Identification of Novel Bioactive Lipid Metabolites for Predicting Liver-related Outcomes in Persons Co-Infected with HIV and HCV
Identification of Novel Bioactive Lipid Metabolites for Predicting Liver-related Outcomes in Persons Co-Infected with HIV and HCV
批准号:
9241700
负责人:
Susanna Naggie
金额:
$40.02万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2017
资助国家:
美国
项目状态:
已结题
起止时间:
2017-03-15 至 2022-02-28
关键词:
AddressAmericanAnti-Retroviral AgentsAntiviral AgentsAntiviral TherapyAssessment toolCellsCeramidesCessation of lifeChronic Hepatitis CCirrhosisClinicalCohort StudiesDataDevelopmentDiseaseDisease ProgressionEicosanoidsEtiologyEventFibrosisFutureGoalsHIVHIV InfectionsHIV/HCVHealthHepaticHepatic FibrogenesisHepatitis CHepatitis C co-infectionHomeostasisIndividualInfectionKnowledgeLipidsLiteratureLiverLiver FibrosisLiver diseasesLongitudinal cohort studyMediatingMetabolicModelingModificationMono-SMorbidity - disease rateNatureOutcomePathogenesisPathway interactionsPatientsPatternPersonsPlayPopulationPrimary carcinoma of the liver cellsRegimenReportingResearch DesignSeverity of illnessSphingomyelinsTestingToxic effectUnited StatesValidationVariantViralVirusWorkacylcarnitineadverse outcomebasebiobankco-infectioncohortdisorder riskexperiencefibrogenesishuman diseaseimprovedlipid metabolismliver developmentliver injurymortalitynon-alcoholic fatty livernonalcoholic steatohepatitisnoveltherapeutic targettool
中文摘要
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英文摘要
PROJECT SUMMARY/ABSTRACT
Our long-term goal is to identify bioactive lipid metabolites that are dysregulated in HIV-infected individuals and
to gain a fundamental understanding of these lipid metabolites in liver disease pathogenesis and the
development of liver-related complications. The overall objective is to utilize HIV/HCV-coinfection as a model to
probe for underlying mechanisms of accelerated liver fibrosis and disease progression with the overall premise
that there is a common final pathway of liver injury that is metabolic in nature. Our central hypothesis is that
dysregulation of bioactive lipid metabolism reports on a common mechanism by which HIV-infection,
antiretrovirals, and viral co-infections interact to modulate fibrogenesis. Based on evidence that HCV dramatically
modulates host cell lipid metabolism and HIV-infection and antiretrovirals also perturb lipid pathways, we propose
that accelerated fibrogenesis in HIV is due, at least in part, to additive hits on lipid metabolism and excess
accumulation of detrimental lipid metabolites, like ceramide. Thus, we used a multi-targeted lipidomics platform
to investigate bioactive lipids as predictors of liver fibrosis stage. Our preliminary studies indicate that (1)
expression of bioactive lipids correlates with histopathologic stage of liver disease in patients with HIV/HCV and
HCV infections, and (2) clearance of HCV using DAA regimens results in rapid changes in lipid homeostasis
pathways. The proposed work will test our hypothesis that dysregulation of bioactive lipid metabolism in HIV-
infection plays a key role in progressive liver disease, as well as the corollary hypothesis that variations in lipid
expression can be used as noninvasive assessments of liver disease complications. We will accomplish the
objective of the application by pursuing the following Specific Aims: (1) Discover and validate specific expression
patterns of circulating bioactive lipid metabolites that are predictive of end-stage liver disease complications in
patients with HIV/HCV-coinfection;; (2) Determine unique patterns of circulating bioactive lipid metabolite
expression for patients with HIV-infection including those with and without HCV co-infection and non-virally
mediated metabolic liver disease (NAFLD/NASH);; (3) Identify specific bioactive lipid metabolite expression that
is modified by DAA treatment-induced HCV clearance and statin initiation in HIV/HCV co-infected patients. The
impact of this proposal will be to fundamentally change our understanding of the metabolic mechanisms of liver
disease in people living with HIV. We will develop a novel, noninvasive assessment of end-stage liver disease
complications that will have immediate clinical utility. We will also apply this validated, noninvasive metabolite
profile as a tool to dissect lipid dysregulation related to HCV infection and other etiologies of liver disease
including HIV persistence and long-term antiretroviral toxicity which could inform future mechanistic studies and
identify potential therapeutic targets of fibrogenesis.
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Moving Towards More Individualized Therapies in HIV/HCV Co-infected Patients
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批准号:8691714
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项目类别:
-
资助金额:$8.87万
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财政年份:2011
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负责人:Susanna Naggie
-
依托单位:
Moving Towards More Individualized Therapies in HIV/HCV Co-infected Patients
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批准号:8293010
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项目类别:
-
资助金额:$8.87万
-
财政年份:2011
-
负责人:Susanna Naggie
-
依托单位:
Moving Towards More Individualized Therapies in HIV/HCV Co-infected Patients
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批准号:8487353
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项目类别:
-
资助金额:$8.87万
-
财政年份:2011
-
负责人:Susanna Naggie
-
依托单位:
Moving Towards More Individualized Therapies in HIV/HCV Co-infected Patients
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批准号:8207717
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项目类别:
-
资助金额:$8.87万
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财政年份:2011
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负责人:Susanna Naggie
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依托单位:
Centers for AIDS Research (CFAR)
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批准号:10673760
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项目类别:
-
资助金额:$279.89万
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财政年份:2005
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负责人:Susanna Naggie
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依托单位:
海外基金