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A New Model: The Mammalian Brain is Derived from Two Separate Regional Progenitors
A New Model: The Mammalian Brain is Derived from Two Separate Regional Progenitors
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105620
- ISBN
- 9798265428516
- DDC
- 574
- 서명/저자
- A New Model: The Mammalian Brain is Derived from Two Separate Regional Progenitors
- 발행사항
- [Sl] : Stanford University, 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 141 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Loh, Kyle.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2023.
- 초록/해제
- 요약The mammalian brain is a truly remarkable organ, and its mature form is the culmination of a complex sequence of developmental biology. A key component of this complexity lies in the fact that the brain is not a homogeneous tissue, but rather a modular system with distinct sub-regions that work in close concert with one another. In the developing organism, the first identifiable brain sub-regions are the forebrain, midbrain, and hindbrain. All sub-regions of the brain are derived from the ectoderm germ layer of the embryo, yet the precise embryonic cues for inducing these regions, and the developmental timing of those cues, remains incompletely understood. In this thesis, I have employed two complementary approaches to elucidate the first steps of brain development and subregional patterning. First, I used mouse embryonic lineage tracing to label and follow populations of cells in the neural ectoderm in vivo. I found that cells labeled in the posterior domains of mouse gastrula-stage embryos exclusively gave rise to the hindbrain, but not forebrain or midbrain. These data revealed that regional identity may be established concomitantly with neural identity. Second, I used human pluripotent stem cells (hPSCs, which have the developmental potential to become any cell in the body) to precisely determine the sequence of signals required to generate embryonic forebrain, midbrain, and hindbrain. Surprisingly, hPSC-derived anterior neural ectoderm (aNE) was restricted to generate forebrain and midbrain, and hPSC-derived posterior neural ectoderm (pNE) was restricted to hindbrain fates, consistent with my in vivo data. I thus propose a revised model of brain development in which the neural ectoderm is already restricted to specific subregions of the brain, which has substantial implications for our ability to model human brain development using hPSCs.
- 일반주제명
- Hybridization
- 일반주제명
- Embryos
- 일반주제명
- Neurons
- 일반주제명
- Gene expression
- 일반주제명
- Stem cells
- 일반주제명
- Brain research
- 일반주제명
- Developmental biology
- 일반주제명
- Regenerative medicine
- 일반주제명
- Transcription factors
- 일반주제명
- Genetic engineering
- 일반주제명
- Bioinformatics
- 일반주제명
- Cellular biology
- 일반주제명
- Genetics
- 일반주제명
- Medicine
- 일반주제명
- Neurosciences
- 일반주제명
- Engineering
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798265428516
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■035 ▼a(MiAaPQ)Stanfordks142pt7844
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574
■1001 ▼aDundes, Carolyn Elizabeth.
■24512▼aA New Model: The Mammalian Brain is Derived from Two Separate Regional Progenitors
■260 ▼a[Sl]▼bStanford University▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a141 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Loh, Kyle.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2023.
■520 ▼aThe mammalian brain is a truly remarkable organ, and its mature form is the culmination of a complex sequence of developmental biology. A key component of this complexity lies in the fact that the brain is not a homogeneous tissue, but rather a modular system with distinct sub-regions that work in close concert with one another. In the developing organism, the first identifiable brain sub-regions are the forebrain, midbrain, and hindbrain. All sub-regions of the brain are derived from the ectoderm germ layer of the embryo, yet the precise embryonic cues for inducing these regions, and the developmental timing of those cues, remains incompletely understood. In this thesis, I have employed two complementary approaches to elucidate the first steps of brain development and subregional patterning. First, I used mouse embryonic lineage tracing to label and follow populations of cells in the neural ectoderm in vivo. I found that cells labeled in the posterior domains of mouse gastrula-stage embryos exclusively gave rise to the hindbrain, but not forebrain or midbrain. These data revealed that regional identity may be established concomitantly with neural identity. Second, I used human pluripotent stem cells (hPSCs, which have the developmental potential to become any cell in the body) to precisely determine the sequence of signals required to generate embryonic forebrain, midbrain, and hindbrain. Surprisingly, hPSC-derived anterior neural ectoderm (aNE) was restricted to generate forebrain and midbrain, and hPSC-derived posterior neural ectoderm (pNE) was restricted to hindbrain fates, consistent with my in vivo data. I thus propose a revised model of brain development in which the neural ectoderm is already restricted to specific subregions of the brain, which has substantial implications for our ability to model human brain development using hPSCs.
■590 ▼aSchool code: 0212.
■650 4▼aHybridization
■650 4▼aEmbryos
■650 4▼aNeurons
■650 4▼aGene expression
■650 4▼aStem cells
■650 4▼aBrain research
■650 4▼aDevelopmental biology
■650 4▼aRegenerative medicine
■650 4▼aTranscription factors
■650 4▼aGenetic engineering
■650 4▼aBioinformatics
■650 4▼aCellular biology
■650 4▼aGenetics
■650 4▼aMedicine
■650 4▼aNeurosciences
■650 4▼aEngineering
■690 ▼a0758
■690 ▼a0715
■690 ▼a0379
■690 ▼a0369
■690 ▼a0564
■690 ▼a0317
■690 ▼a0537
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360793▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


