1
|
Hamion G, Aucher W, Mercier A, Tewes F, Menard M, Bertaux J, Girardot M, Imbert C. Insights into betulinic acid as a promising molecule to fight the interkingdom biofilm Staphylococcus aureus-Candida albicans. Int J Antimicrob Agents 2024; 63:107166. [PMID: 38570017 DOI: 10.1016/j.ijantimicag.2024.107166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 03/18/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024]
Abstract
The demand for antibiofilm molecules has increased over several years due to their potential to fight biofilm-associated infections, such as those including the interkingdom Staphylococcus aureus-Candida albicans occurring in clinical settings worldwide. Recently, we identified a pentacyclic triterpenoid compound, betulinic acid, from invasive macrophytes, with interesting antibiofilm properties. The aim of the present study was to provide insights into the mechanism of action of betulinic acid against the clinically relevant bi-species S. aureus-C. albicans biofilms. Microscopy examinations, flow cytometry and crystal violet assays confirmed that betulinic acid was effective at damaging mature S. aureus-C. albicans biofilms or inhibiting their formation, reducing biofilm biomass by 70% on average and without microbicidal activity. The results suggested an action of betulinic acid on cell membranes, inducing changes in properties such as composition, hydrophobicity and fluidity as observed in C. albicans, which may hinder the early adhesion step, biofilm growth and the physical interactions of both microbial species. Further results of real-time polymerase chain reaction argued in favour of a reduction in S. aureus-C. albicans physical interaction due to betulinic acid by the modulation of biofilm-related gene expression, as observed in early stages of biofilm formation. This study revealed the potential of betulinic acid as a candidate agent for the prevention and treatment of S. aureus-C. albicans biofilm-related infections.
Collapse
Affiliation(s)
- Guillaume Hamion
- Ecology and Biology of Interactions, University of Poitiers, UMR CNRS 7267, Poitiers, France.
| | - Willy Aucher
- Ecology and Biology of Interactions, University of Poitiers, UMR CNRS 7267, Poitiers, France
| | - Anne Mercier
- Ecology and Biology of Interactions, University of Poitiers, UMR CNRS 7267, Poitiers, France
| | - Frederic Tewes
- Pharmacology of Antimicrobial Agents and Antibioresistance, University of Poitiers, INSERM U1070, Poitiers, France
| | - Maëlenn Menard
- Ecology and Biology of Interactions, University of Poitiers, UMR CNRS 7267, Poitiers, France
| | - Joanne Bertaux
- Ecology and Biology of Interactions, University of Poitiers, UMR CNRS 7267, Poitiers, France
| | - Marion Girardot
- Ecology and Biology of Interactions, University of Poitiers, UMR CNRS 7267, Poitiers, France
| | - Christine Imbert
- Ecology and Biology of Interactions, University of Poitiers, UMR CNRS 7267, Poitiers, France
| |
Collapse
|
2
|
Desrini S, Ducloux J, Hamion G, Bodet C, Labanowski J, Mustofa M, Nuryastuti T, Imbert C, Girardot M. Antibiofilm Activity of Invasive Plants against Candida albicans: Focus on Baccharis halimifolia Essential Oil and Its Compounds. Chem Biodivers 2023; 20:e202300130. [PMID: 37452792 DOI: 10.1002/cbdv.202300130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
The extracts of five invasive plants were investigated for antifungal and antibiofilm activities against Candida albicans, C. glabrata, C. krusei, and C. parapsilosis. The antifungal activity was evaluated using the microdilution assay and the antibiofilm effect by measurement of the metabolic activity. Ethanol and ethanol-water extracts of Reynoutria japonica leaves inhibited 50 % of planktonic cells at 250 μg mL-1 and 15.6 μg mL-1 , respectively. Ethanol and ethanol-water extracts of Baccharis halimifolia inhibited >75 % of the mature biofilm of C. albicans at 500 μg mL-1 . The essential oil (EO) of B. halimifolia leaves was the most active (50 % inhibition (IC50 ) at 4 and 74 μg mL-1 against the maturation phase and 24 h old-biofilms of C. albicans, respectively). Oxygenated sesquiterpenes were the primary contents in this EO (62.02 %), with β-caryophyllene oxide as the major component (37 %). Aromadendrene oxide-(2), β-caryophyllene oxide, and (±)-β-pinene displayed significant activities against the maturation phase (IC50 =9-310 μ mol l-1 ) and preformed 24 h-biofilm (IC50 =38-630 μ mol l-1 ) of C. albicans with very low cytotoxicity for the first two compounds. C. albicans remained the most susceptible species to this EO and its components. This study highlighted for the first time the antibiofilm potential of B. halimifolia, its EO and some of its components.
Collapse
Affiliation(s)
- Sufi Desrini
- Department of Pharmacology, Faculty of Medicine, Universitas Islam Indonesia, 55584, Yogyakarta, Indonesia
- Doctoral Programme of Faculty Medicine, Public Health and Nursing, Universitas Gadjah Mada, Indonesia
- Laboratoire Ecologie et Biologie des Interactions -, UMR CNRS 7267, Université de Poitiers, Poitiers, France
| | - Julien Ducloux
- Laboratoire Ecologie et Biologie des Interactions -, UMR CNRS 7267, Université de Poitiers, Poitiers, France
| | - Guillaume Hamion
- Laboratoire Ecologie et Biologie des Interactions -, UMR CNRS 7267, Université de Poitiers, Poitiers, France
| | - Charles Bodet
- Laboratoire Inflammation, Tissus Epithéliaux et Cytokines UR 15560, Université de Poitiers, Poitiers, France
| | | | - Mustofa Mustofa
- Department of Pharmacology and Therapy, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Indonesia
- Indonesia Biofilm Research Collaboration Center UGM-BRIN, Yogyakarta, Indonesia
| | - Titik Nuryastuti
- Department of Microbiology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Indonesia
- Indonesia Biofilm Research Collaboration Center UGM-BRIN, Yogyakarta, Indonesia
| | - Christine Imbert
- Laboratoire Ecologie et Biologie des Interactions -, UMR CNRS 7267, Université de Poitiers, Poitiers, France
| | - Marion Girardot
- Laboratoire Ecologie et Biologie des Interactions -, UMR CNRS 7267, Université de Poitiers, Poitiers, France
| |
Collapse
|
3
|
Desrini S, Girardot M, Imbert C, Mustofa M, Nuryastuti T. Screening antibiofilm activity of invasive plants growing at the Slope Merapi Mountain, Central Java, against Candida albicans. BMC Complement Med Ther 2023; 23:232. [PMID: 37438777 DOI: 10.1186/s12906-023-04044-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/18/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND Candida albicans causes high-mortality candidiasis. Antifungal drug resistance demands the development of virulence factor-targeting drugs, particularly antibiofilm. This study screened the effects of five invasive plants growing in Indonesia (Mimosa pudica, Lantana camara, Acacia mangium, Ageratina riparia, and Mikania micrantha) against C. albicans biofilms. Antifungal activity, antiphospholipase activity, biofilm morphology of C. albicans, and cytotoxic capacity were also evaluated. METHODS Maceration was used to extract the plants, and the most active extract inhibiting the biofilms was fractionated using liquid-liquid fractionation. Antibiofilm activity was determined by a colorimetric assay, MTT. Antifungal activity was tested using the broth microdilution method. A phospholipase assay was performed using the egg-yolk agar method. Influence on the C. albicans morphology was assessed using scanning electron microscopy (SEM). The cytotoxic effect was carried out against Vero and HeLa cell lines. RESULTS M. pudica extracts showed the most potent antifungal efficacy with minimum inhibitory concentration (MIC) of 15.62 µg/mL and 7.81 µg/mL for aerial parts and roots, respectively. At high concentrations (500 µg/mL and 250 µg/mL), ethanol extract of M. pudica aerial parts strongly inhibited the phospholipase activity. Ethyl-acetate fraction of M. pudica aerial parts demonstrated the most potent antibiofilm activity against 24 h old biofilm of C. albicans with an inhibitory concentration (53.89%) of 62.5 µg/mL showed no cytotoxicity in both Vero and HeLa cells. This fraction affected the morphology of C. albicans and contained promising compounds for inhibiting the 24 h old biofilm of C. albicans. CONCLUSIONS Invasive M. pudica plant inhibited the growth of planktonic C. albicans cells and its ethyl acetate fraction decreased the metabolic activity of C. albicans biofilms. This result demonstrates the potential of invasive M. pudica plant to reduce biofilm-associated candida infection.
