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Development of Biomimetic Drug Delivery Vehicles to Surpass Limitations of Traditional Nanoparticles
Development of Biomimetic Drug Delivery Vehicles to Surpass Limitations of Traditional Nan...
Development of Biomimetic Drug Delivery Vehicles to Surpass Limitations of Traditional Nanoparticles

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105152
ISBN  
9798265485656
DDC  
547
저자명  
Burton, Spencer Tyler.
서명/저자  
Development of Biomimetic Drug Delivery Vehicles to Surpass Limitations of Traditional Nanoparticles
발행사항  
[Sl] : Northwestern University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
318 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-06, Section: B.
주기사항  
Advisor: Gianneschi, Nathan C.
학위논문주기  
Thesis (Ph.D.)--Northwestern University, 2025.
초록/해제  
요약Nanoparticles (NPs) hold great potential as minimally invasive drug delivery vehicles, overcoming problems endemic to small molecule therapeutics, such as poor solubility, rapid clearance, lack of targeted distribution, and the emergence of drug resistance. However, clinical applications remain limited due to issues with biodistribution, size control, scalability, and regulatory concerns. In response, researchers have increasingly explored natural, protein-based materials, which inherently possess desirable traits (e.g., biocompatibility, optimal size, and solubility) that synthetic systems often struggle to replicate. These bio-inspired materials offer a scalable, promising pathway toward the development of clinically translatable drug delivery vehicles. This dissertation is organized into three sections, each examining a different bio-inspired therapeutic delivery approach.The first section evaluates human serum albumin (HSA) as a biomimetic nanocarrier for lipid-modified chemotherapeutic prodrugs. Specifically, a paclitaxel prodrug (ODDA-PTX), which mimics long-chain fatty acids (LCFAs), was formulated with HSA to enhance drug stability, circulation, and tumor targeting. Mechanistic studies identified fatty acid translocase (FAT/CD36), a well-known LCFA receptor and cancer biomarker, as a mediator of ODDA-PTX uptake. Inhibition of CD36 in HT1080 and MCF7 cells significantly reduced ODDA-PTX cytotoxicity, supporting a receptor-dependent mechanism of uptake. Additionally, other LCFA-conjugated prodrugs and fluorescent probes were synthesized, demonstrating the broader potential of this platform for targeted cancer therapy and imaging. The second section describes early efforts to develop protein-like polymers (PLPs), dense peptide brush polymers that stabilize peptide side chains by mimicking the compact, protective structure of globular proteins. This chapter discusses the challenges of synthesizing PLPs and the limitations of conventional characterization techniques. Alternative compatible analytical strategies are proposed. Lastly, the influence of hydrophilic/hydrophobic balance on the morphology of single-chain nanoparticles (SCNPs) is discussed, suggesting how these principles could be applied to the design of PLPs for therapeutic applications.In the final section, PLPs are applied as a minimally invasive therapy for acute myocardial infarction (MI), where inflammation and matrix degradation can worsen tissue injury. A dual responsive-therapeutic block copolymer was developed, leveraging enzyme-responsive peptides for targeted delivery to inflamed cardiac tissue, while utilizing the PLP architecture to protect and deliver a therapeutic peptide that modulates inflammatory enzymes. In vivo studies in a murine MI model demonstrated selective PLP accumulation at the injury site with minimal off-target distribution, suppressed MI-related gene expression, and modulation of extracellular matrix remodeling. These findings support the potential of PLPs as targeted, early-intervention therapies for cardiovascular disease.Overall, this work highlights the potential of bioinspired drug delivery systems to overcome key limitations of conventional therapeutics. By combining structural biomimicry with precision targeting, these platforms offer promising strategies for treating cancer and cardiovascular diseases, with the potential for clinical translation.
일반주제명  
Organic chemistry
일반주제명  
Polymer chemistry
일반주제명  
Biochemistry
일반주제명  
Nanotechnology
일반주제명  
Pharmaceutical sciences
키워드  
Drug delivery
키워드  
Human serum albumin
키워드  
Myocardial infarction
키워드  
Nanomedicine
키워드  
Protein-like polymers
키워드  
Stimuli-responsive polymers
기타저자  
Northwestern University Chemistry
기본자료저록  
Dissertations Abstracts International. 87-06B.
전자적 위치 및 접속  
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MARC

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■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a547
■1001  ▼aBurton,  Spencer  Tyler.
■24510▼aDevelopment  of  Biomimetic  Drug  Delivery  Vehicles  to  Surpass  Limitations  of  Traditional  Nanoparticles
■260    ▼a[Sl]▼bNorthwestern  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a318  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-06,  Section:  B.
■500    ▼aAdvisor:  Gianneschi,  Nathan  C.
■5021  ▼aThesis  (Ph.D.)--Northwestern  University,  2025.
