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Regulatory Lymphocyte Contribution to a Chronic Allergic Disease
Regulatory Lymphocyte Contribution to a Chronic Allergic Disease
Regulatory Lymphocyte Contribution to a Chronic Allergic Disease

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202104706
ISBN  
9798293802074
DDC  
616.079
저자명  
Clement, Rachel L.
서명/저자  
Regulatory Lymphocyte Contribution to a Chronic Allergic Disease
발행사항  
[Sl] : University of Pennsylvania, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
93 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
주기사항  
Advisor: Hill, David A.;Vella, Laura.
학위논문주기  
Thesis (Ph.D.)--University of Pennsylvania, 2025.
초록/해제  
요약Allergic disease causes a significant health burden, as 80% of the US population is directly or indirectly affected. Chronic allergic diseases develop after repeated allergen exposure, resulting in immune dysregulation and tissue remodeling. A better understanding of how immune dysregulation occurs is needed to fully understand these diseases and to provide more targeted therapies. To study chronic allergic disease, we used Eosinophilic Esophagitis (EoE) as an ideal system, as it shares many features with other chronic allergic diseases. One feature includes a shift in the inflammatory milieu as increased IFNγ signatures are present. However, how IFNγ influences immune dysregulation, particularly regulatory B (Bregs) and T cells (Tregs) in chronic allergic disease, has not been studied. Herein, we use EoE patient samples and a food-antigen-driven model of EoE to mechanistically interrogate regulatory lymphocytes in vitro and in vivo. We use gain and loss-of-function approaches to determine the contribution of regulatory lymphocytes to disease outcomes. Finally, we test the effects IFNγ signaling has on Bregs and Tregs by using genetic mouse models that lack IFNGR1 on these individual populations. We find that while Bregs and Tregs influence different aspects of EoE pathogenesis, both are dysregulated due to IFNγ signaling. These findings have important implications for understanding EoE's etiology and implementing future therapies that target IFNγ.
일반주제명  
Immunology
일반주제명  
Cellular biology
일반주제명  
Pathology
일반주제명  
Molecular biology
키워드  
Chronic allergies
키워드  
Eosinophilic Esophagitis
키워드  
Interferon gamma
키워드  
Regulatory B cells
키워드  
Regulatory T cells
키워드  
Tumor growth factor beta
기타저자  
University of Pennsylvania Immunology
기본자료저록  
Dissertations Abstracts International. 87-03B.
전자적 위치 및 접속  
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■1001  ▼aClement,  Rachel  L.
■24510▼aRegulatory  Lymphocyte  Contribution  to  a  Chronic  Allergic  Disease
■260    ▼a[Sl]▼bUniversity  of  Pennsylvania▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a93  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-03,  Section:  B.
■500    ▼aAdvisor:  Hill,  David  A.;Vella,  Laura.
■5021  ▼aThesis  (Ph.D.)--University  of  Pennsylvania,  2025.
■520    ▼aAllergic  disease  causes  a  significant  health  burden,  as  80%  of  the  US  population  is  directly  or  indirectly  affected.  Chronic  allergic  diseases  develop  after  repeated  allergen  exposure,  resulting  in  immune  dysregulation  and  tissue  remodeling.  A  better  understanding  of  how  immune  dysregulation  occurs  is  needed  to  fully  understand  these  diseases  and  to  provide  more  targeted  therapies.  To  study  chronic  allergic  disease,  we  used  Eosinophilic  Esophagitis  (EoE)  as  an  ideal  system,  as  it  shares  many  features  with  other  chronic  allergic  diseases.  One  feature  includes  a  shift  in  the  inflammatory  milieu  as  increased  IFNγ  signatures  are  present.  However,  how  IFNγ  influences  immune  dysregulation,  particularly  regulatory  B  (Bregs)  and  T  cells  (Tregs)  in  chronic  allergic  disease,  has  not  been  studied.  Herein,  we  use  EoE  patient  samples  and  a  food-antigen-driven  model  of  EoE  to  mechanistically  interrogate  regulatory  lymphocytes  in  vitro  and  in  vivo.  We  use  gain  and  loss-of-function  approaches  to  determine  the  contribution  of  regulatory  lymphocytes  to  disease  outcomes.  Finally,  we  test  the  effects  IFNγ  signaling  has  on  Bregs  and  Tregs  by  using  genetic  mouse  models  that  lack  IFNGR1  on  these  individual  populations.  We  find  that  while  Bregs  and  Tregs  influence  different  aspects  of  EoE  pathogenesis,  both  are  dysregulated  due  to  IFNγ  signaling.  These  findings  have  important  implications  for  understanding  EoE's  etiology  and  implementing  future  therapies  that  target  IFNγ.
■590    ▼aSchool  code:  0175.
■650  4▼aImmunology
■650  4▼aCellular  biology
■650  4▼aPathology
■650  4▼aMolecular  biology
■653    ▼aChronic  allergies
■653    ▼aEosinophilic  Esophagitis
■653    ▼aInterferon  gamma
■653    ▼aRegulatory  B  cells
■653    ▼aRegulatory  T  cells
■653    ▼aTumor  growth  factor  beta
■690    ▼a0982
■690    ▼a0379
■690    ▼a0307
■690    ▼a0571
■71020▼aUniversity  of  Pennsylvania▼bImmunology.
■7730  ▼tDissertations  Abstracts  International▼g87-03B.
■790    ▼a0175
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358465▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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