Collapse
Affiliation(s)
- Sufi Desrini
- Department of Pharmacology, Faculty of Medicine, Universitas Islam Indonesia, Yogyakarta, Indonesia
- Doctoral Program of Faculty Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
- Laboratoire Ecologie Et Biologie Des Interactions - UMR CNRS 7267, Université de Poitiers, Poitiers, France
| | - Marion Girardot
- Laboratoire Ecologie Et Biologie Des Interactions - UMR CNRS 7267, Université de Poitiers, Poitiers, France
| | - Christine Imbert
- Laboratoire Ecologie Et Biologie Des Interactions - UMR CNRS 7267, Université de Poitiers, Poitiers, France
| | - Mustofa Mustofa
- Department of Pharmacology and Therapy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
- Indonesia Biofilm Research Collaboration Center UGM-BRIN, Yogyakarta, Indonesia
| | - Titik Nuryastuti
- Indonesia Biofilm Research Collaboration Center UGM-BRIN, Yogyakarta, Indonesia.
- Department of Microbiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia.
| |
Collapse
|
4
|
Hamion G, Aucher W, Tardif C, Miranda J, Rouger C, Imbert C, Girardot M. Valorization of Invasive Plant Extracts against the Bispecies Biofilm Staphylococcus aureus- Candida albicans by a Bioguided Molecular Networking Screening. Antibiotics (Basel) 2022; 11:antibiotics11111595. [PMID: 36421241 PMCID: PMC9686625 DOI: 10.3390/antibiotics11111595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Invasive plants efficiently colonize non-native territories, suggesting a great production of bioactive metabolites which could be effective antibiofilm weapons. Our study aimed to look for original molecules able to inhibit bispecies biofilm formed by S. aureus and C. albicans. Extracts from five invasive macrophytes (Ludwigia peploides, Ludwigia grandiflora, Myriophyllum aquaticum, Lagarosiphon major and Egeria densa) were prepared and tested in vitro against 24 h old bispecies biofilms using a crystal violet staining (CVS) assay. The activities of the extracts reducing the biofilm total biomass by 50% or more were comparatively analyzed against each microbial species forming the biofilm by flow cytometry (FCM) and scanning electron microscopy. Extracts active against both species were fractionated. Obtained fractions were analyzed by UHPLC-MS/MS and evaluated by the CVS assay. Chemical and biological data were combined into a bioactivity-based molecular networking (BBMN) to identify active compounds. The aerial stem extract of L. grandiflora showed the highest antibiofilm activity (>50% inhibition at 50 µg∙mL−1). The biological, chemical and BBMN investigations of its fractions highlighted nine ions correlated with the antibiofilm activity. The most correlated compound, identified as betulinic acid (BA), inhibited bispecies biofilms regardless of the three tested couples of strains (ATCC strains: >40% inhibition, clinical isolates: ≈27% inhibition), confirming its antibiofilm interest.
Collapse
Affiliation(s)
- Guillaume Hamion
- Laboratoire EBI, University of Poitiers, UMR CNRS 7267, F-86000 Poitiers, France
- Correspondence:
| | - Willy Aucher
- Laboratoire EBI, University of Poitiers, UMR CNRS 7267, F-86000 Poitiers, France
| | - Charles Tardif
- University of Bordeaux, UMR INRAE 1366, Bordeaux INP, OENO, ISVV, F-33140 Villenave d’Ornon, France
- Bordeaux Sciences Agro, UMR INRAE 1366, Bordeaux INP, OENO, ISVV, F-33170 Gradignan, France
| | - Julie Miranda
- University of Bordeaux, UMR INRAE 1366, Bordeaux INP, OENO, ISVV, F-33140 Villenave d’Ornon, France
- Bordeaux Sciences Agro, UMR INRAE 1366, Bordeaux INP, OENO, ISVV, F-33170 Gradignan, France
| | - Caroline Rouger
- University of Bordeaux, UMR INRAE 1366, Bordeaux INP, OENO, ISVV, F-33140 Villenave d’Ornon, France
- Bordeaux Sciences Agro, UMR INRAE 1366, Bordeaux INP, OENO, ISVV, F-33170 Gradignan, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine-Bordeaux, F-33140 Villenave d’Ornon, France
| | - Christine Imbert
- Laboratoire EBI, University of Poitiers, UMR CNRS 7267, F-86000 Poitiers, France
| | - Marion Girardot
- Laboratoire EBI, University of Poitiers, UMR CNRS 7267, F-86000 Poitiers, France
| |
Collapse
|
5
|
Toure S, Millot M, Ory L, Roullier C, Khaldi Z, Pichon V, Girardot M, Imbert C, Mambu L. Access to Anti-Biofilm Compounds from Endolichenic Fungi Using a Bioguided Networking Screening. J Fungi (Basel) 2022; 8:jof8101012. [PMID: 36294577 PMCID: PMC9604612 DOI: 10.3390/jof8101012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Endolichenic microorganisms represent a new source of bioactive natural compounds. Lichens, resulting from a symbiotic association between algae or cyanobacteria and fungi, constitute an original ecological niche for these microorganisms. Endolichenic fungi inhabiting inside the lichen thallus have been isolated and characterized. By cultivation on three different culture media, endolichenic fungi gave rise to a wide diversity of bioactive metabolites. A total of 38 extracts were screened for their anti-maturation effect on Candida albicans biofilms. The 10 most active ones, inducing at least 50% inhibition, were tested against 24 h preformed biofilms of C. albicans, using a reference strain and clinical isolates. The global molecular network was associated to bioactivity data in order to identify and priorize active natural product families. The MS-targeted isolation led to the identification of new oxygenated fatty acid in Preussia persica endowed with an interesting anti-biofilm activity against C. albicans yeasts.
