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Photothermal nanofibrillar membrane based on hyaluronic acid and graphene oxide to treat Staphylococcus aureus and Pseudomonas aeruginosa infected wounds. Int J Biol Macromol 2022; 214:470-479. [PMID: 35760161 DOI: 10.1016/j.ijbiomac.2022.06.144] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 12/25/2022]
Abstract
Here we reported the fabrication of an electrospun membrane based on a hyaluronic acid derivative (HA-EDA) to be used as a bandage for the potential treatment of chronic wounds. The membrane, loaded with graphene oxide (GO) and ciprofloxacin, showed photothermal properties and light-triggered drug release when irradiated with a near-infrared (NIR) laser beam. Free amino groups of HA-EDA derivative allowed autocrosslinking of the electrospun membrane; thus, a substantial enhancement in the hydrolytic resistance of the patch was obtained. In vitro antibacterial activity studies performed on Staphylococcus aureus and Pseudomonas aeruginosa revealed that such electrospun membranes, due to the synergistic effect of the antibiotic and NIR-mediated hyperthermia, reduced the viability of both pathogens. Specific in vitro experiment demonstrated also that is possible to disrupt, through laser irradiation, the biofilms formed onto the membrane.
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2
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Bongiovì F, Fiorica C, Palumbo FS, Pitarresi G, Giammona G. Hyaluronic acid based nanohydrogels fabricated by microfluidics for the potential targeted release of Imatinib: Characterization and preliminary evaluation of the antiangiogenic effect. Int J Pharm 2020; 573:118851. [DOI: 10.1016/j.ijpharm.2019.118851] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/28/2019] [Accepted: 11/04/2019] [Indexed: 01/18/2023]
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3
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Jivan F, Alge DL. Bio-orthogonal, Site-Selective Conjugation of Recombinant Proteins to Microporous Annealed Particle Hydrogels for Tissue Engineering. ADVANCED THERAPEUTICS 2020; 3:1900148. [PMID: 38882245 PMCID: PMC11178337 DOI: 10.1002/adtp.201900148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Indexed: 06/18/2024]
Abstract
Protein conjugation to biomaterial scaffolds is a powerful approach for tissue engineering. However, typical chemical conjugation methods lack site-selectivity and can negatively impact protein bioactivity. To overcome this problem, a site-selective strategy is reported here for installing tetrazine groups on terminal poly-histidines (His-tags) of recombinant proteins. These tetrazine groups are then leveraged for bio-orthogonal conjugation to poly(ethylene glycol) (PEG) hydrogel microparticles, which are subsequently assembled into microporous annealed particle (MAP) hydrogels. Efficacy of the strategy is demonstrated using recombinant, green fluorescent protein with a His tag (His-GFP), which enhanced fluorescence of the MAP hydrogels compared to control protein lacking tetrazine groups. Subsequently, to demonstrate efficacy with a therapeutic protein, recombinant human bone morphogenetic protein-2 (His-BMP2) was conjugated. Human mesenchymal stem cells growing in the MAP hydrogels responded to the conjugated BMP2 and significantly increased mineralization after 21 days compared to controls. Thus, this site-selective protein modification strategy coupled with bio-orthogonal click chemistry is expected to be useful for bone defect repair and regeneration therapies. Broader application to the integration of protein therapeutics with biomaterials is also envisioned.
