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Alzahrani DA, Alsulami KA, Alsulaihem FM, Bakr AA, Booq RY, Alfahad AJ, Aodah AH, Alsudir SA, Fathaddin AA, Alyamani EJ, Almomen AA, Tawfik EA. Dual Drug-Loaded Coaxial Nanofiber Dressings for the Treatment of Diabetic Foot Ulcer. Int J Nanomedicine 2024; 19:5681-5703. [PMID: 38882541 PMCID: PMC11179665 DOI: 10.2147/ijn.s460467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/21/2024] [Indexed: 06/18/2024] Open
Abstract
Introduction Diabetes mellitus is frequently associated with foot ulcers, which pose significant health risks and complications. Impaired wound healing in diabetic patients is attributed to multiple factors, including hyperglycemia, neuropathy, chronic inflammation, oxidative damage, and decreased vascularization. Rationale To address these challenges, this project aims to develop bioactive, fast-dissolving nanofiber dressings composed of polyvinylpyrrolidone loaded with a combination of an antibiotic (moxifloxacin or fusidic acid) and anti-inflammatory drug (pirfenidone) using electrospinning technique to prevent the bacterial growth, reduce inflammation, and expedite wound healing in diabetic wounds. Results The fabricated drug-loaded fibers exhibited diameters of 443 ± 67 nm for moxifloxacin/pirfenidone nanofibers and 488 ± 92 nm for fusidic acid/pirfenidone nanofibers. The encapsulation efficiency, drug loading and drug release studies for the moxifloxacin/pirfenidone nanofibers were found to be 70 ± 3% and 20 ± 1 µg/mg, respectively, for moxifloxacin, and 96 ± 6% and 28 ± 2 µg/mg, respectively, for pirfenidone, with a complete release of both drugs within 24 hours, whereas the fusidic acid/pirfenidone nanofibers were found to be 95 ± 6% and 28 ± 2 µg/mg, respectively, for fusidic acid and 102 ± 5% and 30 ± 2 µg/mg, respectively, for pirfenidone, with a release rate of 66% for fusidic acid and 80%, for pirfenidone after 24 hours. The efficacy of the prepared nanofiber formulations in accelerating wound healing was evaluated using an induced diabetic rat model. All tested formulations showed an earlier complete closure of the wound compared to the controls, which was also supported by the histopathological assessment. Notably, the combination of fusidic acid and pirfenidone nanofibers demonstrated wound healing acceleration on day 8, earlier than all tested groups. Conclusion These findings highlight the potential of the drug-loaded nanofibrous system as a promising medicated wound dressing for diabetic foot applications.
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Affiliation(s)
- Dunia A Alzahrani
- Advanced Diagnostics and Therapeutics Technologies Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Khulud A Alsulami
- Advanced Diagnostics and Therapeutics Technologies Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Fatemah M Alsulaihem
- Advanced Diagnostics and Therapeutics Technologies Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Abrar A Bakr
- Advanced Diagnostics and Therapeutics Technologies Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Rayan Y Booq
- Wellness and Preventative Medicine Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Ahmed J Alfahad
- Waste Management and Recycling Technologies Institute, Sustainability and Environment Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Alhassan H Aodah
- Advanced Diagnostics and Therapeutics Technologies Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Samar A Alsudir
- Bioengineering Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Amany A Fathaddin
- Department of Pathology, College of Medicine, King Saud University, Riyadh, 12372, Saudi Arabia
- King Saud University Medical City, Riyadh, 12372, Saudi Arabia
| | - Essam J Alyamani
- Wellness and Preventative Medicine Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Aliyah A Almomen
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Essam A Tawfik
- Advanced Diagnostics and Therapeutics Technologies Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
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Liang M, Liu X, Chen Q, Zeng B, Wang L. NMGMDA: a computational model for predicting potential microbe-drug associations based on minimize matrix nuclear norm and graph attention network. Sci Rep 2024; 14:650. [PMID: 38182635 PMCID: PMC10770326 DOI: 10.1038/s41598-023-50793-y] [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: 09/18/2023] [Accepted: 12/26/2023] [Indexed: 01/07/2024] Open
Abstract
The prediction of potential microbe-drug associations is of great value for drug research and development, especially, methods, based on deep learning, have been achieved significant improvement in bio-medicine. In this manuscript, we proposed a novel computational model named NMGMDA based on the nuclear norm minimization and graph attention network to infer latent microbe-drug associations. Firstly, we created a heterogeneous microbe-drug network in NMGMDA by fusing the drug and microbe similarities with the established drug-microbe associations. After this, by using GAT and NNM to calculate the predict scores. Lastly, we created a fivefold cross validation framework to assess the new model NMGMDA's progressiveness. According to the simulation results, NMGMDA outperforms some of the most advanced methods, with a reliable AUC of 0.9946 on both MDAD and aBioflm databases. Furthermore, case studies on Ciprofloxacin, Moxifoxacin, HIV-1 and Mycobacterium tuberculosis were carried out in order to assess the effectiveness of NMGMDA even more. The experimental results demonstrated that, following the removal of known correlations from the database, 16 and 14 medications as well as 19 and 17 microbes in the top 20 predictions were validated by pertinent literature. This demonstrates the potential of our new model, NMGMDA, to reach acceptable prediction performance.
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Affiliation(s)
- Mingmin Liang
- School of Information Engineering, Hunan Vocational College of Electronic and Technology, Changsha, 410000, China
| | - Xianzhi Liu
- School of Information Engineering, Hunan Vocational College of Electronic and Technology, Changsha, 410000, China
| | - Qijia Chen
- School of Information Engineering, Hunan Vocational College of Electronic and Technology, Changsha, 410000, China.
| | - Bin Zeng
- School of Information Engineering, Hunan Vocational College of Electronic and Technology, Changsha, 410000, China.
| | - Lei Wang
- School of Information Engineering, Hunan Vocational College of Electronic and Technology, Changsha, 410000, China.
- Big Data Innovation and Entrepreneurship Education Center of Hunan Province, Changsha University, Changsha, 410022, China.
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Thakur M, Khushboo, Kumar Y, Yadav V, Pramanik A, Dubey KK. Understanding resistance acquisition by Pseudomonas aeruginosa and possible pharmacological approaches in palliating its pathogenesis. Biochem Pharmacol 2023; 215:115689. [PMID: 37481132 DOI: 10.1016/j.bcp.2023.115689] [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: 05/06/2023] [Revised: 07/03/2023] [Accepted: 07/12/2023] [Indexed: 07/24/2023]
Abstract
Pseudomonas aeruginosa can utilize various virulence factors necessary for host infection and persistence. These virulence factors include pyocyanin, proteases, exotoxins, 2-heptyl-4-hydroxyquinoline N-oxide (HQNO), phospholipases, and siderophores that enable the bacteria to cause severe infections in immunocompromised individuals. P. aeruginosa falls into the category of nosocomial pathogens that are typically resistant to available antibiotics and therapeutic approaches. P. aeruginosa bio-film formation is a major concern in hospitals because it can cause chronic infection and increase the risk of mortality. Therefore, the development of new strategies to disrupt biofilm formation and improve antibiotic efficacy for the treatment of P. aeruginosa infections is crucial. Anti-biofilm and anti-quorum sensing (QS) activity can be viewed as an anti-virulence approach to control the infectious nature of P. aeruginosa. Inhibition of QS and biofilm formation can be achieved through pharmacological approaches such as phytochemicals and essential oils, which have shown promising results in laboratory studies. A regulatory protein called LasR plays a key role in QS signaling to coordinate gene expression. Designing an antagonist molecule that mimics the natural autoinducer might be the best approach for LasR inhibition. Here we reviewed the mechanism behind antibiotic resistance and alternative approaches to combat the pathogenicity of P. aeruginosa.
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Affiliation(s)
- Mony Thakur
- Department of Microbiology, Central University of Haryana, Mahendergarh, Haryana 123031, India
| | - Khushboo
- Department of Biotechnology, Central University of Haryana, Mahendergarh, Haryana 123031, India
| | - Yatin Kumar
- Department of Microbiology, Central University of Haryana, Mahendergarh, Haryana 123031, India
| | - Vinod Yadav
- Department of Microbiology, Central University of Haryana, Mahendergarh, Haryana 123031, India
| | - Avijit Pramanik
- Department of Microbiology, Central University of Haryana, Mahendergarh, Haryana 123031, India
| | - Kashyap Kumar Dubey
- Biomanufacturing and Process Development Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi-67, India.
