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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 ...
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  
Follicle Stem Cells
키워드  
Ovary
키워드  
Pupal development
키워드  
Signaling pathways
키워드  
Stem cells
기타저자  
Columbia University Biological Sciences
기본자료저록  
Dissertations Abstracts International. 86-03B.
전자적 위치 및 접속  
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MARC

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■006m          o    d                
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■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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