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Zhang W, Wu W, Wang T, Wu Z, Li Y, Ding T, Fang Z, Tian D, He X, Huang F. Novel Supramolecular Hydrogel for Infected Diabetic Foot Ulcer Treatment. Adv Healthc Mater 2024:e2402092. [PMID: 39225408 DOI: 10.1002/adhm.202402092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 08/07/2024] [Indexed: 09/04/2024]
Abstract
Multifunctional responsive hydrogels hold significant promise for diabetic foot ulcer (DFU) treatment, though their complex design and manufacturing present challenges. This study introduces a novel supramolecular guanosine-phenylboronic-chlorogenic acid (GBC) hydrogel developed using a dynamic covalent strategy. The hydrogel forms through guanosine quadruplex assembly in the presence of potassium ions and chlorogenic acid (CA) linkage via dynamic borate bonds. GBC hydrogels exhibit pH and glucose responsiveness, releasing more chlorogenic acid under acidic and high glucose conditions due to borate bond dissociation and G-quadruplex (G4) hydrogel disintegration. Experimental results indicate that GBC hydrogels exhibit good self-healing, shear-thinning, injectability, and swelling properties. Both in vitro and in vivo studies demonstrate the GBC hydrogel's good biocompatibility, ability to eliminate bacteria and reactive oxygen species (ROS), facilitate macrophage polarization from the M1 phenotype to the M2 phenotype (decreasing CD86 expression and increasing CD206 expression), exhibit anti-inflammatory effects (reducing TNF-α expression and increasing IL-10 expression), and promote angiogenesis (increasing VEGF, CD31, and α-SMA expression). Thus, GBC hydrogels accelerate DFU healing and enhance tissue remodeling and collagen deposition. This work provides a new approach to developing responsive hydrogels to expedite DFU healing.
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Affiliation(s)
- Wenbiao Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
| | - Weiwei Wu
- Department of Anaesthesia, The First Affiliated Hospital of Anhui Medical University North district, Anhui Public Health Clinical Center, Hefei, Anhui, 230011, China
| | - Tao Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
| | - Zhiwei Wu
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
| | - Yang Li
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
| | - Tao Ding
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
| | - Zhennan Fang
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
| | - Dasheng Tian
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
| | - Xiaoyan He
- School of Life Sciences, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Fei Huang
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
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Sathiyamoorthi E, Lee JH, Lee J. Antibacterial and antibiofilm activity of halogenated phenylboronic acids against Vibrio parahaemolyticus and Vibrio harveyi. Front Cell Infect Microbiol 2024; 14:1340910. [PMID: 38606300 PMCID: PMC11007048 DOI: 10.3389/fcimb.2024.1340910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 03/15/2024] [Indexed: 04/13/2024] Open
Abstract
Vibrios are associated with live seafood because they are part of the indigenous marine microflora. In Asia, foodborne infections caused by Vibrio spp. are common. In recent years, V. parahaemolyticus has become the leading cause of all reported food poisoning outbreaks. Therefore, the halogenated acid and its 33 derivatives were investigated for their antibacterial efficacy against V. parahaemolyticus. The compounds 3,5-diiodo-2-methoxyphenylboronic acid (DIMPBA) and 2-fluoro-5-iodophenylboronic acid (FIPBA) exhibited antibacterial and antibiofilm activity. DIMPBA and FIPBA had minimum inhibitory concentrations of 100 μg/mL for the planktonic cell growth and prevented biofilm formation in a dose-dependent manner. Both iodo-boric acids could diminish the several virulence factors influencing the motility, agglutination of fimbria, hydrophobicity, and indole synthesis. Consequently, these two active halogenated acids hampered the proliferation of the planktonic and biofilm cells. Moreover, these compounds have the potential to effectively inhibit the presence of biofilm formation on the surface of both squid and shrimp models.
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Affiliation(s)
| | | | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Republic of Korea
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Esteban-Herrero G, Álvarez B, Santander RD, Biosca EG. Screening for Novel Beneficial Environmental Bacteria for an Antagonism-Based Erwinia amylovora Biological Control. Microorganisms 2023; 11:1795. [PMID: 37512967 PMCID: PMC10383364 DOI: 10.3390/microorganisms11071795] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Erwinia amylovora, the bacterial species responsible for fire blight, causes major economic losses in pome fruit crops worldwide. Chemical control is not always effective and poses a serious threat to the environment and human health. Social demands for eco-sustainable and safe control methods make it necessary to search for new biocontrol strategies such as those based on antagonists. A bacterial collection from different fire blight-free Mediterranean environments was tested for antagonistic activity against Spanish strains of E. amylovora. Antagonistic assays were carried out in vitro in culture medium and ex vivo in immature loquat and pear fruits. Results revealed that 12% of the 82 bacterial isolates tested were able to inhibit the growth of several strains of the pathogen. Some of the isolates also maintained their antagonistic activity even after chloroform inactivation. Selected isolates were further tested ex vivo, with several of them being able to delay and/or reduce fire blight symptom severity in both loquats and pears and having activity against some E. amylovora strains. The isolates showing the best antagonism also produced different hydrolases linked to biocontrol (protease, lipase, amylase, and/or DNAse) and were able to fix molecular nitrogen. Based on this additional characterization, four biocontrol strain candidates were further selected and identified using MALDI-TOF MS. Three of them were Gram-positive bacteria belonging to Bacillus and Paenarthrobacter genera, and the fourth was a Pseudomonas strain. Results provide promising prospects for an improvement in the biological control strategies against fire blight disease.
