Synthesis and antiproliferative activity of 6BrCaQ-TPP conjugates for targeting the mitochondrial heat shock protein TRAP1

  • Clelia Mathieu
  • , Quentin Chamayou
  • , Thi Thanh Hyen Luong
  • , Delphine Naud
  • , Florence Mahuteau-Betzer
  • , Mouad Alami
  • , Elias Fattal
  • , Samir Messaoudi
  • , Juliette Vergnaud-Gauduchon

Research output: Contribution to journalArticlepeer-review

Abstract

A series of 6BrCaQ-Cn-TPP conjugates 3a-f and 5 was designed and synthesized as a novel class of TRAP1 inhibitors. Compound 3a displayed an excellent anti-proliferative activity with mean GI50 values at a nanomolar level in a diverse set of human cancer cells (GI50 = 0.008–0.30 μM) including MDA-MB231, HT-29, HCT-116, K562, and PC-3 cancer cell lines. Moreover, the best lead compound 6BrCaQ-C10-TPP induces a significant mitochondrial membrane disturbance combined to a regulation of HSP and partner protein levels as a first evidence that his mechanism of action involves the TRAP-1 mitochondrial Hsp90 machinery.

Original languageEnglish
Article number114052
JournalEuropean Journal of Medicinal Chemistry
Volume229
DOIs
Publication statusPublished - 5 Feb 2022
Externally publishedYes

Keywords

  • 6BrCaQ
  • Anti-Proliferative activity
  • HSP90
  • Mitochondrial targeting
  • TRAP1
  • Triphenylphosphonium TPP

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