본문

서브메뉴

CARD8 Inflammasome Activation Upon HIV-1 Infection
CARD8 Inflammasome Activation Upon HIV-1 Infection
CARD8 Inflammasome Activation Upon HIV-1 Infection

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211151026
ISBN  
9798382214863
DDC  
576.6
저자명  
Kulsuptrakul, Jessie.
서명/저자  
CARD8 Inflammasome Activation Upon HIV-1 Infection
발행사항  
[Sl] : University of Washington, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
128 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-10, Section: B.
주기사항  
Advisor: Emerman, Michael;Mitchell, Patrick.
학위논문주기  
Thesis (Ph.D.)--University of Washington, 2024.
초록/해제  
요약Inflammasomes are host cytosolic innate immune complexes that assemble upon detection of diverse pathogen-associated cues and play a crucial role in host defense but can also contribute to inflammatory pathogenesis. In prior work, the inflammasome-forming sensor CARD8 was reported to recognize the enzymatic activity of the protease of human immunodeficiency virus type 1 (HIV-1). I demonstrated that human CARD8 has a unique motif among hominoids and Old World monkeys that renders it susceptible to cleavage by HIV-1 protease (HIV-1PR). Furthermore, the protease from the precursor to HIV-1, SIVcpz, can cleave human CARD8, but not chimpanzee CARD8. This indicates that the precursor viruses to HIV-1 were poised to cleave human CARD8 prior to cross-species transmission into human. In addition, I show that CARD8 sensing can happen during acute HIV-1 infection, using multiple modes of infection in cancer and primary cell lines, in a manner dependent on HIV-1PR cleavage of the human-specific motif in CARD8, resulting in a lytic form of cell death called pyroptosis and the release of proinflammatory cytokines. Genetic knockout of the inflammasome adaptor protein ASC suggests that cell death associated with HIV-dependent inflammasome activation is primarily CARD8-dependent whereas cytokine release may be amplified through secondary modulation by the NLRP3 inflammasome. Additionally, I identified mutant HIV-1 proteases from a panel of protease inhibitor resistant HIV-1 strains that differentially cleave and activate CARD8 compared to wildtype HIV-1.HIV-1 arose from multiple cross-species transmissions from simian immunodeficiency virus (SIV) infecting other primates. While some non-human primates infected with SIVs exhibit inflammatory pathologies, humans present with the most severe inflammatory pathogenesis, progressing to acquired immunodeficiency syndrome (AIDS) without anti-retroviral therapy. The findings outlined in this thesis suggest a model whereby human-specific activation of the CARD8 inflammasome may contribute to chronic immune activation and may partially explain the heightened pathogenesis of HIV-1 in humans relative to SIV in other non-human primate reservoirs. 
일반주제명  
Virology
일반주제명  
Immunology
일반주제명  
Evolution & development
일반주제명  
Cellular biology
일반주제명  
Molecular biology
키워드  
Cross-species transmission
키워드  
Inflammasomes
키워드  
Protease
키워드  
Simian immunodeficiency virus
기타저자  
University of Washington Molecular and Cellular Biology
기본자료저록  
Dissertations Abstracts International. 85-10B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008250123s2024        us                              c    eng  d
■001000017160474
■00520250211151026
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798382214863
■035    ▼a(MiAaPQ)AAI30996850
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a576.6
■1001  ▼aKulsuptrakul,  Jessie.
■24510▼aCARD8  Inflammasome  Activation  Upon  HIV-1  Infection
■260    ▼a[Sl]▼bUniversity  of  Washington▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a128  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-10,  Section:  B.
■500    ▼aAdvisor:  Emerman,  Michael;Mitchell,  Patrick.
■5021  ▼aThesis  (Ph.D.)--University  of  Washington,  2024.
■520    ▼aInflammasomes  are  host  cytosolic  innate  immune  complexes  that  assemble  upon  detection  of  diverse  pathogen-associated  cues  and  play  a  crucial  role  in  host  defense  but  can  also  contribute  to  inflammatory  pathogenesis.  In  prior  work,  the  inflammasome-forming  sensor  CARD8  was  reported  to  recognize  the  enzymatic  activity  of  the  protease  of  human  immunodeficiency  virus  type  1  (HIV-1).  I  demonstrated  that  human  CARD8  has  a  unique  motif  among  hominoids  and  Old  World  monkeys  that  renders  it  susceptible  to  cleavage  by  HIV-1  protease  (HIV-1PR).  Furthermore,  the  protease  from  the  precursor  to  HIV-1,  SIVcpz,  can  cleave  human  CARD8,  but  not  chimpanzee  CARD8.  This  indicates  that  the  precursor  viruses  to  HIV-1  were  poised  to  cleave  human  CARD8  prior  to  cross-species  transmission  into  human.  In  addition,  I  show  that  CARD8  sensing  can  happen  during  acute  HIV-1  infection,  using  multiple  modes  of  infection  in  cancer  and  primary  cell  lines,  in  a  manner  dependent  on  HIV-1PR  cleavage  of  the  human-specific  motif  in  CARD8,  resulting  in  a  lytic  form  of  cell  death  called  pyroptosis  and the  release  of  proinflammatory  cytokines.  Genetic  knockout  of  the  inflammasome  adaptor  protein  ASC  suggests  that  cell  death  associated  with  HIV-dependent  inflammasome  activation  is  primarily  CARD8-dependent  whereas  cytokine  release  may  be  amplified  through  secondary  modulation  by  the  NLRP3  inflammasome.  Additionally,  I  identified  mutant  HIV-1  proteases  from  a  panel  of  protease  inhibitor  resistant  HIV-1  strains  that  differentially  cleave  and  activate  CARD8  compared  to  wildtype  HIV-1.HIV-1  arose  from  multiple  cross-species  transmissions  from  simian  immunodeficiency  virus  (SIV)  infecting  other  primates.  While  some  non-human  primates  infected  with  SIVs  exhibit  inflammatory  pathologies,  humans  present  with  the  most  severe  inflammatory  pathogenesis,  progressing  to  acquired  immunodeficiency  syndrome  (AIDS)  without  anti-retroviral  therapy.  The  findings  outlined  in  this  thesis  suggest  a  model  whereby  human-specific  activation  of  the  CARD8  inflammasome  may  contribute  to  chronic  immune  activation  and  may  partially  explain  the  heightened  pathogenesis  of  HIV-1  in  humans  relative  to  SIV  in  other  non-human  primate  reservoirs. 
■590    ▼aSchool  code:  0250.
■650  4▼aVirology
■650  4▼aImmunology
■650  4▼aEvolution  &  development
■650  4▼aCellular  biology
■650  4▼aMolecular  biology
■653    ▼aCross-species  transmission
■653    ▼aInflammasomes
■653    ▼aProtease
■653    ▼aSimian  immunodeficiency  virus
■690    ▼a0720
■690    ▼a0982
■690    ▼a0412
■690    ▼a0379
■690    ▼a0307
■71020▼aUniversity  of  Washington▼bMolecular  and  Cellular  Biology.
■7730  ▼tDissertations  Abstracts  International▼g85-10B.
■790    ▼a0250
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160474▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF13326 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.