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Avossa J, Pota G, Vitiello G, Macagnano A, Zanfardino A, Di Napoli M, Pezzella A, D'Errico G, Varcamonti M, Luciani G. Multifunctional mats by antimicrobial nanoparticles decoration for bioinspired smart wound dressing solutions. Mater Sci Eng C Mater Biol Appl 2021; 123:111954. [PMID: 33812582 DOI: 10.1016/j.msec.2021.111954] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/31/2021] [Accepted: 02/04/2021] [Indexed: 12/18/2022]
Abstract
Developing advanced materials for wound dressings is a very challenging, yet unaddressed task. These systems are supposed to act as temporary skin substitutes, performing multiple functions, including fluid absorption and antimicrobial action, supporting cell proliferation and migration in order to promote the skin regeneration process. Following a global bioinspired approach, in this study, we developed a multifunctional textile for wound dressing applications. Biodegradable polyhydroxybutyrate/poly-3-caprolactone (PHB/PCL) mats were fabricated by electrospinning to mimic the extracellular matrix (ECM), thus providing structural and biochemical support to tissue regeneration. Furthermore, inspired by nature's strategy which exploits melanin as an effective weapon against pathogens infection, PHB/PCL mats were modified with hybrid Melanin-TiO2 nanostructures. These were combined to PHB/PCL mats following two different strategies: in-situ incorporation during electrospinning process, alternately ex-post coating by electrospraying onto obtained mats. All samples revealed huge water uptake and poor cytotoxicity towards HaCat eukaryotic cells. Melanin-TiO2 coating conferred PHB/PCL mats significant antimicrobial activity towards both Gram(+) and Gram(-) strains, marked hydrophilic properties as well as bioactivity which is expected to promote materials-cells interaction. This study is going to provide a novel paradigm for the design of active wound dressings for regenerative medicine.
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Affiliation(s)
- J Avossa
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland; Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, Monterotondo 00016, Italy
| | - G Pota
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", p.le V. Tecchio 80, 80125 Naples, Italy
| | - G Vitiello
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", p.le V. Tecchio 80, 80125 Naples, Italy; CSGI, Center for Colloid and Surface Science, Sesto Fiorentino, via della Lastruccia 3, Firenze, Italy
| | - A Macagnano
- Institute of Atmospheric Pollution Research-National Research Council (IIA-CNR), Research Area of Rome 1, Via Salaria km 29,300, Monterotondo 00016, Italy
| | - A Zanfardino
- Department of Biology, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
| | - M Di Napoli
- Department of Biology, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
| | - A Pezzella
- Department of Physics "Ettore Pancini", University of Naples Federico II, Via Cinthia 4, 80126 Naples, Italy; Institute for Polymers Composites and Biomaterials (IPCB) CNR, Via Campi Flegrei 34, I-80078 Pozzuoli, NA, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti, 9, 50121 Florence, Italy
| | - G D'Errico
- CSGI, Center for Colloid and Surface Science, Sesto Fiorentino, via della Lastruccia 3, Firenze, Italy; Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
| | - M Varcamonti
- Department of Biology, University of Naples "Federico II", Via Cintia 4, I-80126 Naples, Italy
| | - G Luciani
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", p.le V. Tecchio 80, 80125 Naples, Italy.
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Napoli MD, Luccia BD, Vitiello G, D'Errico G, Carpentieri A, Pezzella A, Pizzo E, Notomista E, Varcamonti M, Zanfardino A. Characterisation of EFV12 a bio-active small peptide produced by the human intestinal isolate Lactobacillus gasseri SF1109. Benef Microbes 2020; 11:815-824. [PMID: 33245013 DOI: 10.3920/bm2020.0124] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
EFV12 is a small bioactive peptide produced by Lactobacillus gasseri SF1109, a human intestinal isolate with probiotic features. In this study, EFV12 antimicrobial and anti-inflammatory properties are characterised. In particular, we propose a possible mechanism of action for EFV12 involving bacterial membranes targeting. Moreover, we show that this small peptide is able to bind lipopolysaccharides (LPS) and to counteract its inflammatory insult preventing LPS action on Toll-like receptor 4, thus interfering with extracellular signal-regulated kinase, p38 and Jun N-terminal kinase, mitogen-activated protein kinases signalling pathways. Altogether these observations suggest that the bioactive peptide EFV12 is a good candidate to promote L. gasseri induced gut homeostasis and counteracting intestinal pathogens.
