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Chen H, Li Y, Chen D, Fang Y, Gong X, Wang K, Ma C. Photothermally enhanced antibacterial wound healing using albumin-loaded tanshinone IIA and IR780 nanoparticles. Front Bioeng Biotechnol 2024; 12:1487660. [PMID: 39506972 PMCID: PMC11538050 DOI: 10.3389/fbioe.2024.1487660] [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: 08/28/2024] [Accepted: 10/14/2024] [Indexed: 11/08/2024] Open
Abstract
Chronic and infected wounds, particularly those caused by bacterial infections, present significant challenges in medical treatment. This study aimed to develop a novel nanoparticle formulation to enhance wound healing by combining antimicrobial and photothermal therapy using albumin as a carrier for Tanshinone IIA and the near-infrared photothermal agent IR780. The nanoparticles were synthesized to exploit the antimicrobial effects of Tanshinone IIA and the photothermal properties of IR780 when exposed to near-infrared laser irradiation. Characterization of the nanoparticles was performed using Transmission Electron Microscopy (TEM) and spectroscopic analysis to confirm their successful synthesis. In vitro antibacterial activity was evaluated using cultures of methicillin-resistant Staphylococcus aureus (MRSA), and in vivo efficacy was tested in a mouse model of MRSA-infected wounds. Wound healing progression was assessed over 16 days, with statistical analysis performed using two-way ANOVA followed by Tukey's post-hoc test. The nanoparticles demonstrated significant photothermal properties, enhancing bacterial eradication and promoting the controlled release of Tanshinone IIA. In vitro studies showed superior antibacterial activity, especially under photothermal activation, leading to a substantial reduction in bacterial viability in MRSA cultures. In vivo, nanoparticle treatment combined with near-infrared laser irradiation significantly improved wound closure rates compared to controls and treatments without photothermal activation. By the 16th day post-treatment, significant improvements in wound healing were observed, highlighting the potential of the combined photothermal and pharmacological approach. These findings suggest that albumin-loaded nanoparticles containing Tanshinone IIA and IR780, activated by near-infrared light, could offer an effective therapeutic strategy for managing chronic and infected wounds, promoting both infection control and tissue repair.
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Affiliation(s)
- Haidong Chen
- Department of General Surgery, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, Nantong, China
| | - Yimei Li
- Department of General Surgery, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, Nantong, China
| | - Dexuan Chen
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yong Fang
- Department of General Surgery, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, Nantong, China
| | - Xuchu Gong
- Department of General Surgery, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, Nantong, China
| | - Kaikai Wang
- Department of General Surgery, Nantong Hospital Affiliated to Nanjing University of Chinese Medicine, Nantong, China
- School of Pharmacy, Nantong University, Nantong, China
| | - Chaoqun Ma
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
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Khumaidi A, Murwanti R, Damayanti E, Hertiani T. Empirical use, phytochemical, and pharmacological effects in wound healing activities of compounds in Diospyros leaves: A review of traditional medicine for potential new plant-derived drugs. JOURNAL OF ETHNOPHARMACOLOGY 2024; 337:118966. [PMID: 39427738 DOI: 10.1016/j.jep.2024.118966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 09/23/2024] [Accepted: 10/17/2024] [Indexed: 10/22/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Wound healing extracts' activity is increasingly being studied in the field of traditional medicine. Among medicinal plants, Diospyros is known to have healing effects on wounds, along with activities such as anti-biofilm, anti-inflammatory, antibacterial, antioxidant, and regulation of the immune system. However, the current use of the leaves could be more optimal, and the scientific basis needs to be improved. AIM OF THIS REVIEW This review aimed to critically examine the literature on the traditional use and bioactive metabolites of several Diospyros species, demonstrating the significant potential in wound healing, antibacterial, anti-biofilm, regulatory effect on the immune system, anti-inflammatory, and antioxidant activities. The critical analysis was conducted to provide robust perspectives and recommendations for future studies on the use of Diospyros potential resources of wound healing