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Ganesh VS, Venkatesh KV, Sihivahanan D, Yadalam PK, Shrivastava D, Srivastava KC. Effect of microbubble as local drug delivery system in endodontic management - An In-Vitro study. Saudi Dent J 2024; 36:863-867. [PMID: 38883906 PMCID: PMC11178962 DOI: 10.1016/j.sdentj.2024.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 03/11/2024] [Accepted: 03/17/2024] [Indexed: 06/18/2024] Open
Abstract
Background and Objectives Microbubbles (MBs) are gas or vapor-filled cavities inside liquids with sizes ranging from 2 to 3 µm. Recently, MBs have shown great promise in nanomedicine owing to their high encapsulation efficiency, targeted drug release, improved biocompatibility, and longer blood circulation. Furthermore, they are more suitable for focusing on particular body regions and are safer and non-invasive. MBs generators are used to create bubbles in fluid dynamics, chemistry, medicine, agriculture, and the environment. Drug delivery using MBs increases penetration without causing systemic toxicity. In this study, we examined whether the use of microbubbles as a local drug-delivery mechanism increases tubular penetration of endodontic medications and irrigant. Materials and Methods An Enterococcus faecalis culture was added to 38 dentin cylinders of single-rooted teeth. Samples were divided into the experimental and control groups that received a triple antibiotic paste with and without MB infusion (n = 19 in each group), respectively. After 14 days, the number of live bacteria in the samples was determined using confocal laser scanning microscopy. Results After 14 days of contact with the medication, the percentages of live and dead bacteria were assessed. Results show that Group 2 (Triple antibiotic infused micro bubble) showed significantly (P < 0.05) higher antibacterial efficacy than Group 1 (TAP). Conclusion In this study, the antibacterial efficacy was significantly higher in the experimental group than in the control group. Therefore, within the limitations of the study it can be said that MB infusion is a viable technique to improve root canal disinfection. Hence, it can be considered as a novel technique for local drug delivery systems in endodontic management.
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Affiliation(s)
- V Shyam Ganesh
- Department of Conservative Dentistry and Endodontics, SRM Kattankulathur Dental College and Hospital, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - K Vijay Venkatesh
- Department of Conservative Dentistry and Endodontics, SRM Kattankulathur Dental College and Hospital, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - D Sihivahanan
- Department of Conservative Dentistry and Endodontics, SRM Kattankulathur Dental College and Hospital, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Pradeep Kumar Yadalam
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Deepti Shrivastava
- Department of Preventive Dentistry, College of Dentistry, Jouf University, Sakaka, Saudi Arabia
| | - Kumar Chandan Srivastava
- Department of Oral & Maxillofacial Surgery & Diagnostic Sciences, College of Dentistry, Jouf University, Sakaka, Saudi Arabia
- Department of Oral Medicine and Radiology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602105, India
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2
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Gopikrishnan M, Haryini S, C GPD. Emerging strategies and therapeutic innovations for combating drug resistance in Staphylococcus aureus strains: A comprehensive review. J Basic Microbiol 2024; 64:e2300579. [PMID: 38308076 DOI: 10.1002/jobm.202300579] [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: 10/03/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 02/04/2024]
Abstract
In recent years, antibiotic therapy has encountered significant challenges due to the rapid emergence of multidrug resistance among bacteria responsible for life-threatening illnesses, creating uncertainty about the future management of infectious diseases. The escalation of antimicrobial resistance in the post-COVID era compared to the pre-COVID era has raised global concern. The prevalence of nosocomial-related infections, especially outbreaks of drug-resistant strains of Staphylococcus aureus, have been reported worldwide, with India being a notable hotspot for such occurrences. Various virulence factors and mutations characterize nosocomial infections involving S. aureus. The lack of proper alternative treatments leading to increased drug resistance emphasizes the need to investigate and examine recent research to combat future pandemics. In the current genomics era, the application of advanced technologies such as next-generation sequencing (NGS), machine learning (ML), and quantum computing (QC) for genomic analysis and resistance prediction has significantly increased the pace of diagnosing drug-resistant pathogens and insights into genetic intricacies. Despite prompt diagnosis, the elimination of drug-resistant infections remains unattainable in the absence of effective alternative therapies. Researchers are exploring various alternative therapeutic approaches, including phage therapy, antimicrobial peptides, photodynamic therapy, vaccines, host-directed therapies, and more. The proposed review mainly focuses on the resistance journey of S. aureus over the past decade, detailing its resistance mechanisms, prevalence in the subcontinent, innovations in rapid diagnosis of the drug-resistant strains, including the applicants of NGS and ML application along with QC, it helps to design alternative novel therapeutics approaches against S. aureus infection.
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Affiliation(s)
- Mohanraj Gopikrishnan
- Department of Integrative Biology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
| | - Sree Haryini
- Department of Biomedical Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
| | - George Priya Doss C
- Department of Integrative Biology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
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3
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Ficiarà E, Stura I, Vernone A, Silvagno F, Cavalli R, Guiot C. Iron Overload in Brain: Transport Mismatches, Microbleeding Events, and How Nanochelating Therapies May Counteract Their Effects. Int J Mol Sci 2024; 25:2337. [PMID: 38397013 PMCID: PMC10889007 DOI: 10.3390/ijms25042337] [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: 01/11/2024] [Revised: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Iron overload in many brain regions is a common feature of aging and most neurodegenerative diseases. In this review, the causes, mechanisms, mathematical models, and possible therapies are summarized. Indeed, physiological and pathological conditions can be investigated using compartmental models mimicking iron trafficking across the blood-brain barrier and the Cerebrospinal Fluid-Brain exchange membranes located in the choroid plexus. In silico models can investigate the alteration of iron homeostasis and simulate iron concentration in the brain environment, as well as the effects of intracerebral iron chelation, determining potential doses and timing to recover the physiological state. Novel formulations of non-toxic nanovectors with chelating capacity are already tested in organotypic brain models and could be available to move from in silico to in vivo experiments.
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Affiliation(s)
- Eleonora Ficiarà
- School of Pharmacy, University of Camerino, 62032 Camerino, MC, Italy;
| | - Ilaria Stura
- Department of Neurosciences, Università degli Studi di Torino, 10125 Torino, TO, Italy; (A.V.); (C.G.)
| | - Annamaria Vernone
- Department of Neurosciences, Università degli Studi di Torino, 10125 Torino, TO, Italy; (A.V.); (C.G.)
| | - Francesca Silvagno
- Department of Oncology, Università degli Studi di Torino, 10126 Torino, TO, Italy;
| | - Roberta Cavalli
- Department of Drug Science and Technology, Università degli Studi di Torino, 10125 Torino, TO, Italy;
| | - Caterina Guiot
- Department of Neurosciences, Università degli Studi di Torino, 10125 Torino, TO, Italy; (A.V.); (C.G.)
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4
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Cela EM, Urquiza D, Gómez MI, Gonzalez CD. New Weapons to Fight against Staphylococcus aureus Skin Infections. Antibiotics (Basel) 2023; 12:1477. [PMID: 37887178 PMCID: PMC10603739 DOI: 10.3390/antibiotics12101477] [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] [Received: 08/24/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/28/2023] Open
Abstract
The treatment of Staphylococcus aureus skin and soft tissue infections faces several challenges, such as the increased incidence of antibiotic-resistant strains and the fact that the antibiotics available to treat methicillin-resistant S. aureus present low bioavailability, are not easily metabolized, and cause severe secondary effects. Moreover, besides the susceptibility pattern of the S. aureus isolates detected in vitro, during patient treatment, the antibiotics may never encounter the bacteria because S. aureus hides within biofilms or inside eukaryotic cells. In addition, vascular compromise as well as other comorbidities of the patient may impede proper arrival to the skin when the antibiotic is given parenterally. In this manuscript, we revise some of the more promising strategies to improve antibiotic sensitivity, bioavailability, and delivery, including the combination of antibiotics with bactericidal nanomaterials, chemical inhibitors, antisense oligonucleotides, and lytic enzymes, among others. In addition, alternative non-antibiotic-based experimental therapies, including the delivery of antimicrobial peptides, bioactive glass nanoparticles or nanocrystalline cellulose, phototherapies, and hyperthermia, are also reviewed.