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Affiliation(s)
| | - Belén Álvarez
- Departamento de Microbiología y Ecología, Universitat de València (UV), 46100 Valencia, Spain
- Departamento de Investigación Aplicada y Extensión Agraria, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario (IMIDRA), 28805 Madrid, Spain
| | - Ricardo D Santander
- Departamento de Microbiología y Ecología, Universitat de València (UV), 46100 Valencia, Spain
- Irrigated Agriculture Research and Extension Center, Washington State University, Prosser, WA 99350, USA
| | - Elena G Biosca
- Departamento de Microbiología y Ecología, Universitat de València (UV), 46100 Valencia, Spain
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Gou J, Lu Y, Xie M, Tang X, Chen L, Zhao J, Li G, Wang H. Antimicrobial activity in Asterceae: The selected genera characterization and against multidrug resistance bacteria. Heliyon 2023; 9:e14985. [PMID: 37151707 PMCID: PMC10161380 DOI: 10.1016/j.heliyon.2023.e14985] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 02/20/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023] Open
Abstract
Plants from the Asteraceae family are widely used as ethno medicines to treatment parasitic, malaria, hematemesis, pruritus, pyretic, anthelmintic, wound healing. The aim of this review is to provide an overview of Asteraceae plants antimicrobial activity. The most relevant results from the published studies are summarized and discussed. The species in genus of Artemisia, Echinacea, Centaurea, Baccharis, and Calendula showed antimicrobial activity. Most of these species are usually used as ethno medicines to treat infection, inflammation, and parasitics. The effective part or component for antimicrobial was essential oil and crude extract, and essential oil attracted more attention. It was also reported that nanoparticles coated with crude extract were effective against multidrug resistant bacteria. For multidrug resistant bacteria study, the species in Armtemisia were the most investigated, and Staphylococcus aureus and Escherichia coli were the most studied multidrug resistant strains. The antimicrobial activity was evaluated mainly based on the results of minimum inhibitory concentration (MIC). Few reports have been reported on minimum bactericide concentration (MBC) and its antibacterial mechanisms. According to the reported study results, some plants in Asteraceae have the potential to be developed as bacteriostatic agents and against multidrug resistant bacteria. However, most studies are still in vitro, further clinical and applied studies are needed.
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Du SS, Luo XF, An JX, Zhang ZJ, Zhang SY, Wang YR, Ding YY, Jiang WQ, Zhang BQ, Ma Y, Zhou Y, Hu YM, Liu YQ. Exploring boron applications in modern agriculture: Antifungal activities and mechanisms of phenylboronic acid derivatives. PEST MANAGEMENT SCIENCE 2023. [PMID: 36914877 DOI: 10.1002/ps.7451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/30/2023] [Accepted: 03/14/2023] [Indexed: 05/06/2023]
Abstract
BACKGROUND The unreasonable use of chemical fungicides causes common adverse consequences that not only affect the environment, but also cause resistance and resurgence problems of plant pathogens, which are extremely harmful to human health, the economy, and the environment. Based on the rich biological activities of boron-based compounds, 82 phenylboronic acid derivatives were selected and their antifungal activities against six agricultural plant pathogens were determined. Combined with transcriptomics tools, the mechanism of action of compound A49 (2-chloro-5-trifluoromethoxybenzeneboronic acid) against Botrytis cinerea Pers (B. cinerea) was studied. RESULTS The EC50 values of compounds A24, A25, A30, A31, A36, A41, A49 and B23 against all six fungi were under 10 μg/mL. Compound A49 displayed significant activity against B. cinerea (EC50 = 0.39 μg/mL), which was better than that of commercial fungicide boscalid (EC50 = 0.55 μg/mL). A49 not only inhibited the germination of B. cinerea spores, but also caused abnormal cell morphology, loss of cell membrane integrity, enhanced cell membrane permeability, and accumulation of intracellular reactive oxygen species. Further findings showed that A49 reduced cellular antioxidant activity, and peroxidase and catalase activities. Transcriptomic results indicated that A49 could degrade intracellular redox processes and alter the metabolism of some amino acids. Meanwhile, A49 showed obvious activity in vivo and low cytotoxicity to mammal cells. CONCLUSION The boron-containing small molecule compounds had high efficiency and broad-spectrum antifungal activities against six plant pathogens, and are expected to be candidate compounds for a new class of antifungal drugs. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Sha-Sha Du
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Xiong-Fei Luo
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Jun-Xia An
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
- State Key Laboratory of Grassland Agroecosystems, Lanzhou University, Lanzhou, China
| | - Zhi-Jun Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Shao-Yong Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, China
| | - Yi-Rong Wang
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Yan-Yan Ding
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Wei-Qi Jiang
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Bao-Qi Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Yue Ma
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Yong Zhou
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Yong-Mei Hu
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou, People's Republic of China
- State Key Laboratory of Grassland Agroecosystems, Lanzhou University, Lanzhou, China
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, China
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