Blood:在骨髓移植后,EBV/LMP特异性T细胞可有效维持EBV相关淋巴瘤的缓解

2018-09-28 MedSci MedSci原创

中心点:供体来源的LMP-Ts可安全用作为辅助疗法来预防EBV相关淋巴瘤在allo-HSCT后复发。LMP-Ts用作辅助疗法时,患者2年总体存活率从68%升高至78%。摘要:以EB病毒(EBV)潜伏膜蛋白(LMPs)为靶点的自体T细胞在标准治疗(包括大剂量化疗+自体干细胞恢复)失败的II型潜伏EBV相关淋巴瘤患者的治疗中显现出安全性和有效性。但是,供体来源的LMP特异性T细胞(LMP-Ts)的安全

中心点:

供体来源的LMP-Ts可安全用作为辅助疗法来预防EBV相关淋巴瘤在allo-HSCT后复发。

LMP-Ts用作辅助疗法时,患者2年总体存活率从68%升高至78%。

摘要:

以EB病毒(EBV)潜伏膜蛋白(LMPs)为靶点的自体T细胞在标准治疗(包括大剂量化疗+自体干细胞恢复)失败的II型潜伏EBV相关淋巴瘤患者的治疗中显现出安全性和有效性。但是,供体来源的LMP特异性T细胞(LMP-Ts)的安全性和有效性尚未在进行allo-HSCT的患者中得到验证。因此,Lauren P. McLaughlin等人在26位进行异体造血干细胞移植的EBV相关的T/NK或B细胞淋巴瘤患者中评估供体来源的LMP-Ts的安全性和疗效。

7位患者在急性疾病期采用LMP-Ts治疗,19位患者采用LMP-Ts作为高危疾病的辅助疗法。两年总体存活率(OS)68%。此外,在allo-HSCT后完全缓解期进行T细胞治疗的患者2年OS高达78%。因B细胞疾病进行治疗的患者(10位)的2年OS为80%。T细胞疾病患者的2年OS为60%,与既往所报道的移植后2年OS 30-50%相比,存活率明显提高。此外,无直接与注射相关的毒性,仅一例剂量限制性毒性,可能与T细胞注射相关。

总而言之,本研究表明供体来源的LMP-Ts可安全有效降低B/T细胞淋巴瘤或淋巴增生障碍疾病患者移植后的复发率,支持将输注LMP特异性T细胞作为改善移植患者预后的辅助疗法。


原始出处:

Lauren P. McLaughlin,et al. EBV/LMP-specific T cells maintain remissions of T and B cell EBV lymphomas after allogeneic bone marrow transplantation. Blood  2018  :blood-2018-07-863654;  doi: https://doi.org/10.1182/blood-2018-07-863654

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