1
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Do S, Rebentish A, Ravichandran Kumar P. Case Report of Myroides odoratimimus Cellulitis in Chronic Venous Stasis Dermatitis With Literature Review. Cureus 2023; 15:e45319. [PMID: 37846255 PMCID: PMC10577044 DOI: 10.7759/cureus.45319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2023] [Indexed: 10/18/2023] Open
Abstract
Myroides spp.-induced cutaneous infections are rare, with only 17 reported cases in the literature. Myroides spp. behave like low-grade opportunistic pathogens, with symptomatic infections observed typically in severely immunocompromised patients and seldom in immunocompetent patients. In this paper, we present an immunocompetent 61-year old male with a past medical history of hypertension, hyperlipidemia, morbid obesity, and patient-reported peripheral neuropathy who presented to the transitional care clinic with bilateral lower extremity swelling and hemosiderin-pigmented dry wounds consistent with diagnosis of chronic venous stasis dermatitis with resolved secondary Myroides odoratimimus infection. Further literature review about Myroides spp. and its resistance mechanism, antibiotic susceptibility, and biofilm production are also included in this paper.
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Affiliation(s)
- Stephen Do
- Medicine, Touro University Nevada, Henderson, USA
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2
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Fröhlich C, Sørum V, Huber S, Samuelsen Ø, Berglund F, Kristiansson E, Kotsakis SD, Marathe NP, Larsson DGJ, Leiros HKS. Structural and biochemical characterization of the environmental MBLs MYO-1, ECV-1 and SHD-1. J Antimicrob Chemother 2021; 75:2554-2563. [PMID: 32464640 PMCID: PMC7443720 DOI: 10.1093/jac/dkaa175] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/27/2020] [Accepted: 04/06/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND MBLs form a large and heterogeneous group of bacterial enzymes conferring resistance to β-lactam antibiotics, including carbapenems. A large environmental reservoir of MBLs has been identified, which can act as a source for transfer into human pathogens. Therefore, structural investigation of environmental and clinically rare MBLs can give new insights into structure-activity relationships to explore the role of catalytic and second shell residues, which are under selective pressure. OBJECTIVES To investigate the structure and activity of the environmental subclass B1 MBLs MYO-1, SHD-1 and ECV-1. METHODS The respective genes of these MBLs were cloned into vectors and expressed in Escherichia coli. Purified enzymes were characterized with respect to their catalytic efficiency (kcat/Km). The enzymatic activities and MICs were determined for a panel of different β-lactams, including penicillins, cephalosporins and carbapenems. Thermostability was measured and structures were solved using X-ray crystallography (MYO-1 and ECV-1) or generated by homology modelling (SHD-1). RESULTS Expression of the environmental MBLs in E. coli resulted in the characteristic MBL profile, not affecting aztreonam susceptibility and decreasing susceptibility to carbapenems, cephalosporins and penicillins. The purified enzymes showed variable catalytic activity in the order of <5% to ∼70% compared with the clinically widespread NDM-1. The thermostability of ECV-1 and SHD-1 was up to 8°C higher than that of MYO-1 and NDM-1. Using solved structures and molecular modelling, we identified differences in their second shell composition, possibly responsible for their relatively low hydrolytic activity. CONCLUSIONS These results show the importance of environmental species acting as reservoirs for MBL-encoding genes.
