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Zhang CY, Yu RJ, Wang LQ, Huang HY, Xiao MQ, Duan XM, Wang JT, Liao XW, Xiong YS. Synthesis and evaluation of sulfonyl-substituted ruthenium complex as potential antibacterial activity against Staphylococcus aureus. NEW J CHEM 2022. [DOI: 10.1039/d2nj02117j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new ruthenium complex was synthesized, which can effectively prevent the development of S. aureus drug-resistance and with high antibacterial activity in vitro and in vivo.
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Affiliation(s)
- Chun-Yan Zhang
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Ru-Jian Yu
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Li-Qiang Wang
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Hai-Yan Huang
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Meng-Qi Xiao
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Xue-Min Duan
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Jin-Tao Wang
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Xiang-Wen Liao
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Yan-Shi Xiong
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
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2
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Wang L, Huang B, Duan X, Jiang G, Xiong Y, Zhong S, Wang J, Liao X. The development of three ruthenium-based antimicrobial metallodrugs: Design, synthesis, and activity evaluation against Staphylococcus aureus. JOURNAL OF CHEMICAL RESEARCH 2021. [DOI: 10.1177/17475198211055098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The development of new classes of antimicrobial is urgently needed due to the widespread occurrence of multi-resistant pathogens. In this study, three novel ruthenium complexes: [Ru(dmob)2(BTPIP)](PF6)2 (Ru(II)-1), [Ru(dbp)2(BTPIP)](PF6)2 (Ru(II)-2), and [Ru(dpa)2(BTPIP)](PF6)2 (Ru(II)-3) (dpa = 2,2’-dipyridylamine, dmob = 4,4’-dimethoxy-2,2’-bipyridyl, dbp = 4,4’-di- tert-butyl-2,2’-dipyridyl, BTPIP = 4-(benzo[ b]thiophen-2-yl)phenyl-1 H-imidazo[4,5- f][1,10]phenanthroline) are synthesized and investigated as antimicrobial metallodrugs. We demonstrate that all three complexes have significant antimicrobial activity against Staphylococcus aureus by testing their minimal inhibitory concentrations = 0.0015–0.0125 mg/mL. The antibacterial activity of the best active complex Ru(II)-3 is 13 times that of ofloxacin (minimal inhibitory concentration = 19.5 μg/mL). Importantly, Ru(II)-3 not only increases the susceptibility of Staphylococcus aureus to existing common antibiotics but also shows noticeably delayed and decreased resistance in Staphylococcus aureus since the minimal inhibitory concentration values of Ru(II)-3 only increased eightfold times after 20 passages. Furthermore, the biofilms formation and rabbit erythrocyte hemolysis assays verified that Ru(II)-3 also efficiently inhibit the biofilm formation and toxin secretion of Staphylococcus aureus.
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Affiliation(s)
- Liqiang Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, P.R. China
| | - Bin Huang
- School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua, P.R. China
| | - Xuemin Duan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, P.R. China
| | - Guijuan Jiang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, P.R. China
| | - Yanshi Xiong
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, P.R. China
| | - Shengfei Zhong
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, P.R. China
| | - Jintao Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, P.R. China
| | - Xiangwen Liao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, P.R. China
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3
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Liao X, Wang J, Jiang G, Lingyu M, Jiang G, Wang J, Huang B. Identification of ruthenium (II) complexes with furan-substituted ligands as possible antibacterial agents against Staphylococcus aureus. Chem Biol Drug Des 2021; 98:885-893. [PMID: 34453495 DOI: 10.1111/cbdd.13943] [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: 06/27/2021] [Revised: 07/23/2021] [Accepted: 08/01/2021] [Indexed: 11/28/2022]
