1
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Macartney RA, Weaver E, Irwin R, Wylie MP, Burke GA, Lamprou DA. Co-delivery of VEGF and amoxicillin using LP-coated co-axial electrospun fibres for the potential treatment of diabetic wounds. BIOMATERIALS ADVANCES 2024; 158:213765. [PMID: 38242058 DOI: 10.1016/j.bioadv.2024.213765] [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: 12/05/2023] [Revised: 01/05/2024] [Accepted: 01/07/2024] [Indexed: 01/21/2024]
Abstract
Diabetic complications present throughout a wide range of body tissues, however one of the most widely recognised complications remains to be chronic diabetic wounds. Current treatment options largely rely on standard wound treatment routines which provide no promotion of wound healing mechanisms at different physiological stages of repair. Recently materials produced using novel additive manufacturing techniques have been receiving attention for applications in wound care and tissue repair. Additive manufacturing techniques have recently been used in the interest of targeted drug delivery and production of novel materials resembling characteristics of native tissues. The potential to exploit these highly tailorable manufacturing techniques for the design of novel wound care remedies is highly desirable. In the present study two additive manufacturing techniques are combined to produce a scaffold for the treatment of diabetic wounds. The combination of microfluidic manufacturing of an antimicrobial liposome (LP) formulation and a coaxial electrospinning method incorporating both antimicrobial and proangiogenic factors allowed dual delivery of therapeutics to target both infection and lack of vascularisation at wound sites. The coaxial fibres comprised of a polyvinyl alcohol (PVA) core containing vascular endothelial growth factor (VEGF) and a poly (l-lactide-co-ε-caprolactone) (PLCL) shell blended with amoxicillin (Amox). Additionally, a liposomal formulation was produced to incorporate Amox and adhered to the surface of fibres loaded with Amox and VEGF. The liposomal loading provided the potential to deliver a much higher, more clinically relevant dose of Amox without detrimentally changing the mechanical properties of the material. The growth factor release was sustained up to 7-days in vitro. The therapeutic effect of the antibiotic loading was analysed using a disk diffusion method with a significant increase in zone diameter following LP adhesion, proving the full scaffold system had improved efficacy against both Gram-positive and Gram-negative strains. Additionally, the dual-loaded scaffolds show enhanced potential for supporting vascular growth in vitro, as demonstrated via a viability assay and tubule formation studies. Results showed a significant increase in the average total number of tubes from 10 in control samples to 77 in samples fully-loaded with Amox and VEGF.
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Affiliation(s)
- Robyn A Macartney
- Nanotechnology & Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, York Street, Belfast BT15 1ED, UK; School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Edward Weaver
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Robyn Irwin
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Matthew P Wylie
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - George A Burke
- Nanotechnology & Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, York Street, Belfast BT15 1ED, UK
| | - Dimitrios A Lamprou
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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2
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Geng S, Guo P, Li X, Shi Y, Wang J, Cao M, Zhang Y, Zhang K, Li A, Song H, Zhang Z, Shi J, Liu J, Yang Y. Biomimetic Nanovehicle-Enabled Targeted Depletion of Intratumoral Fusobacterium nucleatum Synergizes with PD-L1 Blockade against Breast Cancer. ACS NANO 2024; 18:8971-8987. [PMID: 38497600 DOI: 10.1021/acsnano.3c12687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Immune checkpoint blockade (ICB) therapy has been approved for breast cancer (BC), but clinical response rates are limited. Recent studies have shown that commensal microbes colonize a variety of tumors and are closely related to the host immune system response. Here, we demonstrated that Fusobacterium nucleatum (F.n), which is prevalent in BC, creates an immunosuppressive tumor microenvironment (ITME) characterized by a high-influx of myeloid cells that hinders ICB therapy. Administering the antibiotic metronidazole in BC can deplete F.n and remodel the ITME. To prevent an imbalance in the systemic microbiota caused by antibiotic administration, we designed a biomimetic nanovehicle for on-site antibiotic delivery inspired by F.n homing to BC. Additionally, ferritin-nanocaged doxorubicin was coloaded into this nanovehicle, as immunogenic chemotherapy has shown potential for synergy with ICB. It has been demonstrated that this biomimetic nanovehicle can be precisely homed to BC and efficiently eliminate intratumoral F.n without disrupting the diversity and abundance of systemic microbiota. This ultimately remodels the ITME, improving the therapeutic efficacy of the PD-L1 blocker with a tumor inhibition rate of over 90% and significantly extending the median survival of 4T1 tumor-bearing mice.
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Affiliation(s)
- Shizhen Geng
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Pengke Guo
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xinling Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yaru Shi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jing Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Mengnian Cao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yunya Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Kaixiang Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Airong Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Haiwei Song
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jinjin Shi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Junjie Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yiling Yang
- Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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3
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de Nies L, Kobras CM, Stracy M. Antibiotic-induced collateral damage to the microbiota and associated infections. Nat Rev Microbiol 2023; 21:789-804. [PMID: 37542123 DOI: 10.1038/s41579-023-00936-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2023] [Indexed: 08/06/2023]
Abstract
Antibiotics have transformed medicine, saving millions of lives since they were first used to treat a bacterial infection. However, antibiotics administered to target a specific pathogen can also cause collateral damage to the patient's resident microbial population. These drugs can suppress the growth of commensal species which provide protection against colonization by foreign pathogens, leading to an increased risk of subsequent infection. At the same time, a patient's microbiota can harbour potential pathogens and, hence, be a source of infection. Antibiotic-induced selection pressure can cause overgrowth of resistant pathogens pre-existing in the patient's microbiota, leading to hard-to-treat superinfections. In this Review, we explore our current understanding of how antibiotic therapy can facilitate subsequent infections due to both loss of colonization resistance and overgrowth of resistant microorganisms, and how these processes are often interlinked. We discuss both well-known and currently overlooked examples of antibiotic-associated infections at various body sites from various pathogens. Finally, we describe ongoing and new strategies to overcome the collateral damage caused by antibiotics and to limit the risk of antibiotic-associated infections.
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Affiliation(s)
- Laura de Nies
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Carolin M Kobras
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Mathew Stracy
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK.
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4
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Hayer SS, Hwang S, Clayton JB. Antibiotic-induced gut dysbiosis and cognitive, emotional, and behavioral changes in rodents: a systematic review and meta-analysis. Front Neurosci 2023; 17:1237177. [PMID: 37719161 PMCID: PMC10504664 DOI: 10.3389/fnins.2023.1237177] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023] Open
Abstract
There are previous epidemiological studies reporting associations between antibiotic use and psychiatric symptoms. Antibiotic-induced gut dysbiosis and alteration of microbiota-gut-brain axis communication has been proposed to play a role in this association. In this systematic review and meta-analysis, we reviewed published articles that have presented results on changes in cognition, emotion, and behavior in rodents (rats and mice) after antibiotic-induced gut dysbiosis. We searched three databases-PubMed, Web of Science, and SCOPUS to identify such articles using dedicated search strings and extracted data from 48 articles. Increase in anxiety and depression-like behavior was reported in 32.7 and 40.7 percent of the study-populations, respectively. Decrease in sociability, social novelty preference, recognition memory and spatial cognition was found in 18.1, 35.3, 26.1, and 62.5 percent of the study-populations, respectively. Only one bacterial taxon (increase in gut Proteobacteria) showed statistically significant association with behavioral changes (increase in anxiety). There were no consistent findings with statistical significance for the potential biomarkers [Brain-derived neurotrophic factor (BDNF) expression in the hippocampus, serum corticosterone and circulating IL-6 and IL-1β levels]. Results of the meta-analysis revealed a significant association between symptoms of negative valence system (including anxiety and depression) and cognitive system (decreased spatial cognition) with antibiotic intake (p < 0.05). However, between-study heterogeneity and publication bias were statistically significant (p < 0.05). Risk of bias was evaluated to be high in the majority of the studies. We identified and discussed several reasons that could contribute to the heterogeneity between the results of the studies examined. The results of the meta-analysis provide promising evidence that there is indeed an association between antibiotic-induced gut dysbiosis and psychopathologies. However, inconsistencies in the implemented methodologies make generalizing these results difficult. Gut microbiota depletion using antibiotics may be a useful strategy to evaluate if and how gut microbes influence cognition, emotion, and behavior, but the heterogeneity in methodologies used precludes any definitive interpretations for a translational impact on clinical practice.