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Yin M, Li J, Huang L, Li Y, Yuan M, Luo Y, Armato U, Zhang L, Wei Y, Li Y, Deng J, Wang P, Wu J. Identification of microbes in wounds using near-infrared spectroscopy. Burns 2022; 48:791-798. [PMID: 34862090 DOI: 10.1016/j.burns.2021.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 08/16/2021] [Accepted: 09/02/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Rapid diagnosis of microbes in the burn wound is a big challenge in the medical field. Traditional biochemical detection techniques take hours or days to identify the species of contaminating and drug-resistant microbes. Near-infrared spectroscopy (NIRS) is evaluated to address the need for a fast and sensitive method for the detection of bacterial contamination in liquids. METHODS Herin, we developed a novel technique which by using NIRS together with supporting vector machine (SVM), to identify the microbial species and drug-resistant microbes in LB medium, and to diagnose the wound colonization and wound infection models of pigs. RESULTS The device could recognize 100% of seven kinds of microbes and 99.47% of the multi-drug resistant Staphylococcus aureus (S. aureus), with a concentration of 109 cfu ml-1 in LB medium. The accuracy of the microbial identification in colonized and infected wounds in-situ was 100%. The detection limit of NIRS with SVM for the detection of S. aureus and Escherichia coli (E. coli) was 101 cfu ml-1 in LB medium. Identification time was less than 5 s. CONCLUSION Our findings validate for the first time a novel technique aimed at the rapid, noncontacted, highly sensitive, and specific recognition of several microbial species including drug-resistant ones. This technique could represent a promising approach to identify diverse microbial species and a potential bedside device to rapidly diagnose infected wounds.
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Affiliation(s)
- Meifang Yin
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Jiangfeng Li
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Lixian Huang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan, China
| | - Yongming Li
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China
| | - Mingzhou Yuan
- Department of Burn Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yongquan Luo
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan, China
| | - Ubaldo Armato
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China; Human Histology and Embryology Unit, University of Verona Medical School, Strada Le Grazie 8, Verona, Italy
| | - Lijun Zhang
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Yating Wei
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Yuanyuan Li
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Jiawen Deng
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Pin Wang
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China.
| | - Jun Wu
- Department of Burn and Plastic Surgery, Institute Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China.
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Bhardwaj S, Bhatia S, Gupta PS, Singh S. Thiazole derivative based topical nanoemulgel for inhibition of bacterial virulence in surface infections. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:352-363. [PMID: 35656177 PMCID: PMC9148408 DOI: 10.22038/ijbms.2022.59419.13192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 01/24/2022] [Indexed: 11/06/2022]
Abstract
Objectives Antimicrobial resistance emerged as a global challenge owing to limited therapeutic options to control infections. Pseudomonas aeruginosa, an MDR pathogen already developed resistance against many conventional antibiotics. An "anti-virulence strategy" that targets bacterial virulence rather than growth proves effective against drug-resistant pathogens. Materials and Methods Here, we used a structure-based drug design approach to identify lead molecules using the LasR receptor protein of P. aeruginosa as a target responsible for virulence production in this bacterium. From the identified hits, we developed lead-based nanoformulation and investigated its effectiveness for treating the P. aeruginosa associated surface-infection in-vivo. First, TC-based nanoemulsions were fabricated by high-pressure homogenization and evaluated for various in vitro parameters. The optimized nanoemulsions were thereby utilized to prepare NEG. Results The nanoemulsion (F3) exhibited low droplet size (51.04±1.88 nm), PDI (0.065±1.14), and negative zeta potential (-33.65±0.82 mV). In animals, topical application of NEG-3 demonstrated significant improvement on skin permeability (459±10.17 µg), drug influx (18.99±0.76 μg/cm2 hr), and repressed the CFU of P. aeruginosa induced-surface infection (P≤ 0.001). The histology of rat skin demonstrated a significant effect for groups treated with TC-based NEGs as compared with a negative control group, whereas no significant effect was seen on rat liver indicating low systemic exposure to the drug. Also, NEG3 showed no significant changes under different stability conditions after 3 months. Conclusion TC-based NEGs open up the possibility of a more effective way to combat serious surface infections caused by P. aeruginosa.
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Affiliation(s)
- Snigdha Bhardwaj
- Department of Pharmaceutical Science, SHALOM Institute of Health and Allied Sciences, Sam Higginbottom University of Agriculture
- Technology and Sciences (SHUATS), Naini, Prayagraj, India
| | - Sonam Bhatia
- Department of Pharmaceutical Science, SHALOM Institute of Health and Allied Sciences, Sam Higginbottom University of Agriculture
| | - Pushpraj S. Gupta
- Department of Pharmaceutical Science, SHALOM Institute of Health and Allied Sciences, Sam Higginbottom University of Agriculture
- These authors contributed equally to this work
| | - Shaminder Singh
- I.T.S College of Pharmacy, Murad Nagar, Ghaziabad, U.P. (201206), India
- These authors contributed equally to this work
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Hameed M, Rasul A, Latif S, Rasool M, Abbas G, Siddique MI, Waqas MK, Khan IU, Yousaf AM, Shah PA. Fabrication of moxifloxacin HCl-loaded biodegradable chitosan nanoparticles for potential antibacterial and accelerated cutaneous wound healing efficacy. J Microencapsul 2021; 39:37-48. [PMID: 34919007 DOI: 10.1080/02652048.2021.2019332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AIM This work aims to formulate topical hybrid gel containing chitosan-coated moxifloxacin (MXF) HCl nanoparticles (NPs) with enhanced antibacterial and healing activity. METHODS MXF HCl NPs prepared by the ionic gelation method were loaded onto a hybrid chitosan carbomer gel. Size analysis of the prepared NPs was performed using SEM and Zeta-sizer. Further characterisation was done using Fourier transforms infra-red spectroscopy (FTIR), X-ray diffraction (XRD), and Thermogravimetric analysis (TGA). Prepared gel was evaluated for its in vitro drug release, biocompatibility, antibacterial activity, and stability studies under storage conditions. In-vivo wound healing was measured by observing percentage reduction in wound. RESULTS NPs have 359 ± 79 nm mean particle size, 31.01 mV zeta potential with 0.008 polydispersity index (PD1), 63.5% drug entrapment and 83 ± 3.5% drug release at pH 5.5. Hybrid chitosan carbomer gel showed good biocompatibility, antibacterial, in-vivo wound healing properties and stable properties. CONCLUSIONS NP-loaded hybrid gel can be an effective treatment for acute and challenged topical wounds.
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Affiliation(s)
- Misbah Hameed
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan.,Faculty of Pharmaceutical and Allied Health Sciences, Institute of Pharmacy, Lahore College for Women University, Lahore, Pakistan
| | - Akhtar Rasul
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sumera Latif
- Faculty of Pharmaceutical and Allied Health Sciences, Institute of Pharmacy, Lahore College for Women University, Lahore, Pakistan
| | - Maria Rasool
- Faculty of Medicine and Allied Sciences, College of Allied Health Professionals, Government College University, Faisalabad, Pakistan
| | - Ghulam Abbas
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Irfan Siddique
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Khurram Waqas
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Ikram Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
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Moon SH, Kaufmann Y, Fujiwara R, Huang E. Enzymatically-crosslinked gelatin hydrogels containing paenipeptin and clarithromycin against carbapenem-resistant pathogen in murine skin wound infection. BMC Microbiol 2021; 21:326. [PMID: 34819026 PMCID: PMC8611911 DOI: 10.1186/s12866-021-02383-z] [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: 03/30/2021] [Accepted: 10/26/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The recent rise and spread of carbapenem-resistant pathogens pose an urgent threat to public health and has fueled the search for new therapies. Localized delivery of topical antibiotics is an alternative for the treatment of infected wounds caused by drug-resistant pathogens. In this study, we aimed to develop antimicrobial-loaded hydrogels for topical treatment of wound infections in a murine skin wound infection. RESULTS Paenipeptin analogue 1, a linear lipopeptide, potentiated clarithromycin against multidrug-resistant Acinetobacter baumannii, Enterobacter cloacae, Escherichia coli, and Klebsiella pneumoniae. Enzymatically-crosslinked gelatin hydrogels were developed to encapsulate paenipeptin analogue 1 and clarithromycin. The encapsulated antimicrobials were gradually released from hydrogels during incubation, reaching 75.43 and 53.66% for paenipeptin and clarithromycin, respectively, at 24 h. The antimicrobial-loaded hydrogels containing paenipeptin and clarithromycin synergistically resulted in 5-log reduction in carbapenem-resistant A. baumannii within 6 h in vitro. Moreover, the antimicrobial-loaded hydrogels reduced 3.6- and 2.5-log of carbapenem-resistant A. baumannii when treated at 4 or 20 h post infection, respectively, in a murine skin wound infection. CONCLUSIONS Enzymatically-crosslinked gelatin hydrogels loaded with paenipeptin analogue 1 and clarithromycin exhibited potent therapeutic efficacy against carbapenem-resistant A. baumannii in murine skin wound infection.
