  • Humans
  • Small Molecule Libraries / pharmacology

Substances

  • Small Molecule Libraries