不相关的捐赠者年龄和接受者移植后的结果 环胺与常规预防
Rohtesh S Mehta1, Rodney A Sparapani2, Christopher G Kanakry3
1Department of Stem Cell Transplantation and Cellular Therapy, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston.
JAMA oncology
|November 6, 2025
概括
在使用移植后环胺 (PTCy) 用于移植对宿主疾病 (GVHD) 预防时,与无关的老供体年龄对移植存活率的影响较小. 这一发现可能会扩大用于造血细胞移植 (HCT) 的供体库.
科学领域:
- 血造细胞移植 (HCT) 的方法
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 非相关捐赠者的晚年 (URDs) 是所有基性HCT中已知的风险因素,促使青少年捐赠者更受青.
- 随着移植后循环胺 (PTCy) 越来越多地用于移植对宿主疾病 (GVHD) 预防,捐赠者年龄的相关性是不确定的.
研究的目的:
- 为了调查较老的URD年龄与整体存活率之间的关联是否根据GVHD预防方案 (基于PTCy与基于氨酸抑制剂[CNI]) 不同.
主要方法:
- 使用注册表数据 (2017年1月~2021年6月) 的多中心队列研究,对从URD中接受异构HCT的成年患者进行.
- 分析包括接受匹配 (MUD) 或不匹配 (MMUD) URD 的患者,并使用基于 PTCy 或基于 CNI 的 GVHD 预防.
- 使用 LASSO 处罚的 Cox 模型,治疗权重的逆概率 (IPTW) 和 XGBoost 机器学习来评估总生存率.
主要成果:
- 增加捐赠者的年龄与CNI基础的MUD和MMUD队列的整体存活率 (OS) 更差有关.
- 在基于PTCy的队列中没有观察到捐赠者年龄和OS之间的这种关联.
- 在PTCy组中减弱的关联主要是由于捐赠者的年龄与非复发死亡率之间缺乏相关性.
结论:
- 较老的无关捐赠者年龄对HCT结果的不利影响似乎可以通过基于PTCy的GVHD预防来减轻.
- PTCy可能会抵消与无关的供体年龄增加的一些负面影响,挑战当前的供体选择范式.
- 这些发现,如果得到验证,可能会显著扩大全原性HCT的潜在供体池.
相关概念视频
01:28Kidney Transplant I: Introduction
297
A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...
297
01:22Bone Marrow Sampling and Transplants
801
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
801
01:26Kidney Transplant II: Surgical Procedure
270
Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living...
270
01:40Cell-mediated Immune Responses
83.2K
Overview
83.2K
01:24Tissue Transplantation
850
Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
850
01:15Drug Dosing: Geriatric Patients
199
Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
199