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Rampazzo R, Vavasori A, Ronchin L, Riello P, Marchiori M, Saorin G, Beghetto V. Enhanced Antibacterial Activity of Vancomycin Loaded on Functionalized Polyketones. Polymers (Basel) 2024; 16:1890. [PMID: 39000745 PMCID: PMC11244503 DOI: 10.3390/polym16131890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/17/2024] Open
Abstract
Today, polymeric drug delivery systems (DDS) appear as an interesting solution against bacterial resistance, having great advantages such as low toxicity, biocompatibility, and biodegradability. In this work, two polyketones (PK) have been post-functionalized with sodium taurinate (PKT) or potassium sulfanilate (PKSK) and employed as carriers for Vancomycin against bacterial infections. Modified PKs were easily prepared by the Paal-Knorr reaction and loaded with Vancomycin at a variable pH. All polymers were characterized by FT-IR, DSC, TGA, SEM, and elemental analysis. Antimicrobial activity was tested against Gram-positive Staphylococcus aureus ATCC 25923 and correlated to the different pHs used for its loading (between 2.3 and 8.8). In particular, the minimum inhibitory concentrations achieved with PKT and PKSK loaded with Vancomycin were similar, at 0.23 μg/mL and 0.24 μg/mL, respectively, i.e., six times lower than that with Vancomycin alone. The use of post-functionalized aliphatic polyketones has thus been demonstrated to be a promising way to obtain very efficient polymeric DDS.
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Affiliation(s)
- Rachele Rampazzo
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
- Department of Architecture and Industrial Design, University of Campania “Luigi Vanvitelli”, 81031 Aversa, Italy
| | - Andrea Vavasori
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Lucio Ronchin
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Pietro Riello
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Martina Marchiori
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Gloria Saorin
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Valentina Beghetto
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
- Crossing S.r.l., Viale della Repubblica 193/b, 31100 Treviso, Italy
- Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi (CIRCC), Via C. Ulpiani 27, 701268 Bari, Italy
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2
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Karam M, Faraj M, Jaffa MA, Jelwan J, Aldeen KS, Hassan N, Mhanna R, Jaffa AA. Development of alginate and alginate sulfate/polycaprolactone nanoparticles for growth factor delivery in wound healing therapy. Biomed Pharmacother 2024; 175:116750. [PMID: 38749174 DOI: 10.1016/j.biopha.2024.116750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/10/2024] [Accepted: 05/10/2024] [Indexed: 06/03/2024] Open
Abstract
Connective tissue growth factor (CTGF) holds great promise for enhancing the wound healing process; however, its clinical application is hindered by its low stability and the challenge of maintaining its effective concentration at the wound site. Herein, we developed novel double-emulsion alginate (Alg) and heparin-mimetic alginate sulfate (AlgSulf)/polycaprolactone (PCL) nanoparticles (NPs) for controlled CTGF delivery to promote accelerated wound healing. The NPs' physicochemical properties, cytocompatibility, and wound healing activity were assessed on immortalized human keratinocytes (HaCaT), primary human dermal fibroblasts (HDF), and a murine cutaneous wound model. The synthesized NPs had a minimum hydrodynamic size of 200.25 nm. Treatment of HaCaT and HDF cells with Alg and AlgSulf2.0/PCL NPs did not show any toxicity when used at concentrations <50 µg/mL for up to 72 h. Moreover, the NPs' size was not affected by elevated temperatures, acidic pH, or the presence of a protein-rich medium. The NPs have slow lysozyme-mediated degradation implying that they have an extended tissue retention time. Furthermore, we found that treatment of HaCaT and HDF cells with CTGF-loaded Alg and AlgSulf2.0/PCL NPs, respectively, induced rapid cell migration (76.12% and 79.49%, P<0.05). Finally, in vivo studies showed that CTGF-loaded Alg and AlgSulf2.0/PCL NPs result in the fastest and highest wound closure at the early and late stages of wound healing, respectively (36.49%, P<0.001 on day 1; 90.45%, P<0.05 on day 10), outperforming free CTGF. Double-emulsion NPs based on Alg or AlgSulf represent a viable strategy for delivering heparin-binding GF and other therapeutics, potentially aiding various disease treatments.
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Affiliation(s)
- Mia Karam
- Biomedical Engineering Program, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut 1107 2020, Lebanon; Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut Lebanon
| | - Marwa Faraj
- Biomedical Engineering Program, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut 1107 2020, Lebanon; Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut Lebanon
| | - Miran A Jaffa
- Epidemiology and Population Health Department, Faculty of Health Sciences, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon
| | - Joseph Jelwan
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut Lebanon
| | - Kawthar Sharaf Aldeen
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut Lebanon
| | - Nadine Hassan
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut Lebanon
| | - Rami Mhanna
- Biomedical Engineering Program, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut 1107 2020, Lebanon.
| | - Ayad A Jaffa
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut Lebanon.
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3
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Villate A, Barreto GP, Nicolás MS, Aizpurua-Olaizola O, Olivares M, Usobiaga A. Development, Characterization and In Vitro Gastrointestinal Release of PLGA Nanoparticles Loaded with Full-Spectrum Cannabis Extracts. AAPS PharmSciTech 2024; 25:120. [PMID: 38816596 DOI: 10.1208/s12249-024-02836-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/08/2024] [Indexed: 06/01/2024] Open
Abstract
Cannabinoids, such as ∆9-tetrahydrocannabinol (THC) and cannabidiol (CBD), are effective bioactive compounds that improve the quality of life of patients with certain chronic conditions. The copolymer poly(lactic-co-glycolic acid) (PLGA) has been used to encapsulate such compounds separately, providing pharmaceutical grade edible products with unique features. In this work, a variety of PLGA based nanoformulations that maintain the natural cannabinoid profile found in the plant (known as full-spectrum) are proposed and evaluated. Three different cannabis sources were used, representing the three most relevant cannabis chemotypes. PLGA nanocapsules loaded with different amounts of cannabinoids were prepared by nanoemulsion, and were then functionalized with three of the most common coating polymers: pectin, alginate and chitosan. In order to evaluate the suitability of the proposed formulations, all the synthesized nanocapsules were characterized, and their cannabinoid content, size, zeta-potential, morphology and in vitro bioaccessibility was determined. Regardless of the employed cannabis source, its load and the functionalization, high cannabinoid content PLGA nanocapsules with suitable particle size and zeta-potential were obtained. Study of nanocapsules' morphology and in vitro release assays in gastro-intestinal media suggested that high cannabis source load may compromise the structure of nanocapsules and their release properties, and hence, the use of lower content of cannabis source is recommended.
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Affiliation(s)
- Aitor Villate
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940, Leioa, Basque, Spain.
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), 48620, Plentzia, Basque, Spain.
| | - Gastón Pablo Barreto
- Facultad de Ingeniería, Universidad Nacional del Centro de la Provincia de Buenos Aires, Av del Valle 5737, CP7400, Olavarría, Buenos Aires, Argentina
- Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires, CIFICEN (UNCPBA-CICPBA -CONICET), Av. Del Valle 5737, B7400JWI, Olavarría, Buenos Aires, Argentina
| | - Markel San Nicolás
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940, Leioa, Basque, Spain
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), 48620, Plentzia, Basque, Spain
- Sovereign Fields S.L, Larramendi Kalea 3, 20006, Donostia, Basque, Spain
| | | | - Maitane Olivares
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940, Leioa, Basque, Spain
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), 48620, Plentzia, Basque, Spain
| | - Aresatz Usobiaga
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940, Leioa, Basque, Spain
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), 48620, Plentzia, Basque, Spain
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Sahu R, Verma R, Egbo TE, Giambartolomei GH, Singh SR, Dennis VA. Effects of prime-boost strategies on the protective efficacy and immunogenicity of a PLGA (85:15)-encapsulated Chlamydia recombinant MOMP nanovaccine. Pathog Dis 2024; 82:ftae004. [PMID: 38862192 PMCID: PMC11186516 DOI: 10.1093/femspd/ftae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/08/2024] [Accepted: 06/10/2024] [Indexed: 06/13/2024] Open
Abstract
To begin to optimize the immunization routes for our reported PLGA-rMOMP nanovaccine [PLGA-encapsulated Chlamydia muridarum (Cm) recombinant major outer membrane protein (rMOMP)], we compared two prime-boost immunization strategies [subcutaneous (SC) and intramuscular (IM-p) prime routes followed by two SC-boosts)] to evaluate the nanovaccine-induced protective efficacy and immunogenicity in female BALB/c mice. Our results showed that mice immunized via the SC and IM-p routes were protected against a Cm genital challenge by a reduction in bacterial burden and with fewer bacteria in the SC mice. Protection of mice correlated with rMOMP-specific Th1 (IL-2 and IFN-γ) and not Th2 (IL-4, IL-9, and IL-13) cytokines, and CD4+ memory (CD44highCD62Lhigh) T-cells, especially in the SC mice. We also observed higher levels of IL-1α, IL-6, IL-17, CCL-2, and G-CSF in SC-immunized mice. Notably, an increase of cytokines/chemokines was seen after the challenge in the SC, IM-p, and control mice (rMOMP and PBS), suggesting a Cm stimulation. In parallel, rMOMP-specific Th1 (IgG2a and IgG2b) and Th2 (IgG1) serum, mucosal, serum avidity, and neutralizing antibodies were more elevated in SC than in IM-p mice. Overall, the homologous SC prime-boost immunization of mice induced enhanced cellular and antibody responses with better protection against a genital challenge compared to the heterologous IM-p.
