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Shen T, Tian B, Liu W, Yang X, Sheng Q, Li M, Wang H, Wang X, Zhou H, Han Y, Ding C, Sai S. Transdermal administration of farnesol-ethosomes enhances the treatment of cutaneous candidiasis induced by Candida albicans in mice. Microbiol Spectr 2024; 12:e0424723. [PMID: 38415658 PMCID: PMC10986551 DOI: 10.1128/spectrum.04247-23] [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: 12/20/2023] [Accepted: 02/13/2024] [Indexed: 02/29/2024] Open
Abstract
Cutaneous candidiasis, caused by Candida albicans, is a severe and frustrating condition, and finding effective treatments can be challenging. Therefore, the development of farnesol-loaded nanoparticles is an exciting breakthrough. Ethosomes are a novel transdermal drug delivery carrier that incorporates a certain concentration (10-45%) of alcohols into lipid vesicles, resulting in improved permeability and encapsulation rates compared to conventional liposomes. Farnesol is a quorum-sensing molecule involved in morphogenesis regulation in C. albicans, and these ethosomes offer a promising new approach to treating this common fungal infection. This study develops the formulation of farnesol-loaded ethosomes (farnesol-ethosomes) and assesses applications in treating cutaneous candidiasis induced by C. albicans in vitro and in vivo. Farnesol-ethosomes were successfully developed by ethanol injection method. Therapeutic properties of farnesol-ethosomes, such as particle size, zeta potential, and morphology, were well characterized. According to the results, farnesol-ethosomes demonstrated an increased inhibition effect on cells' growth and biofilm formation in C. albicans. In Animal infection models, treating farnesol-ethosomes by transdermal administration effectively relieved symptoms caused by cutaneous candidiasis and reduced fungal burdens in quantity. We also observed that ethosomes significantly enhanced drug delivery efficacy in vitro and in vivo. These results indicate that farnesol-ethosomes can provide future promising roles in curing cutaneous candidiasis. IMPORTANCE Cutaneous candidiasis attributed to Candida infection is a prevalent condition that impacts individuals of all age groups. As a type of microbial community, biofilms confer benefits to host infections and mitigate the clinical effects of antifungal treatments. In C. albicans, the yeast-to-hypha transition and biofilm formation are effectively suppressed by farnesol through its modulation of multiple signaling pathway. However, the characteristics of farnesol such as hydrophobicity, volatility, degradability, and instability in various conditions can impose limitations on its effectiveness. Nanotechnology holds the potential to enhance the efficiency and utilization of this molecule. Treatment of farnesol-ethosomes by transdermal administration demonstrated a very remarkable therapeutic effect against C. albicans in infection model of cutaneous candidiasis in mice. Many patients suffering fungal skin infection will benefit from this study.
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Affiliation(s)
- Ting Shen
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
| | - Baocheng Tian
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
| | - Wei Liu
- College of Life and Health Science, Northeastern University, Shenyang, China
| | - Xuesong Yang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
| | - Qi Sheng
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
| | - Mengxin Li
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
| | - Haiyan Wang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
| | - Xiuwen Wang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
| | - Huihui Zhou
- Department of pathology, Affiliated Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Yanchun Han
- Department of Pathology, Binzhou Medical University, Yantai, Shandong, China
| | - Chen Ding
- College of Life and Health Science, Northeastern University, Shenyang, China
| | - Sixiang Sai
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong, China
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Pan H, Wang T, Che Y, Li X, Cui Y, Chen Q, Wu Z, Yi J, Wang B. Evaluation of the Effect and Mechanism of Sanhuang Ointment on MRSA Infection in the Skin and Soft Tissue via Network Pharmacology. Infect Drug Resist 2023; 16:7071-7095. [PMID: 37954508 PMCID: PMC10638900 DOI: 10.2147/idr.s424746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023] Open
Abstract
