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Diagnostic and Prognostic Profiling of Infectious Diseases Through Multiplexed Protein Assays
Diagnostic and Prognostic Profiling of Infectious Diseases Through Multiplexed Protein Ass...
Diagnostic and Prognostic Profiling of Infectious Diseases Through Multiplexed Protein Assays

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211152051
ISBN  
9798382738321
DDC  
540
저자명  
Meserve, Krista.
서명/저자  
Diagnostic and Prognostic Profiling of Infectious Diseases Through Multiplexed Protein Assays
발행사항  
[Sl] : University of Michigan, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
459 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
주기사항  
Advisor: Bailey, Ryan Castle.
학위논문주기  
Thesis (Ph.D.)--University of Michigan, 2024.
초록/해제  
요약Laboratory-based biomarkers can indicate that normal biologic functions, pathogenic processes, or immunologic responses have occurred. Diagnostic biomarkers are used diagnose patients with a specific disease or condition, while prognostic biomarkers provide information on disease progression, recurrence, or adverse outcome. Host inflammatory proteins, such as cytokines, can be employed as diagnostic and prognostic biomarkers; however, due to the complex nature of an inflammatory response, multi-biomarker signatures increase clinical utility. The need to identify and validate protein signatures for specific diseases is driving a need for analytical techniques amenable to multiplexed protein detection.This thesis applies silicon photonic microring resonators as a biomolecular sensing platform. The instrument and assay method are amenable for multiplexed detection of sixteen analytes in two samples simultaneously, using automated reagent handling and featuring a time-to-result of 45 minutes. Herein, I describe the development and application of multiplexed protein biomarker assays to diagnose and identify biomarker signatures for various infections. To improve rapid diagnostic approaches in the field of filoviral infection, we developed a two-plex biomarker assay for diagnosis of Zaire ebolavirus and Sudan ebolavirus infections using the pathogen-specific soluble glycoprotein (sGP). The sGP is a potential early diagnostic and prognostic biomarker of infection and, when coupled with the microring resonator assay, provide a fast, sensitive method for early Ebola infection diagnosis. The assay achieved limits of detection in the ng/mL range, exhibited no cross-reactivity, and successfully detected sGP in clinically relevant specimens (Chapter 2 and 3).Exploration of host inflammatory biomarker signatures was applied to expand the diagnostic and prognostic toolbox of neonatal conditions (Chapter 4) and tuberculosis infections (Chapters 5 and 6). We employed a seven-plex panel to temporally measure cytokine profiles in over sixty preterm neonates and identified altered cytokine trends in neonates exposed to inflammation in utero. Our work highlights the potential of longitudinal profiling studies to identify prognostic or monitoring biomarkers associated with infection status. Extending this multiplexed profiling approach to an infectious disease, we applied a fourteen-plex cytokine panel to profile over 500 QuantiFERON stimulated plasma samples from patients with latent tuberculosis infection (LTBI) with the goal of generating multi-biomarker signatures for LTBI diagnosis and disease reactivation prognosis. In comparing two independent patient cohorts, we showed a high overlap in important biomarkers, mainly IP-10, IL-2, and CCL8, towards classifying LTBI and high-risk of reactivation status. After merging cohorts to increase sample size, we uncovered a set of biomarkers capable of classifying LTBI status with 87% accuracy. Importantly, we identified a panel of biomarkers that can be used to stratify low versus high risk of reactivation and conclude that a group of eight host inflammatory protein biomarkers should be considered for future LTBI diagnostic platform development. Further analysis of multiplexed assay calibrations yielded insight into expected analyte- and sensor batch-related variability (Chapter 7). Targets IL-6, CCL3, and CCL8 were the most robust assays and should be used as comparisons for newly generated calibration curves.Taken together, the work presented in this thesis applies analytical techniques to clinically relevant challenges through rapidly detecting an early biomarker of Ebola virus  infection, monitoring immunological changes in preterm neonates, and identifying host immune biomarkers correlated to disease phase and reactivation risk in LTBI. The assays and biomarker signatures presented here have the potential to impact diagnosis, prognosis, and clinical management of infections and infectious diseases.
일반주제명  
Chemistry
일반주제명  
Molecular biology
일반주제명  
Biochemistry
일반주제명  
Immunology
키워드  
Multiplexed protein biomarker assays
키워드  
Microring resonator biosensing
키워드  
Ebolavirus
키워드  
Latent tuberculosis infection
키워드  
Infectious diseases
키워드  
Cytokine profiling
기타저자  
University of Michigan Chemistry
기본자료저록  
Dissertations Abstracts International. 85-12B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aMeserve,  Krista.
■24510▼aDiagnostic  and  Prognostic  Profiling  of  Infectious  Diseases  Through  Multiplexed  Protein  Assays
■260    ▼a[Sl]▼bUniversity  of  Michigan▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a459  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-12,  Section:  B.
■500    ▼aAdvisor:  Bailey,  Ryan  Castle.
■5021  ▼aThesis  (Ph.D.)--University  of  Michigan,  2024.
