已故捐赠者ABO差异由于罕见的AwB亚组:对器官分配的影响
Sara O Dionne1, Kelsey Smith2, Luis Santiago1
1Eurofins Donor and Product Testing, Centennial, Colorado, USA.
Transfusion
|March 8, 2026
概括
精确的 ABO 血型确定对于器官移植至关重要. 分子基因型定型可以解决血清检测中遗漏的弱ABO亚组中的差异,从而提高移植安全性.
科学领域:
- 输血医学 输血医学
- 免疫遗传学 免疫遗传学
- 移植免疫学 移植免疫学
背景情况:
- 准确的 ABO 血型确定对于安全的已故捐献器官分配至关重要.
- 常规的血清检测可能无法检测弱或变异的ABO亚组,导致差异.
- 这些差异对移植接收者的安全构成风险.
研究的目的:
- 描述一个不一致的 ABO 类型导致已故器官捐赠者的病例.
- 调查分子基因型鉴定在解决 ABO 差异方面的实用性.
- 突出目前对已故捐赠者的ABO确定工作流程的局限性.
主要方法:
- 在独立收集的标本上使用凝聚合的血清学测试.
- 实时聚合酶连锁反应 (PCR) 用于ABO基因定型.
- 两个独立实验室的结果比较.
主要成果:
- 最初的血清学测试产生了相互矛盾的 ABO 结果 (AB 与 B).
- 重复测试显示弱和可变的A抗原反应性,表明弱A亚组.
- 分子基因型鉴定确定了一种AwB基因型,证实了弱A等位基因.
结论:
- 常规的血清检测容易错误分类罕见的弱ABO亚组.
- 分子基因型定型为解决ABO差异提供了一种可靠的方法.
- 在已故捐赠者ABO确定工作流程中存在差距,影响器官利用和移植安全.
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