Introduction Skin and soft tissue infection (SSTI) is a frequently encountered clinical disease, and Sanhuang ointment, a traditional Chinese medicine, is used to treat it. However, the pharmacological effect of Sanhuang ointment on SSTI and its underlying mechanism remains unclear. Here, we investigate the protective effect of Sanhuang ointment on Methicillin-resistant Staphylococcus aureus (MRSA) infection in the skin and soft tissues and the underlying mechanism by network pharmacological analysis, followed by in vivo experimental validation. Methods Via network pharmacology, the active components and disease targets of Sanhuang ointment were screened and intersected for Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. A rat model of skin and soft tissue infection was established, and pathological features were observed. Large, medium, and small-dose groups (1 g, 0.5 g, and 0.25 g/animal, with the total amount of Vaseline, dispensed 1 g/animal) of Sanhuang ointment were prepared and Mupirocin ointment was used as a positive control (0.5 g/animal, with the total amount of Vaseline, dispensed 1 g/animal). The expressions of key proteins of the IL-17/NF-κB signaling pathway and downstream inflammatory factors were analyzed by histomorphological analysis, enzyme-linked immunosorbent assay, polymerase chain reaction, and Western blotting. Results In all, 119 active components and 275 target genes of Sanhuang ointment were identified and intersected with MRSA infection-related genes via network pharmacology analysis, and 34 target genes of Sanhuang ointment were found to be involved in skin and soft tissue infections with MRSA. Sanhuang ointment (1 g/mouse) could effectively ameliorate histopathological changes and significantly inhibit the expression of key proteins involved in the IL-17/NF-κB signaling pathway and downstream inflammatory factors (p < 0.05). Conclusion Sanhuang ointment has a protective effect on MRSA infection and inhibits inflammation by inhibiting the IL-17/NF-κB signaling pathway. Our findings are important for the secondary development and new drug development of Sanhuang ointment.
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Affiliation(s)
- Haibang Pan
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
| | - Tianming Wang
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
- Gansu Provincial Key Laboratory of Traditional Chinese Medicine Recipe Mining and Innovation Transformation, Gansu Province New Production of Traditional Chinese Medicine Product Creation Engineering Laboratory, Lanzhou, People’s Republic of China
| | - Ying Che
- School of Nursing, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
- Research Ward, Gansu Provincial People's Hospital, Lanzhou, People's Republic of China
| | - Xiaoli Li
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
- Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, People’s Republic of China
| | - Yan Cui
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
| | - Quanxin Chen
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
| | - Zhihang Wu
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
| | - Jianfeng Yi
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
| | - Bo Wang
- School of Nursing, Gansu University of Chinese Medicine, Lanzhou, People’s Republic of China
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Wen H, Zhou W, Wu Y, Li Y, Zhu G, Zhang Z, Gu X, Wang C, Yang Z. Effective treatment of a broad-host-range lytic phage SapYZU15 in eliminating Staphylococcus aureus from subcutaneous infection. Microbiol Res 2023; 276:127484. [PMID: 37659336 DOI: 10.1016/j.micres.2023.127484] [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: 06/24/2023] [Revised: 08/26/2023] [Accepted: 08/27/2023] [Indexed: 09/04/2023]
Abstract
Multidrug resistance (MDR) Staphylococcus aureus is frequently isolated from food products, and can cause severe clinical infection. Bacteriophage (phage) therapy is a promising biocontrol agent against MDR S. aureus in food contamination and clinical infections. In this study, the antimicrobial susceptibility of 47 S. aureus isolates from three swine farms, two slaughterhouses, and four markets (Yangzhou, China) were evaluated. The biological characteristics of four lytic S. aureus phages were compared and the lytic activity of phage SapYZU15 against MDR S. aureus was assessed using milk, fresh pork and a mouse model of subcutaneous abscess. The results showed that 28 S. aureus isolates (59.6%, 28/47) exhibited multiple antibiotic resistance to at least three different classes of antibiotics. Compared to SapYZU01, SapYZU02, and SapYZU03, SapYZU15 had a shorter latent period (10 min), larger burst size (322.00 PFU/cell), broader host range, wider temperature stability (-80 to 50 °C), and pH stability. Furthermore, SapYZU15 significantly reduces the counts of S. aureus in milk and pork (5.69 and 1.16 log colony-forming unit/mL, respectively) at 25 °C and controls the growth of S. aureus at 4 °C. Compared to the mice infected with S. aureus MRSA JCSC 4744 and cocktail (S. aureus YZUsa1, YZUsa4, YZUsa12, YZUsa14, and MRSA JCSC 4744), treatment with SapYZU15 led to faster tissue healing, less weight loss, and lower viable S. aureus counts in the murine abscess model. Moreover, prevention with SapYZU15 effectively inhibited abscess formation through a synergistic effect with pro-inflammatory cytokines. Consequently, our results suggest that SapYZU15 is an effective strategy for controlling S. aureus contamination in food products, and possesses an immense potential to treat and prevent clinic infection caused by MDR S. aureus strains. The interactions and mechanisms between SapYZU15 and its bacterial host differed depending on the model, temperature, and multiplicity of infection (MOI).