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Affiliation(s)
- Rajnish Sahu
- Center for NanoBiotechnology Research, Department of Biological Sciences, 1627 Harris Way, Alabama State University, Montgomery AL, 36104, United States
| | - Richa Verma
- Center for NanoBiotechnology Research, Department of Biological Sciences, 1627 Harris Way, Alabama State University, Montgomery AL, 36104, United States
| | - Timothy E Egbo
- US Army Medical Research Institute of Infectious Diseases, Unit 8900, DPO, AE, Box 330, 09831, United States
| | - Guillermo H Giambartolomei
- Instituto de Inmunología, Genética y Metabolismo (INIGEM). CONICET. AV. Cordoba 2351, Universidad de Buenos Aires, Buenos Aires, C1120AAR, Argentina
| | - Shree R Singh
- Center for NanoBiotechnology Research, Department of Biological Sciences, 1627 Harris Way, Alabama State University, Montgomery AL, 36104, United States
| | - Vida A Dennis
- Center for NanoBiotechnology Research, Department of Biological Sciences, 1627 Harris Way, Alabama State University, Montgomery AL, 36104, United States
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5
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Kouhjani M, Jaafari MR, Kamali H, Abbasi A, Tafaghodi M, Mousavi Shaegh SA. Microfluidic-assisted preparation of PLGA nanoparticles loaded with insulin: a comparison with double emulsion solvent evaporation method. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:306-329. [PMID: 38100556 DOI: 10.1080/09205063.2023.2287247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/14/2023] [Indexed: 12/17/2023]
Abstract
Poly lactic-co-glycolic acid (PLGA) is an ideal polymer for the delivery of small and macromolecule drugs. Conventional preparation methods of PLGA nanoparticles (NPs) result in poor control over NPs properties. In this research, a microfluidic mixer was designed to produce insulin-loaded PLGA NPs with tuned properties. Importantly; aggregation of the NPs through the mixer was diminished due to the coaxial mixing of the precursors. The micromixer allowed for the production of NPs with small size and narrow size distribution compared to the double emulsion solvent evaporation (DESE) method. Furthermore, encapsulation efficiency and loading capacity indicated a significant increase in optimized NPs produced through the microfluidic method in comparison to DESE method. NPs prepared by the microfluidic method were able to achieve a more reduction of trans-epithelial electrical resistance values in the Caco-2 cells compared to those developed by the DESE technique that leads to greater paracellular permeation. Compatibility and interaction between components were evaluated by differential scanning calorimetry and fourier transform infrared analysis. Also, the effect of NPs on cell toxicity was investigated using MTT test. Numerical simulations were conducted to analyze the effect of mixing patterns on the properties of the NPs. It was revealed that by decreasing flow rate ratio, i.e. flow rate of the organic phase to the flow rate of the aqueous phase, mixing of the two streams increases. As an alternative to the DESE method, high flexibility in modulating hydrodynamic conditions of the microfluidic mixer allowed for nanoassembly of NPs with superior insulin encapsulation at smaller particle sizes.
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Affiliation(s)
- Maryam Kouhjani
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology and Nanotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Kamali
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Abbasi
- Laboratory of Microfluidics and Medical Microsystems, BuAli Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Orthopedic Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Tafaghodi
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Nanotechnology and Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ali Mousavi Shaegh
- Laboratory of Microfluidics and Medical Microsystems, BuAli Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Orthopedic Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Clinical Research Unit, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Nouruzi E, Hosseini SM, Asghari B, Mahjoub R, Zare EN, Shahbazi MA, Kalhori F, Arabestani MR. Effect of poly (lactic-co-glycolic acid) polymer nanoparticles loaded with vancomycin against Staphylococcus aureus biofilm. BMC Biotechnol 2023; 23:39. [PMID: 37723466 PMCID: PMC10506343 DOI: 10.1186/s12896-023-00811-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/07/2023] [Indexed: 09/20/2023] Open
Abstract
Staphylococcus aureus is a unique challenge for the healthcare system because it can form biofilms, is resistant to the host's immune system, and is resistant to numerous antimicrobial therapies. The aim of this study was to investigate the effect of poly (lactic-co-glycolic acid) (PLGA) polymer nanoparticles loaded with vancomycin and conjugated with lysostaphin (PLGA-VAN-LYS) on inhibiting S. aureus biofilm formation. Nano drug carriers were produced using the double emulsion evaporation process. we examined the physicochemical characteristics of the nanoparticles, including particle size, polydispersity index (PDI), zeta potential, drug loading (DL), entrapment efficiency (EE), Lysostaphin conjugation efficiency (LCE), and shape. The effect of the nano drug carriers on S. aureus strains was evaluated by determining the minimum inhibitory concentration (MIC), conducting biofilm formation inhibition studies, and performing agar well diffusion tests. The average size, PDI, zeta potential, DL, EE, and LCE of PLGA-VAN-LYS were 320.5 ± 35 nm, 0.270 ± 0.012, -19.5 ± 1.3 mV, 16.75 ± 2.5%, 94.62 ± 2.6%, and 37% respectively. Both the agar well diffusion and MIC tests did not show a distinction between vancomycin and the nano drug carriers after 72 h. However, the results of the biofilm analysis demonstrated that the nano drug carrier had a stronger inhibitory effect on biofilm formation compared to the free drug. The use of this technology for treating hospital infections caused by the Staphylococcus bacteria may have favorable effects on staphylococcal infections, considering the efficacy of the nano medicine carrier developed in this study.
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Affiliation(s)
- Ellahe Nouruzi
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, IR, Iran
| | - Seyed Mostafa Hosseini
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, IR, Iran.
- Infectious Disease Research Center, Hamadan University of Medical Sciences, Hamadan, IR, Iran.
| | - Babak Asghari
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, IR, Iran
| | - Reza Mahjoub
- Department of Pharmacology and Toxicology, School of Pharmacy, Medicinal Plants and Natural Products Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Fereshte Kalhori
- Biotechnology department, Hamadan University of Medical Sciences, Hamadan, IR, Iran
| | - Mohammad Reza Arabestani
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, IR, Iran.
- Infectious Disease Research Center, Hamadan University of Medical Sciences, Hamadan, IR, Iran.
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Mendes AI, Fraga AG, Peixoto MJ, Aroso I, Longatto‐Filho A, Marques AP, Pedrosa J. Gellan gum spongy-like hydrogel-based dual antibiotic therapy for infected diabetic wounds. Bioeng Transl Med 2023; 8:e10504. [PMID: 37206216 PMCID: PMC10189450 DOI: 10.1002/btm2.10504] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/15/2023] [Accepted: 02/27/2023] [Indexed: 05/21/2023] Open
Abstract
Diabetic foot infection (DFI) is an important cause of morbidity and mortality. Antibiotics are fundamental for treating DFI, although bacterial biofilm formation and associated pathophysiology can reduce their effectiveness. Additionally, antibiotics are often associated with adverse reactions. Hence, improved antibiotic therapies are required for safer and effective DFI management. On this regard, drug delivery systems (DDSs) constitute a promising strategy. We propose a gellan gum (GG)-based spongy-like hydrogel as a topical and controlled DDS of vancomycin and clindamycin, for an improved dual antibiotic therapy against methicillin-resistant Staphylococcus aureus (MRSA) in DFI. The developed DDS presents suitable features for topical application, while promoting the controlled release of both antibiotics, resulting in a significant reduction of in vitro antibiotic-associated cytotoxicity without compromising antibacterial activity. The therapeutic potential of this DDS was further corroborated in vivo, in a diabetic mouse model of MRSA-infected wounds. A single DDS administration allowed a significant bacterial burden reduction in a short period of time, without exacerbating host inflammatory response. Taken together, these results suggest that the proposed DDS represents a promising strategy for the topical treatment of DFI, potentially overcoming limitations associated with systemic antibiotic administration and minimizing the frequency of administration.
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Affiliation(s)
- Ana Isabel Mendes
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
| | - Alexandra Gabriel Fraga
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
| | - Maria João Peixoto
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
| | - Ivo Aroso
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoGuimarãesPortugal
| | - Adhemar Longatto‐Filho
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
- Molecular Oncology Research CenterBarretos Cancer HospitalBarretosSão PauloBrazil
- Laboratory of Medical Investigation (LIM) 14Hospital das Clínicas da Faculdade de Medicina da Universidade de São PauloSão PauloBrazil
| | - Alexandra Pinto Marques
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoGuimarãesPortugal
| | - Jorge Pedrosa
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
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Li J, Leung SYS, Chung YL, Chow SKH, Alt V, Rupp M, Brochausen C, Chui CS, Ip M, Cheung WH, Wong RMY. Hydrogel Delivery of DNase I and Liposomal Vancomycin to Eradicate Fracture-related Methicillin-resistant Staphylococcus aureus Infection and Support Osteoporotic Fracture Healing. Acta Biomater 2023; 164:223-239. [PMID: 37019168 DOI: 10.1016/j.actbio.2023.03.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 04/07/2023]
Abstract
Fracture-related infection (FRI) is a devastating complication in orthopedic surgery. A recent study showed that FRI causes more severe infection and further delays healing in osteoporotic bone. Moreover, bacterial biofilm formed on implants cannot be eradicated by systemic antibiotics, warranting novel treatments. Here, we developed a DNase I and Vancomycin hydrogel delivery vehicle to eradicate Methicillin-resistant Staphylococcus aureus (MRSA) infection in vivo. Vancomycin was encapsulated in liposomes, and DNase I and Vancomycin/liposomal-Vancomycin was loaded on thermosensitive hydrogel. In vitro drug release test showed a burst release of DNase I (77.2%) within 72 hours and sustained release of Vancomycin (82.6%) up to day 14. The in vivo efficacy was evaluated in a clinically relevant ovariectomy (OVX) induced osteoporotic metaphyseal fracture model with MRSA infection, and a total of 120 Sprague Dawley rats were used. In the OVX with infection group, biofilm development caused a drastic inflammatory response, trabecular bone destruction, and non-union. In the DNase I and Vancomycin co-delivery hydrogel group (OVX-Inf-DVG), bacteria on bone and implant were eradicated. X-ray and micro-CT showed preservation of trabecular bone and bone union. HE staining showed the absence of inflammatory necrosis, and fracture healing was restored. The local elevation of TNF-α and IL-6 and increased number of osteoclasts were prevented in the OVX-Inf-DVG group. Our findings suggest that dual release of DNase I and Vancomycin initially followed by Vancomycin only later up to 14 days effectively eliminates MRSA infection, prevents biofilm development and provides a sterile environment to promote fracture healing in osteoporotic bone with FRI. STATEMENT OF SIGNIFICANCE: The biofilm formation on the implant is difficult to eradicate, causing recurrent infection and non-union in fracture-related infection (FRI). Here we developed a hydrogel therapy with high in vivo efficacy to eliminate MRSA biofilm infection in a clinically-relevant FRI model in osteoporotic bone. By loading DNase I and vancomycin/liposomal-vancomycin on thermosensitive poly-(DL-lactic acidco-glycolic acid) (PLGA)-polyethylene glycol (PEG)-PLGA hydrogel, a dual release of DNase I and Vancomycin was achieved whilst preserving enzyme activity. In this model, the progressive development of infection caused a drastic inflammatory response, osteoclastogenesis, trabecular bone destruction, and non-union of fracture. These pathological changes were successfully prevented by the dual delivery of DNase I and vancomycin. Our findings provide a promising strategy for FRI in osteoporotic bone.