Abstract
The growing burden of antibiotic resistance worldwide calls for developing new classes of antimicrobial strategy. Recently years, the use of adjuvants that rescue antibiotics identified as a promising strategy for overcoming bacterial resistance. In this study, three ruthenium complexes functionalized with furan-substituted ligands([Ru(phen)2 (CAPIP)](ClO4 )2 (Ru(Ⅱ)-1), [Ru(dmp)2 (CAPIP)](ClO4 )2 (Ru(Ⅱ)-2) and [Ru(dmb)2 (CAPIP)](ClO4 )2 (Ru(Ⅱ)-3) (dmb=4,4'-dimethyl-2,2'-bipyridine, phen=1,10-phenanthroline, dmp=2,9-dimethyl-1,10-phenanthroline, CAPIP=(E)-2- (2-(furan-2-yl)vinyl)-1H-imidazo[4,5-f][1,10]phenanthroline)) were designed and synthesized. The antimicrobial activities of all compounds against S. aureus were assessed by growth inhibition assays. The MIC values of three complexes range from 0.015 to 0.050 mg/ml. Subsequently, the Ru(II)-2 complexes which exhibited strongest antibacterial activity were further tested against bacteria biofilms formation and toxin secretion. In addition, aimed to test whether ruthenium complexes have potential value as antimicrobial adjuvants, the synergism between Ru(Ⅱ)-2 and some antibiotics against S. aureus were examined through checkerboard method. Interestingly, Ru(Ⅱ)-2 could not only effectively inhibit biofilms formation of S. aureus and inhibit the hemolysin toxin secretion, but also selectivity show synergism with two common antibiotics. More importantly, mouse infection study also verified Ru(Ⅱ)-2 were highly effective against S. aureus in vivo.
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Affiliation(s)
- Xiangwen Liao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Jing Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Guijuan Jiang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Mao Lingyu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jintao Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Bin Huang
- School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua, China
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4
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Liao X, Liu L, Tan Y, Jiang G, Fang H, Xiong Y, Duan X, Jiang G, Wang J. Synthesis of ruthenium complexes functionalized with benzothiophene and their antibacterial activity against Staphylococcus aureus. Dalton Trans 2021; 50:5607-5616. [PMID: 33908929 DOI: 10.1039/d0dt04258g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
New effective antimicrobial agents with novel modes of action are urgently needed due to the continued emergence of drug-resistant bacteria. Here, three ruthenium complexes functionalized with benzothiophene: [Ru(phen)2(BTPIP)](ClO4)2 (Ru(II)-1), [Ru(dmp)2(BTPIP)](ClO4)2 (Ru(II)-2) and [Ru(dmb)2(BTPIP)](ClO4)2 (Ru(II)-3) (dmb = 4,4'-dimethyl-2,2'-bipyridine, phen = 1,10-phenanthroline, dmp = 2,9-dimethyl-1,10-phenanthroline) have been synthesized and their antimicrobial activities in vitro were assessed. Minimum inhibitory concentration (MIC) assays indicated that the three Ru(II)-1, Ru(II)-2 and Ru(II)-3 complexes all showed antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa. The most active Ru(II)-3 complex was further tested against biofilms. Furthermore, it was also tested whether complex Ru(II)-3 could serve as an antibacterial adjuvant. Interestingly, the checkerboard data showed that Ru(II)-3 selectively exhibited synergism with aminoglycoside antibiotics. More importantly, the observed synergetic effect might be attributed to the inhibition of the regulatory function of SaCcpA. Finally, in vivo bacterial infection treatment studies through a murine skin infection model and skin irritation test were also conducted. All in all, these results confirmed that ruthenium complexes functionalized with benzothiophene have good antimicrobial activity against Staphylococcus aureus.
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Affiliation(s)
- Xiangwen Liao
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, China.
