IDENTIFYING VIRULENCE FACTORS OF BACTEROIDES FORSYTHUS
福赛斯拟杆菌毒力因子的鉴定
基本信息
- 批准号:6175922
- 负责人:
- 金额:$ 3.46万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:1999
- 资助国家:美国
- 起止时间:1999-08-01 至 2003-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Bacteroides forsythus is a filamentous, non-motile, non-pigmenting, gram-negative anaerobe that has been implicated as one of the etiologic agents of periodontal disease. Few studies, however, have examined the potential virulence factors produced by this oral microorganism. Understanding a B. forsythus infection requires that the roles of its virulence factors be confirmed in the context of an in vivo host-parasite interaction. An innovative genetic technique termed in vivo expression technology (IVET) has been developed for the purpose of isolating genes expressed only during the infectious process. The utility of IVET has been proven in isolating novel virulence factors of major medical pathogens, such as Salmonella, Pseudomonas, and Staphylococci. Preliminary data presented in this application shows that IVET has been successfully used to detect genes of Porphyromonas gingivalis, a principal periodontal pathogen, that are expressed only in vivo. The specific aims of this proposed study are (1) to construct pBFIVET, the IVET system for B. forsythus, and (2) to test pBFIVET for efficacy in isolating B. forsythus genes expressed only during the infectious process. The results obtained from this study will help achieve the long-term goal of this laboratory: to examine the role of B. forsythus in periodontal infection.
拟杆菌是一种丝状、不运动、不着色的革兰氏阴性厌氧菌,被认为是牙周病的病原体之一。 然而,很少有研究检查这种口腔微生物产生的潜在毒力因子。 理解一个B。寄生虫感染需要在体内宿主-寄生虫相互作用的背景下确认其毒力因子的作用。一种创新的遗传技术,称为体内表达技术(IVET)已被开发用于分离仅在感染过程中表达的基因。 IVET在分离主要医学病原体(如沙门氏菌、假单胞菌和葡萄球菌)的新毒力因子方面的实用性已得到证实。 本申请中提供的初步数据表明,IVET已成功用于检测牙龈卟啉单胞菌(一种主要的牙周病原体)的基因,这些基因仅在体内表达。本研究的具体目的是:(1)构建适用于B的IVET系统pBFIVET。因此,(2)测试pBFIVET在分离B中的功效。这些基因只在感染过程中表达。 从这项研究中获得的结果将有助于实现本实验室的长期目标:检查B的作用。牙周炎的治疗
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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SEOKWOO LEE其他文献
SEOKWOO LEE的其他文献
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{{ truncateString('SEOKWOO LEE', 18)}}的其他基金
IDENTIFYING VIRULENCE FACTORS OF BACTEROIDES FORSYTHUS
福赛斯拟杆菌毒力因子的鉴定
- 批准号:
6012413 - 财政年份:1999
- 资助金额:
$ 3.46万 - 项目类别:
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