본문

서브메뉴

The Role of Folate Receptor 1 in Axon Development
The Role of Folate Receptor 1 in Axon Development
The Role of Folate Receptor 1 in Axon Development

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211150917
ISBN  
9798382605036
DDC  
612
저자명  
Bischak, Kristina M.
서명/저자  
The Role of Folate Receptor 1 in Axon Development
발행사항  
[Sl] : University of California, Davis, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
61 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
주기사항  
Advisor: Borodinsky, Laura N.
학위논문주기  
Thesis (Ph.D.)--University of California, Davis, 2024.
초록/해제  
요약During early nervous system development, neural stem cells exit the cell cycle and commit to the neuronal phenotype, after which begins the process of neurite outgrowth that gives rise to axons and dendrites. Axons are responsible for establishing and maintaining synaptic connections with target tissues during nervous system development, and are thus essential for the continued development and functionality of the central nervous system (CNS). Folate receptor 1 (Folr1), one of several folate uptake systems, is necessary for the formation of the neural tube, a process that occurs before neurons differentiate and adopt their neuronal morphology. Deficiency of Folr1 in developing vertebrate embryos leads to neural tube defects because of the failure of the neural tube to form and close. Whether Folr1 is important for later stages of spinal cord development is not yet known. Thus, the focus of my thesis is to investigate the role of Folr1 in axon development in the embryonic spinal cord. Here I show that Folr1 is expressed throughout the axons of embryonic spinal cord explants isolated from neural tube stage X. laevis embryos. Using a loss-of-function approach I show that knockdown of Folr1 in embryonic spinal cord explants results in axon retraction, as well as reduced βIII-tubulin enrichment in axons and altered filopodia production and actin dynamics in axonal growth cones. Moreover, I find that the elongation factor eEF1A2, a GTP-binding protein that non-canonically regulates F-actin dynamics, interacts and colocalizes with Folr1 in embryonic spinal cord neuron axons. Knockdown of Folr1 results in depletion of eEF1A2 and phospho(Ser358)-eEF1A2 in axons, and altered localization of eEF1A2 in growth cones. Taken together, these results indicate that Folr1 is important for axon outgrowth during spinal cord development and suggest that interaction of Folr1 with eEF1A2 facilitates proper function of cytoskeletal proteins important for growth cone dynamics.
일반주제명  
Physiology
일반주제명  
Neurosciences
일반주제명  
Cellular biology
일반주제명  
Molecular biology
일반주제명  
Developmental biology
키워드  
Axon development
키워드  
Cytoskeleton
키워드  
Elongation factor
키워드  
Folate receptor 1
키워드  
Neurodevelopment
키워드  
Xenopus laevis
기타저자  
University of California, Davis Molecular Cellular and Integrative Physiology
기본자료저록  
Dissertations Abstracts International. 85-11B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008250123s2024        us                              c    eng  d
■001000017160138
■00520250211150917
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798382605036
■035    ▼a(MiAaPQ)AAI30816555
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a612
■1001  ▼aBischak,  Kristina  M.
■24510▼aThe  Role  of  Folate  Receptor  1  in  Axon  Development
■260    ▼a[Sl]▼bUniversity  of  California,  Davis▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a61  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-11,  Section:  B.
■500    ▼aAdvisor:  Borodinsky,  Laura  N.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Davis,  2024.
■520    ▼aDuring  early  nervous  system  development,  neural  stem  cells  exit  the  cell  cycle  and  commit  to  the  neuronal  phenotype,  after  which  begins  the  process  of  neurite  outgrowth  that  gives  rise  to  axons  and  dendrites.  Axons  are  responsible  for  establishing  and  maintaining  synaptic  connections  with  target  tissues  during  nervous  system  development,  and  are  thus  essential  for  the  continued  development  and  functionality  of  the  central  nervous  system  (CNS).  Folate  receptor  1  (Folr1),  one  of  several  folate  uptake  systems,  is  necessary  for  the  formation  of  the  neural  tube,  a  process  that  occurs  before  neurons  differentiate  and  adopt  their  neuronal  morphology.  Deficiency  of  Folr1  in  developing  vertebrate  embryos  leads  to  neural  tube  defects  because  of  the  failure  of  the  neural  tube  to  form  and  close.  Whether  Folr1  is  important  for  later  stages  of  spinal  cord  development  is  not  yet  known.  Thus,  the  focus  of  my  thesis  is  to  investigate  the  role  of  Folr1  in  axon  development  in  the  embryonic  spinal  cord.  Here  I  show  that  Folr1  is  expressed  throughout  the  axons  of  embryonic  spinal  cord  explants  isolated  from  neural  tube  stage  X.  laevis  embryos.  Using  a  loss-of-function  approach  I  show  that  knockdown  of  Folr1  in  embryonic  spinal  cord  explants  results  in  axon  retraction,  as  well  as  reduced  βIII-tubulin  enrichment  in  axons  and  altered  filopodia  production  and  actin  dynamics  in  axonal  growth  cones.  Moreover,  I  find  that  the  elongation  factor  eEF1A2,  a  GTP-binding  protein  that  non-canonically  regulates  F-actin  dynamics,  interacts  and  colocalizes  with  Folr1  in  embryonic  spinal  cord  neuron  axons.  Knockdown  of  Folr1  results  in  depletion  of  eEF1A2  and  phospho(Ser358)-eEF1A2  in  axons,  and  altered  localization  of  eEF1A2  in  growth  cones.  Taken  together,  these  results  indicate  that  Folr1  is  important  for  axon  outgrowth  during  spinal  cord  development  and  suggest  that  interaction  of  Folr1  with  eEF1A2  facilitates  proper  function  of  cytoskeletal  proteins  important  for  growth  cone  dynamics.
■590    ▼aSchool  code:  0029.
■650  4▼aPhysiology
■650  4▼aNeurosciences
■650  4▼aCellular  biology
■650  4▼aMolecular  biology
■650  4▼aDevelopmental  biology
■653    ▼aAxon  development
■653    ▼aCytoskeleton
■653    ▼aElongation  factor
■653    ▼aFolate  receptor  1
■653    ▼aNeurodevelopment
■653    ▼aXenopus  laevis
■690    ▼a0719
■690    ▼a0317
■690    ▼a0379
■690    ▼a0307
■690    ▼a0758
■71020▼aUniversity  of  California,  Davis▼bMolecular,  Cellular  and  Integrative  Physiology.
■7730  ▼tDissertations  Abstracts  International▼g85-11B.
■790    ▼a0029
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160138▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF13058 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.