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Affiliation(s)
- Shivdeep S. Hayer
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada
| | - Soonjo Hwang
- Department of Psychiatry, University of Nebraska Medical Center, Omaha, NE, United States
| | - Jonathan B. Clayton
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
- Primate Microbiome Project, University of Nebraska-Lincoln, Lincoln, NE, United States
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5
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Fan X, Lu Y, Zhao Y, Miao H, Qi K, Wang R. An Insight into the Exploration of Antibiotic Resistance Genes in Calorie Restricted Diet Fed Mice. Nutrients 2023; 15:3198. [PMID: 37513616 PMCID: PMC10384538 DOI: 10.3390/nu15143198] [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: 06/15/2023] [Revised: 07/15/2023] [Accepted: 07/16/2023] [Indexed: 07/30/2023] Open
Abstract
Antibiotic resistance genes (ARGs) threaten the success of modern drugs against multidrug resistant infections. ARGs can be transferred to opportunistic pathogens by horizontal gene transfer (HGT). Many studies have investigated the characteristics of ARGs in various chemical stressors. Studies on the effects of dietary nutrition and dietary patterns on ARGs are rare. The study first demonstrated the effect of calorie restricted (CR) diet on the ARGs and mobile genetic elements (MGEs) in mouse feces and explored their relationship with gut microbiota and their functions. The results showed that the abundance of the total ARGs in mouse feces of the CR group increased, especially tetracycline ARGs (tetW-01). The abundance of the MLSB ARGs (ermB) decreased evidently in mouse feces of the CR group. In addition, the total abundance of MGEs decreased evidently in the CR group, especially tnpA-03. In the meantime, the abundance of Lactobacillus and Bifidobacterium in mouse feces of the CR group increased remarkably. The Spearman correlation analysis between gut microbiota and ARGs showed that several probiotics were significantly positively correlated with ARGs (tetW-01), which might be the main contribution to the increase in ARGs of the CR group.
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Affiliation(s)
- Xiuqin Fan
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yuanyuan Lu
- Department of Children's Health Care Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yunfeng Zhao
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Hongjian Miao
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (2019RU014), China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Kemin Qi
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Rui Wang
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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6
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Turner JG, Laabei M, Li S, Estrela P, Leese HS. Antimicrobial releasing hydrogel forming microneedles. BIOMATERIALS ADVANCES 2023; 151:213467. [PMID: 37236117 DOI: 10.1016/j.bioadv.2023.213467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/27/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023]
Abstract
Hydrogel-forming microneedle arrays as a technique for transdermal drug delivery show promise as an alternative to traditional drug delivery methods. In this work, hydrogel-forming microneedles have been created with effective, controlled delivery of amoxicillin and vancomycin within comparable therapeutic ranges to that of oral delivered antibiotics. Fabrication using reusable 3D printed master templates enabled quick and low-cost hydrogel microneedle manufacturing through micro-molding. By 3D printing at a tilt angle of 45° the resolution of the microneedle tip was improved by double (from ca. 64 μm down to 23 μm). Amoxicillin and vancomycin were encapsulated within the hydrogel's polymeric network through a unique room temperature swell/deswell drug loading method within minutes, eliminating the need for an external drug reservoir. The hydrogel-forming microneedle mechanical strength was maintained, and successful penetration of porcine skin grafts observed with negligible damage to the needles or surrounding skin morphology. Hydrogel swell rate was tailored by altering the crosslinking density, resulting in controlled antimicrobial release for an applicable delivered dosage. The potent antimicrobial properties of the antibiotic-loaded hydrogel-forming microneedles against both Escherichia coli and Staphylococcus aureus, highlights the beneficial use of hydrogel-forming microneedles towards the minimally invasive transdermal drug delivery of antibiotics.
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Affiliation(s)
- Joseph G Turner
- Materials for Health Lab, Department of Chemical Engineering, University of Bath, Bath BA2 7AY, UK; Centre for Bioengineering and Biomedical Technologies (CBio), University of Bath, Bath BA2 7AY, UK
| | - Maisem Laabei
- Department of Life Sciences, University of Bath, Bath BA2 7AY, UK
| | - Shuxian Li
- Department of Life Sciences, University of Bath, Bath BA2 7AY, UK
| | - Pedro Estrela
- Centre for Bioengineering and Biomedical Technologies (CBio), University of Bath, Bath BA2 7AY, UK; Department of Electronic and Electrical Engineering, University of Bath, Bath BA2 7AY, UK
| | - Hannah S Leese
- Materials for Health Lab, Department of Chemical Engineering, University of Bath, Bath BA2 7AY, UK; Centre for Bioengineering and Biomedical Technologies (CBio), University of Bath, Bath BA2 7AY, UK.
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7
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Miri AH, Kamankesh M, Rad-Malekshahi M, Yadegar A, Banar M, Hamblin MR, Haririan I, Aghdaei HA, Zali MR. Factors associated with treatment failure, and possible applications of probiotic bacteria in the arsenal against Helicobacter pylori. Expert Rev Anti Infect Ther 2023; 21:617-639. [PMID: 37171213 DOI: 10.1080/14787210.2023.2203382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
INTRODUCTION Helicobacter pylori is a widespread helical Gram-negative bacterium, which causes a variety of stomach disorders, such as peptic ulcer, chronic atrophic gastritis, and gastric cancer. This microbe frequently colonizes the mucosal layer of the human stomach and survives in the inhospitable microenvironment, by adapting to this hostile milieu. AREAS COVERED In this extensive review, we describe conventional antibiotic treatment regimens used against H. pylori including, empirical, tailored, and salvage therapies. Then, we present state-of-the-art information about reasons for treatment failure against H. pylori. Afterward, the latest advances in the use of probiotic bacteria against H. pylori infection are discussed. Finally, we propose a polymeric bio-platform to provide efficient delivery of probiotics for H. pylori infection. EXPERT OPINION For effective probiotic delivery systems, it is necessary to avoid the early release of probiotics at the acidic stomach pH, to protect them against enzymes and antimicrobials, and precisely target H. pylori bacteria which have colonized the antrum area of the stomach (basic pH).
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Affiliation(s)
- Amir Hossein Miri
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Kamankesh
- Polymer Chemistry Department, School of Science, University of Tehran, Tehran, Iran
| | - Mazda Rad-Malekshahi
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Banar
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg Doornfontein, Johannesburg, South Africa
| | - Ismaeil Haririan
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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8
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Bennardo F, Gallelli L, Palleria C, Colosimo M, Fortunato L, De Sarro G, Giudice A. Can platelet-rich fibrin act as a natural carrier for antibiotics delivery? A proof-of-concept study for oral surgical procedures. BMC Oral Health 2023; 23:134. [PMID: 36894902 PMCID: PMC9996939 DOI: 10.1186/s12903-023-02814-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/13/2023] [Indexed: 03/11/2023] Open
Abstract
OBJECTIVES Evaluate the role of platelet-rich fibrin (PRF) as a natural carrier for antibiotics delivery through the analysis of drug release and antimicrobial activity. MATERIALS AND METHODS PRF was prepared according to the L-PRF (leukocyte- and platelet-rich fibrin) protocol. One tube was used as control (without drug), while an increasing amount of gentamicin (0.25 mg, G1; 0.5 mg, G2; 0.75 mg, G3; 1 mg, G4), linezolid (0.5 mg, L1; 1 mg, L2; 1.5 mg, L3; 2 mg, L4), vancomycin (1.25 mg, V1; 2.5 mg, V2; 3.75 mg, V3; 5 mg, V4) was added to the other tubes. At different times the supernatant was collected and analyzed. Strains of E. coli, P. aeruginosa, S. mitis, H. influenzae, S. pneumoniae, S. aureus were used to assess the antimicrobial effect of PRF membranes prepared with the same antibiotics and compared to control PRF. RESULTS Vancomycin interfered with PRF formation. Gentamicin and linezolid did not change the physical properties of PRF and were released from membranes in the time intervals examined. The inhibition area analysis showed that control PRF had slight antibacterial activity against all tested microorganisms. Gentamicin-PRF had a massive antibacterial activity against all tested microorganisms. Results were similar for linezolid-PRF, except for its antibacterial activity against E. coli and P. aeruginosa that was comparable to control PRF. CONCLUSIONS PRF loaded with antibiotics allowed the release of antimicrobial drugs in an effective concentration. Using PRF loaded with antibiotics after oral surgery may reduce the risk of post-operative infection, replace or enhance systemic antibiotic therapy while preserving the healing properties of PRF. Further studies are needed to prove that PRF loaded with antibiotics represents a topical antibiotic delivery tool for oral surgical procedures.