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Shariati A, Dadashi M, Moghadam MT, van Belkum A, Yaslianifard S, Darban-Sarokhalil D. Global prevalence and distribution of vancomycin resistant, vancomycin intermediate and heterogeneously vancomycin intermediate Staphylococcus aureus clinical isolates: a systematic review and meta-analysis. Sci Rep 2020; 10:12689. [PMID: 32728110 PMCID: PMC7391782 DOI: 10.1038/s41598-020-69058-z] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 06/15/2020] [Indexed: 12/22/2022] Open
Abstract
Vancomycin-resistant Staphylococcus aureus (VRSA), Vancomycin-intermediate S. aureus (VISA) and heterogeneous VISA (hVISA) are subject to vancomycin treatment failure. The aim of the present study was to determine their precise prevalence and investigate prevalence variability depending on different years and locations. Several international databases including Medline (PubMed), Embase and Web of Sciences were searched (data from 1997 to 2019) to identify studies that addressed the prevalence of VRSA, VISA and hVISA among human clinical isolates around the world. Subgroup analyses and meta-regression were conducted to indicate potential source of variation. Publication bias was assessed using Egger's test. Statistical analyses were conducted using STATA software (version 14.0). Data analysis showed that VRSA, VISA and hVISA isolates were reported in 23, 50 and 82 studies, with an overall prevalence of 1.5% among 5855 S. aureus isolates, 1.7% among 22,277 strains and 4.6% among 47,721 strains, respectively. The overall prevalence of VRSA, VISA, and hVISA before 2010 was 1.2%, 1.2%, and 4%, respectively, while their prevalence after this year has reached 2.4%, 4.3%, and 5.3%. The results of this study showed that the frequency of VRSA, VISA and hVISA after 2010 represent a 2.0, 3.6 and 1.3-fold increase over prior years. In a subgroup analysis of different strain origins, the highest frequency of VRSA (3.6%) and hVISA (5.2%) was encountered in the USA while VISA (2.1%) was more prevalent in Asia. Meta-regression analysis showed significant increasing of VISA prevalence in recent years (p value ≤ 0.05). Based on the results of case reports (which were not included in the calculations mentioned above), the numbers of VRSA, VISA and hVISA isolates were 12, 24 and 14, respectively, among different continents. Since the prevalence of VRSA, VISA and hVISA has been increasing in recent years (especially in the Asian and American continents), rigorous monitoring of vancomycin treatment, it's the therapeutic response and the definition of appropriate control guidelines depending on geographical regions is highly recommended and essential to prevent the further spread of vancomycin-resistant S. aureus.
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Affiliation(s)
- Aref Shariati
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - Masoud Dadashi
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
- Non Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
| | - Majid Taati Moghadam
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - Alex van Belkum
- Open Innovation and Partnerships, Route de Port Michaud, 38390, La Balme Les Grottes, France
| | - Somayeh Yaslianifard
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Davood Darban-Sarokhalil
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Bu S, Jiang G, Jiang G, Liu J, Lin X, Shen J, Xiong Y, Duan X, Wang J, Liao X. Antibacterial activity of ruthenium polypyridyl complexes against Staphylococcus aureus and biofilms. J Biol Inorg Chem 2020; 25:747-757. [PMID: 32564223 DOI: 10.1007/s00775-020-01797-w] [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] [Received: 04/19/2020] [Accepted: 05/28/2020] [Indexed: 12/29/2022]
Abstract
There is clearly a need for the development of new classes of antimicrobials to fight against multidrug-resistant bacteria. Here, we designed and synthesized of three ruthenium polypyridyl complexes: [Ru(bpy)2(BTPIP)](ClO4)2 (Ru(II)-1), [Ru(bpy)2(ETPIP)](ClO4)2 (Ru(II)-2) and [Ru(bpy)2(CAPIP)](ClO4)2 (Ru(II)-3) (N-N = bpy = 2,2'-bipyridine), their antimicrobial activities against S. aureus were assessed. The lead complexes of this set, Ru(II)-1(MIC = 0.016 mg/mL), was tested against biofilm. We also investigated whether bacteria can easily develop resistance to Ru(II)-1. The result demonstrated that S. aureus could not easily develop resistance to the ruthenium complexes. In addition, aimed to test whether ruthenium complexes treatment could increase the susceptibility of S. aureus to antibiotics, the synergism between Ru(II)-1 and common antibiotics against S. aureus were investigated using the checkerboard method. Interesting, Ru(II)-1 could increased the susceptibility of S. aureus to some aminoglycoside antibiotics(kanamycin and gentamicin). Finally, in vivo bacterial infection treatment studies were also conducted through murine skin infection model. These results confirmed ruthenium complexes have good antimicrobial activity in vitro and in vivo.
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Affiliation(s)
- Simeng Bu
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Guijuan Jiang
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Jinyao Liu
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Xiaoli Lin
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Jihong Shen
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Yanshi Xiong
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Xuemin Duan
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Jintao Wang
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China.
| | - Xiangwen Liao
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, China.
