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Calabro K, Kalahroodi EL, Rodrigues D, Díaz C, Cruz MDL, Cautain B, Laville R, Reyes F, Pérez T, Soussi B, Thomas OP. Poecillastrosides, Steroidal Saponins from the Mediterranean Deep-Sea Sponge Poecillastra compressa (Bowerbank, 1866). Mar Drugs 2017; 15:md15070199. [PMID: 28672858 PMCID: PMC5532641 DOI: 10.3390/md15070199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/15/2017] [Accepted: 06/21/2017] [Indexed: 11/29/2022] Open
Abstract
The first chemical investigation of the Mediterranean deep-sea sponge Poecillastra compressa (Bowerbank, 1866) led to the identification of seven new steroidal saponins named poecillastrosides A–G (1–7). All saponins feature an oxidized methyl at C-18 into a primary alcohol or a carboxylic acid. While poecillastrosides A–D (1–4) all contain an exo double bond at C-24 of the side-chain and two osidic residues connected at O-2′, poecillastrosides E–G (5–7) are characterized by a cyclopropane on the side-chain and a connection at O-3′ between both sugar units. The chemical structures were elucidated through extensive spectroscopic analysis (High-Resolution Mass Spectrometry (HRESIMS), 1D and 2D NMR) and the absolute configurations of the sugar residues were assigned after acidic hydrolysis and cysteine derivatization followed by LC-HRMS analyses. Poecillastrosides D and E, bearing a carboxylic acid at C-18, were shown to exhibit antifungal activity against Aspergillus fumigatus.
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Affiliation(s)
- Kevin Calabro
- School of Chemistry, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland.
- Cosmo International Ingredients, 855 avenue du Docteur Maurice Donat, 06250 Mougins, France.
| | - Elaheh Lotfi Kalahroodi
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
| | - Daniel Rodrigues
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale, CNRS-Aix-Marseille University, IRD-University Avignon, Station Marine d'Endoume, rue de la batterie des lions, 13007 Marseille, France.
| | - Caridad Díaz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Rémi Laville
- Cosmo International Ingredients, 855 avenue du Docteur Maurice Donat, 06250 Mougins, France.
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Thierry Pérez
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale, CNRS-Aix-Marseille University, IRD-University Avignon, Station Marine d'Endoume, rue de la batterie des lions, 13007 Marseille, France.
| | - Bassam Soussi
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
- Department of Marine Sciences, University of Gothenburg, P.O. Box 460, SE40530 Gothenburg, Sweden.
- Oman Centre for Marine Biotechnology, P.O. Box 236, PC 103 Muscat, Oman.
| | - Olivier P Thomas
- School of Chemistry, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland.
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
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