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Affiliation(s)
- Francesco Bennardo
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100, Catanzaro, Italy.
| | - Luca Gallelli
- Pharmacology Unit, Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Caterina Palleria
- Pharmacology Unit, Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Manuela Colosimo
- Microbiology and Virology Unit, Pugliese-Ciaccio Hospital, Catanzaro, Italy
| | - Leonzio Fortunato
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100, Catanzaro, Italy
| | - Giovambattista De Sarro
- Pharmacology Unit, Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Amerigo Giudice
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100, Catanzaro, Italy
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9
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Bronner H, Brunswig F, Pluta D, Krysiak Y, Bigall N, Plettenburg O, Polarz S. Cooperative Functionalities in Porous Nanoparticles for Seeking Extracellular DNA and Targeting Pathogenic Biofilms via Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2023; 15. [PMID: 36892202 PMCID: PMC10037239 DOI: 10.1021/acsami.3c00210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Many pathogenic bacteria are getting more and more resistant against antibiotic treatment and even become up to 1.000× times more resilient in the form of a mature biofilm. Thus, one is currently prospecting for alternative methods for treating microbial infections, and photodynamic therapy is a highly promising approach by creating so-called reactive oxygen species (ROS) produced by a photosensitizer (PS) upon irradiation with light. Unfortunately, the unspecific activity of ROS is also problematic as they are harmful to healthy tissue as well. Notably, one knows that uncontrolled existence of ROS in the body plays a major role in the development of cancer. These arguments create need for advanced theranostic materials which are capable of autonomous targeting and detecting the existence of a biofilm, followed by specific activation to combat the infection. The focus of this contribution is on mesoporous organosilica colloids functionalized by orthogonal and localized click-chemistry methods. The external zone of the particles is modified by a dye of the Hoechst family. The particles readily enter a mature biofilm where adduct formation with extracellular DNA and a resulting change in the fluorescence signal occurs, but they cannot cross cellular membranes such as in healthy tissue. A different dye suitable for photochemical ROS generation, Acridine Orange, is covalently linked to the surfaces of the internal mesopores. The spectral overlap between the emission of Hoechst with the absorption band of Acridine Orange facilitates energy transfer by Förster resonance with up to 88% efficiency. The theranostic properties of the materials including viability studies were investigated in vitro on mature biofilms formed by Pseudomonas fluorescens and prove the high efficacy.
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Affiliation(s)
- Hannah Bronner
- Institute
of Inorganic Chemistry, Leibniz-University
Hannover, Callinstrasse
9, 30167 Hannover, Germany
| | - Fabian Brunswig
- Centre
of Biomolecular Drug Research (BMWZ), Institute of Organic Chemistry, Leibniz-University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
- Institute
of Medicinal Chemistry (IMC), Helmholtz
Centre Munich, Ingolstädter
Landstraße 1, D-85764 Neuherberg, Germany
| | - Denis Pluta
- Institute
of Physical Chemistry, Leibniz-University
Hannover, Callinstraße
3a, 30167 D-Hannover, Germany
- Laboratory
of Nano- and Quantum Engineering, Leibniz
University Hannover, 30167 Hanover, Germany
- Cluster of
Excellence PhoenixD (Photonics, Optics and Engineering-Innovation
Across Disciplines), Leibniz University
Hannover, 30167 Hannover, Germany
| | - Yaşar Krysiak
- Institute
of Inorganic Chemistry, Leibniz-University
Hannover, Callinstrasse
9, 30167 Hannover, Germany
| | - Nadja Bigall
- Institute
of Physical Chemistry, Leibniz-University
Hannover, Callinstraße
3a, 30167 D-Hannover, Germany
- Laboratory
of Nano- and Quantum Engineering, Leibniz
University Hannover, 30167 Hanover, Germany
- Cluster of
Excellence PhoenixD (Photonics, Optics and Engineering-Innovation
Across Disciplines), Leibniz University
Hannover, 30167 Hannover, Germany
| | - Oliver Plettenburg
- Centre
of Biomolecular Drug Research (BMWZ), Institute of Organic Chemistry, Leibniz-University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
- Institute
of Medicinal Chemistry (IMC), Helmholtz
Centre Munich, Ingolstädter
Landstraße 1, D-85764 Neuherberg, Germany
| | - Sebastian Polarz
- Institute
of Inorganic Chemistry, Leibniz-University
Hannover, Callinstrasse
9, 30167 Hannover, Germany
- Laboratory
of Nano- and Quantum Engineering, Leibniz
University Hannover, 30167 Hanover, Germany
- Cluster of
Excellence PhoenixD (Photonics, Optics and Engineering-Innovation
Across Disciplines), Leibniz University
Hannover, 30167 Hannover, Germany
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10
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Deaconu M, Prelipcean AM, Brezoiu AM, Mitran RA, Isopencu G, Matei C, Berger D. Novel Collagen-Polyphenols-Loaded Silica Composites for Topical Application. Pharmaceutics 2023; 15:pharmaceutics15020312. [PMID: 36839635 PMCID: PMC9962153 DOI: 10.3390/pharmaceutics15020312] [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: 12/15/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Lesions can affect skin functions and cause a simple issue, such as dehydration, or more challenging complications, such as bacterial infections. The purpose of this study was to design composites for topical application that can prevent and/or assist in bacterial infections and support cell regeneration using natural components. A polyphenolic extract obtained from Salvia officinalis was embedded in functionalized mesoporous silica nanoparticles for better stability, followed by their distribution into a collagen porous scaffold. The resulting polyphenols-loaded MSN exhibited enhanced antibacterial activity and good cytocompatibility. Improved thermal stability of the collagen porous scaffold was obtained due to the presence of the functionalized MSN. For the first time, collagen-polyphenols-loaded silica composites were reported in the literature as potential wound dressings. The newly developed composites showed excellent sterility.
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Affiliation(s)
- Mihaela Deaconu
- CAMPUS Research Institute, University “Politehnica” of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Ana-Maria Prelipcean
- National Institute of R&D for Biological Sciences, 296 Splaiul Independetei, 060031 Bucharest, Romania
- Correspondence: (A.-M.P.); (D.B.)
| | - Ana-Maria Brezoiu
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Raul-Augustin Mitran
- “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Gabriela Isopencu
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Cristian Matei
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Daniela Berger
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
- Correspondence: (A.-M.P.); (D.B.)
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11
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Attiguppe AP, Chatterjee D, DasGupta A. A Novel Integrated Transdermal Drug Delivery System with Micropump and Microneedle Made from Polymers. MICROMACHINES 2022; 14:71. [PMID: 36677132 PMCID: PMC9861243 DOI: 10.3390/mi14010071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/28/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Transdermal drug delivery (TDD), which enables targeted delivery with microdosing possibilities, has seen much progress in the past few years. This allows medical professionals to create bespoke treatment regimens and improve drug adherence through real-time monitoring. TDD also increases the effectiveness of the drugs in much smaller quantities. The use of polymers in the drug delivery field is on the rise owing to their low cost, scalability and ease of manufacture along with drug and bio-compatibility. In this work, we present the design, development and characterization of a polymer-based TDD platform fabricated using additive manufacturing technologies. The system consists of a polymer based micropump integrated with a drug reservoir fabricated by 3D printing and a polymer hollow microneedle array fabricated using photolithography. To the best of our knowledge, we present the fabrication and characterization of a 3D-printed piezoelectrically actuated non-planar valveless micropump and reservoir integrated with a polymer hollow microneedle array for the first time. The integrated system is capable of delivering water at a maximum flow rate of 1.03 mL/min and shows a maximum backpressure of 1.37 kPa while consuming only 400 mW. The system has the least number of moving parts. It can be easily fabricated using additive manufacturing technologies, and it is found to be suitable for drug delivery applications.