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Affiliation(s)
- Jie Li
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | | | - Yik Lok Chung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Simon Kwoon Ho Chow
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Volker Alt
- Department of Trauma Surgery, University Hospital Regensburg, Germany
| | - Markus Rupp
- Department of Trauma Surgery, University Hospital Regensburg, Germany
| | | | - Chun Sing Chui
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Margaret Ip
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wing-Hoi Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ronald Man Yeung Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.
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Mostafa MM, Amin MM, Zakaria MY, Hussein MA, Shamaa MM, Abd El-Halim SM. Chitosan Surface-Modified PLGA Nanoparticles Loaded with Cranberry Powder Extract as a Potential Oral Delivery Platform for Targeting Colon Cancer Cells. Pharmaceutics 2023; 15:pharmaceutics15020606. [PMID: 36839928 PMCID: PMC9964659 DOI: 10.3390/pharmaceutics15020606] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
Nutraceutical cranberry powder extract (CBPE) has distinct polyphenols inhibiting colon cancer growth and proliferation. However, its oral therapeutic efficacy is hindered because of its low permeability. This study aims to formulate chitosan surface-modified PLGA nanoparticles (CS-PLGA NPs) for encapsulating CBPE and modulating its release rate, permeation, cell targeting, and, therefore, its cytotoxicity. A full 23 factorial design is employed to scrutinize the effect of lactide/glycolide ratio, PLGA weight, and stabilizer concentrations on entrapment efficiency percentage (EE%), particle size (PS), polydispersity index (PDI), and zeta potential (ZP). The optimum formula (F4) shows spherical particles with a relatively high EE% (72.30 ± 2.86%), an appropriate size of 370.10 ± 10.31 nm, PDI; 0.398 ± 0.001, and ZP; -5.40 ± 0.21 mV. Alongside the ATR-FTIR outcomes, the chitosan surface-modified formula (CS-F4) demonstrates a significant increase in particle size (417.67 ± 6.77 nm) and a shift from negative to positive zeta potential (+21.63 ± 2.46 mV), confirming the efficiency of surface modification with chitosan. The intestinal permeability of F4 and CS-F4 is significantly increased by 2.19- and 3.10-fold, respectively, compared to the CBPE solution, with the permeability coefficient (Papp) being 2.05 × 10-4 cm/min and 2.91 × 10-4 cm/min, for F4 and CS-F4, respectively, compared to the CBPE solution, 9.36 × 10-5 cm/min. Moreover, CS-F4 evidences significant caspase-3 protein level expression stimulation and significant inhibition of vascular endothelial growth factor (VEGF) and signal transducer and activator of transcription-3 (STAT-3) protein expression levels, confirming the superiority of CS-F4 for targeting HT-29 cells. Briefly, CS-PLGA NPs could be regarded as a prosperous delivery system of CBPE with enhanced permeation, cell targeting, and antitumor efficacy.
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Affiliation(s)
- Mona M. Mostafa
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6 University, 6th of October City, Giza 12585, Egypt
| | - Maha M. Amin
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
- Correspondence: (M.M.A.); (S.M.A.E.-H.); Tel.: +20-1221602540 (M.M.A.); +20-1119994874 (S.M.A.E.-H.)
| | - Mohamed Y. Zakaria
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Port Said University, Port Said 42526, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, King Salman International University, Ras Sudr 46612, South Sinai, Egypt
| | - Mohammed Abdalla Hussein
- Faculty of Applied Health Sciences Technology, October 6 University, 6th of October City, Giza 12585, Egypt
| | - Marium M. Shamaa
- Biochemistry Department, Clinical and Biological Sciences Division, College of Pharmacy, Arab Academy for Science, Technology and Maritime Transport, Alexandria 1029, Egypt
| | - Shady M. Abd El-Halim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6 University, 6th of October City, Giza 12585, Egypt
- Correspondence: (M.M.A.); (S.M.A.E.-H.); Tel.: +20-1221602540 (M.M.A.); +20-1119994874 (S.M.A.E.-H.)
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10
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Yadav N, Kumar U, Chauhan VS. Conformationally restricted, dipeptide-based, self-assembled nanoparticles for efficient vancomycin delivery. Nanomedicine (Lond) 2022; 17:2023-2035. [PMID: 36645108 DOI: 10.2217/nnm-2022-0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Aim: Emergence of vancomycin (Van) resistance, and usage of its higher dose and short half-life are posing a serious concern. Slow and sustained release of Van using a nanodelivery system may overcome these problems. Materials & methods: Arginine-α,β-dehydrophenylalanine (RΔF) was synthesized using solution-phase synthesis which self-assembled into nanospheres. Van was entrapped in the nanoparticles (NPs). In vitro and in vivo efficacy of Van-RΔF was determined using broth microdilution and the mouse thigh infection model, respectively. Results & conclusion: Van-RΔF NPs efficiently inhibited bacterial growth (Staphylococcus aureus), while Van alone showed limited growth inhibition in in vitro. Intravenous administration of Van-RΔF in mice with bacterial thigh infection showed enhanced efficacy (double) compared with Van alone, which indicates its high potential for further development.
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Affiliation(s)
- Nitin Yadav
- Molecular Medicine Group, International Centre for Genetic Engineering & Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
- Delhi Institute of Pharmaceutical Sciences & Research, Mehrauli-Badarpur Road, Sector-3, Pushpvihar, New Delhi, 110017, India
| | - Utkarsh Kumar
- Molecular Medicine Group, International Centre for Genetic Engineering & Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Virander Singh Chauhan
- Molecular Medicine Group, International Centre for Genetic Engineering & Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
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11
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García-Melero J, López-Mitjavila JJ, García-Celma MJ, Rodriguez-Abreu C, Grijalvo S. Rosmarinic Acid-Loaded Polymeric Nanoparticles Prepared by Low-Energy Nano-Emulsion Templating: Formulation, Biophysical Characterization, and In Vitro Studies. MATERIALS 2022; 15:ma15134572. [PMID: 35806696 PMCID: PMC9267406 DOI: 10.3390/ma15134572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/21/2022] [Accepted: 06/26/2022] [Indexed: 11/16/2022]
Abstract
Rosmarinic acid (RA), a caffeic acid derivative, has been loaded in polymeric nanoparticles made up of poly(lactic-co-glycolic acid) (PLGA) through a nano-emulsion templating process using the phase-inversion composition (PIC) method at room temperature. The obtained RA-loaded nanoparticles (NPs) were colloidally stable exhibiting average diameters in the range of 70–100 nm. RA was entrapped within the PLGA polymeric network with high encapsulation efficiencies and nanoparticles were able to release RA in a rate-controlled manner. A first-order equation model fitted our experimental data and confirmed the prevalence of diffusion mechanisms. Protein corona formation on the surface of NPs was assessed upon incubation with serum proteins. Protein adsorption induced an increase in the hydrodynamic diameter and a slight shift towards more negative surface charges of the NPs. The radical scavenging activity of RA-loaded NPs was also studied using the DPPH·assay and showed a dose–response relationship between the NPs concentration and DPPH inhibition. Finally, RA-loaded NPs did not affect the cellular proliferation of the human neuroblastoma SH-SY5Y cell line and promoted efficient cellular uptake. These results are promising for expanding the use of O/W nano-emulsions in biomedical applications.
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Affiliation(s)
- Jessica García-Melero
- Institute for Advanced Chemistry of Catalonia (CSIC-IQAC), Jordi Girona 18-26, E-08034 Barcelona, Spain; (J.G.-M.); (J.-J.L.-M.)
| | - Joan-Josep López-Mitjavila
- Institute for Advanced Chemistry of Catalonia (CSIC-IQAC), Jordi Girona 18-26, E-08034 Barcelona, Spain; (J.G.-M.); (J.-J.L.-M.)
| | - María José García-Celma
- Department of Pharmacy, Pharmaceutical Technology, and Physical-Chemistry, R+D Associated Unit to CSIC Pharmaceutical Nanotechnology, IN2UB, University of Barcelona, Joan XXIII 27-31, E-08028 Barcelona, Spain;
- Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - Carlos Rodriguez-Abreu
- Institute for Advanced Chemistry of Catalonia (CSIC-IQAC), Jordi Girona 18-26, E-08034 Barcelona, Spain; (J.G.-M.); (J.-J.L.-M.)
- Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Correspondence: (C.R.-A.); (S.G.)
| | - Santiago Grijalvo
- Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Correspondence: (C.R.-A.); (S.G.)
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12
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Beig A, Ackermann R, Wang Y, Schutzman R, Schwendeman SP. Minimizing the initial burst of octreotide acetate based long-acting microspheres by the solvent evaporation method. Int J Pharm 2022; 624:121842. [DOI: 10.1016/j.ijpharm.2022.121842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 11/24/2022]
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13
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Thanongsak W, Boongird A, Nasongkla N. Nanocoating and biological evaluation of clindamycin- and rifampicin-loaded nanospheres impregnated Silicone tube for antibacterial application. Pharm Dev Technol 2022; 27:372-378. [DOI: 10.1080/10837450.2022.2063890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Watunyu Thanongsak
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakorn Pathom, 73170, Thailand
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Mahidol University, Bangkok, 10400, Thailand
| | - Atthaporn Boongird
- Department of Surgery, Neurosurgical Unit, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Norased Nasongkla
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakorn Pathom, 73170, Thailand
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Mahidol University, Bangkok, 10400, Thailand
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Berini F, Orlandi V, Gornati R, Bernardini G, Marinelli F. Nanoantibiotics to fight multidrug resistant infections by Gram-positive bacteria: hope or reality? Biotechnol Adv 2022; 57:107948. [PMID: 35337933 DOI: 10.1016/j.biotechadv.2022.107948] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 12/17/2022]
Abstract
The spread of antimicrobial resistance in Gram-positive pathogens represents a threat to human health. To counteract the current lack of novel antibiotics, alternative antibacterial treatments have been increasingly investigated. This review covers the last decade's developments in using nanoparticles as carriers for the two classes of frontline antibiotics active on multidrug-resistant Gram-positive pathogens, i.e., glycopeptide antibiotics and daptomycin. Most of the reviewed papers deal with vancomycin nanoformulations, being teicoplanin- and daptomycin-carrying nanosystems much less investigated. Special attention is addressed to nanoantibiotics used for contrasting biofilm-associated infections. The status of the art related to nanoantibiotic toxicity is critically reviewed.
