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Acquired Resistance Against Penetration by Strongylodies ratti Is Mediated by Il-33-Dependent Induction of Gamma Delta T Cells
Acquired Resistance Against Penetration by Strongylodies ratti Is Mediated by Il-33-Dependent Induction of Gamma Delta T Cells
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103000
- ISBN
- 9798280760394
- DDC
- 616.079
- 서명/저자
- Acquired Resistance Against Penetration by Strongylodies ratti Is Mediated by Il-33-Dependent Induction of Gamma Delta T Cells
- 발행사항
- [Sl] : University of Pennsylvania, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 197 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Herbert, De'Broski R.
- 학위논문주기
- Thesis (Ph.D.)--University of Pennsylvania, 2025.
- 초록/해제
- 요약Interleukin 33 (IL-33) is an alarmin cytokine released from damaged epithelia essential for protecting against soil-transmitted gastrointestinal helminth (STH) infection. However, whether IL-33 serves any role in cutaneous immunity against parasites remains unclear. While epithelial cells are considered the predominant source of IL-33, our recent work demonstrates that CD11c+ myeloid antigen-presenting cells (APCs) can express IL-33 to shape Type 2 immunity. We developed a percutaneous infection model using Strongylodies ratti, a rodent-specific STH, to better understand the mechanisms of acquired host protection and the potential role of IL-33. Data show that C57BL/6 mice develop resistance to percutaneous penetration and distinct phenotypic characteristics of type 2 immunity upon secondary challenge, but IL-33 deficient mice lack resistance to penetration. Surprisingly, mice with a selective IL-33 deficiency only in myeloid APCs (CD11cCre) also failed to develop secondary resistance to S. ratti, suggesting that myeloid-derived IL-33 is essential for resistance to percutaneous infection. Mechanistically, we find that loss of myeloid IL-33 impairs the recruitment of γδ T cells that express the IL-33 receptor ST2 and CD62L+ γδ T cells. Additionally, mice that lack all γδ T cells show defective protective immunity against S. ratti. Interestingly, mice lacking the Type 2 transcription factor STAT6 (Signal transducer and activator of transcription 6) have no defects in primary or secondary cutaneous immunity suggesting that IL-33 drives non-canonical protective immune responses in the skin mediated by γδ T cells. These investigations imply that myeloid APCs are a necessary source of IL-33 that drives acquired immunity against helminths, potentially through regulating unique CD62L+ /ST2+ populations of γδ T cells and potentially their effector function(s).
- 일반주제명
- Immunology
- 일반주제명
- Microbiology
- 일반주제명
- Parasitology
- 일반주제명
- Pathology
- 키워드
- Inteleukin-33
- 키워드
- Myeloid cells
- 키워드
- Skin barrier
- 기타저자
- University of Pennsylvania Immunology
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103000
■006m o d
■007cr#unu||||||||
■020 ▼a9798280760394
■035 ▼a(MiAaPQ)AAI31839744
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a616.079
■1001 ▼aJean, Erin Evonne.
■24510▼aAcquired Resistance Against Penetration by Strongylodies ratti Is Mediated by Il-33-Dependent Induction of Gamma Delta T Cells
■260 ▼a[Sl]▼bUniversity of Pennsylvania▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a197 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Herbert, De'Broski R.
■5021 ▼aThesis (Ph.D.)--University of Pennsylvania, 2025.
■520 ▼aInterleukin 33 (IL-33) is an alarmin cytokine released from damaged epithelia essential for protecting against soil-transmitted gastrointestinal helminth (STH) infection. However, whether IL-33 serves any role in cutaneous immunity against parasites remains unclear. While epithelial cells are considered the predominant source of IL-33, our recent work demonstrates that CD11c+ myeloid antigen-presenting cells (APCs) can express IL-33 to shape Type 2 immunity. We developed a percutaneous infection model using Strongylodies ratti, a rodent-specific STH, to better understand the mechanisms of acquired host protection and the potential role of IL-33. Data show that C57BL/6 mice develop resistance to percutaneous penetration and distinct phenotypic characteristics of type 2 immunity upon secondary challenge, but IL-33 deficient mice lack resistance to penetration. Surprisingly, mice with a selective IL-33 deficiency only in myeloid APCs (CD11cCre) also failed to develop secondary resistance to S. ratti, suggesting that myeloid-derived IL-33 is essential for resistance to percutaneous infection. Mechanistically, we find that loss of myeloid IL-33 impairs the recruitment of γδ T cells that express the IL-33 receptor ST2 and CD62L+ γδ T cells. Additionally, mice that lack all γδ T cells show defective protective immunity against S. ratti. Interestingly, mice lacking the Type 2 transcription factor STAT6 (Signal transducer and activator of transcription 6) have no defects in primary or secondary cutaneous immunity suggesting that IL-33 drives non-canonical protective immune responses in the skin mediated by γδ T cells. These investigations imply that myeloid APCs are a necessary source of IL-33 that drives acquired immunity against helminths, potentially through regulating unique CD62L+ /ST2+ populations of γδ T cells and potentially their effector function(s).
■590 ▼aSchool code: 0175.
■650 4▼aImmunology
■650 4▼aMicrobiology
■650 4▼aParasitology
■650 4▼aPathology
■653 ▼aCutaneous immunity
■653 ▼aGamma delta T cell
■653 ▼aHelminth infection
■653 ▼aInteleukin-33
■653 ▼aMyeloid cells
■653 ▼aSkin barrier
■690 ▼a0982
■690 ▼a0410
■690 ▼a0718
■690 ▼a0571
■71020▼aUniversity of Pennsylvania▼bImmunology.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0175
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356600▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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