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Affiliation(s)
- M Di Napoli
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - B Di Luccia
- Department of Pathology and immunology, Washington University in St. Louis, 425 Euclid Ave, St. Louis, MO 63110, USA
| | - G Vitiello
- Department of Chemical Engineering, Materials and Industrial Production, University of Naples Federico II, P.le Tecchio 80, 80125 Napels, Italy
| | - G D'Errico
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - A Carpentieri
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - A Pezzella
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - E Pizzo
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - E Notomista
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - M Varcamonti
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - A Zanfardino
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
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Bosso A, Pirone L, Gaglione R, Pane K, Del Gatto A, Zaccaro L, Di Gaetano S, Diana D, Fattorusso R, Pedone E, Cafaro V, Haagsman HP, van Dijk A, Scheenstra MR, Zanfardino A, Crescenzi O, Arciello A, Varcamonti M, Veldhuizen EJA, Di Donato A, Notomista E, Pizzo E. A new cryptic host defense peptide identified in human 11-hydroxysteroid dehydrogenase-1 β-like: from in silico identification to experimental evidence. Biochim Biophys Acta Gen Subj 2017; 1861:2342-2353. [PMID: 28454736 DOI: 10.1016/j.bbagen.2017.04.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 04/05/2017] [Accepted: 04/24/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Host defence peptides (HDPs) are evolutionarily conserved components of innate immunity. Human HDPs, produced by a variety of immune cells of hematopoietic and epithelial origin, are generally grouped into two families: beta structured defensins and variably-structured cathelicidins. We report the characterization of a very promising cryptic human HDP, here called GVF27, identified in 11-hydroxysteroid dehydrogenase-1 β-like protein. METHODS Conformational analysis of GVF27 and its propensity to bind endotoxins were performed by NMR, Circular Dichroism, Fluorescence and Dynamic Light Scattering experiments. Crystal violet and WST-1 assays, ATP leakage measurement and colony counting procedures were used to investigate antimicrobial, anti-biofilm, cytotoxicity and hemolytic activities. Anti-inflammatory properties were evaluated by ELISA. RESULTS GVF27 possesses significant antibacterial properties on planktonic cells and sessile bacteria forming biofilm, as well as promising dose dependent abilities to inhibit attachment or eradicate existing mature biofilm. It is unstructured in aqueous buffer, whereas it tends to assume a helical conformation in mimic membrane environments as well as it is able to bind lipopolysaccharide (LPS) and lipoteichoic acid (LTA). Notably it is not toxic towards human and murine cell lines and triggers a significant innate immune response by attenuating expression levels of pro-inflammatory interleukins and release of nitric oxide in LPS induced macrophages. CONCLUSION Human GVF27 may offer significant advantages as leads for the design of human-specific therapeutics. GENERAL SIGNIFICANCE Human cryptic host defence peptides are naturally no immunogenic and for this they are a real alternative for solving the lack of effective antibiotics to control bacterial infections.
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Affiliation(s)
- A Bosso
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; Department of Infectious Diseases and Immunology, Utrecht University, 3584 CS Utrecht, Holland
| | | | - R Gaglione
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; Department of Infectious Diseases and Immunology, Utrecht University, 3584 CS Utrecht, Holland
| | - K Pane
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | | | | | | | - D Diana
- IBB, CNR, 80134 Naples, Italy
| | - R Fattorusso
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", I-81100 Caserta, Italy
| | | | - V Cafaro
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - H P Haagsman
- Department of Infectious Diseases and Immunology, Utrecht University, 3584 CS Utrecht, Holland
| | - A van Dijk
- Department of Infectious Diseases and Immunology, Utrecht University, 3584 CS Utrecht, Holland
| | - M R Scheenstra
- Department of Infectious Diseases and Immunology, Utrecht University, 3584 CS Utrecht, Holland
| | - A Zanfardino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - O Crescenzi
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - A Arciello
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - M Varcamonti
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - E J A Veldhuizen
- Department of Infectious Diseases and Immunology, Utrecht University, 3584 CS Utrecht, Holland
| | - A Di Donato
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - E Notomista
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - E Pizzo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy.
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Zanfardino A, Criscuolo G, Di Luccia B, Pizzo E, Ciavatta M, Notomista E, Carpentieri A, Pezzella A, Varcamonti M. Identification of a new small bioactive peptide from Lactobacillus gasseri supernatant. Benef Microbes 2017; 8:133-141. [DOI: 10.3920/bm2016.0098] [Citation(s) in RCA: 10] [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: 11/19/2022]
Abstract
Ten lactic acid bacteria (LAB) strains, previously isolated from human ileal biopsy of healthy volunteers, were screened for production and secretion of molecules having anti-bacterial and anti-biofilm activities. Because many recent reports indicate that LAB secreted molecules may exert immune-modulatory action, we also tested the effect on human intestinal HCT116 cells challenged with bacterial lipopolysaccharides. One of the Lactobacillus gasseri strains, SF1109, strongly inhibited: (1) Pseudomonas aeruginosa growth; (2) Escherichia coli biofilm production; (3) LPS induction of P-ERK1/2 in HCT116 cells, and was selected for further characterisation of the secreted active molecule. Cell-free supernatant of the L. gasseri SF1109 was analysed and one 1.3 kDa peptide has been characterised. Eight out twelve amino acids of this peptide were identified allowing the synthesis of an octa-peptide which still presented the mentioned activities.
