EZH2 inhibitors as endoprosthetic device coatings that induce osteogenesis and promote implant osseointegration
EZH2 抑制剂作为内置假体装置涂层,可诱导成骨并促进种植体骨整合
基本信息
- 批准号:9464548
- 负责人:
- 金额:$ 22.49万
- 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
- 起止时间:2017-09-13 至 2019-08-31
- 项目状态:已结题
- 来源:
- 关键词:AcidityAdipocytesAdipose tissueAntineoplastic AgentsBiochemicalBiological AssayBiological MarkersBiomimeticsBlood VesselsBone DiseasesBone GrowthBone MatrixCatalytic DomainChondrocytesClinicComplexCultured CellsDental ImplantsDevelopmentDevicesDimensionsDrug DesignEZH2 geneEnhancersEnzymesEpigenetic ProcessExposure toFeasibility StudiesFracture HealingGenesGoalsGrowthHomologous GeneHumanHydroxyapatitesImpairmentImplantIn VitroJoint repairKineticsKnowledgeLaboratoriesLeadLigandsLimb structureLongevityMeasuresMesenchymal DifferentiationMesenchymal Stem CellsModelingModificationMyelosuppressionOperative Surgical ProceduresOralOrthopedicsOsseointegrationOsteoblastsOsteogenesisOsteopeniaOsteoporosisPatientsPenetrationPharmaceutical PreparationsPhasePlayPolycombPrecipitationPreparationProceduresPropertyReplacement ArthroplastyResearchResearch Project GrantsRiskSafetySignal PathwaySignal TransductionSkeletal DevelopmentSmall Business Innovation Research GrantSolubilityStaining methodStainsStromal CellsTherapeuticTissuesTitaniumToxic effectWorkaging populationalkalinityanalogbasebeta cateninbonecancer therapycost effectivedesigndrug candidatedrug discoveryexperiencehistone methyltransferaseimplant coatingimprovedin vivoinhibitor/antagonistinterestknock-downnovelnovel therapeutic interventionosteogenicosteosarcomapreventprogramsscaffoldsmall moleculesmall molecule inhibitorsurface coating
项目摘要
Project Summary/Abstract
With an aging population and increased life span, the number of patients requiring reconstructive joint
surgeries or joint replacements continues to increase. Many patients undergoing arthroplasty procedures
suffer from bone disorders such as osteoporosis, severe arthrosis or osteopenia, with a bony matrix that
impedes firm anchoring of implants to existing bone. This results in poor implant osseointegration and aseptic
loosening, and requires revision surgeries in many patients. The need and opportunity exists for new
therapeutic strategies that improve bone-implant contact and device osseointegration.
The objective of the proposed project is to discover small molecule inhibitors of the histone methyltransferase
enhancer of zeste homolog 2 (EZH2) that can be incorporated in the surface coating of a model titanium
device substrate. Upon release from the substrate, these compounds will stimulate osteogenic differentiation
of mesenchymal stem cells (MSCs) at the device/tissue interface, promoting bone growth and device
osseointegration. Dr. Andre van Wijnen of Mayo Clinic and others have demonstrated that EZH2 inhibitors
stimulate bone formation by decreasing epigenetic inhibition of the Wnt/β-catenin signaling pathway. The
research described in the current proposal will demonstrate that EZH2 inhibitors, when incorporated into
hydroxyapatite surface coatings of titanium disks, will enhance osteogenic differentiation of human MSCs
cultured on the disks as measured by relevant biomarkers and immunohistochemical staining.
Successful completion of this Phase I SBIR feasibility study will form the basis for a program directed at the
development of a drug/device combination product that will greatly enhance implant osseointegration, reduce
the need for revision surgeries, and be convenient and cost effective with respect to manufacturing and
preparations required by surgical staff. Relative to orally or parenterally administered compounds, local
delivery of bone pro-anabolic EZH2 inhibitors at the device/tissue interface will minimize systemic exposure
and toxicity, specifically myelosuppression observed for EZH2 inhibitors currently in development for the
treatment of cancer.
The project leverages the complementary knowledge and capabilities of Numerate, Inc. and Dr. van Wijnen’s
laboratory. Dr. van Wijnen has extensively characterized the effects of EZH2 inhibition on bone formation, and
has significant experience with assays that assess growth and integration of MSCs with titanium device
substrates. Numerate’s team is experienced in small molecule drug discovery and development, and will apply
its ligand-based, AI-driven small molecule drug design platform to the design and optimization of EZH2
inhibitors for use in coated orthopedic implants.
项目摘要/摘要
人口老龄化和寿命增加,需要重建关节的患者人数
手术或关节置换次数继续增加。许多接受关节置换手术的患者
患有骨质疏松症,严重关节炎或骨质减少症等骨骼疾病,并具有骨基质
阻碍了固定在现有骨骼上的公司。这会导致不良的锁骨结构和敏捷性
放松,需要许多患者的修订手术。新的需求和机会存在
改善骨植入术接触和装置骨整合的治疗策略。
拟议项目的目的是发现组蛋白甲基转移酶的小分子抑制剂
Zeste同源2(EZH2)的增强剂,可以掺入模型钛的表面涂层
设备基材。从底物释放后,这些化合物将刺激成骨分化
在设备/组织界面处的间充质干细胞(MSC)的of,促进骨骼生长和装置
骨整合。 Mayo Clinic的Andre van Wijnen博士和其他人证明了EZH2抑制剂
通过减少对Wnt/β-catenin信号通路的表观遗传抑制来刺激骨形成。这
当前建议中描述的研究将表明,将EZH2抑制剂纳入
钛圆盘的羟基磷灰石表面涂层将增强人MSC的成骨分化
通过相关的生物标志物和免疫组织化学染色测量在磁盘上培养。
成功完成此阶段I SBIR可行性研究将构成针对该计划的基础
开发将大大增强植入物骨整合的药物/设备组合产品
需要修订手术,并且在制造业方面方便和成本效益
手术人员要求的准备工作。相对于口服或肠胃外施用的化合物,本地化合物
在设备/组织接口处的骨促苯甲酸EZH2抑制剂的输送将最大程度地降低全身暴露
和毒性,特别是目前正在开发的EZH2抑制剂的骨髓抑制
癌症的治疗。
该项目利用了Numerate,Inc。和Van Wijnen博士的完整知识和能力
实验室。 Van Wijnen博士已广泛地表征了EZH2抑制对骨形成的影响,并且
在评估增长和与钛设备的评估增长和整合的测定方面具有丰富的经验
基材。 Numerate的团队在小分子药物发现和开发方面都有经验,并将适用
其基于配体的AI驱动的小分子药物设计平台,用于EZH2的设计和优化
用于涂层骨科植入物的抑制剂。
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(0)
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Uwe Klein其他文献
Uwe Klein的其他文献
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{{ item.author }}
{{ truncateString('Uwe Klein', 18)}}的其他基金
Peripherally restricted α2/δ-1 subunit ligands that modulate CaV channel gating as novel antiarrhythmic drugs
外周限制的α2/β-1亚基配体作为新型抗心律失常药物调节CaV通道门控
- 批准号:
9406676 - 财政年份:2017
- 资助金额:
$ 22.49万 - 项目类别:
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