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Affiliation(s)
- Ajay Prabhakar Attiguppe
- Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600036, India
- Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Dhiman Chatterjee
- Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Amitava DasGupta
- Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai 600036, India
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12
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Nazli A, He DL, Liao D, Khan MZI, Huang C, He Y. Strategies and progresses for enhancing targeted antibiotic delivery. Adv Drug Deliv Rev 2022; 189:114502. [PMID: 35998828 DOI: 10.1016/j.addr.2022.114502] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 01/24/2023]
Abstract
Antibiotic resistance is a global health issue and a potential risk for society. Antibiotics administered through conventional formulations are devoid of targeting effect and often spread to various undesired body sites, leading to sub-lethal concentrations at the site of action and thus resulting in emergence of resistance, as well as side effects. Moreover, we have a very slim antibiotic pipeline. Drug-delivery systems have been designed to control the rate, time, and site of drug release, and innovative approaches for antibiotic delivery provide a glint of hope for addressing these issues. This review elaborates different delivery strategies and approaches employed to overcome the limitations of conventional antibiotic therapy. These include antibiotic conjugates, prodrugs, and nanocarriers for local and targeted antibiotic release. In addition, a wide range of stimuli-responsive nanocarriers and biological carriers for targeted antibiotic delivery are discussed. The potential advantages and limitations of targeted antibiotic delivery strategies are described along with possible solutions to avoid these limitations. A number of antibiotics successfully delivered through these approaches with attained outcomes and potentials are reviewed.
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Affiliation(s)
- Adila Nazli
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - David L He
- College of Chemistry, University of California, Berkeley, CA 94720, United States
| | - Dandan Liao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | | | - Chao Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China.
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China.
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13
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Fei Y, Ma Y, Zhang H, Li H, Feng G, Fang J. Nanotechnology for research and treatment of the intestine. J Nanobiotechnology 2022; 20:430. [PMID: 36175955 PMCID: PMC9523975 DOI: 10.1186/s12951-022-01517-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/14/2022] [Indexed: 11/17/2022] Open
Abstract
The establishment of intestinal in vitro models is crucial for elucidating intestinal cell-microbe intrinsic connections and interaction mechanisms to advance normalized intestinal diagnosis and precision therapy. This review discusses the application of nanomaterials in mucosal therapy and mechanism research in combination with the study of nanoscaffold in vitro models of the gut. By reviewing the original properties of nanomaterials synthesized by different physicochemical principles and modifying the original properties, the contribution of nanomaterials to solving the problems of short survival period, low cell differentiation rate, and poor reduction ability in traditional intestinal models is explored. According to nanomaterials’ different diagnostic mediators and therapeutic targets, the current diagnostic principles in inflammatory bowel disease, intestinal cancer, and other diseases are summarized inductively. In addition, the mechanism of action of nanomedicines in repairing mucosa, inhibiting inflammation, and alleviating the disease process is also discussed. Through such systematic elaboration, it offers a basis for nanomaterials to help advance in vitro research on the intestine and provide precision treatments in the clinic.
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Affiliation(s)
- Yanquan Fei
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, 410128, Hunan, China
| | - Yong Ma
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, 410128, Hunan, China
| | - Huaizu Zhang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, 410128, Hunan, China
| | - Hao Li
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Guangfu Feng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, 410128, Hunan, China.
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, 410128, Hunan, China.
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14
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Anjani QK, Sabri AHB, Domínguez-Robles J, Moreno-Castellanos N, Utomo E, Wardoyo LAH, Larrañeta E, Donnelly RF. Metronidazole nanosuspension loaded dissolving microarray patches: An engineered composite pharmaceutical system for the treatment of skin and soft tissue infection. BIOMATERIALS ADVANCES 2022; 140:213073. [PMID: 35964387 DOI: 10.1016/j.bioadv.2022.213073] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/23/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Bacteroides fragilis is one of the most common causative group of microorganisms that is associated with skin and soft tissue infections (SSTI). Metronidazole (MTZ) is the drug of choice used in the treatment of SSTI caused by the bacterium. However, owing to its physiochemical properties, MTZ have limited skin permeation, which render the drug unsuitable for the treatment of deep-rooted SSTIs. One strategy to overcome this limitation is to reformulate MTZ into nanosuspension which will then be loaded into dissolving microarray patches (MAPs) for the treatment of SSTIs caused by B. fragilis. Herein, we report for the first time on the preparation and optimisation of MAP loaded with MTZ nanosuspension (MTZ-NS). After screening a range of polymeric surfactants, we identified that Soluplus® resulted in the formation of MTZ-NS with the smallest particle size (115 nm) and a narrow PDI of 0.27. Next, the MTZ-NS was further optimised using a design of experiments (DoE) approach. The optimised MTZ-NS was then loaded into dissolving MAPs with varying MTZ-NS content. Furthermore, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) and cell proliferation assays along with LIVE/DEAD™ staining on the 3T3L1 cell line showed that the MTZ-NS loaded dissolving MAPs displayed minimal toxicity and acceptable biocompatibility. In vitro dermatokinetic studies showed that the MTZ-NS loaded MAPs were able to deliver the nitroimidazole antibiotic across all strata of the skin resulting in a delivery efficiency of 95 % after a 24-hour permeation study. Lastly, agar plating assay using bacterial cultures of B. fragilis demonstrated that MTZ-NS loaded MAP resulted in complete bacterial inhibition in the entire plate relative to the control group. Should this formulation be translated into clinical practice, this pharmaceutical approach may provide a minimally invasive strategy to treat SSTIs caused by B. fragilis.
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Affiliation(s)
- Qonita Kurnia Anjani
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; Fakultas Farmasi, Universitas Megarezky, Jl. Antang Raya No. 43, Makassar 90234, Indonesia
| | - Akmal Hidayat Bin Sabri
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Natalia Moreno-Castellanos
- Basic Science Department, Faculty of Health, Universidad Industrial de Santander, Bucaramanga 680001, Colombia
| | - Emilia Utomo
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Luki Ahmadi Hari Wardoyo
- Fakultas Seni Rupa dan Desain, Institut Teknologi Bandung, Jl. Ganesa No.10, Bandung 40132, Indonesia
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK.
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15
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Rong R, Raza F, Liu Y, Yuan WE, Su J, Qiu M. Blood cell-based drug delivery systems: a biomimetic platform for antibacterial therapy. Eur J Pharm Biopharm 2022; 177:273-288. [PMID: 35868489 DOI: 10.1016/j.ejpb.2022.07.009] [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: 03/24/2022] [Revised: 06/28/2022] [Accepted: 07/18/2022] [Indexed: 11/18/2022]
Abstract
With the rapid increase in multidrug-resistance against antibiotics, higher doses of antibiotics or more effective antibiotics are needed to treat diseases, which ultimately leads to a decrease in the body's immunity and seriously threatens human health worldwide. The efficiency of antibiotics has been a large challenge for years. To overcome this problem, many carriers are utilized for anti-bacteria, attempting to optimize the delivery of such drugs and transport them safely and directly to the site of disease. Blood cell-based drug delivery systems present several advantages as compared to polymeric delivery system. These blood cells including red blood cells (RBCs), leukocytes, platelets. The blood cells and their membranes can both be used as drug carriers to deliver antibacterial drugs. In addition, blood cells can overcome many physiological/pathological obstacles faced by nanoparticles in vivo and effectively deliver drugs to the site of the disease. In this paper, we review studies on blood cell-based delivery systems used in antibacterial therapy, and analyze different roles in antibacterial therapy, which provide basis for further study in this field.