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Affiliation(s)
- Christopher Fröhlich
- The Norwegian Structural Biology Centre (NorStruct), Department of Chemistry, UiT The Arctic University of Norway, Tromsø, Norway
| | - Vidar Sørum
- Department of Pharmacy, UiT The Arctic University of Norway, Tromsø, Norway
| | - Sandra Huber
- Department of Laboratory Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Ørjan Samuelsen
- Department of Pharmacy, UiT The Arctic University of Norway, Tromsø, Norway.,Norwegian National Advisory Unit on Detection of Antimicrobial Resistance, Department of Microbiology and Infection Control, University Hospital of North Norway, Tromsø, Norway
| | - Fanny Berglund
- Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg, Sweden.,Department of Infectious Diseases, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Centre for Antibiotic Resistance Research (CARe) at University of Gothenburg, Gothenburg, Sweden
| | - Erik Kristiansson
- Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg, Sweden.,Centre for Antibiotic Resistance Research (CARe) at University of Gothenburg, Gothenburg, Sweden
| | - Stathis D Kotsakis
- Department of Infectious Diseases, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Centre for Antibiotic Resistance Research (CARe) at University of Gothenburg, Gothenburg, Sweden
| | - Nachiket P Marathe
- Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg, Sweden.,Department of Infectious Diseases, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Centre for Antibiotic Resistance Research (CARe) at University of Gothenburg, Gothenburg, Sweden.,Institute of Marine Research, Bergen, Norway
| | - D G Joakim Larsson
- Department of Infectious Diseases, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Centre for Antibiotic Resistance Research (CARe) at University of Gothenburg, Gothenburg, Sweden
| | - Hanna-Kirsti S Leiros
- The Norwegian Structural Biology Centre (NorStruct), Department of Chemistry, UiT The Arctic University of Norway, Tromsø, Norway
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3
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Bailone RL, Fukushima HCS, Ventura Fernandes BH, De Aguiar LK, Corrêa T, Janke H, Grejo Setti P, Roça RDO, Borra RC. Zebrafish as an alternative animal model in human and animal vaccination research. Lab Anim Res 2020; 36:13. [PMID: 32382525 PMCID: PMC7203993 DOI: 10.1186/s42826-020-00042-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/19/2020] [Indexed: 02/07/2023] Open
Abstract
Much of medical research relies on animal models to deepen knowledge of the causes of animal and human diseases, as well as to enable the development of innovative therapies. Despite rodents being the most widely used research model worldwide, in recent decades, the use of the zebrafish (Danio rerio) model has exponentially been adopted among the scientific community. This is because such a small tropical freshwater teleost fish has crucial genetic, anatomical and physiological homology with mammals. Therefore, zebrafish constitutes an excellent experimental model for behavioral, genetic and toxicological studies which unravels the mechanism of various human diseases. Furthermore, it serves well to test new therapeutic agents, such as the safety of new vaccines. The aim of this review was to provide a systematic literature review on the most recent studies carried out on the topic. It presents numerous advantages of this type of animal model in tests of efficacy and safety of both animal and human vaccines, thus highlighting gains in time and cost reduction of research and analyzes.
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Affiliation(s)
- Ricardo Lacava Bailone
- Ministry of Agriculture, Livestock and Supply, Federal Inspection Service, São Carlos, SP Brazil
- São Paulo State University, Botucatu, SP Brazil
| | - Hirla Costa Silva Fukushima
- Health and Biological Sciences Center, Federal University, Federal University of São Carlos, São Carlos, SP Brazil
| | | | - Luís Kluwe De Aguiar
- Department of Food Technology and Innovation, Harper Adams University, Newport, UK
| | - Tatiana Corrêa
- Department of Genetic and Evolution, Federal University of São Carlos, São Carlos, SP Brazil
| | - Helena Janke
- Department of Genetic and Evolution, Federal University of São Carlos, São Carlos, SP Brazil
| | - Princia Grejo Setti
- Department of Genetic and Evolution, Federal University of São Carlos, São Carlos, SP Brazil
| | | | - Ricardo Carneiro Borra
- Department of Genetic and Evolution, Federal University of São Carlos, São Carlos, SP Brazil
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4
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Lu Y, Xia W, Zhang X, Ni F, Mei Y. A Confirmed Catheter-Related Blood Stream Infection (CRBSI) in an Immunocompetent Patient Due to Myroides odoratimimus: Case Report and Literature Review. Infect Drug Resist 2020; 13:139-144. [PMID: 32021328 PMCID: PMC6959507 DOI: 10.2147/idr.s234778] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 12/17/2019] [Indexed: 01/12/2023] Open
Abstract
The genus Myroides are gram-negative bacilli which are completely aerobic, non-motile, non-fermenting and yellow-pigmented with a characteristic fruity odor. Myroides species are widely found in the environment, especially in water and soil, and are considered as low-grade opportunistic pathogens for humans. Myroides infections are most commonly seen in immunocompromised patients and only rarely occur in immunocompetent patients. We here report the first confirmed catheter-related bloodstream infection (CRBSI) due to Myroides odoratimimus in an immunocompetent patient. We also review the literature related to Myroides infections.