Collapse
Affiliation(s)
- Seinde Toure
- Laboratoire PEIRENE, University Limoges, UR 22722, F-87000 Limoges, France
| | - Marion Millot
- Laboratoire PEIRENE, University Limoges, UR 22722, F-87000 Limoges, France
| | - Lucie Ory
- Institut des Substances et Organismes de la Mer (ISOMer), Nantes Université, UR 2160, F-44000 Nantes, France
| | - Catherine Roullier
- Institut des Substances et Organismes de la Mer (ISOMer), Nantes Université, UR 2160, F-44000 Nantes, France
| | - Zineb Khaldi
- Laboratoire PEIRENE, University Limoges, UR 22722, F-87000 Limoges, France
| | - Valentin Pichon
- Laboratoire PEIRENE, University Limoges, UR 22722, F-87000 Limoges, France
| | - Marion Girardot
- Laboratoire Ecologie et Biologie des Interactions (EBI), University Poitiers, UMR CNRS 7267, F-86000 Poitiers, France
| | - Christine Imbert
- Laboratoire Ecologie et Biologie des Interactions (EBI), University Poitiers, UMR CNRS 7267, F-86000 Poitiers, France
| | - Lengo Mambu
- Laboratoire PEIRENE, University Limoges, UR 22722, F-87000 Limoges, France
- Correspondence: ; Tel.: +33-5-55-43-58-34
| |
Collapse
|
6
|
Girardot M, Millot M, Hamion G, Billard JL, Juin C, Ntoutoume GMAN, Sol V, Mambu L, Imbert C. Lichen Polyphenolic Compounds for the Eradication of Candida albicans Biofilms. Front Cell Infect Microbiol 2021; 11:698883. [PMID: 34604104 PMCID: PMC8481799 DOI: 10.3389/fcimb.2021.698883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 08/19/2021] [Indexed: 01/10/2023] Open
Abstract
Lichens, due to their symbiotic nature (association between fungi and algae), constitute a chemical factory of original compounds. Polyphenolic compounds (depsides and depsidones) are the main constituents of lichens and are exclusively biosynthesized by these organisms. A panel of 11 polyphenols was evaluated for their anti-biofilm activity against Candida albicans biofilms on the maturation phase (anti-maturation) (MMIC50) as well as on preformed 24-h-old biofilm (anti-biofilm) (MBIC50) using the XTT assay. Minimum inhibitory concentrations of compounds (MICs) against C. albicans planktonic yeast were also determined using a broth microdilution method. While none of the tested compounds were active against planktonic cells (IC50 > 100 µg/ml), three depsides slowed the biofilm maturation (MMIC50 ≤12.5 µg/ml after 48 h of contact with Candida cells). Evernic acid was able to both slow the maturation and reduce the already formed biofilms with MBIC50 ≤12.5 µg/ml after 48 h of contact with the biofilm. This compound shows a weak toxicity against HeLa cells (22%) at the minimal active concentration and no hemolytic activity at 100 µg/ml. Microscopic observations of evernic acid and optimization of its solubility were performed to further study this compound. This work confirmed the anti-biofilm potential of depsides, especially evernic acid, and allows to establish the structure-activity relationships to better explain the anti-biofilm potential of these compounds.
Collapse
Affiliation(s)
- Marion Girardot
- UMR CNRS 7267, Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, Poitiers, France
| | - Marion Millot
- EA 7500, Laboratoire PEIRENE, Université de Limoges, Limoges, France
| | - Guillaume Hamion
- UMR CNRS 7267, Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, Poitiers, France
| | - Jeanne-Louise Billard
- UMR CNRS 7267, Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, Poitiers, France
| | - Camille Juin
- UMR CNRS 7267, Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, Poitiers, France
| | | | - Vincent Sol
- EA 7500, Laboratoire PEIRENE, Université de Limoges, Limoges, France
| | - Lengo Mambu
- EA 7500, Laboratoire PEIRENE, Université de Limoges, Limoges, France
| | - Christine Imbert
- UMR CNRS 7267, Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, Poitiers, France
| |
Collapse
|
7
|
Juin C, Perrin F, Puy T, Bernard C, Mollichella ML, Girardot M, Costa D, Guillard J, Imbert C. Anti-biofilm activity of a semi-synthetic molecule obtained from resveratrol against Candida albicans biofilm. Med Mycol 2021; 58:530-542. [PMID: 31504755 DOI: 10.1093/mmy/myz087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/09/2019] [Accepted: 08/02/2019] [Indexed: 01/08/2023] Open
Abstract
Candida albicans can form biofilm on tissues and medical devices, becoming, in that case, less susceptible to antifungal agents. Treatment of candidiasis associated with the formation of C. albicans biofilms is restricted to echinocandins and lipid forms of amphotericin B. This study investigated the activity of micafungin and resveratrol modified molecule (EB487) against C. albicans biofilms. The anti-biofilm growth (Bgrowth) and anti-preformed biofilm (Bpreformed) activities of micafungin (0 to 3.94 μM) and EB487 (0 to 20.32 mM) were comparatively studied separately and combined, using XTT, flow cytometry and cell counts approaches. Concentrations causing 50% inhibition of the studied steps (IC50) were evaluated. When tested separately, IC50 Bgrowth was obtained for 4.8 mM and 0.13 μM of EB487 and micafungin respectively, and IC50 Bpreformed for 3.6 mM and 0.06 μM of EB487 and micafungin respectively. Micafungin used alone was not able to totally eradicate fungi. Micafungin combined with EB487 displayed synergistic activity (both anti-growth- and anti-preformed biofilm-activities). Optimal combination concentrations were EB487 (≤9.12 mM -strain ATCC 28367™ or ≤8.12 mM -strain CAI4-p), micafungin (≤0.05 μM for both) and caused a total eradication of fungi. Dose reduction indexes obtained using these concentrations were at least 9 (micafungin) and 3.2 (EB487) for both anti-biofilm growth- and anti-preformed biofilm-activities. Combinations indexes were consistently below one, demonstrating a synergistic relationship between micafungin and EB487 in these conditions. This study demonstrated the strong anti-biofilm activity of EB487 and highlighted its synergistic potential when combined with micafungin. EB487 is a promising semi-synthetic molecule with prophylactic and curative interests in fighting C. albicans biofilms.
