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Macrophage Modulation of Inflammation-Driven Painful Intervertebral Disc Degeneration
Macrophage Modulation of Inflammation-Driven Painful Intervertebral Disc Degeneration
Macrophage Modulation of Inflammation-Driven Painful Intervertebral Disc Degeneration

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211152942
ISBN  
9798384493051
DDC  
610
저자명  
Lisiewski, Lauren Elizabeth.
서명/저자  
Macrophage Modulation of Inflammation-Driven Painful Intervertebral Disc Degeneration
발행사항  
[Sl] : Columbia University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
236 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Chahine, Nadeen O.;Hung, Clark T.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2024.
초록/해제  
요약Low back pain (LBP) is the leading cause of disability globally and is most commonly associated with pathologies of the intervertebral disc (IVD), including spinal stenosis, disc herniation, and IVD degeneration. IVD cells within the local degenerative disc environment are known to produce abundant inflammatory cytokines and chemokines, leading to recruitment of immune cells, such as macrophages. The presence of both IVD cells and macrophages in the pro-inflammatory microenvironment further exacerbates the degenerative cascade, leading to production of additional inflammatory cytokines and catabolic enzymes that compromise the IVD ECM structural integrity. However, the individual contributions of IVD cells and macrophages on degeneration, as well as the impact of crosstalk between the cell types remains unknown.A systemic inflammatory response is also common in cases of chronic LBP, defined as lasting longer than 3 months. While systemic inflammation in the serum of patients with LBP has been widely observed in comparison to healthy controls, the impact of pain and disability severity on systemic inflammation has not been determined. Additionally, both the local and systemic inflammatory responses associated with IVD injury and LBP have been characterized independently; however, the connection between these responses and their role in the progression of pain has not been studied. This thesis addresses these questions through a variety of methodologies including characterization of clinical samples, in vivo injury modeling, and an in vitro co-culture system.First, transcriptomic analysis of whole blood from patients with chronic LBP and spine pathologies was performed to determine the signaling mechanisms contributing to pain and disability severity systemically. Circulating immune cell senescence, and decreased complement activation and Type I interferon signaling were shown to contribute to greater severity of disability in patients with LBP.Next, an inflammation-driven in vivo injury model utilizing intradiscal injection of the inflammatory stimulus, lipopolysaccharide (LPS), was developed to investigate the role of local inflammation in the progression of IVD degeneration. Intradiscal inflammatory stimulation increased degeneration, macrophage infiltration, and innervation, ultimately leading to a pain phenotype. RNA sequencing analysis of the AF and whole blood after injection was also performed to determine signaling mechanisms mediating the local and systemic inflammatory responses. Type I interferon signaling was commonly upregulated in both the AF and blood, indicating a direct connection between local and systemic inflammation. Additionally, an inverse relationship between the complement activation and neuronal signaling pathways provides an interesting parallel with the relationship observed between the complement system and disability severity clinically.An in vitro macrophage-IVD explant co-culture model was also created to gain understanding of the contributions of macrophages in the inflammatory microenvironment of the degenerating IVD. Using a transwell system limiting communication to paracrine signaling, pro-inflammatory M1 macrophages were shown to have detrimental effects increasing inflammation, while M2 macrophage were protective, decreasing production of inflammatory cytokines. Inflammatory-stimulated IVDs also polarized M0 macrophages towards an M1-like phenotype, further exacerbating inflammation and degradation.Taken together, this thesis indicates a key role for macrophages in the modulation of the local inflammatory environment. Local inflammation severity also directly regulates the systemic inflammatory response, contributing to a pain phenotype. Finally, in cases of chronic LBP clinically, systemic inflammation is dependent on pain and disability severity.
일반주제명  
Biomedical engineering
일반주제명  
Physiology
일반주제명  
Immunology
키워드  
Injury modeling
키워드  
Intervertebral disc
키워드  
Macrophage
키워드  
Orthopedics
키워드  
Low back pain
키워드  
Disc herniation
기타저자  
Columbia University Biomedical Engineering
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
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MARC

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■0820  ▼a610
■1001  ▼aLisiewski,  Lauren  Elizabeth.
■24510▼aMacrophage  Modulation  of  Inflammation-Driven  Painful  Intervertebral  Disc  Degeneration
■260    ▼a[Sl]▼bColumbia  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a236  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Chahine,  Nadeen  O.;Hung,  Clark  T.
■5021  ▼aThesis  (Ph.D.)--Columbia  University,  2024.