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Affiliation(s)
- Yanfei Lu
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
| | - Wenying Xia
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
| | - Xiaohui Zhang
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
| | - Fang Ni
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
| | - Yaning Mei
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
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5
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Choudhary M, Choudhary BK, Bera BC, Chaudhari SP, Giri DK, Ghosh RC, Barbuddhe SB. Association of Myroides odoratimimus in immunocompromized piglets with post weaning multisystemic wasting syndrome. J Appl Microbiol 2019; 127:1635-1645. [PMID: 31517421 DOI: 10.1111/jam.14448] [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: 02/21/2019] [Revised: 09/05/2019] [Accepted: 09/05/2019] [Indexed: 11/29/2022]
Abstract
AIM To study the association of opportunistic infection due to Myroides odoratimimus in piglets immunocompromised by porcine circovirus type 2 (PCV2) infection. METHODS AND RESULTS The clinical samples (n = 101) were analysed bacteriologically. The isolates were identified by their phenotypes and MALDI TOF-MS analysis as Myroides species. The phylogram constructed based on nucleotide sequences of the 16S rRNA gene showed identity (~99%) with the M. odoratimimus isolates. The minimum inhibitory concentration values for antibiotics revealed M. odoratimimus to be resistant against carbapenem, cephalosporins, aminoglycosides and fluoroquinolones. The presence of PCV2 in affected tissue samples was confirmed by amplification of the 565 bp region of ORF2 of the PCV2 genome. The topology of the phylogenetic tree grouped the PCV2 with cluster-2d. CONCLUSIONS PCV2 being immunosuppressive in nature might have impaired the immunity thereby increasing the susceptibility of immunocompromised piglets to opportunistic pathogens such as M. odoratimimus leading to disease severity and high mortality. The M. odoratimimus isolates were found to be multidrug resistant and evidenced for uncertain clinical relevance and hence could act as hidden source of public health hazard. SIGNIFICANCE AND IMPACT OF THE STUDY Myroides odoratimimus is a rarely reported human pathogen. We reported the incidence of infection due to seemingly rare isolates of M. odoratimimus causing an outbreak of pneumonia in piglets. This appears, to the best of authors' knowledge, to be the first outbreak due to Myroides recorded in animal clinical cases described in the literature.
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Affiliation(s)
- M Choudhary
- ICAR-National Institute of Biotic Stress Management, Raipur, Chhattisgarh, India
| | - B K Choudhary
- ICAR-National Institute of Biotic Stress Management, Raipur, Chhattisgarh, India
| | - B C Bera
- ICAR-NCVTC, National Research Centre on Equines, Hisar, Haryana, India
| | - S P Chaudhari
- Department of Veterinary Public Health, Centre for Zoonoses, Nagpur Veterinary College, Maharashtra Animal and Fishery Sciences University, Nagpur, India
| | - D K Giri
- Department of Veterinary Pathology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidylaya, Raipur, Chhattisgarh, India
| | - R C Ghosh
- Department of Veterinary Pathology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidylaya, Raipur, Chhattisgarh, India
| | - S B Barbuddhe
- ICAR-National Research Centre on Meat, Chengicherla, Hyderabad, India
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6
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Pechal JL, Crippen TL, Cammack JA, Tomberlin JK, Benbow ME. Microbial communities of salmon resource subsidies and associated necrophagous consumers during decomposition: Potential of cross-ecosystem microbial dispersal. FOOD WEBS 2019. [DOI: 10.1016/j.fooweb.2019.e00114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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High diversity and abundance of cultivable tetracycline-resistant bacteria in soil following pig manure application. Sci Rep 2018; 8:1489. [PMID: 29367695 PMCID: PMC5784163 DOI: 10.1038/s41598-018-20050-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/12/2018] [Indexed: 11/13/2022] Open
Abstract
By performing a microcosm experiment mimicking fertilization, we assessed the dynamic distribution of tetracycline-resistant bacteria (TRB) and corresponding tetracycline resistance genes (TRGs) from pig manure (PM) to the fertilized soil, by culture-dependent methods and PCR detection. Cultivable TRB were most abundant in PM, followed by fertilized soil and unfertilized soil. By restriction fragment length polymorphism (RFLP) analysis, TRB were assigned to 29, 20, and 153 operational taxonomic units (OTUs) in PM, unfertilized soil, and fertilized soil, respectively. After identification, they were further grouped into 19, 12, and 62 species, showing an enhanced diversity of cultivable TRB in the soil following PM application. The proportions of potentially pathogenic TRB in fertilized soil decreased by 69.35% and 41.92% compared with PM and unfertilized soil. Bacillus cereus was likely widely distributed TRB under various environments, and Rhodococcus erythropolis and Acinetobacter sp. probably spread from PM to the soil via fertilization. Meanwhile, tetL was the most common efflux pump gene in both unfertilized and fertilized soils relative to PM; tetB(P) and tet36 were common in PM, whereas tetO was predominant in unfertilized and fertilized soil samples. Sequencing indicated that over 65% of randomly selected TRB in fertilized soil with acquired resistance derived from PM.
