粒细胞集落刺激因子/粒-巨噬细胞集落刺激因子联合动员异基因造血干细胞移植

背景:目前FDA已批准应用于临床外周血造血干细胞移植的动员剂只有粒细胞集落刺激因子和粒-巨噬细胞集落刺激因子,其中粒细胞集落刺激因子单药应用是目前最主要的动员方案,但可引起供者骨骼肌肉酸痛、发热等不良反应。目的:回顾性分析以粒细胞集落刺激因子/粒-巨噬细胞集落刺激因子联合应用为动员方案的异基因造血干细胞移植临床效果。方法:选择2004-01/2009-10河南省人民医院血液科以粒细胞集落刺激因子与粒-巨噬细胞集落刺激因子联合应用为动员方案进行血缘全相合异基因造血干细胞移植51例,分析移植物成分、造血重建及移植物抗宿主病的发生率。结果与结论:动员96h后CD34+细胞占单个核细胞的比例为(0.97±0.13)%,CD34+CD38-细胞占CD34+细胞的比例为(37.49±4.03)%;移植后的快速造血重建与CD34+细胞、CD34+CD38-细胞输入量呈负相关。Ⅰ度、Ⅱ～Ⅳ度急性移植物抗宿主病的发生率分别为25.5%,15.7%;局限性、广泛性慢性移植物抗宿主病的发生率分别为39.2%,21.2%。提示在血缘全相合异基因造血干细胞移植中,粒细胞集落刺激因子/粒-巨噬细胞集落刺激因子联合可有效实现干细胞动员,所获CD34+细胞完全可以满足快速造血重建的需要;输入较多的CD34+细胞、CD34+CD38-细胞可能利于快速造血重建。     

粒细胞集落刺激因子/粒-巨噬细胞集落刺激因子联合动员异基因造血干细胞移植

背景：目前FDA已批准应用于临床外周血造血干细胞移植的动员剂只有粒细胞集落刺激因子和粒-巨噬细胞集落刺激因子,其中粒细胞集落刺激因子单药应用是目前最主要的动员方案,但可引起供者骨骼肌肉酸痛、发热等不良反应。目的：回顾性分析以粒细胞集落刺激因子/粒-巨噬细胞集落刺激因子联合应用为动员方案的异基因造血干细胞移植临床效果。方法：选择2004-01/2009-10河南省人民医院血液科以粒细胞集落刺激因子与粒-巨噬细胞集落刺激因子联合应用为动员方案进行血缘全相合异基因造血干细胞移植51例,分析移植物成分、造血重建及移植物抗宿主病的发生率。结果与结论：动员96h后CD34＋细胞占单个核细胞的比例为（0.97±0.13）%,CD34＋CD38-细胞占CD34＋细胞的比例为（37.49±4.03）%;移植后的快速造血重建与CD34＋细胞、CD34＋CD38-细胞输入量呈负相关。Ⅰ度、Ⅱ～Ⅳ度急性移植物抗宿主病的发生率分别为25.5%,15.7%;局限性、广泛性慢性移植物抗宿主病的发生率分别为39.2%,21.2%。提示在血缘全相合异基因造血干细胞移植中,粒细胞集落刺激因子/粒-巨噬细胞集落刺激因子联合可有效实现干细胞动员,所获CD34＋细胞完全可以满足快速造血重建的需要;输入较多的CD34＋细胞、CD34＋CD38-细胞可能利于快速造血重建。     

