Investigating the role of notochord segmentation in spine morphogenesis
研究脊索分割在脊柱形态发生中的作用
基本信息
- 批准号:9977919
- 负责人:
- 金额:$ 3.27万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-08-01 至 2021-05-31
- 项目状态:已结题
- 来源:
- 关键词:AddressAffectBilateralBiological ModelsCell Differentiation processCellsCharacteristicsCuesDataDefectDiagnosticEmbryoEpithelialEpitheliumFutureGenesGoalsHumanImageIntervertebral disc structureLateralLeadLightMesodermModelingMolecularMorphogenesisMusMutationOsteoblastsParaxial MesodermPathway interactionsPatternPharmacologyPhysical condensationProcessRegulationRoleSamplingSclerotomeSegmentation Clock PathwaySignal TransductionSomitesStructureSurfaceTestingTissuesVertebral columnVisualizationWorkZebrafishbasedifferential expressiongenetic manipulationimaging capabilitiesmalformationnotch proteinnotochordnovelrecruitsomitogenesisspine bone structuretooltranscriptomicsvertebra body
项目摘要
Abstract:
The spine is a segmented axial structure comprised of alternating vertebral bodies (centra) and
intervertebral discs (IVDs). The current model of spine patterning hinges upon segmentation of the embryonic
paraxial mesoderm (PM) and its subsequent re-segmentation and condensation around the notochord to
produce the characteristic alternating pattern of centra and IVDs. While mutations in segmentation genes
are known to cause spine defects, whether this machinery primarily affects patterning of the PM, the
notochord, or both remains unknown. Thus, a complete understanding of how PM-derived cells migrate to
the notochord to produce sharp vertebral segments separated by regular gaps remains unresolved.
Using a zebrafish model, we will follow a comprehensive approach combining live imaging,
transcriptomics and genetic manipulations to dissect the role of the notochord in the specification of
vertebral segments and IVDs. Understanding the cellular and molecular mechanisms acting in the
notochord during spine segmentation will provide a more complete understanding of vertebral patterning.
摘要:
脊柱是一个分段的轴向结构,由交替的椎体(椎体)和
目前的脊柱模式取决于胚胎椎间盘的分割,
近轴中胚层(PM)及其随后的再分裂和浓缩在脊索周围,
产生中央和IVD的特征性交替模式。而分割基因的突变
已知会导致脊柱缺陷,无论这种机制是否主要影响PM的模式,
因此,对PM-MSCs来源的细胞如何迁移到脊索,
脊索产生由规则间隙分开的尖锐椎骨节段的问题仍然没有解决。
使用斑马鱼模型,我们将遵循一种综合方法,结合实时成像,
转录组学和遗传操作,以解剖脊索的作用,
脊椎节段和IVD。了解细胞和分子机制,
在脊柱分割期间的脊索将提供对椎骨图案的更完整的理解。
项目成果
期刊论文数量(0)
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Susan E Wopat其他文献
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{{ truncateString('Susan E Wopat', 18)}}的其他基金
Investigating the role of notochord segmentation in spine morphogenesis
研究脊索分割在脊柱形态发生中的作用
- 批准号:
9766071 - 财政年份:2018
- 资助金额:
$ 3.27万 - 项目类别:
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