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Affiliation(s)
- Francesca Berini
- Department of Biotechnology and Life Sciences, University of Insubria, via JH Dunant 3, 21100 Varese, Italy.
| | - Viviana Orlandi
- Department of Biotechnology and Life Sciences, University of Insubria, via JH Dunant 3, 21100 Varese, Italy.
| | - Rosalba Gornati
- Department of Biotechnology and Life Sciences, University of Insubria, via JH Dunant 3, 21100 Varese, Italy.
| | - Giovanni Bernardini
- Department of Biotechnology and Life Sciences, University of Insubria, via JH Dunant 3, 21100 Varese, Italy.
| | - Flavia Marinelli
- Department of Biotechnology and Life Sciences, University of Insubria, via JH Dunant 3, 21100 Varese, Italy.
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15
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Puri V, Chaudhary KR, Singh A, Singh C. Inhalation potential of N-Acetylcysteine loaded PLGA nanoparticles for the management of tuberculosis: In vitro lung deposition and efficacy studies. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2022; 3:100084. [PMID: 35112077 PMCID: PMC8790477 DOI: 10.1016/j.crphar.2022.100084] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/06/2022] [Accepted: 01/12/2022] [Indexed: 12/28/2022] Open
Abstract
Several studies have stated that mucus is a critical hurdle for drug delivery to the mucosal tissues. As a result, Polymeric nanoparticles that can overcome mucus barriers are gaining popularity for controlled drug delivery into intra-macrophages to attain high intracellular drug concentration. The present study was aimed to fabricate inhalable N-acetylcysteine (NAC) modified PLGA mucus penetrating particles using the double emulsion method (w/o/w) for target delivery to alveolar macrophages and minimize the dose-related adverse effects, efficiently encapsulate hydrophilic drug, sustain the release profile and prolong the retention time for the management of tuberculosis. Among the numerous formulations, the drug/polymer ratio of 1:10 with 0.50% PVA concentration and sonication time for 2 min s was chosen for further research. The formulated nanoparticles had a mean particle size of 307.50 ± 9.54 nm, PDI was 0.136 ± 0.02, zeta potential about -11.3 ± 0.4 mV, decent entrapment efficiency (55.46 ± 2.40%), drug loading (9.05 ± 0.22%), and excellent flowability. FTIR confirmed that NAC and PLGA were compatible with each other. SEM graphs elucidated that the nanoparticles were spherically shaped with a slightly rough surface whereas TEM analysis ensured the nanometer size nanoparticles and coating of lipid over NPs surface. PXRD spectrum concluded the transformation of the drug from crystalline to amorphous state in the formulation. In vitro release pattern was biphasic started with burst release (64.67 ± 1.53% within 12hrs) followed by sustained release over 48hrs thus enabling the prolonged replenishing of NAC. In vitro lung deposition study pronounced that coated NAC-PLGA-MPPs showed favorable results in terms of emitted dose (86.67 ± 2.52%), MMAD value (2.57 ± 0.12 μm), GSD value (1.55 ± 0.11 μm), and FPF of 62.67 ± 2.08% for the deposition and targeting the lungs. Finally, in vitro efficacy studies demonstrated that NAC-PLGA-MPPs presented more prominent antibacterial activity against MTB H37Rv strain as compared to NAC. Hence, PLGA based particles could be a better strategy to deliver the NAC for lung targeting.
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Affiliation(s)
- Vishal Puri
- Department of Pharmaceutics, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
| | - Kabi Raj Chaudhary
- Department of Pharmaceutics, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
| | - Arti Singh
- Department of Pharmacology, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
| | - Charan Singh
- Department of Pharmaceutics, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
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16
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Faria J, Dionísio B, Soares Í, Baptista AC, Marques A, Gonçalves L, Bettencourt A, Baleizão C, Ferreira I. Cellulose acetate fibres loaded with daptomycin for metal implant coatings. Carbohydr Polym 2022; 276:118733. [PMID: 34823769 DOI: 10.1016/j.carbpol.2021.118733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 09/24/2021] [Accepted: 10/02/2021] [Indexed: 12/11/2022]
Abstract
Multifunctional polymeric coatings containing drug delivery vehicles can play a key role in preventing/reducing biofilm formation on implant surfaces. Their requirements are biocompatibility, good adhesion, and controllable drug release. Although cellulose acetate (CA) films and membranes are widely studied for scaffolding, their applications as a protective coating and drug delivery vehicle for metal implants are scarce. The reason is that adhesion to stainless steel (SS) substrates is non-trivial. Grinding SS substrates enhances the adhesion of dip-coated CA films while the adhesion of electrospun CA membranes is improved by an electrosprayed chitosan intermediate layer. PMMA microcapsules containing daptomycin have been successfully incorporated into CA films and fibres. The released drug concentration of 3 × 10-3 mg/mL after 120 min was confirmed from the peak luminescence intensity under UV radiation of simulated body fluid (SBF) after immersion of the fibres.
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Affiliation(s)
- Jaime Faria
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Campus de Caparica, Portugal
| | - Bruno Dionísio
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Campus de Caparica, Portugal
| | - Íris Soares
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Campus de Caparica, Portugal
| | - Ana Catarina Baptista
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Campus de Caparica, Portugal.
| | - Ana Marques
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Campus de Caparica, Portugal
| | - Lídia Gonçalves
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Ana Bettencourt
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Carlos Baleizão
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Isabel Ferreira
- CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Campus de Caparica, Portugal.
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17
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Abdelaziz MM, Hefnawy A, Anter A, Abdellatif MM, Khalil MAF, Khalil IA. Respirable spray dried vancomycin coated magnetic nanoparticles for localized lung delivery. Int J Pharm 2022; 611:121318. [PMID: 34838622 DOI: 10.1016/j.ijpharm.2021.121318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 01/28/2023]
Abstract
Bacterial pneumonia is a common pulmonary infection responsible for premature death. Biomaterials based-carriers loaded with antibiotics enhance drug potency through localizing the therapy, minimizing the associated adverse effects, and improving patient compliance. Herein, this study reports the preparation of an inhalable dry powder formulation composed of a nano-in-microparticles. Vancomycin was adsorbed on the core of magnetic nanoparticles followed by spray drying into lactose/dextran to optimize the aerodynamic performance and allow the local delivery of the drug into the bacterial pneumonia infection site. Lactose and Dextran are polysaccharides commonly used for pulmonary delivery due to their optimum aerodynamic performance and biocompatibility. The preparation of the nano-in-micro particles with optimum properties was confirmed using FTIR, TEM, SEM, Laser-diffraction, ICP-AES and TGA. The TEM micrographs confirmed the formation of spherical magnetic nanoparticles with a diameter 14.7 ± 5.9 nm and a coating thickness 3 - 16 nm, while laser diffraction showed that outer microparticles exhibited a mean diameter < 5 µm. The formulations demonstrated a promising activity against S. aureus and MRSA and better biocompatibility using MTT assay. In vivo safety and pharmacokinetic studies confirmed the localization of VAN in lung tissue and minimized adverse effects compared to free VAN. Therefore, the developed nano-in-microparticles confers a good potential for eradication of lung infections.
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Affiliation(s)
| | - Amr Hefnawy
- Smyth Lab, College of Pharmacy, University of Texas at Austin, TX 78712, USA
| | - Asem Anter
- Microbiology Unit, Drug Factory, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th of October, Giza 12566, Egypt
| | - Menna M Abdellatif
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
| | - Mahmoud A F Khalil
- Department of Microbiology and Immunology, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt
| | - Islam A Khalil
- Department of Pharmaceutics, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th of October, Giza 12582, Egypt.
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Compartmentalized Polymeric Nanoparticles Deliver Vancomycin in a pH-Responsive Manner. Pharmaceutics 2021; 13:pharmaceutics13121992. [PMID: 34959274 PMCID: PMC8709497 DOI: 10.3390/pharmaceutics13121992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/06/2021] [Accepted: 11/11/2021] [Indexed: 12/31/2022] Open
Abstract
Vancomycin (VCM) is a last resort antibiotic in the treatment of severe Gram-positive infections. However, its administration is limited by several drawbacks such as: strong pH-dependent charge, tendency to aggregate, low bioavailability, and poor cellular uptake. These drawbacks were circumvented by engineering pH-responsive nanoparticles (NPs) capable to incorporate high VCM payload and deliver it specifically at slightly acidic pH corresponding to infection sites. Taking advantage of peculiar physicochemical properties of VCM, here we show how to incorporate VCM efficiently in biodegradable NPs made of poly(lactic-co-glycolic acid) and polylactic acid (co)polymers. The NPs were prepared by a simple and reproducible method, establishing strong electrostatic interactions between VCM and the (co)polymers’ end groups. VCM payloads reached up to 25 wt%. The drug loading mechanism was investigated by solid state nuclear magnetic resonance spectroscopy. The engineered NPs were characterized by a set of advanced physicochemical methods, which allowed examining their morphology, internal structures, and chemical composition on an individual NP basis. The compartmentalized structure of NPs was evidenced by cryogenic transmission electronic microscopy, whereas the chemical composition of the NPs’ top layers and core was obtained by electron microscopies associated with energy-dispersive X-ray spectroscopy. Noteworthy, atomic force microscopy coupled to infrared spectroscopy allowed mapping the drug location and gave semiquantitative information about the loadings of individual NPs. In addition, the NPs were stable upon storage and did not release the incorporated drug at neutral pH. Interestingly, a slight acidification of the medium induced a rapid VCM release. The compartmentalized NPs could find potential applications for controlled VCM release at an infected site with local acidic pH.
