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Development of Protein-Based Therapeutics and Vaccines
Development of Protein-Based Therapeutics and Vaccines
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105554
- ISBN
- 9798265401380
- DDC
- 600
- 서명/저자
- Development of Protein-Based Therapeutics and Vaccines
- 발행사항
- [Sl] : Georgia Institute of Technology, 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 165 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Kane, Ravi.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2023.
- 초록/해제
- 요약Engineered proteins play an important role in the development of therapeutics and subunit vaccines. The objective of this thesis is to design and develop protein-based vaccines and therapeutics using techniques such as site-specific modification, click chemistry, bioconjugation, and the multivalent display of antigens on virus-like particles (VLPs). In Chapter 2, we developed a VLP-based vaccine for malaria by presenting multiple copies of a chimeric circumsporozoite protein (CSP) antigen on SpyCatcher-mi3 nanoparticles. CSP is a surface protein expressed during the sporozoite stage in the life cycle of Plasmodium falciparum (Pf) malaria that causes considerable mortality worldwide. The chimeric PfCSP (c PfCSP) antigen incorporates the important "T1/junctional" epitope that is the target of potent neutralizing antibodies. Our vaccine candidate demonstrated high and durable IgG antibody levels and a balanced antibody response against the T1/junctional region as well as the (NANP)n repeats in mice. Moreover, the antibody concentration elicited by immunization was significantly greater than the reported protective threshold defined in a murine challenge model. In Chapter 3, we designed Staphylococcus aureus vaccines with cross-reactivity against multiple toxins that S. aureus generates to evade the host immune system. Three cytotoxin components (LukD, LukF, HlgB) share ~80% amino acid sequence identity. Though αHemolysin (Hla) cytotoxin is largely different from LukD, LukF and HlgB (~25% shared amino acid sequence identity), they contain a common conformational epitope that binds to neutralizing antibodies. Leveraging this similarity, we displayed multiple copies of LukD or Hla on SpyCatcher-mi3 nanoparticles and compared the breadth of the antibody response elicited by different vaccination schemes. In Chapter 4, we presented a strategy to incorporate non-canonical amino acids into lysostaphin, an enzyme targeting the cell wall of Staphylococcus aureus, while retaining its stapholytic activity. We used this approach to successfully generate active variants of lysostaphin that incorporate paraazidophenylalanine. Addition of this "reactive handle" facilitated the orthogonal sitespecific modification of lysostaphin variants with polyethylene glycol (PEG) using copper-free click cycloaddition. Our results showed that PEGylated lysostaphin variants could retain their stapholytic activity. However, the extent of retention depended on the location of the modification site and the molecular weight of PEG. In Chapter 5, we designed VLP-based coronavirus vaccines. Multiple copies of the Receptor binding domain (RBD), Spike (S) protein and S2 domain of SARS-CoV-2 were conjugated to SpyCatcher-mi3, and mice were immunized with the constructs intranasally. Systemic immune response was characterized, and the mice were challenged against SARS-CoV-2 to evaluate protection.
- 일반주제명
- Pathogens
- 일반주제명
- mRNA vaccines
- 일반주제명
- Mutation
- 일반주제명
- Bacteria
- 일반주제명
- Amino acids
- 일반주제명
- Genomes
- 일반주제명
- Chromatography
- 일반주제명
- Human papillomavirus
- 일반주제명
- COVID-19
- 일반주제명
- Malaria
- 일반주제명
- Sodium
- 일반주제명
- Antibiotics
- 일반주제명
- Cloning
- 일반주제명
- Immune system
- 일반주제명
- Genetic engineering
- 일반주제명
- Design
- 일반주제명
- Antigens
- 일반주제명
- Vectors (Biology)
- 일반주제명
- Toxins
- 일반주제명
- Genetics
- 일반주제명
- Immunology
- 일반주제명
- Parasitology
- 일반주제명
- Pathology
- 일반주제명
- Pharmaceutical sciences
- 일반주제명
- Virology
- 일반주제명
- Biology
- 일반주제명
- Engineering
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■1001 ▼aPendyala, Geetanjali.
