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Perfluorinated HDAC inhibitors as selective anticancer agents.

James W Walton1, Jasmine M Cross, Tina Riedel

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Summary

New histone deacetylase inhibitors with alkyl chains show potent antiproliferative activity against cancer cells, outperforming SAHA. These compounds also demonstrate cancer cell selectivity and potential for combination with hyperthermia.

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Area of Science:

  • Medicinal Chemistry
  • Cancer Biology
  • Pharmacology

Background:

  • Histone deacetylase inhibitors (HDACi) are an important class of anticancer agents.
  • SAHA (Vorinostat) is a clinically approved HDACi, but its efficacy and selectivity can be improved.
  • Targeting cancer cells selectively over healthy cells is crucial for reducing side effects.

Purpose of the Study:

  • To synthesize and evaluate novel histone deacetylase inhibitors.
  • To assess the in vitro antiproliferative activity and cancer cell selectivity of these new compounds.
  • To explore the potential of SAHA in combination with mild hyperthermia.

Main Methods:

  • Synthesis of novel compounds incorporating alkyl or perfluorinated alkyl chains.
  • In vitro antiproliferative assays against cancer and healthy cell lines.
  • Comparison of activity with SAHA.
  • Evaluation of SAHA activity under mild hyperthermia conditions.

Main Results:

  • Several new compounds exhibited greater in vitro antiproliferative activity than SAHA.
  • The novel compounds demonstrated up to 5-fold greater activity against cancer cells compared to healthy cells.
  • SAHA showed greater activity against the tested healthy cell line than the cancer cell line.
  • SAHA's activity was enhanced under mild hyperthermia.

Conclusions:

  • Novel HDAC inhibitors with alkyl chains possess potent antiproliferative activity and cancer cell selectivity.
  • These compounds represent promising candidates for cancer therapy.
  • Mild hyperthermia may enhance the efficacy of SAHA, suggesting potential for combination therapy.