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Affiliation(s)
- Eliana M. Cela
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina; (E.M.C.); (D.U.); (M.I.G.)
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires C1113AAD, Argentina
| | - Dolores Urquiza
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina; (E.M.C.); (D.U.); (M.I.G.)
- Centro de Estudios Biomédicos, Básicos, Aplicados y Desarrollo (CEBBAD), Departamento de Investigaciones Biomédicas y Biotecnológicas, Universidad Maimónides, Buenos Aires C1405BCK, Argentina
| | - Marisa I. Gómez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina; (E.M.C.); (D.U.); (M.I.G.)
- Centro de Estudios Biomédicos, Básicos, Aplicados y Desarrollo (CEBBAD), Departamento de Investigaciones Biomédicas y Biotecnológicas, Universidad Maimónides, Buenos Aires C1405BCK, Argentina
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires C1121ABG, Argentina
| | - Cintia D. Gonzalez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina; (E.M.C.); (D.U.); (M.I.G.)
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires C1113AAD, Argentina
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Baroni S, Argenziano M, La Cava F, Soster M, Garello F, Lembo D, Cavalli R, Terreno E. Hard-Shelled Glycol Chitosan Nanoparticles for Dual MRI/US Detection of Drug Delivery/Release: A Proof-of-Concept Study. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2227. [PMID: 37570545 PMCID: PMC10420971 DOI: 10.3390/nano13152227] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023]
Abstract
This paper describes a novel nanoformulation for dual MRI/US in vivo monitoring of drug delivery/release. The nanosystem was made of a perfluoropentane core coated with phospholipids stabilized by glycol chitosan crosslinked with triphosphate ions, and it was co-loaded with the prodrug prednisolone phosphate (PLP) and the structurally similar MRI agent Gd-DTPAMA-CHOL. Importantly, the in vitro release of PLP and Gd-DTPAMA-CHOL from the nanocarrier showed similar profiles, validating the potential impact of the MRI agent as an imaging reporter for the drug release. On the other hand, the nanobubbles were also detectable by US imaging both in vitro and in vivo. Therefore, the temporal evolution of both MRI and US contrast after the administration of the proposed nanosystem could report on the delivery and the release kinetics of the transported drug in a given lesion.
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Affiliation(s)
- Simona Baroni
- Molecular and Preclinical Imaging Centers, Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126 Torino, Italy; (S.B.); (F.L.C.); (F.G.)
| | - Monica Argenziano
- Department of Drug Science and Technology, University of Torino, Via P. Giuria 9, 10125 Torino, Italy; (M.A.); (M.S.)
| | - Francesca La Cava
- Molecular and Preclinical Imaging Centers, Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126 Torino, Italy; (S.B.); (F.L.C.); (F.G.)
| | - Marco Soster
- Department of Drug Science and Technology, University of Torino, Via P. Giuria 9, 10125 Torino, Italy; (M.A.); (M.S.)
| | - Francesca Garello
- Molecular and Preclinical Imaging Centers, Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126 Torino, Italy; (S.B.); (F.L.C.); (F.G.)
| | - David Lembo
- Department of Clinical and Biological Sciences, University of Torino, S. Luigi Gonzaga Hospital, Regione Gonzole, 10, 10043 Orbassano, Italy;
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Torino, Via P. Giuria 9, 10125 Torino, Italy; (M.A.); (M.S.)
| | - Enzo Terreno
- Molecular and Preclinical Imaging Centers, Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126 Torino, Italy; (S.B.); (F.L.C.); (F.G.)
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Karnam S, Jindal AB, Agnihotri C, Singh BP, Paul AT. Topical Nanotherapeutics for Treating MRSA-Associated Skin and Soft Tissue Infection (SSTIs). AAPS PharmSciTech 2023; 24:108. [PMID: 37100956 DOI: 10.1208/s12249-023-02563-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 04/02/2023] [Indexed: 04/28/2023] Open
Abstract
The emergence of methicillin-resistant Staphylococcus aureus (MRSA) imposes a major challenge for the treatment of infectious diseases with existing antibiotics. MRSA associated with superficial skin and soft tissue infections (SSTIs) is one of them, affecting the skin's superficial layers, and it includes impetigo, folliculitis, cellulitis, furuncles, abscesses, surgical site infections, etc. The efficient care of superficial SSTIs caused by MRSA necessitates local administration of antibiotics, because oral antibiotics does not produce the required concentration at the local site. The topical administration of nanocarriers has been emerging in the area of drug delivery due to its advantages over conventional topical formulation. It enhances the solubility and permeation of the antibiotics into deeper layer of the skin. Apart from this, antibiotic resistance is something that needs to be combated on multiple fronts, and antibiotics encapsulated in nanocarriers help to do so by increasing the therapeutic efficacy in a number of different ways. The current review provides an overview of the resistance mechanism in S. aureus as well as various nanocarriers reported for the effective management of MRSA-associated superficial SSTIs.
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Affiliation(s)
- Sriravali Karnam
- Department of Pharmacy, Birla Institute of Technology and Sciences Pilani (BITS-Pilani), Pilani Campus, Vidyavihar, Pilani, 333031, Rajasthan, India
| | - Anil B Jindal
- Department of Pharmacy, Birla Institute of Technology and Sciences Pilani (BITS-Pilani), Pilani Campus, Vidyavihar, Pilani, 333031, Rajasthan, India
| | - Charu Agnihotri
- Department of Agriculture & Environmental Sciences (AES), Technology Entrepreneurship & Management (NIFTEM), National Institute of Food, Sonipat, 131028, Haryana, India
| | - Bhim Pratap Singh
- Department of Agriculture & Environmental Sciences (AES), Technology Entrepreneurship & Management (NIFTEM), National Institute of Food, Sonipat, 131028, Haryana, India.
| | - Atish T Paul
- Department of Pharmacy, Birla Institute of Technology and Sciences Pilani (BITS-Pilani), Pilani Campus, Vidyavihar, Pilani, 333031, Rajasthan, India.
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Mandras N, Luganini A, Argenziano M, Roana J, Giribaldi G, Tullio V, Cavallo L, Prato M, Cavalli R, Cuffini AM, Allizond V, Banche G. Design, Characterization, and Biological Activities of Erythromycin-Loaded Nanodroplets to Counteract Infected Chronic Wounds Due to Streptococcus pyogenes. Int J Mol Sci 2023; 24:ijms24031865. [PMID: 36768189 PMCID: PMC9915227 DOI: 10.3390/ijms24031865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023] Open
Abstract
Streptococcus pyogenes causes a wide spectrum of diseases varying from mild to life threatening, despite antibiotic treatment. Nanoparticle application could facilitate the foreign pathogen fight by increasing the antimicrobial effectiveness and reducing their adverse effects. Here, we designed and produced erythromycin-loaded chitosan nanodroplets (Ery-NDs), both oxygen-free and oxygen-loaded. All ND formulations were characterized for physico-chemical parameters, drug release kinetics, and tested for biocompatibility with human keratinocytes and for their antibacterial properties or interactions with S. pyogenes. All tested NDs possessed spherical shape, small average diameter, and positive Z potential. A prolonged Ery release kinetic from Ery-NDs was demonstrated, as well as a favorable biocompatibility on human keratinocytes. Confocal microscopy images showed ND uptake and internalization by S. pyogenes starting from 3 h of incubation up to 24 h. According to cell counts, NDs displayed long-term antimicrobial efficacy against streptococci significantly counteracting their proliferation up to 24 h, thanks to the known chitosan antimicrobial properties. Intriguingly, Ery-NDs were generally more effective (104-103 log10 CFU/mL), than free-erythromycin (105 log10 CFU/mL), in the direct killing of streptococci, probably due to Ery-NDs adsorption by bacteria and prolonged release kinetics of erythromycin inside S. pyogenes cells. Based on these findings, NDs and proper Ery-NDs appear to be the most promising and skin-friendly approaches for the topical treatment of streptococcal skin infections allowing wound healing during hypoxia.
