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Notch-Activated Basophils Support Intestinal CD4+ T Cell Fate and Function During Helminth Infection
Notch-Activated Basophils Support Intestinal CD4+ T Cell Fate and Function During Helminth...
Notch-Activated Basophils Support Intestinal CD4+ T Cell Fate and Function During Helminth Infection

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202103155
ISBN  
9798288820564
DDC  
616.079
저자명  
Warner, Lindsey Marie.
서명/저자  
Notch-Activated Basophils Support Intestinal CD4+ T Cell Fate and Function During Helminth Infection
발행사항  
[Sl] : University of Washington, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
119 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
주기사항  
Advisor: Tait Wojno, Elia.
학위논문주기  
Thesis (Ph.D.)--University of Washington, 2025.
초록/해제  
요약Parasitic helminth infections affect over 1 billion people worldwide, underscoring the need to study host-parasite interactions for therapeutic intervention. Helminth infection provokes a Type 2 inflammatory response orchestrated by CD4+ T helper 2 (Th2) cells. In the intestine, Th2s elicit an interleukin-13 (IL-13)-dependent "weep and sweep" response from the epithelium to drive parasite clearance. Tissue-specific cues critically optimize intestinal CD4+ T cell responses, but the exact mechanisms that regulate intestinal Th2 responses remain unclear. Basophils, a rare granulocyte, are associated with Th2 function. However, the basophil-dependent signals that support intestinal Th2s are incompletely defined. Previously, we identified the Notch signaling pathway in basophil activation during Trichuris muris infection, a mouse model of human whipworm. Here, we show that loss of Notch-activation in basophils results in defective parasite clearance and a blunted Th2 response. We found that basophil-intrinsic Notch was not only required for infection-elicited Th2 cytokine responses, but also for maintaining a broader IL-4 production program across a larger population of diverse intestinal CD4+ T cells. Intestinal CD4+ T cell cytokine production was basophil-dependent in vitro and in vivo, but independent of basophil-secreted factors. Our findings highlight an IL-4 autocrine signaling module that mediates intestinal CD4+ T cell fate and function via direct cell-cell interaction with basophils during helminth infection. These data improve our understanding of the tissue-specific mechanisms required for robust Type 2 immune responses and may inform the development of new therapeutic interventions for helminth infection. 
일반주제명  
Immunology
일반주제명  
Cellular biology
일반주제명  
Biology
일반주제명  
Parasitology
키워드  
Basophils
키워드  
Therapeutic intervention
키워드  
Helminth infection
키워드  
Notch-activation
키워드  
T helper 2
기타저자  
University of Washington Immunology
기본자료저록  
Dissertations Abstracts International. 87-01B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aWarner,  Lindsey  Marie.
■24510▼aNotch-Activated  Basophils  Support  Intestinal  CD4+  T  Cell  Fate  and  Function  During  Helminth  Infection
■260    ▼a[Sl]▼bUniversity  of  Washington▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a119  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-01,  Section:  B.
■500    ▼aAdvisor:  Tait  Wojno,  Elia.
■5021  ▼aThesis  (Ph.D.)--University  of  Washington,  2025.
■520    ▼aParasitic  helminth  infections  affect  over  1  billion  people  worldwide,  underscoring  the  need  to  study  host-parasite  interactions  for  therapeutic  intervention.  Helminth  infection  provokes  a  Type  2  inflammatory  response  orchestrated  by  CD4+  T  helper  2  (Th2)  cells.  In  the  intestine,  Th2s  elicit  an  interleukin-13  (IL-13)-dependent  "weep  and  sweep"  response  from  the  epithelium  to  drive  parasite  clearance.  Tissue-specific  cues  critically  optimize  intestinal  CD4+  T  cell  responses,  but  the  exact  mechanisms  that  regulate  intestinal  Th2  responses  remain  unclear.  Basophils,  a  rare  granulocyte,  are  associated  with  Th2  function.  However,  the  basophil-dependent  signals  that  support  intestinal  Th2s  are  incompletely  defined.  Previously,  we  identified  the  Notch  signaling  pathway  in  basophil  activation  during  Trichuris  muris  infection,  a  mouse  model  of  human  whipworm.  Here,  we  show  that  loss  of  Notch-activation  in  basophils  results  in  defective  parasite  clearance  and  a  blunted  Th2  response.  We  found  that  basophil-intrinsic  Notch  was  not  only  required  for  infection-elicited  Th2  cytokine  responses,  but  also  for  maintaining  a  broader  IL-4  production  program  across  a  larger  population  of  diverse  intestinal  CD4+  T  cells.  Intestinal  CD4+  T  cell  cytokine  production  was  basophil-dependent  in  vitro  and  in vivo,  but  independent  of  basophil-secreted  factors.  Our  findings  highlight  an  IL-4  autocrine  signaling  module  that  mediates  intestinal  CD4+  T  cell  fate  and  function  via  direct  cell-cell  interaction  with  basophils  during  helminth  infection.  These  data  improve  our  understanding  of  the  tissue-specific  mechanisms  required  for  robust  Type  2  immune  responses  and  may  inform  the  development  of  new  therapeutic  interventions  for  helminth  infection. 
■590    ▼aSchool  code:  0250.
■650  4▼aImmunology
■650  4▼aCellular  biology
■650  4▼aBiology
■650  4▼aParasitology
■653    ▼aBasophils
■653    ▼aTherapeutic  intervention
■653    ▼aHelminth  infection
■653    ▼aNotch-activation
■653    ▼aT  helper  2
■690    ▼a0982
■690    ▼a0379
■690    ▼a0306
■690    ▼a0718
■71020▼aUniversity  of  Washington▼bImmunology.
■7730  ▼tDissertations  Abstracts  International▼g87-01B.
■790    ▼a0250
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357246▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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