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Malik S, Subramanian S, Hussain T, Nazir A, Ramakrishna S. Electrosprayed Nanoparticles as Drug Delivery systems for Biomedical Applications. Curr Pharm Des 2021; 28:368-379. [PMID: 34587881 DOI: 10.2174/1381612827666210929114621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/25/2021] [Accepted: 06/03/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Nanotechnology is a tool being used intensely in the area of drug delivery systems in the biomedical field. Electrospraying is one of the nanotechnological methods, which is growing due to its importance in the development of nanoparticles comprising bioactive compounds. It is helpful in improving the efficacy, reducing side effects of active drug elements, and is useful in targeted drug delivery. When compared to other conventional methods like nanoprecipitation, emulsion diffusion, and double emulsification, electrospraying offers better advantages to produce micro/nanoparticles due to its simplicity, cost-effectiveness, and single-step process. OBJECTIVE The aim of this paper is to highlight the use of electrosprayed nanoparticles for biomedical applications. METHODS We conducted a literature review on the usage of natural and synthetic materials to produce nanoparticles, which can be used as a drug delivery system for medical purposes. RESULTS We summarized a possible key role of electrosprayed nanoparticles in different therapeutic applications (tissue regeneration, cancer). CONCLUSION The modest literature production denotes that further investigation is needed to assess and validate the promising role of drug-loaded nanoparticles through the electrospraying process as noninvasive materials in the biomedical field.
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Affiliation(s)
- Sairish Malik
- Electrospun Materials & Polymeric Membranes Research Group (EMPMRG), National Textile University, Sheikhupura road, 37610, Faisalabad . Pakistan
| | - Sundarrajan Subramanian
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 . Singapore
| | - Tanveer Hussain
- Electrospun Materials & Polymeric Membranes Research Group (EMPMRG), National Textile University, Sheikhupura road, 37610, Faisalabad . Pakistan
| | - Ahsan Nazir
- Electrospun Materials & Polymeric Membranes Research Group (EMPMRG), National Textile University, Sheikhupura road, 37610, Faisalabad . Pakistan
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576 . Singapore
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Jaglal Y, Osman N, Omolo CA, Mocktar C, Devnarain N, Govender T. Formulation of pH-responsive lipid-polymer hybrid nanoparticles for co-delivery and enhancement of the antibacterial activity of vancomycin and 18β-glycyrrhetinic acid. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102607] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Pharmaceutical Formulations with P-Glycoprotein Inhibitory Effect as Promising Approaches for Enhancing Oral Drug Absorption and Bioavailability. Pharmaceutics 2021; 13:pharmaceutics13071103. [PMID: 34371794 PMCID: PMC8309061 DOI: 10.3390/pharmaceutics13071103] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 02/08/2023] Open
Abstract
P-glycoprotein (P-gp) is crucial in the active transport of various substrates with diverse structures out of cells, resulting in poor intestinal permeation and limited bioavailability following oral administration. P-gp inhibitors, including small molecule drugs, natural constituents, and pharmaceutically inert excipients, have been exploited to overcome P-gp efflux and enhance the oral absorption and bioavailability of many P-gp substrates. The co-administration of small molecule P-gp inhibitors with P-gp substrates can result in drug–drug interactions and increased side effects due to the pharmacological activity of these molecules. On the other hand, pharmaceutically inert excipients, including polymers, surfactants, and lipid-based excipients, are safe, pharmaceutically acceptable, and are not absorbed from the gut. Notably, they can be incorporated in pharmaceutical formulations to enhance drug solubility, absorption, and bioavailability due to the formulation itself and the P-gp inhibitory effects of the excipients. Different formulations with inherent P-gp inhibitory activity have been developed. These include micelles, emulsions, liposomes, solid lipid nanoparticles, polymeric nanoparticles, microspheres, dendrimers, and solid dispersions. They can bypass P-gp by different mechanisms related to their properties. In this review, we briefly introduce P-gp and P-gp inhibitors, and we extensively summarize the current development of oral drug delivery systems that can bypass and inhibit P-gp to improve the oral absorption and bioavailability of P-gp substrates. Since many drugs are limited by P-gp-mediated efflux, this review is helpful for designing suitable formulations of P-gp substrates to enhance their oral absorption and bioavailability.
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Wu D, Wei D, Du M, Ming S, Ding Q, Tan R. Targeting Antibacterial Effect and Promoting of Skin Wound Healing After Infected with Methicillin-Resistant Staphylococcus aureus for the Novel Polyvinyl Alcohol Nanoparticles. Int J Nanomedicine 2021; 16:4031-4044. [PMID: 34140770 PMCID: PMC8203101 DOI: 10.2147/ijn.s303529] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 04/28/2021] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Topical agents typically remain in the wound site for time duration that are too short to effectively eradicate MRSA tradition formation of BZK that can be maintained within the wound site for longer time periods, should be more effective. METHODS The novel chitosan and poly (D,L-lactide-co-glycoside) nanoparticles loaded with benzalkonium bromide (BZK) were designed, for the promotion wound healing after MRSA infection. The physical characterization of these nanoparticles, as well as their antibacterial activity in vitro, release profile in simulated wound fluid, cell toxicity, anti-biofilm activity, and their ability to improve the skin wound healing in a mouse model were also studied. RESULTS These novel nanoparticles were found to have a significant antibacterial activity (p<0.01), both in vitro and in vivo test. The stronger anti-biofilm ability of the nanoparticles to inhibit the formation of bacterial biofilms, at a concentration of 3.33 μg/mL, and clear existing bacterial biofilms, at a concentration of 5 mg/mL, compared with its water solution. In addition, significant damage to bacterial cell walls also was found, providing insight into the mechanism of antibacterial activity. CONCLUSION Taken together, these results demonstrated the ability of BZK-loaded nanoparticles in the promotion of skin wound healing with MRSA infection. The current findings open a new avenue for nanomedicine development and future clinical applications in the treatment of wounds.
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Affiliation(s)
- Dengyan Wu
- Department of Dermatology, Second affiliated Hospital, Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Dong Wei
- Plastic Surgery, Pengshui County People’s Hospital, Pengshui, 409600, People’s Republic of China
| | - Maotao Du
- Department of Dermatology, Second affiliated Hospital, Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Song Ming
- Department of Dermatology, Second affiliated Hospital, Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Qian Ding
- Department of Dermatology, Second affiliated Hospital, Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Ranjing Tan
- Department of Dermatology, Second affiliated Hospital, Chongqing Medical University, Chongqing, 400010, People’s Republic of China
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Bose RJC, Tharmalingam N, Choi Y, Madheswaran T, Paulmurugan R, McCarthy JR, Lee SH, Park H. Combating Intracellular Pathogens with Nanohybrid-Facilitated Antibiotic Delivery. Int J Nanomedicine 2020; 15:8437-8449. [PMID: 33162754 PMCID: PMC7642590 DOI: 10.2147/ijn.s271850] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/09/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Lipid polymer hybrid nanoparticles (LPHNPs) have been widely investigated in drug and gene delivery as well as in medical imaging. A knowledge of lipid-based surface engineering and its effects on how the physicochemical properties of LPHNPs affect the cell-nanoparticle interactions, and consequently how it influences the cytological response, is in high demand. METHODS Herein, we have engineered antibiotic-loaded (doxycycline or vancomycin) LPHNPs with cationic and zwitterionic lipids and examined the effects on their physicochemical characteristics (size and charge), antibiotic entrapment efficiency, and the in vitro intracellular bacterial killing efficiency against Mycobacterium smegmatis or Staphylococcus aureus infected macrophages. RESULTS The incorporation of cationic or zwitterionic lipids in the LPHNP formulation resulted in a size reduction in LPHNPs formulations and shifted the surface charge of bare NPs towards positive or neutral values. Also observed were influences on the drug incorporation efficiency and modulation of the drug release from the biodegradable polymeric core. The therapeutic efficacy of LPHNPs loaded with vancomycin was improved as its minimum inhibitory concentration (MIC) (2 µg/mL) versus free vancomycin (4 µg/mL). Importantly, our results show a direct relationship between the cationic surface nature of LPHNPs and its intracellular bacterial killing efficiency as the cationic doxycycline or vancomycin loaded LPHNPs reduced 4 or 3 log CFU respectively versus the untreated controls. CONCLUSION In our study, modulation of surface charge in the nanomaterial formulation increased macrophage uptake and intracellular bacterial killing efficiency of LPHNPs loaded with antibiotics, suggesting alternate way for optimizing their use in biomedical applications.