material, including related activities. MATERIALS AND METHODS Exploratory studies on Diospyros species over the past 20 years were examined, with a focus on general information, practical use, secondary metabolite, and pharmacological activities related to wound healing. Data were meticulously collected from scientific databases including Scopus, ScienceDirect, Web of Science, Taylor & Francis, Google Scholar, PubMed as well as various botanical and biodiversity sources. Furthermore, manual searches were conducted to ensure comprehensive coverage. Reference manager software was used to manage articles and remove duplicates, then the gathered data were summarized and verified, ensuring the thoroughness and validity of the review process. RESULTS The results showed that Diospyros leaves have great potential to be harnessed as herbal medications, evidenced by both scientific findings and community uses. Various substances, including flavonoids, coumarins, tannins, terpenoids, steroids, lignans, quinones, and secoiridoids were identified. Chemical compound investigations in both in vivo and in vitro studies of Diospyros leaves reported wound healing activity, as well as antibacterial, anti-inflammatory, anti-biofilm, antioxidant, and immunomodulatory properties. CONCLUSION The review highlights the traditional uses and bioactive metabolites of Diospyros species in wound healing, identifying various beneficial compounds such as flavonoids and tannins. These compounds demonstrate various therapeutic effects, including antibacterial, anti-biofilm, anti-inflammatory, antioxidant, and immunomodulatory activities. Diospyros leaf extracts have a favorable safety profile, but further studies, including in vivo investigations and clinical trials, are necessary to confirm their efficacy and safety for clinical applications. Diospyros leaf extracts have significant potential for the development of wound healing substances due to the wide range of bioactivities targeting various stages of wound healing.
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Affiliation(s)
- Akhmad Khumaidi
- Doctoral Program in Pharmaceutical Science, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia; Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Tadulako, Palu, 94118, Indonesia
| | - Retno Murwanti
- Department of Pharmacology & Clinical Pharmacy, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
| | - Ema Damayanti
- Research Center for Food Technology and Processing, National Research and Innovation Agency (BRIN), Gunungkidul, 55861, Indonesia
| | - Triana Hertiani
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia.
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3
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Duda-Madej A, Viscardi S, Pacyga K, Kupczyński R, Mączka W, Grabarczyk M, Pacyga P, Topola E, Ostrówka M, Bania J, Szumny A, Wińska K. Antibiofilm and Antimicrobial Potentials of Novel Synthesized Sulfur Camphor Derivatives. Int J Mol Sci 2024; 25:10895. [PMID: 39456678 PMCID: PMC11507198 DOI: 10.3390/ijms252010895] [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: 07/30/2024] [Revised: 09/19/2024] [Accepted: 10/07/2024] [Indexed: 10/28/2024] Open
Abstract
The question being posed by scientists around the world is how different chemical modifications of naturally occurring compounds will affect their antimicrobial properties. In the current study, sulfur derivatives of camphor containing a sulfur atom were tested to detect their antimicrobial and antibiofilm potentials. The new compounds were tested on eight Gram-positive strains (S. aureus (3 isolates), S. epidermidis (4 isolates), and E. faecalis (1 isolate)) and eight Gram-negative strains (E. coli (6 isolates), A. baumannii (1 isolate), and P. aeruginosa (1 isolate)). The ability of the strains to eradicate a biofilm was evaluated under standard stationary and flow-through conditions using the Bioflux system. Two synthesized compounds, namely rac-thiocamphor (1a) and (S, S)-(+)-thiocamphor (2a), exhibited an effect on the 24 h biofilm formed by the Gram-positive strains. Our results are an important contribution to the science of natural compounds and allow us to classify our sulfur derivatives of camphor as potential prophylactic agents in treating skin infections, antiseptics, and disinfectants. The Gram-negative strains were excluded from further stages of the tests due to their high activity (MIC ≥ 512 µg/mL). On the other hand, the compound with the strongest antimicrobial activity against the Gram-positive strains was 2a, as it led led to a reductions in cell viability of 17-52% (for MIC), 37-66% (for 2MIC), and 40-94% (for 4MIC). In addition, the experimental retention index of thiocamphor was calculated for the first time.
