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Novel Mouse Genetic Tools to Characterize Molecular and Cellular Pathologies Associated With Alzheimer's Disease
Novel Mouse Genetic Tools to Characterize Molecular and Cellular Pathologies Associated With Alzheimer's Disease
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105641
- ISBN
- 9798270219901
- DDC
- 615
- 서명/저자
- Novel Mouse Genetic Tools to Characterize Molecular and Cellular Pathologies Associated With Alzheimers Disease
- 발행사항
- [Sl] : University of California, Los Angeles, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 160 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-06, Section: B.
- 주기사항
- Advisor: Yang, Xiangdong William;Kornblum, Harley I.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Los Angeles, 2025.
- 초록/해제
- 요약Alzheimer's disease (AD) is a major global health challenge, with limited therapeutic options currently available. As a multifactorial disorder, AD is characterized by pathology involving multiple molecular and cellular pathways. Advancing our understanding of AD pathogenesis and identifying effective disease-modifying therapies requires continuous innovation to improve research models. A critical step toward this goal is the development of novel experimental models that address existing gaps in the field. In this dissertation, I characterize two novel mouse genetic tools designed to advance AD research. The first is a novel Bacterial Artificial Chromosome (BAC) transgenic model targeting the understudied AD risk gene MS4A4E, localized within the GWAS-identified MS4A gene cluster. Using immunohistochemistry and bulk RNA sequencing, I discovered sex-specific effects on AD-like pathology in the 5xFAD mouse background. Notably, 7-month-old male BAC-MS4A/5xFAD mice had exacerbation of both amyloid pathology and upregulated DAM-like genes, especially enriched in microglial pathways. This BAC transgenic model provides a valuable platform for investigating the role of MS4A4E in AD pathogenesis and its influence on microglial function.The second model presented is the application of the Mononucleotide Repeat Frameshift (MORF) 3 model, which was previously developed in our lab to visualize the detailed morphology of genetically-defined cell populations. Applying this cutting edge mouse genetic tool to AD research, I demonstrated that axonal pathology, specifically axonal spheroids, can be visualized and quantified in layer 5 pyramidal neurons in an amyloid AD mouse model. Preliminary findings suggest that axonal spheroid density increases with age and differs between brain regions. This genetic tool provides a method to characterize axonal pathology as a potential indicator of disease burden.Together, these genetic tools expand the repertoire of experimental models available for studying Alzheimer's disease. Here, I demonstrate how these models can provide new insights into the mechanisms underlying disease progression and facilitate more precise characterization of pathological features.
- 일반주제명
- Pharmacology
- 일반주제명
- Neurosciences
- 일반주제명
- Genetics
- 일반주제명
- Pathology
- 키워드
- Mouse models
- 키워드
- AD risk gene
- 기타저자
- University of California, Los Angeles Molecular and Medical Pharmacology 0639
- 기본자료저록
- Dissertations Abstracts International. 87-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105641
■006m o d
■007cr#unu||||||||
■020 ▼a9798270219901
■035 ▼a(MiAaPQ)AAI32398486
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a615
■1001 ▼aDe La Rocha, Amberlene Jaymie.
■24510▼aNovel Mouse Genetic Tools to Characterize Molecular and Cellular Pathologies Associated With Alzheimer's Disease
■260 ▼a[Sl]▼bUniversity of California, Los Angeles▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a160 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-06, Section: B.
■500 ▼aAdvisor: Yang, Xiangdong William;Kornblum, Harley I.
■5021 ▼aThesis (Ph.D.)--University of California, Los Angeles, 2025.
■520 ▼aAlzheimer's disease (AD) is a major global health challenge, with limited therapeutic options currently available. As a multifactorial disorder, AD is characterized by pathology involving multiple molecular and cellular pathways. Advancing our understanding of AD pathogenesis and identifying effective disease-modifying therapies requires continuous innovation to improve research models. A critical step toward this goal is the development of novel experimental models that address existing gaps in the field. In this dissertation, I characterize two novel mouse genetic tools designed to advance AD research. The first is a novel Bacterial Artificial Chromosome (BAC) transgenic model targeting the understudied AD risk gene MS4A4E, localized within the GWAS-identified MS4A gene cluster. Using immunohistochemistry and bulk RNA sequencing, I discovered sex-specific effects on AD-like pathology in the 5xFAD mouse background. Notably, 7-month-old male BAC-MS4A/5xFAD mice had exacerbation of both amyloid pathology and upregulated DAM-like genes, especially enriched in microglial pathways. This BAC transgenic model provides a valuable platform for investigating the role of MS4A4E in AD pathogenesis and its influence on microglial function.The second model presented is the application of the Mononucleotide Repeat Frameshift (MORF) 3 model, which was previously developed in our lab to visualize the detailed morphology of genetically-defined cell populations. Applying this cutting edge mouse genetic tool to AD research, I demonstrated that axonal pathology, specifically axonal spheroids, can be visualized and quantified in layer 5 pyramidal neurons in an amyloid AD mouse model. Preliminary findings suggest that axonal spheroid density increases with age and differs between brain regions. This genetic tool provides a method to characterize axonal pathology as a potential indicator of disease burden.Together, these genetic tools expand the repertoire of experimental models available for studying Alzheimer's disease. Here, I demonstrate how these models can provide new insights into the mechanisms underlying disease progression and facilitate more precise characterization of pathological features.
■590 ▼aSchool code: 0031.
■650 4▼aPharmacology
■650 4▼aNeurosciences
■650 4▼aGenetics
■650 4▼aPathology
■653 ▼aAlzheimer's disease
■653 ▼aMouse models
■653 ▼aAD risk gene
■653 ▼aMononucleotide Repeat Frameshift
■653 ▼aBacterial Artificial Chromosome
■690 ▼a0419
■690 ▼a0317
■690 ▼a0369
■690 ▼a0571
■71020▼aUniversity of California, Los Angeles▼bMolecular and Medical Pharmacology 0639.
■7730 ▼tDissertations Abstracts International▼g87-06B.
■790 ▼a0031
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360940▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