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Affiliation(s)
- Faraz Jivan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Daniel L Alge
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77843, USA
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4
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Palumbo FS, Bongiovì F, Carfì Pavia F, Vitrano I, La Carrubba V, Pitarresi G, Brucato V, Giammona G. Blend scaffolds with polyaspartamide/polyester structure fabricated via TIPS and their RGDC functionalization to promote osteoblast adhesion and proliferation. J Biomed Mater Res A 2019; 107:2726-2735. [PMID: 31404485 DOI: 10.1002/jbm.a.36776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/30/2019] [Accepted: 08/07/2019] [Indexed: 12/15/2022]
Abstract
Target of this work was to prepare a RGDC functionalized hybrid biomaterial via TIPS technique to achieve a more efficient control of osteoblast adhesion and diffusion on the three-dimensional (3D) scaffolds. Starting from a crystalline poly(l-lactic acid) (PLLA) and an amorphous α,β-poly(N-2-hydroxyethyl) (2-aminoethylcarbamate)-d,l-aspartamide-graft-polylactic acid (PHEA-EDA-g-PLA) copolymer, blend scaffolds were characterized by an appropriate porosity and pore interconnection. The PHEA-EDA-PLA interpenetration with PLLA improved hydrolytic susceptibility of hybrid scaffolds. The presence of free amino groups on scaffolds allowed to tether the cyclic RGD peptide (RGDC) via Michael addition using the maleimide chemistry. Cell culture test carried out on preosteoblastic cells MC3T3-E1 incubated with scaffolds, has evidenced cell adhesion and proliferation. Furthermore, the presence of distributed bone matrix on all scaffolds was evaluated after 70 days compared to PLLA only samples.
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Affiliation(s)
- Fabio S Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy
| | - Flavia Bongiovì
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy
| | - Francesco Carfì Pavia
- Dipartimento di Ingegneria, Bio and Tissue Engineering Lab, Università di Palermo, Palermo, Italy.,Advanced Technologies Network (ATeN) Center, Palermo, Italy.,Interuniversitary Consortium of Material Science and Technology (INSTM) - Palermo Research Unit, Palermo, Italy
| | - Ilenia Vitrano
- Dipartimento di Ingegneria, Bio and Tissue Engineering Lab, Università di Palermo, Palermo, Italy
| | - Vincenzo La Carrubba
- Dipartimento di Ingegneria, Bio and Tissue Engineering Lab, Università di Palermo, Palermo, Italy.,Advanced Technologies Network (ATeN) Center, Palermo, Italy.,Interuniversitary Consortium of Material Science and Technology (INSTM) - Palermo Research Unit, Palermo, Italy
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy
| | - Valerio Brucato
- Dipartimento di Ingegneria, Bio and Tissue Engineering Lab, Università di Palermo, Palermo, Italy.,Interuniversitary Consortium of Material Science and Technology (INSTM) - Palermo Research Unit, Palermo, Italy
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy.,Italian National Research Council, Institute of Biophysics, Palermo, Italy
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Mehanna MM, Shabarek MI, Elmaradny HA, Elmartadny HA. Spray-dried pH-sensitive microparticles: effectual methodology to ameliorate the bioavailability of acid labile pravastatin. Drug Dev Ind Pharm 2018; 45:485-497. [PMID: 30575415 DOI: 10.1080/03639045.2018.1562465] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Pravastatin is a promising drug utilized in the treatment of hyperlipidemia, yet, its main clinical limitation is due to gastric liability which fractions its oral bioavailability to less than 18%. The purpose of the current study is to encapsulate pravastatin into Eudragit®-based spray-dried microparticles aspiring to overcome its acid liability. With the aim to optimize the microparticles, formulation and process parameters were studied through acid resistance challenging test. Physicochemical characterization of the optimized spray-dried pH-sensitive microparticles namely; in-vitro dissolution, surface morphology, compatibility, and solid-state studies were performed. Moreover, in-vivo evaluation of the microparticles and accelerated stability studies were carried out. The results outlined that polymer to drug ratio at 5:1 and pravastatin concentration at 1%w/w in spray-drying feed solution showed 38.55% and 53.97% encapsulation efficiency, respectively. The significance of process parameters specifically; the flow rate and the inlet temperature on microparticles surface integrity were observed, and optimized until encapsulating efficiency reached 72.37%. The scanning electron microscopical examination of the optimized microparticles illustrate uniform smooth surface spheres entrapping the drug in an amorphous state as proved through Differential Scanning Calorimetry (DSC) and Fourier Transfer Infrared (FTIR) studies. The in-vivo evaluation demonstrated a 5-fold enhancement in pravastatin bioavailability compared to the marketed product. The results provided evidence for the significance of spray-dried pH-sensitive microparticles as a promising carrier for pravastatin, decreasing its acid liability, and improving its bioavailability.
