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Investigating Regulatory Mechanisms of T Cell Effector Function
Investigating Regulatory Mechanisms of T Cell Effector Function
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104738
- ISBN
- 9798290651644
- DDC
- 572.57
- 서명/저자
- Investigating Regulatory Mechanisms of T Cell Effector Function
- 발행사항
- [Sl] : Stanford University, 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 140 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Mackall, Crystal.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2023.
- 초록/해제
- 요약T cells play an important role in recognizing and eliminating malignant cells, as well as providing protection from infectious pathogens. Multiple therapeutic modalities including vaccination, immune checkpoint blockade, and adoptive T cell therapy depend on robust T cell responses. Tumor microenvironments are often characterized by local immunosuppression and decreased T cell effector function. Consequently, increasing T cell effector activity in tumors is a common objective for the development of cancer therapeutics. Conversely, autoimmune disease progression is mediated by an imbalanced effector and regulatory immune response, prompting development of therapeutics to diminish T cell effector activity. Therefore, regulatory mechanisms that control differentiation and function of T cells are relevant for applications in medicine.In this dissertation, I will describe our work to identify regulators of T cell effector function. This question is first addressed in the context of cancer using a model system that mimics chronic antigen exposure to induce T cell dysfunction. Using genome-wide CRISPR screening, we identify the Meditator kinase module as a novel regulator of T cell function. We demonstrate this finding can be leveraged through genetic engineering and pharmacological approaches to augment T cell anti-tumor activity. This study further implicates interactions between the kinase module and core Mediator as a major axis of regulation of T cell differentiation. Technologies to inactivate genes are increasingly available for emerging applications in human medicine highlighting the potential for clinical translation of these findings.In the final chapter of this dissertation, I investigate the expression of immunomodulatory receptors in T cells isolated from patients with autoimmune disease. We identify receptors that are differentially expressed between effector and regulatory T cell subsets, providing a basis for selectively targeting effector T cells while preserving the function of regulatory T cells. Collectively, these studies explore multiple mechanisms to enhance or diminish T cell effector responses, providing new avenues for development of T cell directed therapeutics.
- 일반주제명
- Adenosine
- 일반주제명
- Cancer
- 일반주제명
- Infections
- 일반주제명
- Pathogens
- 일반주제명
- Cytotoxicity
- 일반주제명
- Binding sites
- 일반주제명
- Cytokines
- 일반주제명
- Biology
- 일반주제명
- Epigenetics
- 일반주제명
- Metabolism
- 일반주제명
- Apoptosis
- 일반주제명
- T cell receptors
- 일반주제명
- CRISPR
- 일반주제명
- Autoimmune diseases
- 일반주제명
- Genetic engineering
- 일반주제명
- Lymphocytes
- 일반주제명
- Antigens
- 일반주제명
- Phosphorylation
- 일반주제명
- Viral infections
- 일반주제명
- Tumors
- 일반주제명
- Metabolites
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798290651644
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■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a572.57
■1001 ▼aFreitas, Katherine Ann.
■24510▼aInvestigating Regulatory Mechanisms of T Cell Effector Function
■260 ▼a[Sl]▼bStanford University▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a140 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Mackall, Crystal.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2023.
■520 ▼aT cells play an important role in recognizing and eliminating malignant cells, as well as providing protection from infectious pathogens. Multiple therapeutic modalities including vaccination, immune checkpoint blockade, and adoptive T cell therapy depend on robust T cell responses. Tumor microenvironments are often characterized by local immunosuppression and decreased T cell effector function. Consequently, increasing T cell effector activity in tumors is a common objective for the development of cancer therapeutics. Conversely, autoimmune disease progression is mediated by an imbalanced effector and regulatory immune response, prompting development of therapeutics to diminish T cell effector activity. Therefore, regulatory mechanisms that control differentiation and function of T cells are relevant for applications in medicine.In this dissertation, I will describe our work to identify regulators of T cell effector function. This question is first addressed in the context of cancer using a model system that mimics chronic antigen exposure to induce T cell dysfunction. Using genome-wide CRISPR screening, we identify the Meditator kinase module as a novel regulator of T cell function. We demonstrate this finding can be leveraged through genetic engineering and pharmacological approaches to augment T cell anti-tumor activity. This study further implicates interactions between the kinase module and core Mediator as a major axis of regulation of T cell differentiation. Technologies to inactivate genes are increasingly available for emerging applications in human medicine highlighting the potential for clinical translation of these findings.In the final chapter of this dissertation, I investigate the expression of immunomodulatory receptors in T cells isolated from patients with autoimmune disease. We identify receptors that are differentially expressed between effector and regulatory T cell subsets, providing a basis for selectively targeting effector T cells while preserving the function of regulatory T cells. Collectively, these studies explore multiple mechanisms to enhance or diminish T cell effector responses, providing new avenues for development of T cell directed therapeutics.
■590 ▼aSchool code: 0212.
■650 4▼aAdenosine
■650 4▼aCancer
■650 4▼aInfections
■650 4▼aPathogens
■650 4▼aCytotoxicity
■650 4▼aBinding sites
■650 4▼aCytokines
■650 4▼aBiology
■650 4▼aEpigenetics
■650 4▼aMetabolism
■650 4▼aApoptosis
■650 4▼aT cell receptors
■650 4▼aCRISPR
■650 4▼aAutoimmune diseases
■650 4▼aGenetic engineering
■650 4▼aLymphocytes
■650 4▼aAntigens
■650 4▼aPhosphorylation
■650 4▼aViral infections
■650 4▼aTumors
■650 4▼aMetabolites
■690 ▼a0306
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358694▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