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Affiliation(s)
- Ruonan Rong
- School of Pharmacy, Shanghai Jiao Tong University, 800, Dongchuan Road, 200240 Shanghai, China
| | - Faisal Raza
- School of Pharmacy, Shanghai Jiao Tong University, 800, Dongchuan Road, 200240 Shanghai, China
| | - Yuhao Liu
- School of Pharmacy, Shanghai Jiao Tong University, 800, Dongchuan Road, 200240 Shanghai, China
| | - Wei-En Yuan
- School of Pharmacy, Shanghai Jiao Tong University, 800, Dongchuan Road, 200240 Shanghai, China
| | - Jing Su
- School of Pharmacy, Shanghai Jiao Tong University, 800, Dongchuan Road, 200240 Shanghai, China.
| | - Mingfeng Qiu
- School of Pharmacy, Shanghai Jiao Tong University, 800, Dongchuan Road, 200240 Shanghai, China.
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16
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Zhang K, Ren X, Chen J, Wang C, He S, Chen X, Xiong T, Su J, Wang S, Zhu W, Zhang J, Wu L. Particle Design and Inhalation Delivery of Iodine for Upper Respiratory Tract Infection Therapy. AAPS PharmSciTech 2022; 23:189. [PMID: 35804252 PMCID: PMC9282151 DOI: 10.1208/s12249-022-02277-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/09/2022] [Indexed: 11/30/2022] Open
Abstract
Diseases caused by upper respiratory tract (URT) and pulmonary infections have been a serious threat to human health for millennia and lack of targeted effective therapeutic techniques. In this study, two kinds of cyclodextrin particles with typical particle shapes of nanocubes and microbars were synthesized through a facile process. Subsequently, the particles were used as carriers for loading and stabilizing iodine and characterizations were performed to demonstrate the loading mechanism. Next-generation impactor (NGI) experiments showed that iodine-loaded microbars (I2@microbars) had a deposition rate of 79.75% in URT, while iodine-loaded nanocubes (I2@nanocubes) were delivered to the deep lungs with a fine particle fraction (FPF) of 46.30%. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) indicated that the iodine-loaded nanocubes and microbars had similar bactericidal effect to povidone iodine solution. Cell viability studies and extracellular pro-inflammatory factor (TNF-α, IL-1β, IL-6) evaluations demonstrate noncytotoxic effects of the blank carriers and anti-inflammatory effects of iodine-loaded samples. The irritation of the rat pharynx by I2@microbars was evaluated for the behavioral observations, body weight changes, histopathological studies, and TNF-α, IL-1β, and IL-6 levels in pharyngeal tissues. The results showed that I2@microbars had no irritation to rat pharyngeal tissues at therapeutic doses. In conclusion, the present study provides novel treatment of URT infections via supramolecular cyclodextrin carriers for URT local therapy with iodine loading by a solvent-free method, which enhances the stability and reduces the inherent irritation without inhibiting their antimicrobial effects.
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Affiliation(s)
- Kaikai Zhang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 16 88, Meiling Road, Nanchang, 330004, China.,Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China
| | - Xiaohong Ren
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China
| | - Jiacai Chen
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China.,Nanjing University of Chinese Medicine, No. 138, Xianlin Road, Nanjing, 210000, China
| | - Caifen Wang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China.,College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Siyu He
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China
| | - Xiaojin Chen
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China
| | - Ting Xiong
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China.,College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Jiawen Su
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 16 88, Meiling Road, Nanchang, 330004, China.,Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China
| | - Shujun Wang
- College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Weifeng Zhu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 16 88, Meiling Road, Nanchang, 330004, China.
| | - Jiwen Zhang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 16 88, Meiling Road, Nanchang, 330004, China. .,Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China. .,Nanjing University of Chinese Medicine, No. 138, Xianlin Road, Nanjing, 210000, China. .,NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing, 100050, China.
| | - Li Wu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, No. 16 88, Meiling Road, Nanchang, 330004, China. .,Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 501, Haike Road, Shanghai, 201210, China.
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17
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Miri AH, Kamankesh M, Llopis-Lorente A, Liu C, Wacker MG, Haririan I, Asadzadeh Aghdaei H, Hamblin MR, Yadegar A, Rad-Malekshahi M, Zali MR. The Potential Use of Antibiotics Against Helicobacter pylori Infection: Biopharmaceutical Implications. Front Pharmacol 2022; 13:917184. [PMID: 35833028 PMCID: PMC9271669 DOI: 10.3389/fphar.2022.917184] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/31/2022] [Indexed: 11/13/2022] Open
Abstract
Helicobacter pylori (H. pylori) is a notorious, recalcitrant and silent germ, which can cause a variety of debilitating stomach diseases, including gastric and duodenal ulcers and gastric cancer. This microbe predominantly colonizes the mucosal layer of the human stomach and survives in the inhospitable gastric microenvironment, by adapting to this hostile milieu. In this review, we first discuss H. pylori colonization and invasion. Thereafter, we provide a survey of current curative options based on polypharmacy, looking at pharmacokinetics, pharmacodynamics and pharmaceutical microbiology concepts, in the battle against H. pylori infection.
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Affiliation(s)
- Amir Hossein Miri
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojtaba Kamankesh
- Polymer Chemistry Department, School of Science, University of Tehran, Tehran, Iran
| | - Antoni Llopis-Lorente
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Chenguang Liu
- College of Marine Life Science, Ocean University of China, Qingdao, China
| | - Matthias G. Wacker
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Ismaeil Haririan
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
- *Correspondence: Michael R. Hamblin, ; Abbas Yadegar, ; Mazda Rad-Malekshahi, ; Mohammad Reza Zali,
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Michael R. Hamblin, ; Abbas Yadegar, ; Mazda Rad-Malekshahi, ; Mohammad Reza Zali,
| | - Mazda Rad-Malekshahi
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- *Correspondence: Michael R. Hamblin, ; Abbas Yadegar, ; Mazda Rad-Malekshahi, ; Mohammad Reza Zali,
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Michael R. Hamblin, ; Abbas Yadegar, ; Mazda Rad-Malekshahi, ; Mohammad Reza Zali,
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18
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Abstract
Oral antibiotics remain the therapy of choice for severe bacterial infections; however, antibiotic use disrupts the intestinal microbiota, increasing the risk of colonization by intestinal pathogens. Currently, our understanding of antibiotic-mediated disturbances of the microbiota remains at the level of bacterial families or specific species, and little is known about the effect of antibiotics on potentially beneficial and pathogenic bacteria under the conditions of gut microbiota dysbiosis. Additionally, the question of whether the effects of antibiotics on the gut microbiota are temporary or permanent is controversial. In this study, we used 16S rRNA gene sequencing to evaluate the short- and long-term effects of ampicillin, vancomycin, metronidazole, and neomycin on the murine intestinal microbiota. We found that the changes in the intestinal microbiota reflected the antibiotics' mechanisms of action and that dysbiosis of the intestinal microbiota led to competition between different bacterial communities. In particular, an increase in Enterococcus, which accompanies a decrease in probiotics-related genera such as Lactobacillus, is commonly seen across antibiotic treatments. In addition, we found that these oral antibiotics had long-term negative effects on the intestinal microbiota and promoted the development of antibiotic-resistant bacterial strains. These results indicate that ampicillin, vancomycin, metronidazole, and neomycin have long-term negative effects and can cause irreversible changes in the diversity of the intestinal microbiota, thereby increasing the risk of host disease. IMPORTANCE The intestinal microbiota is a dynamic community of hundreds of millions of microorganisms that play important roles in human health. However, treatment with antibiotics can disrupt the delicate balance of this community, leading to deleterious effects on the host such as inflammation and enhanced susceptibility to infection. To date, most studies of the effects of antibiotic treatment on the microbiota have focused on specific intestinal pathogens and bacterial families. However, few studies have investigated the effects of antibiotic treatment on the relative abundance of probiotic bacteria, pathogenic bacteria, and opportunistic bacterial pathogens in the gut.