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Affiliation(s)
- Mohammed M Mehanna
- a Faculty of Pharmacy, Pharmaceutical Technology Department , Beirut Arab University , Beirut , Lebanon.,b Faculty of Pharmacy, Industrial Pharmacy Department , Alexandria University , Alexandria , Egypt
| | | | | | - Hoda A Elmartadny
- a Faculty of Pharmacy, Pharmaceutical Technology Department , Beirut Arab University , Beirut , Lebanon
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Palumbo FS, Agnello S, Fiorica C, Pitarresi G, Giammona G. Chemical stiffening of constructs between polymeric microparticles based on a hyaluronic acid derivative and mesenchymal stem cells: rheological and in vitro
viability studies. POLYM INT 2018. [DOI: 10.1002/pi.5722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fabio S Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Stefano Agnello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
- Institute of Biophysics at Palermo, Italian National Research Council; Palermo Italy
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7
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Bongiovì F, Fiorica C, Palumbo FS, Di Prima G, Giammona G, Pitarresi G. Imatinib-Loaded Micelles of Hyaluronic Acid Derivatives for Potential Treatment of Neovascular Ocular Diseases. Mol Pharm 2018; 15:5031-5045. [DOI: 10.1021/acs.molpharmaceut.8b00620] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Flavia Bongiovì
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Fabio S. Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Giulia Di Prima
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
- Institute of Biophysics at Palermo, Italian National Research Council, Via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
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Agnello S, Palumbo FS, Pitarresi G, Fiorica C, Giammona G. Synthesis and evaluation of thermo-rheological behaviour and ionotropic crosslinking of new gellan gum-alkyl derivatives. Carbohydr Polym 2018; 185:73-84. [PMID: 29421062 DOI: 10.1016/j.carbpol.2018.01.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 01/05/2018] [Accepted: 01/05/2018] [Indexed: 12/22/2022]
Abstract
This paper reports the synthesis and the physicochemical characterization of two series of gellan gum (GG) derivatives functionalized with alkyl chains with different number of carbon, from 8 to 18. In particular, low molecular weight gellan gum samples with 52.6 or 96.7 kDa, respectively, were functionalized with octylamine (C8), dodecylamine (C12) and octadecylamine (C18) by using bis(4-nitrophenyl) carbonate (4-NPBC) as a coupling agent. Thermo-rheological and ionotropic crosslinking properties of these gellan gum-alkyl derivatives were evaluated and related to the degree of derivatization in alkyl chains. Results suggested as length and degree of derivatization differently influenced coil-to-helix gelation mechanism of GG derivatives, ionotropic crosslinking, and strength of crosslinked hydrogels obtained in CaCl2 0.102 M and NaCl 0.15 M. Statement of hypothesis: The insertion of alkyl chains on the gellan gum backbone interferes with coil-to-helix transition mechanism and allows the production of hydrophobically assembled hydrogels.
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Affiliation(s)
- Stefano Agnello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Fabio Salvatore Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy.
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy; Mediterranean Center of Human Health Advanced Biotechnologies (CHAB), AteN Center, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy; Institute of Biophysics at Palermo, Italian National Research Council, Via Ugo La Malfa 153, 90146 Palermo, Italy.
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Palumbo FS, Fiorica C, Pitarresi G, Zingales M, Bologna E, Giammona G. Multifibrillar bundles of a self-assembling hyaluronic acid derivative obtained through a microfluidic technique for aortic smooth muscle cell orientation and differentiation. Biomater Sci 2018; 6:2518-2526. [DOI: 10.1039/c8bm00647d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A hyaluronic acid derivative able to physically crosslink in a saline aqueous medium was employed for the production of fibers with a mean diameter of 50 μm using a microfluidic technique.
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Affiliation(s)
- Fabio Salvatore Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF)
- Università degli Studi di Palermo
- 90123 Palermo
- Italy
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF)
- Università degli Studi di Palermo
- 90123 Palermo
- Italy
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF)
- Università degli Studi di Palermo
- 90123 Palermo
- Italy
| | | | - Emanuela Bologna
- Dipartimento di Ingegneria Civile
- Ambientale
- Aerospaziale
- dei Materiali
- Palermo
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF)
- Università degli Studi di Palermo
- 90123 Palermo
- Italy
- Institute of Biophysics at Palermo
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