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Affiliation(s)
- Rajendran J C Bose
- School of Integrative Engineering, Chung-Ang University, Seoul, South Korea
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA94305-5427, USA
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Stanford, CA94305-5427, USA
- Masonic Medical Research Institute, Utica, NY, USA
| | - Nagendran Tharmalingam
- Infectious Diseases Division, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI02903, USA
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul, South Korea
| | - Thiagarajan Madheswaran
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Kuala Lumpur57000, Malaysia
| | - Ramasamy Paulmurugan
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, School of Medicine, Stanford University, Stanford, CA94305-5427, USA
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Stanford, CA94305-5427, USA
| | | | - Soo-Hong Lee
- Department of Medical Biotechnology, Dongguk University, Seoul, Gyeonggi-do, South Korea
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul, South Korea
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Simon A, Moreira MLA, Costa IFDJB, de Sousa VP, Rodrigues CR, da Rocha E Lima LMT, Sisnande T, do Carmo FA, Leal ICR, Dos Santos KRN, da Silva LCRP, Cabral LM. Vancomycin-loaded nanoparticles against vancomycin intermediate and methicillin resistant Staphylococcus aureus strains. NANOTECHNOLOGY 2020; 31:375101. [PMID: 32470951 DOI: 10.1088/1361-6528/ab97d7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Bacterial infections represent one of the leading causes of mortality in the world. Among causative pathogens, S. aureus is prominently known as the underlying cause of many multidrug resistant infections that are often treated with the first-line choice antibiotic vancomycin (VCM). Loading antibiotics into polymeric nanoparticles (Np) displays promise as an alternative method to deliver therapy due to the greater access and accumulation of the antibiotic at the site of the infection as well as reducing toxicity, irritation and degradation. The aim of this work was to prepare, characterize and evaluate VCM-loaded nanoparticles (VNp) for use against S. aureus strains. Moreover, conjugation of Nps with holo-transferrin (h-Tf) was investigated as an approach for improving targeted drug delivery. VNp were prepared by double emulsion solvent evaporation method using PLGA and PVA or DMAB as surfactants. The particles were characterized for size distribution, Zeta Potential, morphology by transmission electron microscopy, encapsulation yield and protein conjugation efficiency. Process yield and drug loading were also investigated along with an in vitro evaluation of VNp antimicrobial effects against S. aureus strains. Results showed that Np were spontaneously formed with a mean diameter lower than 300 nm in a narrow size distribution that presented a spherical shape. The bioconjugation with h-Tf did not appear to increase the antimicrobial effect of VNp. However, non-bioconjugated Np presented a minimal inhibitory concentration lower than free VCM against a MRSA (Methicillin-resistant S. aureus) strain, and slightly higher against a VISA (VCM intermediate S. aureus) strain. VNp without h-Tf showed potential to assist in the development of new therapies against S. aureus infections.
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Affiliation(s)
- Alice Simon
- Laboratório de Tecnologia Industrial Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro - UFRJ, CCS, Lss20, Ilha do Fundão, 21941-590, Rio de Janeiro, RJ, Brazil
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25
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Formulation technologies and advances for oral delivery of novel nitroimidazoles and antimicrobial peptides. J Control Release 2020; 324:728-749. [PMID: 32380201 DOI: 10.1016/j.jconrel.2020.05.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/01/2020] [Accepted: 05/02/2020] [Indexed: 02/06/2023]
Abstract
Antibiotic resistance has become a global crisis, driving the exploration for novel antibiotics and novel treatment approaches. Among these research efforts two classes of antibiotics, bicyclic nitroimidazoles and antimicrobial peptides, have recently shown promise as novel antimicrobial agents with the possibility to treat multi-drug resistant infections. However, they suffer from the issue of poor oral bioavailability due to disparate factors: low solubility in the case of nitroimidazoles (BCS class II drugs), and low permeability in the case of peptides (BCS class III drugs). Moreover, antimicrobial peptides present another challenge as they are susceptible to chemical and enzymatic degradation, which can present an additional pharmacokinetic hurdle for their oral bioavailability. Formulation technologies offer a potential means for improving the oral bioavailability of poorly permeable and poorly soluble drugs, but there are still drawbacks and limitations associated with this approach. This review discusses in depth the challenges associated with oral delivery of nitroimidazoles and antimicrobial peptides and the formulation technologies that have been used to overcome these problems, including an assessment of the drawbacks and limitations associated with the technologies that have been applied. Furthermore, the potential for supercritical fluid technology to overcome the shortcomings associated with conventional drug formulation methods is reviewed.
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26
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Ucak S, Sudagidan M, Borsa BA, Mansuroglu B, Ozalp VC. Inhibitory effects of aptamer targeted teicoplanin encapsulated PLGA nanoparticles for Staphylococcus aureus strains. World J Microbiol Biotechnol 2020; 36:69. [PMID: 32333113 DOI: 10.1007/s11274-020-02845-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 04/17/2020] [Indexed: 12/13/2022]
Abstract
Emergence of resistance to traditional antibiotic treatments necessitates alternative delivery systems. Teicoplanin is a glycopeptide antibiotic used in the treatments of serious infections caused by Gram-positive bacteria, including Methicillin Resistant Staphylococcus aureus (MRSA). One strategy to keep up with antibiotic resistance development is to limit dose and amount during treatments. Targeted delivery systems of antibiotics have been suggested as a mechanism to slow-down the evolution of resistance and to increase efficiency of the antimicrobials on already resistant pathogens. In this study, we report teicoplanin delivery nanoparticles of Poly Lactic-co-Glycolic Acid (PLGA), which are functionalized with S. aureus specific aptamers. A 32-fold decrease in minimum inhibitory concentration (MIC) values of teicoplanin for S. aureus was demonstrated for susceptible strains and about 64-fold decline in MIC value was achieved for moderately resistant clinical isolates of MRSA upon teicoplanin treatment with aptamer-PLGA nanoparticles. Although teicoplanin delivery in PLGA nanoparticles without targeting demonstrated eightfold decrease in MIC of susceptible strains of S. aureus and S. epidermidis and twofold in MIC of resistant strains, the aptamer targeting specifically decreased MIC for S. aureus, but not for S. epidermidis. Therefore, aptamer-targeted PLGA delivery of antibiotic can be an attractive alternative to combat with some of the multi-drug resistant bacterial pathogens.
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Affiliation(s)
- Samet Ucak
- Department of Molecular Biology and Genetics, Yildiz Technical University, Istanbul, Turkey.,School of Medicine, Altinbas University, Istanbul, Turkey
| | - Mert Sudagidan
- Kit-Argem Research Center, Konya Food and Agriculture University, 42080, Konya, Turkey
| | - Baris A Borsa
- Department of Chemistry, Physics and Biology (IFM), Linköping University, Linköping, Sweden
| | - Banu Mansuroglu
- Department of Molecular Biology and Genetics, Yildiz Technical University, Istanbul, Turkey
| | - Veli C Ozalp
- Medical School, Department of Medical Biology, Atilim University, 06830, Ankara, Turkey.
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27
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Ali A, Ovais M, Cui X, Rui Y, Chen C. Safety Assessment of Nanomaterials for Antimicrobial Applications. Chem Res Toxicol 2020; 33:1082-1109. [DOI: 10.1021/acs.chemrestox.9b00519] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Arbab Ali
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R. China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P.R. China
| | - Muhammad Ovais
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xuejing Cui
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P.R. China
| | - YuKui Rui
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R. China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
- GBA Research Innovation Institute for Nanotechnology, Guangdong 510700, China
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28
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Booysen E, Sadie-Van Gijsen H, Deane SM, Ferris W, Dicks LMT. The Effect of Vancomycin on the Viability and Osteogenic Potential of Bone-Derived Mesenchymal Stem Cells. Probiotics Antimicrob Proteins 2020; 11:1009-1014. [PMID: 30276719 DOI: 10.1007/s12602-018-9473-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Traditionally, methicillin-resistant Staphylococcus aureus (MRSA) is treated with vancomycin, administrated intravenously or applied directly onto infected tissue. The effect of direct (as opposed to systemic) vancomycin treatment on bone formation and remodelling is largely unknown. The minimal inhibitory concentration (MIC) of vancomycin was determined by adding 200 μL of different concentrations (1-20 μg/mL) to actively growing cultures of S. aureus Xen 31 (methicillin-resistant) and S. aureus Xen 36 (methicillin-sensitive), respectively, and recording changes in optical density over 24 h. Bone marrow-derived and proximal femur-derived mesenchymal stem cells (bmMSCs and pfMSCs) from rat femora were exposed to 1 × MIC (5 μg/mL) and 4 × MIC (20 μg/mL) of vancomycin for 7 days. Cell viability was determined by staining with crystal violet and MTT (3-(4,5- di methylthiazol-2-yl)-2,5-diphenyltetrazolium bromide), respectively, and osteogenic differentiation by staining with Alizarin Red S. Vancomycin had no effect on the viability of bmMSCs and pfMSCs, even at high levels (20 μg/mL). The osteogenic differentiation of pfMSCs was partially inhibited, while osteogenesis in bmMSCs was not severely affected. The direct application of vancomycin to infected bone tissue, even at excessive levels, may preserve the viability of resident MSC populations.
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Affiliation(s)
- Elzaan Booysen
- Department of Microbiology, Faculty of Natural Sciences, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa
| | - Hanél Sadie-Van Gijsen
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University Tygerberg Campus, Parow, South Africa.,Division of Medical Physiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University Tygerberg Campus, Parow, South Africa
| | - Shelly M Deane
- Department of Microbiology, Faculty of Natural Sciences, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa
| | - William Ferris
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University Tygerberg Campus, Parow, South Africa
| | - Leon M T Dicks
- Department of Microbiology, Faculty of Natural Sciences, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa.
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29
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Zou Z, Sun J, Li Q, Pu Y, Liu J, Sun R, Wang L, Jiang T. Vancomycin modified copper sulfide nanoparticles for photokilling of vancomycin-resistant enterococci bacteria. Colloids Surf B Biointerfaces 2020; 189:110875. [PMID: 32087532 DOI: 10.1016/j.colsurfb.2020.110875] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/13/2020] [Accepted: 02/12/2020] [Indexed: 10/25/2022]
Abstract
Due to the overuse of antibiotics, vancomycin resistant enterococci (VRE) has caused serious infections and become more and more difficult to deal with. Herein, we reported a facile one-pot strategy to synthesize copper sulfide nanoparticles using vancomycin (Van) as reductant and capping agent (CuS@Van). The as-prepared CuS@Van nanocomposites presented excellent uniformity in particle size and strong near infrared (NIR) absorbance. Fourier Transform infrared spectroscopy (FTIR) and Energy dispersive spectrometry (EDS) analysis confirmed the successful modification of Van molecules on the surface of CuS@Van nanoparticles. Bacterial TEM images verified the specific binding affinity between CuS@Van and VRE pathogen. CuS@Van also exhibited effective photokilling capability based on a combination of photothermal therapy (PTT) and photodynamic therapy (PDT). Fluorescent bacterial viability staining and bacterial growth curves monitoring were performed to explore the photokilling ablation of CuS@Van against VRE pathogens. The in vitro results indicated that CuS@Van nanocomposites had no antibacterial activity in the dark but displayed satisfying bactericidal effect against VRE pathogens upon the NIR irradiation. Mouse infection assays were also implemented to evaluate in vivo antibacterial photokilling effectiveness. CuS@Van with NIR irradiation showed the highest antibacterial capability and fastest infection regression compared with the control groups. Considering the low cost, easy preparation, good biocompatibility and excellent photokilling capability, CuS@Van nanocomposites will shed bright light on the photokilling ablation of vancomycin-resistant pathogenic bacteria.