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Affiliation(s)
- Narcisa Mandras
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
| | - Anna Luganini
- Department of Life Sciences and Systems Biology, University of Torino, 10126 Turin, Italy
| | - Monica Argenziano
- Department of Drug Science and Technology, University of Torino, 10126 Turin, Italy
- Correspondence: (M.A.); (V.A.); Tel.: +39-011-670-7163 (M.A.); +39-011-670-5644 (V.A.)
| | - Janira Roana
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
| | | | - Vivian Tullio
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
| | - Lorenza Cavallo
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
| | - Mauro Prato
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Torino, 10126 Turin, Italy
| | - Anna Maria Cuffini
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
| | - Valeria Allizond
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
- Correspondence: (M.A.); (V.A.); Tel.: +39-011-670-7163 (M.A.); +39-011-670-5644 (V.A.)
| | - Giuliana Banche
- Department of Public Health and Pediatric Sciences, University of Torino, 10126 Turin, Italy
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Regulation of Staphylococcus aureus Virulence and Application of Nanotherapeutics to Eradicate S. aureus Infection. Pharmaceutics 2023; 15:pharmaceutics15020310. [PMID: 36839634 PMCID: PMC9960757 DOI: 10.3390/pharmaceutics15020310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Staphylococcus aureus is a versatile pathogen known to cause hospital- and community-acquired, foodborne, and zoonotic infections. The clinical infections by S. aureus cause an increase in morbidity and mortality rates and treatment costs, aggravated by the emergence of drug-resistant strains. As a multi-faceted pathogen, it is imperative to consolidate the knowledge on its pathogenesis, including the mechanisms of virulence regulation, development of antimicrobial resistance, and biofilm formation, to make it amenable to different treatment strategies. Nanomaterials provide a suitable platform to address this challenge, with the potential to control intracellular parasitism and multidrug resistance where conventional therapies show limited efficacy. In a nutshell, the first part of this review focuses on the impact of S. aureus on human health and the role of virulence factors and biofilms during pathogenesis. The second part discusses the large diversity of nanoparticles and their applications in controlling S. aureus infections, including combination with antibiotics and phytochemicals and the incorporation of antimicrobial coatings for biomaterials. Finally, the limitations and prospects using nanomaterials are highlighted, aiming to foster the development of novel nanotechnology-driven therapies against multidrug-resistant S. aureus.
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Abstract
Nanobubbles are nanoscopic gaseous domains than can exist on solid surfaces or in bulk liquids. They have attracted significant attention in the last decade due to their long-time (meta)stability and ready potential for real-world applications, especially in environmental engineering and more sustainable ecosystems, water treatment, irrigation, and crop growth. After reviewing important nano-bubble science and activity, with some of the latest promising results in agriculture, we point out important directions in applications of nano-bubble phenomena for boosting sustainability, with viewpoints on how to revolutionise best-practice environmental and green sustainability, taking into account economic drivers and impacts. More specifically, it is pointed out how nanobubbles may be used as delivery vehicles, or “nano-carriers”, for nutrients or other agents to specific targets in a variety of ecosystems of environmental relevance, and how core this is to realising a vision of ultra-dense NBs in shaping a positive and lasting impact on ecosystems and our natural environment.
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Stimuli-sensitive drug delivery systems for site-specific antibiotic release. Drug Discov Today 2022; 27:1698-1705. [DOI: 10.1016/j.drudis.2022.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/19/2022] [Accepted: 02/17/2022] [Indexed: 12/12/2022]
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Pasupathy R, Pandian P, Selvamuthukumar S. Nanobubbles: A Novel Targeted Drug Delivery System. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e19604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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12
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Antimicrobial oxygen-loaded nanobubbles as promising tools to promote wound healing in hypoxic human keratinocytes. Toxicol Rep 2022; 9:154-162. [PMID: 35145879 PMCID: PMC8818485 DOI: 10.1016/j.toxrep.2022.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/29/2021] [Accepted: 01/25/2022] [Indexed: 11/26/2022] Open
Abstract
Chitosan-shelled/perfluoropentane-filled OLNBs are innovative oxygen nanocarriers. OLNBs are biocompatible with human keratinocytes after cell internalization. OLNBs promote normoxia-like migration of hypoxic human keratinocytes. Chitosan-shelled OLNBs display antimicrobial activity against MRSA and C. albicans. Oxygen-loaded nanobubbles appear promising tools to treat infected chronic wounds.
Chronic wounds (CWs) are typically characterized by persistent hypoxia, exacerbated inflammation, and impaired skin tissue remodeling. Additionally, CWs are often worsened by microbial infections. Oxygen-loaded nanobubbles (OLNBs), displaying a peculiar structure based on oxygen-solving perfluorocarbons such as perfluoropentane in the inner core and polysaccharydes including chitosan in the outer shell, have proven effective in delivering oxygen to hypoxic tissues. Antimicrobial properties have been largely reported for chitosan. In the present work chitosan/perfluoropentane OLNBs were challenged for biocompatibility with human skin cells and ability to promote wound healing processes, as well as for their antimicrobial properties against methicillin-resistant Staphylococcus aureus (MRSA) and Candida albicans. After cellular internalization, OLNBs were not toxic to human keratinocytes (HaCaT), whereas oxygen-free NBs (OFNBs) slightly affected their viability. Hypoxia-dependent inhibition of keratinocyte migratory ability after scratch was fully reversed by OLNBs, but not OFNBs. Both OLNBs and OFNBs exerted chitosan-induced short-term bacteriostatic activity against MRSA (up to 6 h) and long-term fungistatic activity against C. albicans (up to 24 h). Short-term antibacterial activity associated with NB prolonged adhesion to MRSA cell wall (up to 24 h) while long-term antifungal activity followed NB early internalization by C. albicans (already after 3 h of incubation). Taken altogether, these data support chitosan-shelled and perfluoropentane-cored OLNB potential as innovative, promising, non-toxic, and cost-effective antimicrobial devices promoting repair processes to be used for treatment of MRSA- and C. albicans-infected CWs.
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14
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Mazzaccaro D, Ticozzi R, D'Alessandro S, Delbue S, Nano G, Costa E, Argenziano M, Cavalli R, Prato M, Basilico N. Effect of antibiotic-loaded chitosan nanodroplets on Enterococci isolated from chronic ulcers of the lower limbs. Future Microbiol 2021; 15:1227-1236. [PMID: 33026879 DOI: 10.2217/fmb-2019-0255] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To investigate the effect of a new platform of nanocarriers, called nanodroplets (NDs), to enhance the in vitro activity of vancomycin (Vm), against bacterial colonies isolated from chronic ulcers of the lower limbs. Materials & methods: Oxygen-loaded nanodroplets (OLNDs) or oxygen-free nanodroplets (OFNDs) were loaded with Vm (Vm-OLNDs and Vm-OFNDs). MIC and minimal bactericidal concentrations were evaluated for Vm, OLNDs and OFNDs loaded with Vm, OLNDs and OFNDs. Results & conclusion: Nanodroplets, either with or without oxygen, appeared as a suitable platform of antibiotic nanocarriers to enhance the antibacterial effects of Vm against Enterococci, with a decrease in both MIC and minimal bactericidal concentration against Vm-resistant Enterococci strains.
