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First reported isolation of Neisseria canis from a deep facial wound infection in a dog.

ABSTRACT: Neisseria canis was isolated in pure culture from a mandibular abscess in a dog. Ultrasound-guided fine-needle aspiration was used to obtain a sample from the abscess. Conventional bacteriological examination techniques followed by 16S rRNA gene sequencing from pure subculture and construction of a phylogenetic tree verified the isolate as N. canis. 16S rRNA sequence analysis revealed that a broader phylogenetic platform is needed in the part of the phylogenetic tree where the canine pathogenic N. canis isolate is located. The canine pathogenic isolate was found to be resistant to cephalexin and trimethoprim.

SUBMITTER: Cantas H

PROVIDER: S-EPMC3122672 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature

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First reported isolation of Neisseria canis from a deep facial wound infection in a dog.

Cantas Leon L Pekarkova Marta M Kippenes Hege S HS Brudal Espen E Sorum Henning H

Journal of clinical microbiology 20110316 5

Neisseria canis was isolated in pure culture from a mandibular abscess in a dog. Ultrasound-guided fine-needle aspiration was used to obtain a sample from the abscess. Conventional bacteriological examination techniques followed by 16S rRNA gene sequencing from pure subculture and construction of a phylogenetic tree verified the isolate as N. canis. 16S rRNA sequence analysis revealed that a broader phylogenetic platform is needed in the part of the phylogenetic tree where the canine pathogenic ...[more]

PMID: 21411579

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Project description:Bone marrow is the main hematopoietic organ that produces red blood cells, granulocytes, monocyte/macrophages, megakaryocytes, lymphocytes, and myeloid dendritic cells. Many of these cells play roles in the pathogenesis of Toxocara canis infection, and understanding how infection alters the dynamics of transcription regulation in bone marrow is therefore critical for deciphering the global changes in the dog transcriptional signatures during T. canis infection. In this study, long non-coding RNA (lncRNA) and messenger RNA (mRNA) expression profiles in the bone marrow of Beagle dogs infected with T. canis were determined at 12 h post-infection (hpi), 24 hpi, 96 hpi, and 36 days post-infection (dpi). RNA-sequencing and bioinformatics analysis identified 1,098, 984, 1,120, and 1,305 differentially expressed lncRNAs (DElncRNAs), and 196, 253, 223, and 328 differentially expressed mRNAs (DEmRNAs) at 12 h, 24 h, 96 h, and 36 days after infection, respectively. We also identified 29, 36, 38, and 68 DEmRNAs potentially cis-regulated by 44, 44, 51, and 80 DElncRNAs at 12 hpi, 24 hpi, 96 hpi, and 36 dpi, respectively. To validate the sequencing findings, qRT-PCR was performed on 10 randomly selected transcripts. Many altered genes were involved in the differentiation of bone marrow cells. GO of DElncRNAs and GO and KEGG pathway analyses of DEmRNAs revealed alterations in several signaling pathways, including pathways involved in energy metabolism, amino acid biosynthesis and metabolism, Wnt signaling pathway, Huntington's disease, HIF-1 signaling pathway, cGMP-PKG signaling pathway, dilated cardiomyopathy, and adrenergic signaling in cardiomyocytes. These findings revealed that bone marrow of T. canis-infected dogs exhibits distinct lncRNA and mRNA expression patterns compared to healthy control dogs. Our data provide novel insights into T. canis interaction with the definitive host and shed light on the significance of the non-coding portion of the dog genome in the pathogenesis of toxocariasis.

Dataset Information

First reported isolation of Neisseria canis from a deep facial wound infection in a dog.

Publications

First reported isolation of Neisseria canis from a deep facial wound infection in a dog.

Similar Datasets

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