Tomotherapy and Hematopoietic Stem Cells for Tolerance to Kidney Transplants
断层放射治疗和造血干细胞对肾移植的耐受性
基本信息
- 批准号:10219064
- 负责人:
- 金额:$ 186.09万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-08-01 至 2022-07-31
- 项目状态:已结题
- 来源:
- 关键词:AllelesAllogenicAllograftingAnimal TestingAnimalsAntibodiesAntigensAntithymoglobulinBiopsyBone MarrowBone Marrow CellsBone Marrow TransplantationCD14 geneCD34 geneCellsCharacteristicsChimerismChronicClinicalCytomegalovirusDNADendritic CellsDevelopmentDonor personElementsEngraftmentEnvironmentFlow CytometryGoalsHaplotypesHealthcareHematopoieticHematopoietic stem cellsHistocompatibility Antigens Class IHumanImmuneImmune ToleranceImmunocompetenceImmunologic MonitoringImmunologicsImmunosuppressionImmunosuppressive AgentsInfusion proceduresInjuryKidneyKidney TransplantationKnowledgeLiving DonorsMHC Class I GenesMacaca mulattaMaintenanceMeasuresModelingMyeloid CellsMyeloid-derived suppressor cellsOrganOrgan TransplantationPathologyProtocols documentationRegimenRhesusSafetySolidSurvival RateT cell responseT-LymphocyteTestingTetanus ToxoidTimeTransplant RecipientsTransplantationTransplantation ToleranceWithdrawalbasecell typeclinical applicationconditioningdrug withdrawalimmunopathologyimmunoregulationinnovationkidney allograftkidney celllymphoid irradiationmonocytepatient populationperipheral bloodpost-transplantprogrammed cell death ligand 1public health relevancesuccesstransplant modelvirtual
项目摘要
Tomotherapy and Hematopoietic Stem Cells for Tolerance to Kidney Transplants
ABSTRACT
The overarching goal of this project is to develop a tolerance induction protocol for MHC disparate kidney
transplants in rhesus macaques and to elucidate the underlying mechanisms of the induction and maintenance
of mixed chimerism and tolerance in this model. The primary hypothesis is that tolerance to MHC mismatched
kidney transplants can be safely and effectively achieved by establishing a mixed chimeric state using a newly
established post‐transplant non‐myeloablative, helical tomotherapy‐based total lymphoid irradiation (TLI)‐
based conditioning regimen followed by donor bone marrow‐CD34+ hematopoietic cell (HSC) infusions. In
addition, we will elucidate mechanisms of host immunoregulatory characteristics that are associated with
successful HSC engraftment and maintenance of the chimeric state. We propose to test our hypotheses by means
of 2 specific aims: 1.) Combined Bone Marrow Hematopoietic Cell/Kidney Transplants to determine the
proportion of rhesus macaque recipients of disparate unrelated donor kidney transplants that achieve chimerism
(without GVHD) and can be withdrawn from all immunosuppressive drugs for greater than 2 years while
maintaining normal allograft function and without rejection. We will measure the state of mixed chimerism in
recipients as a function of time post‐transplant and according to various peripheral blood and bone marrow cell
types using DNA (STR) analysis, and with flow cytometry using rhesus antibodies specific for MHC class I
Mamu alleles of the donor. 2) Immune Monitoring, Immunopathology and Immunocompetence. We will: a.)
determine early recipient immunoregulatory changes of host myeloid cells induced by the TLI‐based
conditioning regimen that correlate with the success of bone marrow engraftment, b.) determine if the mixed
chimeric state induces changes of host dendritic cell acquisition of donor MHC class I antigen and PD‐LI
expression at serial time points during and after withdrawing immunosuppression, c.) characterize the
development of renal allograft immune and non‐immune injury by analysis of serial renal allograft biopsies, and
d.) determine the degree of recipient immune‐competency after immunosuppressive drug withdrawal by testing
the recall T cell responses to cytomegalovirus antigens and tetanus toxoid. Knowledge gained through this
rhesus tolerance induction protocol, including the underlying immunological mechanisms, will have direct
relevance to a variety of deceased donor transplants. Furthermore, it will set a new course of healthcare
innovation and delivery that will greatly benefit transplant patients, and other patient populations.
