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Infectious and Hemorrhagic Hydrocephalus Share Molecular Mechanism Sensitive to Immune Modulation.
Infectious and Hemorrhagic Hydrocephalus Share Molecular Mechanism Sensitive to Immune Modulation.

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자료유형  
 학위논문
Control Number  
0017160757
International Standard Book Number  
9798382321677
Dewey Decimal Classification Number  
610
Main Entry-Personal Name  
Reeves, Benjamin C.
Publication, Distribution, etc. (Imprint  
[S.l.] : Yale University., 2024
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Physical Description  
96 p.
General Note  
Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
General Note  
Advisor: Diluna, Michael L.
Dissertation Note  
Thesis (M.D.)--Yale University, 2024.
Summary, Etc.  
요약Hydrocephalus, characterized by a pathologic dilation of the brain's cerebrospinal fluid (CSF)-filled ventricles, may either be primary or acquired. Acquired hydrocephalus, most often caused by ventricular infection or hemorrhage, is currently treated by surgical CSF diversion with either a shunt or endoscopic third ventriculostomy - two procedures plagued by high failure and complication rates. The lack of pharmaceutical treatments is in part due to the obscure pathophysiology of the disease. We created novel rat models of post-infectious (PIH) and post-hemorrhagic hydrocephalus (PHH) and conducted a systems-level, multi-omics investigation of these animals to outline the cellular, molecular, and physiologic pathology of PIH and PHH, with the ultimate goal being to discover an effective pharmacological intervention.SPAK and toll like receptor 4 (TLR4) knockout (KO) rats were generated using Crispr/CAS9 genome editing. A catheter was implanted into the lateral ventricles of adult male rats; E. coli+/-LPS, LPS, autologous blood, or artificial CSF (aCSF) was administered over 48-72h. Ventricular size was determined either by volumetric analysis of serial images or MRI, and CSF secretion was measured by catheter placement into the lateral ventricle. Choroid plexus (ChP) was harvested for immunohistochemistry (IHC), quantitative polymerase chain reaction (qPCR) analysis, flow cytometry, genomic/proteomic examination, and single-cell RNA sequencing (scRNAseq). Additional proteins of interest were identified through liquid chromatography/dual mass spectroscopy (LC-MS/MS) analysis of purified protein complexes from digested ChP tissue; candidates were validated by WB/IHC. CSF cytokine analysis was performed by Eve Technologies.Intracerebroventricular (ICV) hemorrhage or infection with E. coli+LPS or LPS alone triggers a TLR4-dependent immune response at the ChP-CSF interface. The resulting CSF pro-inflammatory "cytokine storm", elicited from peripherally-derived and border-associated ChP macrophages, caused an increase in CSF production from the ChP epithelium via phospho-activation of the tumor necrosis factor (TNF) receptor-associated kinase SPAK, which acts as regulatory scaffold for a multi-ion transporter protein complex comprised of the NKCC1, the alpha-1 subunit of the Na/K ATPase, KCNJ13, CLIC6, WNK1, and AQP1. Genetic KO of TLR4 or SPAK in rats, as well as pharmacological immunosuppression with rapamycin, prevents PIH and PHH by antagonizing the ChP inflammation that causes SPAK-dependent CSF hypersecretion.These results expand our understanding of ChP immune-epithelial cell crosstalk and reframe PIH and PHH, which are historically known as diseases of impaired CSF flow through the ventricular system, as related neuroinflammatory disorders sensitive to immunomodulation. Such findings may reduce the need for invasive, surgical CSF diversion procedures.
Subject Added Entry-Topical Term  
Medicine.
Subject Added Entry-Topical Term  
Health sciences.
Subject Added Entry-Topical Term  
Neurosciences.
Index Term-Uncontrolled  
Hydrocephalus
Index Term-Uncontrolled  
Post-hemorrhagic hydrocephalus
Index Term-Uncontrolled  
Immune modulation
Index Term-Uncontrolled  
Pharmacological intervention
Index Term-Uncontrolled  
Choroid plexus
Added Entry-Corporate Name  
Yale University Yale School of Medicine
Host Item Entry  
Dissertations Abstracts International. 85-11B.
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:656642

