Austalides V and W, new meroterpenoids from the fungus Aspergillus ustus and their antitumor activities

Bioorg Med Chem Lett. 2019 Nov 15;29(22):126708. doi: 10.1016/j.bmcl.2019.126708. Epub 2019 Oct 4.

Abstract

Two new austalide meroterpenoids, named austalides V and W (1 and 2), were isolated from the fungus Aspergillus ustus VKM F-4692. Their structures were elucidated by extensive spectroscopic analysis and by comparison with related known compounds. The main structural feature of both compounds is a tetrahydrofuranyl ring (G), a structural fragment, first found in austalides. Austalides V (1) and W (2) were able to inhibit the propagation of prostate and bladder cancer cells; this biologic activity is possibly related to the inhibition of a number of key pathways regulating cell growth and migration.

Keywords: AKT-mTORC1 signaling pathway; Aspergillus ustus; Austalide; Fungus; Prostate and bladder cancer cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / isolation & purification
  • Antineoplastic Agents / pharmacology*
  • Aspergillus / chemistry*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Humans
  • Molecular Structure
  • Structure-Activity Relationship
  • Terpenes / chemistry
  • Terpenes / isolation & purification
  • Terpenes / pharmacology*

Substances

  • Antineoplastic Agents
  • Terpenes