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Building a Technology Platform for DNA-Encoded Chemical Library Selection Using Cellular Phenotypes
Building a Technology Platform for DNA-Encoded Chemical Library Selection Using Cellular P...
Building a Technology Platform for DNA-Encoded Chemical Library Selection Using Cellular Phenotypes

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202102951
ISBN  
9798283479699
DDC  
574
저자명  
Sander, Philipp Nikolaus.
서명/저자  
Building a Technology Platform for DNA-Encoded Chemical Library Selection Using Cellular Phenotypes
발행사항  
[Sl] : The Scripps Research Institute, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
189 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
주기사항  
Advisor: Lairson, Luke L.;Deniz, Ashok A.
학위논문주기  
Thesis (Ph.D.)--The Scripps Research Institute, 2025.
초록/해제  
요약DNA-encoded chemical libraries (DELs) are powerful tools to rapidly survey chemical space for biological activity in a cost- and time-efficient manner by harnessing combinatorial chemistry and next-generation DNA sequencing to enable rapid drug discovery. However, as opposed to traditional high throughput screening, current DNA-encoded library selection methods primarily focus on binding-based assays against defined targets in vitro and cannot access the biological relevance and novelty of insight that phenotypic cell-based assays can yield. Combining the power of combinatorial chemistry through the application of DNA-encoded chemical libraries with the depth of complex insight furnished by phenotypic assays would greatly reduce the cost of academic and industrial hit discovery, as well as speed up design-make-test cycles to accelerate the medicinal chemistry lead optimization process.In this thesis I establish a methodology to transfect DNA-encoded small molecules into mammalian cells, and probe cellular function of these DNA-encoded small molecules by assaying for compound-induced gene expression, which identification of active small molecules by sequence analysis of their cognate DNA barcodes.I describe the concept and development of tools and methods and present a covalent labeling and immunoprecipitation strategy to enrich DNA barcodes encoding active compounds from cell-based transfection experiments. Compound-induced gene expression is linked to covalent labeling of DNA barcodes present in an activated cell. This DNA labeling functions as a type of activity recording that can summate both transient and sustained cellular signaling outputs and provides a compound-activity-dependent purification tag that allows recovery and sequencing of DNA barcodes. I also identify an additional tool compound that can be included in a future model DEL and report the establishment of a DNA sequencing protocol spanning library preparation and bioinformatic analysis. I discuss next experimental steps, important limitations of the current approach, and future directions of this methodology, as well as discusses potential application of this work towards the related fields of synthetic biology and biocomputing.
일반주제명  
Biochemistry
일반주제명  
Pharmaceutical sciences
일반주제명  
Cellular biology
일반주제명  
Genetics
키워드  
DNA-encoded chemical libraries
키워드  
DNA sequencing
키워드  
DNA barcodes
키워드  
Biocomputing
키워드  
Mammalian cells
기타저자  
The Scripps Research Institute Chemistry
기본자료저록  
Dissertations Abstracts International. 86-12B.
전자적 위치 및 접속  
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MARC

 008260126s2025        us                              c    eng  d
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■006m          o    d                
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■020    ▼a9798283479699
■035    ▼a(MiAaPQ)AAI31766188
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a574
■1001  ▼aSander,  Philipp  Nikolaus.
■24510▼aBuilding  a  Technology  Platform  for  DNA-Encoded  Chemical  Library  Selection  Using  Cellular  Phenotypes
■260    ▼a[Sl]▼bThe  Scripps  Research  Institute▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a189  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-12,  Section:  B.
■500    ▼aAdvisor:  Lairson,  Luke  L.;Deniz,  Ashok  A.
■5021  ▼aThesis  (Ph.D.)--The  Scripps  Research  Institute,  2025.
■520    ▼aDNA-encoded  chemical  libraries  (DELs)  are  powerful  tools  to  rapidly  survey  chemical  space  for  biological  activity  in  a  cost-  and  time-efficient  manner  by  harnessing  combinatorial  chemistry  and  next-generation  DNA  sequencing  to  enable  rapid  drug  discovery.  However,  as  opposed  to  traditional  high  throughput  screening,  current  DNA-encoded  library  selection  methods  primarily  focus  on  binding-based  assays  against  defined  targets  in  vitro  and  cannot  access  the  biological  relevance  and  novelty  of  insight  that  phenotypic  cell-based  assays  can  yield.  Combining  the  power  of  combinatorial  chemistry  through  the  application  of  DNA-encoded  chemical  libraries  with  the  depth  of  complex  insight  furnished  by  phenotypic  assays  would  greatly  reduce  the  cost  of  academic  and  industrial  hit  discovery,  as  well  as  speed  up  design-make-test  cycles  to  accelerate  the  medicinal  chemistry  lead  optimization  process.In  this  thesis  I  establish  a  methodology  to  transfect  DNA-encoded  small  molecules  into  mammalian  cells,  and  probe  cellular  function  of  these  DNA-encoded  small  molecules  by  assaying  for  compound-induced  gene  expression,  which  identification  of  active  small  molecules  by  sequence  analysis  of  their  cognate  DNA  barcodes.I  describe  the  concept  and  development  of  tools  and  methods  and  present  a  covalent  labeling  and  immunoprecipitation  strategy  to  enrich  DNA  barcodes  encoding  active  compounds  from  cell-based  transfection  experiments.  Compound-induced  gene  expression  is  linked  to  covalent  labeling  of  DNA  barcodes  present  in  an  activated  cell.  This  DNA  labeling  functions  as  a  type  of  activity  recording  that  can  summate  both  transient  and  sustained  cellular  signaling  outputs  and  provides  a  compound-activity-dependent  purification  tag  that  allows  recovery  and  sequencing  of  DNA  barcodes.  I  also  identify  an  additional  tool  compound  that  can  be  included  in  a  future  model  DEL  and  report  the  establishment  of  a  DNA  sequencing  protocol  spanning  library  preparation  and  bioinformatic  analysis.  I  discuss  next  experimental  steps,  important  limitations  of  the  current  approach,  and  future  directions  of  this  methodology,  as  well  as  discusses  potential  application  of  this  work  towards  the  related  fields  of  synthetic  biology  and  biocomputing.
■590    ▼aSchool  code:  1179.
■650  4▼aBiochemistry
■650  4▼aPharmaceutical  sciences
■650  4▼aCellular  biology
■650  4▼aGenetics
■653    ▼aDNA-encoded  chemical  libraries
■653    ▼aDNA  sequencing
■653    ▼aDNA  barcodes
■653    ▼aBiocomputing
■653    ▼aMammalian  cells
■690    ▼a0487
■690    ▼a0572
■690    ▼a0379
■690    ▼a0369
■71020▼aThe  Scripps  Research  Institute▼bChemistry.
■7730  ▼tDissertations  Abstracts  International▼g86-12B.
■790    ▼a1179
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356557▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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