Targeting Lipid Metabolism in the Tumor Microenvironment
Targeting Lipid Metabolism in the Tumor Microenvironment
批准号:
10471233
负责人:
Ashani T Weeraratna
金额:
$16.14万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2008
资助国家:
美国
项目状态:
已结题
起止时间:
2008-04-01 至 2024-08-31
关键词:
AffectAgeAgingAntigen-Presenting CellsAutomobile DrivingBODIPYBRAF geneBinding ProteinsBone MarrowCarrier ProteinsCell DeathCellsCollaborationsComplexDataDendritic CellsEsterificationExposure toFASN geneFatty AcidsFibroblastsGenerationsGeneticGenetic TranscriptionGoalsGrowth FactorHumanImmuneImmune responseImmunosuppressionImmunotherapyIn VitroInsulinInvadedKnock-outKnockout MiceLigaseLinkLipid PeroxidationLipidsMAP Kinase GeneMEK inhibitionMEKsMaintenanceMediatingMelanoma CellMetabolicMitochondriaModelingMusMyeloid-derived suppressor cellsNADPH OxidasePTEN genePathologyPathway interactionsPatientsPeroxidasesPharmaceutical PreparationsPharmacologyPlayProcessPrognosisProteomicsRegulationResearchResistanceRoleSamplingSignal TransductionSiteStressTherapeuticTherapeutic EffectTriglyceridesTumor ImmunityVery Long Chain Fatty Acidageddesignerastinexperimental studyfatty acid elongasesimmune functionin vivoinhibitorlipid metabolismlipidomicslong chain fatty acidmelanomamouse modelneoplastic cellneutrophiloxidized lipidperoxidationpreventprogramsresponsetargeted treatmenttherapeutic targettherapy developmenttherapy resistanttranscriptomicstreatment responsetumortumor microenvironmenttumor-immune system interactionsuptake
中文摘要
项目摘要-项目1
我们以前的数据表明,老化的微环境会导致对靶向治疗的抵抗,
也可能影响免疫治疗的效果。 肿瘤细胞经历代谢重编程,
获得对BRAF/MEK抑制剂的抗性。 我们发现其中一个因素
阻力可能是脂质。 衰老或应激的成纤维细胞分泌脂质,这些脂质被黑色素瘤细胞摄取,
提高它们的入侵能力,抵抗靶向治疗。 这些基质诱导的变化也可以
影响免疫细胞。 树突状细胞(DC)是启动和维持免疫系统所必需的。
DC中的脂质积累和免疫应答降低了它们作为抗原呈递细胞的能力。 髓系
衍生的抑制细胞(MDSC)在调节抗肿瘤免疫中起主要作用。 这些细胞在
脂质代谢,它们积累并使用氧化脂质来增强它们抑制免疫的能力,
微环境 我们已经暗示脂肪酸(FA)转运蛋白2(FATP 2)在脂质积累,
肿瘤细胞和PMN-MDSC两者,表明TME的多个组分之间的复杂串扰。
我们建议确定脂质积累的机制和随后的功能后果,
肿瘤细胞和MDSC。 我们将评估MDSC中脂质积聚的治疗靶向作用,
在黑色素瘤模型中免疫应答的产生,以及肿瘤细胞的命运和对
靶向治疗
英文摘要
Project Summary – Project 1
Our previous data have shown that the aged microenvironment drives resistance to targeted therapy, and
may impact response to immunotherapy as well. Tumor cells undergo metabolic reprogramming in order to
acquire resistance to BRAF/MEK inhibitors. We have found that one of the contributing factors to this
resistance may be lipids. Aged or stressed fibroblasts secrete lipids, which are taken up by melanoma cells,
promoting their ability to invade, and resist targeted therapy. These stromally-induced changes can also
affect immune cells. Dendritic cells (DC) are required for the initiation and maintenance of immune
responses and lipid accumulation in DC decreases their ability to act as antigen presenting cells. Myeloid
derived suppressor cells (MDSCs) play a major role in regulation of antitumor immunity. These cells thrive on
lipid metabolism and they accumulate and use oxidized lipids to augment their ability to suppress the immune
microenvironment. We have implicated fatty acid (FA) transporter protein 2 (FATP2) in lipid accumulation by
both tumor cells and PMN-MDSC, suggesting a complex crosstalk between multiple components of the TME.
We propose to identify the mechanism and subsequent functional consequences of lipid accumulation in
tumor cells and MDSCs. We will evaluate the effect of therapeutic targeting of lipid accumulation in MDSCs
on the generation of immune responses in melanoma models, and on tumor cell fate and response to
targeted therapy.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Effect of the aged microenvironment on tumor dormancy
-
批准号:9324629
-
项目类别:
-
资助金额:$43.46万
-
财政年份:2017
-
负责人:Ashani T Weeraratna
-
依托单位:
Promotion of tumor invasion and pseudosenescence by the aging microenvironment
-
批准号:9046380
-
项目类别:
-
资助金额:$39.43万
-
财政年份:2014
-
负责人:Ashani T Weeraratna
-
依托单位:
Promotion of tumor invasion and pseudosenescence by the aging microenvironment
-
批准号:9379038
-
项目类别:
-
资助金额:$5.93万
-
财政年份:2014
-
负责人:Ashani T Weeraratna
-
依托单位:
Targeting Lipid Metabolism in the Tumor Microenvironment
-
批准号:10019498
-
项目类别:
-
资助金额:$44.64万
-
财政年份:2008
-
负责人:Ashani T Weeraratna
-
依托单位:
Targeting Lipid Metabolism in the Tumor Microenvironment
-
批准号:9791684
-
项目类别:
-
资助金额:$15.82万
-
财政年份:2008
-
负责人:Ashani T Weeraratna
-
依托单位:
Targeting Lipid Metabolism in the Tumor Microenvironment
-
批准号:10239038
-
项目类别:
-
资助金额:$15.69万
-
财政年份:2008
-
负责人:Ashani T Weeraratna
-
依托单位:
Targeting Lipid Metabolism in the Tumor Microenvironment
-
批准号:10705657
-
项目类别:
-
资助金额:$16.73万
-
财政年份:2008
-
负责人:Ashani T Weeraratna
-
依托单位:
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