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Soussi S, Essid R, Karkouch I, Saad H, Bachkouel S, Aouani E, Limam F, Tabbene O. Effect of Lipopeptide-Loaded Chitosan Nanoparticles on Candida albicans Adhesion and on the Growth of Leishmania major. Appl Biochem Biotechnol 2021; 193:3732-3752. [PMID: 34398423 DOI: 10.1007/s12010-021-03621-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 07/12/2021] [Indexed: 01/12/2023]
Abstract
Cyclic lipopeptides produced by Bacillus species exhibit interesting therapeutic potential. However, their clinical use remains limited due to their low stability, undesirable interactions with host macromolecules, and their potential toxicity to mammalian cells. The present work aims to develop suitable lipopeptide-loaded chitosan nanoparticles with improved biological properties and reduced toxicity. Surfactin and bacillomycin D lipopeptides produced by Bacillus amyloliquefaciens B84 strain were loaded onto chitosan nanoparticles by ionotropic gelation process. Nanoformulated lipopeptides exhibit an average size of 569 nm, a zeta potential range of 38.8 mV, and encapsulation efficiency (EE) of 85.58%. Treatment of Candida (C.) albicans cells with encapsulated lipopeptides induced anti-adhesive activity of 81.17% and decreased cell surface hydrophobicity (CSH) by 25.53% at 2000 µg/mL. Nanoformulated lipopeptides also induced antileishmanial activity against Leishmania (L.) major promastigote and amastigote forms at respective IC50 values of 14.37 µg/mL and 22.45 µg/mL. Nanoencapsulated lipopeptides exerted low cytotoxicity towards human erythrocytes and Raw 264.7 macrophage cell line with respective HC50 and LC50 values of 770 µg/mL and 234.56 µg/mL. Nanoencapsulated lipopeptides could be used as a potential delivery system of lipopeptides to improve their anti-adhesive effect against C. albicans cells colonizing medical devices and their anti-infectious activity against leishmania.
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Affiliation(s)
- Siwar Soussi
- Laboratoire Des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria (CBBC), BP-901, 2050, Hammam-lif, Tunisia.,Faculté Des Sciences de Bizerte, Université de Carthage, Tunis, Tunisia
| | - Rym Essid
- Laboratoire Des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria (CBBC), BP-901, 2050, Hammam-lif, Tunisia
| | - Ines Karkouch
- Laboratoire Des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria (CBBC), BP-901, 2050, Hammam-lif, Tunisia
| | - Houda Saad
- Laboratoire Des Matériaux Composites Et Minéraux Argileux, Centre National Des Recherches en Sciences Des Matériaux, BP-73, 8027, Soliman, Tunisia
| | - Sarra Bachkouel
- Centre de Biotechnologie de Borj-Cedria (CBBC), Espace D'Appui À La Recherche Et de Transfert Technologique, BP-901, 2050, Hammam-lif, Tunisia
| | - Ezzedine Aouani
- Laboratoire Des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria (CBBC), BP-901, 2050, Hammam-lif, Tunisia
| | - Ferid Limam
- Laboratoire Des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria (CBBC), BP-901, 2050, Hammam-lif, Tunisia
| | - Olfa Tabbene
- Laboratoire Des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria (CBBC), BP-901, 2050, Hammam-lif, Tunisia.
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Gargouch N, Elleuch F, Karkouch I, Tabbene O, Pichon C, Gardarin C, Rihouey C, Picton L, Abdelkafi S, Fendri I, Laroche C. Potential of Exopolysaccharide from Porphyridium marinum to Contend with Bacterial Proliferation, Biofilm Formation, and Breast Cancer. Mar Drugs 2021; 19:66. [PMID: 33513982 PMCID: PMC7911520 DOI: 10.3390/md19020066] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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: 12/23/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/18/2022] Open
Abstract
Exopolysaccharide (EPS) from marine microalgae are promising sources of a new generation of drugs. However, lot of them remain to be discovered and tested. In this study, EPS produced by Porphyridium marinum and its oligomers prepared by High Pressure Homogenizer have been tested for different biological activities, i.e., antibacterial, anti-fungal and antibiofilm activities on Candida albicans, as well as for their effects on the viability of murine breast cancer cells. Results have shown that all EPS samples present some biological activity. For antibacterial and antibiofilm activities, the native EPS exhibited a better efficiency with Minimum Inhibitory Concentration (MIC) from 62.5 µg/mL to 1000 µg/mL depending on the bacterial strain. For Candida albicans, the biofilm formation was reduced by about 90% by using only a 31.3 µg/mL concentration. Concerning breast cancer cells, lower molar masses fractions appeared to be more efficient, with a reduction of viability of up to 55%. Finally, analyses of polymers composition and viscosity measurements were conducted on all samples, in order to propose hypotheses involving the activities caused by the intrinsic properties of polymers.