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Affiliation(s)
- Sun Hee Moon
- grid.241054.60000 0004 4687 1637Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR 72205 USA
| | - Yihong Kaufmann
- grid.241054.60000 0004 4687 1637Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR 72205 USA
| | - Ryoichi Fujiwara
- grid.241054.60000 0004 4687 1637Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR 72205 USA
| | - En Huang
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR, 72205, USA.
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Bobrov AG, Getnet D, Swierczewski B, Jacobs A, Medina-Rojas M, Tyner S, Watters C, Antonic V. Evaluation of Pseudomonas aeruginosa pathogenesis and therapeutics in military-relevant animal infection models. APMIS 2021; 130:436-457. [PMID: 34132418 DOI: 10.1111/apm.13119] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 01/21/2021] [Indexed: 01/02/2023]
Abstract
Modern combat-related injuries are often associated with acute polytrauma. As a consequence of severe combat-related injuries, a dysregulated immune response results in serious infectious complications. The gram-negative bacterium Pseudomonas aeruginosa is an opportunistic pathogen that often causes life-threatening bloodstream, lung, bone, urinary tract, and wound infections following combat-related injuries. The rise in the number of multidrug-resistant P. aeruginosa strains has elevated its importance to civilian clinicians and military medicine. Development of novel therapeutics and treatment options for P. aeruginosa infections is urgently needed. During the process of drug discovery and therapeutic testing, in vivo testing in animal models is a critical step in the bench-to-bedside approach, and required for Food and Drug Administration approval. Here, we review current and past literature with a focus on combat injury-relevant animal models often used to understand infection development, the interplay between P. aeruginosa and the host, and evaluation of novel treatments. Specifically, this review focuses on the following animal infection models: wound, burn, bone, lung, urinary tract, foreign body, and sepsis.
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Affiliation(s)
- Alexander G Bobrov
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Derese Getnet
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Brett Swierczewski
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Anna Jacobs
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Maria Medina-Rojas
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Stuart Tyner
- US Army Medical Research and Development Command Military Infectious Diseases Research Program, Frederick, Maryland, USA
| | - Chase Watters
- Naval Medical Research Unit-3, Ghana Detachment, Accra, Ghana
| | - Vlado Antonic
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
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Shariati A, Moradabadi A, Ghaznavi-Rad E, Dadmanesh M, Komijani M, Nojoomi F. Investigation into antibacterial and wound healing properties of platelets lysate against Acinetobacter baumannii and Klebsiella pneumoniae burn wound infections. Ann Clin Microbiol Antimicrob 2021; 20:40. [PMID: 34044843 PMCID: PMC8161565 DOI: 10.1186/s12941-021-00442-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/07/2021] [Indexed: 12/12/2022] Open
Abstract
Background and aim Treatment of burn wound infections has become a global challenge due to the spread of multidrug-resistant bacteria; therefore, the development of new treatment options for the mentioned infections is essential. Platelets have drawn much attention for this purpose because they are a safe and cost-effective source of different antimicrobial peptides and growth factors. The present study evaluated antibacterial effects and wound healing properties of Platelet-derived Biomaterial (PdB) against Acinetobacter baumannii and Klebsiella pneumoniae burn wound infections. Methods PdB was prepared through the freezing and thawing process and then, in vitro antibacterial effect was determined by disk diffusion and broth microdilution methods. Afterward, burn wound was inflicted on 56 rats, infected with both bacteria, and topical administration was performed to evaluate antibacterial effects and wound healing properties of PdB. Results In vitro results showed that PdB inhibited the growth of A. baumannii in the highest dose (0.5), while we did not detect any inhibitory effects against K. pneumoniae. By contrast, PdB significantly inhibited the growth of bacteria in treated animal wounds compared to the control groups (P value < 0.05). Macroscopic assessments pointed to the significant enhancement of wound closure in the treated animals. In addition, histopathological examination demonstrated that treatment of rats with PdB led to a considerable increase in re-epithelialization and attenuated the formation of granulation tissue (P value < 0.05). Conclusion The use of topical PdB is an attractive strategy for treating A. baumannii and K. pneumoniae burn wound infections because it inhibits bacterial growth and promotes wound healing properties.
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Affiliation(s)
- Aref Shariati
- Microbiology Department, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Alireza Moradabadi
- Department of Medical Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran
| | - Ehsanollah Ghaznavi-Rad
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Arak University of Medical Sciences, Arak, Iran
| | - Maryam Dadmanesh
- Infectious Diseases Research Center, Aja University of Medical Sciences, Tehran, Iran.,Department of Infectious Diseases, School of Medicine, Aja University of Medical Sciences, Tehran, IR, Iran
| | - Majid Komijani
- Department of Biology, Faculty of Science, Arak University, 38156-8-8349, Arak, Iran
| | - Farshad Nojoomi
- Microbiology Department, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran.
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Topaz M, Ashkenazi I, Barzel O, Biswas S, Atar D, Shadmi N, Siev-Ner I. Minimizing treatment complexity of combat-related soft tissue injuries using a dedicated tension relief system and negative pressure therapy augmented by high-dose in situ antibiotic therapy and oxygen delivery: a retrospective study. BURNS & TRAUMA 2021; 9:tkab007. [PMID: 34212059 PMCID: PMC8240532 DOI: 10.1093/burnst/tkab007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/28/2020] [Indexed: 06/13/2023]
Abstract
BACKGROUND Following combat-related, extensive soft tissue injury from gunshot wounds or blasts, prolonged duration from injury to full wound closure is associated with infection, increased morbidity and mortality, failure to mobilize, poor functional outcome and increased cost. The purpose of this study was to evaluate a novel treatment enabling early primary closure of combat wounds. METHODS This was a retrospective study of 10 soldiers and civilians with extensive combat-related soft tissue limb injuries (5 gunshot wounds, 5 blasts) treated using the TopClosure® Tension Relief System (TRS) with simultaneous administration of regulated oxygen-enriched and irrigation negative pressure-assisted wound therapy (ROINPT) via the Vcare α® device. RESULTS Nine patients were treated during the acute phase of injury and one was treated following removal of a flap due to deep infection 20 years after injury and flap reconstruction. Two patients had upper limb injury and the rest lower limb injury. With the aid of the TRS and/or ROINPT, immediate primary closure during reconstruction was achieved in 6 patients and delayed primary closure in three. Only one patient required a skin graft to close a small area of the wound after most of the wound had been closed by delayed primary closure. Wound closure was achieved within 0-37 days (median: 12.5 days, interquartile range: 2.75-19.75) from injury. CONCLUSIONS The TRS is a novel device for effective, early skin stretching and secure wound closure through the application of stress relaxation and mechanical creep, achieving primary closure of large defects using a simplified surgical technique and reducing the need for closure using skin grafts and flaps and the use of tissue expanders. Delivering supplemental oxygen to the wound by ROINPT reverses the reduced oxygen levels inherent in conventional negative pressure-assisted wound therapy, mitigating anaerobic contamination and reducing infection. Irrigation may accelerate the evacuation of infectious material from the wound and provide a novel method for antibiotic administration. The combination of TRS and ROINPT devices allow for early primary closure with improved functionality of combat-related limb injuries.