Collapse
Affiliation(s)
- Camille Juin
- Université de Poitiers, Laboratoire Ecologie Biologie des Interactions, UMR CNRS 7267, 1 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9 France
| | - Flavie Perrin
- University of Poitiers, Institute of Chemistry, Materials and Naturals Resources of Poitiers, IC2MP, UMR CNRS 7285, University of Poitiers, 4 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9, France
| | - Thomas Puy
- Université de Poitiers, Laboratoire Ecologie Biologie des Interactions, UMR CNRS 7267, 1 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9 France
| | - Clément Bernard
- Université de Poitiers, Laboratoire Ecologie Biologie des Interactions, UMR CNRS 7267, 1 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9 France
| | - Marie Laure Mollichella
- Université de Poitiers, Laboratoire Ecologie Biologie des Interactions, UMR CNRS 7267, 1 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9 France
| | - Marion Girardot
- Université de Poitiers, Laboratoire Ecologie Biologie des Interactions, UMR CNRS 7267, 1 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9 France
| | - Damien Costa
- Université de Poitiers, Laboratoire Ecologie Biologie des Interactions, UMR CNRS 7267, 1 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9 France
| | - Jérôme Guillard
- University of Poitiers, Institute of Chemistry, Materials and Naturals Resources of Poitiers, IC2MP, UMR CNRS 7285, University of Poitiers, 4 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9, France
| | - Christine Imbert
- Université de Poitiers, Laboratoire Ecologie Biologie des Interactions, UMR CNRS 7267, 1 rue Michel Brunet TSA 51106 86073 Poitiers Cedex 9 France
| |
Collapse
|
8
|
Bernard C, Juin C, Vitry M, Le VTD, Verdon J, Toullec AS, Imbert C, Girardot M. Can Leaves and Stems of Rubus idaeus L. Handle Candida albicans Biofilms? Pharmaceuticals (Basel) 2020; 13:E477. [PMID: 33353173 PMCID: PMC7766086 DOI: 10.3390/ph13120477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/15/2022] Open
Abstract
Candida albicans is an opportunistic pathogen involved in many infections, especially linked to implanted medical devices. Its ability to form biofilms complicates the treatment of these infections as few molecules are active against sessile C. albicans. The aim of this study was to evaluate the potential of leaves, three-month-old and one-year-old stems of Rubus idaeus L. against C. albicans biofilm growth. Extractions with a polarity gradient were carried out on hydroacetonic extracts and followed by fractionation steps. The obtained extracts and fractions were tested for their anti-biofilm growth activity against C. albicans using XTT method. Compounds of active subfractions were identified by LC-MS. The hexane extracts from leaves and stems were the most active against the fungus with IC50 at 500 and 250 µg/mL. Their bioguided fractionation led to 4 subfractions with IC50 between 62.5 and 125 µg/mL. Most of the components identified in active subfractions were fatty acids and terpenoïds.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Marion Girardot
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, F-86073 Poitiers, France; (C.B.); (C.J.); (M.V.); (V.T.D.L.); (J.V.); (A.-S.T.); (C.I.)
| |
Collapse
|
9
|
Lemoine V, Bernard C, Leman-Loubière C, Clément-Larosière B, Girardot M, Boudesocque-Delaye L, Munnier E, Imbert C. Nanovectorized Microalgal Extracts to Fight Candida albicans and Cutibacterium acnes Biofilms: Impact of Dual-Species Conditions. Antibiotics (Basel) 2020; 9:E279. [PMID: 32466354 PMCID: PMC7344943 DOI: 10.3390/antibiotics9060279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/22/2020] [Accepted: 05/23/2020] [Indexed: 12/19/2022] Open
Abstract
Biofilm-related infections are a matter of concern especially because of the poor susceptibility of microorganisms to conventional antimicrobial agents. Innovative approaches are needed. The antibiofilm activity of extracts of cyanobacteria Arthrospira platensis, rich in free fatty acids, as well as of extract-loaded copper alginate-based nanocarriers, were studied on single- and dual-species biofilms of Candida albicans and Cutibacterium acnes. Their ability to inhibit the biofilm formation and to eradicate 24 h old biofilms was investigated. Concentrations of each species were evaluated using flow cytometry. Extracts prevented the growth of C. acnes single-species biofilms (inhibition > 75% at 0.2 mg/mL) but failed to inhibit preformed biofilms. Nanovectorised extracts reduced the growth of single-species C. albicans biofilms (inhibition > 43% at 0.2 mg/mL) while free extracts were weakly or not active. Nanovectorised extracts also inhibited preformed C. albicans biofilms by 55% to 77%, whereas the corresponding free extracts were not active. In conclusion, even if the studied nanocarrier systems displayed promising activity, especially against C. albicans, their efficacy against dual-species biofilms was limited. This study highlighted that working in such polymicrobial conditions can give a more objective view of the relevance of antibiofilm strategies by taking into account interspecies interactions that can offer additional protection to microbes.
Collapse
Affiliation(s)
- Virginie Lemoine
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, 86073 Poitiers, France; (V.L.); (C.B.); (M.G.)
| | - Clément Bernard
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, 86073 Poitiers, France; (V.L.); (C.B.); (M.G.)
| | - Charlotte Leman-Loubière
- Laboratoire SIMBA EA 7502, Faculté de Pharmacie, Université de Tours, 31 avenue Monge, 37200 Tours, France; (C.L.-L.); (L.B.-D.)
| | | | - Marion Girardot
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, 86073 Poitiers, France; (V.L.); (C.B.); (M.G.)
| | - Leslie Boudesocque-Delaye
- Laboratoire SIMBA EA 7502, Faculté de Pharmacie, Université de Tours, 31 avenue Monge, 37200 Tours, France; (C.L.-L.); (L.B.-D.)
| | - Emilie Munnier
- Laboratoire Nanomédicaments et Nanosondes EA 6295, Faculté de Pharmacie, Université de Tours, 31 avenue Monge, 37200 Tours, France;
| | - Christine Imbert
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, 86073 Poitiers, France; (V.L.); (C.B.); (M.G.)
| |
Collapse
|
10
|
Bernard C, Girardot M, Imbert C. Candida albicans interaction with Gram-positive bacteria within interkingdom biofilms. J Mycol Med 2020; 30:100909. [DOI: 10.1016/j.mycmed.2019.100909] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 10/08/2019] [Accepted: 10/27/2019] [Indexed: 12/19/2022]
|
11
|
Bernard C, Lemoine V, Hoogenkamp MA, Girardot M, Krom BP, Imbert C. Candida albicans enhances initial biofilm growth of Cutibacterium acnes under aerobic conditions. Biofouling 2019; 35:350-360. [PMID: 31088179 DOI: 10.1080/08927014.2019.1608966] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/05/2019] [Accepted: 04/11/2019] [Indexed: 06/09/2023]
Abstract
Candida albicans and Cutibacterium acnes are opportunistic pathogens that co-colonize the human body. They are involved in biofilm-related infections of implanted medical devices. The objective of this study was to evaluate the ability of these species to interact and form polymicrobial biofilms. SEM imaging and adhesion assays showed that C. acnes adhesion to C. albicans did not have a preference for a specific morphological state of C. albicans; bacteria adhered to both hyphal and yeast forms of C. albicans. C. albicans did not influence growth of C. acnes under anaerobic growth conditions, however under aerobic growth condition, C. albicans enhanced early C. acnes biofilm formation. This favorable impact of C. albicans was not mediated by secreted compounds accumulating in the medium, but required the presence of metabolically active C. albicans. The ability of these microorganisms to interact together could modulate the physiopathology of infections.
