Whole genome sequencing of the multidrug-resistant Chryseobacterium indologenes isolated from a patient in Brazil.

Autor:	Damas MSF; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Ferreira RL; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Campanini EB; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Soares GG; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Campos LC; Laboratório Central de Saúde Pública do Tocantins, Palmas, TO, Brazil., Laprega PM; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Soares da Costa A; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Freire CCM; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Pitondo-Silva A; Programa de Pós-graduação em Odontologia e Tecnologia Ambiental, Universidade de Ribeirão Preto, Ribeirão Preto, SP, Brazil., Cerdeira LT; Department of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom., da Cunha AF; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Pranchevicius MDS; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.; Centro de Ciências Biológicas e da Saúde, Biodiversidade Tropical - BIOTROP, Universidade Federal de São Carlos, São Carlos, Brazil.
Jazyk:	angličtina
Zdroj:	Frontiers in medicine [Front Med (Lausanne)] 2022 Jul 28; Vol. 9, pp. 931379. Date of Electronic Publication: 2022 Jul 28 (Print Publication: 2022).
DOI:	10.3389/fmed.2022.931379
Abstrakt:	Chryseobacterium indologenes is a non-glucose-fermenting Gram-negative bacillus. This emerging multidrug resistant opportunistic nosocomial pathogen can cause severe infections in neonates and immunocompromised patients. This study aimed to present the first detailed draft genome sequence of a multidrug-resistant C. indologenes strain isolated from the cerebrospinal fluid of an infant hospitalized at the Neonatal Intensive Care Unit of Brazilian Tertiary Hospital. We first analyzed the susceptibility of C. indologenes strain to different antibiotics using the VITEK 2 system. The strain demonstrated an outstanding resistance to all the antibiotic classes tested, including β-lactams, aminoglycosides, glycylcycline, and polymyxin. Next, C. indologenes was whole-genome-sequenced, annotated using Prokka and Rapid Annotation using Subsystems Technology (RAST), and screened for orthologous groups (EggNOG), gene ontology (GO), resistance genes, virulence genes, and mobile genetic elements using different software tools. The draft genome contained one circular chromosome of 4,836,765 bp with 37.32% GC content. The genomic features of the chromosome present numerous genes related to cellular processes that are essential to bacteria. The MDR C. indologenes revealed the presence of genes that corresponded to the resistance phenotypes, including genes to β-lactamases ( bla IND- 13 , bla CIA- 3 , bla TEM- 116 , bla OXA- 209 , bla VEB- 15 ), quinolone ( mcb G), tigecycline ( tet (X6)), and genes encoding efflux pumps which confer resistance to aminoglycosides ( Ran A/ Ran B), and colistin ( Hly D/ Tol C). Amino acid substitutions related to quinolone resistance were observed in GyrA (S83Y) and GyrB (L425I and K473R). A mutation that may play a role in the development of colistin resistance was detected in lpxA (G68D). Chryseobacterium indologenes isolate harbored 19 virulence factors, most of which were involved in infection pathways. We identified 13 Genomic Islands (GIs) and some elements associated with one integrative and conjugative element (ICEs). Other elements linked to mobile genetic elements (MGEs), such as insertion sequence (ISEIsp1), transposon (Tn5393), and integron (In31), were also present in the C. indologenes genome. Although plasmids were not detected, a ColRNAI replicon type and the most resistance genes detected in singletons were identified in unaligned scaffolds. We provided a wide range of information toward the understanding of the genomic diversity of C. indologenes , which can contribute to controlling the evolution and dissemination of this pathogen in healthcare settings. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2022 Damas, Ferreira, Campanini, Soares, Campos, Laprega, Soares da Costa, Freire, Pitondo-Silva, Cerdeira, Cunha and Pranchevicius.)
Databáze:	MEDLINE
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