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Affiliation(s)
- Moris Topaz
- Sheba Medical Center, Ramat Gan, Israel
- Hillel Yaffe Medical Center, Hadera, Israel
| | | | | | | | - Dan Atar
- Soroka Medical Center, Beer Sheva, Israel
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Jafari H, Ramezani V, Nabi-Meibodi M, Ranjbar AM. Development of Novel Adhesive Bilayer Lyophilized Wafer of Moxifloxacin as a Modern Wound Dressing. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2021; 20:271-284. [PMID: 34903988 PMCID: PMC8653684 DOI: 10.22037/ijpr.2021.112962.14081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Wound healing is a complex process and is influenced by different factors. Aimed to enhance the wound healing procedure, the Moxifloxacin bilayer wafer was designed, optimized and evaluated as an advanced wound healing dressing. The wafers were prepared by the lyophilization and casting method. Optimization was done according to the results of bioadhesion force, swelling index, release rate, T40 and T90 (the time to reach 40% and 90% of release). The optimized wafer was evaluated against in-vitro and in-vivo efficacy using the disc diffusion method and histologic evaluation after application on the wound. The optimized formulation contained HPMC, MC, gelatin and PVP with mounts of 50 mg, 25 mg, 2 mg and 10 mg respectively. The hydrophilic bilayer wafer is adhered to the wound up to the end of wound healing. Application of optimized formulation led to the healing of wound 6 days faster without any sign of infection. The application of this wafer promoted wound healing and epithelium regeneration without any inflammation.
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Affiliation(s)
- Hossein Jafari
- Department of Food and Drug Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Vahid Ramezani
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. ,Corresponding author: E-mail:
| | - Mohsen Nabi-Meibodi
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Ali Mohammad Ranjbar
- Department of Pharmacognosy, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Hameed M, Rasul A, Nazir A, Yousaf AM, Hussain T, Khan IU, Abbas G, Abid S, Yousafi QUA, Ghori MU, Shahzad Y. Moxifloxacin-loaded electrospun polymeric composite nanofibers-based wound dressing for enhanced antibacterial activity and healing efficacy. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1785464] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Misbah Hameed
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Akhtar Rasul
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ahsan Nazir
- Electrospun Materials and Polymeric Membranes Research Group, National Textile University, Faisalabad, Pakistan
| | | | - Talib Hussain
- Department of Pharmacy, COMSATS University Islamabad, Lahore, Pakistan
| | - Ikram Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ghulam Abbas
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sharjeel Abid
- Electrospun Materials and Polymeric Membranes Research Group, National Textile University, Faisalabad, Pakistan
| | | | - Muhammad Usman Ghori
- Department of Pharmacy, School of Applied Science, University of Huddersfield, Huddersfield, UK
| | - Yasser Shahzad
- Department of Pharmacy, COMSATS University Islamabad, Lahore, Pakistan
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13
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Bello-López JM, López-Ornelas A, Vilchis-Rangel RE, Ribas-Aparicio RM, Del-Moral P, Donis-Rocandio JE, Cueto J, Aparicio-Ozores G, Moreno J. In vitro bactericidal activity of a carbohydrate polymer with zinc oxide for the treatment of chronic wounds. J Med Microbiol 2020; 69:874-880. [PMID: 32459619 DOI: 10.1099/jmm.0.001204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction. Biological adhesives and effective topical therapeutic agents that improve wound healing are urgently required for the treatment of chronic ulcers. A biodegradable adhesive based on a carbohydrate polymer with zinc oxide (CPZO) was shown to possess anti-inflammatory activity and enhance wound healing, but its bactericidal activity was unknown.Aim. To investigate the bactericidal activity of CPZO against bacteria commonly present as infectious agents in chronic wounds.Methodology. We examined the bactericidal activity of CPZO against three biofilm-producing bacteria (Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa) through three strategies: bacterial suspension, biofilm disruption and in vitro wound biofilm model.Results. In suspension cultures, CPZO had direct, potent bactericidal action against S. aureus within 24 h, whereas E. coli took 7 days to be eliminated. By contrast, P. aeruginosa survived up to 14 days with CPZO. CPZO had biofilm disruption activity against clinical isolates of S. aureus in the anti-biofilm test. Finally, in the in vitro wound biofilm model, CPZO dramatically reduced the bacterial viability of S. aureus and P. aeruginosa.Conclusions. Together with its previously shown anti-inflammatory properties, the bactericidal activity of CPZO gives it the potential to be a first-line therapeutic option for chronic various ulcers and, possibly, other chronic ulcers, preventing or controlling microbial infections, and leading to the healing of such complicated chronic ulcers.
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Affiliation(s)
| | | | - Rodolfo Erik Vilchis-Rangel
- Department of Microbiology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Rosa María Ribas-Aparicio
- Department of Microbiology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Pamela Del-Moral
- Health Sciences Faculty, Anahuac University, Estado de México, Mexico
| | - Jenny Elizabeth Donis-Rocandio
- Department of Microbiology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Jorge Cueto
- Health Sciences Faculty, Anahuac University, Estado de México, Mexico
| | - Gerardo Aparicio-Ozores
- Department of Microbiology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - José Moreno
- Direction of Research, Hospital Juárez de México, Cuidad de México, Mexico
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14
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Wound healing properties and antimicrobial activity of platelet-derived biomaterials. Sci Rep 2020; 10:1032. [PMID: 31974417 PMCID: PMC6978467 DOI: 10.1038/s41598-020-57559-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/06/2020] [Indexed: 11/14/2022] Open
Abstract
We analyzed the potential antibacterial effects of two different PdB against methicillin-resistant S. aureus and P. aeruginosa. The third-degree burn wound healing effects of PdB was also studied. Blood samples were obtained from 10 healthy volunteers and biological assays of the PdB were performed and the antimicrobial activity against MRSA and P. aeruginosa was determined using disk diffusion (DD), broth microdilution (BMD), and time-kill assay methods. 48 Wistar albino rats were burned and infected with MRSA. Two groups were injected PdB, the control groups were treated with plasma and received no treatment respectively. In the next step, the rats were euthanized and skin biopsies were collected and histopathologic changes were examined. The results of DD and BMD showed that both PdB performed very well on MRSA, whereas P. aeruginosa was only inhibited by F-PdB and was less susceptible than MRSA to PdBs. The time-kill assay also showed that F-PdB has an antibacterial effect at 4 hours for two strains. Histopathological studies showed that the treated groups had less inflammatory cells and necrotic tissues. Our data suggest that PdB may possess a clinical utility as a novel topical antimicrobial and wound healing agent for infected burn wounds.
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15
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Chhibber T, Gondil VS, Sinha VR. Development of Chitosan-Based Hydrogel Containing Antibiofilm Agents for the Treatment of Staphylococcus aureus-Infected Burn Wound in Mice. AAPS PharmSciTech 2020; 21:43. [PMID: 31897806 DOI: 10.1208/s12249-019-1537-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/13/2019] [Indexed: 01/22/2023] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is considered a common colonizer of burn wound and accounts for high morbidity and mortality all across the globe. Systemic antibiotic therapy which is generally prescribed for these patients has a number of limitations. These include high drug dose, toxicity, and chances of development of drug resistance. However, local delivery of drug not only addresses these limitations but also provides better efficacy at the site of infection. In the present study, hydrogel preparations were developed for the topical delivery of moxifloxacin for the treatment of S. aureus-infected burn wound. Moxifloxacin was characterized by UV, FTIR, DSC, hot-stage microscopy, NMR, and HPLC and loaded into conventional and Boswellia-containing novel gels. Gels were characterized by visual examination, pH, UV spectroscopy, and release assays. In vivo studies showed that both gels were effective in eradicating the bacteria completely from the wound site when treatment was started during the early stage of infection. On the contrary, delayed treatment of planktonic and biofilm cells with novel gel showed better efficacy as compared with conventional gel in S. aureus-infected burn wound. Histopathological analysis also showed better skin healing efficacy of novel gel than conventional gel. Our results show that moxifloxacin can be efficiently used topically in the management of burn wound infections along with other antibacterial agents. Since biofilm-mediated infections are on the rise especially in chronic bacterial disease, therefore, a preparation containing antibiofilm agent-like Boswellia as one of the excipients would be more meaningful.
