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Mucosal-Associated Invariant T Cells in Critical Illness- [electronic resource]
Mucosal-Associated Invariant T Cells in Critical Illness - [electronic resource]
Mucosal-Associated Invariant T Cells in Critical Illness- [electronic resource]

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자료유형  
 학위논문파일 국외
최종처리일시  
20240214100119
ISBN  
9798380128698
DDC  
616.079
저자명  
Labuz, Daniel Roy.
서명/저자  
Mucosal-Associated Invariant T Cells in Critical Illness - [electronic resource]
발행사항  
[S.l.]: : The University of Utah., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(131 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
주기사항  
Advisor: Leung, Daniel Ted.
학위논문주기  
Thesis (Ph.D.)--The University of Utah, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약Systemic critical illnesses, such as burn injury and sepsis, fundamentally and negatively alter the human immune system's ability to defend against pathogens. Severe burn injuries can lead to sepsis, which, if not treated appropriately and in a timely manner, can result in death. Recently it has been suggested that there are 50 million cases of sepsis worldwide, and with advances in medical treatments, the mortality rate from sepsis has decreased from 40-50% to approximately 20% over the past three decades. However, we still lack a firm understanding of the immunological intricacies that cause sepsis and how to effectively treat post-acute sepsis, which can severely weaken the immune system.Our study focuses on conventional αβ T cells and mucosal-associated invariant T (MAIT) cells in human burn injury and acute sepsis. MAIT cells are a unique subset of αβ T cells that express Vα7.2 and can be rapidly activated in a TCR-dependent manner through microbial-derived riboflavin metabolites presented on MR1 proteins by antigen-presenting cells. Recently, studies using a mouse model of skin wound repair have implicated MAIT cells in tissue repair transcriptionally and mechanistically. Due to their timely response to infection and rapid activation, we hypothesize that MAIT cells play an important role in both sepsis and burn injury by aiding in the clearance of infections.In Chapter 2, we explore the characteristics of conventional αβ T cells and MAIT cells in burn injuries of human skin, comparing their phenotypic and functional differences to non-burned skin. Chapter 3 delves into MAIT cells in human acute sepsis and investigates their transcriptional and epigenetic changes that may account for MAIT cell dysfunction. Finally, in Chapter 4, we propose a novel strategy to efficiently target the proliferation of MAIT cells ex vivo, which could potentially serve as a form of immunotherapy for individuals experiencing critical illness. Our research sheds light on the unique features of conventional T cells and MAIT cells in human burn injuries and acute sepsis.
일반주제명  
Immunology.
일반주제명  
Molecular biology.
일반주제명  
Cellular biology.
키워드  
Burn injury
키워드  
Mucosal-associated invariant T
키워드  
Mucosal barriers
키워드  
Sepsis
키워드  
Skin immunology
키워드  
T cells
기타저자  
The University of Utah Pathology
기본자료저록  
Dissertations Abstracts International. 85-02B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■020    ▼a9798380128698
■035    ▼a(MiAaPQ)AAI30423699
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a616.079
■1001  ▼aLabuz,  Daniel  Roy.
■24510▼aMucosal-Associated  Invariant  T  Cells  in  Critical  Illness▼h[electronic  resource]
■260    ▼a[S.l.]:▼bThe  University  of  Utah.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(131  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-02,  Section:  B.
■500    ▼aAdvisor:  Leung,  Daniel  Ted.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Utah,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aSystemic  critical  illnesses,  such  as  burn  injury  and  sepsis,  fundamentally  and  negatively  alter  the  human  immune  system's  ability  to  defend  against  pathogens.  Severe  burn  injuries  can  lead  to  sepsis,  which,  if  not  treated  appropriately  and  in  a  timely  manner,  can  result  in  death.  Recently  it  has  been  suggested  that  there  are  50  million  cases  of  sepsis  worldwide,  and  with  advances  in  medical  treatments,  the  mortality  rate  from  sepsis  has  decreased  from  40-50%  to  approximately  20%  over  the  past  three  decades.  However,  we  still  lack  a  firm  understanding  of  the  immunological  intricacies  that  cause  sepsis  and  how  to  effectively  treat  post-acute  sepsis,  which  can  severely  weaken  the  immune  system.Our  study  focuses  on  conventional  αβ  T  cells  and  mucosal-associated  invariant  T  (MAIT)  cells  in  human  burn  injury  and  acute  sepsis.  MAIT  cells  are  a  unique  subset  of  αβ  T  cells  that  express  Vα7.2  and  can  be  rapidly  activated  in  a  TCR-dependent  manner  through  microbial-derived  riboflavin  metabolites  presented  on  MR1  proteins  by  antigen-presenting  cells.  Recently,  studies  using  a  mouse  model  of  skin  wound  repair  have  implicated  MAIT  cells  in  tissue  repair  transcriptionally  and  mechanistically.  Due  to  their  timely  response  to  infection  and  rapid  activation,  we  hypothesize  that  MAIT  cells  play  an  important  role  in  both  sepsis  and  burn  injury  by  aiding  in  the  clearance  of  infections.In  Chapter  2,  we  explore  the  characteristics  of  conventional  αβ  T  cells  and  MAIT  cells  in  burn  injuries  of  human  skin,  comparing  their  phenotypic  and  functional  differences  to  non-burned  skin.  Chapter  3  delves  into  MAIT  cells  in  human  acute  sepsis  and  investigates  their  transcriptional  and  epigenetic  changes  that  may  account  for  MAIT  cell  dysfunction.  Finally,  in  Chapter  4,  we  propose  a  novel  strategy  to  efficiently  target  the  proliferation  of  MAIT  cells  ex  vivo,  which  could  potentially  serve  as  a  form  of  immunotherapy  for  individuals  experiencing  critical  illness.  Our  research  sheds  light  on  the  unique  features  of  conventional  T  cells  and  MAIT  cells  in  human  burn  injuries  and  acute  sepsis.
■590    ▼aSchool  code:  0240.
■650  4▼aImmunology.
■650  4▼aMolecular  biology.
■650  4▼aCellular  biology.
■653    ▼aBurn  injury
■653    ▼aMucosal-associated  invariant  T
■653    ▼aMucosal  barriers
■653    ▼aSepsis
■653    ▼aSkin  immunology
■653    ▼aT  cells
■690    ▼a0982
■690    ▼a0307
■690    ▼a0379
■71020▼aThe  University  of  Utah▼bPathology.
■7730  ▼tDissertations  Abstracts  International▼g85-02B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0240
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16931797▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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