■520    ▼aNanoparticles  (NPs)  hold  great  potential  as  minimally  invasive  drug  delivery  vehicles,  overcoming  problems  endemic  to  small  molecule  therapeutics,  such  as  poor  solubility,  rapid  clearance,  lack  of  targeted  distribution,  and  the  emergence  of  drug  resistance.  However,  clinical  applications  remain  limited  due  to  issues  with  biodistribution,  size  control,  scalability,  and  regulatory  concerns.  In  response,  researchers  have  increasingly  explored  natural,  protein-based  materials,  which  inherently  possess  desirable  traits  (e.g.,  biocompatibility,  optimal  size,  and  solubility)  that  synthetic  systems  often  struggle  to  replicate.  These  bio-inspired  materials  offer  a  scalable,  promising  pathway  toward  the  development  of  clinically  translatable  drug  delivery  vehicles.  This  dissertation  is  organized  into  three  sections,  each  examining  a  different  bio-inspired  therapeutic  delivery  approach.The  first  section  evaluates  human  serum  albumin  (HSA)  as  a  biomimetic  nanocarrier  for  lipid-modified  chemotherapeutic  prodrugs.  Specifically,  a  paclitaxel  prodrug  (ODDA-PTX),  which  mimics  long-chain  fatty  acids  (LCFAs),  was  formulated  with  HSA  to  enhance  drug  stability,  circulation,  and  tumor  targeting.  Mechanistic  studies  identified  fatty  acid  translocase  (FAT/CD36),  a  well-known  LCFA  receptor  and  cancer  biomarker,  as  a  mediator  of  ODDA-PTX  uptake.  Inhibition  of  CD36  in  HT1080  and  MCF7  cells  significantly  reduced  ODDA-PTX  cytotoxicity,  supporting  a  receptor-dependent  mechanism  of  uptake.  Additionally,  other  LCFA-conjugated  prodrugs  and  fluorescent  probes  were  synthesized,  demonstrating  the  broader  potential  of  this  platform  for  targeted  cancer  therapy  and  imaging.  The  second  section  describes  early  efforts  to  develop  protein-like  polymers  (PLPs),  dense  peptide  brush  polymers  that  stabilize  peptide  side  chains  by  mimicking  the  compact,  protective  structure  of  globular  proteins.  This  chapter  discusses  the  challenges  of  synthesizing  PLPs  and  the  limitations  of  conventional  characterization  techniques.  Alternative  compatible  analytical  strategies  are  proposed.  Lastly,  the  influence  of  hydrophilic/hydrophobic  balance  on  the  morphology  of  single-chain  nanoparticles  (SCNPs)  is  discussed,  suggesting  how  these  principles  could  be  applied  to  the  design  of  PLPs  for  therapeutic  applications.In  the  final  section,  PLPs  are  applied  as  a  minimally  invasive  therapy  for  acute  myocardial  infarction  (MI),  where  inflammation  and  matrix  degradation  can  worsen  tissue  injury.  A  dual  responsive-therapeutic  block  copolymer  was  developed,  leveraging  enzyme-responsive  peptides  for  targeted  delivery  to  inflamed  cardiac  tissue,  while  utilizing  the  PLP  architecture  to  protect  and  deliver  a  therapeutic  peptide  that  modulates  inflammatory  enzymes.  In  vivo  studies  in  a  murine  MI  model  demonstrated  selective  PLP  accumulation  at  the  injury  site  with  minimal  off-target  distribution,  suppressed  MI-related  gene  expression,  and  modulation  of  extracellular  matrix  remodeling.  These  findings  support  the  potential  of  PLPs  as  targeted,  early-intervention  therapies  for  cardiovascular  disease.Overall,  this  work  highlights  the  potential  of  bioinspired  drug  delivery  systems  to  overcome  key  limitations  of  conventional  therapeutics.  By  combining  structural  biomimicry  with  precision  targeting,  these  platforms  offer  promising  strategies  for  treating  cancer  and  cardiovascular  diseases,  with  the  potential  for  clinical  translation.
■590    ▼aSchool  code:  0163.
■650  4▼aOrganic  chemistry
■650  4▼aPolymer  chemistry
■650  4▼aBiochemistry
■650  4▼aNanotechnology
■650  4▼aPharmaceutical  sciences
■653    ▼aDrug  delivery
■653    ▼aHuman  serum  albumin
■653    ▼aMyocardial  infarction
■653    ▼aNanomedicine
■653    ▼aProtein-like  polymers
■653    ▼aStimuli-responsive  polymers
■690    ▼a0490
■690    ▼a0495
■690    ▼a0487
■690    ▼a0652
■690    ▼a0572
■71020▼aNorthwestern  University▼bChemistry.
■7730  ▼tDissertations  Abstracts  International▼g87-06B.
■790    ▼a0163
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359650▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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