Host Factors in Susceptibility to Chlamydial Disease
衣原体疾病易感性的宿主因素
基本信息
- 批准号:7022330
- 负责人:
- 金额:$ 19.82万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2002
- 资助国家:美国
- 起止时间:2002-03-01 至 2008-02-27
- 项目状态:已结题
- 来源:
- 关键词:Chlamydia trachomatiscellular pathologychlamydial diseasecytokinedisease /disorder modeldisease /disorder proneness /riskelastasesenzyme activityextracellular matrixfemale reproductive system disordergene deletion mutationgenetically modified animalslaboratory mousemetalloendopeptidasestissue inhibitor of metalloproteinasestissue mosaicism
项目摘要
DESCRIPTION (provided by the applicant): Chlamydia trachomatis infections are
the most commonly reported transmissible diseases in the U.S. Diagnosis,
treatment, and sequelae of chlamydial disease cost billions of dollars each
year in the U.S. alone. The infection is often asymptomatic in women.
Variations in the host immune response are likely to blame for adverse outcomes
because not all persons who become infected will suffer the long-term
consequences of the disease. In those who progress to disease, the affected
tissues are significantly altered in their structure and function by a process
that ultimately results in scarring and blockage of the fallopian tubes. This
results in tubal factor infertility and risk of ectopic pregnancy. Our
hypothesis is that those who sustain this outcome have dysregulation of factors
which are responsible for the repair of the extracellular matrix. To address
hypothesis, we will use a mouse model of chlamydial disease where inbred
strains exist which have been characterized as resistant or susceptible as
indicated by the outcomes of tubal damage and infertility. In approach, we will
first extensively compare and contrast these strains with regard to their
ability to modify and repair the extracellular matrix of the urogenital tract
in vivo and in vitro. Subsequently, we will define the role of matrix
metalloproteinases (MMPs) in the outcome of chlamydial disease through in vivo
studies where the enzymes are inhibited pharmacologically or cytokines that
influence their activity and production are neutralized. We will then define a
role of specific metalloproteinases to the disease process through the use of
mice with deletions in genes that encode the enzymes. Lastly, the contribution
of specific inflammatory cells to the modulation of extracellular matrix in
chlamydial disease will be defined by the production of bone marrow chimeras
between susceptible and resistant strains of mice and subsequent depletions of
leukocyte populations. In summary, it is the intent of this proposal to define
host factors that are responsible for adverse chlamydial disease outcome. The
information derived will assist in the development of therapies which could
ameliorate the chlamydial disease process; noninvasive diagnostic indicators of
progressive scarring and abnormal physiological outcome; development of
prognostic indicators of those at high risk for chlamydial disease; and,
further advances in design of a safe and effective chlamydial vaccine through
avoidance of adverse outcomes.
描述(由申请方提供):沙眼衣原体感染是
在美国最常报告的传染病诊断,
衣原体疾病的治疗和后遗症,
年仅在美国。妇女感染往往没有症状。
宿主免疫反应的变化可能是造成不良后果的原因
因为并非所有感染者都会长期受到感染,
疾病的后果。在那些进展到疾病的人中,
组织的结构和功能会因一个过程而发生显著改变
最终导致疤痕和输卵管堵塞。这
导致输卵管因素不孕和异位妊娠的风险。我们
一种假设是,那些维持这种结果的人有因素失调
负责细胞外基质的修复。解决
假设,我们将使用衣原体疾病的小鼠模型,
存在已被表征为抗性或敏感的菌株,
由输卵管损伤和不孕的结果指示。在方法上,我们将
首先广泛比较和对比这些菌株,
修改和修复泌尿生殖道细胞外基质的能力
在体内和体外。随后,我们将定义矩阵的作用
金属蛋白酶(MMPs)在衣原体疾病结局中的体内研究
研究中,酶被抑制,
影响其活性和生产。我们将定义一个
特定金属蛋白酶对疾病过程的作用,
编码酶的基因缺失的小鼠。最后,贡献
特异性炎症细胞对细胞外基质的调节,
衣原体疾病将通过骨髓嵌合体的产生来定义
敏感和耐药小鼠品系之间的差异以及随后的
白细胞群总之,本提案的目的是界定
宿主因素是造成衣原体疾病不良结局的原因。的
获得的信息将有助于开发治疗方法,
改善衣原体疾病过程;非侵入性诊断指标
进行性瘢痕形成和异常生理结果;
衣原体疾病高危人群的预后指标;以及,
在设计安全有效的衣原体疫苗方面取得进一步进展,
避免不良后果。
项目成果
期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Imiquimod does not affect shedding of viable chlamydiae in a murine model of Chlamydia trachomatis genital tract infection.
