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Signals Influencing the Development of Adult Follicle Stem Cells and Their Niche Cells in the Pupal Drosophila Ovary
Signals Influencing the Development of Adult Follicle Stem Cells and Their Niche Cells in the Pupal Drosophila Ovary
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152812
- ISBN
- 9798384033141
- DDC
- 574
- 저자명
- Misner, Rachel.
- 서명/저자
- Signals Influencing the Development of Adult Follicle Stem Cells and Their Niche Cells in the Pupal Drosophila Ovary
- 발행사항
- [Sl] : Columbia University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 179 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Kalderon, Daniel.
- 학위논문주기
- Thesis (Ph.D.)--Columbia University, 2024.
- 초록/해제
- 요약Adult stem cells are key components of animal biology, with the vital task of replenishing cells in numerous tissue types. This function hinges on the prior specification and arrangement of requisite numbers of stem cells and supportive niche cells during development. Here, I investigate the signaling pathways which act on adult Drosophila ovarian Follicle Stem Cells (FSCs) and their niche cells, Escort Cells (ECs) and Follicle Cells (FCs), during pupal development; location of a cell upon eclosion determines cell identity. Using lineage tracing approaches, we examine how the Wnt, JAK-STAT, Hippo, and Hedgehog pathways influence precursor behaviors, namely cell division, location, and survival, with a focus on the novel process underlying budding of the first egg chamber midway through pupation. We find that pupal Intermingled Cells (ICs), the precursors to adult ECs, FSCs, and FCs, are also the source of Extra Germarial Crown (EGC) cells and basal stalk cells which surround the first budded egg chamber. As in adults, Wnt primarily affects precursor location, with high Wnt corresponding to anterior cell fates and low Wnt producing a posterior bias. JAK-STAT has a similar, but reverse, effect on location, and appears to contribute to division in posterior locations. The Hippo pathway, mediated by its effector Yorkie (Yki), mainly affects precursor division and survival, with some effects on location. The role of the Hedgehog pathway in precursor division and posterior movement appears to be mediated via Yki activity. Understanding these developmental processes could contribute to generating organoids for therapeutic discovery.
- 일반주제명
- Developmental biology
- 일반주제명
- Cellular biology
- 일반주제명
- Pharmaceutical sciences
- 일반주제명
- Molecular biology
- 일반주제명
- Biochemistry
- 키워드
- Drosophila
- 키워드
- Ovary
- 키워드
- Stem cells
- 기타저자
- Columbia University Biological Sciences
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017163945
■00520250211152812
■006m o d
■007cr#unu||||||||
■020 ▼a9798384033141
■035 ▼a(MiAaPQ)AAI31558122
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574
■1001 ▼aMisner, Rachel.
■24510▼aSignals Influencing the Development of Adult Follicle Stem Cells and Their Niche Cells in the Pupal Drosophila Ovary
■260 ▼a[Sl]▼bColumbia University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a179 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Kalderon, Daniel.
■5021 ▼aThesis (Ph.D.)--Columbia University, 2024.
■520 ▼aAdult stem cells are key components of animal biology, with the vital task of replenishing cells in numerous tissue types. This function hinges on the prior specification and arrangement of requisite numbers of stem cells and supportive niche cells during development. Here, I investigate the signaling pathways which act on adult Drosophila ovarian Follicle Stem Cells (FSCs) and their niche cells, Escort Cells (ECs) and Follicle Cells (FCs), during pupal development; location of a cell upon eclosion determines cell identity. Using lineage tracing approaches, we examine how the Wnt, JAK-STAT, Hippo, and Hedgehog pathways influence precursor behaviors, namely cell division, location, and survival, with a focus on the novel process underlying budding of the first egg chamber midway through pupation. We find that pupal Intermingled Cells (ICs), the precursors to adult ECs, FSCs, and FCs, are also the source of Extra Germarial Crown (EGC) cells and basal stalk cells which surround the first budded egg chamber. As in adults, Wnt primarily affects precursor location, with high Wnt corresponding to anterior cell fates and low Wnt producing a posterior bias. JAK-STAT has a similar, but reverse, effect on location, and appears to contribute to division in posterior locations. The Hippo pathway, mediated by its effector Yorkie (Yki), mainly affects precursor division and survival, with some effects on location. The role of the Hedgehog pathway in precursor division and posterior movement appears to be mediated via Yki activity. Understanding these developmental processes could contribute to generating organoids for therapeutic discovery.
■590 ▼aSchool code: 0054.
■650 4▼aDevelopmental biology
■650 4▼aCellular biology
■650 4▼aPharmaceutical sciences
■650 4▼aMolecular biology
■650 4▼aBiochemistry
■653 ▼aDrosophila
■653 ▼aFollicle Stem Cells
■653 ▼aOvary
■653 ▼aPupal development
■653 ▼aSignaling pathways
■653 ▼aStem cells
■690 ▼a0758
■690 ▼a0379
■690 ▼a0487
■690 ▼a0307
■690 ▼a0572
■71020▼aColumbia University▼bBiological Sciences.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0054
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163945▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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