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Affiliation(s)
- A. Zanfardino
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - G. Criscuolo
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - B. Di Luccia
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - E. Pizzo
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - M.L. Ciavatta
- CNR - Institute of Biomolecular Chemistry, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - E. Notomista
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - A. Carpentieri
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - A. Pezzella
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
| | - M. Varcamonti
- Department of Biology, University of Naples Federico II, Via Cintia, 80126 Naples, Italy
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Cateni F, Zacchigna M, Procida G, Zilic J, Cordone A, Zanfardino A, Varcamonti M. Cholane and Lanostane Derivatives: Antimicrobial Evaluation. ChemistrySelect 2016. [DOI: 10.1002/slct.201600556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- F. Cateni
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - M. Zacchigna
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - G. Procida
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - J. Zilic
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - A. Cordone
- Department of Biology; University of Naples Federico II; Complesso Universitario di Monte S. Angelo; Via Cinthia - Edificio 7 80126 Napoli Italy
| | - A. Zanfardino
- Department of Biology; University of Naples Federico II; Complesso Universitario di Monte S. Angelo; Via Cinthia - Edificio 7 80126 Napoli Italy
| | - M. Varcamonti
- Department of Biology; University of Naples Federico II; Complesso Universitario di Monte S. Angelo; Via Cinthia - Edificio 7 80126 Napoli Italy
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Abstract
Polyclonal antibodies were raised against LcnC and LcnD proteins of the Lactococcus lactis bacteriocin lactococcin A secretory system to examine their cellular location and interaction. Two major reacting bands were detected by Western immunoblot with the anti-LcnD antibody: one of 52 kDa (LcnD) and another of 45 kDa, called here LcnD*. LcnD* was still detectable after removing the AUG start codon for LcnD. Chemical cross-linking analyses of membrane fractions of L. lactis cells expressing the LcnC/D secretion machinery were performed. Our results indicate that LcnD is present in the secretion machinery complex as a dimer and is able to interact with LcnD* and LcnC.
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Affiliation(s)
- M Varcamonti
- Biomolecular Sciences and Biotechnology Institute, Department of Genetics, University of Groningen, Haren, The Netherlands.
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7
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Marasco R, Muscariello L, Varcamonti M, De Felice M, Sacco M. Expression of the bglH gene of Lactobacillus plantarum is controlled by carbon catabolite repression. J Bacteriol 1998; 180:3400-4. [PMID: 9642194 PMCID: PMC107296 DOI: 10.1128/jb.180.13.3400-3404.1998] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [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: 02/07/2023] Open
Abstract
A newly identified bglH gene coding for a phospho-beta-glucosidase of Lactobacillus plantarum was isolated and expressed in Escherichia coli. The sequence analysis of the cloned DNA fragment showed an open reading frame encoding a 480-amino-acid protein with a calculated molecular mass of 53 kDa. The bglH gene was shown to be expressed on a monocistronic transcriptional unit. Its transcription was repressed 10-fold in L. plantarum cells grown on glucose compared to the beta-glucoside salicin as a sole carbon source. A catabolite-responsive element (CRE) spanning from -3 to +11 with respect to the transcriptional start point was found, and its functionality was assessed by mutational analysis. In vitro and in vivo DNA binding experiments suggested the occurrence of a DNA-protein complex at the CRE site, which would mediate glucose repression of bglH expression.
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Affiliation(s)
- R Marasco
- Dipartimento di Chimica, Università degli Studi di Salerno, Italy
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Abstract
We report the cloning of a 2-kb PstI-BamHI fragment of Bacillus subtilis DNA carrying an open reading frame of 1398 bp, herein designated orfRM1. This orf was shown to be transcribed only during vegetative growth from a putative sigma A-specific promoter. The deduced amino acid sequence predicted a polypeptide of 51 kDa (466 aa), which shows significant percentage of identity with the Escherichia coli Prc protein. However no Prc-like phenotypes were observed in a B. subtilis orfRM1 deletion-insertion mutant.
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Affiliation(s)
- R Marasco
- Dipartimento di Chimica, Università degli Studi di Salerno, Fisciano, (SA) Italy
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Marasco R, Varcamonti M, La Cara F, Ricca E, De Felice M, Sacco M. In vivo footprinting analysis of Lrp binding to the ilvIH promoter region of Escherichia coli. J Bacteriol 1994; 176:5197-201. [PMID: 8071194 PMCID: PMC196701 DOI: 10.1128/jb.176.17.5197-5201.1994] [Citation(s) in RCA: 27] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
An in vivo footprinting analysis of the ilvIH regulatory region of Escherichia coli showed that the transcription activator Lrp binds to six sites, scattered over 250 bp upstream of the transcriptional start point. When Lrp-mediated activation was impaired by the presence of exogenous leucine, only one promoter-distal site (site 2) was partially protected by Lrp binding. Equilibrium dialysis experiments showed the formation of an Lrp-leucine complex in vitro. These results suggest that leucine negatively affects ilvIH transcription because its interaction with Lrp reduces the efficiency of binding of the regulatory protein to the promoter region.
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Affiliation(s)
- R Marasco
- Dipartimento di Fisiologia Generale ed Ambientale, Università Federico II, Naples, Italy
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