Microtuble-dependent markers for chromosome instability
染色体不稳定的微管依赖性标记
基本信息
- 批准号:8688658
- 负责人:
- 金额:$ 20.16万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-04-01 至 2016-03-31
- 项目状态:已结题
- 来源:
- 关键词:Adverse drug effectAffectAneuploidyAntineoplastic AgentsAppearanceBehaviorBiological AssayBiological ModelsCell DeathCellsChromosomal InstabilityChromosome SegregationDataDrug TargetingExhibitsFibroblastsGenesGeneticGenetic ScreeningGenomeGoalsHumanIn VitroInstitutesLeadLesionLibrariesMalignant NeoplasmsMeasurableMicrosatellite InstabilityMicrotubule PolymerizationMicrotubulesMitotic spindleMolecular ProfilingMutationOncogenicPaclitaxelPathway interactionsPharmaceutical PreparationsPhenotypePloidiesPolymersProcessReadingRefractoryRegenerative MedicineRegulationResistanceShapesSignal PathwaySmall Interfering RNASpecificityStem cellsTherapeuticTransformed Cell LineTubular formationTubulinTumor Suppressor GenesTumor Suppressor ProteinsUniversitiesUp-RegulationVisualWashingtonbasebeta Tubulincancer cellcancer therapycell typedesigndimergenetic regulatory proteinhigh throughput screeninginhibitor/antagonistmonastrolneoplasticneoplastic cellnovelpenis foreskinpharmacophorepublic health relevancescreeningsmall moleculetumortumor growthtumorigenesis
项目摘要
DESCRIPTION (provided by applicant): Chromosome instability drives cancers to a state of aneuploidy which, in turn, is thought to drive mutations that lead to tumorigenesis. The broad goal of this project is to understand how alterations in microtubule dynamics lead to chromosome instability. Specifically, we have preliminary data indicating that increased microtubule polymerization rates, which serve as a readout for changes in regulation of microtubule dynamics, are correlated with chromosome instability. Furthermore, the lesions that result in increased microtubule dynamics are not always predictable based on established signaling pathways. We have developed a relatively simple visual assay for lesions that lead to increased microtubule polymerization rates. We have also found that microtubule polymerization rates can be rescued and restored to normal levels by experimental alterations in regulatory molecules, some of which are known to be manageable by small molecule inhibitors. We hypothesize that chromosome instability deriving from changes in microtubule dynamics represents a subclass of neoplastic alterations that could be preferentially responsive to certain classes of therapeutics. Our approach is to screen for genes whose loss leads to increased microtubule polymerization rates. The screens will be performed at the Quellos High Throughput Screening Core at the University of Washington. Initially we will use an established transformed cell line which serves as a model system for chromosome instability because it stably maintains a consistent ploidy. We will then confirm hits in primary human cells. These genes will represent good candidates for therapeutic drugs. Finally, new therapies may be discovered by screening for revertants using the ChemBridge corporation library of 115,000 small molecules available at the Quellos High Throughput Screening Core at the Institute for Stem Cell and Regenerative Medicine at the University of Washington.
描述(由申请人提供):染色体不稳定性将癌症驱动到非整倍体状态,这反过来被认为会驱动导致肿瘤发生的突变。该项目的主要目标是了解微管动力学的改变如何导致染色体不稳定。具体来说,我们有初步的数据表明,增加微管聚合率,作为一个读数的变化,在调控微管动力学,与染色体不稳定性。此外,导致微管动力学增加的病变并不总是基于已建立的信号传导途径可预测的。我们已经开发了一种相对简单的视觉检测方法,用于检测导致微管聚合速率增加的病变。我们还发现,微管聚合速率可以通过调节分子的实验性改变来挽救并恢复到正常水平,其中一些已知可通过小分子抑制剂来管理。我们假设,染色体不稳定性来自微管动力学的变化代表了一个亚类的肿瘤性改变,可以优先响应某些类别的治疗。我们的方法是筛选基因的损失导致增加微管聚合率。这些屏幕将在华盛顿大学的Quellos High Quelput Screening Core进行。最初,我们将使用已建立的转化细胞系作为染色体不稳定性的模型系统,因为它稳定地保持一致的倍性。然后我们将确认在原代人类细胞中的命中。这些基因将代表治疗药物的良好候选者。最后,通过使用ChemBridge公司的115,000个小分子库筛选回复突变体,可以发现新的疗法,该库可在华盛顿大学干细胞和再生医学研究所的Quellos高重复筛选核心获得。
项目成果
期刊论文数量(0)
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Linda Wordeman其他文献
Linda Wordeman的其他文献
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{{ truncateString('Linda Wordeman', 18)}}的其他基金
Microtuble-dependent markers for chromosome instability
染色体不稳定的微管依赖性标记
- 批准号:
8827718 - 财政年份:2014
- 资助金额:
$ 20.16万 - 项目类别:
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