MARC

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■0820  ▼a610
■1001  ▼aReeves,  Benjamin  C.
■24510▼aInfectious  and  Hemorrhagic  Hydrocephalus  Share  Molecular  Mechanism  Sensitive  to  Immune  Modulation.
■260    ▼a[S.l.]▼bYale  University.  ▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a96  p.
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-11,  Section:  B.
■500    ▼aAdvisor:  Diluna,  Michael  L.
■5021  ▼aThesis  (M.D.)--Yale  University,  2024.
■520    ▼aHydrocephalus,  characterized  by  a  pathologic  dilation  of  the  brain's  cerebrospinal  fluid  (CSF)-filled  ventricles,  may  either  be  primary  or  acquired.  Acquired  hydrocephalus,  most  often  caused  by  ventricular  infection  or  hemorrhage,  is  currently  treated  by  surgical  CSF  diversion  with  either  a  shunt  or  endoscopic  third  ventriculostomy  -  two  procedures  plagued  by  high  failure  and  complication  rates.  The  lack  of  pharmaceutical  treatments  is  in  part  due  to  the  obscure  pathophysiology  of  the  disease.  We  created  novel  rat  models  of  post-infectious  (PIH)  and  post-hemorrhagic  hydrocephalus  (PHH)  and  conducted  a  systems-level,  multi-omics  investigation  of  these  animals  to  outline  the  cellular,  molecular,  and  physiologic  pathology  of  PIH  and  PHH,  with  the  ultimate  goal  being  to  discover  an  effective  pharmacological  intervention.SPAK  and  toll  like  receptor  4  (TLR4)  knockout  (KO)  rats  were  generated  using  Crispr/CAS9  genome  editing.  A  catheter  was  implanted  into  the  lateral  ventricles  of  adult  male  rats;  E.  coli+/-LPS,  LPS,  autologous  blood,  or  artificial  CSF  (aCSF)  was  administered  over  48-72h.  Ventricular  size  was  determined  either  by  volumetric  analysis  of  serial  images  or  MRI,  and  CSF  secretion  was  measured  by  catheter  placement  into  the  lateral  ventricle.  Choroid  plexus  (ChP)  was  harvested  for  immunohistochemistry  (IHC),  quantitative  polymerase  chain  reaction  (qPCR)  analysis,  flow  cytometry,  genomic/proteomic  examination,  and  single-cell  RNA  sequencing  (scRNAseq).  Additional  proteins  of  interest  were  identified  through  liquid  chromatography/dual  mass  spectroscopy  (LC-MS/MS)  analysis  of  purified  protein  complexes  from  digested  ChP  tissue;  candidates  were  validated  by  WB/IHC.  CSF  cytokine  analysis  was  performed  by  Eve  Technologies.Intracerebroventricular  (ICV)  hemorrhage  or  infection  with  E.  coli+LPS  or  LPS  alone  triggers  a  TLR4-dependent  immune  response  at  the  ChP-CSF  interface.  The  resulting  CSF  pro-inflammatory  "cytokine  storm",  elicited  from  peripherally-derived  and  border-associated  ChP  macrophages,  caused  an  increase  in  CSF  production  from  the  ChP  epithelium  via  phospho-activation  of  the  tumor  necrosis  factor  (TNF)  receptor-associated  kinase  SPAK,  which  acts  as  regulatory  scaffold  for  a  multi-ion  transporter  protein  complex  comprised  of  the  NKCC1,  the  alpha-1  subunit  of  the  Na/K  ATPase,  KCNJ13,  CLIC6,  WNK1,  and  AQP1.  Genetic  KO  of  TLR4  or  SPAK  in  rats,  as  well  as  pharmacological  immunosuppression  with  rapamycin,  prevents  PIH  and  PHH  by  antagonizing  the  ChP  inflammation  that  causes  SPAK-dependent  CSF  hypersecretion.These  results  expand  our  understanding  of  ChP  immune-epithelial  cell  crosstalk  and  reframe  PIH  and  PHH,  which  are  historically  known  as  diseases  of  impaired  CSF  flow  through  the  ventricular  system,  as  related  neuroinflammatory  disorders  sensitive  to  immunomodulation.  Such  findings  may  reduce  the  need  for  invasive,  surgical  CSF  diversion  procedures.
■590    ▼aSchool  code:  0265.
■650  4▼aMedicine.
■650  4▼aHealth  sciences.
■650  4▼aNeurosciences.
■653    ▼aHydrocephalus
■653    ▼aPost-hemorrhagic  hydrocephalus
■653    ▼aImmune  modulation
■653    ▼aPharmacological  intervention
■653    ▼aChoroid  plexus
■690    ▼a0564
■690    ▼a0566
■690    ▼a0317
■71020▼aYale  University▼bYale  School  of  Medicine.
■7730  ▼tDissertations  Abstracts  International▼g85-11B.
■790    ▼a0265
■791    ▼aM.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160757▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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