Aberrant remodeling of bladder following infection
Aberrant remodeling of bladder following infection
批准号:
10381529
负责人:
Soman N Abraham
金额:
$40.17万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2019
资助国家:
美国
项目状态:
已结题
起止时间:
2019-05-20 至 2024-03-31
关键词:
AcuteAdjuvantAgeAllergensAsthmaBacteriaBiological Response ModifiersBladderBladder mucosaCellsChronicComplicationDefectDendritic CellsDevelopmentDevicesDiseaseEpithelialExposure toFlareFrequenciesFutureGoalsHealthImmuneImmune responseImmune systemImmunityImmunizationImmunizeIncidenceIncreased frequency of micturitionInfectionInfective cystitisInflammatoryInterleukin-12Interleukin-4Lamina PropriaLinkMediatingMusNatureOrganPatientsPopulationPredispositionPreventative vaccinationProcessProductionRecording of previous eventsRecoveryRecurrenceResolutionRisk FactorsRoleT-LymphocyteTh1 CellsTissuesUrinary tract infectionUrineVaccine AntigenVaccinescell typecombatcytotoxicepithelial repairepithelium regenerationexperiencepathogenprogramsrecruitrecurrent infectionrepairedresponsetissue repairurinaryvaccination strategy
中文摘要
由于尿路感染的一个主要并发症是经常复发,似乎有一个致命的缺陷,
在泌尿免疫系统中。膀胱的一个明显特征似乎有助于
他们对再感染的易感性是高度的非典型组织重塑,
在每次感染后,使膀胱易于发生未来的感染。因为很少有
目前已知的关于膀胱重塑,对这一主题的研究可能会揭示新的策略,
治疗复发性尿路感染我们假设,由于高细胞毒性和
由于尿液的高渗性,膀胱开始了有力的上皮再生和重塑
计划,以迅速恢复失去的上皮细胞后,每次感染。我们的初步研究表明
验证了这一观点,并揭示了招募到膀胱中的T细胞更专门化,
引导组织修复(Th2)比病原体消除(Th1)更有效。因此,感染
膀胱中的细菌在感染消退后没有完全消除,
使这个器官在未来更容易发作。由于组织修复T细胞被招募到
膀胱倾向于持续存在,并可能很快诱发再感染,
重构程序高,显著影响膀胱排尿能力。我们发现
与膀胱修复程序相关的关键免疫调节剂是一个独特的亚类,
树突状细胞(DCs),在膀胱癌发生后不久进入膀胱上皮下区域。
浅表上皮的丧失。在此,我们建议确定该DC的具体角色
上皮修复亚类。我们还将研究T细胞Th2偏倚的潜在基础,
在感染发作后被招募到膀胱中的细胞。最后,我们将调查
通过以下方式将Th 2引发的膀胱反应重新编程为Th 1型反应的可能性
用与Th1共施用的疫苗抗原免疫幼稚和慢性感染小鼠
偏置佐剂。我们怀疑此类疫苗不仅可以保护膀胱免受未来的伤害,
而且还允许这些小鼠膀胱功能恢复
英文摘要
Since a major complication of UTIs is frequent recurrence, there appears to be a fateful defect
in the urinary immune system. A distinct feature of the bladder which appears to contribute to
their susceptibility to reinfection is the high degree of atypical tissue remodeling that occurs
following each infection, predisposing the bladder to future infections. Since very little is
currently known regarding bladder remodeling, studies on this topic may reveal new strategies
to combat recurrent UTIs. We have hypothesized that because of the highly cytotoxic and
hyperosmolar nature of urine, the bladder initiates a vigorous re-epithelization and remodeling
program to rapidly recover lost epithelium after each infection. Our preliminary studies have
validated this notion and revealed that T cells recruited into the bladder are more specialized in
directing tissue repair (Th2) than in pathogen elimination (Th1). Consequently, the infecting
bacteria in the bladder are not completely eliminated following resolution of infection,
predisposing this organ to future flare-ups. Since the tissue repair T cells recruited into the
bladder tend to persist and could be quickly evoked with reinfection, the magnitude of the
remodeling program is high, significantly impacting bladder voiding capacity. We have found
that a critical immune regulator associated with the bladder repair program is a distinct subclass
of dendritic cells (DCs), which moves into the subepithelial region of the bladder soon after the
loss of the superficial epithelium. Here, we propose to determine the specific role of this DC
subclass in epithelial repair. We will also examine the underlying basis for the Th2 bias of T
cells recruited into the bladder following bouts of infection. Finally, we will investigate the
possibility of reprograming Th2 primed bladder response into a Th1 type response by
immunizing naïve and chronically infected mice with a vaccine antigen co-administered with Th1
biasing adjuvant. We suspect that such vaccines will not only protect bladder from future
infection but also permit recovery of bladder function in these mice
期刊论文(5)
专著(0)
科研奖励(0)
会议论文
DOI:
10.1016/j.it.2021.01.003
发表时间:
2021-03
期刊:
Trends in immunology
影响因子:
16.8
作者:
[Wu J, Abraham SN]
通讯作者:
Abraham SN
DOI:
10.1371/journal.ppat.1011388
发表时间:
2023-05
期刊:
PLoS pathogens
影响因子:
6.7
作者:
[]
通讯作者:
A novel vaccination strategy to curb recUTIs
-
批准号:10665990
-
项目类别:
-
资助金额:$24.15万
-
财政年份:2023
-
负责人:Soman N Abraham
-
依托单位:
Platelet- mast cell interactions as determinants of the vascular pathology in septic shock.