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Ming DS, Chen QQ, Chen XT. Analysis of resistance genes in pan-resistant Myroides odoratimimus clinical strain PR63039 using whole genome sequencing. Microb Pathog 2017; 112:164-170. [PMID: 28916321 DOI: 10.1016/j.micpath.2017.09.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/18/2017] [Accepted: 09/11/2017] [Indexed: 11/29/2022]
Abstract
To clarify the antibiotic resistance mechanisms of Myroides odoratimimus, pan-resistant M. odoratimimus strain PR63039 was isolated and its genome sequenced and analyzed. Antimicrobial susceptibility testing was conducted using the Kirby-Bauer disk diffusion method, and the Phoenix-100 Automated Microbiology System with a NMIC/ID-4 panel including aminoglycosides, β-lactams, polypeptides, quinolones, sulfonamides, chloramphenicols, and tetracyclines. Single-molecule real-time whole genome sequencing was conducted using the PacBio RSII system, and genome annotation was performed using RAST and IMG ER. To characterize the genome features, a number of databases and software programs, including GC-Profile, CG viewer, the VFDB database, ISfinder, RADB, CARD, ResFinder, and PHAST, were used. M. odoratimimus isolate PR63039 was resistant to almost all antibiotics tested, suggesting pan-drug resistance. The genome consisted of a 4,366,950-bp chromosome and a 90,798-bp plasmid (p63039), which contained a large number of resistance genes and virulence factors. The distribution of the resistance genes was distinctive, and a resistance region, designated MY63039-RR, was identified. RAST analysis indicated that 108 of the annotated genes were potentially involved in virulence, disease, and defense, all of which could be associated with resistance and pathogenicity. Prophage analysis also identified two incomplete prophages in the genome of M. odoratimimus PR63039. Multiple antibiotic-resistance genes were identified, including those associated with resistance to tetracycline (tetX), macrolides (ereB, cfrA, lasE), sulfonamides (sul2, sul3), β-lactams (blaMUS-1, blaTUS-1, blaSFB-1, blaSLB-1, blaOXA-209, blaOXA-347), and chloramphenicol (cat). Further, the presence of 18 antibiotic efflux pump-encoding resistance genes, including acrB, acrD, acrF, adeB, adeG, adeJ, amrB, ceoB, cmeB, mdsB, mexB, mexD, mexF, mtrD, smeE, mdtF, macB, likely accounts for the observed quinolone resistance of strain PR63039. To the best of our knowledge, this is the first report of the presence of the blaSFB-1, blaSLB-1, blaOXA-209, blaOXA-347, and tetX resistance genes in M. odoratimimus.
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Affiliation(s)
- De-Song Ming
- Department of Clinical Diagnostics, Quanzhou First Hospital affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China; Quanzhou Medical College, Quanzhou 362100, China.