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Affiliation(s)
- Zhonghao Zou
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Jie Sun
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Qing Li
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Yang Pu
- School of Agriculture, Ludong University, Yantai 264025, China
| | - Jiaqi Liu
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Ruiqi Sun
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Luyao Wang
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Tingting Jiang
- School of Life Sciences, Ludong University, Yantai 264025, China.
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30
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Perveen K, Masood F, Hameed A. Preparation, characterization and evaluation of antibacterial properties of epirubicin loaded PHB and PHBV nanoparticles. Int J Biol Macromol 2020; 144:259-266. [DOI: 10.1016/j.ijbiomac.2019.12.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/30/2019] [Accepted: 12/05/2019] [Indexed: 12/31/2022]
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31
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Graphene Oxide–Based Nanocomposite for Sustained Release of Cephalexin. J Pharm Sci 2020; 109:1130-1135. [DOI: 10.1016/j.xphs.2019.09.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/12/2019] [Accepted: 09/23/2019] [Indexed: 12/25/2022]
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32
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Hossin AY, Inafuku M, Oku H. Dihydropyranocoumarins Exerted Anti-Obesity Activity In Vivo and its Activity Was Enhanced by Nanoparticulation with Polylactic-Co-Glycolic Acid. Nutrients 2019; 11:nu11123053. [PMID: 31847296 PMCID: PMC6949991 DOI: 10.3390/nu11123053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/06/2019] [Accepted: 12/11/2019] [Indexed: 01/03/2023] Open
Abstract
Dihydropyranocoumarins (DPCs) were isolated from Peucedanum japonicum Thunb as anti-obesity compounds in 3T3-L1 adipocytes assay; however, it is uncertain whether DPC exerts anti-obesity activity in vivo. Therefore, this study evaluated the oral intake of pure DPCs in mice fed a high-fat diet, and also attempted to enhance its activity by nanoparticulation. Increases in body weight gain and fat accumulation in white adipose tissues were significantly suppressed by the dietary intake of DPCs (1.943 mg/mouse/day). DPCs intake also significantly decreased the mean size of adipocytes and upregulated mRNA levels of thermogenesis-related genes. Nanoparticulation of DPCs with polylactic-co-glycolic acid (PLGA) dramatically increased its activity almost 100-fold over that of a non-nanoparticulated form. Thus, our findings clearly demonstrated the anti-obesity activity of DPCs in vivo and suggested that PLGA nanoparticle encapsulation was useful to enhance the anti-obesity activity of DPCs with the aim to develop natural and safe anti-obesity agents.
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Affiliation(s)
- Abu Yousuf Hossin
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan; (A.Y.H.); (H.O.)
- Tropical Biosphere Research Center, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan
| | - Masashi Inafuku
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan; (A.Y.H.); (H.O.)
- Faculty of Agriculture, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan
- Correspondence: ; Tel.: +81-98-895-8978; Fax: +81-98895-8944
| | - Hirosuke Oku
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima 890-0065, Japan; (A.Y.H.); (H.O.)
- Tropical Biosphere Research Center, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan
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Horprasertkij K, Dwivedi A, Riansuwan K, Kiratisin P, Nasongkla N. Spray coating of dual antibiotic-loaded nanospheres on orthopedic implant for prolonged release and enhanced antibacterial activity. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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34
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Varshosaz J, Ghassami E, Noorbakhsh A, Minaiyan M, Jahanian-Najafabadi A. Trastuzumab-conjugated nanoparticles composed of poly(butylene adipate- co-butylene terephthalate) prepared by electrospraying technique for targeted delivery of docetaxel. IET Nanobiotechnol 2019; 13:829-833. [PMID: 31625523 PMCID: PMC8676484 DOI: 10.1049/iet-nbt.2018.5363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 03/29/2019] [Accepted: 04/23/2019] [Indexed: 11/19/2022] Open
Abstract
Human epidermal growth factor receptor 2 (HER-2) is overexpressed in 20-30% of human breast cancers, associated with poor prognosis and tumour aggression. The aim of this study was the production of trastuzumab-targeted Ecoflex nanoparticles (NPs) loaded with docetaxel and in vitro evaluation of their cytotoxicity and cellular uptake. The NPs were manufactured by electrospraying and characterised regarding size, zeta potential, drug loading, and release behaviour. Then their cytotoxicity was evaluated by MTT assay against an HER-2-positive cell line, BT-474, and an HER-2-negative cell line, MDA-MB-468. The cellular uptake was studied by flow cytometry and fluorescent microscope. The particle size of NPs was in an appropriate range, with relatively high drug entrapment and acceptable release efficiency. The results showed no cytotoxicity for the polymer, but the significant increment of cytotoxicity was observed by treatment with docetaxel-loaded NPs in both HER-2-positive and HER-2-negative cell lines, in comparison with the free drug. The trastuzumab-targeted NPs also significantly enhanced cytotoxicity against BT-474 cells, compared with non-targeted NPs.
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Affiliation(s)
- Jaleh Varshosaz
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Erfaneh Ghassami
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abdollah Noorbakhsh
- Department of Nanotechnology Engineering, Faculty of Advanced Sciences and Technology, University of Isfahan, Isfahan, Iran
| | - Mohsen Minaiyan
- Department of Pharmacology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Jahanian-Najafabadi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
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35
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Rat intestinal drug permeability: A status report and summary of repeated determinations. Eur J Pharm Biopharm 2019; 142:364-376. [DOI: 10.1016/j.ejpb.2019.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/28/2019] [Accepted: 07/04/2019] [Indexed: 12/28/2022]
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36
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Liu X, Oungeun P, Banlunara W, Leelahavanichkul A, Wanichwecharungruang S. Natural Thermoresponsive Rice Granules as Biocompatible Drug Carriers. ACS OMEGA 2019; 4:7911-7918. [PMID: 31459879 PMCID: PMC6649118 DOI: 10.1021/acsomega.9b00642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/18/2019] [Indexed: 05/05/2023]
Abstract
Through thermal gravimetric, X-ray diffraction, infrared spectroscopy, and scanning electron microscopic analyses, here we reveal that the 4-5 μm diameter pentagonal shaped rice granules are surprisingly stable against α-amylase, trypsin, lipase, diluted acids, and diluted bases. Some papain-sensitive proteins play an important role in the granular shape stabilization. We employ the reversible thermoresponsive expansion/shrinking character in aqueous medium of this biopolymeric pentagonal granular assembly to encapsulate the antibiotic vancomycin into the granule at the drug loading content of 80% drug mass with only 20% rice granule mass. The obtained drug-loaded granules display no-burst but steady sustained release of the water-soluble vancomycin in an aqueous environment for more than 24 h.
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Affiliation(s)
- Xue Liu
- Nanoscience
and Technology Program, Graduate School, Center of Excellence
on Petrochemical and Materials Technology, Nanotec-CU Center of Excellence on
Food and Agriculture, Department of Chemistry, Faculty of Science, Department of Pathology,
Faculty of Veterinary Science, Division of Immunology, Department of Microbiology,
Faculty of Medicine, and Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Pongpat Oungeun
- Nanoscience
and Technology Program, Graduate School, Center of Excellence
on Petrochemical and Materials Technology, Nanotec-CU Center of Excellence on
Food and Agriculture, Department of Chemistry, Faculty of Science, Department of Pathology,
Faculty of Veterinary Science, Division of Immunology, Department of Microbiology,
Faculty of Medicine, and Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Wijit Banlunara
- Nanoscience
and Technology Program, Graduate School, Center of Excellence
on Petrochemical and Materials Technology, Nanotec-CU Center of Excellence on
Food and Agriculture, Department of Chemistry, Faculty of Science, Department of Pathology,
Faculty of Veterinary Science, Division of Immunology, Department of Microbiology,
Faculty of Medicine, and Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Asada Leelahavanichkul
- Nanoscience
and Technology Program, Graduate School, Center of Excellence
on Petrochemical and Materials Technology, Nanotec-CU Center of Excellence on
Food and Agriculture, Department of Chemistry, Faculty of Science, Department of Pathology,
Faculty of Veterinary Science, Division of Immunology, Department of Microbiology,
Faculty of Medicine, and Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Supason Wanichwecharungruang
- Nanoscience
and Technology Program, Graduate School, Center of Excellence
on Petrochemical and Materials Technology, Nanotec-CU Center of Excellence on
Food and Agriculture, Department of Chemistry, Faculty of Science, Department of Pathology,
Faculty of Veterinary Science, Division of Immunology, Department of Microbiology,
Faculty of Medicine, and Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
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37
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Zaichik S, Steinbring C, Caliskan C, Bernkop-Schnürch A. Development and in vitro evaluation of a self-emulsifying drug delivery system (SEDDS) for oral vancomycin administration. Int J Pharm 2019; 554:125-133. [DOI: 10.1016/j.ijpharm.2018.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/09/2018] [Accepted: 11/03/2018] [Indexed: 01/06/2023]
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38
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Al-Obaidy SSM, Halbus AF, Greenway GM, Paunov VN. Boosting the antimicrobial action of vancomycin formulated in shellac nanoparticles of dual-surface functionality. J Mater Chem B 2019. [DOI: 10.1039/c8tb03102a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We demonstrate a strong enhancement of the antimicrobial action of vancomycin encapsulated in shellac nanocarriers with cationic surface functionality which concentrate on the microbial cell membranes.
