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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 Nanoparticles
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105152
- ISBN
- 9798265485656
- DDC
- 547
- 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
- Nanomedicine
- 기타저자
- Northwestern University Chemistry
- 기본자료저록
- Dissertations Abstracts International. 87-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105152
■006m o d
■007cr#unu||||||||
■020 ▼a9798265485656
■035 ▼a(MiAaPQ)AAI32242525
■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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