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Baljit Singh, Rajneesh, Baldev Singh, Kumar A, Aery S. Polysaccharides Sterculia Gum/Psyllium Based Hydrogel Dressings for Drug Delivery Applications. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19060105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Giram PS, Shitole A, Nande SS, Sharma N, Garnaik B. Fast dissolving moxifloxacin hydrochloride antibiotic drug from electrospun Eudragit L-100 nonwoven nanofibrous Mats. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:526-539. [DOI: 10.1016/j.msec.2018.06.031] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 06/01/2018] [Accepted: 06/13/2018] [Indexed: 02/07/2023]
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18
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Shahbazi H, Hashemi Gahruie H, Golmakani M, Eskandari MH, Movahedi M. Effect of medicinal plant type and concentration on physicochemical, antioxidant, antimicrobial, and sensorial properties of kombucha. Food Sci Nutr 2018; 6:2568-2577. [PMID: 30510759 PMCID: PMC6261221 DOI: 10.1002/fsn3.873] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to evaluate the effects of adding various medicinal plants to kombucha medium and to analyze the changes that occur to its physicochemical, antimicrobial, and sensorial properties. In the first part, measurements were made to determine IC 50 value, total phenolic content, total flavonoid content, minimum inhibitory concentration, pH, organic acids, and sensorial properties of kombucha that contained cinnamon, cardamom, or Shirazi thyme. Results showed that kombucha samples containing cinnamon exhibited higher antioxidant and antimicrobial activities, more organic acids, and better sensorial scores. In the second part, properties of kombucha containing 25%-100% concentrations of cinnamon were evaluated. The result showed that by increasing the cinnamon concentration, certain increases were observed in the amounts of organic acids and in the magnitudes of antioxidants and antimicrobial activities. In conclusion, antioxidant and antimicrobial activities of kombucha can be increased by adding medicinal plants, especially at higher concentrations.
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Affiliation(s)
- Hossein Shahbazi
- Department of Food Science and TechnologySchool of AgricultureShiraz UniversityShirazIran
| | - Hadi Hashemi Gahruie
- Department of Food Science and TechnologySchool of AgricultureShiraz UniversityShirazIran
| | | | - Mohammad H. Eskandari
- Department of Food Science and TechnologySchool of AgricultureShiraz UniversityShirazIran
| | - Matin Movahedi
- Department of Horticultural ScienceSchool of AgricultureShiraz UniversityShirazIran
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19
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Farahpour MR, Vahid M, Oryan A. Effectiveness of topical application of ostrich oil on the healing of Staphylococcus aureus- and Pseudomonas aeruginosa-infected wounds. Connect Tissue Res 2018; 59:212-222. [PMID: 28682114 DOI: 10.1080/03008207.2017.1350174] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND/AIMS Management of infected wounds is one of the major challenges that surgeons and nurses face. Several antimicrobial agents have been used, but the toxicity, drug resistance, and their effect on the healing process remain a matter of concern. The present study was designed to analyze the accelerative impact of topical application of ostrich oil on infected wounds in a mouse model. MATERIALS AND METHODS 72 BALB/c mice were divided into four main groups of control-sham, mupirocin, and two treatment groups receiving 2% and 4% (w/w) concentrations of ostrich oil, topically. The mice were routinely anesthetized and wounds were created by excising the skin with a 5-mm biopsy punch. Immediately after wounding, an aliquot of 25 × 107 Staphylococcus aureus and Pseudomonas aeruginosa was suspended in 50-μL phosphate-buffered saline and applied on the wound and the wound was left open. The healing rate in the infected wound was assessed using wound area, histopathological characteristics, and expression of growth factors including vascular endothelial growth factor (VEGF), transforming growth factor beta 1 (TGF-β1), and fibroblast growth factor 2 (FGF-2). RESULTS The wound area significantly decreased (p < 0.05) in the treated animals. There was a significant increase (p < 0.05) in new vessels, fibroblasts count, and collagen deposition in the ostrich oil-treated animals. Expression of VEGF, TGF-β1, and FGF-2 revealed the immunomodulation and angiogenesis effects of the ostrich oil on wound healing. CONCLUSIONS Our study demonstrated that ostrich oil may be a useful treatment in infected cutaneous wounds.
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Affiliation(s)
| | - Mahsa Vahid
- b Department of Microbiology, Faculty of Basic Sciences , Urmia Branch, Islamic Azad University , Urmia , Iran
| | - Ahmad Oryan
- c Department of Pathology , School of Veterinary Medicine, Shiraz University , Shiraz , Iran
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20
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Singh B, Dhiman A. Evaluation of network parameters and drug release behavior of gum acacia-crosslinked-carbopol hydrogel wound dressings. POLYMER SCIENCE SERIES A 2018. [DOI: 10.1134/s0965545x16050187] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Ciprofloxacin-lidocaine-based hydrogel: development, characterization, and in vivo evaluation in a second-degree burn model. Drug Deliv Transl Res 2018; 8:1000-1013. [DOI: 10.1007/s13346-018-0523-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Kouhkheil R, Fridoni M, Piryaei A, Taheri S, Chirani AS, Anarkooli IJ, Nejatbakhsh R, Shafikhani S, Schuger LA, Reddy VB, Ghoreishi SK, Jalalifirouzkouhi R, Chien S, Bayat M. The effect of combined pulsed wave low‐level laser therapy and mesenchymal stem cell‐conditioned medium on the healing of an infected wound with methicillin‐resistant
Staphylococcal aureus
in diabetic rats. J Cell Biochem 2018; 119:5788-5797. [DOI: 10.1002/jcb.26759] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 01/25/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Reza Kouhkheil
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Mohammadjavad Fridoni
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Abbas Piryaei
- Department of Biology and Anatomical Sciences, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Soudabeh Taheri
- Department of Medical Microbiology, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Alireza S. Chirani
- Department of Medical Microbiology, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Iraj J. Anarkooli
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Reza Nejatbakhsh
- Department of Biology and Anatomical Sciences, School of MedicineZanjan University of Medical SciencesZanjanIran
| | - Sasha Shafikhani
- Department of Medicine, Division of Hematology/OncologyRush University Medical CenterChicagoIllinois
- Department of Immunology/MicrobiologyCancer CenterChicagoIllinois
| | | | - Vijaya B. Reddy
- Pathology DepartmentRush University Medical CenterChicagoIllinois
| | | | | | - Sufan Chien
- Noveratech LLC of LouisvilleLouisvilleKentucky
- Department of SurgeryUniversity of LouisvilleLouisvilleKentucky
| | - Mohammad Bayat
- Cellular and Molecular Biology Research Center, and Department of Biology and Anatomical Sciences, School of MedicineShahid Beheshti University of Medical SciencesTehranIran
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Liu S, Fukushima K, Venkataraman S, Hedrick JL, Yang YY. Supramolecular nanofibers self-assembled from cationic small molecules derived from repurposed poly(ethylene teraphthalate) for antibiotic delivery. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:165-172. [DOI: 10.1016/j.nano.2017.09.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 09/09/2017] [Accepted: 09/18/2017] [Indexed: 01/18/2023]
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24
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Huang HN, Pan CY, Wu HY, Chen JY. Antimicrobial peptide Epinecidin-1 promotes complete skin regeneration of methicillin-resistant Staphylococcus aureus-infected burn wounds in a swine model. Oncotarget 2017; 8:21067-21080. [PMID: 28177877 PMCID: PMC5400566 DOI: 10.18632/oncotarget.15042] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 01/16/2017] [Indexed: 01/27/2023] Open
Abstract
This report shows that the antimicrobial peptide (AMP) Epinecidin-1 (Epi-1) efficiently heals MRSA-infected heat burn injuries and provides protection from infection in a pig model. The presence of an optimal level of Epi-1 induces cell proliferation by promoting cell cycle progression through an increase in S-phase cells. Epi-1 also induces proliferation to cover the wounded region in an in vitro cell proliferation assay using immortalized human epithelial HaCaT cells. Next, the in vivo wound healing efficiency of Epi-1 was tested in heat-burned pig skin infected with MRSA under in vivo conditions. Treatment of the injury with Epi-1 for 1 h at six hours post-infection completely healed the wound within 25 days. Conversely, the injury in the untreated control was not healed 25 days post-infection. Histological staining of wound sections with H&E showed that Epi-1 enhanced vascularization and increased epithelial activities in the wound region. Neutrophil recruitment to the wounded region in the Epi-1-treated sections was visualized by Giemsa staining. Additionally, Masson's trichrome staining of wound sections confirmed that Epi-1 enhanced extracellular collagen compound formation. The induction of sepsis-associated blood C-reactive protein (CRP) and the pro-inflammatory cytokine IL-6 in response to MRSA infection was also suppressed in pigs that received Epi-1. Taken together, the results demonstrate that the biomaterial Epi-1 heals wounds through increasing epithelial cell proliferation, vascularization, and the formation of collagen and controls MRSA infection-mediated sepsis in pigs.
