Programmable Off-the-Shelf Dendritic Cells as an Immunotherapy Discovery Platform
Programmable Off-the-Shelf Dendritic Cells as an Immunotherapy Discovery Platform
批准号:
10051095
负责人:
David Minh Truong
金额:
$37.7万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2021
资助国家:
美国
项目状态:
未结题
起止时间:
2021-09-01 至 2026-08-31
关键词:
AddressAdoptive ImmunotherapyAllelesAllogenicAntigen-Presenting CellsAntigensAutologousAwardBase PairingBasic ScienceBindingCell LineCell physiologyCellsClinicCommunicable DiseasesComplexConsumptionCustomCytotoxic T-LymphocytesDNADendritic Cell VaccineDendritic CellsEndogenous RetrovirusesEngineeringGenesGeneticGenomeGoalsHLA AntigensHaplotypesHarvestHumanHuman GenomeImmuneImmune systemImmunotherapyIn VitroIndustrializationInvestmentsLibrariesMalignant NeoplasmsMarshalMature T-LymphocyteMethodsModificationNational Institute of Allergy and Infectious DiseasePatientsPeptidesPersonsPopulationPositioning AttributeProceduresProliferatingReporterResearchResearch PersonnelRoleSafetySolid NeoplasmSourceStressStretchingSurfaceSystemT-Cell ActivationT-Cell ReceptorT-LymphocyteTechnologyTestingTherapeuticTimeTrainingTransgenesTumor AntigensTumor-Infiltrating LymphocytesUntranslated RNAVaccinesValidationVisionWorkWritingcancer immunotherapycareerchemotherapychimeric antigen receptorcombinatorialefficacy testingengineered T cellsepigenetic silencinggenome-widehigh rewardhigh riskinduced pluripotent stem cellinduced pluripotent stem cell technologyinnovationinvestigator trainingmonocyteneoplastic cellnew technologynext generation sequencingnovel therapeuticsperipheral bloodprogramsreceptorrefractory cancersynthetic biologytechnology developmenttumor
中文摘要
项目摘要
使用针对肿瘤特异性靶点工程化的患者收获的T细胞的免疫细胞疗法已经被证实是有效的。
开创了一个新的治疗时代 然而,缺乏肿瘤特异性靶点和T细胞受体限制了肿瘤的治疗。
可治疗的癌症针对实体瘤的一种有前途的方法是使用针对肿瘤细胞的T细胞受体(TCR)。
在几乎每个细胞表面发现的HLA受体上展示的特异性抗原(TSA)。 不幸的是,
HLA是人与人之间高度多态的基因。这将TCR和TSA都限制在很小的数量
病人。 一个扩大HLA限制性TSA和TCR数量的平台将改变整个
免疫治疗管道。
在这里,我建议通过产生可编程的树突状细胞(DC)来解决这一未满足的需求。
抗原呈递细胞,其起成熟和激活初始T细胞的作用。可编程DC将允许
发现新的TCR,验证TSA,也许可以作为“活”疫苗来引导患者自己的免疫系统。
免疫系统抵抗传染病和癌症。迄今为止,为利用发展中国家的潜力所作的努力,
主要受到以下限制:(1)不能产生与患者匹配的HLA细胞;(2)不能产生与患者匹配的HLA细胞。
针对TCR对新的TSA进行强有力的测试和验证;(3)无法在工业生产中生产“现成的”DC
规模
作为一个新的创新者,我的愿景是生产现成的树突状细胞,
单倍型(甚至罕见的)和预编码的任何组合的TSAs。利用这个新平台,我的团队
将寻找和验证“通用”TSA/TCR,可广泛用于任何患者的TCR-γ治疗。
具体来说,我们将重点关注从基因组中通常表观遗传沉默的区域表达的肽,
但在肿瘤细胞中被重新激活(如内源性逆转录病毒)。 为了实现这一目标,我们将继续
技术的发展使得能够在人类诱导多能细胞中“写入”数百万个碱基对的DNA,
干细胞(iPSC)。该技术允许在单个步骤中直接定制iPSC的大HLA基因座;
引入潜在TSA的文库;合成报告构建体(其是可切除的)的扩增和整合
为了安全起见)用于增强iPSC向DC的体外定向分化。因此,同种异体程序化DC
将促进各种各样的免疫治疗应用,并扩大这些先进治疗的可及性,
更多的病人。
英文摘要
Project Summary
Adoptive Cell Immunotherapy using patient harvested T cells engineered against tumor-specific targets has
ushered in a new therapeutic era. However, the lack of tumor-specific targets and T cell receptors limits the
addressable cancers. A promising approach for solid tumors uses T cell receptors (TCRs) directed against tumor-
specific antigens (TSAs) displayed on HLA receptors found on the surface of nearly every cell. Unfortunately,
HLAs are highly polymorphic genes between people. This restricts both the TCRs and TSAs to a small number
of patients. A platform that expands the number of HLA-restricted TSAs and TCRs will transform the entire
immunotherapy pipeline.