-
批准号:10343476
-
项目类别:
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资助金额:$46.35万
-
财政年份:2021
-
负责人:Soman N Abraham
-
依托单位:
Loss of Bladder Control Following Recurrent Infections
-
批准号:10368136
-
项目类别:
-
资助金额:$40.98万
-
财政年份:2020
-
负责人:Soman N Abraham
-
依托单位:
Loss of Bladder Control Following Recurrent Infections
-
批准号:10612716
-
项目类别:
-
资助金额:$37.91万
-
财政年份:2020
-
负责人:Soman N Abraham
-
依托单位:
Immunotherapy to combat skin infections
-
批准号:9906450
-
项目类别:
-
资助金额:$27.89万
-
财政年份:2019
-
负责人:Soman N Abraham
-
依托单位:
Immune mediated exocytosis of intravesicular UPEC from bladder cells
-
批准号:8668381
-
项目类别:
-
资助金额:$33.69万
-
财政年份:2014
-
负责人:Soman N Abraham
-
依托单位:
Immune mediated exocytosis of intravesicular UPEC from bladder cells
-
批准号:8908009
-
项目类别:
-
资助金额:$34.0万
-
财政年份:2014
-
负责人:Soman N Abraham
-
依托单位:
Immune mediated exocytosis of intravesicular UPEC from bladder cells
-
批准号:9043871
-
项目类别:
-
资助金额:$34.11万
-
财政年份:2014
-
负责人:Soman N Abraham
-
依托单位:
Immune mediated exocytosis of intravesicular UPEC from bladder cells
-
批准号:9265085
-
项目类别:
-
资助金额:$34.11万
-
财政年份:2014
-
负责人:Soman N Abraham
-
依托单位:
Mast Cells in Dengue Pathology and Prevention
-
批准号:8435997
-
项目类别:
-
资助金额:$36.86万
-
财政年份:2013
-
负责人:Soman N Abraham
-
依托单位:
Mast Cells in Dengue Pathology and Prevention
-
批准号:8680362
-
项目类别:
-
资助金额:$37.95万
-
财政年份:2013
-
负责人:Soman N Abraham
-
依托单位:
Overcoming Immunosenescence by Nanoparticle-Mediated Activation
-
批准号:8602827
-
项目类别:
-
资助金额:$39.25万
-
财政年份:2012
-
负责人:Soman N Abraham
-
依托单位:
Overcoming Immunosenescence by Nanoparticle-Mediated Activation
-
批准号:9037570
-
项目类别:
-
资助金额:$32.04万
-
财政年份:2012
-
负责人:Soman N Abraham
-
依托单位:
Mechanism of Bacterial Expulsion from Infected Bladder Cells.
-
批准号:8544558
-
项目类别:
-
资助金额:$20.0万
-
财政年份:2012
-
负责人:Soman N Abraham
-
依托单位:
Overcoming Immunosenescence by Nanoparticle-Mediated Activation
-
批准号:8414874
-
项目类别:
-
资助金额:$36.9万
-
财政年份:2012
-
负责人:Soman N Abraham
-
依托单位:
Overcoming Immunosenescence by Nanoparticle-Mediated Activation
-
批准号:8309495
-
项目类别:
-
资助金额:$39.25万
-
财政年份:2012
-
负责人:Soman N Abraham
-
依托单位:
Overcoming Immunosenescence by Nanoparticle-Mediated Activation
-
批准号:8848338
-
项目类别:
-
资助金额:$33.48万
-
财政年份:2012
-
负责人:Soman N Abraham
-
依托单位:
Nasal adjuvant to enhance anti-cocaine vaccines
-
批准号:8212028
-
项目类别:
-
资助金额:$19.63万
-
财政年份:2011
-
负责人:Soman N Abraham
-
依托单位:
Nasal adjuvant to enhance anti-cocaine vaccines
-
批准号:7953330
-
项目类别:
-
资助金额:$23.55万
-
财政年份:2011
-
负责人:Soman N Abraham
-
依托单位:
Modulation of Bladder cAMP to combat UTI's
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批准号:7920651
-
项目类别:
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资助金额:$10.35万
-
财政年份:2009
-
负责人:Soman N Abraham
-
依托单位:
海外基金