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Engineering an Injectable Hydrogel for Sustained Vaccine Delivery to Improve Humoral Immune Responses
Engineering an Injectable Hydrogel for Sustained Vaccine Delivery to Improve Humoral Immune Responses
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153051
- ISBN
- 9798346389729
- DDC
- 600
- 서명/저자
- Engineering an Injectable Hydrogel for Sustained Vaccine Delivery to Improve Humoral Immune Responses
- 발행사항
- [Sl] : Stanford University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 214 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-05, Section: A.
- 주기사항
- Advisor: Appel, Eric.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2024.
- 초록/해제
- 요약As pharmaceutical makers increasingly look to control the release kinetics of their products, physically crosslinked hydrogels are emerging as a promising drug carrier due to their injectability and depot-forming abilities. In this thesis, we examine the physical properties of Polymer-Nanoparticle (PNP) hydrogels, materials that are shear-thinning, rapidly self-assembling, and biocompatible, and which have been shown to be effective in many therapeutic and prophylactic applications. Herein, we investigate the microscale structure of the PNP hydrogel, its mechanical properties, and the diffusivity of components within its network. Informed by these findings, we have engineered the PNP platform to deliver physicochemically distinct cargos of adjuvanted influenza vaccines, resulting in greatly improved humoral responses. Our tuning of PNP hydrogel formulation and physical properties has allowed us to utilize the benefits of extended release to add potency and breadth to our current vaccination technologies with an easily injectable platform.We first describe the use of sustained delivery technologies to improve immune responses. We detail how modulating the immune system via strategies such as vaccines and cancer treatments has allowed humankind to fight against infection and disease but show the great need for improvements to address diseases outside the reach of our current technology. We describe how exposing the immune system to immunomodulatory signals for weeks rather than hours can provoke stronger and more effective cellular responses and depict the biomaterial technologies that have been v developed over recent years to leverage this finding. Subsequently, we probe the physical properties of the PNP hydrogel and investigate how its structure enables the retention and sustained release of physicochemically distinct cargos.We next show the ability of the PNP hydrogel to enhance humoral immune response to subunit single-antigen influenza vaccines. We use our drug delivery platform to administer influenza hemagglutinin protein antigens alongside an immune stimulatory small molecule adjuvant and find a marked improvement in antibody titer over liquidadministered controls. We further display the importance of co-delivery of antigen and adjuvant in the improvement of the nanoparticle-tethered small molecule adjuvant over its soluble counterpart. We then investigate the effect of hydrogel formulation and mechanical properties on vaccine efficacy. While we find that all PNP formulations perform significantly better than a standard liquid control, we also see that the stronger, less diffusive formulations outperform our weakest and most quickly dissipating hydrogel, signifying that prolonged exposure time of vaccine components to the immune system has further benefits as time increases, within a demonstrable threshold.In the final chapter of this thesis, we expand the use of the PNP hydrogel to advance multivalent influenza vaccines, improving on current clinical flu vaccine formulations which incorporate three or four distinct strains. We note that the current efficacy of our annual multivalent influenza vaccines is often very low, leaving populations unprotected against some of the strains included in the vaccine as well as future strains of the rapidly mutating virus. Administration of both trivalent subunit and quadrivalent clinical subunit Fluzone vaccines in the adjuvanted PNP hydrogel results in complete seroconversion against all included strains as well as increased protection against heterologous, never-before-encountered influenza viruses.
- 일반주제명
- Infections
- 일반주제명
- Polymers
- 일반주제명
- Cells
- 일반주제명
- Pathogens
- 일반주제명
- Immunity (Disease)
- 일반주제명
- Antibodies
- 일반주제명
- Immunotherapy
- 일반주제명
- Adjuvants
- 일반주제명
- Rheology
- 일반주제명
- Nanoparticles
- 일반주제명
- Cytotoxicity
- 일반주제명
- Lymphatic system
- 일반주제명
- Immune system
- 일반주제명
- Lymphocytes
- 일반주제명
- Influenza
- 일반주제명
- Aluminum
- 일반주제명
- Smallpox
- 일반주제명
- Biomedical materials
- 일반주제명
- Antigens
- 일반주제명
- Hydrogels
- 일반주제명
- Cancer vaccines
- 일반주제명
- Biomedical engineering
- 일반주제명
- Cellular biology
- 일반주제명
- Immunology
- 일반주제명
- Materials science
- 일반주제명
- Morphology
- 일반주제명
- Nanotechnology
- 일반주제명
- Polymer chemistry
- 일반주제명
- Therapy
- 일반주제명
- Physics
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 86-05A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798346389729
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■040 ▼aMiAaPQ▼cMiAaPQ
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■1001 ▼aSaouaf, Olivia Michelle.