| | - Qing-Qing Chen
- Department of Clinical Diagnostics, Quanzhou First Hospital affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Xiao-Tin Chen
- Department of Clinical Diagnostics, Quanzhou First Hospital affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
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9
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Villamil Díaz LM, Esguerra Rodríguez D. Enterococcus, Myroides Y Exiguobacterium: GÉNEROS BACTERIANOS CON POTENCIAL PROBIÓTICO PARA EL CULTIVO DE TILAPIA NILÓTICA (Oreochromis niloticus). ACTA BIOLÓGICA COLOMBIANA 2017. [DOI: 10.15446/abc.v22n3.59974] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Se aislaron 120 morfotipos bacterianos de intestino de tilapia y se seleccionaron según su actividad antibacteriana contra patógenos como Aeromonas hydrophila, Streptococcus agalactiae y Edwardsiella tarda, su capacidad de adherencia a mucus intestinal y cinética de crecimiento. Las bacterias seleccionadas se identificaron mediante secuenciación de 16S rRNA y se identificaron como Exigobacterium sp. I9, Enterococcus faecalis I15 y Myroides odoratimimus I19. Además, se evaluó su efecto in vivo sobre el crecimiento de los peces, mediante su adición al alimento de juveniles de Oreochromis niloticus (106 UFC / g, por 15 días). Se determinó la supervivencia luego de un desafío experimental con Edwardsiella tarda por inyección intraperitoneal (100 µL 105 UFC / mL). Las tres bacterias seleccionadas incrementaron la tasa de crecimiento específica, redujeron la mortalidad de los peces durante el desafío experimental con E. tarda y no causaron mortalidad durante la adición en el alimento. Los efectos positivos in vivo se relacionan posiblemente con actividad in vitro; sin embargo, por motivos de bioseguridad se recomienda efectuar estudios posteriores a Exigobacterium sp. I9y E. faecalis I15 dado que se han reportado miembros de este género como causantes de mortalidad en peces, mientras que en el caso de M. odoratimimus I19, es necesario efectuar futuros estudios para verificar su actividad positiva a mayor escala productiva.
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10
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Wang JZ, Du WT, Xu YL, Cheng SZ, Liu ZJ. Gut microbiome-based medical methodologies for early-stage disease prevention. Microb Pathog 2017; 105:122-130. [DOI: 10.1016/j.micpath.2017.02.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 12/17/2022]
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11
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Hu SH, Yuan SX, Qu H, Jiang T, Zhou YJ, Wang MX, Ming DS. Antibiotic resistance mechanisms of Myroides sp. J Zhejiang Univ Sci B 2016; 17:188-99. [PMID: 26984839 DOI: 10.1631/jzus.b1500068] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Bacteria of the genus Myroides (Myroides spp.) are rare opportunistic pathogens. Myroides sp. infections have been reported mainly in China. Myroides sp. is highly resistant to most available antibiotics, but the resistance mechanisms are not fully elucidated. Current strain identification methods based on biochemical traits are unable to identify strains accurately at the species level. While 16S ribosomal RNA (rRNA) gene sequencing can accurately achieve this, it fails to give information on the status and mechanisms of antibiotic resistance, because the 16S rRNA sequence contains no information on resistance genes, resistance islands or enzymes. We hypothesized that obtaining the whole genome sequence of Myroides sp., using next generation sequencing methods, would help to clarify the mechanisms of pathogenesis and antibiotic resistance, and guide antibiotic selection to treat Myroides sp. infections. As Myroides sp. can survive in hospitals and the environment, there is a risk of nosocomial infections and pandemics. For better management of Myroides sp. infections, it is imperative to apply next generation sequencing technologies to clarify the antibiotic resistance mechanisms in these bacteria.