Here, I propose to address this unmet need by generating programmable Dendritic cells (DCs) – professional
antigen presenting cells that function to mature and activate naive T cells. Programmable DCs would permit the
discovery of new TCRs, validation of TSAs, and perhaps be used as "living" vaccines to marshal a patient’s own
immune system against infectious disease and cancer. Thus far, efforts to leverage the potential of DCs have
been limited principally by: (1) an inability to produce cells with HLAs matched to patients;; (2) an inability to
robustly test and validate new TSAs against TCRs;; and (3) an inability to produce "off-the-shelf" DCs at industrial
scale.
As a new innovator, my vision is to produce off-the-shelf Dendritic Cells pre-engineered to match any HLA
haplotype (even rare ones) and pre-encoded with any combination of TSAs. Using this new platform, my group
will search for and validate "universal" TSAs/TCRs that can be used broadly in TCR-Therapy for any patient.
Specifically, we will focus on peptides expressed from regions of the genome normally epigenetically silenced,
but re-activated in tumor cells (such as endogenous retroviruses). To reach this goal, we will continue
development of technology enabling the "writing" of millions of base-pairs of DNA in human induced pluripotent
stem cells (iPSCs). This technology allows direct customization of the large HLA locus of iPSCs in a single step;;
introduction of libraries of potential TSAs;; and integration of synthetic reporter constructs (which are excisable
for safety) for enhancing the in vitro directed differentiation of iPSCs to DCs. Thus, allogeneic programmed DCs
will catalyze a wide variety of immunotherapy applications and expand access of these advanced treatments for
a greater number of patients.
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会议论文
Programmable Off-the-Shelf Dendritic Cells as an Immunotherapy Discovery Platform
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批准号:10449196
-
项目类别:
-
资助金额:$39.17万
-
财政年份:2021
-
负责人:David Minh Truong
-
依托单位:
Programmable Off-the-Shelf Dendritic Cells as an Off-the-Shelf Immunotherapy Discovery Platform
-
批准号:10564837
-
项目类别:
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资助金额:$7.19万
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财政年份:2021
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负责人:David Minh Truong
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依托单位:
Programmable Off-the-Shelf Dendritic Cells as an Immunotherapy Discovery Platform
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批准号:10684656
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项目类别:
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资助金额:$36.32万
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财政年份:2021
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负责人:David Minh Truong
-
依托单位:
Programmable Off-the-Shelf Dendritic Cells as an Immunotherapy Discovery Platform
-
批准号:10770601
-
项目类别:
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资助金额:$10.69万
-
财政年份:2021
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负责人:David Minh Truong
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依托单位:
Humanized synthetic chromosomes built in yeast for organ xenotransplantation
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批准号:9305101
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项目类别:
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资助金额:$5.92万
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财政年份:2015
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负责人:David Minh Truong
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依托单位:
Humanized synthetic chromosomes built in yeast for organ xenotransplantation
-
批准号:8982620
-
项目类别:
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资助金额:$5.24万
-
财政年份:2015
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负责人:David Minh Truong
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依托单位:
Humanized synthetic chromosomes built in yeast for organ xenotransplantation
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批准号:9115472
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项目类别:
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资助金额:$5.61万
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财政年份:2015
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负责人:David Minh Truong
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依托单位:
海外基金