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Affiliation(s)
- Han-Ning Huang
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, Jiaushi, Ilan, Taiwan
| | - Chieh-Yu Pan
- Department and Graduate Institute of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - Hung-Yi Wu
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Neipu, Taiwan
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, Jiaushi, Ilan, Taiwan
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25
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The potential use of gentamicin sulfate-loaded silk fibroin/gelatin blend scaffolds for wound dressing materials. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2170-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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26
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Designing sterile biocompatible moxifloxacin loaded trgacanth-PVA-alginate wound dressing by radiation crosslinking method. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.wndm.2017.01.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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27
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Singh B, Sharma S, Dhiman A. Acacia gum polysaccharide based hydrogel wound dressings: Synthesis, characterization, drug delivery and biomedical properties. Carbohydr Polym 2017; 165:294-303. [DOI: 10.1016/j.carbpol.2017.02.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 02/02/2017] [Accepted: 02/11/2017] [Indexed: 10/20/2022]
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28
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Kalita S, Kandimalla R, Devi B, Kalita B, Kalita K, Deka M, Chandra Kataki A, Sharma A, Kotoky J. Dual delivery of chloramphenicol and essential oil by poly-ε-caprolactone–Pluronic nanocapsules to treat MRSA-Candida co-infected chronic burn wounds. RSC Adv 2017. [DOI: 10.1039/c6ra26561h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel feasible nano capsular approach through co-encapsulation of chloramphenicol and lemon-grass essential oil to combat chronic burn wound infections.
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Affiliation(s)
- Sanjeeb Kalita
- Drug Discovery Lab
- Institute of Advanced Study in Science and Technology
- Guwahati – 781035
- India
| | - Raghuram Kandimalla
- Drug Discovery Lab
- Institute of Advanced Study in Science and Technology
- Guwahati – 781035
- India
| | - Banasmita Devi
- Drug Discovery Lab
- Institute of Advanced Study in Science and Technology
- Guwahati – 781035
- India
| | - Bhupalee Kalita
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru
- India
| | | | - Manab Deka
- Department of Bioengineering and Technology
- Gauhati University
- Guwahati – 781014
- India
| | | | - Arup Sharma
- College of Veterinary Science
- Assam Agriculture University
- Guwahati – 781022
- India
| | - Jibon Kotoky
- Drug Discovery Lab
- Institute of Advanced Study in Science and Technology
- Guwahati – 781035
- India
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Nimal TR, Baranwal G, Bavya MC, Biswas R, Jayakumar R. Anti-staphylococcal Activity of Injectable Nano Tigecycline/Chitosan-PRP Composite Hydrogel Using Drosophila melanogaster Model for Infectious Wounds. ACS APPLIED MATERIALS & INTERFACES 2016; 8:22074-22083. [PMID: 27508491 DOI: 10.1021/acsami.6b07463] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Compared to the current treatment modalities, the use of an injectable hydrogel system, loaded with antibiotic encapsulated nanoparticles for the purpose of treating Staphylococcus aureus (S. aureus) chronic wound infections have several advantages. These include adhesiveness to infection site, reduced frequency of dressings, sustained drug release, inhibition of bacterial growth, and increased healing. In the present work tigecycline nanoparticles were loaded into chitosan-platelet-rich plasma (PRP) hydrogel. The tigecycline nanoparticles (95 ± 13 nm) were synthesized through ionic cross-linking method using chitosan, tripolyphosphate, and tigecycline and characterized by dynamic light scattering (DLS), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FT-IR). The synthesized nanoparticles and activated PRP powder were mixed with chitosan hydrogel to form a homogeneous gel. Rheology studies have confirmed the shear thinning property, thermal stability, and injectability of the prepared gel systems. The gel system was further assessed for its drug release property and found that it was released in a sustained manner. Hemolysis and blood-clotting assays demonstrated that the gel system was neither a hemolysin nor a hamper to the clotting cascade. Cell viability results showed that these nanoparticles were cyto-compatible. The bioactivity of PRP loaded chitosan gel toward fibroblast cell line was studied using cell proliferation and migration assay. In vitro antibacterial studies revealed that the gel system inhibited bacterial growth to a great extent. The antibacterial activity was further analyzed using ex vivo porcine skin assay. In vivo anti-Staphylococcal activity of the prepared hydrogels was studied using a Drosophila melanogaster infection model. The tigecycline and tigecycline nanoparticle incorporated chitosan gel showed a significant antibacterial activity against S. aureus. Thus, the gel system is an effective medium for antibiotic delivery and can be applied on the infection sites to effectively forestall various skin infections caused by S. aureus.
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Affiliation(s)
- T R Nimal
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University , Kochi 682041, India
| | - Gaurav Baranwal
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University , Kochi 682041, India
| | - M C Bavya
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University , Kochi 682041, India
| | - Raja Biswas
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University , Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University , Kochi 682041, India
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30
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Roy DC, Tomblyn S, Isaac KM, Kowalczewski CJ, Burmeister DM, Burnett LR, Christy RJ. Ciprofloxacin-loaded keratin hydrogels reduce infection and support healing in a porcine partial-thickness thermal burn. Wound Repair Regen 2016; 24:657-68. [PMID: 27238250 DOI: 10.1111/wrr.12449] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 05/12/2016] [Indexed: 12/31/2022]
Abstract
Infection is a leading cause of morbidity and mortality in burn patients. Current therapies include silver-based creams and dressings, which display limited antimicrobial effectiveness and impair healing. The need exists for a topical, point-of-injury antibiotic treatment that provides sustained antimicrobial activity without impeding wound repair. Fitting this description are keratin-based hydrogels, which are fully biocompatible and support the slow-release of antibiotics. Here we develop a porcine model of an infected partial-thickness burn to test the effects of ciprofloxacin-loaded keratin hydrogels on infection and wound healing. Partial-thickness burns were inoculated with either Pseudomonas aeruginosa or Methicillin-resistant Staphylococcus aureus, resulting in infections that persisted for >2 weeks that exceeded 10(5) and 10(6) cfu per gram of tissue, respectively. Compared to silver sulfadiazine, ciprofloxacin-loaded keratin hydrogel treatment significantly reduced the amount of P. aeruginosa and S. aureus in the burn by >99% on days 4, 7, 11, and 15 postinjury. Further, burns treated with ciprofloxacin-loaded keratin hydrogels exhibited similar healing patterns as uninfected burns with regards to reepithelialization, macrophage recruitment, and collagen deposition and remodeling. The ability of keratin hydrogels to deliver antibiotics to fight infection and support healing of partial-thickness burns make them a strong candidate as a first-line burn therapy.
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Affiliation(s)
- Daniel C Roy
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas.,KeraNetics, LLC, Winston-Salem, North Carolina
| | | | - Kameel M Isaac
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
| | - Christine J Kowalczewski
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas.,KeraNetics, LLC, Winston-Salem, North Carolina
| | - David M Burmeister
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
| | | | - Robert J Christy
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
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31
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Sohrabi S, Haeri A, Mahboubi A, Mortazavi A, Dadashzadeh S. Chitosan gel-embedded moxifloxacin niosomes: An efficient antimicrobial hybrid system for burn infection. Int J Biol Macromol 2016; 85:625-33. [DOI: 10.1016/j.ijbiomac.2016.01.013] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/13/2015] [Accepted: 01/02/2016] [Indexed: 12/17/2022]
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Song Z, Sun H, Yang Y, Jing H, Yang L, Tong Y, Wei C, Wang Z, Zou Q, Zeng H. Enhanced efficacy and anti-biofilm activity of novel nanoemulsions against skin burn wound multi-drug resistant MRSA infections. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1543-55. [PMID: 26961464 DOI: 10.1016/j.nano.2016.01.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 11/20/2015] [Accepted: 01/25/2016] [Indexed: 11/17/2022]
Abstract
Multi-drug resistant MRSA (methicillin-resistant Staphylococcus aureus) is a global problem for human health, especially skin burn wound patients. Therefore, we estimated the antibacterial and anti-biofilm activity of a chlorhexidine acetate nanoemulsion (CNE) by previously ourselves designed against skin burn wound MRSA infections. Compared with its water solution (CHX), CNE showed a better and faster action against MRSA both in vitro and in vivo. Importantly, CNE was more effective at inhibiting biofilm formation and clearing the biofilm. We also found that the cell walls and membranes of MRSA were severely disrupted after treatment with CNE. Moreover, the relative electrical conductivity and the leakage of alkaline phosphates, K(+), Mg(2+), DNA and protein obviously increased because the cell wall and membrane were damaged. These data show that novel CNE is a promising potential antimicrobial candidate, especially for skin burn wound MRSA infections.