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Affiliation(s)
- Saba S. M. Al-Obaidy
- Department of Chemistry and Biochemistry
- University of Hull
- Hull
- UK
- Department of Chemistry
| | - Ahmed F. Halbus
- Department of Chemistry and Biochemistry
- University of Hull
- Hull
- UK
- Department of Chemistry
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39
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Karp F, Busatto C, Turino L, Luna J, Estenoz D. PLGA nano- and microparticles for the controlled release of florfenicol: Experimental and theoretical study. J Appl Polym Sci 2018. [DOI: 10.1002/app.47248] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- F. Karp
- Instituto de Desarrollo Tecnológico para la Industria Química; INTEC (Universidad Nacional del Litoral and CONICET); Güemes 3450, Santa Fe 3000 Argentina
| | - C. Busatto
- Instituto de Desarrollo Tecnológico para la Industria Química; INTEC (Universidad Nacional del Litoral and CONICET); Güemes 3450, Santa Fe 3000 Argentina
| | - L. Turino
- Instituto de Desarrollo Tecnológico para la Industria Química; INTEC (Universidad Nacional del Litoral and CONICET); Güemes 3450, Santa Fe 3000 Argentina
| | - J. Luna
- Instituto de Desarrollo Tecnológico para la Industria Química; INTEC (Universidad Nacional del Litoral and CONICET); Güemes 3450, Santa Fe 3000 Argentina
| | - D. Estenoz
- Instituto de Desarrollo Tecnológico para la Industria Química; INTEC (Universidad Nacional del Litoral and CONICET); Güemes 3450, Santa Fe 3000 Argentina
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40
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Huang W, Tsui CP, Tang CY, Gu L. Effects of Compositional Tailoring on Drug Delivery Behaviours of Silica Xerogel/Polymer Core-shell Composite Nanoparticles. Sci Rep 2018; 8:13002. [PMID: 30158709 PMCID: PMC6115385 DOI: 10.1038/s41598-018-31070-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/10/2018] [Indexed: 12/27/2022] Open
Abstract
Conventional core-shell polymer nanoparticles usually exhibit a rapid release rate with their release kinetics mainly adjusted through changing composition of the polymer shells, limiting their applications for prolonged drug delivery. As a solution to these problems, silica xerogel/polymer core-shell-structured composite nanoparticles have been proposed. Different with our previous work centring on studying process variables, we here focused on investigating the effects of key compositional variables on essential properties of the composite nanoparticles. The drug release profiles (in vitro) were well interpreted by the Baker and Lonsdale model on a predicted two-stage basis. The first stage (<1 day) was well controlled from 18.6% to 45.9%; the second stage (1-14 days) was tailored in a range from 28.7 to 58.2% by changing the composition of the silica xerogel cores and polymeric shells. A substantial achievement was reducing the release rate by more than 40 times compared with that of conventional polymer nanoparticles by virtue of the silica xerogel cores. A semi-empirical model was also established in the first attempt to describe the effects of polymer concentration and drug loading capacity on the size of the composite nanoparticles. All these results indicated that the composite nanoparticles are promising candidates for prolonged drug delivery applications.
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Affiliation(s)
- Wenfei Huang
- Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Chi Pong Tsui
- Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
| | - Chak Yin Tang
- Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Linxia Gu
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588-0656, USA
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41
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Booysen E, Bezuidenhout M, van Staden ADP, Dimitrov D, Deane SM, Dicks LMT. Antibacterial Activity of Vancomycin Encapsulated in Poly(DL-lactide-co-glycolide) Nanoparticles Using Electrospraying. Probiotics Antimicrob Proteins 2018; 11:310-316. [PMID: 29961212 DOI: 10.1007/s12602-018-9437-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Vancomycin is often used to treat infections caused by β-lactam-resistant bacteria. However, methicillin-resistant strains of Staphylococcus aureus (MRSA) acquired resistance to vancomycin, rendering it less effective in the treatment of serious infections. In the search for novel antibiotics, alternative delivery mechanisms have also been explored. In this study, we report on the encapsulation of vancomycin in PLGA [poly(DL-lactide-co-glycolide)] nanoparticles by electrospraying. The nanoparticles were on average 247 nm in size with small bead formations on the surface. Clusters of various sizes were visible under the SEM (scanning electron microscope). Vancomycin encapsulated in PLGA (VNP) was more effective in inhibiting the growth of S. aureus Xen 31 (MRSA) and S. aureus Xen 36 than un-encapsulated vancomycin. Encapsulated vancomycin had a minimum inhibitory concentration (MIC) of 1 μg/mL against MRSA compared to 5 μg/mL of free vancomycin. At least 70% (w/w) of the vancomycin was encapsulated. Thirty percent of the vancomycin was released within the first 144 h, followed by slow release over 10 days. Vancomycin encapsulated in PLGA nanoparticles may be used to treat serious infections.
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Affiliation(s)
- Elzaan Booysen
- Department of Microbiology, Faculty of Natural Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Martin Bezuidenhout
- Department of Industrial Engineering, Faculty of Engineering, Stellenbosch University, Stellenbosch, South Africa
| | - Anton Du Preez van Staden
- Department of Physiological Science, Faculty of Natural Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Dimiter Dimitrov
- Department of Industrial Engineering, Faculty of Engineering, Stellenbosch University, Stellenbosch, South Africa
| | - Shelly M Deane
- Department of Microbiology, Faculty of Natural Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Leon M T Dicks
- Department of Microbiology, Faculty of Natural Sciences, Stellenbosch University, Stellenbosch, South Africa.
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42
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Alarçin E, Lee TY, Karuthedom S, Mohammadi M, Brennan MA, Lee DH, Marrella A, Zhang J, Syla D, Zhang YS, Khademhosseini A, Jang HL. Injectable shear-thinning hydrogels for delivering osteogenic and angiogenic cells and growth factors. Biomater Sci 2018; 6:1604-1615. [PMID: 29736522 PMCID: PMC6016025 DOI: 10.1039/c8bm00293b] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bone nonunion may occur when the fracture is unstable, or blood supply is impeded. To provide an effective treatment for the healing of nonunion defects, we introduce an injectable osteogenic hydrogel that can deliver cells and vasculogenic growth factors. We used a silicate-based shear-thinning hydrogel (STH) to engineer an injectable scaffold and incorporated polycaprolactone (PCL) nanoparticles that entrap and release vasculogenic growth factors in a controlled manner. By adjusting the solid composition of gelatin and silicate nanoplatelets in the STH, we defined optimal conditions that enable injection of STHs, which can deliver cells and growth factors. Different types of STHs could be simultaneously injected into 3D constructs through a single extrusion head composed of multiple syringes and needles, while maintaining their engineered structure in a continuous manner. The injected STHs were also capable of filling any irregularly shaped defects in bone. Osteogenic cells and endothelial cells were encapsulated in STHs with and without vasculogenic growth factors, respectively, and when co-cultured, their growth and differentiation were significantly enhanced compared to cells grown in monoculture. This study introduces an initial step of developing a new platform of shape-tunable materials with controlled release of angiogenic growth factors by utilizing PCL nanoparticles.
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Affiliation(s)
- Emine Alarçin
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham & Women's Hospital, Cambridge, MA 02139, USA.
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43
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Turino LN, Stella B, Dosio F, Luna JA, Barresi AA. Nanoparticles obtained by confined impinging jet mixer: poly(lactide-co-glycolide) vs. Poly-ε-caprolactone. Drug Dev Ind Pharm 2018; 44:934-941. [DOI: 10.1080/03639045.2017.1421662] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ludmila N. Turino
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Torino, Italy
- Laboratorio de Química Fina. Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Barbara Stella
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, Torino, Italy
| | - Franco Dosio
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, Torino, Italy
| | - Julio A. Luna
- Laboratorio de Química Fina. Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Antonello A. Barresi
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Torino, Italy
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44
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A therapeutic polyelectrolyte–vitamin C nanoparticulate system in polyvinyl alcohol–alginate hydrogel: An approach to treat skin and soft tissue infections caused by Staphylococcus aureus. Colloids Surf B Biointerfaces 2017; 160:315-324. [DOI: 10.1016/j.colsurfb.2017.09.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/05/2017] [Accepted: 09/11/2017] [Indexed: 11/17/2022]
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45
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Affiliation(s)
- Kıvılcım Öztürk-Atar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Hakan Eroğlu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Sema Çalış
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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46
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Development of long-circulating docetaxel loaded poly (3-hydroxybutyrate-co-3-hydroxyvalerate) nanoparticles: Optimization, pharmacokinetic, cytotoxicity and in vivo assessments. Int J Biol Macromol 2017; 103:791-801. [DOI: 10.1016/j.ijbiomac.2017.05.125] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 05/19/2017] [Indexed: 12/31/2022]
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47
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Paulo F, Santos L. Design of experiments for microencapsulation applications: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:1327-1340. [PMID: 28532010 DOI: 10.1016/j.msec.2017.03.219] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/07/2017] [Accepted: 03/23/2017] [Indexed: 02/07/2023]
Abstract
Microencapsulation techniques have been intensively explored by many research sectors such as pharmaceutical and food industries. Microencapsulation allows to protect the active ingredient from the external environment, mask undesired flavours, a possible controlled release of compounds among others. The purpose of this review is to provide a background of design of experiments in microencapsulation research context. Optimization processes are required for an accurate research in these fields and therefore, the right implementation of micro-sized techniques at industrial scale. This article critically reviews the use of the response surface methodologies in pharmaceutical and food microencapsulation research areas. A survey of optimization procedures in the literature, in the last few years is also presented.
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Affiliation(s)
- Filipa Paulo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Lúcia Santos
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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48
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Studying the influence of formulation and process variables on Vancomycin-loaded polymeric nanoparticles as potential carrier for enhanced ophthalmic delivery. Eur J Pharm Sci 2017; 100:142-154. [DOI: 10.1016/j.ejps.2017.01.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/21/2016] [Accepted: 01/12/2017] [Indexed: 11/18/2022]
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49
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Garg A, Bhalala K, Tomar DS, Wahajuddin. In-situ single pass intestinal permeability and pharmacokinetic study of developed Lumefantrine loaded solid lipid nanoparticles. Int J Pharm 2017; 516:120-130. [DOI: 10.1016/j.ijpharm.2016.10.064] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/25/2016] [Accepted: 10/27/2016] [Indexed: 11/27/2022]
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50
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Bohrey S, Chourasiya V, Pandey A. Preparation, optimization by 23 factorial design, characterization and in vitro release kinetics of lorazepam loaded PLGA nanoparticles. POLYMER SCIENCE SERIES A 2016. [DOI: 10.1134/s0965545x1606002x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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