Collapse
Affiliation(s)
- Clément Bernard
- a Laboratoire Ecologie Biologie des Interactions - UMR CNRS 7267 , Université de Poitiers , Poitiers , France
| | - Virginie Lemoine
- a Laboratoire Ecologie Biologie des Interactions - UMR CNRS 7267 , Université de Poitiers , Poitiers , France
| | - Michel A Hoogenkamp
- b Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA) , Vrije Universiteit Amsterdam and the University of Amsterdam , Amsterdam , The Netherlands
| | - Marion Girardot
- a Laboratoire Ecologie Biologie des Interactions - UMR CNRS 7267 , Université de Poitiers , Poitiers , France
| | - Bastiaan P Krom
- b Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA) , Vrije Universiteit Amsterdam and the University of Amsterdam , Amsterdam , The Netherlands
- c ESCMID Study Group for Biofilms (ESGB)
| | - Christine Imbert
- a Laboratoire Ecologie Biologie des Interactions - UMR CNRS 7267 , Université de Poitiers , Poitiers , France
- c ESCMID Study Group for Biofilms (ESGB)
| |
Collapse
|
12
|
Lagarde A, Millot M, Pinon A, Liagre B, Girardot M, Imbert C, Ouk T, Jargeat P, Mambu L. Antiproliferative and antibiofilm potentials of endolichenic fungi associated with the lichen
Nephroma laevigatum. J Appl Microbiol 2019; 126:1044-1058. [DOI: 10.1111/jam.14188] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/21/2018] [Accepted: 12/26/2018] [Indexed: 12/17/2022]
Affiliation(s)
- A. Lagarde
- Département de Pharmacognosie Laboratoire PEIRENE – EA 7500 Université de Limoges Limoges France
| | - M. Millot
- Département de Pharmacognosie Laboratoire PEIRENE – EA 7500 Université de Limoges Limoges France
| | - A. Pinon
- Laboratoire PEIRENE – EA 7500 Université de Limoges Limoges France
| | - B. Liagre
- Laboratoire PEIRENE – EA 7500 Université de Limoges Limoges France
| | - M. Girardot
- UMR CNRS 7267, Laboratoire Écologie et biologie des interactions Université de Poitiers Poitiers France
| | - C. Imbert
- UMR CNRS 7267, Laboratoire Écologie et biologie des interactions Université de Poitiers Poitiers France
| | - T.S. Ouk
- Laboratoire PEIRENE – EA 7500 Université de Limoges Limoges France
| | - P. Jargeat
- UMR 5174 UPS‐CNRS‐IRD, Laboratoire Évolution et Diversité Biologique Université de Toulouse 3 Toulouse France
| | - L. Mambu
- Département de Pharmacognosie Laboratoire PEIRENE – EA 7500 Université de Limoges Limoges France
| |
Collapse
|
13
|
Boutin R, Munnier E, Renaudeau N, Girardot M, Pinault M, Chevalier S, Chourpa I, Clément-Larosière B, Imbert C, Boudesocque-Delaye L. Spirulina platensis sustainable lipid extracts in alginate-based nanocarriers: An algal approach against biofilms. ALGAL RES 2019. [DOI: 10.1016/j.algal.2018.11.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
14
|
Dutreix L, Bernard C, Juin C, Imbert C, Girardot M. Do raspberry extracts and fractions have antifungal or anti-adherent potential against Candida spp.? Int J Antimicrob Agents 2018; 52:947-953. [DOI: 10.1016/j.ijantimicag.2018.08.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 08/21/2018] [Accepted: 08/25/2018] [Indexed: 01/24/2023]
|
15
|
Bernard C, Renaudeau N, Mollichella ML, Quellard N, Girardot M, Imbert C. Cutibacterium acnes protects Candida albicans from the effect of micafungin in biofilms. Int J Antimicrob Agents 2018; 52:942-946. [PMID: 30144502 DOI: 10.1016/j.ijantimicag.2018.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 08/07/2018] [Accepted: 08/12/2018] [Indexed: 12/17/2022]
Abstract
The aim of this study was to investigate the ability of Candida albicans and Cutibacterium acnes to grow together as a polymicrobial biofilm in vitro and to examine the influence of C. acnes on C. albicans susceptibility to micafungin. Mature 72-h-old single-species biofilms of C. albicans and polymicrobial biofilms involving both C. albicans and C. acnes were formed in brain-heart infusion and were observed by scanning electronic microscopy. Moreover, 24-h-old single-species and polymicrobial biofilms were treated for 24 h with micafungin (concentrations ranging from 0.75 mg/L to 12 mg/L) and the antibiofilm activity of micafungin was evaluated on fungal cells by flow cytometry following addition of propidium iodide. The results showed that C. albicans and C. acnes formed a polymicrobial biofilm in the tested conditions and that bacterial presence did not modify fungal viability. Micafungin induced a fungal mortality rate ranging from 70-95% in C. albicans single-species biofilms and from 35-40% in C. acnes-C. albicans polymicrobial biofilms. Mortality induced by micafungin was significantly reduced (P < 0.05 for micafungin at 6 mg/L and P < 0.001 for other micafungin concentrations) in polymicrobial conditions compared with single-species biofilms. In conclusion, this study showed that C. albicans and C. acnes are able to form polymicrobial biofilms together in a synergistic way and that this organisation increases yeast resistance to micafungin.