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Affiliation(s)
- Zhen Song
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Hongwu Sun
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China.
| | - Yun Yang
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Haiming Jing
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Liuyang Yang
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Yanan Tong
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Chao Wei
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Zelin Wang
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Quanming Zou
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China
| | - Hao Zeng
- National Engineering Research Center of Immunological Products & Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University of Chinese PLA, Chongqing, PR China.
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33
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Bangera D, Shenoy SM, Saldanha DR. Clinico-microbiological study of Pseudomonas aeruginosa in wound infections and the detection of metallo-β-lactamase production. Int Wound J 2015; 13:1299-1302. [PMID: 26514946 DOI: 10.1111/iwj.12519] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 09/19/2015] [Indexed: 11/29/2022] Open
Abstract
Pseudomonas aeruginosa is a common opportunistic pathogen of humans among the Gram-negative bacilli. Clinically, it is associated with nosocomial infections like burns and surgical-site wound infections and remains a major health concern, especially among critically ill and immunocompromised patients. This is a prospective laboratory-based 2 year study conducted to isolate P. aeruginosa from wound specimens and the antimicrobial susceptibility pattern with reference to metallo-β-lactamase (MBL) production. Two hundred and twenty-four samples of P. aeruginosa isolated from wound specimens were included in the study. Antimicrobial susceptibility was done as per Clinical Laboratory Standard Institute (CLSI) guidelines. MBL-producing P. aeruginosa was detected using the EDTA disk diffusion synergy test. Statistical analysis was done using the SPSS 11 package (SPSS Inc., Chicago, IL). Out of the 224 P. aeruginosa isolates, 100% were susceptible to polymyxin B and colistin, 92·8% were sensitive to imipenem, 38% showed resistance to gentamicin followed by ceftazidime (31·69%) and meropenem (33·03). Sixteen (7·14%) isolates showed MBL production. Infection caused by drug-resistant P. aeruginosa is important to identify as it poses a therapeutic problem and is also a serious concern for infection control management. The acquired resistance genes can be horizontally transferred to other pathogens or commensals if aseptic procedures are not followed.
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Affiliation(s)
- Divya Bangera
- Department of Microbiology, Kasturba Medical College, Manipal University, Mangalore, Karnataka, India
| | - Suchitra M Shenoy
- Department of Microbiology, Kasturba Medical College, Manipal University, Mangalore, Karnataka, India
| | - Dominic Rm Saldanha
- Department of Microbiology, Kannur Medical College, Anjarakandy, Kerala, India
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Roy DC, Tomblyn S, Burmeister DM, Wrice NL, Becerra SC, Burnett LR, Saul JM, Christy RJ. Ciprofloxacin-Loaded Keratin Hydrogels Prevent Pseudomonas aeruginosa Infection and Support Healing in a Porcine Full-Thickness Excisional Wound. Adv Wound Care (New Rochelle) 2015; 4:457-468. [PMID: 26244102 DOI: 10.1089/wound.2014.0576] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 09/19/2014] [Indexed: 12/19/2022] Open
Abstract
Objective: Cutaneous wound infection can lead to impaired healing, multiple surgical procedures, and increased hospitalization time. We tested the effectiveness of keratin-based hydrogels (termed "keratose") loaded with ciprofloxacin to inhibit infection and support healing when topically administered to porcine excision wounds infected with Pseudomonas aeruginosa. Approach: Using a porcine excisional wound model, 10 mm full-thickness wounds were inoculated with 106 colony-forming units of P. aeruginosa and treated on days 1 and 3 postinoculation with ciprofloxacin-loaded keratose hydrogels. Bacteria enumeration and wound healing were assessed on days 3, 7, and 11 postinjury. Results: Ciprofloxacin-loaded keratose hydrogels reduced the amount of P. aeruginosa in the wound bed by 99.9% compared with untreated wounds on days 3, 7, and 11 postinjury. Ciprofloxacin-loaded keratose hydrogels displayed decreased wound contraction and reepithelialization at day 7 postinjury. By day 11, wounds treated with ciprofloxacin-keratose hydrogels contained collagen-rich granulation tissue and myofibroblasts. Wounds treated with ciprofloxacin-loaded keratose hydrogels exhibited a transient increase in macrophages in the wound bed at day 7 postinjury that subsided by day 11. Innovation: Current therapies for wound infection include systemic antibiotics, which could lead to antibiotic resistance, and topical antimicrobial treatments, which require multiple applications and can delay healing. Here, we show that ciprofloxacin-loaded keratose hydrogels inhibit cutaneous wound infection without interfering with key aspects of the healing process including granulation tissue deposition and remodeling. Conclusions: Ciprofloxacin-loaded keratose hydrogels have the potential to serve as a point-of-injury antibiotic therapy that prevents infection and supports healing following cutaneous injury.
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Affiliation(s)
- Daniel C. Roy
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
- KeraNetics, LLC, Winston-Salem, North Carolina
| | | | | | - Nicole L. Wrice
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
| | - Sandra C. Becerra
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
| | | | | | - Robert J. Christy
- United States Army Institute of Surgical Research, Fort Sam Houston, Texas
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35
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Kalita S, Devi B, Kandimalla R, Sharma KK, Sharma A, Kalita K, Kataki AC, Kotoky J. Chloramphenicol encapsulated in poly-ε-caprolactone-pluronic composite: nanoparticles for treatment of MRSA-infected burn wounds. Int J Nanomedicine 2015; 10:2971-84. [PMID: 25931822 PMCID: PMC4404939 DOI: 10.2147/ijn.s75023] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The emergence of methicillin-resistant Staphylococcus aureus (MRSA) infection has increased precipitously over the past several decades, with far-reaching health care and societal costs. MRSA infections in the context of burn wounds lead to invasive disease that could potentially cause mortality. Chloramphenicol is a well-known broad-spectrum bacteriostatic antibiotic that has been used since 1949, but due to its hydrophobicity, poor penetration in skin, fast degradation, and toxicity, its application has been hindered. Furthermore, it has been demonstrated that old antibiotics such as chloramphenicol remained active against a large number of currently prevalent resistant bacterial isolates due to their low-level use in the past. Recently, the novel nanoparticulate drug-delivery system has been used and reported to be exceptionally useful for topical therapeutics, due to its distinctive physical characteristics such as a high surface-to-volume ratio and minuscule size. It helps to achieve better hydrophilicity, bioavailability, and controlled delivery with enhanced therapeutic index, which has resulted in decreased toxicity levels compared to the crude drug. Here, we report a novel chloramphenicol loaded with poly(ε-caprolactone) (PCL)-pluronic composite nanoparticles (CAM-PCL-P NPs), physicochemical characterizations, and its bioactivity evaluation in a MRSA-infected burn-wound animal model. CAM-PCL-P NPs could encapsulate 98.3% of the drug in the nanoparticles and release 81% of the encapsulated drug over 36 days with a time to 50% drug release of 72 hours (51%). Nanoparticle suspensions maintained the initial properties with respect to size and encapsulation efficiency, even after 6 months of storage at 4°C and 25°C, respectively (P>0.05). Significant reduction in the level of toxicity was observed for CAM-PCL-P NPs compared with that of free drug as confirmed from hemolytic activity against human blood erythrocytes and cytotoxicity assay against an MCF-7 breast cancer cell line. In vitro antibacterial activities were performed by zone of inhibition, minimum inhibitory concentrations, minimum bacterial concentration, and time-kill assays, which showed that CAM-PCL-P NPs exhibited significantly enhanced anti-MRSA activity against ten clinical isolates of MRSA strains. The augmented activity of CAM-PCL-P NPs was further tested on a MRSA-infected burn-wound animal model and achieved quicker efficacy in MRSA clearance and improved the survival rate compared with free-chloramphenicol treatment. Thus, we propose CAM-PCL-P NPs as a promising novel antimicrobial candidate that may have a good potential for preclinical applications.