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Affiliation(s)
- Daniela Mazzaccaro
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Italy.,School of Doctorate in Molecular & Translational Medicine, University of Milan, Milan, Italy
| | - Rosalia Ticozzi
- Department of Biomedical, Surgical & Dental Sciences, University of Milan, Milan, Italy
| | - Sarah D'Alessandro
- Department of Biomedical, Surgical & Dental Sciences, University of Milan, Milan, Italy
| | - Serena Delbue
- Department of Biomedical, Surgical & Dental Sciences, University of Milan, Milan, Italy
| | - Giovanni Nano
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Italy.,Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Elena Costa
- Clinical, Chemical & Microbiological Analysis Laboratory, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Monica Argenziano
- Department of Drug Science & Technology, University of Turin, Turin, Italy
| | - Roberta Cavalli
- Department of Drug Science & Technology, University of Turin, Turin, Italy
| | - Mauro Prato
- Department of Neurosciences, University of Turin, Turin, Italy.,Department of Public Health & Pediatric Science, University of Turin, Turin, Italy
| | - Nicoletta Basilico
- Department of Biomedical, Surgical & Dental Sciences, University of Milan, Milan, Italy
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Erel-Akbaba G, Akbaba H. Investigation of the potential therapeutic effect of cationic lipoplex mediated fibroblast growth factor-2 encoding plasmid DNA delivery on wound healing. ACTA ACUST UNITED AC 2021; 29:329-340. [PMID: 34491567 DOI: 10.1007/s40199-021-00410-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/04/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Developing an alternative and efficient therapy for wound healing has been an important research topic for pharmaceutical sciences. A straightforward but effective system for delivering fibroblast growth factor-2 (FGF-2) encoding plasmid DNA (pFGF-2) for wound healing therapy was aimed to develop in this study. METHODS In order to provide the delivery of pFGF-2, a delivery vector, namely, cationic lipid nanoparticle (cLN) was developed by the melt-emulsification process, complexed with pFGF-2 to form a lipoplex system and further characterized. The pFGF-2 binding and protecting ability of lipoplexes were evaluated. The cytotoxicity and transfection efficiency of the lipoplexes, FGF-2 expression levels, and in vitro wound healing ability have been investigated on the L929 fibroblast cell line. RESULTS The obtained lipoplex system has a particle size of 88.53 nm with a low PDI (0.185), and zeta potential values of 27.8 mV with a spherical shape. The ability of cLNs to bind pFGF-2 and protect against nucleases was demonstrated by gel retardation assay. Furthermore, the developed FGF-2 carrying lipoplexes system showed significant transfection and FGF-2 expression ability comparing naked plasmid. Finally, scratch assay revealed that the developed system is able to promote in vitro cell proliferation/migration in 48 h. CONCLUSION Promising results have been achieved with the use of lipoplexes carrying pFGF-2, and this approach could be considered as a potentially applicable concept for the future gene-based wound healing therapies.
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Affiliation(s)
- Gülşah Erel-Akbaba
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Izmir Katip Celebi University, 35620, Izmir, Turkey.
| | - Hasan Akbaba
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, 35100, Izmir, Turkey
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Xiong R, Xu RX, Huang C, De Smedt S, Braeckmans K. Stimuli-responsive nanobubbles for biomedical applications. Chem Soc Rev 2021; 50:5746-5776. [PMID: 33972972 DOI: 10.1039/c9cs00839j] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Stimuli-responsive nanobubbles have received increased attention for their application in spatial and temporal resolution of diagnostic techniques and therapies, particularly in multiple imaging methods, and they thus have significant potential for applications in the field of biomedicine. This review presents an overview of the recent advances in the development of stimuli-responsive nanobubbles and their novel applications. Properties of both internal- and external-stimuli responsive nanobubbles are highlighted and discussed considering the potential features required for biomedical applications. Furthermore, the methods used for synthesis and characterization of nanobubbles are outlined. Finally, novel biomedical applications are proposed alongside the advantages and shortcomings inherent to stimuli-responsive nanobubbles.
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Affiliation(s)
- Ranhua Xiong
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, P. R. China. and Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium.
| | - Ronald X Xu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230022, P. R. China and Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Chaobo Huang
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, P. R. China.
| | - Stefaan De Smedt
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, P. R. China. and Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium. and Centre for Advanced Light Microscopy, Ghent University, 9000, Ghent, Belgium.
| | - Kevin Braeckmans
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium. and Centre for Advanced Light Microscopy, Ghent University, 9000, Ghent, Belgium.
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Comparative Evaluation of Different Chitosan Species and Derivatives as Candidate Biomaterials for Oxygen-Loaded Nanodroplet Formulations to Treat Chronic Wounds. Mar Drugs 2021; 19:md19020112. [PMID: 33672056 PMCID: PMC7919482 DOI: 10.3390/md19020112] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 12/11/2022] Open
Abstract
Persistent hypoxia is a main clinical feature of chronic wounds. Intriguingly, oxygen-loaded nanodroplets (OLNDs), filled with oxygen-solving 2H,3H-decafluoropentane and shelled with polysaccharides, have been proposed as a promising tool to counteract hypoxia by releasing a clinically relevant oxygen amount in a time-sustained manner. Here, four different types of chitosan (low or medium weight (LW or MW), glycol-(G-), and methylglycol-(MG-) chitosan) were compared as candidate biopolymers for shell manufacturing. The aim of the work was to design OLND formulations with optimized physico-chemical characteristics, efficacy in oxygen release, and biocompatibility. All OLND formulations displayed spherical morphology, cationic surfaces, ≤500 nm diameters (with LW chitosan-shelled OLNDs being the smallest), high stability, good oxygen encapsulation efficiency, and prolonged oxygen release kinetics. Upon cellular internalization, LW, MW, and G-chitosan-shelled nanodroplets did not significantly affect the viability, health, or metabolic activity of human keratinocytes (HaCaT cell line). On the contrary, MG-chitosan-shelled nanodroplets showed very poor biocompatibility. Combining the physico-chemical and the biological results obtained, LW chitosan emerges as the best candidate biopolymer for future OLND application as a skin device to treat chronic wounds.
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18
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Pellow C, Tan J, Chérin E, Demore CEM, Zheng G, Goertz DE. High frequency ultrasound nonlinear scattering from porphyrin nanobubbles. ULTRASONICS 2021; 110:106245. [PMID: 32932144 DOI: 10.1016/j.ultras.2020.106245] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/14/2020] [Accepted: 09/02/2020] [Indexed: 06/11/2023]
Abstract
Emerging contrast imaging studies have highlighted the potential of nanobubbles for both intravascular and extravascular applications. Reports to date on nanobubbles have generally utilized low frequencies (<12 MHz), high concentrations (>109 mL-1), and B-mode or contrast-mode on preclinical and clinical systems. However, none of these studies directly examined nanobubble acoustic signatures systematically to implement nonlinear imaging schemes in a methodical manner based on nanobubble behaviour. Here, nanobubble nonlinear behaviour is investigated at high frequencies (12.5, 25, 30 MHz) and low concentration (106 mL-1) in a channel phantom, with different pulse types in single- and multi-pulse sequences to examine behaviour under conditions relevant to high frequency imaging. Porphyrin nanobubbles are demonstrated to initiate nonlinear scattering at high frequencies in a pressure-threshold dependent manner, as previously observed at low frequencies. This threshold behaviour was then utilized to demonstrate enhanced nanobubble imaging with pulse inversion, amplitude modulation, and a combination of the two, progressing towards the improved sensitivity and expanded utility of these ultrasound contrast agents.