- DOI:10.1080/10647440300025503
- 发表时间:2003
- 期刊:
- 影响因子:0
- 作者:Ramsey KH;Shaba N;Cohoon KP;Ault KA
- 通讯作者:Ault KA
Expression of matrix metalloproteinases subsequent to urogenital Chlamydia muridarum infection of mice.
小鼠泌尿生殖道衣原体感染后基质金属蛋白酶的表达。
- DOI:10.1128/iai.73.10.6962-6973.2005
- 发表时间:2005
- 期刊:
- 影响因子:3.1
- 作者:Ramsey,KH;Sigar,IM;Schripsema,JH;Shaba,N;Cohoon,KP
- 通讯作者:Cohoon,KP
A role for CXC chemokine receptor-2 in the pathogenesis of urogenital Chlamydia muridarum infection in mice.
CXC 趋化因子受体 2 在小鼠泌尿生殖道衣原体感染发病机制中的作用。
- DOI:10.1111/j.1574-695x.2010.00715.x
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Lee,HyoY;Schripsema,JustinH;Sigar,IraM;Lacy,ShanonR;Kasimos,JohnN;Murray,CandaceM;Ramsey,KyleH
- 通讯作者:Ramsey,KyleH
Outcome of urogenital infection with Chlamydia muridarum in CD14 gene knockout mice.
CD14 基因敲除小鼠泌尿生殖道感染鼠衣原体的结果。
- DOI:10.1186/1471-2334-6-144
- 发表时间:2006
- 期刊:
- 影响因子:3.7
- 作者:Imtiaz,MuhammadT;Schripsema,JustinH;Sigar,IraM;Ramsey,KyleH
- 通讯作者:Ramsey,KyleH
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Kyle H. Ramsey其他文献
Inflammatory cytokines produced in response to experimental human gonorrhea.
针对实验性人类淋病而产生的炎症细胞因子。
- DOI:
10.1093/infdis/172.1.186 - 发表时间:
1995 - 期刊:
- 影响因子:0
- 作者:
Kyle H. Ramsey;Herman Schneider;Alan S. Cross;John W. Boslego;David L. Hoover;Terri L. Staley;Robert A. Kuschner;Carolyn D. Deal - 通讯作者:
Carolyn D. Deal
Kyle H. Ramsey的其他文献
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{{ truncateString('Kyle H. Ramsey', 18)}}的其他基金
Host Factors in Susceptibility to Chlamydial Disease
衣原体疾病易感性的宿主因素
- 批准号:
6708932 - 财政年份:2002
- 资助金额:
$ 19.82万 - 项目类别:
Host Factors in Susceptibility to Chlamydial Disease
衣原体疾病易感性的宿主因素
- 批准号:
6624324 - 财政年份:2002
- 资助金额:
$ 19.82万 - 项目类别:
Host Factors in Susceptibility to Chlamydial Disease
衣原体疾病易感性的宿主因素
- 批准号:
6847777 - 财政年份:2002
- 资助金额:
$ 19.82万 - 项目类别:
Host Factors in Susceptibility to Chlamydial Disease
衣原体疾病易感性的宿主因素
- 批准号:
6473738 - 财政年份:2002
- 资助金额:
$ 19.82万 - 项目类别:
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