Analysis of gene expression profiles of Enterococcus faecalis induced by type I collagen

Persistent ID (NDL): info:ndljp/pid/12296860

Material type: 博士論文

Author: 平川 , 陽基

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Publication date: 2022-03-04

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Name of awarding university/degree: 大阪歯科大学,博士（歯学）

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Note (General)：: Enterococcus faecalis is an etiological agent of endodontic infections. The present study was performed to investigate the gene profiles of E. faecali...

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Material Type: 博士論文
Title: Analysis of gene expression profiles of Enterococcus faecalis induced by type I collagen
Author/Editor: 平川 , 陽基
Author Heading: 平川 , 陽基
Publication Date: 2022-03-04
Publication Date (W3CDTF): 2022-03-04
Alternative Title: Ⅰ型コラーゲン添加時における Enterococcus faecalis の遺伝子発現様態の解析
Degree grantor/type: 大阪歯科大学
Date Granted: 2022-03-04
Date Granted (W3CDTF): 2022-03-04
Dissertation Number: 甲第937号
Degree Type: 博士（歯学）
Conferring No. (Dissertation): 甲第937号
Text Language Code: eng
Subject Heading: Enterococcus faecalis
transcriptome analysis
matrix metalloprotease
gene
ontology (GO) enrichment analysis
Target Audience: 一般
Note (General): Enterococcus faecalis is an etiological agent of endodontic infections. The present study was performed to investigate the gene profiles of E. faecalis induced by type I collagen stimulation. E. faecalis ATCC 19433 was cultivated with [collagen(+)] or without type I collagen [collagen(−)], and transcriptome analysis was performed using high-throughput sequencing technology. A total of 3.6 gb of information was obtained by sequence analysis and 77 differentially expressed genes (DEGs) between the two culture conditions were identified. Among the 77 DEGs, 35 genes were upregulated in collagen(+) E. faecalis, whereas 42 genes were downregulated. Gene Ontology (GO) enrichmentanalysis was performed and 11 GO terms, including metalloendopeptidase activity (GO:0004222) and two related GO terms (GO:0031012, GO:0044421), were significantly enriched in the set of upregulated genes. We focused on an upregulated DEG belonging to the matrixin metalloprotease gene family, and matrix metalloprotease (MMP) activities of the bacterial cell were examined. The generic MMP, MMP-8, and MMP-9 activities of collagen(+) E. faecalis were significantly higher than those of collagen(−) E. faecalis. These results suggested that contact with type I collagen may alter the gene expression profile of E. faecalis, and upregulation of metalloprotease genes mayresult in enhanced MMP activities in E. faecalis.
2021年度
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Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
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Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2022-06-05T18:01:14+09:00
Date Created (W3CDTF): 2022-05-13
Format (IMT): application/pdf
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Periodical Title (URI): http://id.nii.ac.jp/1392/00000314/
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