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19
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Kwak JH, Lee SW, Lee JE, Ha EK, Baek HS, Lee E, Kim JH, Han MY. Association of Antibiotic Use during the First 6 Months of Life with Body Mass of Children. Antibiotics (Basel) 2022; 11:antibiotics11040507. [PMID: 35453258 PMCID: PMC9033100 DOI: 10.3390/antibiotics11040507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/01/2022] [Accepted: 04/05/2022] [Indexed: 01/30/2023] Open
Abstract
In this study, our objective was to assess the association of body mass in preschool children with the use of antibiotics within 6 months after birth. National administrative databases were used to examine all children born between 2008 and 2009 in Korea. Exposure was defined as the use of systemic antibiotics during the first 6 months of age. The observed outcomes were stunting (height for age [HFA] z score < −2.0), short stature (HFA z score < −1.64), overweight (body mass index [BMI] for age z score ≥ 1.04), and obesity (BMI for age z score ≥ 1.64), and the children’s height and body weight were measured from three to six years of age. To balance characteristics between the antibiotic user and non-user groups, propensity score matching was performed. The outcomes were evaluated using a generalized estimation equation with the logit link function. Analysis of antibiotic use by children during the first 6 months of life indicated there were 203,073 users (54.9%) and 166,505 non-users (45.1%). After PS matching, there were 72,983 antibiotic users and 72,983 non-users. Antibiotic use was significantly associated with stunting (aOR = 1.198, 95% CI = 1.056 to 1.360) and short stature (aOR = 1.043, 95% CI = 1.004 to 1.083), and had significant negative association with HFA z score (weighted β = −0.023). The use of an antibiotic for 14 days or more had a marked association with stunting. Antibiotic use was also associated with overweight, obesity, and increased BMI for age z score. Antibiotic use during the first 6 months of life increased the risk of stunting, short stature, overweight, and obesity in preschool children.
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Affiliation(s)
- Ji Hee Kwak
- Department of Pediatrics, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 03181, Korea;
| | - Seung Won Lee
- Department of Data Science, College of Software Convergence, Sejong University, Seoul 05006, Korea; (S.W.L.); (J.E.L.)
- School of Medicine, Sungkyunkwan University, Suwon 16419, Korea
| | - Jung Eun Lee
- Department of Data Science, College of Software Convergence, Sejong University, Seoul 05006, Korea; (S.W.L.); (J.E.L.)
| | - Eun Kyo Ha
- Department of Pediatrics, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Seoul 07441, Korea;
| | - Hey-Sung Baek
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Hallym University Medical Center, Seoul 05355, Korea;
| | - Eun Lee
- Department of Pediatrics, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju 61469, Korea;
| | - Ju Hee Kim
- Department of Data Science, College of Software Convergence, Sejong University, Seoul 05006, Korea; (S.W.L.); (J.E.L.)
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Hallym University Medical Center, Seoul 05355, Korea;
- Correspondence: (J.H.K.); (M.Y.H.); Tel.: +82-2-2224-2251 (J.H.K.); +82-31-780-3491 (M.Y.H.); Fax: +82-31-780-3942 (M.Y.H.)
| | - Man Yong Han
- Department of Pediatrics, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam 13496, Korea
- Correspondence: (J.H.K.); (M.Y.H.); Tel.: +82-2-2224-2251 (J.H.K.); +82-31-780-3491 (M.Y.H.); Fax: +82-31-780-3942 (M.Y.H.)
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20
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Changes to Gut Microbiota Following Systemic Antibiotic Administration in Infants. Antibiotics (Basel) 2022; 11:antibiotics11040470. [PMID: 35453221 PMCID: PMC9025670 DOI: 10.3390/antibiotics11040470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023] Open
Abstract
Long-term antibiotic use can have consequences on systemic diseases, such as obesity, allergy, and depression, implicating the causal role of gut microbiome imbalance. However, the evaluation of the effect of antibiotics in early infancy on alterations to the gut microbiome remains poorly understood. This study aimed to evaluate the gut microbiome state in infancy following systemic antibiotic treatment. Twenty infants under 3 months of age who had received antibiotics for at least 3 days were enrolled, and their fecal samples were collected 4 weeks after antibiotic administration finished. Thirty-four age-matched healthy controls without prior exposure to antibiotics were also assessed. The relative bacterial abundance in feces was obtained via sequencing of 16 S rRNA genes, and alpha and beta diversities were evaluated. At the genus level, the relative abundance of Escherichia/Shigella and Bifidobacterium increased (p = 0.03 and p = 0.017, respectively) but that of Bacteroides decreased (p = 0.02) in the antibiotic treatment group. The microbiome of the antibiotic treatment group exhibited an alpha diversity lower than that of the control group. Thus, systemic antibiotic administration in early infancy affects the gut microbiome composition even after a month has passed; long-term studies are needed to further evaluate this.
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Sabri AHB, Anjani QK, Utomo E, Ripolin A, Donnelly RF. Development and characterization of a dry reservoir-hydrogel-forming microneedles composite for minimally invasive delivery of cefazolin. Int J Pharm 2022; 617:121593. [PMID: 35182702 DOI: 10.1016/j.ijpharm.2022.121593] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/10/2022] [Accepted: 02/12/2022] [Indexed: 12/15/2022]
Abstract
Cefazolin (CFZ) is one of the most extensively used cephalosporins. This antibiotic exerts its bactericidal activity by interfering with bacterial cell wall formation, leading to bacteriolysis. CFZ is highly polar, resulting in the drug having poor oral bioavailability. Accordingly, the antibiotic is administered via intramuscular or intravenous injections, which are both painful and invasive. Due to these limitations, there is an impetus to explore alternative drug delivery platforms which offer a minimally invasive approach to delivery CFZ into and across the skin. The current work presents the development of a composite pharmaceutical system composed of hydrogel-forming microneedles (MNs) in tandem with CFZ dry reservoirs. The hydrogel system was fabricated from Gantrez® S-97 and Carbopol® 974P NF crosslinked with PEG 10,000. Swelling kinetic studies showed that the hydrogel system developed was capable of achieving 4000% swelling in PBS pH 7.4. In addition, results from a solute diffusion study showed that CFZ was able to achieve ≈100% cumulative permeation across the swollen hydrogel film. When formulated into MNs, the hydrogel system was capable of breaching the stratum corneum, resulting in intradermal insertion of the hydrogel forming MNs into ex vivo neonatal porcine skin, as evidenced from optical coherence tomography. In addition, two different CFZ loaded dry reservoirs consisting of directly compressed tablets (DCT) and lyophilised (LYO) wafers were formulated and characterised. These dry reservoir systems showed fast dissolution, dissolving in phosphate buffer saline pH 7.4 in less than one minute. In vitro permeation studies, using full thickness ex vivo neonatal porcine skin were conducted. HPLC analysis demonstrated the dry reservoir combination consisting of DCT with hydrogel-forming MNs was capable of achieving up to 80 µg CFZ delivery into the epidermis within 2 hours of application. In addition, DCT reservoir coupled with hydrogel-forming MNs were able to deliver CFZ up to 1.8 mg into and across the skin at 24 hours. Should this system be translated into clinical practice, it may provide a minimally invasive strategy to administer CFZ for the treatment of infections such as septic arthritis, osteomyelitis and cellulitis.
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Affiliation(s)
- Akmal Hidayat Bin Sabri
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Qonita Kurnia Anjani
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Emilia Utomo
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Anastasia Ripolin
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK.
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22
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Wang R, Chen D, Wang F, Fan X, Fan C, Tang T, Li P, Yang M, Zhao Y, Qi K. An insight into the exploration of proliferation of antibiotic resistance genes in high-fat diet induced obesity mice. Genomics 2021; 113:2503-2512. [PMID: 34089783 DOI: 10.1016/j.ygeno.2021.05.041] [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] [Received: 12/07/2020] [Revised: 05/07/2021] [Accepted: 05/31/2021] [Indexed: 01/07/2023]
Abstract
Using mice as an animal model, we first demonstrated the significant proliferation of ARGs and the change of mobile genetic elements (MGEs) in high-fat diet induced obesity (DIO) mice, which the ermB and tnpA-03 genes mostly increased, illuminating that DIO could enrich the abundance of ARGs. Additionally, Lactobacillus sharply increased in the DIO mice and might contribute to the proliferation of ARGs and dramatical change of MGEs in the HFD groups. Finally, procrustes analysis showed the explanatory variables of the MGEs, the metabolites, and the microbial communities for the ARGs accounted for 94.3%, 53.4%, and 68.1%, respectively, and implying that MGEs might be the most direct factor affecting ARGs, and microbiota could be the main driver of the proliferation of ARGs in the DIO mice.