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Affiliation(s)
- Shao-hua Hu
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences and Institute of Molecular Medicine, Huaqiao University / Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Shu-xing Yuan
- Department of Neurosurgery, Linyi People's Hospital, Linyi 276000, China
| | - Hai Qu
- Linyi Health School of Shandong Province, Linyi 276000, China
| | - Tao Jiang
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences and Institute of Molecular Medicine, Huaqiao University / Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Ya-jun Zhou
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences and Institute of Molecular Medicine, Huaqiao University / Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China
| | - Ming-xi Wang
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences and Institute of Molecular Medicine, Huaqiao University / Engineering Research Center of Molecular Medicine, Ministry of Education, Xiamen 361021, China.,Institute of Nanomedicine, Department of Medical Laboratory, Weifang Medical College, Weifang 261053, China
| | - De-song Ming
- Department of Clinical Laboratory, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, China
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12
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Sullivan C, Matty MA, Jurczyszak D, Gabor KA, Millard PJ, Tobin DM, Kim CH. Infectious disease models in zebrafish. Methods Cell Biol 2016; 138:101-136. [PMID: 28129840 DOI: 10.1016/bs.mcb.2016.10.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In recent years, the zebrafish (Danio rerio) has developed as an important alternative to mammalian models for the study of hostpathogen interactions. Because they lack a functional adaptive immune response during the first 4-6weeks of development, zebrafish rely upon innate immune responses to protect against injuries and infections. During this early period of development, it is possible to isolate and study mechanisms of infection and inflammation arising from the innate immune response without the complications presented by the adaptive immune response. Zebrafish possess several inherent characteristics that make them an attractive option to study hostpathogen interactions, including extensive sequence and functional conservation with the human genome, optical clarity in larvae that facilitates the high-resolution visualization of host cell-microbe interactions, a fully sequenced and annotated genome, robust forward and reverse genetic tools and techniques (e.g., CRISPR-Cas9 and TALENs), and amenability to chemical studies and screens. Here, we describe methods for studying hostpathogen interactions both through systemic infections and through localized infections that allow analysis of host cell response, migration patterns, and behavior. Each of the methods described can be modified for use in downstream applications that include ecotoxicant studies and chemical screens.
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Affiliation(s)
- C Sullivan
- University of Maine, Orono, ME, United States
| | - M A Matty
- Duke University School of Medicine, Durham, NC, United States
| | | | - K A Gabor
- National Institute of Environmental Health Sciences, Durham, NC, United States
| | - P J Millard
- University of Maine, Orono, ME, United States
| | - D M Tobin
- Duke University School of Medicine, Durham, NC, United States
| | - C H Kim
- University of Maine, Orono, ME, United States
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13
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Hu S, Jiang T, Zhou Y, Ming D, Gao H, Wang M. Genomic analysis of the multi-drug-resistant clinical isolate Myroides odoratimimus PR63039. Mol Genet Genomics 2016; 292:133-144. [PMID: 27796642 DOI: 10.1007/s00438-016-1261-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/14/2016] [Indexed: 10/20/2022]
Abstract
Myroides odoratimimus (M. odoratimimus) has been gradually implicated as an important nosocomial pathogen that poses a serious health threat to immunocompromised patients owing to its multi-drug resistance. However, the resistance mechanism is currently unclear. To clarify the antibiotic resistance and infectivity mechanisms of M. odoratimimus, whole genome sequencing was performed on the multi-drug-resistant M. odoratimimus strain PR63039. The genome sequence was completed with single molecule real-time (SMRT) technologies. Then, annotation was performed using RAST and IMG-ER. A number of databases and software programs were used to analyze the genomic characteristics, including GC-Profile, ISfinder, CG viewer, ARDB, CARD, ResFinder, the VFDB database, PHAST and Progressive Mauve. The M. odoratimimus PR63039 genome consisted of a chromosome and a plasmid. The genome contained a large number of resistance genes and virulence factors. The distribution of the resistance genes was distinctive, and a resistance region named MY63039-RR was found. The subsystem features generated by RAST indicated that the annotated genome had 108 genes that were potentially involved in virulence, disease and defense, all of which had strong associations with resistance and pathogenicity. The prophage analysis showed two incomplete prophages in the genome. The genomic analysis of M. odoratimimus PR63039 partially clarified its antibiotic resistance mechanisms and virulence factors. Obtaining a clear understanding of its genomic characteristics will be conducive to the management of multidrug-resistant M. odoratimimus.
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Affiliation(s)
- Shaohua Hu
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, Fujian, China
| | - Tao Jiang
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, Fujian, China
| | - Yajun Zhou
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, Fujian, China
| | - Desong Ming
- Department of Clinical Diagnostics, The First Quanzhou Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, China.
| | - Hongzhi Gao
- Department of Neurosurgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, 350005, China. .,Department of Central Laboratory, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, 350005, China.
| | - Mingxi Wang
- Yun Leung Laboratory for Molecular Diagnostics, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, Fujian, China. .,Institute of Nanomedicine Technology and Department of Medical Laboratory, Weifang Medical College, Weifang, 261053, Shandong, China.
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