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Affiliation(s)
- Anna Duda-Madej
- Department of Microbiology, Faculty of Medicine, Wroclaw Medical University, Chałubińskiego 4, 50-368 Wrocław, Poland
| | - Szymon Viscardi
- Faculty of Medicine, Wroclaw Medical University, Ludwika Pasteura 1, 50-367 Wrocław, Poland; (S.V.)
| | - Katarzyna Pacyga
- Department of Environment Hygiene and Animal Welfare, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland (R.K.)
| | - Robert Kupczyński
- Department of Environment Hygiene and Animal Welfare, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland (R.K.)
| | - Wanda Mączka
- Department of Food Chemistry and Biocatalysis, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland; (W.M.); (A.S.); (K.W.)
| | - Małgorzata Grabarczyk
- Department of Food Chemistry and Biocatalysis, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland; (W.M.); (A.S.); (K.W.)
| | - Paweł Pacyga
- Department of Thermodynamics and Renewable Energy Sources, Faculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, 50-370 Wrocław, Poland;
| | - Ewa Topola
- Faculty of Medicine, Wroclaw Medical University, Ludwika Pasteura 1, 50-367 Wrocław, Poland; (S.V.)
| | - Michał Ostrówka
- Faculty of Biotechnology, University of Wrocław, Fryderyka Joliot-Curie 14a, 50-137 Wrocław, Poland;
| | - Jacek Bania
- Department of Food Hygiene and Consumer Health Protection, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland
| | - Antoni Szumny
- Department of Food Chemistry and Biocatalysis, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland; (W.M.); (A.S.); (K.W.)
| | - Katarzyna Wińska
- Department of Food Chemistry and Biocatalysis, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375 Wrocław, Poland; (W.M.); (A.S.); (K.W.)
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Cheon J, Son J, Lim S, Jeong Y, Park JH, Mitchell RJ, Kim JU, Jeong J. Motile bacteria crossing liquid-liquid interfaces of an aqueous isotropic-nematic coexistence phase. SOFT MATTER 2024; 20:7313-7320. [PMID: 39248026 DOI: 10.1039/d4sm00766b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
In nature, bacteria often swim in complex fluids, but our understanding of the interactions between bacteria and complex surroundings is still evolving. In this work, rod-like Bacillus subtilis swims in a quasi-2D environment with aqueous liquid-liquid interfaces, i.e., the isotropic-nematic coexistence phase of an aqueous chromonic liquid crystal. Focusing on the bacteria motion near and at the liquid-liquid interfaces, we collect and quantify bacterial trajectories ranging across the isotropic to the nematic phase. Despite its small magnitude, the interfacial tension of the order of 10 μN m-1 at the isotropic-nematic interface justifies our observations that bacteria swimming more perpendicular to the interface have a higher probability of crossing the interface. Our force-balance model, considering the interfacial tension, further predicts how the length and speed of the bacteria affect their crossing behaviors. Investigating how a phase change affects bacterial motion, we also find, as soon as the bacteria cross the interface and enter the nematic phase, they wiggle less, but faster, and that this occurs as the flagellar bundles aggregate within the nematic phase. Given the ubiquity of multi-phases in biological environments, our findings will help to understand active transport across various phases.
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Affiliation(s)
- Jiyong Cheon
- Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.
| | - Joowang Son
- Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.
| | - Sungbin Lim
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Yundon Jeong
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Jung-Hoon Park
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Robert J Mitchell
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Jaeup U Kim
- Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.
| | - Joonwoo Jeong
- Department of Physics, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.
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Alexandrescu L, Nicoara AD, Tofolean DE, Herlo A, Nelson Twakor A, Tocia C, Trandafir A, Dumitru A, Dumitru E, Aftenie CF, Preotesoiu I, Dina E, Tofolean IT. Healing from Within: How Gut Microbiota Predicts IBD Treatment Success-A Systematic Review. Int J Mol Sci 2024; 25:8451. [PMID: 39126020 PMCID: PMC11313389 DOI: 10.3390/ijms25158451] [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: 07/13/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
Recent research indicates that the microbiome has a significant impact on the progression of inflammatory bowel disease (IBD) and that creating therapies that change its composition could positively impact the outcomes of IBD treatment. This review summarizes the results of extensive studies that examined IBD patients undergoing several therapies, including anti-TNF medication, vedolizumab, ustekinumab, probiotics, and fecal microbiota transplantation (FMT), and the alterations in their gut microbiota's composition and function. The objective was to investigate the variety and effectiveness of microbial species in order to discover new biomarkers or therapeutic targets that could improve the outcome of treatment for these patients. This research aimed to offer useful insights into personalized medicine techniques for managing IBD. Beneficial bacteria such as Faecalibacterium prausnitzii and Roseburia have been consistently linked to favorable clinical outcomes, whereas pathogenic bacteria such as Escherichia coli and Clostridioides difficile are associated with worsening disease conditions. Although many studies have examined the role of gut microbiota in IBD, there is still a need for more targeted research on the connection between specific microbial communities and treatment outcomes. This study sought to address this gap by exploring the intricate relationship between the gut microbiota composition and the effectiveness of IBD medications.