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Affiliation(s)
- Carly Pellow
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; Princess Margaret Cancer Research Centre, 101 College St., Toronto, ON M5G 0A3, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada.
| | - Josephine Tan
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada
| | - Emmanuel Chérin
- Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada
| | - Christine E M Demore
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada
| | - Gang Zheng
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; Princess Margaret Cancer Research Centre, 101 College St., Toronto, ON M5G 0A3, Canada
| | - David E Goertz
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada
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19
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Enhancement strategies for transdermal drug delivery systems: current trends and applications. Drug Deliv Transl Res 2021; 12:758-791. [PMID: 33474709 PMCID: PMC7817074 DOI: 10.1007/s13346-021-00909-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2021] [Indexed: 12/11/2022]
Abstract
Transdermal drug delivery systems have become an intriguing research topic in pharmaceutical technology area and one of the most frequently developed pharmaceutical products in global market. The use of these systems can overcome associated drawbacks of other delivery routes, such as oral and parenteral. The authors will review current trends, and future applications of transdermal technologies, with specific focus on providing a comprehensive understanding of transdermal drug delivery systems and enhancement strategies. This article will initially discuss each transdermal enhancement method used in the development of first-generation transdermal products. These methods include drug/vehicle interactions, vesicles and particles, stratum corneum modification, energy-driven methods and stratum corneum bypassing techniques. Through suitable design and implementation of active stratum corneum bypassing methods, notably microneedle technology, transdermal delivery systems have been shown to deliver both low and high molecular weight drugs. Microneedle technology platforms have proven themselves to be more versatile than other transdermal systems with opportunities for intradermal delivery of drugs/biotherapeutics and therapeutic drug monitoring. These have shown that microneedles have been a prospective strategy for improving transdermal delivery systems.
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Scutera S, Argenziano M, Sparti R, Bessone F, Bianco G, Bastiancich C, Castagnoli C, Stella M, Musso T, Cavalli R. Enhanced Antimicrobial and Antibiofilm Effect of New Colistin-Loaded Human Albumin Nanoparticles. Antibiotics (Basel) 2021; 10:57. [PMID: 33430076 PMCID: PMC7827731 DOI: 10.3390/antibiotics10010057] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 12/27/2022] Open
Abstract
Multidrug-resistant (MDR) Gram-negative bacteria (GNB), such as Acinetobacter and Klebsiella, are responsible for severe hospital-acquired infections. Colistin, despite its toxicity and low tissue penetration, is considered the last resort antibiotic against these microorganisms. Of concern, the use of Colistin has recently been compromised by the emergence of Colistin resistance. Herein, we developed a new formulation consisting of multifunctional chitosan-coated human albumin nanoparticles for the delivery of Colistin (Col/haNPs). Col/haNPs were in vitro characterized for encapsulation efficiency, drug release, stability and cytotoxicity and were evaluated for antibacterial activity against MDR GNB (Acinetobacter baumannii and Klebsiella pneumoniae). Col/haNPs showed sizes lower than 200 nm, high encapsulation efficiency (98.65%) and prolonged in vitro release of Colistin. The safety of the nanoformulation was demonstrated by a negligible cytotoxicity on human fibroblasts and hemolytic activity. Col/haNPs evidenced a high antibacterial effect with a significant decrease in MIC values compared to free Colistin, in particular against Col-resistant strains with a pronounced decline of bacterial growth over time. Moreover, Col/haNPs exhibited an inhibitory effect on biofilm formation that was 4 and 60 fold higher compared to free Colistin, respectively for Colistin susceptible and resistant A. baumannii. Our findings suggest that Col/haNPs could represent a promising Colistin nanocarrier with high antimicrobial activity on MDR GNB.
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Affiliation(s)
- Sara Scutera
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy; (S.S.); (R.S.)
| | - Monica Argenziano
- Department of Drug Science and Technology, University of Turin, 10124 Turin, Italy; (M.A.); (F.B.); (C.B.); (R.C.)
| | - Rosaria Sparti
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy; (S.S.); (R.S.)
| | - Federica Bessone
- Department of Drug Science and Technology, University of Turin, 10124 Turin, Italy; (M.A.); (F.B.); (C.B.); (R.C.)
| | - Gabriele Bianco
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, 10126 Turin, Italy;
| | - Chiara Bastiancich
- Department of Drug Science and Technology, University of Turin, 10124 Turin, Italy; (M.A.); (F.B.); (C.B.); (R.C.)
- Institute Neurophysiopathol, INP, CNRS, Aix-Marseille University, 13005 Marseille, France
| | - Carlotta Castagnoli
- Skin Bank, Department of General and Specialized Surgery, University Hospital Città della Salute e della Scienza di Torino, 10126 Turin, Italy;
| | - Maurizio Stella
- Burn Center, CTO Hospital, Città della Salute e della Scienza di Torino, 10126 Turin, Italy;
| | - Tiziana Musso
- Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy; (S.S.); (R.S.)
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Turin, 10124 Turin, Italy; (M.A.); (F.B.); (C.B.); (R.C.)
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Pellow C, Abenojar EC, Exner AA, Zheng G, Goertz DE. Concurrent visual and acoustic tracking of passive and active delivery of nanobubbles to tumors. Am J Cancer Res 2020; 10:11690-11706. [PMID: 33052241 PMCID: PMC7545999 DOI: 10.7150/thno.51316] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023] Open
Abstract
Background: There has been growing interest in nanobubbles for their potential to extend bubble-mediated ultrasound approaches beyond that of their larger microbubble counterparts. In particular, the smaller scale of nanobubbles may enable them to access the tumor extravascular compartment for imaging and therapy in closer proximity to cancer cells. Compelling preliminary demonstrations of the imaging and therapeutic abilities of nanobubbles have thus emerged, with emphasis on their ability to extravasate. However, studies to date rely on indirect histologic evidence that cannot confirm whether the structures remain intact beyond the vasculature - leaving their extravascular potential largely untapped. Methods: Nanobubble acoustic scattering was assessed using a recently reported ultra-stable formulation at low concentration (106 mL-1) and frequency (1 MHz), over a range of pressures (100-1500 kPa) in a channel phantom. The pressure-dependent response was utilized as a basis for in vivo experiments where ultrasound transmitters and receivers were integrated into a window chamber for simultaneous intravital multiphoton microscopy and acoustic monitoring in tumor-affected microcirculation. Microscopy and acoustic data were utilized to assess passive and active delivery of nanobubbles and determine whether they remained intact beyond the vasculature. Results: Nanobubbles exhibit pressure-dependent nonlinear acoustic scattering. Nanobubbles are also found to have prolonged acoustic vascular pharmacokinetics, and passively extravasate intact into tumors. Ultrasound stimulation of nanobubbles is shown to actively enhance the delivery of both intact nanobubbles and shell material, increasing their spatial bioavailability deeper into the extravascular space. A range of acute vascular effects were also observed. Conclusion: This study presents the first direct evidence that nanobubbles passively and actively extravasate intact in tumor tissue, and is the first to directly capture acute vascular events from ultrasound-stimulation of nanobubbles. The insights gained here demonstrate an important step towards unlocking the potential of nanobubbles and extending ultrasound-based applications.