■24510▼aDevelopment of Protein-Based Therapeutics and Vaccines
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a165 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Kane, Ravi.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2023.
■520 ▼aEngineered proteins play an important role in the development of therapeutics and subunit vaccines. The objective of this thesis is to design and develop protein-based vaccines and therapeutics using techniques such as site-specific modification, click chemistry, bioconjugation, and the multivalent display of antigens on virus-like particles (VLPs). In Chapter 2, we developed a VLP-based vaccine for malaria by presenting multiple copies of a chimeric circumsporozoite protein (CSP) antigen on SpyCatcher-mi3 nanoparticles. CSP is a surface protein expressed during the sporozoite stage in the life cycle of Plasmodium falciparum (Pf) malaria that causes considerable mortality worldwide. The chimeric PfCSP (c PfCSP) antigen incorporates the important "T1/junctional" epitope that is the target of potent neutralizing antibodies. Our vaccine candidate demonstrated high and durable IgG antibody levels and a balanced antibody response against the T1/junctional region as well as the (NANP)n repeats in mice. Moreover, the antibody concentration elicited by immunization was significantly greater than the reported protective threshold defined in a murine challenge model. In Chapter 3, we designed Staphylococcus aureus vaccines with cross-reactivity against multiple toxins that S. aureus generates to evade the host immune system. Three cytotoxin components (LukD, LukF, HlgB) share ~80% amino acid sequence identity. Though αHemolysin (Hla) cytotoxin is largely different from LukD, LukF and HlgB (~25% shared amino acid sequence identity), they contain a common conformational epitope that binds to neutralizing antibodies. Leveraging this similarity, we displayed multiple copies of LukD or Hla on SpyCatcher-mi3 nanoparticles and compared the breadth of the antibody response elicited by different vaccination schemes. In Chapter 4, we presented a strategy to incorporate non-canonical amino acids into lysostaphin, an enzyme targeting the cell wall of Staphylococcus aureus, while retaining its stapholytic activity. We used this approach to successfully generate active variants of lysostaphin that incorporate paraazidophenylalanine. Addition of this "reactive handle" facilitated the orthogonal sitespecific modification of lysostaphin variants with polyethylene glycol (PEG) using copper-free click cycloaddition. Our results showed that PEGylated lysostaphin variants could retain their stapholytic activity. However, the extent of retention depended on the location of the modification site and the molecular weight of PEG. In Chapter 5, we designed VLP-based coronavirus vaccines. Multiple copies of the Receptor binding domain (RBD), Spike (S) protein and S2 domain of SARS-CoV-2 were conjugated to SpyCatcher-mi3, and mice were immunized with the constructs intranasally. Systemic immune response was characterized, and the mice were challenged against SARS-CoV-2 to evaluate protection.
■590 ▼aSchool code: 0078.
■650 4▼aPathogens
■650 4▼amRNA vaccines
■650 4▼aMutation
■650 4▼aBacteria
■650 4▼aStaphylococcus infections
■650 4▼aAmino acids
■650 4▼aGenomes
■650 4▼aChromatography
■650 4▼aHuman papillomavirus
■650 4▼aCOVID-19
■650 4▼aMalaria
■650 4▼aSodium
■650 4▼aAntibiotics
■650 4▼aCloning
■650 4▼aImmune system
■650 4▼aGenetic engineering
■650 4▼aDesign
■650 4▼aAntigens
■650 4▼aVectors (Biology)
■650 4▼aToxins
■650 4▼aGenetics
■650 4▼aImmunology
■650 4▼aParasitology
■650 4▼aPathology
■650 4▼aPharmaceutical sciences
■650 4▼aVirology
■650 4▼aBiology
■650 4▼aEngineering
■690 ▼a0389
■690 ▼a0369
■690 ▼a0982
■690 ▼a0718
■690 ▼a0571
■690 ▼a0572
■690 ▼a0720
■690 ▼a0306
■690 ▼a0537
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360601▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