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Affiliation(s)
- Hua Wen
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Wenyuan Zhou
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China; College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - Ying Wu
- School of Public Health and Emergency Management, Southern University of Science and Technology, ShenZhen, Guangdong 518055, China
| | - Yajie Li
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Zhenwen Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Xuewen Gu
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Cuimei Wang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - Zhenquan Yang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
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Yuan Z, Wang J, Qu Q, Zhu Z, Xu M, Zhao M, Sun C, Peng H, Huang X, Dong Y, Dong C, Zheng Y, Yuan S, Li Y. Celastrol Combats Methicillin-Resistant Staphylococcus aureus by Targeting Δ 1 -Pyrroline-5-Carboxylate Dehydrogenase. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302459. [PMID: 37381655 PMCID: PMC10477891 DOI: 10.1002/advs.202302459] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/22/2023] [Indexed: 06/30/2023]
Abstract
The emergence and rapid spread of methicillin-resistant Staphylococcus aureus (MRSA) raise a critical need for alternative therapeutic options. New antibacterial drugs and targets are required to combat MRSA-associated infections. Based on this study, celastrol, a natural product from the roots of Tripterygium wilfordii Hook. f., effectively combats MRSA in vitro and in vivo. Multi-omics analysis suggests that the molecular mechanism of action of celastrol may be related to Δ1 -pyrroline-5-carboxylate dehydrogenase (P5CDH). By comparing the properties of wild-type and rocA-deficient MRSA strains, it is demonstrated that P5CDH, the second enzyme of the proline catabolism pathway, is a tentative new target for antibacterial agents. Using molecular docking, bio-layer interferometry, and enzyme activity assays, it is confirmed that celastrol can affect the function of P5CDH. Furthermore, it is found through site-directed protein mutagenesis that the Lys205 and Glu208 residues are key for celastrol binding to P5CDH. Finally, mechanistic studies show that celastrol induces oxidative stress and inhibits DNA synthesis by binding to P5CDH. The findings of this study indicate that celastrol is a promising lead compound and validate P5CDH as a potential target for the development of novel drugs against MRSA.
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Affiliation(s)
- Zhongwei Yuan
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Jun Wang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Qianwei Qu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Zhenxin Zhu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Marc Xu
- Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Mengmeng Zhao
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Chongxiang Sun
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Haixin Peng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Xingyu Huang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Yue Dong
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Chunliu Dong
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Yadan Zheng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
| | - Shuguang Yuan
- Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Yanhua Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical DevelopmentCollege of Veterinary MedicineNortheast Agricultural UniversityHarbin150030China
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Zheng T, Chen H, Wu C, Wang J, Cui M, Ye H, Feng Y, Li Y, Dong Z. Fabrication of Co-Assembly from Berberine and Tannic Acid for Multidrug-Resistant Bacteria Infection Treatment. Pharmaceutics 2023; 15:1782. [PMID: 37513970 PMCID: PMC10383063 DOI: 10.3390/pharmaceutics15071782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 07/30/2023] Open
Abstract
Long-term antibiotic use induces drug resistance in bacteria. This has given rise to the challenge of refractory infections, which have become a global health threat. Berberine (BBR) and tannic acid (TA) from plants exhibit promising antibacterial activities and may overcome antibiotic resistance. However, poor solubility and/or low penetration capability have limited their application. Carrier-free co-assembled nanocomposites composed entirely of BBR and TA exhibit improved or new properties and produce improved efficacy. Herein, we demonstrated that an ordered nanostructure could be spontaneously co-assembled by the solvent evaporation method using the two natural products. These co-assembled berberine-tannic acid nanoparticles (BBR-TA NPs) exhibited the best antibacterial effect compared with the corresponding physical mixture, pristine BBR, and some first-line antibiotics (benzylpenicillin potassium-BP and ciprofloxacin-Cip) against Staphylococcus aureus (S. aureus) and multidrug-resistant Staphylococcus aureus (MRSA). Even if the concentration of BBR-TA NPs was as low as 15.63 μg/mL, the antibacterial rate against S. aureus and MRSA was more than 80%. In addition to the synergistic effect of the two compounds, the antibacterial mechanism underlying the nanostructures was that they strongly adhered to the surface of the bacterial cell wall, thereby inducing cell membrane damage and intracellular ATP leakage. Furthermore, the in vivo wound healing effect of BBR-TA NPs was verified using an MRSA wound infection mouse model. The BBR-TA NPs achieved the best efficacy compared with BP and Cip. Moreover, cytotoxic and histopathological evaluations of mice revealed that the nanodrug had good biological safety. This facile and green co-assembly strategy for preparing nanoparticles provides a feasible reference for the clinical treatment of bacterial infection.
