EZH2 inhibitors as endoprosthetic device coatings that induce osteogenesis and promote implant osseointegration
EZH2 inhibitors as endoprosthetic device coatings that induce osteogenesis and promote implant osseointegration
批准号:
9464548
负责人:
Uwe Klein
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
项目状态:
已结题
起止时间:
2017-09-13 至 2019-08-31
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
中文摘要
项目摘要/摘要:
随着人口老龄化的加剧和寿命的延长,越来越多的患者需要重建和联合移植。
接受关节置换术或关节置换术的患者数量继续增加,许多患者正在接受关节成形术和手术。
患有严重的骨质疏松症、严重的关节病或骨量减少症等严重的骨质疏松症,以及严重的骨量减少。
阻碍种植体牢固地固定在现有的松质骨上。这会导致种植体骨整合能力差和无菌。
松动、松动和松动需要重新修改许多老年患者的手术方式,因为新的手术需要更多的机会和更多的机会。
治疗性医疗策略将改善植骨、接触和设备的骨整合。
该项目的主要目标是发现组蛋白甲基转移酶的小分子和抑制剂。
AZEST和同系物第二代增强剂(EZH2)表示,它可以直接加入到一种新型钛的表面处理涂层中。
设备与基板。当从基板上释放出细胞时,这些新化合物将不会刺激成骨细胞分化。
骨髓间充质干细胞(MSCs)在植入器/组织移植界面,促进骨组织生长和植入物。
骨整合。梅奥诊所的安德烈·范博士、维宁博士和其他人已经证明了EZH2是一种抑制剂。
通过减少Wnt/β-catenin信号通路的表观遗传学和抑制率来刺激骨形成。
研究人员在最新的提案中描述,如果将EZH2加入到药物中,将不会证明EZH2是一种抑制剂。
羟基磷灰石是钛盘的表面涂层,它将进一步增强人骨髓间充质干细胞的成骨分化能力。
通过相关生物标志物检测和免疫组织化学染色,检测培养皿上培养的细胞。
成功完成本项目第一阶段--SBIR项目的可行性研究工作,将为制定一项针对该项目的项目奠定基础。
开发一种新型药物/装置和产品组合,这将极大地增强种植体的骨整合,并减少
他们需要对手术进行更多的修改,不仅要方便,而且要具有成本效益,同时还要尊重现代制造技术和技术。
准备工作需要外科医生的帮助。他们的亲属需要口服或非肠道给药,以及当地医生。
在电子设备/组织界面上提供骨和促合成代谢的EZH2受体抑制剂,将不会将系统性风险暴露降至最低。
还有毒性,特别是骨髓抑制,观察到了EZH2受体抑制剂的毒性,这些抑制剂目前正在为该药物的开发工作。
癌症的治疗方法。
该项目充分利用了Numerate,Inc.和Dr.Van和Wijnen的优势互补的知识基础和能力基础。
他被广泛地描述了EZH2对骨形成、生长和发育的抑制作用。
在使用钛合金设备的情况下,拥有丰富的测试经验,可以评估MSCS的增长速度和集成能力。
底物。Numerate的研发团队在小分子药物的发现和开发方面经验丰富,并将继续适用。
其基于配体、人工智能驱动的小分子药物设计平台支持EZH2的整体设计和优化。
抑制剂主要用于涂层的整形外科植入物。
英文摘要
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.
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批准号:9406676
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项目类别:
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资助金额:$22.49万
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财政年份:2017
-
负责人:Uwe Klein
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依托单位:
国内基金
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批准号:81970721
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项目类别:面上项目
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资助金额:55.0万元
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批准年份:2019
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负责人:陶凌
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依托单位: