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Charactering Monocyte-Lineage Cells in Mouse Synovial Tissue Using Fate-Mapping and Single Cell RNA Sequencing
Charactering Monocyte-Lineage Cells in Mouse Synovial Tissue Using Fate-Mapping and Single Cell RNA Sequencing
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104807
- ISBN
- 9798291583937
- DDC
- 610
- 저자명
- Wang, Yidan.
- 서명/저자
- Charactering Monocyte-Lineage Cells in Mouse Synovial Tissue Using Fate-Mapping and Single Cell RNA Sequencing
- 발행사항
- [Sl] : Northwestern University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 190 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Fang, Deyu.
- 학위논문주기
- Thesis (Ph.D.)--Northwestern University, 2025.
- 초록/해제
- 요약Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint swelling, cartilage damage, pannus formation, and bone erosion. Monocytes and macrophages are pivotal cell types that contribute to the pathogenesis of rheumatoid arthritis (RA). Despite their involvement in RA progression, the precise functions of monocytes in RA remain unclear. Notably, monocyte depletion in RA-like mouse models does not prevent the development of inflammatory arthritis, and the tools used to deplete monocytes frequently exhibit off-target effects, primarily on macrophages. In recent years, we identified a monocyte-lineage population, termed tissue-resident monocyte-linage cells (TRMC), which reside in the extravascular space and are at least partially embryonic-derived, and distinct from circulating monocytes and macrophages. However, the precise ontogeny and heterogeneity of TRMC remain unknown.In this thesis, we first investigated 19 lineage-tracing and reporter mouse models across all myeloid cell populations in the synovial tissue and peripheral blood. Specifically, we assessed the fidelity of these models in labeling TRMC and synovial macrophage subsets, as well as their off-target effects. Although no single model was found to selectively and comprehensively trace TRMC or synovial macrophage subsets, single-cell genomic datasets revealed additional candidate gene markers with the potential to improve specificity. Notably, the selectively positive labeling observed in some lineage tracing models suggests underlying heterogeneity within the TRMC population. To further explore this, we examined the heterogeneity and ontogeny of TRMC. Using bone marrow chimaeras and parabiosis mouse models, we demonstrated that TRMC originate from both embryonic and bone marrow-derived sources. Through single-cell transcriptomic analysis, we identified three distinct TRMC subsets, each with unique functions and developmental origins. One TRMC subset, MHCII+ TRMC, is Ccr2-dependent. During the progression of inflammatory arthritis in mice, the abundance and transcriptional profiles of the 3 TRMC subsets alter dynamically, suggesting their disease context-specific functional roles.Altogether, the findings presented in this thesis demonstrate that TRMC constitute a heterogeneous cell population within the synovial tissue. The dynamic changes of TRMC subsets during arthritis development highlight their functional plasticity. The lack of specific and reliable surface markers for TRMC has limited the ability to perform targeted loss-of-function experiments to assess their causal role in RA directly, therefore, future functional studies investigating the roles of TRMC in RA will be conducted at the subset level, using depletion mouse model targeting specific TRMC subpopulations or novel models based on unique TRMC gene markers identified through single-cell RNA-sequencing.
- 일반주제명
- Medicine
- 일반주제명
- Health sciences
- 일반주제명
- Immunology
- 키워드
- Cartilage damage
- 기타저자
- Northwestern University Driskill Graduate Training Program in Life Sciences
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202104807
■006m o d
■007cr#unu||||||||
■020 ▼a9798291583937
■035 ▼a(MiAaPQ)AAI32166125
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a610
■1001 ▼aWang, Yidan.
■24510▼aCharactering Monocyte-Lineage Cells in Mouse Synovial Tissue Using Fate-Mapping and Single Cell RNA Sequencing
■260 ▼a[Sl]▼bNorthwestern University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a190 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Fang, Deyu.
■5021 ▼aThesis (Ph.D.)--Northwestern University, 2025.
■520 ▼aRheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint swelling, cartilage damage, pannus formation, and bone erosion. Monocytes and macrophages are pivotal cell types that contribute to the pathogenesis of rheumatoid arthritis (RA). Despite their involvement in RA progression, the precise functions of monocytes in RA remain unclear. Notably, monocyte depletion in RA-like mouse models does not prevent the development of inflammatory arthritis, and the tools used to deplete monocytes frequently exhibit off-target effects, primarily on macrophages. In recent years, we identified a monocyte-lineage population, termed tissue-resident monocyte-linage cells (TRMC), which reside in the extravascular space and are at least partially embryonic-derived, and distinct from circulating monocytes and macrophages. However, the precise ontogeny and heterogeneity of TRMC remain unknown.In this thesis, we first investigated 19 lineage-tracing and reporter mouse models across all myeloid cell populations in the synovial tissue and peripheral blood. Specifically, we assessed the fidelity of these models in labeling TRMC and synovial macrophage subsets, as well as their off-target effects. Although no single model was found to selectively and comprehensively trace TRMC or synovial macrophage subsets, single-cell genomic datasets revealed additional candidate gene markers with the potential to improve specificity. Notably, the selectively positive labeling observed in some lineage tracing models suggests underlying heterogeneity within the TRMC population. To further explore this, we examined the heterogeneity and ontogeny of TRMC. Using bone marrow chimaeras and parabiosis mouse models, we demonstrated that TRMC originate from both embryonic and bone marrow-derived sources. Through single-cell transcriptomic analysis, we identified three distinct TRMC subsets, each with unique functions and developmental origins. One TRMC subset, MHCII+ TRMC, is Ccr2-dependent. During the progression of inflammatory arthritis in mice, the abundance and transcriptional profiles of the 3 TRMC subsets alter dynamically, suggesting their disease context-specific functional roles.Altogether, the findings presented in this thesis demonstrate that TRMC constitute a heterogeneous cell population within the synovial tissue. The dynamic changes of TRMC subsets during arthritis development highlight their functional plasticity. The lack of specific and reliable surface markers for TRMC has limited the ability to perform targeted loss-of-function experiments to assess their causal role in RA directly, therefore, future functional studies investigating the roles of TRMC in RA will be conducted at the subset level, using depletion mouse model targeting specific TRMC subpopulations or novel models based on unique TRMC gene markers identified through single-cell RNA-sequencing.
■590 ▼aSchool code: 0163.
■650 4▼aMedicine
■650 4▼aHealth sciences
■650 4▼aImmunology
■653 ▼aRheumatoid arthritis
■653 ▼aCartilage damage
■653 ▼aPivotal cell types
■690 ▼a0564
■690 ▼a0566
■690 ▼a0982
■71020▼aNorthwestern University▼bDriskill Graduate Training Program in Life Sciences.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0163
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358901▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


