T CELL RECONSTITUTION AFTER STEM CELL AUTOGRAFTING

干细胞自体移植后 T 细胞重建

• 批准号: 6613452
• 负责人: JAN STOREK
• 金额: $ 29.93万
• 依托单位: FRED HUTCHINSON CANCER RESEARCH CENTER
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6613452
• 关键词: CD34 molecule; CD4 molecule; T lymphocyte; age difference; autoimmune disorder; cell proliferation; clinical research; hematopoietic stem cells; hematopoietic tissue transplantation; human subject; human therapy evaluation; radiation therapy

DESCRIPTION: (Verbatim from Investigator's abstract): Background: The recovery of CD4 T cells after high-dose chemo/radiotherapy in adult patients with cancer or autoimmune diseases is very slow (years) and may result in only limited T cell repertoire. A similar problem exists in AIDS patients treated with highly active anti-retroviral therapy. With the ultimate goal of designing strategies to improve the T cell regeneration after T lymphocytopenia, here we propose to study the mechanism of the T cell regeneration. Hypothesis: We hypothesize that after T-lymphocytopenia a substantial number of regenerating T cells originate from hemopoietic progenitors in young individuals whereas only few, if any, T cells originate from hemopoietic progenitors in older individuals. Instead, in the older individuals, the vast majority of T cells originate from the expansion of preexisting T cells. Methods: This hypothesis will be tested in severely lymphocytopenic patients with autoimmune diseases who have received high-dose chemo/radiotherapy plus anti-thymocyte globulin followed by autologous transplantation of hemopoietic (CD34+) cells. An extremely limited number of T cell clones survive such transplant conditioning/ CD34+ cell purification. Therefore, it is relatively easy (easier and more informative than in patients with only moderate T lymphocytopenia) to track down the fate of the surviving T cell clones and to detect T cells newly generated from hemopoietic progenitors post-transplant, using the following techniques: spectratyping, sequencing of the T cell receptor genes within a single spectratyping band, and quantifying T cells that contain T cell receptor-rearrangement excision circles (TREC). Outcome: If the above hypothesis is true, the repertoire of T cells, that is severely limited within the first several months after transplant, will later diversify in young (less than 5-years-old) whereas it will stay severely limited in older (greater than 45-years-old) patients. Also, if the hypothesis is true, the number of TREC-containing T cells post-transplant will be significantly higher in the young compared to the older patients. This will give impetus for developing strategies to enable older patients to generate T cells from hemopoietic progenitors, e.g., using thymopoietic cytokines or thymus grafting.

描述：（逐字摘自研究者摘要）：

项目成果

Transgene expression by a large fraction of dendritic cells following autologous transplantation of retrovirally transduced CD34 cells.

逆转录病毒转导的 CD34+ 细胞自体移植后，大部分树突状细胞进行转基因表达。

• DOI: 10.1089/scd.2006.15.619
• 发表时间: 2006
• 期刊: Stem cells and development
• 影响因子: 4
• 作者: Storek,Jan;Kiem,Hans-Peter
• 通讯作者: Kiem,Hans-Peter

Early recovery of CD4 T cell receptor diversity after "lymphoablative" conditioning and autologous CD34 cell transplantation.

“淋巴清除”调理和自体 CD34 细胞移植后 CD4 T 细胞受体多样性的早期恢复。

• DOI: 10.1016/j.bbmt.2008.09.013
• 发表时间: 2008
• 期刊: Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
• 作者: Storek,Jan;Zhao,Zhao;Liu,Yiping;Nash,Richard;McSweeney,Peter;Maloney,DavidG
• 通讯作者: Maloney,DavidG

Normal interleukin-7 (IL7) levels and normal IL7 response to CD4 T lymphopenia in patients with multiple sclerosis and systemic sclerosis.

多发性硬化症和系统性硬化症患者的正常白介素 7 (IL7) 水平以及对 CD4 T 淋巴细胞减少症的正常 IL7 反应。

• DOI: 10.1016/j.clim.2006.05.016
• 发表时间: 2006
• 期刊: Clinical immunology (Orlando, Fla.)
• 作者: Storek,Jan;Nash,RichardA;McSweeney,PeterA;Furst,DanielE;Sullivan,KeithM
• 通讯作者: Sullivan,KeithM

Long-term response of juvenile idiopathic arthritis after conditioning with 8 Gy total body irradiation followed by autologous peripheral blood stem cells: case report.

幼年特发性关节炎经 8 Gy 全身照射后自体外周血干细胞调理后的长期反应：病例报告。

• DOI: 10.1111/j.1399-3046.2009.01129.x
• 发表时间: 2010
• 期刊: Pediatric transplantation
• 影响因子: 1.3
• 作者: Woolfrey,Ann;Storek,Jan;Bowyer,Suzanne;Nelson,Robert;Robertson,Michael;Wallace,Carol
• 通讯作者: Wallace,Carol