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Affiliation(s)
- Luana Alexandrescu
- Gastroenterology Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania; (L.A.); (C.T.); (A.D.); (E.D.); (E.D.); (I.T.T.)
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
| | - Alina Doina Nicoara
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
- Internal Medicine Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania;
| | - Doina Ecaterina Tofolean
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
- Pneumology Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania
| | - Alexandra Herlo
- Department XIII, Discipline of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Square, 300041 Timisoara, Romania;
| | - Andreea Nelson Twakor
- Internal Medicine Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania;
| | - Cristina Tocia
- Gastroenterology Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania; (L.A.); (C.T.); (A.D.); (E.D.); (E.D.); (I.T.T.)
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
| | - Anamaria Trandafir
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
| | - Andrei Dumitru
- Gastroenterology Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania; (L.A.); (C.T.); (A.D.); (E.D.); (E.D.); (I.T.T.)
| | - Eugen Dumitru
- Gastroenterology Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania; (L.A.); (C.T.); (A.D.); (E.D.); (E.D.); (I.T.T.)
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
- Academy of Romanian Scientist, 3 Ilfov Street, 050044 Bucharest, Romania
| | - Cristian Florentin Aftenie
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
| | - Ionela Preotesoiu
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
| | - Elena Dina
- Gastroenterology Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania; (L.A.); (C.T.); (A.D.); (E.D.); (E.D.); (I.T.T.)
| | - Ioan Tiberiu Tofolean
- Gastroenterology Department, “Sf. Apostol Andrei” Emergency County Hospital, 145 Tomis Blvd., 900591 Constanta, Romania; (L.A.); (C.T.); (A.D.); (E.D.); (E.D.); (I.T.T.)
- Medicine Faculty, “Ovidius” University of Constanta, 1 Universitatii Street, 900470 Constanta, Romania; (D.E.T.); (A.T.); (C.F.A.); (I.P.)
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Liao C, Yu C, Guo J, Guan M. Subinhibitory concentrations of glabridin from Glycyrrhiza glabra L. reduce Listeria monocytogenes motility and hemolytic activity but do not exhibit antimicrobial activity. Front Microbiol 2024; 15:1388388. [PMID: 39086651 PMCID: PMC11288822 DOI: 10.3389/fmicb.2024.1388388] [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: 02/19/2024] [Accepted: 07/02/2024] [Indexed: 08/02/2024] Open
Abstract
Increases in the virulence and survival of some pathogens in the presence of subinhibitory concentrations of antibiotics have been reported. However, research on the effects of subinhibitory concentrations of antimicrobial substances derived from traditional Chinese medicine on pathogens is still insufficient. Glabridin is a well-known active isoflavone found in licorice roots that possesses a wide range of biological activities. Therefore, in this study, Listeria monocytogenes (L. monocytogenes) exposed to subinhibitory concentrations of glabridin was used as the research object. The minimum inhibitory concentration (MIC) was determined for L. monocytogenes. We investigated the impacts of subinhibitory concentrations of glabridin on the morphology, motility, biofilm formation, adherence, and survival of L. monocytogenes. The results indicated that the MIC of glabridin for L. monocytogenes was 31.25 μg/mL. At 1/8, 1/4, or 1/2 of the MIC, glabridin did not affect the growth, morphology, flagellar production, or biofilm formation of L. monocytogenes. However, subinhibitory concentrations of glabridin inhibited bacterial swimming and swarming motility and decreased the hemolytic activity of L. monocytogenes. Glabridin reduced the hemolytic activity of L. monocytogenes culture supernatants. The results also showed that subinhibitory concentrations of glabridin had no toxic effect on RAW264.7 cells but decreased the intracellular growth of L. monocytogenes in RAW264.7 cells. Furthermore, subinhibitory concentrations of glabridin triggered ROS production but did not induce MET formation in macrophages. In addition, glabridin did not enhance the capacity of L. monocytogenes to trigger METs or the extracellular killing of macrophages by METs. Thus, we conclude that subinhibitory concentrations of glabridin reduce L. monocytogenes motility and hemolytic activity but do not exhibit antimicrobial activity. Glabridin could be an interesting food additive as a bacteriostatic agent with anti-Listeria activity.