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Affiliation(s)
- Nesrine Gargouch
- Institut Pascal, CNRS, SIGMA Clermont, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (N.G.); (C.G.)
- Laboratoire de Biotechnologie Végétale Appliquée à l’Amélioration des Cultures, Faculty of Sciences of Sfax, University of Sfax, Sfax 3000, Tunisia;
| | - Fatma Elleuch
- Centre de Biophysique Moléculaire, CNRS-UPR 4301, 45071 Orléans, France; (F.E.); (C.P.)
- Unité de Biotechnologie des Algues, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia;
| | - Ines Karkouch
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria (CBBC), BP-901, Hammam-Lif 2050, Tunisia; (I.K.); (O.T.)
| | - Olfa Tabbene
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria (CBBC), BP-901, Hammam-Lif 2050, Tunisia; (I.K.); (O.T.)
| | - Chantal Pichon
- Centre de Biophysique Moléculaire, CNRS-UPR 4301, 45071 Orléans, France; (F.E.); (C.P.)
| | - Christine Gardarin
- Institut Pascal, CNRS, SIGMA Clermont, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (N.G.); (C.G.)
| | - Christophe Rihouey
- Normandie University, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France; (C.R.); (L.P.)
| | - Luc Picton
- Normandie University, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France; (C.R.); (L.P.)
| | - Slim Abdelkafi
- Unité de Biotechnologie des Algues, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia;
| | - Imen Fendri
- Laboratoire de Biotechnologie Végétale Appliquée à l’Amélioration des Cultures, Faculty of Sciences of Sfax, University of Sfax, Sfax 3000, Tunisia;
| | - Céline Laroche
- Institut Pascal, CNRS, SIGMA Clermont, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (N.G.); (C.G.)
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Tabbene O, Azaiez S, Di Grazia A, Karkouch I, Ben Slimene I, Elkahoui S, Alfeddy MN, Casciaro B, Luca V, Limam F, Mangoni ML. Bacillomycin D and its combination with amphotericin B: promising antifungal compounds with powerful antibiofilm activity and wound-healing potency. J Appl Microbiol 2016; 120:289-300. [PMID: 26669801 DOI: 10.1111/jam.13030] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [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: 07/31/2015] [Revised: 11/10/2015] [Accepted: 12/04/2015] [Indexed: 12/31/2022]
Abstract
AIMS In this study, we evaluated the ability of the lipopeptide bacillomycin D and the antifungal drug amphotericin B as well as their combination, to inhibit Candida albicans biofilm formation and to accelerate keratinocyte cell migration. METHODS AND RESULTS The antibiofilm activity of bacillomycin D and its combination with amphotericin B was carried out by crystal violet colorimetric method. Our results have shown that, when combined together at low concentrations nontoxic to mammalian cells, corresponding to 1/32 MIC (0·39 μg ml(-1) ) and 1/4 MIC (0·06 μg ml(-1) ) for bacillomycin D and amphotericin B, respectively, a clear antibiofilm activity is manifested (95% inhibition of biofilm formation) along with a clear inhibition of germ tube formation. Moreover, the effect of both drugs on preformed biofilm of C. albicans strain was determined using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) reduction assay. The combination of the two antifungal compounds at 0·39 and 1 μg ml(-1) for bacillomycin D and amphotericin B, respectively, resulted in a clear enhancement of biofilm eradication compared to the results obtained with each drug alone. Furthermore, this combination was found to promote the closure of a gap produced in a monolayer of human keratinocytes. CONCLUSIONS Bacillomycin D and its combination with amphotericin B display impressive anti-biofilm and wound-healing activities. SIGNIFICANCE AND IMPACT OF THE STUDY Application of the lipopeptide bacillomycin D and the antifungal drug amphotericin B in medical devices may offer a promising alternative for topical treatment of Candida-associated infections in the setting of a wound.
