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Spatial Biology Tools to Accelerate and Refine Adeno-Associated Virus Engineering and Application
Spatial Biology Tools to Accelerate and Refine Adeno-Associated Virus Engineering and Appl...
Spatial Biology Tools to Accelerate and Refine Adeno-Associated Virus Engineering and Application

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자료유형  
 학위논문 서양
최종처리일시  
20260202103653
ISBN  
9798290629568
DDC  
579.2
저자명  
Coughlin, Gerard Michael.
서명/저자  
Spatial Biology Tools to Accelerate and Refine Adeno-Associated Virus Engineering and Application
발행사항  
[Sl] : California Institute of Technology, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
164 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
주기사항  
Advisor: Gradinaru, Viviana.
학위논문주기  
Thesis (Ph.D.)--California Institute of Technology, 2025.
초록/해제  
요약The transfer of exogenous genetic material into living cells is a fundamental technique for basic research and, increasingly, for the treatment of human disease. Adeno-associated viruses (AAVs) are small, unenveloped viruses that can carry a limited DNA cargo of 4.4 kb (plus 0.3 kb inverted terminal repeats). These vectors are workhorses for in vivogene transfer into mammalian systems, both for fundamental research and for therapeutic purposes. Natural serotypes of AAVs generally show broad tropism for easy to access tissues. Engineering of AAVs, through modification to the capsid surface and/or to the DNA genome, can enable access to otherwise privileged organs (e.g., brain) and can refine tropism to specific cell types (e.g., Purkinje cells of the cerebellum). Such engineering efforts can generate hundreds to thousands of interesting variants, but there is a dearth of high-throughput methods to characterize these variants. Furthermore, despite widespread usage, including in human patients, many questions on fundamental AAV biology remain unanswered.In this thesis, I attempt to address some of these outstanding bottlenecks and open questions. In Chapter 2, I address the lack of high-throughput methods for broadly characterizing engineered AAV vectors in vivo, by developing and applying high-throughput spatial transcriptomics for AAV transcripts. In Chapter 3, I focus on understanding the biology of AAV genome processing, illuminated by novel spatial genomics methods. Using these novel methods, I then profile and mechanistically dissect transcriptional crosstalk between codelivered AAV vectors (Chapter 4). Finally, in Chapter 5, I address the limited packaging capacity of AAV vectors by leveraging AAV transcriptional crosstalk to enable minimally invasive, all-AAV cell type-specific gene editing in wildtype animals, with enough efficiency to recapitulate known phenotypes.The work presented in this thesis will help to accelerate and refine AAV engineering and application. Furthermore, this thesis highlights potential confounds for AAV genome engineering, but also opens new avenues for AAV-powered functional genetics in mammalian systems.
일반주제명  
Viruses
일반주제명  
Vectors (Biology)
일반주제명  
Mutation
일반주제명  
Cytomegalovirus
일반주제명  
Biomedical engineering
일반주제명  
Virology
기타저자  
California Institute of Technology Biology and Biological Engineering
기본자료저록  
Dissertations Abstracts International. 87-04B.
전자적 위치 및 접속  
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MARC

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■00520260202103653
■006m          o    d                
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■020    ▼a9798290629568
■035    ▼a(MiAaPQ)AAI32098767
■035    ▼a(MiAaPQ)Caltech17161
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a579.2
■1001  ▼aCoughlin,  Gerard  Michael.
■24510▼aSpatial  Biology  Tools  to  Accelerate  and  Refine  Adeno-Associated  Virus  Engineering  and  Application
■260    ▼a[Sl]▼bCalifornia  Institute  of  Technology▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a164  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-04,  Section:  B.
■500    ▼aAdvisor:  Gradinaru,  Viviana.
■5021  ▼aThesis  (Ph.D.)--California  Institute  of  Technology,  2025.
■520    ▼aThe  transfer  of  exogenous  genetic  material  into  living  cells  is  a  fundamental  technique  for  basic  research  and,  increasingly,  for  the  treatment  of  human  disease.  Adeno-associated  viruses  (AAVs)  are  small,  unenveloped  viruses  that  can  carry  a  limited  DNA  cargo  of  4.4  kb  (plus  0.3  kb  inverted  terminal  repeats).  These  vectors  are  workhorses  for  in  vivogene  transfer  into  mammalian  systems,  both  for  fundamental  research  and  for  therapeutic  purposes.  Natural  serotypes  of  AAVs  generally  show  broad  tropism  for  easy  to  access  tissues.  Engineering  of  AAVs,  through  modification  to  the  capsid  surface  and/or  to  the  DNA  genome,  can  enable  access  to  otherwise  privileged  organs  (e.g.,  brain)  and  can  refine  tropism  to  specific  cell  types  (e.g.,  Purkinje  cells  of  the  cerebellum).  Such  engineering  efforts  can  generate  hundreds  to  thousands  of  interesting  variants,  but  there  is  a  dearth  of  high-throughput  methods  to  characterize  these  variants.  Furthermore,  despite  widespread  usage,  including  in  human  patients,  many  questions  on  fundamental  AAV  biology  remain  unanswered.In  this  thesis,  I  attempt  to  address  some  of  these  outstanding  bottlenecks  and  open  questions.  In  Chapter  2,  I  address  the  lack  of  high-throughput  methods  for  broadly  characterizing  engineered  AAV  vectors  in  vivo,  by  developing  and  applying  high-throughput  spatial  transcriptomics  for  AAV  transcripts.  In  Chapter  3,  I  focus  on  understanding  the  biology  of  AAV  genome  processing,  illuminated  by  novel  spatial  genomics  methods.  Using  these  novel  methods,  I  then  profile  and  mechanistically  dissect  transcriptional  crosstalk  between  codelivered  AAV  vectors  (Chapter  4).  Finally,  in  Chapter  5,  I  address  the  limited  packaging  capacity  of  AAV  vectors  by  leveraging  AAV  transcriptional  crosstalk  to  enable  minimally  invasive,  all-AAV  cell  type-specific  gene  editing  in  wildtype  animals,  with  enough  efficiency  to  recapitulate  known  phenotypes.The  work  presented  in  this  thesis  will  help  to  accelerate  and  refine  AAV  engineering  and  application.  Furthermore,  this  thesis  highlights  potential  confounds  for  AAV  genome  engineering,  but  also  opens  new  avenues  for  AAV-powered  functional  genetics  in  mammalian  systems.
■590    ▼aSchool  code:  0037.
■650  4▼aViruses
■650  4▼aVectors  (Biology)
■650  4▼aMutation
■650  4▼aCytomegalovirus
■650  4▼aBiomedical  engineering
■650  4▼aVirology
■690    ▼a0720
■690    ▼a0541
■71020▼aCalifornia  Institute  of  Technology▼bBiology  and  Biological  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g87-04B.
■790    ▼a0037
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358166▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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