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Zhang H, Qin L, Jin C, Ju H, Jiang R, Li L, Zhang H, Gao W, Wei X, Dong H, Lu F, Lv G. Molecular Characteristics and Antibiotic Resistance of Staphylococcus aureus Isolated from Patient and Food Samples in Shijiazhuang, China. Pathogens 2022; 11:1333. [PMID: 36422585 PMCID: PMC9695393 DOI: 10.3390/pathogens11111333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 10/29/2023] Open
Abstract
Staphylococcus aureus (S. aureus) is a common opportunistic and zoonotic pathogen in the world and could easily cause human infections and food contaminations. This study investigated the sequence typing and resistance profiles of S. aureus isolates from patient and food samples in Shijiazhuang, China. A total of 101 S. aureus isolates were distributed into six clonal complexes (CCs) and 16 singletons. A total of 86 patient isolates were distributed into six clonal CCs and 12 singletons, including a new ST. CC59, CC5, CC22, and CC398 were the predominant CCs of patient isolates. A total of 15 foodborne S. aureus isolates were distributed into 3 CCs and 4 STs, and CC1 was the most prevalent CC. Moreover, 101 S. aureus isolates had high resistance to penicillin and low resistance to chloramphenicol and rifampicin. A total of 39 strains of methicillin-resistant Staphylococcus aureus (MRSA) were detected in this study, including thirty-eight strains of patient isolates (44.2%, 38/86) and one strain of food isolates (6.7%, 1/15). MRSA-ST5, MRSA-ST59, and MRSA-ST239 were the predominant MRSA isolates in hospitals. The present study explained the relationship between S. aureus isolated from patient and food samples and indicated the risks of S. aureus in infectious diseases.
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Affiliation(s)
- Han Zhang
- Basic Medicine College, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Liyun Qin
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
- Hebei Key Laboratory of Unidentifiable Bacteria, Shijiazhuang 050011, China
| | - Caiping Jin
- Basic Medicine College, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Huidong Ju
- College of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China
| | - Ruiping Jiang
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
- Hebei Key Laboratory of Unidentifiable Bacteria, Shijiazhuang 050011, China
| | - Lijie Li
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
- Hebei Key Laboratory of Unidentifiable Bacteria, Shijiazhuang 050011, China
| | - Hong Zhang
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
- Hebei Key Laboratory of Unidentifiable Bacteria, Shijiazhuang 050011, China
| | - Weili Gao
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
- Hebei Key Laboratory of Unidentifiable Bacteria, Shijiazhuang 050011, China
| | - Xiuping Wei
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
| | - Hongyan Dong
- Basic Medicine College, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Fei Lu
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
- Hebei Key Laboratory of Unidentifiable Bacteria, Shijiazhuang 050011, China
| | - Guoping Lv
- Basic Medicine College, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
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Cao L, Lv J, Zhao X, Wang J, Ma L. Effectual components of Polygonum ciliinerve protects against Staphylococcus aureus infection with immunomodulatory functions in C57BL/6 mice1. Acta Cir Bras 2018; 33:983-990. [PMID: 30517325 DOI: 10.1590/s0102-865020180110000005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/16/2018] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To investigate the efficacy and mechanisms of root tuber of Polygonum ciliinerve (Nakai) ohwi (rPC) which has been used to treat bacterial infection in traditional Chinese medicine. METHODS With the mouse model of Staphylococcus aureus (S. aureus) pneumonia, the phenotype of rPC treated mice, including body weight, mortality, lung slices and bacterial burden were evaluated. Furthermore, inflammatory factors in bronchoalveolar lavage (BAL) were determined by ELISA and the distribution of T cells in lung was assessed by immunofluorescence assay. RESULTS rPC treatment could dose-dependently reduce weight loss and mortality in S. aureus-infected mice. Upon 10 mg/ml rPC treatment, S. aureus-infected mice showed about 8 grams increase in body weight (P<0.001) and 50% enhancement in mortality. The integrity of lung tissue and bacterial burden were also improved by rPC treatment. Moreover, rPC was found to modulate the immune response in infection. CONCLUSION rPC has therapeutic potential for S. aureus infections and pneumonia with immunomodulatory functions.