■24510▼aEngineering an Injectable Hydrogel for Sustained Vaccine Delivery to Improve Humoral Immune Responses
■260 ▼a[Sl]▼bStanford University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a214 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-05, Section: A.
■500 ▼aAdvisor: Appel, Eric.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aAs pharmaceutical makers increasingly look to control the release kinetics of their products, physically crosslinked hydrogels are emerging as a promising drug carrier due to their injectability and depot-forming abilities. In this thesis, we examine the physical properties of Polymer-Nanoparticle (PNP) hydrogels, materials that are shear-thinning, rapidly self-assembling, and biocompatible, and which have been shown to be effective in many therapeutic and prophylactic applications. Herein, we investigate the microscale structure of the PNP hydrogel, its mechanical properties, and the diffusivity of components within its network. Informed by these findings, we have engineered the PNP platform to deliver physicochemically distinct cargos of adjuvanted influenza vaccines, resulting in greatly improved humoral responses. Our tuning of PNP hydrogel formulation and physical properties has allowed us to utilize the benefits of extended release to add potency and breadth to our current vaccination technologies with an easily injectable platform.We first describe the use of sustained delivery technologies to improve immune responses. We detail how modulating the immune system via strategies such as vaccines and cancer treatments has allowed humankind to fight against infection and disease but show the great need for improvements to address diseases outside the reach of our current technology. We describe how exposing the immune system to immunomodulatory signals for weeks rather than hours can provoke stronger and more effective cellular responses and depict the biomaterial technologies that have been v developed over recent years to leverage this finding. Subsequently, we probe the physical properties of the PNP hydrogel and investigate how its structure enables the retention and sustained release of physicochemically distinct cargos.We next show the ability of the PNP hydrogel to enhance humoral immune response to subunit single-antigen influenza vaccines. We use our drug delivery platform to administer influenza hemagglutinin protein antigens alongside an immune stimulatory small molecule adjuvant and find a marked improvement in antibody titer over liquidadministered controls. We further display the importance of co-delivery of antigen and adjuvant in the improvement of the nanoparticle-tethered small molecule adjuvant over its soluble counterpart. We then investigate the effect of hydrogel formulation and mechanical properties on vaccine efficacy. While we find that all PNP formulations perform significantly better than a standard liquid control, we also see that the stronger, less diffusive formulations outperform our weakest and most quickly dissipating hydrogel, signifying that prolonged exposure time of vaccine components to the immune system has further benefits as time increases, within a demonstrable threshold.In the final chapter of this thesis, we expand the use of the PNP hydrogel to advance multivalent influenza vaccines, improving on current clinical flu vaccine formulations which incorporate three or four distinct strains. We note that the current efficacy of our annual multivalent influenza vaccines is often very low, leaving populations unprotected against some of the strains included in the vaccine as well as future strains of the rapidly mutating virus. Administration of both trivalent subunit and quadrivalent clinical subunit Fluzone vaccines in the adjuvanted PNP hydrogel results in complete seroconversion against all included strains as well as increased protection against heterologous, never-before-encountered influenza viruses.
■590 ▼aSchool code: 0212.
■650 4▼aInfections
■650 4▼aPolymers
■650 4▼aCells
■650 4▼aPathogens
■650 4▼aHuman immunodeficiency virus--HIV
■650 4▼aImmunity (Disease)
■650 4▼aAntibodies
■650 4▼aImmunotherapy
■650 4▼aAdjuvants
■650 4▼aRheology
■650 4▼aNanoparticles
■650 4▼aCytotoxicity
■650 4▼aLymphatic system
■650 4▼aImmune system
■650 4▼aLymphocytes
■650 4▼aInfluenza
■650 4▼aAluminum
■650 4▼aSmallpox
■650 4▼aBiomedical materials
■650 4▼aAntigens
■650 4▼aHydrogels
■650 4▼aCancer vaccines
■650 4▼aBiomedical engineering
■650 4▼aCellular biology
■650 4▼aImmunology
■650 4▼aMaterials science
■650 4▼aMorphology
■650 4▼aNanotechnology
■650 4▼aPolymer chemistry
■650 4▼aTherapy
■650 4▼aPhysics
■690 ▼a0541
■690 ▼a0379
■690 ▼a0982
■690 ▼a0794
■690 ▼a0287
■690 ▼a0652
■690 ▼a0495
■690 ▼a0212
■690 ▼a0605
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g86-05A.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164818▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