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Affiliation(s)
- Chengshui Liao
- College of Animal Science and Technology/Laboratory of Functional Microbiology and Animal Health, Henan University of Science and Technology, Luoyang, China
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, Luoyang, China
- The Key Lab of Animal Disease and Public Health, Henan University of Science and Technology, Luoyang, China
| | - Chuan Yu
- Animal Diseases and Public Health Engineering Research Center of Henan Province, Luoyang Polytechnic, Luoyang, China
| | - Jinxiang Guo
- Animal Diseases and Public Health Engineering Research Center of Henan Province, Luoyang Polytechnic, Luoyang, China
| | - Mengxiang Guan
- Animal Diseases and Public Health Engineering Research Center of Henan Province, Luoyang Polytechnic, Luoyang, China
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7
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Duan W, Zhao J, Gao Y, Xu K, Huang S, Zeng L, Shen JW, Zheng Y, Wu J. Porous silicon-based sensing and delivery platforms for wound management applications. J Control Release 2024; 371:530-554. [PMID: 38857787 DOI: 10.1016/j.jconrel.2024.06.019] [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: 03/12/2024] [Revised: 05/28/2024] [Accepted: 06/05/2024] [Indexed: 06/12/2024]
Abstract
Wound management remains a great challenge for clinicians due to the complex physiological process of wound healing. Porous silicon (PSi) with controlled pore morphology, abundant surface chemistry, unique photonic properties, good biocompatibility, easy biodegradation and potential bioactivity represent an exciting class of materials for various biomedical applications. In this review, we focus on the recent progress of PSi in the design of advanced sensing and delivery systems for wound management applications. Firstly, we comprehensively introduce the common type, normal healing process, delaying factors and therapeutic drugs of wound healing. Subsequently, the typical fabrication, functionalization and key characteristics of PSi have been summarized because they provide the basis for further use as biosensing and delivery materials in wound management. Depending on these properties, the rise of PSi materials is evidenced by the examples in literature in recent years, which has emphasized the robust potential of PSi for wound monitoring, treatment and theranostics. Finally, challenges and opportunities for the future development of PSi-based sensors and delivery systems for wound management applications are proposed and summarized. We hope that this review will help readers to better understand current achievements and future prospects on PSi-based sensing and delivery systems for advanced wound management.
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Affiliation(s)
- Wei Duan
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China; Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Jingwen Zhao
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China
| | - Yue Gao
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Keying Xu
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Sheng Huang
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Longhuan Zeng
- Department of Geriatric Medicine, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, PR China
| | - Jia-Wei Shen
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China; Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China.
| | - Yongke Zheng
- Department of Geriatric Medicine, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, PR China.
| | - Jianmin Wu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China.