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Affiliation(s)
- O Tabbene
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria, Hammam-Lif, Tunisia
| | - S Azaiez
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria, Hammam-Lif, Tunisia
| | - A Di Grazia
- Dipartimento di Scienze Biochimiche, Istituto Pasteur-Fondazione Cenci Bolognetti, Universita' La Sapienza, Rome, Italy
| | - I Karkouch
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria, Hammam-Lif, Tunisia
| | - I Ben Slimene
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria, Hammam-Lif, Tunisia
| | - S Elkahoui
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria, Hammam-Lif, Tunisia
| | - M N Alfeddy
- Laboratoire de Phytobactériologie, UR Agrobiotechnologie, Institut National de Recherches Agronomiques, Marrakech, Morocco
| | - B Casciaro
- Dipartimento di Scienze Biochimiche, Istituto Pasteur-Fondazione Cenci Bolognetti, Universita' La Sapienza, Rome, Italy
| | - V Luca
- Dipartimento di Scienze Biochimiche, Istituto Pasteur-Fondazione Cenci Bolognetti, Universita' La Sapienza, Rome, Italy
| | - F Limam
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria, Hammam-Lif, Tunisia
| | - M L Mangoni
- Dipartimento di Scienze Biochimiche, Istituto Pasteur-Fondazione Cenci Bolognetti, Universita' La Sapienza, Rome, Italy
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Kalai-Grami L, Karkouch I, Naili O, Slimene IB, Elkahoui S, Zekri RB, Touati I, Mnari-Hattab M, Hajlaoui MR, Limam F. Production and identification of iturin A lipopeptide from Bacillus methyltrophicus TEB1 for control of Phoma tracheiphila. J Basic Microbiol 2016; 56:864-71. [PMID: 27125201 DOI: 10.1002/jobm.201500683] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 11/15/2015] [Accepted: 02/27/2016] [Indexed: 11/06/2022]
Abstract
A lipopeptide-producing endophytic Bacillus methyltrophicus TEB1 strain exhibited potent antifungal activity against Phoma tracheiphila. Lipopeptide production started at the early growth phase plateaued after 36 h of culture where it reduced the mycelium growth by 80%. The crude lipopeptide extract harvested at the stationary phase efficiently inhibited the growth of P. tracheiphila mycelium and MIC values displaying 50 and 90% inhibition of conidia germination were around 47.5 and 100 μg ml(-1) , respectively. Increasing lipopeptide extract till 3 mg ml(-1) induced 10% swelling and 3% crumbling of P. tracheiphila conidia whereas 5 mg ml(-1) induced 40% swelling and 20% crumbling. Mass spectrometry analysis of the lipopeptide extract indicated that surfactin production took place from 12 to 20 h, iturin A from 16 to 72 h, and fengycin from 12 to 72 h and that the main active compound against P. tracheiphila was identified as C15 iturin A lipopeptide. Iturin A appeared as a potential biological control agent able to substitute the currently used chemical pesticides in agriculture.