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22
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Shawli H, Iohara K, Tarrosh M, Huang GTJ, Nakashima M, Azim AA. Nanobubble-Enhanced Antimicrobial Agents: A Promising Approach for Regenerative Endodontics. J Endod 2020; 46:1248-1255. [DOI: 10.1016/j.joen.2020.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 05/30/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023]
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Donalisio M, Argenziano M, Rittà M, Bastiancich C, Civra A, Lembo D, Cavalli R. Acyclovir-loaded sulfobutyl ether-β-cyclodextrin decorated chitosan nanodroplets for the local treatment of HSV-2 infections. Int J Pharm 2020; 587:119676. [DOI: 10.1016/j.ijpharm.2020.119676] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 12/20/2022]
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Akbaba H, Erel-Akbaba G, Kotmakçı M, Başpınar Y. Enhanced Cellular Uptake and Gene Silencing Activity of Survivin-siRNA via Ultrasound-Mediated Nanobubbles in Lung Cancer Cells. Pharm Res 2020; 37:165. [PMID: 32761250 DOI: 10.1007/s11095-020-02885-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 07/20/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE Paclitaxel is a first-line drug for the therapy of lung cancer, however, drug resistance is a serious limiting factor, related to overexpression of anti-apoptotic proteins like survivin. To overcome this phenomenon, developing novel ultrasound responsive nanobubbles - nanosized drug delivery system- for the delivery of paclitaxel and siRNA in order to silence survivin expression in the presence of ultrasound was aimed. METHODS Paclitaxel-carrying nanobubble formulation was obtained by modifying the multistep method. Then, the complex formation of the nanobubbles - paclitaxel formulation with survivin-siRNA, was examined in terms of particle size, polydispersity index, zeta potential, and morphology. Furthermore, siRNA binding and protecting ability, cytotoxicity, cellular uptake, gene silencing, and induction of apoptosis studies were investigated in terms of lung cancer cells. RESULTS Developed nanobubbles have particle sizes of 218.9-369.6 nm, zeta potentials of 27-34 mV, were able to protect siRNA from degradation and delivered siRNA into the lung cancer cells. Survivin expression was significantly lower compared with the control groups and enhanced apoptosis was induced by the co-delivery of survivin-siRNA and paclitaxel. Furthermore, significantly higher effects were obtained in the presence of ultrasound induction. CONCLUSION The ultrasound responsive nanobubble system carrying paclitaxel and survivin-siRNA is a promising and effective approach against lung cancer cells.
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Affiliation(s)
- Hasan Akbaba
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, 35100, İzmir, Turkey.
| | - Gülşah Erel-Akbaba
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, 35100, İzmir, Turkey
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Izmir Katip Çelebi University, İzmir, Turkey
| | - Mustafa Kotmakçı
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, 35100, İzmir, Turkey
| | - Yücel Başpınar
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, 35100, İzmir, Turkey
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25
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Dentin Conditioning Protocol for Regenerative Endodontic Procedures. J Endod 2020; 46:1099-1104. [DOI: 10.1016/j.joen.2020.05.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/13/2020] [Accepted: 05/20/2020] [Indexed: 01/14/2023]
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Beyond Oncological Hyperthermia: Physically Drivable Magnetic Nanobubbles as Novel Multipurpose Theranostic Carriers in the Central Nervous System. Molecules 2020; 25:molecules25092104. [PMID: 32365941 PMCID: PMC7248690 DOI: 10.3390/molecules25092104] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/20/2020] [Accepted: 04/29/2020] [Indexed: 12/16/2022] Open
Abstract
Magnetic Oxygen-Loaded Nanobubbles (MOLNBs), manufactured by adding Superparamagnetic Iron Oxide Nanoparticles (SPIONs) on the surface of polymeric nanobubbles, are investigated as theranostic carriers for delivering oxygen and chemotherapy to brain tumors. Physicochemical and cyto-toxicological properties and in vitro internalization by human brain microvascular endothelial cells as well as the motion of MOLNBs in a static magnetic field were investigated. MOLNBs are safe oxygen-loaded vectors able to overcome the brain membranes and drivable through the Central Nervous System (CNS) to deliver their cargoes to specific sites of interest. In addition, MOLNBs are monitorable either via Magnetic Resonance Imaging (MRI) or Ultrasound (US) sonography. MOLNBs can find application in targeting brain tumors since they can enhance conventional radiotherapy and deliver chemotherapy being driven by ad hoc tailored magnetic fields under MRI and/or US monitoring.
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Lattwein KR, Shekhar H, Kouijzer JJP, van Wamel WJB, Holland CK, Kooiman K. Sonobactericide: An Emerging Treatment Strategy for Bacterial Infections. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:193-215. [PMID: 31699550 PMCID: PMC9278652 DOI: 10.1016/j.ultrasmedbio.2019.09.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/03/2019] [Accepted: 09/16/2019] [Indexed: 05/04/2023]
Abstract
Ultrasound has been developed as both a diagnostic tool and a potent promoter of beneficial bio-effects for the treatment of chronic bacterial infections. Bacterial infections, especially those involving biofilm on implants, indwelling catheters and heart valves, affect millions of people each year, and many deaths occur as a consequence. Exposure of microbubbles or droplets to ultrasound can directly affect bacteria and enhance the efficacy of antibiotics or other therapeutics, which we have termed sonobactericide. This review summarizes investigations that have provided evidence for ultrasound-activated microbubble or droplet treatment of bacteria and biofilm. In particular, we review the types of bacteria and therapeutics used for treatment and the in vitro and pre-clinical experimental setups employed in sonobactericide research. Mechanisms for ultrasound enhancement of sonobactericide, with a special emphasis on acoustic cavitation and radiation force, are reviewed, and the potential for clinical translation is discussed.
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Affiliation(s)
- Kirby R Lattwein
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
| | - Himanshu Shekhar
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Joop J P Kouijzer
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Willem J B van Wamel
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Christy K Holland
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Klazina Kooiman
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
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Zullino S, Argenziano M, Ansari S, Ciprian R, Nasi L, Albertini F, Cavalli R, Guiot C. Superparamagnetic Oxygen-Loaded Nanobubbles to Enhance Tumor Oxygenation During Hyperthermia. Front Pharmacol 2019; 10:1001. [PMID: 31572183 PMCID: PMC6749041 DOI: 10.3389/fphar.2019.01001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 08/06/2019] [Indexed: 12/28/2022] Open
Abstract
Tumor oxygenation is a critical issue for enhancing radiotherapy (RT) effectiveness. Alternating RT with hyperthermia improves tumor radiosensitivity by inducing a massive vasodilation of the neoangiogenic vasculature provided the whole tumor is properly heated. The aim of this work was to develop superparamagnetic oxygen-loaded nanobubbles (MOLNBs) as innovative theranostic hyperthermic agents to potentiate tumor oxygenation by direct intracellular oxygen administration. Magnetic oxygen-loaded nanobubbles were obtained by functionalizing dextran-shelled and perfluoropentane-cored nanobubbles with superparamagnetic iron oxide nanoparticles. Magnetic oxygen-loaded nanobubbles with sizes of about 380 nm were manufactured, and they were able to store oxygen and in vitro release it with prolonged kinetics. In vitro investigation showed that MOLNBs can increase tissue temperature when exposed to radiofrequency magnetic fields. Moreover, they are easily internalized by tumor cells, herein releasing oxygen with a sustained kinetics. In conclusion, MOLNBs can be considered a multimodal theranostic platform since, beyond their nature of contrast agent for magnetic resonance imaging due to magnetic characteristics, they showed echogenic properties and can be visualized using medical ultrasound.