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Huang Q, Zhang Z, Li H, Guo Y, Liao X, Li H, Zhou H, Xia W. Identification of a Novel Inhibitor of Catabolite Control Protein A from Staphylococcus aureus. ACS Infect Dis 2020; 6:347-354. [PMID: 32027109 DOI: 10.1021/acsinfecdis.9b00465] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Catabolite control protein A is a highly conserved transcriptional regulator in Gram-positive bacteria. Herein, we report a specific small-molecule inhibitor of Staphylococcus aureus catabolite control protein A (SaCcpA). The compound abrogates the regulatory function of SaCcpA, resulting in decreased expression of an S. aureus major cytotoxin, α-hemolysin. The observed synergism between the compound and antibiotics against S. aureus suggests its potential application in a combination therapy to combat antimicrobial resistance.
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Affiliation(s)
- Qi Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Zhemin Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Huinan Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Yu Guo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Xiangwen Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
| | - Hongyan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, 132 Outer Ring East Road, Guangzhou, Guangdong 510006, China
| | - Wei Xia
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, Guangdong 510275, China
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Liao X, Jiang G, Wang J, Duan X, Liao Z, Lin X, Shen J, Xiong Y, Jiang G. Two ruthenium polypyridyl complexes functionalized with thiophen: synthesis and antibacterial activity against Staphylococcus aureus. NEW J CHEM 2020. [DOI: 10.1039/d0nj02944k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ruthenium polypyridyl complex Ru(ii)-2 could increase the susceptibility of S. aureus to the aminoglycoside antibiotic (kanamycin).
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Affiliation(s)
- Xiangwen Liao
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Guijuan Jiang
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Jintao Wang
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Xuemin Duan
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Zhouyuji Liao
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Xiaoli Lin
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Jihong Shen
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Yanshi Xiong
- School of Pharmacy
- Jiangxi Science & Technology Normal University
- Nanchang
- China
| | - Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin
- China
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Haertel B, von Woedtke T, Weltmann KD, Lindequist U. Non-thermal atmospheric-pressure plasma possible application in wound healing. Biomol Ther (Seoul) 2014; 22:477-90. [PMID: 25489414 PMCID: PMC4256026 DOI: 10.4062/biomolther.2014.105] [Citation(s) in RCA: 201] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 11/10/2014] [Accepted: 11/10/2014] [Indexed: 11/17/2022] Open
Abstract
Non-thermal atmospheric-pressure plasma, also named cold plasma, is defined as a partly ionized gas. Therefore, it cannot be equated with plasma from blood; it is not biological in nature. Non-thermal atmospheric-pressure plasma is a new innovative approach in medicine not only for the treatment of wounds, but with a wide-range of other applications, as e.g. topical treatment of other skin diseases with microbial involvement or treatment of cancer diseases. This review emphasizes plasma effects on wound healing. Non-thermal atmospheric-pressure plasma can support wound healing by its antiseptic effects, by stimulation of proliferation and migration of wound relating skin cells, by activation or inhibition of integrin receptors on the cell surface or by its pro-angiogenic effect. We summarize the effects of plasma on eukaryotic cells, especially on keratinocytes in terms of viability, proliferation, DNA, adhesion molecules and angiogenesis together with the role of reactive oxygen species and other components of plasma. The outcome of first clinical trials regarding wound healing is pointed out.