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Affiliation(s)
- Leila Kalai-Grami
- Laboratoire des Substances Bioactives, CBBC, Hammam-Lif, Tunisia.,Laboratoire de Biotechnologie Appliquée à l'Agriculture, INRA, Hedi Karray, Tunis, Tunisia
| | - Ines Karkouch
- Laboratoire des Substances Bioactives, CBBC, Hammam-Lif, Tunisia
| | - Omar Naili
- Laboratoire de Biotechnologie Appliquée à l'Agriculture, INRA, Hedi Karray, Tunis, Tunisia
| | - Imen Ben Slimene
- Laboratoire des Substances Bioactives, CBBC, Hammam-Lif, Tunisia
| | - Salem Elkahoui
- Laboratoire des Substances Bioactives, CBBC, Hammam-Lif, Tunisia
| | | | - Ines Touati
- Laboratoire des Substances Bioactives, CBBC, Hammam-Lif, Tunisia
| | - Monia Mnari-Hattab
- Laboratoire de Biotechnologie Appliquée à l'Agriculture, INRA, Hedi Karray, Tunis, Tunisia
| | - Mohamed Rabeh Hajlaoui
- Laboratoire de Biotechnologie Appliquée à l'Agriculture, INRA, Hedi Karray, Tunis, Tunisia
| | - Ferid Limam
- Laboratoire des Substances Bioactives, CBBC, Hammam-Lif, Tunisia
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Kefi A, Ben Slimene I, Karkouch I, Rihouey C, Azaeiz S, Bejaoui M, Belaid R, Cosette P, Jouenne T, Limam F. Characterization of endophytic Bacillus strains from tomato plants (Lycopersicon esculentum) displaying antifungal activity against Botrytis cinerea Pers. World J Microbiol Biotechnol 2015; 31:1967-76. [PMID: 26347324 DOI: 10.1007/s11274-015-1943-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 09/03/2015] [Indexed: 11/26/2022]
Abstract
Eighty endophytic bacteria were isolated from healthy tissues of roots, stems, leaves and fruits of tomato plants (Lycopersicon esculentum). Four strains, named BL1, BT5, BR8 and BF11 were selected for their antagonism against Botrytis cinerea, a phytopathogenic fungus responsible of gray mold in several important crops, with growth inhibitory activity ranging from 27 to 53%. Morphological, biochemical, and molecular parameters as 16S rDNA sequencing demonstrated that the selected bacterial strains were related to Bacillus species which are known to produce and secrete a lot of lipopeptides with strong inhibitory effect against pathogen mycelial growth. Electrospray mass spectrometry analysis showed that these strains produced heterogeneous mixture of antibiotics belonging to fengycin and surfactin for BL1 and BT5, to iturin and surfactin for BR8, to bacillomycin D, fengycin and surfactin for BF11. Furthermore, these bacteria exhibited biocontrol potential by reducing the disease severity when tested on detached leaflets. Based on their antifungal activity against Botrytis cinerea, these strains could be used for biological control of plant diseases.
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Affiliation(s)
- Asma Kefi
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Imen Ben Slimene
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Ines Karkouch
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Christophe Rihouey
- PBS Laboratory, UMR 6270 CNRS, FR 3038, Proteomic Platform PISSARO, Institute for Research and Innovation in Biomedicine, University of Rouen, 76821, Mont-Saint-Aignan Cedex, France
| | - Sana Azaeiz
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Marwa Bejaoui
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Rania Belaid
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Pascal Cosette
- PBS Laboratory, UMR 6270 CNRS, FR 3038, Proteomic Platform PISSARO, Institute for Research and Innovation in Biomedicine, University of Rouen, 76821, Mont-Saint-Aignan Cedex, France
| | - Thierry Jouenne
- PBS Laboratory, UMR 6270 CNRS, FR 3038, Proteomic Platform PISSARO, Institute for Research and Innovation in Biomedicine, University of Rouen, 76821, Mont-Saint-Aignan Cedex, France
| | - Ferid Limam
- Laboratory of Bioactive Substances, Biotechnology Center of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia.
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Chalghoum A, Noichri Y, Karkouch I, Dandana A, Baudin B, Jeridi G, Ferchichi S, Miled A. Metabolic interactions between hyperhomocysteinemia and endothelin-1 among Tunisian patients with acute coronary diseases. Biol Res 2015; 48:32. [PMID: 26103962 PMCID: PMC4482036 DOI: 10.1186/s40659-015-0018-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 02/13/2015] [Accepted: 05/20/2015] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Acute coronary syndromes (ACS) are complex and polygenic diseases which are a real problem of public health. These syndromes require multidisciplinary studies to understand the pathogenesis mechanisms and metabolic interactions between different risk factors.This study aimed to explore the variation of two coronary risk parameters not mentioned by Framingham cohorts, hyperhomocysteinemia and endothelin-1 (ET-1) in Tunisian coronary and the study of the variation of these parameters based on various cardiac risk factors and metabolic relationship between them.To 157 coronary and 142 healthy subjects, the concentration of homocysteine was quantified by fluorescence polarization immunoassay; the concentration of ET-1 was measured by an analytical technique, the High Performance Liquid Chromatography (HPLC) coupled with mass spectrometry. RESULTS Our study showed that homocysteine and ET-1 were significantly higher in patients compared to healthy subjects (24.40 ± 12.5 μmol/L vs 7.44 ± 2.5 μmol/L p <0.00001) for homocysteine and (15.2 ± 5.3 nmol/L vs 7.1 ± 2.7 nmol/L, p <0.00001) for ET-1. On the other hand, homocysteine varies according to tobacco and diabetes while ET-1 depends on the sex, hypertension, smoking, obesity and dyslipidemia and a statistically negative correlation was shown between homocysteine and ET-1 in coronary patients (r = -0.66 p <0.00001). CONCLUSION The study of the variation of these two parameters in coronary patients and metabolic exploration of the relationship between homocysteine and ET-1 according to various risk factors and the interactions between themselves facilitates the decision of therapeutic treatment.