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Affiliation(s)
- Sara Zullino
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy.,Department of Neuroscience, University of Torino, Torino, Italy
| | - Monica Argenziano
- Department of Drug Science and Technology, University of Torino, Torino, Italy
| | - Shoeb Ansari
- Department of Drug Science and Technology, University of Torino, Torino, Italy
| | - Roberta Ciprian
- Consiglio Nazionale delle Ricerche, Istituto dei Materiali per l'Elettronica ed il Magnetismo, Parma, Italy
| | - Lucia Nasi
- Consiglio Nazionale delle Ricerche, Istituto dei Materiali per l'Elettronica ed il Magnetismo, Parma, Italy
| | - Franca Albertini
- Consiglio Nazionale delle Ricerche, Istituto dei Materiali per l'Elettronica ed il Magnetismo, Parma, Italy
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Torino, Torino, Italy
| | - Caterina Guiot
- Department of Neuroscience, University of Torino, Torino, Italy
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Massella D, Argenziano M, Ferri A, Guan J, Giraud S, Cavalli R, Barresi AA, Salaün F. Bio-Functional Textiles: Combining Pharmaceutical Nanocarriers with Fibrous Materials for Innovative Dermatological Therapies. Pharmaceutics 2019; 11:E403. [PMID: 31405229 PMCID: PMC6723157 DOI: 10.3390/pharmaceutics11080403] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/30/2019] [Accepted: 08/05/2019] [Indexed: 12/16/2022] Open
Abstract
In the field of pharmaceutical technology, significant attention has been paid on exploiting skin as a drug administration route. Considering the structural and chemical complexity of the skin barrier, many research works focused on developing an innovative way to enhance skin drug permeation. In this context, a new class of materials called bio-functional textiles has been developed. Such materials consist of the combination of advanced pharmaceutical carriers with textile materials. Therefore, they own the possibility of providing a wearable platform for continuous and controlled drug release. Notwithstanding the great potential of these materials, their large-scale application still faces some challenges. The present review provides a state-of-the-art perspective on the bio-functional textile technology analyzing the several issues involved. Firstly, the skin physiology, together with the dermatological delivery strategy, is keenly described in order to provide an overview of the problems tackled by bio-functional textiles technology. Secondly, an overview of the main dermatological nanocarriers is provided; thereafter the application of these nanomaterial to textiles is presented. Finally, the bio-functional textile technology is framed in the context of the different dermatological administration strategies; a comparative analysis that also considers how pharmaceutical regulation is conducted.
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Affiliation(s)
- Daniele Massella
- ENSAIT, GEMTEX-Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France.
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino (TO), Italy.
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Monica Argenziano
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Torino, Italy
| | - Ada Ferri
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino (TO), Italy
| | - Jinping Guan
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Stéphane Giraud
- ENSAIT, GEMTEX-Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Torino, Italy
| | - Antonello A Barresi
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino (TO), Italy
| | - Fabien Salaün
- ENSAIT, GEMTEX-Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France
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30
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Bessone F, Argenziano M, Grillo G, Ferrara B, Pizzimenti S, Barrera G, Cravotto G, Guiot C, Stura I, Cavalli R, Dianzani C. Low-dose curcuminoid-loaded in dextran nanobubbles can prevent metastatic spreading in prostate cancer cells. NANOTECHNOLOGY 2019; 30:214004. [PMID: 30654342 DOI: 10.1088/1361-6528/aaff96] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Preventing recurrences and metastasis of prostate cancer after prostatectomy by administering adjuvant therapies is quite a controversial issue. In addition to effectiveness, absence of side effects and long term toxicity are mandatory. Curcuminoids (Curc) extracted with innovative techniques and effectively loaded by polymeric nanobubbles (Curc-NBs) satisfy such requirements. Curc-NBs showed stable over 30 d, were effectively internalized by tumor cells and were able to slowly release Curc in a sustained way. Significant biological effects were detected in PC-3 and DU-145 cell lines where Curc-NBs were able to inhibit adhesion and migration, to promote cell apoptosis and to affect cell viability and colony-forming capacity in a dose-dependent manner. Since the favourable effects are already detectable at very low doses, which can be reached at a clinical level, the actual drug concentration can be visualized and monitored by US or MRI, Curc-NBs can be proposed as an effective adjuvant theranostic tool.
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Affiliation(s)
- F Bessone
- Department of Drug Science & Technology, University of Torino, Torino, Italy
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31
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Martina K, Serpe L, Cavalli R, Cravotto G. Enabling technologies for the preparation of multifunctional “bullets” for nanomedicine. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2019. [DOI: 10.24075/brsmu.2018.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent advances in nanotechnology, including modern enabling techniques that can improve synthetic preparation and drug formulations, have opened up new frontiers in nanomedicine with the development of nanoscale carriers and assemblies. The use of delivery platforms has attracted attention over the past decade as researchers shift their focus away from the development of new drug candidates, and toward new means with which to deliver therapeutic and/or diagnostic agents. This work will explore a transdisciplinary approach for the production of a number of nanomaterials, nanocomplexes and nanobubbles and their application in a variety of potential biological and theranostic protocols. Particular attention will be paid to nanobubbles, stimuli responsive nanoparticles and cyclodextrin grafted nanosystems produced under non-conventional conditions, such as microwave and ultrasound irradiation. Besides nanoparticles preparation, ultrasound can also act as an enabling technology when activating sensitive nanobubbles and nanoparticles.
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Affiliation(s)
- K. Martina
- Department of Drug Science & Technology, Centre for Nanostructured Interfaces and Surfaces (NIS), University of Turin, Turin, Italy
| | - L. Serpe
- Department of Drug Science & Technology, Centre for Nanostructured Interfaces and Surfaces (NIS), University of Turin, Turin, Italy
| | - R. Cavalli
- Department of Drug Science & Technology, Centre for Nanostructured Interfaces and Surfaces (NIS), University of Turin, Turin, Italy
| | - G. Cravotto
- Department of Drug Science & Technology, Centre for Nanostructured Interfaces and Surfaces (NIS), University of Turin, Turin, Italy
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32
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Nouri-Felekori M, Khakbiz M, Nezafati N, Mohammadi J, Eslaminejad MB. Comparative analysis and properties evaluation of gelatin microspheres crosslinked with glutaraldehyde and 3-glycidoxypropyltrimethoxysilane as drug delivery systems for the antibiotic vancomycin. Int J Pharm 2018; 557:208-220. [PMID: 30597262 DOI: 10.1016/j.ijpharm.2018.12.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/01/2018] [Accepted: 12/17/2018] [Indexed: 11/30/2022]
Abstract
In the present comparative study, gelatin microspheres (GMs) were prepared by emulsification-solvent-extraction method using well-known crosslinker: glutaraldehyde (GA) and biocompatible silane-coupling agent: glycidoxypropyltrimethoxysilane (GPTMS). Crosslinking with GA was done by a definite and common procedure, while GPTMS crosslinking potency was investigated after 5, 10, 24, and 48 h synthesis periods and the fabrication method was adjusted in order for preparation of GMs with optimized morphological and compositional characteristics. The prepared GMs were then evaluated and compared as drug delivery systems for the antibiotic vancomycin (Vm). Morphological observations, FTIR, ninhydrin assay, swelling behavior evaluation and Hydrolytic degradation analysis proved successful modification of GMs and revealed that increasing synthesis time from 5 h to 24 h and 48 h, when using GPTMS as crosslinker, led to formation of morphologically-optimized GMs with highest crosslinking degree (∼50%) and the slowest hydrolytic degradation rate. Such GMs also exhibited most sustained release period of Vm. The antibacterial test results against gram-positive bacterium Staphylococcus aureus, were in accordance with the release profiles of Vm, as well. Together, GPTMS-crosslinked GMs with their preferable characteristics and known as biocompatible gelatin-siloxane hybrids, could act as proper drug delivery systems for the sustained release of the antibiotic vancomycin.