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8
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Pacher N, Burtscher J, Bender D, Fieseler L, Domig KJ. Aerobic spore-forming bacteria associated with ropy bread: Identification, characterization and spoilage potential assessment. Int J Food Microbiol 2024; 418:110730. [PMID: 38714095 DOI: 10.1016/j.ijfoodmicro.2024.110730] [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: 01/23/2024] [Revised: 04/15/2024] [Accepted: 04/29/2024] [Indexed: 05/09/2024]
Abstract
Aerobic spore-forming (ASF) bacteria have been reported to cause ropiness in bread. Sticky and stringy degradation, discoloration, and an odor reminiscent of rotting fruit are typical characteristics of ropy bread spoilage. In addition to economic losses, ropy bread spoilage may lead to health risks, as virulent strains of ASF bacteria are not uncommon. However, the lack of systematic approaches to quantify physicochemical spoilage characteristics makes it extremely difficult to assess rope formation in bread. To address this problem, the aim of this study was to identify, characterize and objectively assess the spoilage potential of ASF bacteria associated with ropy bread. Hence, a set of 82 ASF bacteria, including isolates from raw materials and bakery environments as well as strains from international culture collections, were identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) and their species identity confirmed by 16S rRNA and gyrA or panC gene sequencing. A standardized approach supported by objective colorimetric measurements was developed to assess the rope-inducing potential (RIP) of a strain by inoculating autoclaved bread slices with bacterial spores. In addition, the presence of potential virulence factors such as swarming motility or hemolysis was investigated. This study adds B. velezensis, B. inaquosorum and B. spizizenii to the species potentially implicated of causing ropy bread spoilage. Most importantly, this study introduces a standardized classification protocol for assessing the RIP of a bacterial strain. Colorimetric measurements are used to objectively quantify the degree of breadcrumb discoloration. Furthermore, our results indicate that strains capable of inducing rope spoilage in bread often exhibit swarming motility and virulence factors such as hemolysis, raising important food quality considerations.
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Affiliation(s)
- Nicola Pacher
- University of Natural Resources and Life Sciences, Vienna, Department of Food Science and Technology, Institute of Food Science, Muthgasse 18, 1190 Vienna, Austria
| | - Johanna Burtscher
- University of Natural Resources and Life Sciences, Vienna, Department of Food Science and Technology, Institute of Food Science, Muthgasse 18, 1190 Vienna, Austria.
| | - Denisse Bender
- University of Natural Resources and Life Sciences, Vienna, Department of Food Science and Technology, Institute of Food Science, Muthgasse 18, 1190 Vienna, Austria
| | - Lars Fieseler
- ZHAW Zurich University of Applied Sciences, Institute of Food and Beverage Innovation, Einsiedlerstrasse 31, 8820 Wädenswil, Switzerland
| | - Konrad J Domig
- University of Natural Resources and Life Sciences, Vienna, Department of Food Science and Technology, Institute of Food Science, Muthgasse 18, 1190 Vienna, Austria
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Correia AAV, de Almeida Campos LA, de Queiroz Macêdo HLR, de Lacerda Coriolano D, Agreles MAA, Xavier DE, de Siqueira Ferraz-Carvalho R, de Andrade Aguiar JL, Cavalcanti IMF. Antibacterial and Antibiofilm Potential of Bacterial Cellulose Hydrogel Containing Vancomycin against Multidrug-Resistant Staphylococcus aureus and Staphylococcus epidermidis. BIOLOGY 2024; 13:354. [PMID: 38785836 PMCID: PMC11118175 DOI: 10.3390/biology13050354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
The present study aimed to evaluate the in vitro antibacterial and antibiofilm activity of bacterial cellulose hydrogel produced by Zoogloea sp. (HYDROGEL) containing vancomycin (VAN) against bacterial strains that cause wound infections, such as multidrug-resistant (MDR) Staphylococcus aureus and Staphylococcus epidermidis. Initially, HYDROGEL was obtained from sugar cane molasses, and scanning electron microscopy (SEM) was performed to determine morphological characteristics. Then, VAN was incorporated into HYDROGEL (VAN-HYDROGEL). The antibacterial activity of VAN, HYDROGEL, and VAN-HYDROGEL was assessed using the broth microdilution method to determine the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) against methicillin-sensitive S. aureus (MSSA) ATCC 25923, methicillin-resistant S. aureus (MRSA) ATCC 33591, S. epidermidis INCQS 00016 (ATCC 12228), five clinical isolates of MRSA, and nine clinical isolates of methicillin-resistant S. epidermidis, following the Clinical and Laboratory Standards Institute (CLSI) guidelines. Additionally, the antibacterial activity of VAN, HYDROGEL, and VAN-HYDROGEL was studied using the time-kill assay. Subsequently, the antibiofilm activity of VAN, HYDROGEL, and VAN-HYDROGEL was evaluated using crystal violet and Congo red methods, as well as SEM analysis. VAN and VAN-HYDROGEL showed bacteriostatic and bactericidal activity against MRSA and methicillin-resistant S. epidermidis strains. HYDROGEL did not show any antibacterial activity. Analysis of the time-kill assay indicated that HYDROGEL maintained the antibacterial efficacy of VAN, highlighting its efficiency as a promising carrier. Regarding antibiofilm activity, VAN and HYDROGEL inhibited biofilm formation but did not demonstrate biofilm eradication activity against methicillin-resistant S. aureus and S. epidermidis strains. However, it was observed that the biofilm eradication potential of VAN was enhanced after incorporation into HYDROGEL, a result also proven through images obtained by SEM. From the methods carried out in this study, it was possible to observe that HYDROGEL preserved the antibacterial activity of vancomycin, aside from exhibiting antibiofilm activity and enhancing the antibiofilm effect of VAN. In conclusion, this study demonstrated the potential of HYDROGEL as a candidate and/or vehicle for antibiotics against MDR bacteria that cause wound infections.
