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Evaluating the Complexity of the Immune Response to Vidutolimod: A Virus-Like Particle Containing a TLR9 Agonist- [electronic resource]
Evaluating the Complexity of the Immune Response to Vidutolimod: A Virus-Like Particle Con...
Evaluating the Complexity of the Immune Response to Vidutolimod: A Virus-Like Particle Containing a TLR9 Agonist- [electronic resource]

Detailed Information

자료유형  
 학위논문파일 국외
최종처리일시  
20240214100347
ISBN  
9798380179713
DDC  
616.079
저자명  
Sabree, Shakoora.
서명/저자  
Evaluating the Complexity of the Immune Response to Vidutolimod: A Virus-Like Particle Containing a TLR9 Agonist - [electronic resource]
발행사항  
[S.l.]: : The University of Iowa., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(119 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Weiner, George J.;Houtman, Jon C.
학위논문주기  
Thesis (Ph.D.)--The University of Iowa, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약Recent advances in cancer immunotherapy were recognized by the 2019 Nobel Prizes in Biomedicine, and show exciting new potential to greatly improve patient outcomes. However, many patients fail to mount a clinically meaningful anti-tumor immune response with current immunotherapies. In situ immunization is an immunotherapy strategy with the potential to overcome this limitation by altering the tumor microenvironment (TME) in a manner that allows for the generation of a tumor-specific immune response. Vidutolimod, previously known as CMP-001, is a novel formulation of a class A TLR9 agonist encased in a virus-like particle (VLP). This drug is currently under study as an in situ immunization agent in the treatment of cancer. Murine studies have shown that in situ immunization with vidutolimod in the context of systemic anti-PD1 therapy, results in a T cell dependent anti-tumor immune response that is superior to either drug alone. Ongoing clinical trials with vidutolimod in the context of anti-PD1 therapy show promising results. Yet, what remains unclear is how vidutolimod impacts the TME to ultimately lead to this enhanced immune response. This works aims to address this knowledge gap, so vidutolimod-mediated in situ immunization can be optimized clinically.Prior work has demonstrated two key events in the mechanism of action of vidutolimod: one, the immunostimulatory effects of vidutolimod are dependent on generation of an anti-Qβ antibody response which results in opsonization of vidutolimod by plasmacytoid dendritic cells (pDCs) and production of Type 1 Interferon and two, in situ immunization with vidutolimod induces a T cell dependent anti-tumor immune response. In this thesis, peripheral blood mononuclear cells are used as a model to study the TME. We begin by developing human anti-Qβ antibodies for use in in vitro experiments. This manufacturing process is described in detail in Chapter 2. Next, using this antibody, we utilize single cell RNA sequencing to elucidate the impact of human anti-Qβ-coated vidutolimod on the immune system. We show that anti-Qβ-coated vidutolimod induces production of Type 1 Interferon by pDCs. This in turn impacts on a variety of cell types, most notably monocytes. We further demonstrate that pDC-derived Type 1 Interferon in context with Fc gamma receptor (FcγR) signaling (induced by uptake of the anti-Qβ-coated vidutolimod immune complex) impacts monocytes in such a manner that enhances their T cell proliferative capacity. These studies are described in Chapter 3.In Chapter 4, we explore mechanisms regulating the production of Type 1 Interferon by pDCs in response to anti-Qβ-coated vidutolimod. We show that monocytes exposed to high levels of anti-Qβ-coated vidutolimod immune complexes negatively regulate Type 1 Interferon production by pDCs. These findings mirror what occurs during a viral memory response. Lastly, in Chapter 5, we summarize the aforementioned findings and highlight parallels in the fields of autoimmunity and virus biology. Understanding the role of immune complexes in related fields will be crucial as we continue to investigate the immune response to anti-Qβ-coated vidutolimod. Ultimately, this work highlights the diverse roles monocytes play in modulating the immune response to anti-Qβ-coated vidutolimod and downstream cellular immunity. This work advances our understanding of the mechanism of action of anti-Qβ-coated vidutolimod and has major implications for the continued efficacy of this drug in the clinic.
일반주제명  
Immunology.
일반주제명  
Microbiology.
일반주제명  
Cellular biology.
일반주제명  
Biology.
일반주제명  
Pharmaceutical sciences.
키워드  
Cancer
키워드  
Immunotherapy
키워드  
Virus-like particle
키워드  
Vidutolimod
키워드  
Anti-Qβ-coated
기타저자  
The University of Iowa Biomedical Science
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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MARC

