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Modeling Human Axial Patterning and Segmentation
Modeling Human Axial Patterning and Segmentation
Modeling Human Axial Patterning and Segmentation

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202103548
ISBN  
9798280720244
DDC  
530
저자명  
Yaman, Yusuf Ilker.
서명/저자  
Modeling Human Axial Patterning and Segmentation
발행사항  
[Sl] : Harvard University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
157 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
주기사항  
Advisor: Ramanathan, Sharad.
학위논문주기  
Thesis (Ph.D.)--Harvard University, 2025.
초록/해제  
요약During embryonic development, the body plan is established through the precise coordination of cell signaling, fate specification, and morphogenesis across space and time. In vertebrates, this is exemplified by somitogenesis-the sequential formation of somites during axial development- which segments the body and relies on tightly regulated differentiation and morphogenesis. While the molecular players and signaling mechanisms of somitogenesis vary across model organisms, our understanding of human axial morphogenesis has been limited by the inaccessibility of early human embryos. Here, we overcome these challenges by generating axially elongating organoids through the induction of anteroposterior symmetry breaking in spatially coupled epithelial cysts derived from human pluripotent stem cells. These organoids reproducibly recapitulate the formation of a neural tube flanked by presomitic mesoderm that is sequentially and periodically segmented into anteroposteriorly polarized somites. Using a combination of chemical and genetic perturbations, single-cell transcriptomics, and live fluorescent microscopy, we investigate the principles linking the spatiotemporal dynamics of signaling, patterning, and morphogenesis during human axial development. By generating and perturbing organoids that robustly recapitulate the architecture of multiple axial tissues found in human embryos, this work provides a platform to dissect the mechanisms driving human development.
일반주제명  
Applied physics
일반주제명  
Developmental biology
일반주제명  
Cellular biology
키워드  
Embryonic development
키워드  
Cell signaling
키워드  
Anteroposterior symmetry
키워드  
Epithelial cysts
기타저자  
Harvard University Engineering and Applied Sciences - Applied Physics
기본자료저록  
Dissertations Abstracts International. 86-12B.
전자적 위치 및 접속  
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MARC

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■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aYaman,  Yusuf  Ilker.▼0(orcid)0000-0003-4094-616X
■24510▼aModeling  Human  Axial  Patterning  and  Segmentation
■260    ▼a[Sl]▼bHarvard  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a157  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-12,  Section:  B.
■500    ▼aAdvisor:  Ramanathan,  Sharad.
■5021  ▼aThesis  (Ph.D.)--Harvard  University,  2025.
■520    ▼aDuring  embryonic  development,  the  body  plan  is  established  through  the  precise  coordination  of  cell  signaling,  fate  specification,  and  morphogenesis  across  space  and  time.  In  vertebrates,  this  is  exemplified  by  somitogenesis-the  sequential  formation  of  somites  during  axial  development-  which  segments  the  body  and  relies  on  tightly  regulated  differentiation  and  morphogenesis.  While  the  molecular  players  and  signaling  mechanisms  of  somitogenesis  vary  across  model  organisms,  our  understanding  of  human  axial  morphogenesis  has  been  limited  by  the  inaccessibility  of  early  human  embryos.  Here,  we  overcome  these  challenges  by  generating  axially  elongating  organoids  through  the  induction  of  anteroposterior  symmetry  breaking  in  spatially  coupled  epithelial  cysts  derived  from  human  pluripotent  stem  cells.  These  organoids  reproducibly  recapitulate  the  formation  of  a  neural  tube  flanked  by  presomitic  mesoderm  that  is  sequentially  and  periodically  segmented  into  anteroposteriorly  polarized  somites.  Using  a  combination  of  chemical  and  genetic  perturbations,  single-cell  transcriptomics,  and  live  fluorescent  microscopy,  we  investigate  the  principles  linking  the  spatiotemporal  dynamics  of  signaling,  patterning,  and  morphogenesis  during  human  axial  development.  By  generating  and  perturbing  organoids  that  robustly  recapitulate  the  architecture  of  multiple  axial  tissues  found  in  human  embryos,  this  work  provides  a  platform  to  dissect  the  mechanisms  driving  human  development.
■590    ▼aSchool  code:  0084.
■650  4▼aApplied  physics
■650  4▼aDevelopmental  biology
■650  4▼aCellular  biology
■653    ▼aEmbryonic  development
■653    ▼aCell  signaling
■653    ▼aAnteroposterior  symmetry
■653    ▼aEpithelial  cysts
■690    ▼a0215
■690    ▼a0758
■690    ▼a0379
■71020▼aHarvard  University▼bEngineering  and  Applied  Sciences  -  Applied  Physics.
■7730  ▼tDissertations  Abstracts  International▼g86-12B.
■790    ▼a0084
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357702▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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