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Affiliation(s)
- Tingting Zheng
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Huan Chen
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Chenyang Wu
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Jinrui Wang
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Mengyao Cui
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Hanyi Ye
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Yifan Feng
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Ying Li
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100094, China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Beijing 100700, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing 100700, China
| | - Zhengqi Dong
- Drug Delivery Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100094, China
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Beijing 100700, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing 100700, China
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Yang Y, Su S, Liu S, Liu W, Yang Q, Tian L, Tan Z, Fan L, Yu B, Wang J, Hu Y. Triple-functional bone adhesive with enhanced internal fixation, bacteriostasis and osteoinductive properties for open fracture repair. Bioact Mater 2023; 25:273-290. [PMID: 36825223 PMCID: PMC9941416 DOI: 10.1016/j.bioactmat.2023.01.021] [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: 11/02/2022] [Revised: 01/18/2023] [Accepted: 01/28/2023] [Indexed: 02/11/2023] Open
Abstract
At present, effective fixation and anti-infection implant materials represent the mainstay for the treatment of open fractures. However, external fixation can cause nail tract infections and is ineffective for fixing small fracture fragments. Moreover, closed reduction and internal fixation during the early stage of injury can lead to potential bone infection, conducive to bone nonunion and delayed healing. Herein, we designed a bone adhesive with anti-infection, osteogenic and bone adhesion fixation properties to promote reduction and fixation of open fractures and subsequent soft tissue repair. It was prepared by the reaction of gelatin (Gel) and oxidized starch (OS) with vancomycin (VAN)-loaded mesoporous bioactive glass nanoparticles (MBGNs) covalently cross-linked with Schiff bases. Characterization and adhesion experiments were conducted to validate the successful preparation of the Gel-OS/VAN@MBGNs (GOVM-gel) adhesive. Meanwhile, in vitro cell experiments demonstrated its good antibacterial effects with the ability to stimulate bone marrow mesenchymal stem cell (BMSCs) proliferation, upregulate the expression of alkaline phosphatase (ALP) and osteogenic proteins (RunX2 and OPN) and enhance the deposition of calcium nodules. Additionally, we established a rat skull fracture model and a subcutaneous infection model. The histological analysis showed that bone adhesive enhanced osteogenesis, and in vivo experiments demonstrated that the number of inflammatory cells and bacteria was significantly reduced. Overall, the adhesive could promote early reduction of fractures and antibacterial and osteogenic effects, providing the foothold for treatment of this patient population.
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Affiliation(s)
- Yusheng Yang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Shenghui Su
- Department of Orthopaedics, Ningde Municipal Hospital, Ningde Normal University, Ningde, Fujian Province, 352100, China
| | - Shencai Liu
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Weilu Liu
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Qinfeng Yang
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Liangjie Tian
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Zilin Tan
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Lei Fan
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China,Corresponding author.
| | - Jian Wang
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China,Corresponding author.
| | - Yanjun Hu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China,Corresponding author.