断层放射治疗和造血干细胞对肾移植的耐受性
抽象的
该项目的总体目标是开发 MHC 不同肾脏的耐受诱导方案
恒河猴移植并阐明诱导和维持的潜在机制
该模型中存在混合嵌合和耐受性。主要假设是对 MHC 的耐受性不匹配
通过使用新的方法建立混合嵌合状态,可以安全有效地实现肾移植
建立了移植后非清髓性、基于螺旋断层放疗的全淋巴照射(TLI)-
基于预处理方案,然后输注供体骨髓 CD34+ 造血细胞 (HSC)。
此外,我们将阐明与相关的宿主免疫调节特征的机制
HSC 的成功植入和嵌合状态的维持 我们建议通过以下方法检验我们的假设。
2 个具体目标:1.) 联合骨髓造血细胞/肾脏移植以确定
不同的无关供体肾移植的恒河猴接受者实现嵌合的比例
(无 GVHD)并且可以停用所有免疫抑制药物超过 2 年,同时
保持正常的同种异体移植功能并且无排斥反应。我们将测量混合嵌合状态。
受体作为移植后时间的函数并根据各种外周血和骨髓细胞。
使用 DNA (STR) 分析和流式细胞术使用 MHC I 类特异性恒河猴抗体进行类型分析
捐赠者的 Mamu 等位基因 2) 免疫监测、免疫病理学和免疫能力。
确定基于 TLI 诱导的宿主骨髓细胞的早期受体免疫调节变化
与骨髓移植成功相关的调理方案,b.) 确定是否混合
嵌合状态诱导宿主树突状细胞获取供体 MHC I 类抗原和 PD-LI 的变化
撤回免疫抑制期间和之后的一系列时间点的表达,c.) 表征
通过分析系列同种异体肾移植物活检来确定同种异体肾移植物免疫和非免疫损伤的发展,以及
d.) 通过测试确定免疫抑制药物戒断后接受者免疫能力的程度。
回忆 T 细胞对巨细胞病毒抗原和破伤风类毒素的反应。
恒河猴耐受诱导方案,包括潜在的免疫机制,将具有直接的
此外,它将制定新的医疗保健方针。
创新和交付将使移植患者和其他患者群体受益匪浅。
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)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Dixon B Kaufman其他文献
Dixon B Kaufman的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Dixon B Kaufman', 18)}}的其他基金
University of Wisconsin Transplant Reseach Training Program
威斯康星大学移植研究培训计划
- 批准号:
9307715 - 财政年份:2016
- 资助金额:
$ 186.09万 - 项目类别:
University of Wisconsin Transplant Reseach Training Program
威斯康星大学移植研究培训计划
- 批准号:
9925721 - 财政年份:2016
- 资助金额:
$ 186.09万 - 项目类别:
Tomotherapy and Hematopoietic Stem Cells For Tolerance to Kidney Transplants
断层放射治疗和造血干细胞对肾移植的耐受性
- 批准号:
8706792 - 财政年份:2012
- 资助金额:
$ 186.09万 - 项目类别:
Tomotherapy and Hematopoietic Stem Cells For Tolerance to Kidney Transplants
断层放射治疗和造血干细胞对肾移植的耐受性
- 批准号:
8517007 - 财政年份:2012
- 资助金额:
$ 186.09万 - 项目类别:
Tomotherapy and Hematopoietic Stem Cells for Tolerance to Kidney Transplants
断层放射治疗和造血干细胞对肾移植的耐受性
- 批准号:
9329967 - 财政年份:2012
- 资助金额:
$ 186.09万 - 项目类别:
Tomotherapy and Hematopoietic Stem Cells for Tolerance to Kidney Transplants
断层放射治疗和造血干细胞对肾移植的耐受性
- 批准号:
10518420 - 财政年份:2012
- 资助金额:
