Planta Med 2009; 75(14): 1523-1525
DOI: 10.1055/s-0029-1185835
Pharmacology
Letter
© Georg Thieme Verlag KG Stuttgart · New York

Antimicrobial, Antiproliferative, Cytotoxic, and Tau Inhibitory Activity of Rubellins and Caeruleoramularin Produced by the Phytopathogenic Fungus Ramularia collo-cygni

Sebastian Miethbauer1 , Friedemann Gaube1 , Ute Möllmann2 , Hans-Martin Dahse2 , Michaela Schmidtke3 , Manfred Gareis4 , Marcus Pickhardt5 , Bernd Liebermann1
  • 1Institute of Pharmacy, University of Jena, Jena, Germany
  • 2Leibniz Institute for Natural Product Research and Infection Biology, Hans-Knöll-Institute, Jena, Germany
  • 3Institute of Virology and Antiviral Therapy, University of Jena, Jena, Germany
  • 4Institute of Microbiology and Biotechnology, Max-Rubner-Institute, Federal Research Institute for Nutrition and Food, Kulmbach, Germany
  • 5Max-Planck-Unit for Structural Molecular Biology, Hamburg, Germany
Further Information

Publication History

received February 23, 2009 revised May 22, 2009

accepted May 29, 2009

Publication Date:
29 June 2009 (online)

Abstract

Photodynamically active anthraquinone derivatives produced by the phytopathogenic fungus Ramularia collo-cygni are known to cause a barley leaf-spot disease, but data about light-dependent and independent bioactivity have been sparse to date. We therefore conducted for the first time a broad bioactivity profiling of rubellins B, C, D, and E and caeruleoramularin. Antibacterial but not antiviral activity is reported with light-dependent increase. Furthermore, when tested without illumination, compounds exerted antiproliferative and cytotoxic activity in a series of human tumor cell lines. Inhibition of tau protein assembly was observed as well.

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Friedemann Gaube

Department of Pharmaceutical Biology
Institute of Pharmacy
University of Jena

Semmelweisstr. 10

07743 Jena

Germany

Phone: + 49 36 41 94 98 44

Fax: + 49 36 41 94 98 42

Email: Friedemann.Gaube@uni-jena.de

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