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Li S, Wang M, Chen S, Ampomah-Wireko M, Gao C, Xia Z, Nininahazwe L, Qin S, Zhang E. Development of biaromatic core-linked antimicrobial peptide mimics: Substituent position significantly affects antibacterial activity and hemolytic toxicity. Eur J Med Chem 2023; 247:115029. [PMID: 36549113 DOI: 10.1016/j.ejmech.2022.115029] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/04/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
The development of bacterial resistance to the majority of clinically significant antimicrobials has made it more difficult to treat bacterial infections with conventional antibiotics. As part of ongoing research on antimicrobial peptide mimetics, a series of quaternary ammonium cationic compounds with various linkers were designed and synthesized, with some demonstrating high antibacterial activity against Gram-negative and Gram-positive bacteria. The structure-activity relationship study revealed that the spatial position of substituents had a significant impact on antibacterial activity and hemolytic toxicity. The best compound, 3e, has good antibacterial activity against Staphylococcus aureus [minimum inhibitory concentration (MIC = 1 μg/mL)] and the least hemolytic toxicity [hemolytic concentration (HC50 = 905 μg/mL)], is stable in mammalian body fluids, and rarely induces bacterial resistance. The mechanism study revealed that the membrane action mode may be its potential bactericidal mechanism, and it can effectively cause the accumulation of intracellular reactive oxygen species (ROS) for killing bacteria. Importantly, 3e can effectively reduce the load of methicillin-resistant Staphylococcus aureus (MRSA) in mouse skin and has a higher in vivo bactericidal efficiency than vancomycin. These findings highlight the significance of divergent linkers in quaternary ammonium cations as antimicrobial peptide mimics and the potential of these cations to treat bacterial infections.
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Affiliation(s)
- Sen Li
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Meng Wang
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Shengcong Chen
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Maxwell Ampomah-Wireko
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Chen Gao
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Ziwei Xia
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Lauraine Nininahazwe
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Shangshang Qin
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Zhengzhou, 450001, PR China.
| | - En Zhang
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou, 450001, PR China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Zhengzhou, 450001, PR China.
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Tong X, Li J, Wei R, Gong L, Ji X, He T, Wang R. RW-BP100-4D, a Promising Antimicrobial Candidate With Broad-Spectrum Bactericidal Activity. Front Microbiol 2022; 12:815980. [PMID: 35145500 PMCID: PMC8822125 DOI: 10.3389/fmicb.2021.815980] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/31/2021] [Indexed: 11/29/2022] Open
Abstract
With the rapid emergence and dissemination of antimicrobial resistance (AMR) genes in bacteria from animal, animal-derived food and human clinic, it is of great significance to develop new approaches to combat the multidrug-resistant bacteria. This study presented a short linear antimicrobial peptide RW-BP100-4D, which was derived from RW-BP100 (RRLFRRILRWL-NH2) by transforming the N-terminal 4th amino acid from L- to D-enantiomer. This modification remarkably reduced the peptide cytotoxicity to mammalian cells, as indicated by hemolytic and cytotoxicity assays. Meanwhile, the antimicrobial activity of RW-BP100-4D was improved against a more variety of Gram-positive and Gram-negative bacteria (sensitive and resistant) as well as fungi. Also, RW-BP100-4D showed strong in vitro anti-biofilm activity in a concentration-dependent manner, including inhibition of the biofilm-formation and dispersion of the mature biofilms of Staphylococcus aureus. RW-BP100-4D could be efficiently uptaken by bovine mammary epithelial cells (MAC-T) cells to eliminate the intracellular S. aureus ATCC29213 and Salmonella enterica ATCC13076. Moreover, RW-BP100-4D was highly effective in food disinfection of multiple bacterial contamination (including S. aureus, Listeria monocytogenesis, Escherichia coli O157: H7, Campylobacter jejuni, S. enterica, and Shewanella putrefaction, 3.61 ± 0.063 log reduction) on chicken meat, and could kill 99.99% of the methicillin-resistant Staphylococcus aureus (MRSA) strain in the mouse skin infection model. In summary, RW-BP100-4D is a promising antimicrobial candidate for application on food disinfection and local infection treatment. However, the protease-sensitivity of RW-BP100-4D and toxic effect at higher doses reduced the therapeutic effect of the candidate peptide in vivo and should be improved in the future studies.