■520    ▼aLaboratory-based  biomarkers  can  indicate  that  normal  biologic  functions,  pathogenic  processes,  or  immunologic  responses  have  occurred.  Diagnostic  biomarkers  are  used  diagnose  patients  with  a  specific  disease  or  condition,  while  prognostic  biomarkers  provide  information  on  disease  progression,  recurrence,  or  adverse  outcome.  Host  inflammatory  proteins,  such  as  cytokines,  can  be  employed  as  diagnostic  and  prognostic  biomarkers;  however,  due  to  the  complex  nature  of  an  inflammatory  response,  multi-biomarker  signatures  increase  clinical  utility.  The  need  to  identify  and  validate  protein  signatures  for  specific  diseases  is  driving  a  need  for  analytical  techniques  amenable  to  multiplexed  protein  detection.This  thesis  applies  silicon  photonic  microring  resonators  as  a  biomolecular  sensing  platform.  The  instrument  and  assay  method  are  amenable  for  multiplexed  detection  of  sixteen  analytes  in  two  samples  simultaneously,  using  automated  reagent  handling  and  featuring  a  time-to-result  of  45  minutes.  Herein,  I  describe  the  development  and  application  of  multiplexed  protein  biomarker  assays  to  diagnose  and  identify  biomarker  signatures  for  various  infections.  To  improve  rapid  diagnostic  approaches  in  the  field  of  filoviral  infection,  we  developed  a  two-plex  biomarker  assay  for  diagnosis  of  Zaire  ebolavirus  and  Sudan  ebolavirus  infections  using  the  pathogen-specific  soluble  glycoprotein  (sGP).  The  sGP  is  a  potential  early  diagnostic  and  prognostic  biomarker  of  infection  and,  when  coupled  with  the  microring  resonator  assay,  provide  a  fast,  sensitive  method  for  early  Ebola  infection  diagnosis.  The  assay  achieved  limits  of  detection  in  the  ng/mL  range,  exhibited  no  cross-reactivity,  and  successfully  detected  sGP  in  clinically  relevant  specimens  (Chapter  2  and  3).Exploration  of  host  inflammatory  biomarker  signatures  was  applied  to  expand  the  diagnostic  and  prognostic  toolbox  of  neonatal  conditions  (Chapter  4)  and  tuberculosis  infections  (Chapters  5  and  6).  We  employed  a  seven-plex  panel  to  temporally  measure  cytokine  profiles  in  over  sixty  preterm  neonates  and  identified  altered  cytokine  trends  in  neonates  exposed  to  inflammation  in  utero.  Our  work  highlights  the  potential  of  longitudinal  profiling  studies  to  identify  prognostic  or  monitoring  biomarkers  associated  with  infection  status.  Extending  this  multiplexed  profiling  approach  to  an  infectious  disease,  we  applied  a  fourteen-plex  cytokine  panel  to  profile  over  500  QuantiFERON  stimulated  plasma  samples  from  patients  with  latent  tuberculosis  infection  (LTBI)  with  the  goal  of  generating  multi-biomarker  signatures  for  LTBI  diagnosis  and  disease  reactivation  prognosis.  In  comparing  two  independent  patient  cohorts,  we  showed  a  high  overlap  in  important  biomarkers,  mainly  IP-10,  IL-2,  and  CCL8,  towards  classifying  LTBI  and  high-risk  of  reactivation  status.  After  merging  cohorts  to  increase  sample  size,  we  uncovered  a  set  of  biomarkers  capable  of  classifying  LTBI  status  with  87%  accuracy.  Importantly,  we  identified  a  panel  of  biomarkers  that  can  be  used  to  stratify  low  versus  high  risk  of  reactivation  and  conclude  that  a  group  of  eight  host  inflammatory  protein  biomarkers  should  be  considered  for  future  LTBI  diagnostic  platform  development.  Further  analysis  of  multiplexed  assay  calibrations  yielded  insight  into  expected  analyte-  and  sensor  batch-related  variability  (Chapter  7).  Targets  IL-6,  CCL3,  and  CCL8  were  the  most  robust  assays  and  should  be  used  as  comparisons  for  newly  generated  calibration  curves.Taken  together,  the  work  presented  in  this  thesis  applies  analytical  techniques  to  clinically  relevant  challenges  through  rapidly  detecting  an  early  biomarker  of  Ebola  virus  infection,  monitoring  immunological  changes  in  preterm  neonates,  and  identifying  host  immune  biomarkers  correlated  to  disease  phase  and  reactivation  risk  in  LTBI.  The  assays  and  biomarker  signatures  presented  here  have  the  potential  to  impact  diagnosis,  prognosis,  and  clinical  management  of  infections  and  infectious  diseases.
■590    ▼aSchool  code:  0127.
■650  4▼aChemistry
■650  4▼aMolecular  biology
■650  4▼aBiochemistry
■650  4▼aImmunology
■653    ▼aMultiplexed  protein  biomarker  assays
■653    ▼aMicroring  resonator  biosensing
■653    ▼aEbolavirus
■653    ▼aLatent  tuberculosis  infection
■653    ▼aInfectious  diseases
■653    ▼aCytokine  profiling
■690    ▼a0485
■690    ▼a0982
■690    ▼a0487
■690    ▼a0307
■71020▼aUniversity  of  Michigan▼bChemistry.
■7730  ▼tDissertations  Abstracts  International▼g85-12B.
■790    ▼a0127
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162761▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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