临床和分子频谱的v-损伤
Anna Buxeda1, Marta Crespo2, Betty Chamoun3
1Department of Nephrology, Hospital del Mar, Barcelona, Spain; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Canada.
概括
在移植中早期隔离的v损伤显示了较差的移植存活率和明显的分子配置. 这一发现表明早期与晚期隔离的v-损伤的原因不同,影响了移植结果.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 移植免疫学 移植免疫学
- 分子病理学分子病理学
背景情况:
- 在移植中孤立的v-损伤带来了诊断和临床挑战.
- 了解其分子特性和对移植物生存的影响至关重要.
研究的目的:
- 根据移植后的时间 (早期与晚期) 来描述孤立的v损伤的全移植结果.
- 为了比较分离的v损伤的分子表型与其他形式的抗体介导排斥 (ABMR) 和T细胞介导排斥 (TCMR).
主要方法:
- 使用NanoString B-HOT面板分析了92个脏活检样本.
- 活检包括分离的v-损伤,ABMR v+,TCMR v+,混合排斥v+和正常组织.
- 对六个基因组的评估:ABMR,捐赠者特异性抗体 (DSAST),内皮激活 (ENDAT),TCMR,早期/急性损伤和晚期损伤.
主要成果:
- 早期孤立的v-损伤 (<1个月) 与晚期孤立的v-损伤 (>1个月) 或其他排斥类型 (P = .034) 相比,明显较差的1年死亡审查的移植存活率.
- 隔离的v+组表现出较低的TCMR相关基因表达比TCMR和混合排斥 (P < .001).
- 早期和晚期分离的v病变显示,与ABMR相比,与ABMR相关的基因表达较低,混合排斥和TCMR (P ≤ .022).
- 晚期分离的v损伤比ABMR (P ≤ .046) 减少了DSAST和ENDAT基因表达,并且比早期分离的v+,ABMR,TCMR和混合排斥 (P ≤ .026) 减少了早期/急性损伤基因表达.
结论:
- 与其他v+排斥形式相比,孤立的v-损伤具有独特的分子配置.
- 早期隔离的v+与更差的预后和早期/急性损伤基因表达的增加有关,这表明与晚期隔离的v+相比,不同的潜在病因.
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