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Affiliation(s)
- Rui Wang
- Laboratory of Nutrition and Development,Beijing Pediatric Research Institute,Key Laboratory of Major Diseases in Children,Ministry of Education,Beijing Children's Hospital,Capital Medical University,National Center for Children's Health, Beijing 100045, PR China
| | - Dawei Chen
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (No. 2019RU014), China National Center for Food Safety Risk Assessment, PR China.
| | - Fang Wang
- Department of Psychiatry, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Xiuqin Fan
- Laboratory of Nutrition and Development,Beijing Pediatric Research Institute,Key Laboratory of Major Diseases in Children,Ministry of Education,Beijing Children's Hospital,Capital Medical University,National Center for Children's Health, Beijing 100045, PR China
| | - Chaonan Fan
- Laboratory of Nutrition and Development,Beijing Pediatric Research Institute,Key Laboratory of Major Diseases in Children,Ministry of Education,Beijing Children's Hospital,Capital Medical University,National Center for Children's Health, Beijing 100045, PR China
| | - Tiantian Tang
- Laboratory of Nutrition and Development,Beijing Pediatric Research Institute,Key Laboratory of Major Diseases in Children,Ministry of Education,Beijing Children's Hospital,Capital Medical University,National Center for Children's Health, Beijing 100045, PR China
| | - Ping Li
- Laboratory of Nutrition and Development,Beijing Pediatric Research Institute,Key Laboratory of Major Diseases in Children,Ministry of Education,Beijing Children's Hospital,Capital Medical University,National Center for Children's Health, Beijing 100045, PR China
| | - Mengyi Yang
- Laboratory of Nutrition and Development,Beijing Pediatric Research Institute,Key Laboratory of Major Diseases in Children,Ministry of Education,Beijing Children's Hospital,Capital Medical University,National Center for Children's Health, Beijing 100045, PR China
| | - Yunfeng Zhao
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (No. 2019RU014), China National Center for Food Safety Risk Assessment, PR China
| | - Kemin Qi
- Laboratory of Nutrition and Development,Beijing Pediatric Research Institute,Key Laboratory of Major Diseases in Children,Ministry of Education,Beijing Children's Hospital,Capital Medical University,National Center for Children's Health, Beijing 100045, PR China.
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Kelly SA, Nzakizwanayo J, Rodgers AM, Zhao L, Weiser R, Tekko IA, McCarthy HO, Ingram RJ, Jones BV, Donnelly RF, Gilmore BF. Antibiotic Therapy and the Gut Microbiome: Investigating the Effect of Delivery Route on Gut Pathogens. ACS Infect Dis 2021; 7:1283-1296. [PMID: 33843198 DOI: 10.1021/acsinfecdis.1c00081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The contribution of the gut microbiome to human health has long been established, with normal gut microbiota conferring protection against invasive pathogens. Antibiotics can disrupt the microbial balance of the gut, resulting in disease and the development of antimicrobial resistance. The effect of antibiotic administration route on gut dysbiosis remains under-studied to date, with conflicting evidence on the differential effects of oral and parenteral delivery. We have profiled the rat gut microbiome following treatment with commonly prescribed antibiotics (amoxicillin and levofloxacin), via either oral or intravenous administration. Fecal pellets were collected over a 13-day period and bacterial populations were analyzed by 16S rRNA gene sequencing. Significant dysbiosis was observed in all treatment groups, regardless of administration route. More profound dysbiotic effects were observed following amoxicillin treatment than those with levofloxacin, with population richness and diversity significantly reduced, regardless of delivery route. The effect on specific taxonomic groups was assessed, revealing significant disruption following treatment with both antibiotics. Enrichment of a number of groups containing known gut pathogens was observed, in particular, with amoxicillin, such as the family Enterobacteriaceae. Depletion of other commensal groups was also observed. The degree of dysbiosis was significantly reduced toward the end of the sampling period, as bacterial populations began to return to pretreatment composition. Richness and diversity levels appeared to return to pretreatment levels more quickly in intravenous groups, suggesting convenient parenteral delivery systems may have a role to play in reducing longer term gut dysbiosis in the treatment of infection.
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Affiliation(s)
- Stephen A Kelly
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, U.K., BT9 7BL
| | - Jonathan Nzakizwanayo
- Department of Biology & Biochemistry, University of Bath, Claverton Down, Bath, U.K., BA2 7AX
| | - Aoife M Rodgers
- Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland, W23 F2K8
| | - Li Zhao
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, U.K., BT9 7BL
| | - Rebecca Weiser
- Microbiomes, Microbes and Informatics Group, Organisms and Environment Division, Cardiff School of Biosciences, Cardiff University Cardiff, U.K., CF10 3AX
| | - Ismaiel A Tekko
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, U.K., BT9 7BL
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Aleppo University, Aleppo, Syria
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, U.K., BT9 7BL
| | - Rebecca J Ingram
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, U.K., BT9 7BL
| | - Brian V Jones
- Department of Biology & Biochemistry, University of Bath, Claverton Down, Bath, U.K., BA2 7AX
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, U.K., BT9 7BL
| | - Brendan F Gilmore
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, U.K., BT9 7BL
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Zhang S, Lu X, Wang B, Zhang G, Liu M, Geng S, Sun L, An J, Zhang Z, Zhang H. A soft anti-virulence liposome realizing the explosive release of antibiotics at an infectious site to improve antimicrobial therapy. J Mater Chem B 2021; 9:147-158. [PMID: 33226396 DOI: 10.1039/d0tb02255a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pore-forming toxins (PFTs), the most common virulence proteins, are promising therapeutic keys in bacterial infections. CAL02, consisting of sphingomyelin (Sm) and containing a maximum ratio of cholesterol (Ch), has been applied to sequester PFTs. However, Sm, a saturated phospholipid, leads to structural rigidity of the liposome, which does not benefit PFT combination. Therefore, in order to decrease the membrane rigidity and improve the fluidity of liposomes, we have introduced an unsaturated phospholipid, phosphatidylcholine (Pc), to the saturated Sm. In this report, a soft nanoliposome (called CSPL), composed of Ch, Sm and Pc, was artificially prepared. In order to further improve its antibacterial effect, vancomycin (Van) was loaded into the hydrophilic core of CSPL, where Van can be released radically at the infectious site through transmembrane pores formed by the PFTs in CSPL. This soft Van@CSPL nanoliposome with detoxification/drug release was able to inhibit the possibility of antibiotic resistance and could play a better role in treating severe invasive infections in mice.
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Affiliation(s)
- Shudong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, No. 100, Kexue Avenue, Zhengzhou 450001, China.
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25
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Intramuscular injection of tetracycline decreased gut microbial diversity in mouse. Mamm Genome 2020; 31:295-308. [PMID: 33221999 DOI: 10.1007/s00335-020-09852-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/05/2020] [Indexed: 10/22/2022]
Abstract
Antibiotics contribute a lot to human beings and can kill bacteria effectively. However, more and more studies show that antibiotics can disturb the intestinal microbial community. It has been widely reported that oral antibiotics can reduce the diversity of intestinal microflora, but the effect of intramuscular injection on intestinal microflora is less studied. In this study, we sequenced the intestinal microflora of mice treated with tetracycline by 16SrRNA method, and found that intramuscular injection of tetracycline (TET) can also reduce the intestinal microbial richness of mice. In addition, the results showed that within a certain range (3 mg), with the increase of TET injection concentration, the wind of intestinal microflora in mice decreased significantly. When the injection concentration reached saturation, although the amount of TET injection was increased, the degree of intestinal flora affected was not increased. The results showed that the degree of diversity decrease was in direct proportion to the amount of tetracycline injection in the saturated concentration, but not positively related to the high amount of TET injection after exceeding the saturated concentration.
