Aspernigrins with anti-HIV-1 activities from the marine-derived fungus Aspergillus niger SCSIO Jcsw6F30

Bioorg Med Chem Lett. 2016 Jan 15;26(2):361-365. doi: 10.1016/j.bmcl.2015.12.005. Epub 2015 Dec 7.

Abstract

Two new 2-benzylpyridin-4-one containing metabolites, aspernigrins C (3) and D (4), together with six known compounds (1, 2, and 5-8), were isolated from the marine-derived fungus Aspergillus niger SCSIO Jcsw6F30. The structures of the new compounds were determined by NMR, MS, and optical rotation analyses. All the isolated compounds were evaluated for their inhibitory activities against infection with HIV-1 SF162 in TZM-bl cells. Malformin C (5) showed the strongest anti-HIV-1 activity with IC50 of 1.4±0.06μM (selectivity index, 11.4), meanwhile aspernigrin C (3) also exhibited potent activity with IC50 of 4.7±0.4μM (selectivity index, 7.5).

Keywords: Aspergillus niger; Aspernigrins; HIV-1 SF162; Malformin C.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-HIV Agents / chemistry
  • Anti-HIV Agents / isolation & purification
  • Anti-HIV Agents / pharmacology*
  • Aspergillus niger / chemistry*
  • Cell Line
  • Drug Screening Assays, Antitumor
  • HIV Infections / drug therapy*
  • HIV-1 / drug effects*
  • Humans
  • Niacinamide / analogs & derivatives*
  • Niacinamide / chemistry
  • Niacinamide / isolation & purification
  • Niacinamide / pharmacology
  • Pyridones / chemistry
  • Pyridones / isolation & purification
  • Pyridones / pharmacology*

Substances

  • Anti-HIV Agents
  • Pyridones
  • aspernigrin C
  • Niacinamide