$ 186.09万 - 项目类别:
Tomotherapy and Hematopoietic Stem Cells For Tolerance to Kidney Transplants
断层放射治疗和造血干细胞对肾移植的耐受性
- 批准号:
8401097 - 财政年份:2012
- 资助金额:
$ 186.09万 - 项目类别:
ISLET TRANSPLANTATION IN NON-UREMIC DIABETIC PATIENTS
非尿毒症糖尿病患者的胰岛移植
- 批准号:
7604238 - 财政年份:2006
- 资助金额:
$ 186.09万 - 项目类别:
A PILOT STUDY OF ISLET TRANSPLANTATION IN NON-UREMIC DIABETIC PATIENTS
非尿毒症糖尿病患者胰岛移植的试点研究
- 批准号:
7604311 - 财政年份:2006
- 资助金额:
$ 186.09万 - 项目类别:
相似国自然基金
胸腺上皮细胞在小鼠后肢同种异体复合组织移植中的免疫调节作用及相关机制研究
- 批准号:82102354
- 批准年份:2021
- 资助金额:30 万元
- 项目类别:青年科学基金项目
过表达MicroRNA-199a-3p的BMSCs来源的外泌体抑制小鼠DC功能诱导同种异体心脏移植免疫耐受的机制研究
- 批准号:82160081
- 批准年份:2021
- 资助金额:34 万元
- 项目类别:地区科学基金项目
具有靶向识别和序贯治疗功能的纳米微球对血管化同种异体复合组织移植术后免疫抑制的研究
- 批准号:
- 批准年份:2020
- 资助金额:24 万元
- 项目类别:青年科学基金项目
基于T细胞亚群分化与TLR2/TRAF6信号通路探讨ESAT-6抑制同种异体移植排斥的分子免疫机制
- 批准号:82071800
- 批准年份:2020
- 资助金额:55 万元
- 项目类别:面上项目
受体tolDC诱导的供体MHC-I抗原特异性Treg诱导同种异体器官移植免疫耐受
- 批准号:81901627
- 批准年份:2019
- 资助金额:21.0 万元
- 项目类别:青年科学基金项目
相似海外基金
The novel role of HLA-E restricted CD8 regulatory T cells in kidney allograft rejection
HLA-E限制性CD8调节性T细胞在肾同种异体移植排斥中的新作用
- 批准号:
10564689 - 财政年份:2023
- 资助金额:
$ 186.09万 - 项目类别:
Machine learning with immunogenetics for the prediction of hematopoietic cell transplant outcomes
机器学习与免疫遗传学预测造血细胞移植结果
- 批准号:
10322105 - 财政年份:2021
- 资助金额:
$ 186.09万 - 项目类别:
Machine learning with immunogenetics for the prediction of hematopoietic cell transplant outcomes
机器学习与免疫遗传学预测造血细胞移植结果
- 批准号:
10534187 - 财政年份:2021
- 资助金额:
$ 186.09万 - 项目类别:
Complement Induces Inflammasome Assembly in Human Endothelium: Mechanisms and Consequences for Graft Rejection
补体诱导人内皮细胞炎症小体组装:移植物排斥的机制和后果
- 批准号:
9609855 - 财政年份:2018
- 资助金额:
$ 186.09万 - 项目类别:
Optimizing NK Education and Alloreactivity after HLA-Haploidentical Allogeneic Hematopoietic Cell Transplantation
HLA-单倍体同种异体造血细胞移植后优化 NK 教育和同种异体反应性
- 批准号:
10229526 - 财政年份:2018
- 资助金额:
$ 186.09万 - 项目类别: