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Marine Biotechnology

, Volume 13, Issue 5, pp 883–892 | Cite as

Anti-protease and Immunomodulatory Activities of Bacteria Associated with Caribbean Sponges

  • Paula Tabares
  • Sheila M. Pimentel-Elardo
  • Tanja Schirmeister
  • Thomas Hünig
  • Ute HentschelEmail author
Original Article

Abstract

Marine sponges and their associated bacteria have been proven to be a rich source of novel secondary metabolites with therapeutic usefulness in cancer, infection, and autoimmunity. In this study, 79 strains belonging to 20 genera of the order Actinomycetales and seven strains belonging to two genera of the order Sphingomonadales were cultivated from 18 different Caribbean sponges and identified by 16S rRNA gene sequencing. Seven of these strains are likely to represent novel species. Crude extracts from selected strains were found to exhibit protease inhibition against cathepsins B and L, rhodesain, and falcipain-2 as well as immunomodulatory activities such as induction of cytokine release by human peripheral blood mononuclear cells. These results highlight the significance of marine sponge-associated bacteria to produce bioactive secondary metabolites with therapeutic potential in the treatment of infectious diseases and disorders of the immune system.

Keywords

Actinomycetes Sphingomonads Marine sponge Anti-protease Immunomodulatory Phylogenetic analysis 

Notes

Acknowledgments

We gratefully acknowledge H. Angermeier (U. Würzburg) and J. Pawlik (U. North Carolina, Wilmington) for sponge collection from the Bahamas, C. Heindl, S. Berr, and C. Gernert for technical assistance in the laboratory and P. Römer for the introduction into the immunological techniques (U. Würzburg). We furthermore thank S. Zea (INVEMAR, Santa Marta, Colombia) for help in sponge identification as well as L. Veloza and L.E. Ramírez (Universidad Tecnológica de Pereira, Colombia) for providing the laboratory conditions for the cultivation of the Colombian strains. Financial support was provided by a doctoral fellowship (Graduate College “Immunomodulation GK 520” funded by the DFG) to P.T. and the DFG (SFB 630 TP A5) to U.H.

Supplementary material

10126_2010_9349_MOESM1_ESM.doc (26 kb)
Supplementary Table 1 16S rRNA gene based phylogenetic affiliation of actinomycete isolates (DOC 103 kb)
10126_2010_9349_MOESM2_ESM.doc (15 kb)
Supplementary Table 2 16S rRNA gene based phylogenetic affiliation of sphingomonad isolates (DOC 30.0 kb)

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Paula Tabares
    • 1
  • Sheila M. Pimentel-Elardo
    • 1
  • Tanja Schirmeister
    • 2
  • Thomas Hünig
    • 3
  • Ute Hentschel
    • 1
    Email author
  1. 1.Julius-von-Sachs-Institute for Biological SciencesUniversity of WürzburgWürzburgGermany
  2. 2.Institute for Pharmacy and Food ChemistryUniversity of WürzburgWürzburgGermany
  3. 3.Institute for Virology and ImmunobiologyUniversity of WürzburgWürzburgGermany

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