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Drug Development for Antibiotic Resistant Lung Infection
Drug Development for Antibiotic Resistant Lung Infection
Drug Development for Antibiotic Resistant Lung Infection

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202103101
ISBN  
9798315741008
DDC  
615
저자명  
Krug, Samuel Alan.
서명/저자  
Drug Development for Antibiotic Resistant Lung Infection
발행사항  
[Sl] : University of Maryland, Baltimore, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
360 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
주기사항  
Advisor: Kane, Maureen A.
학위논문주기  
Thesis (Ph.D.)--University of Maryland, Baltimore, 2025.
초록/해제  
요약Multidrug-resistant pathogens (MDR) are a major threat to public health leading to chronic illness and prolonged hospital visits. The Center for Disease Control (CDC) estimates an additional $20 billion healthcare costs in the United States as a result MDR related illness. These infections can be life-threatening to immunocompromised patients and can be difficult to irradicate in a hospital setting. Despite the need for antibiotic development, the length of time required to fully bring a therapeutic to market coupled with the metabolic adaptability of MDR pathogens deters pharmaceutical companies from pursuing antibiotic related drug programs. The overall goal of this study was to characterize new therapeutic strategies for combating MDR related infections. Aim 1 focuses on Pseudomonas aeruginosa (Pa), which is a gram-negative opportunistic pathogen. Since iron is a key nutrient for Pa virulence, it was predicted that metallodrug and heme mimic gallium salophen (GaSal) would disrupt heme sensing and utilization, resulting in a bacteriostatic approach to combat infection. Work in Aim 1 contributes to understanding the role of heme metabolites biliverdin beta (BVIXβ) and biliverdin delta (BVIXδ) produced during Pa infection, characterizes relevant in vitro parameters related to drug development for a library of GaSal analogs, and finally assesses in vivo biodistribution and translatability of in vitro testing. Aim 2 shifts focus from pathogen to the host. All-trans retinoic acid (atRA), the main active metabolite of Vitamin A, is important for immune cell function and differentiation. Our lab has previously characterized an RAR gamma agonist to attenuate inflammation. The experiments in Aim 2 sought to determine how Vitamin A metabolism is disrupted during bacterial, viral, and fungal infection in the lung. In addition, we sought to investigate if there is potential dual utility to combat infection and abate inflammation by treating with RAR gamma agonist CD437.Overall, these studies further the understanding of targeting MDR pathogens while -also investigating the role that the host plays in the efficacy of antibiotics during infection.
일반주제명  
Pharmaceutical sciences
일반주제명  
Chemistry
일반주제명  
Biochemistry
일반주제명  
Pharmacology
키워드  
Drug development
키워드  
Liquid chromatograph mass spectrometry
키워드  
Lung infection
키워드  
Pseudomonas aeruginosa
키워드  
Targeted metabolomics
키워드  
Vitamin A
기타저자  
University of Maryland, Baltimore Pharmaceutical Sciences
기본자료저록  
Dissertations Abstracts International. 86-11B.
전자적 위치 및 접속  
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MARC

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■020    ▼a9798315741008
■035    ▼a(MiAaPQ)AAI31934269
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a615
■1001  ▼aKrug,  Samuel  Alan.
■24510▼aDrug  Development  for  Antibiotic  Resistant  Lung  Infection
■260    ▼a[Sl]▼bUniversity  of  Maryland,  Baltimore▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a360  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-11,  Section:  B.
■500    ▼aAdvisor:  Kane,  Maureen  A.
■5021  ▼aThesis  (Ph.D.)--University  of  Maryland,  Baltimore,  2025.
■520    ▼aMultidrug-resistant  pathogens  (MDR)  are  a  major  threat  to  public  health  leading  to  chronic  illness  and  prolonged  hospital  visits.  The  Center  for  Disease  Control  (CDC)  estimates  an  additional  $20  billion  healthcare  costs  in  the  United  States  as  a  result  MDR  related  illness.  These  infections  can  be  life-threatening  to  immunocompromised  patients  and  can  be  difficult  to  irradicate  in  a  hospital  setting.  Despite  the  need  for  antibiotic  development,  the  length  of  time  required  to  fully  bring  a  therapeutic  to  market  coupled  with  the  metabolic  adaptability  of  MDR  pathogens  deters  pharmaceutical  companies  from  pursuing  antibiotic  related  drug  programs.  The  overall  goal  of  this  study  was  to  characterize  new  therapeutic  strategies  for  combating  MDR  related  infections.  Aim  1  focuses  on  Pseudomonas  aeruginosa  (Pa),  which  is  a  gram-negative  opportunistic  pathogen.  Since  iron  is  a  key  nutrient  for  Pa  virulence,  it  was  predicted  that  metallodrug  and  heme  mimic  gallium  salophen  (GaSal)  would  disrupt  heme  sensing  and  utilization,  resulting  in  a  bacteriostatic  approach  to  combat  infection.  Work  in  Aim  1  contributes  to  understanding  the  role  of  heme  metabolites  biliverdin  beta  (BVIXβ)  and  biliverdin  delta  (BVIXδ)  produced  during  Pa  infection,  characterizes  relevant  in  vitro  parameters  related  to  drug  development  for  a  library  of  GaSal  analogs,  and  finally  assesses  in  vivo  biodistribution  and  translatability  of  in  vitro  testing.  Aim  2  shifts  focus  from  pathogen  to  the  host.  All-trans  retinoic  acid  (atRA),  the  main  active  metabolite  of  Vitamin  A,  is  important  for  immune  cell  function  and  differentiation.  Our  lab  has  previously  characterized  an  RAR  gamma  agonist  to  attenuate  inflammation.  The  experiments  in  Aim  2  sought  to  determine  how  Vitamin  A  metabolism  is  disrupted  during  bacterial,  viral,  and  fungal  infection  in  the  lung.  In  addition,  we  sought  to  investigate  if  there  is  potential  dual  utility  to  combat  infection  and  abate  inflammation  by  treating  with  RAR  gamma  agonist  CD437.Overall,  these  studies  further  the  understanding  of  targeting  MDR  pathogens  while  -also  investigating  the  role  that  the  host  plays  in  the  efficacy  of  antibiotics  during  infection.
■590    ▼aSchool  code:  0373.
■650  4▼aPharmaceutical  sciences
■650  4▼aChemistry
■650  4▼aBiochemistry
■650  4▼aPharmacology
■653    ▼aDrug  development
■653    ▼aLiquid  chromatograph  mass  spectrometry
■653    ▼aLung  infection
■653    ▼aPseudomonas  aeruginosa
■653    ▼aTargeted  metabolomics
■653    ▼aVitamin  A
■690    ▼a0572
■690    ▼a0485
■690    ▼a0487
■690    ▼a0419
■71020▼aUniversity  of  Maryland,  Baltimore▼bPharmaceutical  Sciences.
■7730  ▼tDissertations  Abstracts  International▼g86-11B.
■790    ▼a0373
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356920▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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