HIFs and VEGF in sarcoma progression, metastasis, and radiation response
HIF 和 VEGF 在肉瘤进展、转移和放射反应中的作用
基本信息
- 批准号:8332256
- 负责人:
- 金额:$ 33.2万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2011
- 资助国家:美国
- 起止时间:2011-09-13 至 2016-07-31
- 项目状态:已结题
- 来源:
- 关键词:ARNT geneAffectAntibodiesApoptosisAutomobile DrivingBindingBiologicalBlood VesselsCell LineCell ProliferationClinicalComplexDNADevelopmentDiseaseDistant MetastasisDoseDoxorubicinEndothelial CellsGene TargetingGenesGenetic TranscriptionGenetically Engineered MouseGrowth Factor InhibitionHumanHypoxiaHypoxia Inducible FactorIn VitroLimb structureMalignant NeoplasmsMediatingMethodsModelingMolecularMusNeoadjuvant TherapyNeoplasm MetastasisNeoplasms in Vascular TissueOxygenPathway interactionsPatientsPersonsPharmaceutical PreparationsPhase II Clinical TrialsPhenotypePlayProteinsRadiationRadiation ToleranceRadiation therapyRecurrenceRegional DiseaseResearch ProposalsResistanceRoleSolid NeoplasmStagingTestingTherapeuticTissue SampleTreatment EfficacyTumor AngiogenesisTumor Cell InvasionTumor TissueUnited StatesVascular Endothelial Growth Factor AVascular Endothelial Growth FactorsVascular blood supplyXenograft procedurebasebevacizumabcytotoxicitydeprivationdesignhypoxia inducible factor 1lung sarcomameetingsmigrationmouse modeloverexpressionpreclinical studypreventradiation effectradiation resistanceresponsesarcomasoft tissuetumortumor growthtumor progressiontumorigenesis
项目摘要
DESCRIPTION (provided by applicant): Soft tissue sarcomas arise in nearly 10,000 persons in the United States each year, and about 40% of patients die of either loco-regional disease or distant metastasis. As sarcomas and other solid tumors outgrow their blood supply, hypoxia (or oxygen deprivation) stabilizes hypoxia inducible factors 1a and 2a (HIFs), which bind to ARNT (a.k.a. HIF-¿) and drive the expression of over 150 genes. These genes regulate) a variety of tumor phenotypes including tumor angiogenesis (or new blood vessel formation), invasion, and metastasis. Vascular endothelial growth factor (VEGF) is one of the genes controlled by HIFs and is also one of the most important factors driving tumor angiogenesis. HIFs and VEGF are overexpressed in human sarcomas, and increasing levels of these factors correlate with extent of disease and metastasis. HIFs and VEGF may also contribute to tumor resistance to radiation therapy. Numerous preclinical studies have found that anti-VEGF therapies can augment the effects of radiation therapy, and this synergistic effect was confirmed in a phase II clinical trial of neoadjuvant bevacizumab (an anti-VEGF antibody) and radiation therapy for sarcomas. The long-term objective of this proposal is to expand the use of agents targeting VEGF and HIFs in patients with sarcoma to reduce loco-regional recurrence and distant metastasis. Consequently, this proposal is designed to test the hypothesis that HIFs and VEGF play critical and interdependent roles in regulating sarcoma progression, metastasis, and radiation sensitivity. To test this hypothesis, this research proposal will (1) determine the role of HIFs in sarcomagenesis and metastasis, (2) determine the effects of VEGF inhibition on HIF activity, tumor invasion, and metastasis, and (3) determine the effects of HIF and VEGF inhibition on response of sarcomas to radiation. The methods of this proposal include analysis of sarcoma cell lines and primary endothelial cells in vitro, analysis of genetically engineered mouse models, and analysis of tumor tissue samples from sarcoma patients.
描述(由申请人提供):在美国每年有近10,000人出现软组织肉瘤,约40%的患者死于局部区域疾病或远处转移。随着肉瘤和其他实体肿瘤的生长超出其血液供应,缺氧(或缺氧)稳定了缺氧诱导因子1a和2a (HIF),它们与ARNT(又称HIF-¿)结合并驱动150多个基因的表达。这些基因调节多种肿瘤表型,包括肿瘤血管生成(或新血管形成)、侵袭和转移。血管内皮生长因子(Vascular endothelial growth factor, VEGF)是hfs控制的基因之一,也是肿瘤血管生成的重要驱动因子之一。hif和VEGF在人肉瘤中过度表达,这些因子水平的升高与疾病和转移的程度相关。hfs和VEGF也可能有助于肿瘤对放射治疗的抵抗。许多临床前研究发现,抗vegf治疗可以增强放疗的效果,这种协同作用在新辅助贝伐单抗(一种抗vegf抗体)和放疗治疗肉瘤的II期临床试验中得到证实。该提案的长期目标是扩大靶向VEGF和hfs的药物在肉瘤患者中的应用,以减少局部区域复发和远处转移。因此,本研究旨在验证hif和VEGF在调节肉瘤进展、转移和辐射敏感性中发挥关键和相互依赖作用的假设。为了验证这一假设,本研究计划将(1)确定HIF在肉瘤发生和转移中的作用,(2)确定VEGF抑制对HIF活性、肿瘤侵袭和转移的影响,(3)确定HIF和VEGF抑制对肿瘤放疗反应的影响。本建议的方法包括体外分析肉瘤细胞系和原代内皮细胞,分析基因工程小鼠模型,以及分析肉瘤患者的肿瘤组织样本。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(1)
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M. CELESTE SIMON其他文献
M. CELESTE SIMON的其他文献
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{{ truncateString('M. CELESTE SIMON', 18)}}的其他基金
Stromal and vascular inputs into pancreatic cancer tumor neighborhoods
胰腺癌肿瘤邻域的基质和血管输入
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10733718 - 财政年份:2023
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HIF-1alpha and FBP2 in sarcoma metabolism, progression, and metastasis
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9975793 - 财政年份:2017
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$ 33.2万 - 项目类别:
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9390182 - 财政年份:2017
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$ 33.2万 - 项目类别:
Metabolic Influences on Complex Tumor Neighborhoods
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- 批准号:
10737396 - 财政年份:2017
- 资助金额:
$ 33.2万 - 项目类别:
HIF-1alpha and FBP2 in sarcoma metabolism, progression, and metastasis
HIF-1α 和 FBP2 在肉瘤代谢、进展和转移中的作用
- 批准号:
10059906 - 财政年份:2017
- 资助金额:
$ 33.2万 - 项目类别:
Metabolic Tumor Suppressors in Renal Cancer: Unprecedented Roles in Disease Progression
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- 批准号:
10214558 - 财政年份:2017
- 资助金额:
$ 33.2万 - 项目类别:
Metabolic Tumor Suppressors in Renal Cancer: Unprecedented Roles in Disease Progression
肾癌中的代谢肿瘤抑制剂:在疾病进展中发挥前所未有的作用
- 批准号:
10456722 - 财政年份:2017
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$ 33.2万 - 项目类别:
HIF-1alpha and FBP2 in sarcoma metabolism, progression, and metastasis
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- 批准号:
10080711 - 财政年份:2017
- 资助金额:
$ 33.2万 - 项目类别:
HIFs and VEGF in sarcoma progression, metastasis, and radiation response
HIF 和 VEGF 在肉瘤进展、转移和放射反应中的作用
- 批准号:
8514541 - 财政年份:2011
- 资助金额:
$ 33.2万 - 项目类别:
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