Collapse
Affiliation(s)
- Clément Bernard
- Laboratoire Ecologie Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, Poitiers, France.
| | - Noémie Renaudeau
- Laboratoire Ecologie Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, Poitiers, France
| | - Marie-Laure Mollichella
- Laboratoire Ecologie Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, Poitiers, France
| | - Nathalie Quellard
- Unité de pathologie ultrastructurale et expérimentale, Laboratoire d'Anatomie et Cytologie Pathologiques, CHU la Milétrie, Poitiers, France
| | - Marion Girardot
- Laboratoire Ecologie Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, Poitiers, France
| | - Christine Imbert
- Laboratoire Ecologie Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, Poitiers, France
| |
Collapse
|
16
|
Lagarde A, Jargeat P, Roy M, Girardot M, Imbert C, Millot M, Mambu L. Fungal communities associated with Evernia prunastri, Ramalina fastigiata and Pleurosticta acetabulum: Three epiphytic lichens potentially active against Candida biofilms. Microbiol Res 2018; 211:1-12. [PMID: 29705201 DOI: 10.1016/j.micres.2018.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/07/2018] [Accepted: 03/17/2018] [Indexed: 11/26/2022]
Abstract
Fungal communities associated to three epiphytic lichens active against Candida, were investigated using culture-based methods We hypothetized that associated fungi would contribute to lichens activities. The ability of specific fungi to grow inside or outside lichens was investigated. To detect biogenesis pathways involved in the production of secondary metabolites, genes coding for nonribosomal peptide synthetase (NRPS) and polyketide synthase I (PKS I) were screened by PCR from fungal DNA extracts. Both endo and epilichenic communities were isolated from two fructicose (Evernia prunastri and Ramalina fastigiata) and one foliose (Pleurosticta acetabulum) lichens. A total of 86 endolichenic and 114 epilichenic isolates were obtained, corresponding to 18 and 24 phylogenetic groups respectively suggesting a wide diversity of fungi. The communities and the species richness were distinct between the three lichens which hosted potentially new fungal species. Additionally, the endo- and epilichenic communities differed in their composition: Sordariomycetes were particularly abundant among endolichenic fungi and Dothideomycetes among epilichenic fungi. Only a few fungi colonized both habitats, such as S. fimicola, Cladosporium sp1 and Botrytis cinerea. Interestingly, Nemania serpens (with several genotypes) was the most abundant endolichenic fungus (53% of isolates) and was shared by the three lichens. Finally, 12 out of 36 phylogenetic groups revealed the presence of genes coding for nonribosomal peptide synthetase (NRPs) and polyketide synthase I (PKS I). This study shows that common lichens are reservoirs of diverse fungal communities, which could potentially contribute to global activity of the lichen and, therefore, deserve to be isolated for further chemical studies.
Collapse
Affiliation(s)
- Aurélie Lagarde
- EA 1069 Laboratoire de Chimie des Substances Naturelles, Faculté de Pharmacie, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France
| | - Patricia Jargeat
- UMR5174 UPS-CNRS-IRD Laboratoire Evolution et Diversité Biologique, EDB, Université Toulouse, 3, Bât 4R1, 118 route de Narbonne, 31062 Toulouse, France
| | - Mélanie Roy
- UMR5174 UPS-CNRS-IRD Laboratoire Evolution et Diversité Biologique, EDB, Université Toulouse, 3, Bât 4R1, 118 route de Narbonne, 31062 Toulouse, France
| | - Marion Girardot
- Laboratoire Ecologie et Biologie des Interactions, Equipe Microbiologie de l'Eau, Université de Poitiers, UMR CNRS 7267, F-86073 Poitiers, France
| | - Christine Imbert
- Laboratoire Ecologie et Biologie des Interactions, Equipe Microbiologie de l'Eau, Université de Poitiers, UMR CNRS 7267, F-86073 Poitiers, France
| | - Marion Millot
- EA 1069 Laboratoire de Chimie des Substances Naturelles, Faculté de Pharmacie, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France
| | - Lengo Mambu
- EA 1069 Laboratoire de Chimie des Substances Naturelles, Faculté de Pharmacie, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France.
| |
Collapse
|
17
|
Bernard C, Bertaux J, Quellard N, Girardot M, Imbert C. Étude de la capacité de Candida albicans et Propionibacterium à interagir et former un biofilm polymicrobien. J Mycol Med 2017. [DOI: 10.1016/j.mycmed.2017.04.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
18
|
Millot M, Girardot M, Dutreix L, Mambu L, Imbert C. Antifungal and Anti-Biofilm Activities of Acetone Lichen Extracts against Candida albicans. Molecules 2017; 22:molecules22040651. [PMID: 28422057 PMCID: PMC6154547 DOI: 10.3390/molecules22040651] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/06/2017] [Accepted: 04/14/2017] [Indexed: 01/09/2023] Open
Abstract
Candida albicans is a commensal coloniser of the human gastrointestinal tract and an opportunistic pathogen, especially thanks to its capacity to form biofilms. This lifestyle is frequently involved in infections and increases the yeast resistance to antimicrobials and immune defenses. In this context, 38 lichen acetone extracts have been prepared and evaluated for their activity against C. albicans planktonic and sessile cells. Minimum inhibitory concentrations of extracts (MICs) were determined using the broth microdilution method. Anti-biofilm activity was evaluated using tetrazolium salt (XTT) assay as the ability to inhibit the maturation phase (anti-maturation) or to eradicate a preformed 24 h old biofilm (anti-biofilm). While none of the extracts were active against planktonic cells, biofilm maturation was limited by 11 of the tested extracts. Seven extracts displayed both anti-maturation and anti-biofilm activities (half maximal inhibitory concentrations IC50_mat and IC50_biof ≤ 100 µg/mL); Evernia prunastri and Ramalina fastigiata were the most promising lichens (IC50_mat < 4 µg/mL and IC50_biof < 10 µg/mL). Chemical profiles of the active extracts performed by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC) have been analyzed. Depsides, which were present in large amounts in the most active extracts, could be involved in anti-biofilm activities. This work confirmed that lichens represent a reservoir of compounds with anti-biofilm potential.
Collapse
Affiliation(s)
- Marion Millot
- Laboratoire de Chimie des Substances Naturelles, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Marion Girardot
- Laboratoire Ecologie et Biologie des Interactions, Equipe Microbiologie de l'Eau, Université de Poitiers, UMR CNRS 7267, F-86073 Poitiers, France.
| | - Lucile Dutreix
- Laboratoire Ecologie et Biologie des Interactions, Equipe Microbiologie de l'Eau, Université de Poitiers, UMR CNRS 7267, F-86073 Poitiers, France.
| | - Lengo Mambu
- Laboratoire de Chimie des Substances Naturelles, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025 Limoges, France.
| | - Christine Imbert
- Laboratoire Ecologie et Biologie des Interactions, Equipe Microbiologie de l'Eau, Université de Poitiers, UMR CNRS 7267, F-86073 Poitiers, France.
