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The Use of Mesenchymal Stem Cells as Delivery Vehicles for Farnesylated Chemically Self-Assembled Nanorings
The Use of Mesenchymal Stem Cells as Delivery Vehicles for Farnesylated Chemically Self-As...
The Use of Mesenchymal Stem Cells as Delivery Vehicles for Farnesylated Chemically Self-Assembled Nanorings

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자료유형  
 학위논문 서양
최종처리일시  
20260202105157
ISBN  
9798297649361
DDC  
615
저자명  
Lichtenfels, Caitlin.
서명/저자  
The Use of Mesenchymal Stem Cells as Delivery Vehicles for Farnesylated Chemically Self-Assembled Nanorings
발행사항  
[Sl] : University of Minnesota, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
232 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
주기사항  
Advisor: Wagner, Carston R.
학위논문주기  
Thesis (Ph.D.)--University of Minnesota, 2025.
초록/해제  
요약Cell-based therapeutics offer several advantages over traditional small molecules or protein-based therapies such as: ability to cross biological barriers, longer therapeutic index, and minimal toxicities. With many chemotherapies being toxic, there has been growing interest in specific drug delivery to the tumor site to mitigate off target side effects. Cell-based drug delivery has emerged as an approach to combat these toxicities and deliver drugs specifically at the tumor. Certain cells, such as stem cells, have demonstrated innate homing properties to the tumor site and thus appending chemotherapies onto cells can enhance specific drug delivery. However, many of these approaches require challenging formulations of nanoparticles, re-engineering of the technology depending on the cell type, or insufficient loading onto cell surfaces. To combat these challenges, we have developed a stable, broadly applicable cell surface modification capable of delivering drugs or other biomolecules. Herein, we demonstrate an efficient cell-based delivery system for the delivery of farnesylated Chemically Self-Assembled Nanorings (f-CSANs). These f-CSANs have the capability to be attached with chemotherapies as demonstrated in prior work. We utilize Mesenchymal Stem Cells (MSCs) due to their allogenic cell sourcing and innate tumor homing properties, as our cell delivery vehicle. We demonstrate MSCs can be modified with f-CSANs with a high loading capacity and that this modification is stable under physiologically relevant shear stresses. The f-CSANs are also shown to transfer from MSCs to target EGFR positive cancer cells, as observed in prior work, in a receptor dependent manner. In preparation for future biodistribution studies, we synthesized a new chemical dimerizer to functionalize the CSANs with a radiolabel or fluorophore. Our in vivo work demonstrates enhanced delivery of f-CSANs when tethered to the MSC cell surface over f-CSANs given alone. Importantly, the f-CSANs were also shown to be internalized by the tumor cells as observed with our in cellulo work. Preliminary data also demonstrates enrichment of MSCs in the tumor when f-CSANs are tethered on the cell surface, compared to MSCs given alone. This approach demonstrates a broadly applicable method for cell-based delivery of f-CSANs that is stable and efficient from in cellulo work to in vivo studies.
일반주제명  
Pharmaceutical sciences
일반주제명  
Chemistry
일반주제명  
Cellular biology
일반주제명  
Biochemistry
키워드  
Biomolecules
키워드  
Cell-based delivery
키워드  
Mesenchymal Stem Cells
키워드  
Allogenic cell
키워드  
Tumor cells
기타저자  
University of Minnesota Medicinal Chemistry
기본자료저록  
Dissertations Abstracts International. 87-04B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aLichtenfels,  Caitlin.
■24510▼aThe  Use  of  Mesenchymal  Stem  Cells  as  Delivery  Vehicles  for  Farnesylated  Chemically  Self-Assembled  Nanorings
■260    ▼a[Sl]▼bUniversity  of  Minnesota▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a232  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-04,  Section:  B.
■500    ▼aAdvisor:  Wagner,  Carston  R.
■5021  ▼aThesis  (Ph.D.)--University  of  Minnesota,  2025.
■520    ▼aCell-based  therapeutics  offer  several  advantages  over  traditional  small  molecules  or  protein-based  therapies  such  as:  ability  to  cross  biological  barriers,  longer  therapeutic  index,  and  minimal  toxicities.  With  many  chemotherapies  being  toxic,  there  has  been  growing  interest  in  specific  drug  delivery  to  the  tumor  site  to  mitigate  off  target  side  effects.  Cell-based  drug  delivery  has  emerged  as  an  approach  to  combat  these  toxicities  and  deliver  drugs  specifically  at  the  tumor.  Certain  cells,  such  as  stem  cells,  have  demonstrated  innate  homing  properties  to  the  tumor  site  and  thus  appending  chemotherapies  onto  cells  can  enhance  specific  drug  delivery.  However,  many  of  these  approaches  require  challenging  formulations  of  nanoparticles,  re-engineering  of  the  technology  depending  on  the  cell  type,  or  insufficient  loading  onto  cell  surfaces.  To  combat  these  challenges,  we  have  developed  a  stable,  broadly  applicable  cell  surface  modification  capable  of  delivering  drugs  or  other  biomolecules.  Herein,  we  demonstrate  an  efficient  cell-based  delivery  system  for  the  delivery  of  farnesylated  Chemically  Self-Assembled  Nanorings  (f-CSANs).  These  f-CSANs  have  the  capability  to  be  attached  with  chemotherapies  as  demonstrated  in  prior  work.  We  utilize  Mesenchymal  Stem  Cells  (MSCs)  due  to  their  allogenic  cell  sourcing  and  innate  tumor  homing  properties,  as  our  cell  delivery  vehicle.  We  demonstrate  MSCs  can  be  modified  with  f-CSANs  with  a  high  loading  capacity  and  that  this  modification  is  stable  under  physiologically  relevant  shear  stresses.  The  f-CSANs  are  also  shown  to  transfer  from  MSCs  to  target  EGFR  positive  cancer  cells,  as  observed  in  prior  work,  in  a  receptor  dependent  manner.  In  preparation  for  future  biodistribution  studies,  we  synthesized  a  new  chemical  dimerizer  to  functionalize  the  CSANs  with  a  radiolabel  or  fluorophore.  Our  in  vivo  work  demonstrates  enhanced  delivery  of  f-CSANs  when  tethered  to  the  MSC  cell  surface  over  f-CSANs  given  alone.  Importantly,  the  f-CSANs  were  also  shown  to  be  internalized  by  the  tumor  cells  as  observed  with  our  in  cellulo  work.  Preliminary  data  also  demonstrates  enrichment  of  MSCs  in  the  tumor  when  f-CSANs  are  tethered  on  the  cell  surface,  compared  to  MSCs  given  alone.  This  approach  demonstrates  a  broadly  applicable  method  for  cell-based  delivery  of  f-CSANs  that  is  stable  and  efficient  from  in  cellulo  work  to  in  vivo  studies.
■590    ▼aSchool  code:  0130.
■650  4▼aPharmaceutical  sciences
■650  4▼aChemistry
■650  4▼aCellular  biology
■650  4▼aBiochemistry
■653    ▼aBiomolecules
■653    ▼aCell-based  delivery
■653    ▼aMesenchymal  Stem  Cells
■653    ▼aAllogenic  cell  
■653    ▼aTumor  cells
■690    ▼a0572
■690    ▼a0485
■690    ▼a0379
■690    ▼a0487
■71020▼aUniversity  of  Minnesota▼bMedicinal  Chemistry.
■7730  ▼tDissertations  Abstracts  International▼g87-04B.
■790    ▼a0130
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359675▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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