Successful Cord Blood Transplantation for Idiopathic CD4<sup>+</sup> Lymphocytopenia

Successful Cord Blood Transplantation for Idiopathic CD4<sup>+</sup> Lymphocytopenia
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成功进行特发性 CD4 脐带血移植

DOI:
10.1159/000516347
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发表时间:
2021
期刊:
影响因子:
2.4
通讯作者:
Hara
Hara
中科院分区:
医学4区
文献类型:
--
作者:
Yamamoto Keita;Najima Yuho;Iizuka Hiroko;Harada Yuka;Sadato Daichi;Kanai Akinori;Matsui Hirotaka;Inamoto Kyoko;Mukae Junichi;Shingai Naoki;Toya Takashi;Igarashi Aiko;Shimizu Hiroaki;Kobayashi Takeshi;Kakihana Kazuhiko;Sakamaki Hisashi;Ohashi Kazuteru;Hara

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特发性CD 4+淋巴细胞减少症(ICL)是指在没有人类免疫缺陷病毒感染或其他原因的情况下,CD 4+淋巴细胞减少至< 300个/mm 3。ICL导致致命性感染;其病因尚不清楚,并且缺乏关于治疗选择的共识。我们报告了第一例ICL患者,在脐带血移植(CBT)后获得了成功的临床病程。一名45岁的女性被诊断为ICL,并接受了部分肝切除术的脓肿引起的鸟分枝杆菌复合体。通过下一代基于测序的评价未检测到特异性基因改变。在由氟达拉滨、白消安和4戈伊全身照射组成的低强度预处理(RIC)方案后,进行单单位CBT。在第+14天植入中性粒细胞。在第+436天,CD 4+淋巴细胞计数增加至超过300个细胞/mm 3。75个月后,她还活着,没有任何后遗症。CBT与RIC方案可能是ICL的可治愈治疗选择。
Idiopathic CD4+ lymphocytopenia (ICL) is the depletion of CD4+ lymphocytes to< 300 cells/mm 3 without human immunodeficiency virus infection or other causes of lymphocytopenia. ICL causes fatal infections; its etiology remains unclear and it lacks consensus regarding therapeutic options. We report the first patient with ICL who had a successful clinical course following a cord blood transplant (CBT). A 45-year-old woman was diagnosed with ICL and underwent partial hepatectomy for an abscess caused by the Mycobacterium avium complex. No specific gene alterations were detected through next generation sequencing-based evaluation. Following a reduced-intensity conditioning (RIC) regimen consisting of fludarabine, busulfan, and 4 Gy total body irradiation, a single-unit CBT was performed. Neutrophils were engrafted on day+ 14. CD4+ lymphocyte counts increased to over 300 cells/mm 3 on day+ 436. After 75 months, she was alive without any sequelae. CBT with an RIC regimen could be a curable treatment option for ICL.
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