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Affiliation(s)
- Sanjeeb Kalita
- Institute of Advanced Study in Science and Technology (IASST), Division of Life Sciences, Paschim Boragaon, Garchuk, Guwahati, Assam, India
| | - Banasmita Devi
- Institute of Advanced Study in Science and Technology (IASST), Division of Life Sciences, Paschim Boragaon, Garchuk, Guwahati, Assam, India
| | - Raghuram Kandimalla
- Institute of Advanced Study in Science and Technology (IASST), Division of Life Sciences, Paschim Boragaon, Garchuk, Guwahati, Assam, India
| | - Kaustav Kalyan Sharma
- Institute of Advanced Study in Science and Technology (IASST), Division of Life Sciences, Paschim Boragaon, Garchuk, Guwahati, Assam, India
| | - Arup Sharma
- College of Veterinary Science, Assam Agriculture University, Khanapara, Guwahati, Assam, India
| | | | | | - Jibon Kotoky
- Institute of Advanced Study in Science and Technology (IASST), Division of Life Sciences, Paschim Boragaon, Garchuk, Guwahati, Assam, India
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36
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Serra R, Grande R, Butrico L, Rossi A, Settimio UF, Caroleo B, Amato B, Gallelli L, de Franciscis S. Chronic wound infections: the role of Pseudomonas aeruginosa and Staphylococcus aureus. Expert Rev Anti Infect Ther 2015; 13:605-13. [PMID: 25746414 DOI: 10.1586/14787210.2015.1023291] [Citation(s) in RCA: 379] [Impact Index Per Article: 42.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Chronic leg ulcers affect 1-2% of the general population and are related to increased morbidity and health costs. Staphylococcus aureus and Pseudomonas aeruginosa are the most common bacteria isolated from chronic wounds. They can express virulence factors and surface proteins affecting wound healing. The co-infection of S. aureus and P. aeruginosa is more virulent than single infection. In particular, S. aureus and P. aeruginosa have both intrinsic and acquired antibiotic resistance, making clinical management of infection a real challenge, particularly in patients with comorbidity. Therefore, a correct and prompt diagnosis of chronic wound infection requires a detailed knowledge of skin bacterial flora. This is a necessary prerequisite for tailored pharmacological treatment, improving symptoms, and reducing side effects and antibiotic resistance.
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Affiliation(s)
- Raffaele Serra
- Interuniversity Center of Phlebolymphology (CIFL), International Research and Educational Program in Clinical and Experimental Biotechnology, Headquarters: University Magna Græcia of Catanzaro, Viale Europa 88100 Catanzaro, Italy
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Rivadeneira J, Di Virgilio AL, Audisio MC, Boccaccini AR, Gorustovich AA. Evaluation of the antibacterial effects of vancomycin hydrochloride released from agar–gelatin–bioactive glass composites. Biomed Mater 2015; 10:015011. [DOI: 10.1088/1748-6041/10/1/015011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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38
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Singh B, Dhiman A. Designing bio-mimetic moxifloxacin loaded hydrogel wound dressing to improve antioxidant and pharmacology properties. RSC Adv 2015. [DOI: 10.1039/c5ra06857f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Recently, it has been found that moxifloxacin, an antibiotic drug, promotes wound healing without induction to bacterial resistance.
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Affiliation(s)
- Baljit Singh
- Department of Chemistry
- Himachal Pradesh University
- Shimla - 171005
- India
| | - Abhishek Dhiman
- Department of Chemistry
- Himachal Pradesh University
- Shimla - 171005
- India
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39
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Guo ZQ, Wang JH, Fang DM, Wu ZJ. Fragmentation of Moxifloxacin and Its Analogs by Electrospray Ionization Time-of-Flight Mass Spectrometry. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.928886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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40
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Murray JL, Connell JL, Stacy A, Turner KH, Whiteley M. Mechanisms of synergy in polymicrobial infections. J Microbiol 2014; 52:188-99. [PMID: 24585050 PMCID: PMC7090983 DOI: 10.1007/s12275-014-4067-3] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/06/2014] [Indexed: 01/09/2023]
Abstract
Communities of microbes can live almost anywhere and contain many different species. Interactions between members of these communities often determine the state of the habitat in which they live. When these habitats include sites on the human body, these interactions can affect health and disease. Polymicrobial synergy can occur during infection, in which the combined effect of two or more microbes on disease is worse than seen with any of the individuals alone. Powerful genomic methods are increasingly used to study microbial communities, including metagenomics to reveal the members and genetic content of a community and metatranscriptomics to describe the activities of community members. Recent efforts focused toward a mechanistic understanding of these interactions have led to a better appreciation of the precise bases of polymicrobial synergy in communities containing bacteria, eukaryotic microbes, and/or viruses. These studies have benefited from advances in the development of in vivo models of polymicrobial infection and modern techniques to profile the spatial and chemical bases of intermicrobial communication. This review describes the breadth of mechanisms microbes use to interact in ways that impact pathogenesis and techniques to study polymicrobial communities.
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Affiliation(s)
- Justine L. Murray
- Department of Molecular Biosciences, Institute of Cell and Molecular Biology, Center for Infectious Disease, The University of Texas at Austin, Austin, TX 78712 USA
| | - Jodi L. Connell
- Department of Molecular Biosciences, Institute of Cell and Molecular Biology, Center for Infectious Disease, The University of Texas at Austin, Austin, TX 78712 USA
| | - Apollo Stacy
- Department of Molecular Biosciences, Institute of Cell and Molecular Biology, Center for Infectious Disease, The University of Texas at Austin, Austin, TX 78712 USA
| | - Keith H. Turner
- Department of Molecular Biosciences, Institute of Cell and Molecular Biology, Center for Infectious Disease, The University of Texas at Austin, Austin, TX 78712 USA
| | - Marvin Whiteley
- Department of Molecular Biosciences, Institute of Cell and Molecular Biology, Center for Infectious Disease, The University of Texas at Austin, Austin, TX 78712 USA
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41
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Bowers DR, Tam VH. Pseudomonas aeruginosatreatment and transmission reduction. Expert Rev Anti Infect Ther 2014; 11:831-7. [DOI: 10.1586/14787210.2013.816463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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42
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Rivadeneira J, Carina Audisio M, Boccaccini A, Gorustovich A. In vitro
antistaphylococcal effects of a novel 45S5 bioglass/agar-
gelatin biocomposite films. J Appl Microbiol 2013; 115:604-12. [DOI: 10.1111/jam.12254] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 04/18/2013] [Accepted: 05/13/2013] [Indexed: 01/10/2023]
Affiliation(s)
- J. Rivadeneira
- Grupo Interdisciplinario en Materiales- Universidad Católica de Salta (IESIING-UCASAL); Instituto de Tecnologías y Ciencias de Ingeniería-Universidad Buenos Aires-Consejo Nacional de Investigaciones Científicas y Técnicas (INTECIN UBA-CONICET); Salta Argentina
| | - M. Carina Audisio
- Instituto de Investigaciones para la Industria Química - Consejo Nacional de Investigaciones Científicas y Técnicas (INIQUI - CONICET); Universidad Nacional de Salta (UNSa); Salta Argentina
| | - A.R. Boccaccini
- Institute of Biomaterials; University of Erlangen-Nuremberg; Erlangen Germany
| | - A.A. Gorustovich
- Grupo Interdisciplinario en Materiales- Universidad Católica de Salta (IESIING-UCASAL); Instituto de Tecnologías y Ciencias de Ingeniería-Universidad Buenos Aires-Consejo Nacional de Investigaciones Científicas y Técnicas (INTECIN UBA-CONICET); Salta Argentina
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Abstract
In this chapter a review of animal model systems already being utilized to study normal and pathologic wound healing is provided. We also go into details on alternatives for animal wound model systems. The case is made for limitations in the various approaches. We also discuss the benefits/limitations of in vitro/ex vivo systems bringing everything up to date with our current work on developing a cell-based reporter system for diabetic wound healing.
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Affiliation(s)
- Phil Stephens
- Wound Biology Group, Cardiff Institute of Tissue Engineering and Repair Tissue Engineering and Reparative Dentistry, School of Dentistry, Cardiff University, Cardiff, Wales, UK
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