Meroantarctines A-C, Meroterpenoids with Rearranged Skeletons from the Alga-Derived Fungus Penicillium antarcticum KMM 4685 with Potent p-Glycoprotein Inhibitory Activity

J Nat Prod. 2022 Dec 23;85(12):2746-2752. doi: 10.1021/acs.jnatprod.2c00677. Epub 2022 Nov 22.

Abstract

New meroterpenoids, meroantarctines A-C (1-3), with unique 6/5/6/6, 6/5/6/5/6, and 6/5/6/5 polycyclic systems were isolated from the alga-derived fungus Penicillium antarcticum KMM 4685. Their structures were elucidated by spectroscopic methods, X-ray diffraction, and quantum chemical calculations. A biogenetic pathway for 1-3 was proposed. Meroantarctines A-C (1-3) inhibited p-glycoprotein activity and could resensitize drug-resistant cancer cells to docetaxel.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • ATP Binding Cassette Transporter, Subfamily B
  • Fungi*
  • Molecular Structure
  • Penicillium* / chemistry
  • Terpenes / chemistry
  • X-Ray Diffraction

Substances

  • ATP Binding Cassette Transporter, Subfamily B
  • Terpenes

Supplementary concepts

  • Penicillium antarcticum