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Affiliation(s)
- Abdelkader Chalghoum
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia. .,Valorization and Research Support Space, Biotechnology Center of Borj Cedria, 2052, Hamam Lif, Tunisia.
| | - Yosri Noichri
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Ines Karkouch
- Valorization and Research Support Space, Biotechnology Center of Borj Cedria, 2052, Hamam Lif, Tunisia
| | - Azza Dandana
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Bruno Baudin
- Department of Biochemistry, Saint-Antoine Hospital, 184 Faubourg Saint-Antoine, 75571, Paris, Cedex 12, France
| | - Guieder Jeridi
- Department of Cardiology, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Salima Ferchichi
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Abdelhédi Miled
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
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Charradi K, Elkahoui S, Karkouch I, Limam F, Ben Hassine F, El May MV, Aouani E. Protective effect of grape seed and skin extract against high-fat diet-induced liver steatosis and zinc depletion in rat. Dig Dis Sci 2014; 59:1768-78. [PMID: 24705696 DOI: 10.1007/s10620-014-3128-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 03/20/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Obesity is a tremendous public health problem, characterized by ectopic deposition of fat into non-adipose tissues as liver generating an oxidative stress that could lead to steato-hepatitis. Grape seed and skin extract (GSSE) is a complex mixture of polyphenolics exhibiting robust antioxidative properties. AIM We hypothesize that GSSE could protect the liver from fat-induced lipotoxicity and have a beneficial effect on liver function. METHODS Hepatoprotective effect of GSSE was measured by using an experimental model of fat-induced rat liver steatosis. Male rats were fed a standard diet or a high-fat diet (HFD) during 6 weeks and treated or not with 500 mg/kg bw GSSE. Lipid deposition into the liver was assessed by triglyceride, cholesterol and phospholipid measurements. Fat-induced lipoperoxidation, carbonylation, depletion of glutathione and of antioxidant enzyme activities were used as oxidative stress markers with a special emphasis on transition metal distribution. RESULTS HFD induced liver hypertrophy and inflammation as assessed by high liver transaminases. HFD also induced an oxidative stress characterized by increased lipid and protein oxidation, a drop in glutathione and antioxidant enzyme activities as glutathione peroxidase and superoxide dismutase and a drastic depletion in liver zinc. Importantly, GSSE prevented all the deleterious effects of HFD treatment. CONCLUSIONS Data suggest that GSSE could be used as a safe preventive agent against fat-induced liver lipotoxicity which could also have potential applications in other non-alcoholic liver diseases.
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Affiliation(s)
- Kamel Charradi
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia,
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Elkahoui S, Djébali N, Karkouch I, Ibrahim AH, Kalai L, Bachkouel S, Tabbene O, Limam F. Mass spectrometry identification of antifungal lipopeptides from Bacillus sp. BCLRB2 against Rhizoctonia solani and Sclerotinia sclerotiorum. APPL BIOCHEM MICRO+ 2014. [DOI: 10.1134/s0003683814020082] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Elkahoui S, Djébali N, Karkouch I, Ibrahim AH, Kalai L, Bachkovel S, Tabbene O, Limam F. Mass spectrometry identification of antifungal lipopeptides from Bacillus sp. BCLRB2 against Rhizoctonia solani and Sclerotinia sclerotiorum. Prikl Biokhim Mikrobiol 2014; 50:184-188. [PMID: 25272736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work aims to characterize the bioactive molecules produced by an antagonistic Bacillus sp. strain BCLRB2 isolated from healthy leaves of olive tree against Rhizoctonia solani and Sclerotinia sclerotiorum. The bacterial strain isolated showed a high and persistent antifungal activity against the two pathogens. The free-cell supernatant showed also a high antifungal activity against R. solani and at a lower extent against S. sclerotiorum. The partial purification of the antifungal substances with methanol gradient applied to C18 column binding the Bacillus BCLRB2 culture supernatant showed that the 20% and 60% methanol fractions had a high and specific activity against S. sclerotiorum and R. solani, respectively. The mass spectrometry identification of the compounds in the fraction specifically active against S. sclerotiorum revealed the presence of bacillomycin D C16 as a major lipopeptide. The fraction specifically active against R. solani contained bacillomycin D C15 and 2 unknown lipopeptides. The 80% methanol fraction had a moderate and a broad spectrum activity against the two pathogens and consisted from two iturin D (C13 and C14) as a major lipopeptides.