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Affiliation(s)
- Mohammad Nouri-Felekori
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mehrdad Khakbiz
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran.
| | - Nader Nezafati
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Karaj, Iran
| | - Javad Mohammadi
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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33
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Massella D, Ancona A, Garino N, Cauda V, Guan J, Salaun F, Barresi AA, Ferri A. Preparation of bio-functional textiles by surface functionalization of cellulose fabrics with caffeine loaded nanoparticles. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/460/1/012044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Bhise K, Sau S, Kebriaei R, Rice SA, Stamper KC, Alsaab HO, Rybak MJ, Iyer AK. Combination of Vancomycin and Cefazolin Lipid Nanoparticles for Overcoming Antibiotic Resistance of MRSA. MATERIALS 2018; 11:ma11071245. [PMID: 30036944 PMCID: PMC6073369 DOI: 10.3390/ma11071245] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/12/2018] [Accepted: 07/17/2018] [Indexed: 12/12/2022]
Abstract
Vancomycin is the treatment of choice for infections caused by methicillin-resistant Staphylococcus aureus (MRSA). Clinically, combinations of vancomycin (VAN) and beta-lactams have been shown to improve patient outcomes compared to VAN alone for the treatment of MRSA bloodstream infections. However, VAN is known to cause nephrotoxicity, which could be ameliorated using biocompatible lipid drug delivery systems or liposomes. Previous attempts have been made for encapsulation of VAN in liposomes; however, drug loading has been poor, mainly because of the high aqueous solubility of VAN. In this study, we report a robust method to achieve high loading of VAN and cefazolin (CFZ) in unilamellar liposomes. Liposomes of sizes between 170–198 nm were prepared by modified reverse phase evaporation method and achieved high loading of 40% and 26% (weight/weight) for VAN and CFZ, respectively. Liposomal VAN reduced minimum inhibitory concentration (MIC) values 2-fold in comparison to commercial VAN. The combination of liposomal VAN (LVAN) and liposomal CFZ (LCFZ) demonstrated a 7.9-fold reduction compared to LVAN alone. Rhodamine dye-loaded liposomes demonstrated superior cellular uptake in macrophage-like RAW 264.7 cells. Fluorescent images of LVAN-encapsulating near-infrared (NIR) dye, S0456 (LVAN-S0456) clearly indicated that LVAN-S0456 had reduced renal excretion with very low fluorescent intensity in the kidneys. It is anticipated that the long circulation and reduced kidney clearance of LVAN-S0456 compared to VAN-S0456 injected in mice can lead to enhanced efficacy against MRSA infections with reduced nephrotoxicity. Overall, our developed formulations of VAN when administered alone or in combination with CFZ, provide a rational approach for combating MRSA infections.
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Affiliation(s)
- Ketki Bhise
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Samaresh Sau
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Razieh Kebriaei
- Anti-Infective Research Laboratory, Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Seth A Rice
- Anti-Infective Research Laboratory, Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Kyle C Stamper
- Anti-Infective Research Laboratory, Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Hashem O Alsaab
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Michael J Rybak
- Anti-Infective Research Laboratory, Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
- Department of Pharmacy Services, Detroit Medical Center, Detroit, MI 48201, USA.
- Department of Medicine, Division of Infectious Diseases, School of Medicine, Wayne State University, Detroit, MI 48201, USA.
| | - Arun K Iyer
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48201, USA.
- Molecular Imaging Program, Karmanos Cancer Institute, Detroit, MI 48201, USA.
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35
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Alalaiwe A, Wang PW, Lu PL, Chen YP, Fang JY, Yang SC. Synergistic Anti-MRSA Activity of Cationic Nanostructured Lipid Carriers in Combination With Oxacillin for Cutaneous Application. Front Microbiol 2018; 9:1493. [PMID: 30034381 PMCID: PMC6043785 DOI: 10.3389/fmicb.2018.01493] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/18/2018] [Indexed: 12/12/2022] Open
Abstract
Nanoparticles have become a focus of interest due to their ability as antibacterial agents. The aim of this study was to evaluate the anti-methicillin-resistant Staphylococcus aureus (MRSA) activity of cationic nanostructured lipid carriers (NLC) combined with oxacillin against ATCC 33591 and clinical isolate. The cationic resource on the NLC surface was soyaethyl morpholinium ethosulfate (SME). NLC loaded with oxacillin was produced to assess the antibacterial activity and the effectiveness of topical application for treating cutaneous infection. The hydrodynamic diameter and zeta potential of oxacillin-loaded NLC were 177 nm and 19 mV, respectively. When combined with NLC, oxacillin exhibited synergistic MRSA eradication. After NLC encapsulation, the minimum bactericidal concentration (MBC) of oxacillin decreased from 250 to 62.5 μg/ml. The combined NLC and oxacillin reduced the MRSA biofilm thickness from 31.2 to 13.0 μm, which was lower than the effect of NLC (18.2 μm) and antibiotic (25.2 μm) alone. The oxacillin-loaded NLC showed significant reduction in the burden of intracellular MRSA in differentiated THP-1 cells. This reduction was greater than that achieved with individual treatment. The mechanistic study demonstrated the ability of cationic NLC to disrupt the bacterial membrane, leading to protein leakage. The cell surface disintegration also increased oxacillin delivery into the cytoplasm, activating the bactericidal process. Topical NLC treatment of MRSA abscess in the skin decreased the bacterial load by log 4 and improved the skin’s architecture and barrier function. Our results demonstrated that a combination of nanocarriers and an antibiotic could synergistically inhibit MRSA growth.
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Affiliation(s)
- Ahmed Alalaiwe
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj, Saudi Arabia
| | - Pei-Wen Wang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Po-Liang Lu
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ya-Ping Chen
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
| | - Jia-You Fang
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan.,Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.,Research Center for Industry of Human Ecology and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Shih-Chun Yang
- Department of Cosmetic Science, Providence University, Taichung, Taiwan
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36
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Wang SG, Chen YC, Chen YC. Antibacterial gold nanoparticle-based photothermal killing of vancomycin-resistant bacteria. Nanomedicine (Lond) 2018; 13:1405-1416. [DOI: 10.2217/nnm-2017-0380] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The extensive use of vancomycin has given rise to vancomycin-resistant bacterial strains, such as vancomycin-resistant Enterococci (VRE). We aim to explore potent medical treatments that can inhibit the growth of VRE. Materials & methods: Vancomycin-immobilized gold nanoparticles (Au@Van NPs) with polygonal shapes from one-pot reactions were generated within approximately 7 min. Results & discussion: The as-prepared Au NPs exhibit not only antibacterial capability but also photothermal competence. The temperature of the sample solution containing the as-prepared Au@Van NPs can be raised by approximately 15°C under irradiation by a near-infrared laser (λ = 808 nm) within 5 min. Conclusion: The required amount of vancomycin on the as-prepared Au@Van NPs combined with near-infrared irradiation for inhibiting VRE is approximately 16-fold lower than that of free-form vancomycin.
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Affiliation(s)
- Sin-Ge Wang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yen-Chun Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yu-Chie Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
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37
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Zullino S, Argenziano M, Stura I, Guiot C, Cavalli R. From Micro- to Nano-Multifunctional Theranostic Platform: Effective Ultrasound Imaging Is Not Just a Matter of Scale. Mol Imaging 2018; 17:1536012118778216. [PMID: 30213222 PMCID: PMC6144578 DOI: 10.1177/1536012118778216] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/20/2018] [Accepted: 04/08/2018] [Indexed: 12/20/2022] Open
Abstract
Ultrasound Contrast Agents (UCAs) consisting of gas-filled-coated Microbubbles (MBs) with diameters between 1 and 10 µm have been used for a number of decades in diagnostic imaging. In recent years, submicron contrast agents have proven to be a viable alternative to MBs for ultrasound (US)-based applications for their capability to extravasate and accumulate in the tumor tissue via the enhanced permeability and retention effect. After a short overview of the more recent approaches to ultrasound-mediated imaging and therapeutics at the nanoscale, phase-change contrast agents (PCCAs), which can be phase-transitioned into highly echogenic MBs by means of US, are here presented. The phenomenon of acoustic droplet vaporization (ADV) to produce bubbles is widely investigated for both imaging and therapeutic applications to develop promising theranostic platforms.
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Affiliation(s)
- Sara Zullino
- Department of Neuroscience, University of Turin, Turin, Italy
| | - Monica Argenziano
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Ilaria Stura
- Department of Clinical and Biological Science, University of Turin, Turin, Italy
| | - Caterina Guiot
- Department of Neuroscience, University of Turin, Turin, Italy
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Turin, Turin, Italy
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