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■0820  ▼a616.079
■1001  ▼aSabree,  Shakoora.
■24510▼aEvaluating  the  Complexity  of  the  Immune  Response  to  Vidutolimod:  A  Virus-Like  Particle  Containing  a  TLR9  Agonist▼h[electronic  resource]
■260    ▼a[S.l.]:▼bThe  University  of  Iowa.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(119  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Weiner,  George  J.;Houtman,  Jon  C.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Iowa,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aRecent  advances  in  cancer  immunotherapy  were  recognized  by  the  2019  Nobel  Prizes  in  Biomedicine,  and  show  exciting  new  potential  to  greatly  improve  patient  outcomes.  However,  many  patients  fail  to  mount  a  clinically  meaningful  anti-tumor  immune  response  with  current  immunotherapies.  In  situ  immunization  is  an  immunotherapy  strategy  with  the  potential  to  overcome  this  limitation  by  altering  the  tumor  microenvironment  (TME)  in  a  manner  that  allows  for  the  generation  of  a  tumor-specific  immune  response. Vidutolimod,  previously  known  as  CMP-001,  is  a  novel  formulation  of  a  class  A  TLR9  agonist  encased  in  a  virus-like  particle  (VLP).  This  drug  is  currently  under  study  as  an  in  situ  immunization  agent  in  the  treatment  of  cancer.  Murine  studies  have  shown  that  in  situ  immunization  with  vidutolimod  in  the  context  of  systemic  anti-PD1  therapy,  results  in  a  T  cell  dependent  anti-tumor  immune  response  that  is  superior  to  either  drug  alone.  Ongoing  clinical  trials  with  vidutolimod  in  the  context  of  anti-PD1  therapy  show  promising  results.  Yet,  what  remains  unclear  is  how  vidutolimod  impacts  the  TME  to  ultimately  lead  to  this  enhanced  immune  response.  This  works  aims  to  address  this  knowledge  gap,  so  vidutolimod-mediated  in  situ  immunization  can  be  optimized  clinically.Prior  work  has  demonstrated  two  key  events  in  the  mechanism  of  action  of  vidutolimod:  one,  the  immunostimulatory  effects  of  vidutolimod  are  dependent  on  generation  of  an  anti-Qβ  antibody  response  which  results  in  opsonization  of  vidutolimod  by  plasmacytoid  dendritic  cells  (pDCs)  and  production  of  Type  1  Interferon  and  two,  in  situ  immunization  with  vidutolimod  induces  a  T  cell  dependent  anti-tumor  immune  response. In  this  thesis,  peripheral  blood  mononuclear  cells  are  used  as  a  model  to  study  the  TME.  We  begin  by  developing  human  anti-Qβ  antibodies  for  use  in  in  vitro  experiments.  This  manufacturing  process  is  described  in  detail  in  Chapter  2. Next,  using  this  antibody,  we  utilize  single  cell  RNA  sequencing  to  elucidate  the  impact  of  human  anti-Qβ-coated  vidutolimod  on  the  immune  system.  We  show  that  anti-Qβ-coated  vidutolimod  induces  production  of  Type  1  Interferon  by  pDCs.  This  in  turn  impacts  on  a  variety  of  cell  types,  most  notably  monocytes.  We  further  demonstrate  that  pDC-derived  Type  1  Interferon  in  context  with  Fc  gamma  receptor  (FcγR)  signaling  (induced  by  uptake  of  the  anti-Qβ-coated  vidutolimod  immune  complex)  impacts  monocytes  in  such  a  manner  that  enhances  their  T  cell  proliferative  capacity.  These  studies  are  described  in  Chapter  3.In  Chapter  4,  we  explore  mechanisms  regulating  the  production  of  Type  1  Interferon  by  pDCs  in  response  to  anti-Qβ-coated  vidutolimod.  We  show  that  monocytes  exposed  to  high  levels  of  anti-Qβ-coated  vidutolimod  immune  complexes  negatively  regulate  Type  1  Interferon  production  by  pDCs.  These  findings  mirror  what  occurs  during  a  viral  memory  response. Lastly,  in  Chapter  5,  we  summarize  the  aforementioned  findings  and  highlight  parallels  in  the  fields  of  autoimmunity  and  virus  biology.  Understanding  the  role  of  immune  complexes  in  related  fields  will  be  crucial  as  we  continue  to  investigate  the  immune  response  to  anti-Qβ-coated  vidutolimod. Ultimately,  this  work  highlights  the  diverse  roles  monocytes  play  in  modulating  the  immune  response  to  anti-Qβ-coated  vidutolimod  and  downstream  cellular  immunity.  This  work  advances  our  understanding  of  the  mechanism  of  action  of  anti-Qβ-coated  vidutolimod  and  has  major  implications  for  the  continued  efficacy  of  this  drug  in  the  clinic.
■590    ▼aSchool  code:  0096.
■650  4▼aImmunology.
■650  4▼aMicrobiology.
■650  4▼aCellular  biology.
■650  4▼aBiology.
■650  4▼aPharmaceutical  sciences.
■653    ▼aCancer
■653    ▼aImmunotherapy
■653    ▼aVirus-like  particle
■653    ▼aVidutolimod
■653    ▼aAnti-Qβ-coated
■690    ▼a0982
■690    ▼a0379
■690    ▼a0410
■690    ▼a0306
■690    ▼a0572
■71020▼aThe  University  of  Iowa▼bBiomedical  Science.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0096
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16931911▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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