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Charradi K, Elkahoui S, Karkouch I, Limam F, Hamdaoui G, Hassine FB, El May MV, El May A, Aouani E. Grape seed and skin extract alleviates high-fat diet-induced renal lipotoxicity and prevents copper depletion in rat. Appl Physiol Nutr Metab 2013; 38:259-67. [DOI: 10.1139/apnm-2012-0416] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Obesity is a public health problem that contributes to morbidity and mortality from diabetes, heart disease, stroke, and cancers. The purpose of this investigation was to analyse the link between obesity-induced oxidative stress, renal steatosis, and kidney dysfunction, as well as the protective effect of grape seed and skin extract. Rats were fed a standard diet or a high-fat diet for 6 weeks and were either treated or not treated with grape seed and skin extract. Fat-induced oxidative stress was evaluated in the kidney with a special emphasis on transition metals. High-fat diet induced triglyceride deposition and disturbances in kidney function parameters, which are linked to an oxidative stress status and depletion of copper from the kidney. Grape seed and skin extract abrogated almost all fat-induced kidney disturbances. Grape seed and skin extract exerted potential protection against fat-induced kidney lipotoxicity and should find potential application in other kidney-related diseases.
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Affiliation(s)
- Kamel Charradi
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050 Hammam-Lif, Tunisie
- Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Tunisie
| | - Salem Elkahoui
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050 Hammam-Lif, Tunisie
| | - Ines Karkouch
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050 Hammam-Lif, Tunisie
| | - Ferid Limam
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050 Hammam-Lif, Tunisie
| | - Ghaith Hamdaoui
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050 Hammam-Lif, Tunisie
| | - Fethy Ben Hassine
- Laboratoire de Biochimie, Polyclinique de la CNSS d'El Khadra, Avenue Zobeir Ibn El Awam 1003 Cité El Khadra Tunis, Tunisie
| | | | - Ahmed El May
- Unité de recherche no. 01/UR/07-08, Faculty of Medicine of Tunis, Tunisia
| | - Ezzedine Aouani
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050 Hammam-Lif, Tunisie
- Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Tunisie
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11
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Mokni M, Hamlaoui S, Karkouch I, Amri M, Marzouki L, Limam F, Aouani E. Resveratrol Provides Cardioprotection after Ischemia/reperfusion Injury via Modulation of Antioxidant Enzyme Activities. Iran J Pharm Res 2013; 12:867-75. [PMID: 24523766 PMCID: PMC3920701] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In this study, we investigated the cardioprotective effects of resveratrol. Rats were intraperitoneally administered with resveratrol (25 mg/kg bw) or vehicle (ethanol 10%) for 7 days and their heart subjected to ischemia/reperfusion injury. Isolated hearts were langendorff perfused, left ventricular functions as heart rate and developed pressure, as well as, heart antioxidant status were determined. Data showed that resveratrol improved recovery of post-ischemic ventricular functions when compared to control. Resveratrol also improved myocardial lipoperoxidation, free iron and antioxidant enzyme activities. Resveratrol decreased significantly catalase while it increased peroxidase and superoxide dismutase activities. In this later case, native PAGE analysis of superoxide dismutase isoforms revealed that resveratrol up regulated iron and manganese isoforms. Resveratrol exerted potential cardioprotection partly by its antioxidant properties.