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Affiliation(s)
- Xingqi Tong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Jun Li
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Ruicheng Wei
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Lan Gong
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Xing Ji
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Tao He
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- *Correspondence: Tao He,
| | - Ran Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- Ran Wang,
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Klopfenstein N, Cassat JE, Monteith A, Miller A, Drury S, Skaar E, Serezani CH. Murine Models for Staphylococcal Infection. Curr Protoc 2021; 1:e52. [PMID: 33656290 PMCID: PMC7935403 DOI: 10.1002/cpz1.52] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Staphylococcus aureus is a Gram-positive bacterium that colonizes almost every organ in humans and mice and is a leading cause of diseases worldwide. S. aureus infections can be challenging to treat due to widespread antibiotic resistance and their ability to cause tissue damage. The primary modes of transmission of S. aureus are via direct contact with a colonized or infected individual or invasive spread from a colonization niche in the same individual. S. aureus can cause a myriad of diseases, including skin and soft tissue infections (SSTIs), osteomyelitis, pneumonia, endocarditis, and sepsis. S. aureus infection is characterized by the formation of purulent lesions known as abscesses, which are rich in live and dead neutrophils, macrophages, and surrounded by a capsule containing fibrin and collagen. Different strains of S. aureus produce varying amounts of toxins that evade and/or elicit immune responses. Therefore, animal models of S. aureus infection provide a unique opportunity to understand the dynamics of organ-specific immune responses and modifications in the pathogen that could favor the establishment of the pathogen. With advances in in vivo imaging of fluorescent transgenic mice, combined with fluorescent/bioluminescent bacteria, we can use mouse models to better understand the immune response to these types of infections. By understanding the host and bacterial dynamics within various organ systems, we can develop therapeutics to eliminate these pathogens. This module describes in vivo mouse models of both local and systemic S. aureus infection. © 2021 Wiley Periodicals LLC. Basic Protocol 1: Murine model of Staphylococcus aureus subcutaneous infection Alternate Protocol: Murine tape stripping skin infection model Basic Protocol 2: Sample collection to determine skin structure, production of inflammatory mediators, and bacterial load Basic Protocol 3: Murine model of post-traumatic Staphylococcus aureus osteomyelitis Basic Protocol 4: Intravenous infection of the retro-orbital sinus Support Protocol: Preparation of the bacterial inoculum.
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Affiliation(s)
- Nathan Klopfenstein
- Division of Infectious Disease, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - James E Cassat
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee
| | - Andrew Monteith
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Anderson Miller
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Sydney Drury
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Eric Skaar
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee
| | - C Henrique Serezani
- Division of Infectious Disease, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee
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Salatin S, Jelvehgari M. Desirability function approach for development of a thermosensitive and bioadhesive nanotransfersome-hydrogel hybrid system for enhanced skin bioavailability and antibacterial activity of cephalexin. Drug Dev Ind Pharm 2020; 46:1318-1333. [PMID: 32598186 DOI: 10.1080/03639045.2020.1788068] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cellulitis is a common bacterial infection of the skin and soft tissues immediately beneath the skin. Despite the successful use of antibiotics in the treatment of infectious diseases, bacterial infections continue to impose significant global health challenges because of the rapid emergence of antibiotic resistance. The aim of this work was to develop an in situ hydrogel forming system containing highly permeable cephalexin-loaded nanotransfersomes (NTs), suitable for antibacterial drug delivery. Response surface design was applied for the optimization of NTs. Cephalexin NTs were prepared using thin-film hydration method and then embedded into a 3D hydrogel network. The in vitro antibacterial activity of the optimized NTs was assayed against indicator bacteria of Staphylococcus aureus (S. aureus). The drug permeation was evaluated using an ex vivo rat skin model. The in vivo efficacy of the cephalexin NT hydrogel was also determined against rat skin infection. The resulting data verified the formation of NTs, the size of which was approximately 192 nm. The cephalexin NTs exhibited higher antibacterial activity against S. aureus as compared to the untreated drug. The NT hydrogel improved drug penetration through the skin after 8 h. When applied on the rat skin for 10 days, the cephalexin NT hydrogel exhibited superior antibacterial activity with normal hair growth and skin appearance as compared with the plain drug hydrogel. These findings suggest that the cephalexin NT-hydrogel system can serve as a valuable drug delivery platform against bacterial infections.
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Affiliation(s)
- Sara Salatin
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mitra Jelvehgari
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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