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Affiliation(s)
- Lanxiu Cao
- PhD, Department of Chinese Materia Medica, Shanxi University, Traditional Chinese Medicine, Shanxi, China. Conception and design of the study, acquisition of data, technical procedures, manuscript preparation and writing, final approval
| | - Juan Lv
- Graduate student, Department of Chinese Materia Medica, Shanxi University, Traditional Chinese Medicine, Shanxi, China. Technical procedures, acquisition of data
| | - Xian Zhao
- Graduate student, Department of Chinese Materia Medica, Shanxi University, Traditional Chinese Medicine, Shanxi, China. Technical procedures, acquisition of data
| | - Jiang Wang
- PhD, Department of Chinese Materia Medica, Shanxi University, Traditional Chinese Medicine, Shanxi province, China. Statistical analysis, interpretation of data
| | - Li Ma
- Graduate student, Department of Chinese Materia Medica, Shanxi University, Traditional Chinese Medicine, Shanxi, China. Technical procedures, acquisition of data
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Zhang R, Li S, Zhang XK, Wang Y, Yang LY, Zeng H, Yan DP, Zou QM, Zuo QF. Mechanisms of fibronectin-binding protein A (FnBPA 110-263) vaccine efficacy in Staphylococcus aureus sepsis versus skin infection. Clin Immunol 2018; 194:1-8. [PMID: 29906512 DOI: 10.1016/j.clim.2018.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/16/2018] [Accepted: 05/30/2018] [Indexed: 01/20/2023]
Abstract
Increasing rates of life-threatening infections and decreasing susceptibility to antibiotics urge an effective vaccine targeting Staphylococcus aureus. Here we investigate the role of cellular immunity in FnBPA110-263 mediated protection in Staphylococcus aureus infection. This study revealed FnBPA110-263 broadly protected mice from seven FnBPA isotypes strains in the sepsis model. FnBPA110-263 immunized B-cell deficient mice were protected against lethal challenge, while T-cell deficient mice were not. Reconstituting mice with FnBPA110-263 specific CD4+ T-cells conferred antigen specific protection. In vitro assays indicated that isolated FnBPA110-263 specific splenocytes from immunized mice produced abundant IL-17A. IL-17A deficient mice were not protected from a lethal challenge by FnBPA110-263 vaccination. Moreover, neutralizing IL-17A, but not IFN-γ,reverses FnBPA110-263-induced protective efficacy in sepsis and skin infection model. These findings suggest that IL-17A producing Th17 cells play an essential role in FnBPA110-263 vaccine-mediated defense against S. aureus sepsis and skin infection in mice.
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Affiliation(s)
- Rui Zhang
- Clinical Laboratory, ChengDu Military General Hospital, Chengdu 610083, PR China
| | - Sun Li
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China
| | - Xiao-Kai Zhang
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China
| | - Yu Wang
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China
| | - Liu-Yang Yang
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China
| | - Hao Zeng
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China
| | - Da-Peng Yan
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China
| | - Quan-Ming Zou
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China..
| | - Qian-Fei Zuo
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing 400038, PR China..
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Masoud-Landgraf L, Johler S, Badura A, Feierl G, Luxner J, Wagner-Eibel U, Eber E, Zarfel G, Grisold AJ. Genetic and Phenotypic Characteristics of Staphylococcus aureus Isolates from Cystic Fibrosis Patients in Austria. Respiration 2015; 89:390-5. [PMID: 25825042 DOI: 10.1159/000377707] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 02/02/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Cystic fibrosis (CF) is the most common life-limiting inherited disease in Caucasian populations. While pathological changes can be seen in various organs, morbidity and mortality are mainly related to the respiratory tract, with patients suffering from chronic bronchopulmonary infections with characteristic pathogens including Staphylococcus aureus. OBJECTIVES To date, there is only very limited data on the genetic and phenotypic characteristics of S. aureus in CF patients. Therefore, in our study, we characterized 58 S. aureus isolates collected from CF patients in Austria by spa typing, DNA microarray profiling, as well as antimicrobial susceptibility testing in order to determine common genomic and antimicrobial resistance features. The tested strain collection exhibited high genomic diversity. RESULTS The 58 isolates were assigned to 16 clonal complexes and 48 spa types and differed greatly regarding their virulence and resistance gene profiles. The predominant clonal complexes were MLST CC30 (22%), CC15 (16%), CC45 (14%), and CC5 (12%), complexes that are highly prevalent worldwide among S. aureus strains isolated from humans colonized or infected with S. aureus. DNA microarray profiles showed a wide variety of genes encoding antimicrobial resistance and virulence factors such as various leukocidins, haemolysins, enterotoxins, exfoliative toxins, toxic shock syndrome toxin, as well as genes involved in adhesion and immune evasion. CONCLUSIONS While a large number of strains exhibited resistance to one or several antimicrobial agents, methicillin-resistant S. aureus was found at a low prevalence of 3% (n = 2) only. The two methicillin-resistant S. aureus isolates were assigned to CC152/t355 (SCCmecV) and CC5/t001 (SCCmecI). This is the first study to genetically characterize S. aureus isolates in CF patients in Austria.