| |
Collapse
|
19
|
Costa D, Girardot M, Bertaux J, Verdon J, Imbert C. Efficacy of dental unit waterlines disinfectants on a polymicrobial biofilm. Water Res 2016; 91:38-44. [PMID: 26773487 DOI: 10.1016/j.watres.2015.12.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 12/03/2015] [Accepted: 12/30/2015] [Indexed: 06/05/2023]
Abstract
Due to their high surface-volume ratio, their laminar flow and frequent stagnation periods, dental unit waterlines (DUWL) foster the attachment of microorganisms and the development of biofilm, resulting in the continuous contamination of the outlet water from dental units; this contamination may be responsible for a potential risk of infection due to the exposure of patients and medical staff to droplet inhalation or splashed water. In this study, the anti-biofilm activity of three disinfectants recommended by dental unit manufacturers -Calbenium(©), Oxygenal 6(©) and Sterispray(©) - was evaluated. A dynamic model simulating DUWL conditions was developed and polymicrobial biofilms containing bacteria (Pseudomonas aeruginosa), fungi (Candida albicans) and Free Living Amoeba (FLA: Vermamoeba vermiformis) were allowed to form. The ability of disinfectants to reduce biofilm formation or to eradicate an already formed biofilm was evaluated. Results showed the various effects of the tested disinfectants according to their composition, concentration and the targeted species. V. vermiformis was resistant to disinfectants, regardless of the tested concentrations and the concentrations recommended by manufacturers were not the most appropriate. Results also showed that Calbenium(©) was the most effective disinfectant to reduce already formed biofilms; its maximum efficiency was observed from 0.5% on both P. aeruginosa and C. albicans compared to 2 and 3% respectively for Sterispray(©). The maximum efficiency of Oxygenal(©) was observed from 3% on P. aeruginosa but Oxygenal(©) was unable to totally eliminate C. albicans in the tested conditions, contrary to other disinfectants. Calbenium(©) was able to prevent biofilm formation efficiently even if it displayed no prophylactic activity against V. vermiformis. Overall, the FLA survival may contribute to maintaining other species. Finally the tested disinfectants were partially active against sessile microorganisms and more suitable concentrations could be used to increase their efficacy. Their use in a prophylactic rather than curative way should be recommended.
Collapse
Affiliation(s)
- Damien Costa
- Equipe Microbiologie de l'Eau, Ecologie et Biologie des Interactions, Centre National de la Recherche Scientifique UMR 7267, Université de Poitiers, Poitiers, France; Service de Bactériologie et d'Hygiène hospitalière, CHU de Poitiers, Poitiers, France.
| | - Marion Girardot
- Equipe Microbiologie de l'Eau, Ecologie et Biologie des Interactions, Centre National de la Recherche Scientifique UMR 7267, Université de Poitiers, Poitiers, France; Faculté de Médecine et de Pharmacie de Poitiers, Poitiers, France
| | - Joanne Bertaux
- Equipe Ecologie Evolution Symbiose, Ecologie et Biologie des Interactions, Centre National de la Recherche Scientifique UMR 7267, Université de Poitiers, Poitiers, France
| | - Julien Verdon
- Equipe Microbiologie de l'Eau, Ecologie et Biologie des Interactions, Centre National de la Recherche Scientifique UMR 7267, Université de Poitiers, Poitiers, France
| | - Christine Imbert
- Equipe Microbiologie de l'Eau, Ecologie et Biologie des Interactions, Centre National de la Recherche Scientifique UMR 7267, Université de Poitiers, Poitiers, France; Faculté de Médecine et de Pharmacie de Poitiers, Poitiers, France
| |
Collapse
|
20
|
Abstract
A biofilm is a consortium of microbial cells that are attached to a substratum or an interface. It should be considered a reservoir that may induce serious infections. Indeed, Candidaspp. biofilms may be involved in the persistence or worsening of some chronic inflammatory diseases as well as in systemic infections, which may lead to high morbidity and mortality rates. New strategies are currently being explored, utilizing several synthetic compounds to prevent or fight these Candida biofilms. This article focuses on active synthetic compounds classified with regards to their modes of action: inhibition of early adherence phase, inhibition or control of biofilm maturation and finally elimination of already formed biofilms. Some of them show promise in fighting biofilm.
Collapse
Affiliation(s)
- Marion Girardot
- EBI, UMR CNRS 7267, Université de Poitiers, Bâtiment D1, 6 rue de la Milétrie, TSA 51115, 86073 POITIERS Cedex 9, France
| | - Christine Imbert
- EBI, UMR CNRS 7267, Université de Poitiers, Bâtiment D1, 6 rue de la Milétrie, TSA 51115, 86073 POITIERS Cedex 9, France
| |
Collapse
|
21
|
Chaftar N, Girardot M, Quellard N, Labanowski J, Ghrairi T, Hani K, Frère J, Imbert C. Activity of Six Essential Oils Extracted from Tunisian Plants againstLegionella pneumophila. Chem Biodivers 2015; 12:1565-74. [DOI: 10.1002/cbdv.201400343] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Indexed: 02/02/2023]
Affiliation(s)
- Naouel Chaftar
- Université de Poitiers, EBI, UMR CNRS 7267, Bât. D1, 6 rue de la Milétrie, TSA 51115, FR‐86073 Poitiers (phone: +33‐2‐35146454)
- Faculté de Médecine, UR08 – 45, Département de Biochimie, Avenue Mohamed Karoui, 4002 Sousse, Tunisie
- Université de Rouen, LMSM ‐ EA 4312, UFR des Sciences et Techniques, FR‐76821 Mont‐Saint‐Aignan (current address)
| | - Marion Girardot
- Université de Poitiers, EBI, UMR CNRS 7267, Bât. D1, 6 rue de la Milétrie, TSA 51115, FR‐86073 Poitiers (phone: +33‐2‐35146454)
| | - Nathalie Quellard
- CHU de Poitiers, Service de Microscopie, 2 rue de la Milétrie, FR‐86021 Poitiers
| | - Jérôme Labanowski
- Université de Poitiers, IC2 MP, UMR CNRS 7285, 4 rue Michel Brunet, FR‐86022 Poitiers
| | - Tawfik Ghrairi
- Faculté de Médecine, UR08 – 45, Département de Biochimie, Avenue Mohamed Karoui, 4002 Sousse, Tunisie
| | - Khaled Hani
- Faculté de Médecine, UR08 – 45, Département de Biochimie, Avenue Mohamed Karoui, 4002 Sousse, Tunisie
| | - Jacques Frère
- Université de Poitiers, EBI, UMR CNRS 7267, Bât. D1, 6 rue de la Milétrie, TSA 51115, FR‐86073 Poitiers (phone: +33‐2‐35146454)
| | - Christine Imbert
- Université de Poitiers, EBI, UMR CNRS 7267, Bât. D1, 6 rue de la Milétrie, TSA 51115, FR‐86073 Poitiers (phone: +33‐2‐35146454)
| |
Collapse
|
22
|
Chaftar N, Girardot M, Labanowski J, Ghrairi T, Hani K, Frère J, Imbert C. Comparative evaluation of the antimicrobial activity of 19 essential oils. Advances in Experimental Medicine and Biology 2015; 901:1-15. [DOI: 10.1007/5584_2015_5011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
23
|
Girardot M, Guerineau A, Boudesocque L, Costa D, Bazinet L, Enguehard-Gueiffier C, Imbert C. Promising results of cranberry in the prevention of oral Candida biofilms. Pathog Dis 2014; 70:432-9. [PMID: 24623607 DOI: 10.1111/2049-632x.12168] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Revised: 02/05/2014] [Accepted: 03/06/2014] [Indexed: 11/27/2022] Open
Abstract
In the context of dental caries prevention by natural foodstuff sources, antifungal and antibiofilm activities of dry commercial extracts of cranberry fruit (Vaccinium macrocarpon Aiton) and two other red fruits (Vaccinium myrtillus L. and Malpighia punicifolia L.) were assessed on Candida albicans and Candida glabrata yeasts. When added to the culture medium, the cranberry extract displayed a significant anti-adhesion activity against Candida spp. when used at low concentrations. In addition, the pretreatment of surfaces with this extract induced an anti-adhesion activity mainly against C. glabrata yeasts and an antibiofilm activity against C. albicans. This activity was dependent on concentration, species, and strain. A phytochemical investigation bioguided by anti-adhesion tests against the two Candida species was carried out on crude cranberry juice to determine the active fractions. Three subfractions enriched in proanthocyanidins showed an anti-adhesion activity at low concentrations. This study investigated for the first time the interest of crude extracts of cranberry and cranberry juice fractions to prevent biofilms of C. glabrata. It highlighted the potency of consuming this fruit and using it as a source of anti-adhesion agents.