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Affiliation(s)
- Beate Haertel
- Department of Pharmaceutical Biology, Institute of Pharmacy, Ernst-Moritz-Arndt University of Greifswald, D17489 Greifswald, Germany
| | - Thomas von Woedtke
- Leibniz Institute of Plasma Science and Technology Greifswald e.V (INP), Felix-Hausdorff Str. 2, 17489 Greifswald, Germany
| | - Klaus-Dieter Weltmann
- Leibniz Institute of Plasma Science and Technology Greifswald e.V (INP), Felix-Hausdorff Str. 2, 17489 Greifswald, Germany
| | - Ulrike Lindequist
- Department of Pharmaceutical Biology, Institute of Pharmacy, Ernst-Moritz-Arndt University of Greifswald, D17489 Greifswald, Germany
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Surveillance of methicillin-resistant Staphylococcus aureus causing nosocomial infections in five medical centers of Monterrey, Nuevo León, México from 2005-2009. Arch Med Res 2013; 44:570-4. [PMID: 24051038 DOI: 10.1016/j.arcmed.2013.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 08/23/2013] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND AIMS Staphylococcus aureus is a principal cause of human bacterial infection worldwide. The dissemination of antibiotic resistance among S. aureus strains is very import in the treatment of Staphylococcal infections. We undertook this study to identify methicillin-resistant Staphylococcus aureus (MRSA) clones responsible for nosocomial infection in five medical centers in Monterrey, Nuevo León (N.L.), México from 2005-2009. METHODS One hundred ninety MRSA strains collected from 2005-2009 from five hospitals affiliated with the Instituto Mexicano del Seguro Social (IMSS) in Monterrey, N.L., México were characterized by antimicrobial susceptibility, pulsed field gel electrophoresis (PFGE) and Staphylococcal Cassette Chromosome mec (SCCmec) typing. RESULTS Only one clone was present in the five hospitals (clone C); this clone is strongly associated with the New York-Japan clone (SCCmec II) with a broad resistance profile. CONCLUSIONS This study clearly documented the high ability for dissemination and the persistence of the New York-Japan clone in these centers.
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Havaei SA, Azimian A, Fazeli H, Naderi M, Ghazvini K, Samiee SM, Masoumi Z, Akbari M. Genetic Characterization of Methicillin Resistant and Sensitive, Vancomycin Intermediate Staphylococcus aureus Strains Isolated from Different Iranian Hospitals. ISRN MICROBIOLOGY 2012; 2012:215275. [PMID: 23762750 PMCID: PMC3664199 DOI: 10.5402/2012/215275] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 11/22/2012] [Indexed: 11/23/2022]
Abstract
Background. Global concerns have been raised due to upward trend of Vancomycin Intermediate Staphylococcus aureus (VISA) and Vancomycin Resistant Staphylococcus aureus (VRSA) reports which mean casting doubt on the absolute effectiveness of the last line of antibiotic treatment for S. aureus, vancomycin. Hence, epidemiological evaluation can improve global health care policies. Methodology. 171 Isolates of Staphylococcus aureus were collected from different types of clinical samples in selected hospitals in Isfahan, Mashhad, and Tehran, Iran. Then, they were evaluated by agar screening, disk diffusion, and MIC method to determine their resistance to vancomycin and methicillin. The isolated VISA strains were then confirmed with genetic analysis by the evaluation of mecA and vanA genes, SCCmec, agr, and spa type, and also toxin profiles. MLST was also performed. Results and Conclusion. Our data indicated that 67% of isolated S. aureus strains were resistant to methicillin. Furthermore, five isolates (2.9%) had intermediate resistance to vancomycin (VISA). In contrast to usual association of VISA with MRSA strains, we found two isolates of MSSA-VISA. Therefore, our data suggests a probable parallel growing trend of VISA towards MSSA, along with MRSA strains. However, more samples are required to confirm these primarily data. Moreover, genetic analysis of the isolated VISA strains revealed that these strains are endemic Asian clones.
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Affiliation(s)
- Seyed Asghar Havaei
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, P.O. Box 73461-8174, Isfahan, Iran
| | - Amir Azimian
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, P.O. Box 73461-8174, Isfahan, Iran
| | - Hosein Fazeli
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, P.O. Box 73461-8174, Isfahan, Iran
| | - Mahmood Naderi
- Department of Medical Biotechnology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran, Iran
| | - Kiarash Ghazvini
- Department of Microbiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Siamak Mirab Samiee
- Food and Drug Laboratory Research Center, Ministry of Health and Medical Education, No. 408, Emam Khomeini Avenue, Tehran, Iran
- Reference Health Laboratories, Ministry of Health and Medical Education, Tehran, Iran
| | - Zahra Masoumi
- Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran, Iran
| | - Mojtaba Akbari
- Department of Epidemiology, School of Medicine, Isfahan University of Medical Sciences, P.O. Box 73461-8174, Isfahan, Iran
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