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26
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Mihai AD, Chircov C, Grumezescu AM, Holban AM. Magnetite Nanoparticles and Essential Oils Systems for Advanced Antibacterial Therapies. Int J Mol Sci 2020; 21:ijms21197355. [PMID: 33027980 PMCID: PMC7582471 DOI: 10.3390/ijms21197355] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022] Open
Abstract
Essential oils (EOs) have attracted considerable interest in the past few years, with increasing evidence of their antibacterial, antiviral, antifungal, and insecticidal effects. However, as they are highly volatile, the administration of EOs to achieve the desired effects is challenging. Therefore, nanotechnology-based strategies for developing nanoscaled carriers for their efficient delivery might offer potential solutions. Owing to their biocompatibility, biodegradability, low toxicity, ability to target a tissue specifically, and primary structures that allow for the attachment of various therapeutics, magnetite nanoparticles (MNPs) are an example of such nanocarriers that could be used for the efficient delivery of EOs for antimicrobial therapies. The aim of this paper is to provide an overview of the use of EOs as antibacterial agents when coupled with magnetite nanoparticles (NPs), emphasizing the synthesis, properties and functionalization of such NPs to enhance their efficiency. In this manner, systems comprising EOs and MNPs could offer potential solutions that could overcome the challenges associated with biofilm formation on prosthetic devices and antibiotic-resistant bacteria by ensuring a controlled and sustained release of the antibacterial agents.
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Affiliation(s)
- Antonio David Mihai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.D.M.); (C.C.)
| | - Cristina Chircov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.D.M.); (C.C.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.D.M.); (C.C.)
- Correspondence: or ; Tel.: +40-21-318-1000
| | - Alina Maria Holban
- Microbiology-Immunology Department, Faculty of Biology, University of Bucharest, 1–3 Portocalelor Lane, Sector 5, 77206 Bucharest, Romania; or
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27
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Targeting Gut Microbial Biofilms-A Key to Hinder Colon Carcinogenesis? Cancers (Basel) 2020; 12:cancers12082272. [PMID: 32823729 PMCID: PMC7465663 DOI: 10.3390/cancers12082272] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 12/18/2022] Open
Abstract
Colorectal cancer (CRC) is a global public health issue which poses a substantial humanistic and economic burden on patients, healthcare systems and society. In recent years, intestinal dysbiosis has been suggested to be involved in the pathogenesis of CRC, with specific pathogens exhibiting oncogenic potentials such as Fusobacterium nucleatum, Escherichia coli and enterotoxigenic Bacteroides fragilis having been found to contribute to CRC development. More recently, it has been shown that initiation of CRC development by these microorganisms requires the formation of biofilms. Gut microbial biofilm forms in the inner colonic mucus layer and is composed of polymicrobial communities. Biofilm results in the redistribution of colonic epithelial cell E-cadherin, increases permeability of the gut and causes a loss of function of the intestinal barrier, all of which enhance intestinal dysbiosis. This literature review aims to compile the various strategies that target these pathogenic biofilms and could potentially play a role in the prevention of CRC. We explore the potential use of natural products, silver nanoparticles, upconverting nanoparticles, thiosalicylate complexes, anti-rheumatic agent (Auranofin), probiotics and quorum-sensing inhibitors as strategies to hinder colon carcinogenesis via targeting colon-associated biofilms.
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28
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Dubey KK, Indu, Sharma M. Reprogramming of antibiotics to combat antimicrobial resistance. Arch Pharm (Weinheim) 2020; 353:e2000168. [DOI: 10.1002/ardp.202000168] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/04/2020] [Accepted: 07/11/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Kashyap K. Dubey
- Bioprocess Engineering Laboratory, Department of Biotechnology Central University of Haryana Mahendergarh Haryana India
- School of Biotechnology Jawaharlal Nehru University New Delhi India
| | - Indu
- Bioprocess Engineering Laboratory, Department of Biotechnology Central University of Haryana Mahendergarh Haryana India
| | - Manisha Sharma
- Bioprocess Engineering Laboratory, Department of Biotechnology Central University of Haryana Mahendergarh Haryana India
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Marchianò V, Matos M, Serrano-Pertierra E, Gutiérrez G, Blanco-López MC. Vesicles as antibiotic carrier: State of art. Int J Pharm 2020; 585:119478. [PMID: 32473370 DOI: 10.1016/j.ijpharm.2020.119478] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/15/2020] [Accepted: 05/24/2020] [Indexed: 12/22/2022]
Abstract
Antimicrobial resistance (AMR) has become a global health problem. Bacteria are able to adapt to different environments, with the presence or absence of a host, forming colonies and biofilms. In fact, biofilm formation confers chemical protection to the microbial cells, thus making most of the conventional antibiotics ineffective. Prevention and destruction of biofilms is a challenging task that should be addressed by a multidisciplinary approach from different research fields. One of the medical strategies used against biofilms is the therapy with drug delivery systems. Lipidic nanovesicles are a good choice for encapsulating drugs, increasing their pharmacodynamics and reducing side effects. These soft nanovesicles show significant advantages for their high biocompatibility, physical and chemistry properties, good affinity with drugs, and easy route of administration. This review summarizes the current knowledge on different types of vesicles which may be used as antibiotic carriers. The main preparation and purification methods for the synthesis of these vesicles are also presented. The advantages of drug encapsulation are critically reviewed. In addition, recent works on endolysin formulations as novel, "greener" and efficient antibiofilm solution are included. This paper can provide useful background for the design of novel efficient formulations and synergistic nanomaterials and could be also useful at the pharmaceutical industry to develop wastewater treatments and reduce the antibiotics in the environmental waters.
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Affiliation(s)
- Verdiana Marchianò
- Department of Physical and Analytical Chemistry, University of Oviedo, 33006 Oviedo, Spain; Department of Chemical Engineering and Environmental Technology, University of Oviedo, 33006, Spain
| | - María Matos
- Department of Chemical Engineering and Environmental Technology, University of Oviedo, 33006, Spain; Institute of Biotechnology of Asturias, University of Oviedo, 33006, Spain
| | - Esther Serrano-Pertierra
- Department of Physical and Analytical Chemistry, University of Oviedo, 33006 Oviedo, Spain; Institute of Biotechnology of Asturias, University of Oviedo, 33006, Spain
| | - Gemma Gutiérrez
- Department of Chemical Engineering and Environmental Technology, University of Oviedo, 33006, Spain; Institute of Biotechnology of Asturias, University of Oviedo, 33006, Spain.
| | - M C Blanco-López
- Department of Physical and Analytical Chemistry, University of Oviedo, 33006 Oviedo, Spain; Institute of Biotechnology of Asturias, University of Oviedo, 33006, Spain.
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Dubashynskaya NV, Skorik YA. Polymyxin Delivery Systems: Recent Advances and Challenges. Pharmaceuticals (Basel) 2020; 13:E83. [PMID: 32365637 PMCID: PMC7281078 DOI: 10.3390/ph13050083] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023] Open
Abstract
Polymyxins are vital antibiotics for the treatment of multiresistant Gram-negative ESKAPE pathogen infections. However, their clinical value is limited by their high nephrotoxicity and neurotoxicity, as well as their poor permeability and absorption in the gastrointestinal tract. This review focuses on various polymyxin delivery systems that improve polymyxin bioavailability and reduce drug toxicity through targeted and controlled release. Currently, the most suitable systems for improving oral, inhalation, and parenteral polymyxin delivery are polymer particles, liposomes, and conjugates, while gels, polymer fibers, and membranes are attractive materials for topical administration of polymyxin for the treatment of infected wounds and burns. In general, the application of these systems protects polymyxin molecules from the negative effects of both physiological and pathological factors while achieving higher concentrations at the target site and reducing dosage and toxicity. Improving the properties of polymyxin will be of great interest to researchers who are focused on developing antimicrobial drugs that show increased efficacy and safety.
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Affiliation(s)
| | - Yury A. Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, St. Petersburg 199004, Russia;
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