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Affiliation(s)
| | | | | | | | | | - Danilo Elias Xavier
- Department of Microbiology, Aggeu Magalhães Institute, FIOCRUZ-PE, Recife 50740-465, Brazil
| | | | | | - Isabella Macário Ferro Cavalcanti
- Keizo Asami Institute (iLIKA), Federal University of Pernambuco (UFPE), Recife 50670-901, Brazil
- Laboratory of Microbiology and Immunology, Academic Center of Vitória (CAV), Federal University of Pernambuco (UFPE), Vitória de Santo Antão 55608-680, Brazil
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Li K, Yu K, Huang Z, Liu X, Mei L, Ren X, Bai X, Gao H, Sun Z, Liu X, Wang D. Stenotrophomonas maltophilia complex: insights into evolutionary relationships, global distribution and pathogenicity. Front Cell Infect Microbiol 2024; 13:1325379. [PMID: 38268792 PMCID: PMC10806987 DOI: 10.3389/fcimb.2023.1325379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 12/21/2023] [Indexed: 01/26/2024] Open
Abstract
Introduction Stenotrophomonas maltophilia complex (Smc) comprises opportunistic Gram-negative bacilli responsible for various nosocomial infections. Limited data exists concerning its evolutionary lineage, global prevalence and pathogenicity. Methods We conducted an extensive genomic analysis on 734 Smc genomes, of which 90 were newly sequenced and isolated from different patients. The species composition and evolutionary relationships of Smc were examined using core protein sequence analysis. Pathogenicity evaluation was used by assays for swimming motility, biofilm formation and identification of virulence factors. The broth microdilution method was used to evaluate the drug resistance spectrum of clinical isolates. Results Phylogenetic analyses delineated 24 species-level clades, dominated by S. maltophilia (42.8%), S. sepilia (13.6%) and S. geniculata (9.9%). Geographically, strains were primarily distributed in Europe (34.2%), Asia (33.7%) and North America (24.0%), with intricate global distribution patterns. Meanwhile, 154 virulence-associated genes and 46 antimicrobial resistance genes within Smc were identified. These genes encoded span various functions, including motility, adherence, toxin, RND antibiotic efflux pumps, beta-lactamases and aminoglycoside-modifying enzymes. Moreover, significant variations were indicated in swimming motility and biofilm-forming capability across the different species, with S. sepilia exhibiting superior levels of both traits. Additionally, no statistically significant discrepancy was detected among Smc species to other antibiotics, despite the fact that all S. geniculata isolates were resistant to Ceftazidime and much higher than other species. Conclusion Our findings indicate the need to pay increased attention to other mainstream species of Smc besides S. maltophilia in order to better manage Smc-related infections and tailor effective treatment strategies.