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Affiliation(s)
- Lilian Masoud-Landgraf
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria
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Zuo QF, Cai CZ, Ding HL, Wu Y, Yang LY, Feng Q, Yang HJ, Wei ZB, Zeng H, Zou QM. Identification of the immunodominant regions of Staphylococcus aureus fibronectin-binding protein A. PLoS One 2014; 9:e95338. [PMID: 24736634 PMCID: PMC3988184 DOI: 10.1371/journal.pone.0095338] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 03/26/2014] [Indexed: 12/25/2022] Open
Abstract
Staphylococcus aureus is an opportunistic bacterial pathogen responsible for a diverse spectrum of human diseases and a leading cause of nosocomial and community-acquired infections. Development of a vaccine against this pathogen is an important goal. The fibronectin binding protein A (FnBPA) of S. aureus is one of multifunctional ‘microbial surface components recognizing adhesive matrix molecules' (MSCRAMMs). It is one of the most important adhesin molecules involved in the initial adhesion steps of S. aureus infection. It has been studied as potential vaccine candidates. However, FnBPA is a high-molecular-weight protein of 106 kDa and difficulties in achieving its high-level expression in vitro limit its vaccine application in S. aureus infection diseases control. Therefore, mapping the immunodominant regions of FnBPA is important for developing polyvalent subunit fusion vaccines against S. aureus infections. In the present study, we cloned and expressed the N-terminal and C-terminal of FnBPA. We evaluated the immunogenicity of the two sections of FnBPA and the protective efficacy of the two truncated fragments vaccines in a murine model of systemic S. aureus infection. The results showed recombinant truncated fragment F130-500 had a strong immunogenicity property and survival rates significantly increased in the group of mice immunized with F130-500 than the control group. We futher identified the immunodominant regions of FnBPA. The mouse antisera reactions suggest that the region covering residues 110 to 263 (F1B110-263) is highly immunogenic and is the immunodominant regions of FnBPA. Moreover, vaccination with F1B110-263 can generate partial protection against lethal challenge with two different S. aureus strains and reduced bacterial burdens against non-lethal challenge as well as that immunization with F130-500. This information will be important for further developing anti- S. aureus polyvalent subunit fusion vaccines.
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Affiliation(s)
- Qian-Fei Zuo
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Chang-Zhi Cai
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Hong-Lei Ding
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Yi Wu
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Liu-Yang Yang
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Qiang Feng
- Department of Biological Engineering and Chemical Engineering, Chongqing University of Education, Chongqing, PR China
| | - Hui-Jie Yang
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Zhen-Bo Wei
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, 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, Chongqing, PR China
- * E-mail: (HZ); (QMZ)
| | - Quan-Ming Zou
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
- * E-mail: (HZ); (QMZ)
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Cocchi P, Cariani L, Favari F, Lambiase A, Fiscarelli E, Gioffré F, d'Aprile A, Manso E, Taccetti G, Braggion C, Döring G, de Martino M, Campana S. Molecular epidemiology of meticillin-resistant Staphylococcus aureus in Italian cystic fibrosis patients: A national overview. J Cyst Fibros 2011; 10:407-11. [DOI: 10.1016/j.jcf.2011.06.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 06/03/2011] [Accepted: 06/16/2011] [Indexed: 10/18/2022]
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