Ribosomes and Growth Regulation
核糖体和生长调节
基本信息
- 批准号:9160502
- 负责人:
- 金额:$ 30.9万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-09-08 至 2020-08-31
- 项目状态:已结题
- 来源:
- 关键词:AffectAnabolismAneuploid CellsAnimalsCancer EtiologyCell CycleCell ProliferationCell SizeCell SurvivalCellsChildhoodCirrhosisDNA SequenceDefectDevelopmentDiamondDiamond-Blackfan anemiaDiseaseDrosophila genusEssential GenesExhibitsFeedbackGene DosageGene ExpressionGene TargetingGene-ModifiedGenesGeneticGenetic TranscriptionGenetic studyGenomeGenotypeGrowthGrowth and Development functionHeart DiseasesHeart HypertrophyHeterozygoteHistocompatibility TestingHumanImmunohistochemistryInheritedLabelLeadLongevityMaintenanceMalignant NeoplasmsMandibulofacial DysostosisMapsMicroscopyModelingMolecular GeneticsMutationNeurofibromin 2North American IndiansNorthern BlottingNucleic Acid Regulatory SequencesOrganOrganismPathway interactionsProcessProtein BiosynthesisRegulationResistanceResolutionRibosomal ProteinsRibosomal RNARibosomesRoleSpleenSyndromeTestingTissuesTranslationsTransmission Electron MicroscopybZIP Domainbasecell fixingcell growthcell typeimaginal discimprovedirradiationloss of functionmacromoleculemutantnovelnovel therapeuticsoverexpressionprogramsreproductivetranscription factortranscriptometranscriptome sequencing
项目摘要
Ribosomes are responsible for protein synthesis and therefore necessary for the growth
of all organs, in both normal development and in disease conditions such as cancer or
cardiac hypertrophy. A number of congenital conditions, collectively termed
ribosomopathies, result from defects in components of the ribosome or affect its
biosynthesis. It is unclear why ribosomopathies have such distinct effects from one
another, and it is unclear why mutations in ribosomal genes can cause cancer, since
they are required for growth. Reducing the number of ribosomal genes reduces growth
rate but surprisingly this has been found to be mainly due to the activation of a new,
previously unstudied gene that is believed to encode a transcription factor. To
understand how growth is affected, the target genes of this new transcription factor will
be identified using a combination of genetic and molecular genetic studies that are
possible in the fruitfly. To understand how the new pathway responds to ribosomal
protein gene copy number, the DNA sequences that react to such changes will be
mapped and characterized. The effect of ribosomal protein gene copy changes on the
number of ribosomes, and on the accumulation of their assembly intermediates will be
determined to indicate how gene expression is most likely affected. To explore what
advantage might accrue from a pathway that slows growth and development, the
implications for cell competition, the maintenance of cell size, and for organismal
longevity, resistance to genome damage, and body symmetry will be assessed. Given
that ribosomes are essential components of all cells, the results of these basic studies
are likely to improve understanding of growth in all organs, and diseases that affect
growth including cancer, heart disease, and ribosomopathies.
核糖体负责蛋白质的合成,因此是生长所必需的。
在所有器官中,既处于正常发育状态,也处于疾病状态,如癌症或
心肌肥厚。一些先天性疾病,统称为
核糖病,由核糖体成分缺陷引起或影响其
生物合成。目前尚不清楚为什么核糖体疾病的影响与核糖体疾病如此不同。
另一种是核糖体基因突变导致癌症的原因尚不清楚,因为
它们是增长所必需的。减少核糖体基因的数量会降低生长速度
但令人惊讶的是,这主要是由于一种新的、
以前未被研究过的被认为编码转录因子的基因。至
了解生长是如何受到影响的,这种新转录因子的目标基因将
使用遗传学和分子遗传学研究相结合的方法进行鉴定
在果蝇身上是可能的。为了了解核糖体对新途径的反应
蛋白质基因拷贝数,对这种变化作出反应的DNA序列将是
绘制并刻画了。核糖体蛋白基因拷贝变化对大鼠血管紧张素转换酶的影响
核糖体的数量,以及对其组装中间体的积累
确定表明基因表达最有可能受到影响的。去探索什么
优势可能来自一条减缓增长和发展的道路,
对细胞竞争、维持细胞大小以及对生物体的影响
将对寿命、对基因组损伤的抵抗力和身体对称性进行评估。vt.给出
核糖体是所有细胞的重要组成部分,这些基础研究的结果
可能会提高对所有器官发育的了解,以及影响
生长,包括癌症、心脏病和核糖体疾病。
项目成果
期刊论文数量(0)
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Nicholas E Baker其他文献
Nicholas E Baker的其他文献
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{{ truncateString('Nicholas E Baker', 18)}}的其他基金
Identifying mechanisms that detect and eliminate aneuploid cells
识别检测和消除非整倍体细胞的机制
- 批准号:
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- 资助金额:
$ 30.9万 - 项目类别:
Advanced Confocal Microscope in a multi-user facility
多用户设施中的先进共焦显微镜
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9274630 - 财政年份:2017
- 资助金额:
$ 30.9万 - 项目类别:
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