Collapse
Affiliation(s)
- Marion Girardot
- UMR CNRS 7267 Laboratory of Ecology and Biology of Interactions, Faculty of Medicine and Pharmacy, Poitiers, France
| | | | | | | | | | | | | |
Collapse
|
24
|
Girardot M, Imbert C. In vitro screening of antifungal compounds able to counteract biofilm development. Methods Mol Biol 2014; 1147:187-201. [PMID: 24664834 DOI: 10.1007/978-1-4939-0467-9_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Fungi are able to grow as a single-species or a more complex biofilm attached to inert surfaces (catheters…) or tissues (lung…). This last form is a microbial niche which must be considered as a major risk factor of developing a human fungal infection. Nowadays, only a few therapeutic agents have been shown to be active against fungal biofilms in vitro and/or in vivo. So there is a real need to find new anti-biofilm molecules. Here we describe in detail some rapid, 96-well microtiter plate-based methods, for the screening of compounds with anti-biofilm activity against Candida spp. yeasts. Two approaches will be considered: prophylactic or curative effects of the tested compounds by producing biofilms on two supports - polystyrene well surfaces and catheter sections.
Collapse
Affiliation(s)
- Marion Girardot
- Laboratory of ecology and biology of the interactions, Faculty of Medicine Pharmacy, University of Poitiers, UMR CNRS 7267, 6, rue de la Miletrie - BP 199, 86034, Poitiers, France
| | | |
Collapse
|
25
|
Razafintsalama V, Girardot M, Randrianarivo R, Rakoto D, Sarter S, Petit T, Ralambonirina S, Deville A, Grellier P, Jeannoda V, Mambu L. Dilobenol A-G, Diprenylated Dihydroflavonols from the Leaves ofDilobeia thouarsii. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201421] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
26
|
Girardot M, Gadea A, Deregnaucourt C, Deville A, Dubost L, Nay B, Maciuk A, Rasoanaivo P, Mambu L. Tabernaelegantinals: Unprecedented Cytotoxic Bisindole Alkaloids from Muntafara sessilifolia. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101738] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
27
|
Girardot M, Deregnaucourt C, Deville A, Dubost L, Joyeau R, Allorge L, Rasoanaivo P, Mambu L. Indole alkaloids from Muntafara sessilifolia with antiplasmodial and cytotoxic activities. Phytochemistry 2012; 73:65-73. [PMID: 22033013 DOI: 10.1016/j.phytochem.2011.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 09/23/2011] [Accepted: 09/30/2011] [Indexed: 05/31/2023]
Abstract
Four vobasinyl-iboga bisindole and one 2-acyl monomeric indole alkaloids were isolated from the stem bark of Muntafara sessilifolia along with eleven known compounds. Their structures and relative stereochemistry were elucidated on the basis of spectroscopic data including 1D and 2D NMR and mass spectrometry (MS). All isolated compounds were evaluated in vitro for antiplasmodial activity against the chloroquine-resistant strain FcB1 of Plasmodium falciparum, and for cytotoxicity against the human lung cell line MRC-5 and the rat skeletal muscle cell line L-6. 3'-Oxo-tabernaelegantine A exhibited antiplasmodial activity (4.4 μM IC(50)) associated with non-significant cytotoxicity (selectivity index of 48). Tabernaelegantine B and D displayed the highest cytotoxicity with IC(50) values of 0.47 and 1.89 μM on MRC-5 cells, and 0.42 and 2.7 μM on L-6 cells, respectively.
Collapse
Affiliation(s)
- Marion Girardot
- UMR 7245 CNRS-MNHN Molécules de Communication et Adaptation des Micro-organismes, Département Régulations, Développement et Diversité Moléculaire, Muséum National d'Histoire Naturelle, 57 rue Cuvier CP 54, 75231 Paris Cedex 05, France
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Clément A, Jolly D, Novella JL, Jochum C, Bergéal E, Canas F, Ackah-Miézan S, Leleu T, Girardot M, Blanchard F. [Diagnosis of malnutrition in the elderly by dual energy absorptiometry]. Presse Med 2000; 29:1207-13. [PMID: 10916528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
OBJECTIVES Denutrition is a frequent condition in elderly persons and may have major consequences. A noninvasive investigation, whole body dual energy X-ray absorptiometry, should allow, by direct measurement of body composition, early and reliable diagnosis of denutrition. This study was conducted to elaborate a diagnostic tool using this exam and to test its validity. PATIENTS AND METHODS A global index of denutrition was proposed combining anthropometric, biological criteria, and the Mini Nutritional Assessment scale. Two agreement analyses were made between classical diagnostic criteria of nutritional status and body fat and fat free mass assessed by anthropometry and absorptiometry. An association between nutritional status and body absorptiometric composition were studied with univariate analysis followed by a multivariate logistic regression model. This model allowed an elaboration of a nutritional absorptiometric index (NAI). RESULTS One hundred one elderly subjects were included. Twenty-three were considered to be in a state of denutrition. Agreement was poor between anthropometric and biological diagnostic criteria of denutrition. It was good between the different masses assess by anthropometry and absorptiometry. Subjects in a state of denutrition had significantly lower body fat and lower fat free mass. The fat free mass index (fat free mass divided by the square height) and body fat were entered into a logistic model and composed the NAI, which showed good diagnostic validity in terms of specificity and sensitivity. DISCUSSION Absorptiometry appears to be a simple reliable diagnostic tool for assessing denutrition in elderly persons in routine practice. Further studies are required and should lead to a confirmation of the interest of these absorptiometric indexes.
Collapse
Affiliation(s)
- A Clément
- Département d'Information médicale, Hôpital Maison Blanche, Reims
| | | | | | | | | | | | | | | | | | | |
Collapse
|