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Affiliation(s)
- Meherzia Mokni
- Neurophysiology Laboratory and Functional Pathology, Department of Biological Sciences, Faculty of Sciences of Tunis, University Campus of Al-manar, Tunisia, Tunis.
| | - Sonia Hamlaoui
- Neurophysiology Laboratory and Functional Pathology, Department of Biological Sciences, Faculty of Sciences of Tunis, University Campus of Al-manar, Tunisia, Tunis.
| | - Ines Karkouch
- Bioactive Substance Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050 Hammam-Lif, Tunis.
| | - Mohamed Amri
- Neurophysiology Laboratory and Functional Pathology, Department of Biological Sciences, Faculty of Sciences of Tunis, University Campus of Al-manar, Tunisia, Tunis.
| | - Lamjed Marzouki
- Neurophysiology Laboratory and Functional Pathology, Department of Biological Sciences, Faculty of Sciences of Tunis, University Campus of Al-manar, Tunisia, Tunis.
| | - Ferid Limam
- Bioactive Substance Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050 Hammam-Lif, Tunis.
| | - Ezzedine Aouani
- Bioactive Substance Laboratory, Biotechnology Centre, Technopolis Borj-Cedria, BP-901, 2050 Hammam-Lif, Tunis.
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12
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Charradi K, Elkahoui S, Karkouch I, Limam F, Hassine FB, Aouani E. Grape seed and skin extract prevents high-fat diet-induced brain lipotoxicity in rat. Neurochem Res 2012; 37:2004-13. [PMID: 22684284 DOI: 10.1007/s11064-012-0821-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 05/26/2012] [Accepted: 05/28/2012] [Indexed: 11/30/2022]
Abstract
Obesity is related to an elevated risk of dementia and the physiologic mechanisms whereby fat adversely affects the brain are poorly understood. The present investigation analyzed the effect of a high fat diet (HFD) on brain steatosis and oxidative stress and the intracellular mediators involved in signal transduction, as well as the protection offered by grape seed and skin extract (GSSE). HFD induced ectopic deposition of cholesterol and phospholipid but not triglyceride. Moreover brain lipotoxicity is linked to an oxidative stress characterized by increased lipoperoxidation and carbonylation, inhibition of glutathione peroxidase and superoxide dismutase activities, depletion of manganese and a concomitant increase in ionizable calcium and acetylcholinesterase activity. Importantly GSSE alleviated all the deleterious effects of HFD treatment. Altogether our data indicated that HFD could find some potential application in the treatment of manganism and that GSSE should be used as a safe anti-lipotoxic agent in the prevention and treatment of fat-induced brain injury.
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Affiliation(s)
- Kamel Charradi
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050 Hammam-Lif, Tunisia
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13
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Tabbene O, Kalai L, Ben Slimene I, Karkouch I, Elkahoui S, Gharbi A, Cosette P, Mangoni ML, Jouenne T, Limam F. Anti-Candida effect of bacillomycin D-like lipopeptides from Bacillus subtilis B38. FEMS Microbiol Lett 2011; 316:108-14. [DOI: 10.1111/j.1574-6968.2010.02199.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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14
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Tabbene O, Karkouch I, Slimene IB, Elfeddy N, Cosette P, Mangoni ML, Jouenne T, Limam F. Triggering of the antibacterial activity of Bacillus subtilis B38 strain against methicillin-resistant Staphylococcus aureus. Appl Biochem Biotechnol 2010; 164:34-44. [PMID: 20972890 DOI: 10.1007/s12010-010-9112-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Accepted: 10/11/2010] [Indexed: 10/18/2022]
Abstract
When cultured in minimal growth medium, the B38 strain of Bacillus subtilis did not exhibit any antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) clinical isolate. Coculturing B38 strain with viable MRSA cells weakly increased antibacterial activity production (20 AU/ml). Addition of dead MRSA cells in a B38 culture, increased by 8-fold the B. subtilis strain antibacterial activity reaching 160 AU/ml against MRSA strain. This antibacterial activity recovered from cell-free supernatants was stimulated by an autoinducing compound which is sensitive to the action of proteinase K suggesting a proteinaceous nature. This compound was heat-stable till 80 °C and showed a molecular mass around 20 kDa as determined by SDS-PAGE. These results suggest that the production of antibacterial compounds by B38 strain is dependent on the amount of the autoinducing compound.
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Affiliation(s)
- Olfa Tabbene
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj-Cedria, BP-901, Hammam-lif Cedex, Tunisia
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15
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Tabbene O, Karkouch I, Elkahoui S, Cosette P, Mangoni ML, Jouenne T, Limam F. A new antibacterial and antioxidant S07-2 compound produced byBacillus subtilis B38. FEMS Microbiol Lett 2010; 303:176-82. [DOI: 10.1111/j.1574-6968.2009.01875.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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