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减低剂量预处理方案对血缘与非血缘关系外周血干细胞移植治疗慢性粒细胞白血病疗效的影响 被引量:6

Reduced intensity conditioning regimen for related and unrelated allogeneic peripheral blood hemato- poietic stem cell transplantation in chronic myeloid leukemia
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摘要 目的观察和比较血缘与非血缘关系异基因外周血干细胞移植(allo—PBSCT)采用氟达拉滨(Flud)联合白消安(BU)组成的FB减低剂量预处理方案治疗慢性粒细胞白血病(CML)的疗效和移植相关并发症。方法采用FB(Flud30mg·m^2·d^-1×5d;Bu4mg·m^2·d^-1×3d)方案allo—PBSCT治疗CML共44例,接受血缘关系移植29例(血缘组),接受非血缘关系移植15例(非血缘组)。急性移植物抗宿主病(aGVHD)预防:血缘组为霉酚酸酯(MMF)+环孢素(CsA)+甲氨蝶呤(MTX),非血缘组在上述基础上另加兔抗人胸腺细胞球蛋白(ATG,5mg/kg×4d)。结果所有患者移植后均取得造血功能重建,血缘组与非血缘组中性粒细胞〉0.5×10^9/L的中位时间分别为13.7(9~18)d和13.6(12~17)d,血小板〉20×10^9/L的中位时间分别为15.3(9~20)d和14.7(10~26)d。但血缘组与非血缘组分别有2例与1例患者移植后5~8个月发生继发性植入排斥,其中血缘组1例再次行同一供体移植,重获造血功能重建。血缘组累计发生aGVHD共4例(13.8%),均为Ⅱ度;存活6个月以上28例患者中发生慢性GVHD(cGVHD)13例(46.4%),其中局限型和广泛型分别为10例和3例。非血缘组累计发生aGVHD共5例(33.3%),其中I~Ⅱ度4例,Ⅲ度1例;存活6个月以上14例患者中发生cGVHD8例(57.1%),其中局限型和广泛型分别为5例和3例。血缘组有2例患者移植后复发,给予冻存G—CSF动员的供者外周血干细胞输注(DSI)1~2次后再获得CR。本组中位随访时间34.7(2~73)个月,累计移植相关死亡10例(22。7%),主要死因是间质性肺炎、GVHD及继发排斥伴重症感染;34例患者存活,预期5年总生存率(OS)和无病生存率(DFS)分别为77.0%和73.9%;其中,血缘关系移植5年OS和DFS分别为79.O%和74.1%,非血缘关系移� Objective To evaluate the overall efficacy and transplant-related mortality (TRM) of related and unrelated allogeneie peripheral blood hematopoietic stem cell transplantation (aIIo-PBSCT) in chronic myeloid leukemia (CML) patients conditioned with fludarabine-busulfan(FB) reduced intensity regimen. Methods Forty-four patients received FB(Flud30 mg ·m^2·d^-1×5 d, BU4 mg·m^2·d^-1×3 d ) conditioning followed by allo-PBSCT. Of them, 29 patients were transplanted with related donor and 15 unrelated donor (URD). All patients received mycophenolate mofetil (MMF), CsA and MTX for acute GVHD (aGVHD) prophylaxis. 5 ing/kg rabbit-antithymocyte globulin ( ATG-Fresenius ) was incorporated in 15 URD recipients. Results All patients were successfully engrafted. The median times to ANC above 0.5 × 10^9/L in related (RG) and unrelated groups (URG) were 13.7 (9 - 18 ) d and 13.6 ( 12 - 17) d, and PLT above 20 × 10^9/L were 15.3 (9 - 20) d and 14.7 ( 10 - 26) d, respectively. Two patients in RG. 1 in URG developed graft rejection 5 - 8 months after transplantation. One of the two patients in RG received second transplantation and engrafted. The cumulative incidence of aGVHD and cGVHD were 13.8% (4/29) and 46.4% (13/28) in RG, and were 33.3% (5/15) and 57.1% (8/14) in URG respectively. Two patients in RG relapsed after transplantation, and obtained CR again after donor stem cell infusion (DSI). Median time of follow-up was 34.7 (2 -73 ) months. Thirty-four patients were alive and 10 died. The main causes of death were IP, GVHD, graft rejection and infection. The 5-year overall survival (OS) probability was 77.0% , and the disease-free-survival (DFS) was 73.9% , of which, 79.0% and 74.1% were in RG, and 73.3% and 73.3% in URG, respectively. Conclusions Fludarabine-busulfan based reduced intensity conditioning for allo-PBSCT with either related or unrelated donors is a safe, less toxic and curative approach to CML.
出处 《中华血液学杂志》 CAS CSCD 北大核心 2010年第2期77-81,共5页 Chinese Journal of Hematology
基金 国家自然科学基金(30871100) 上海市卫生系统“百人计划”(98BR029) 上海市科委生物医药重大科技攻关项目(05DZ19327)
关键词 造血干细胞移植 移植预处理 白血病 髓样 慢性 Hematopoietic stem cell transplantation Reduced-intensity conditioning Leukemia, myeloid, chronic
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参考文献11

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