■520    ▼aLow  back  pain  (LBP)  is  the  leading  cause  of  disability  globally  and  is  most  commonly  associated  with  pathologies  of  the  intervertebral  disc  (IVD),  including  spinal  stenosis,  disc  herniation,  and  IVD  degeneration.  IVD  cells  within  the  local  degenerative  disc  environment  are  known  to  produce  abundant  inflammatory  cytokines  and  chemokines,  leading  to  recruitment  of  immune  cells,  such  as  macrophages.  The  presence  of  both  IVD  cells  and  macrophages  in  the  pro-inflammatory  microenvironment  further  exacerbates  the  degenerative  cascade,  leading  to  production  of  additional  inflammatory  cytokines  and  catabolic  enzymes  that  compromise  the  IVD  ECM  structural  integrity.  However,  the  individual  contributions  of  IVD  cells  and  macrophages  on  degeneration,  as  well  as  the  impact  of  crosstalk  between  the  cell  types  remains  unknown.A  systemic  inflammatory  response  is  also  common  in  cases  of  chronic  LBP,  defined  as  lasting  longer  than  3  months.  While  systemic  inflammation  in  the  serum  of  patients  with  LBP  has  been  widely  observed  in  comparison  to  healthy  controls,  the  impact  of  pain  and  disability  severity  on  systemic  inflammation  has  not  been  determined.  Additionally,  both  the  local  and  systemic  inflammatory  responses  associated  with  IVD  injury  and  LBP  have  been  characterized  independently;  however,  the  connection  between  these  responses  and  their  role  in  the  progression  of  pain  has  not  been  studied.  This  thesis  addresses  these  questions  through  a  variety  of  methodologies  including  characterization  of  clinical  samples,  in  vivo  injury  modeling,  and  an  in  vitro  co-culture  system.First,  transcriptomic  analysis  of  whole  blood  from  patients  with  chronic  LBP  and  spine  pathologies  was  performed  to  determine  the  signaling  mechanisms  contributing  to  pain  and  disability  severity  systemically.  Circulating  immune  cell  senescence,  and  decreased  complement  activation  and  Type  I  interferon  signaling  were  shown  to  contribute  to  greater  severity  of  disability  in  patients  with  LBP.Next,  an  inflammation-driven  in  vivo  injury  model  utilizing  intradiscal  injection  of  the  inflammatory  stimulus,  lipopolysaccharide  (LPS),  was  developed  to  investigate  the  role  of  local  inflammation  in  the  progression  of  IVD  degeneration.  Intradiscal  inflammatory  stimulation  increased  degeneration,  macrophage  infiltration,  and  innervation,  ultimately  leading  to  a  pain  phenotype.  RNA  sequencing  analysis  of  the  AF  and  whole  blood  after  injection  was  also  performed  to  determine  signaling  mechanisms  mediating  the  local  and  systemic  inflammatory  responses.  Type  I  interferon  signaling  was  commonly  upregulated  in  both  the  AF  and  blood,  indicating  a  direct  connection  between  local  and  systemic  inflammation.  Additionally,  an  inverse  relationship  between  the  complement  activation  and  neuronal  signaling  pathways  provides  an  interesting  parallel  with  the  relationship  observed  between  the  complement  system  and  disability  severity  clinically.An  in  vitro  macrophage-IVD  explant  co-culture  model  was  also  created  to  gain  understanding  of  the  contributions  of  macrophages  in  the  inflammatory  microenvironment  of  the  degenerating  IVD.  Using  a  transwell  system  limiting  communication  to  paracrine  signaling,  pro-inflammatory  M1  macrophages  were  shown  to  have  detrimental  effects  increasing  inflammation,  while  M2  macrophage  were  protective,  decreasing  production  of  inflammatory  cytokines.  Inflammatory-stimulated  IVDs  also  polarized  M0  macrophages  towards  an  M1-like  phenotype,  further  exacerbating  inflammation  and  degradation.Taken  together,  this  thesis  indicates  a  key  role  for  macrophages  in  the  modulation  of  the  local  inflammatory  environment.  Local  inflammation  severity  also  directly  regulates  the  systemic  inflammatory  response,  contributing  to  a  pain  phenotype.  Finally,  in  cases  of  chronic  LBP  clinically,  systemic  inflammation  is  dependent  on  pain  and  disability  severity.
■590    ▼aSchool  code:  0054.
■650  4▼aBiomedical  engineering
■650  4▼aPhysiology
■650  4▼aImmunology
■653    ▼aInjury  modeling
■653    ▼aIntervertebral  disc
■653    ▼aMacrophage
■653    ▼aOrthopedics
■653    ▼aLow  back  pain
■653    ▼aDisc  herniation
■690    ▼a0541
■690    ▼a0982
■690    ▼a0719
■71020▼aColumbia  University▼bBiomedical  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0054
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164275▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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