2. Academic Validation
  3. Anti-inflammatory drimane sesquiterpene lactones from an Aspergillus species

Anti-inflammatory drimane sesquiterpene lactones from an Aspergillus species

  • Bioorg Med Chem. 2014 Jun 1;22(11):2912-8. doi: 10.1016/j.bmc.2014.04.015.
Silke Felix 1,  Louis P Sandjo 2,  Till Opatz 3,  Gerhard Erkel 4
Affiliations

Affiliations

  • 1 Institute of Biotechnology and Drug Research (IBWF), Erwin-Schrödinger-Strasse 56, D-67663 Kaiserslautern, Germany.
  • 2 Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
  • 3 Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany. Electronic address: opatz@uni-mainz.de.
  • 4 Department of Molecular Biotechnology and Systems Biology, University of Kaiserslautern, Paul-Ehrlich-Strasse 23, D-67663 Kaiserslautern, Germany. Electronic address: erkel@bio.uni-kl.de.
PMID: 24792812 DOI: 10.1016/j.bmc.2014.04.015
Abstract

IFN-γ inducible protein 10 (IP-10, CXCL10) is a 10 kDa chemokine, which is secreted from various cell types after exposure to pro-inflammatory stimuli. This chemokine is a ligand for the CXCR3 receptor and regulates immune responses by activating and recruiting leukocytes such as T cells, eosinophils, monocytes, and NK cells to sites of inflammation. Altered expression of CXCL10 has been associated with chronic inflammatory and infectious diseases and therefore CXCL10 represents a promising target for the development of new anti-inflammatory drugs. In a search for inhibitors of CXCL10 promoter activity, three structurally related drimane sesquiterpene lactones (compounds 1-3) were isolated from fermentations of an Aspergillus species. Compounds 1 and 2 inhibited the IFN-γ/TNF-α/IL-1β induced CXCL10 promoter activity in transiently transfected human DLD-1 colon carcinoma cells in a dose-dependent manner with IC50 values of 12.4 μM for 1 and 55 μM for 2, whereas 3 was devoid of any biological activity. Moreover, compounds 1 and 2 reduced CXCL10 mRNA levels and synthesis in IFN-γ/TNF-α/IL-1β stimulated DLD-1 cells.

Keywords

CXCL10; Fungal metabolites; Inflammation; Inhibitor.

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