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Affiliation(s)
- Kun Li
- School of Public Health, Lanzhou University, Lanzhou, China
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Keyi Yu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhenzhou Huang
- Microbiology Laboratory, Hangzhou Center for Disease Control and Prevention, Hangzhou, China
| | - Xiao Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Li Mei
- National Pathogen Resource Center, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaodong Ren
- School of Public Health, Lanzhou University, Lanzhou, China
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xuemei Bai
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - He Gao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhiwen Sun
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaoning Liu
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Duochun Wang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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Sun X, Liang H, Wang H, Meng N, Jin S, Zhou N. Silk fibroin/polyvinyl alcohol composite film loaded with antibacterial AgNP/polydopamine-modified montmorillonite; characterization and antibacterial properties. Int J Biol Macromol 2023; 251:126368. [PMID: 37591434 DOI: 10.1016/j.ijbiomac.2023.126368] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 08/19/2023]
Abstract
In this study, a kind of nanocomposite film was fabricated via combining silk fibroin, polyvinyl alcohol (SF/PVA) and AgNP/polydopamine-modified Montmorillonite (AgNP/PDA-Mt). The structural characteristics and properties of the SF/PVA/AgNP/PDA-Mt nanocomposites films were identified using X-ray diffraction (XRD), Thermal gravimetric analyzer (TGA), Fourier transform infrared spectroscopy (FTIR), EDS-mapping analyses and Scanning electron microscope (SEM). The results indicated enhanced thermal performance of SF/PVA/AgNP/PDA-Mt nanocomposites with increased AgNP/PDA-Mt weight. The nanocomposite film exhibited excellent antibacterial activity against E. coli and S. aureus. The 2 % SF/PVA/AgNP/PDA-Mt film showed the highest zone of inhibition with an average inhibition circle diameter of 26.1 mm against E. coli and 20.61 mm against S. aureus. Cytotoxicity test results indicated that the nanocomposites films were biocompatible with L929 cells with a 100 % survival rate, which can be considered as one of the advantages of new nanocomposites films. These findings suggest that SF/PVA/AgNP/PDA-Mt films have potential clinical applications in wound dressing and antibacterial biomedical applications.
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Affiliation(s)
- Xuemei Sun
- School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china
| | - Han Liang
- School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china
| | - Huiyan Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china
| | - Na Meng
- School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china.
| | - Suxing Jin
- School of Food Science and Pharmaceutical Engineering, Nanjing normal university, Nanjing, PR china.
| | - Ninglin Zhou
- Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing Normal University, Nanjing 210046, China; Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China.
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12
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Wang Y, Jin Y, Sun F, Zhang Y, Liu Q, Wang Q, Yang D, Zhang Y. The c-di-GMP signalling component YfiR regulates multiple bacterial phenotypes and virulence in Pseudomonas plecoglossicida. J Appl Microbiol 2023; 134:lxad157. [PMID: 37500265 DOI: 10.1093/jambio/lxad157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/12/2023] [Accepted: 07/26/2023] [Indexed: 07/29/2023]
Abstract
AIMS Pseudomonas plecoglossicida (P. plecoglossicida) is the causative agent of visceral granulomas disease in large yellow croaker (Larimichthys crocea) and it causes severe economic loss to its industry. Biofilm formation, related to intracellular cyclic bis (3'-5') diguanylic acid (c-di-GMP) levels, is essential for the lifestyle of P. plecoglossicida. This research aims to investigate the role of YfiR-a key regulator of the diguanylate cyclase YfiN to regulate c-di-GMP levels and reveal its regulatory function of bacterial virulence expression in P. plecoglossicida. METHODS AND RESULTS A genetic analysis was carried out to identify the yfiBNR operon for c-di-GMP regulation in P. plecoglossicida. Then, we constructed a yfiR mutant and observed increased c-di-GMP levels, enhanced biofilm formation, increased exopolysaccharides, and diminished swimming and swarming motility in this strain. Moreover, through establishing a yolk sac microinjection infection model in zebrafish larvae, an attenuated phenotype of yfiR mutant that manifested as restored survival and lower bacterial colonization was found. CONCLUSIONS YfiR is the key regulator of virulence in P. plecoglossicida, which contributes to c-di-GMP level, biofilm formation, exopolysaccharides production, swimming, swarming motility, and bacterial colonization in zebrafish model.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Yinhua Jin
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Fei Sun
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Yuanxing Zhang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
- Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
| | - Qin Liu
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
- Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
| | - Qiyao Wang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
| | - Dahai Yang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
| | - Yibei Zhang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
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