影响恶性肿瘤患者造血系统自体外周血造血干细胞数量和质量的因素分析

背景:造血系统恶性肿瘤的造血重建除与疾病本身、预处理方案、移植后支持治疗手段等相关外,自体外周血造血干细胞的动员、采集和冻存是影响其移植后造血系统顺利重建的关键因素。目的:观察造血系统恶性肿瘤患者自体外周血造血干细胞经动员、采集和冻存后,重新回输至造血系统的重建情况,并分析影响外周血造血干细胞数量和质量的因素。设计:以造血系统恶性肿瘤为对象的病例分析。单位:解放军广州军区广州总医院血液科,南方医科大学珠江医院血液科。对象:选取2000-02/2004-12解放军广州军区广州总医院血液科收治的18例造血系统恶性肿瘤住院患者,年龄16～56岁,其中急性髓性白血病2例,急性淋巴细胞白血病1例,淋巴瘤白血病2例,慢性粒细胞白血病2例,多发性骨髓瘤4例,非霍奇金淋巴瘤7例。粒细胞集落刺激因子(Granocyte,中外制药产品,批号N3G31)。方法:①全部病例均采用对肿瘤有效的联合化疗方案 粒细胞集落刺激因子进行动员。联合化疗方案:白血病患者第1～3天每隔12h给予阿糖胞苷2g/m2,第1～5天给予足叶乙甙200mg/m2或氟达拉宾50mg/m2。多发性骨髓瘤患者给予阿糖胞苷方案同上,第1～2天给予环磷酰胺1g/m2。淋巴瘤患者第1～2天给予环磷酰胺2g/m2。各类型患者化疗后白细胞降至1.0×109L-1以下时开始进行粒细胞集落刺激因子动员,5μg/(kg.d)皮下注射至采集结束。②当白细胞恢复至(4.0～10.0)×109L-1时开始采集外周血造血干细胞,单个核细胞计数≥4.0×108/kg或CD34 细胞≥2.0×106/kg时结束采集,经程序降温仪处理置入-196℃液氮中保存,37～40℃水浴解冻。③患者病灶部位行局部照射预处理,200cGy/次,5次/周,连续4周,总剂量40Gy。结束后48h回输外周血造血干细胞(55.3±28.7)mL,回输日距采集日平均为(56.5±22.3)d。全部患者于干细胞移植后第1天起皮下注射粒细胞集落刺激因子300μg/d,至中性粒细胞≥0.5×109L-1时停止。检测冻存前及解冻后自体外周血造血干细胞的锥虫蓝拒染率、单个核细胞计数、粒-单系祖细胞集落数及CD34 细胞百分率。主要观察指标:①自体外周血造血干细胞的采集情况。②冻存后自体外周血造血干细胞存活率及相关指标检测。③自体外周血造血干细胞移植后造血系统重建情况。结果:18例造血系统恶性肿瘤患者全部进入结果分析。①18例患者自体外周血造血干细胞平均采集时间为化疗后12.6d,采集次数为1.9次,采集第1天白细胞总数为(8.93±1.27)×109L-1,单个核细胞采集率为(138.33±28.61)%。②冻存后18例自体外周血造血干细胞标本锥虫蓝拒染率与冻存前基本相似[(96.26±1.33)%,(92.75±2.04)%,P>0.05]。解冻后单个核细胞、CD34 、粒-单系祖细胞回收率分别为(91.96±1.37)%,(85.94±0.64)%,(87.69±4.53)%。骨髓瘤患者的单个核细胞采集率、CD34 细胞百分率及粒-单系祖细胞集落数均明显低于白血病和淋巴瘤患者(t=2.524～3.268,P<0.05)。③移植后15d,15例患者中性粒细胞恢复至≥0.5×109L-1;移植后20d,血小板恢复至≥20×109L-1。化疗疗程>10次的5例患者粒-单系祖细胞生长不良,为(18.67～26.82)×105/kg,其中3例出现自体外周血造血干细胞移植后造血重建延迟。结论:①重组粒细胞集落刺激因子与大剂量化疗联合的动员方案可缩短外周血造血干细胞采集时间,提高单个核细胞采集率。②移植前化疗次数增多可影响自体外周血造血干细胞的数量和质量,导致造血重建延迟。     

异基因外周血干细胞的动员与衡量

目的 :探讨异基因外周血干细胞移植的动员及阈剂量。方法 :重组粒细胞集落刺激因子动员 HL A配型相合的同胞供者 ,动员前后检测外周血及采集物中的单个核细胞、CD34 细胞及幼粒细胞。结果 :6例造血功能恢复迅速 , 12～ 14 d WBC≥ 1× 10 9/L , 9～ 2 4 d PL T≥ 2 0× 10 9/L ,染色体分析或血型检测证实为供者型。结论 :重组粒细胞集落刺激因子 7～ 10μg/(kg· d)连用 5 .5～ 6 d,适合临床常规使用。幼粒细胞≥ 1.38× 10 8/kg,单个核细胞≥ 6 .0 7× 10 8/kg联合应用可作为阈剂量。     

自体干细胞移植治疗糖尿病足的干细胞动员和采集

背景：在自体干细胞移植治疗下肢缺血性疾病的干细胞动员期间,国内外大多数研究组均常规应用5～10μg/（kg？d）的粒细胞集落刺激因子动员,5d后采集干细胞进行移植,这是否为最佳的动员时间和采集时机未见相关报道。目的：分析探讨自体干细胞移植最佳动员方案及采集时机,提高该方法的安全性。方法：对备行干细胞移植的18例糖尿病足患者分别采用粒细胞集落刺激因子5,10μg/（kg？d）进行造血干细胞动员,分析粒细胞集落刺激因子动员天数、剂量与外周血白细胞、单个核细胞、CD34＋细胞数的关系,并检测干细胞动员前后、采集前后患者凝血指标、血小板计数的变化,观察患者动员及采集过程的不良反应。结果与结论：随着动员天数的增加,白细胞和单个核细胞、CD34＋细胞数也随之增加,干细胞获得的效率与粒细胞集落刺激因子的剂量、动员时间有关,外周血中CD34＋总数与单个核细胞总数呈正相关。患者的凝血指标在动员和采集前后无显著变化。血小板计数在动员前后无变化,但在采集后有显著下降;18例患者中仅有1例在粒细胞集落刺激因子动员中发生轻度骨头酸痛,1例出现发热,其他患者均无不良反应发生。提示,糖尿病足患者干细胞采集的最佳时机不能单凭动员天数和外周血白细胞数决定,而是由外周血单个核细胞数和CD34＋的数量来决定。且干细胞动员和采集对患者的不良反应小,安全性高。     

粒细胞集落刺激因子动员急性心肌梗死患者自体外周血CD34^＋细胞数量变化：老年组与非老年组不同时间点差异

目的:研究证实随着年龄的增长外周血干细胞动员效率呈下降趋势,急性心肌梗死老年患者是否存在这种下降趋势还不清楚。对比观察粒细胞集落刺激因子对老年与非老年急性心肌梗死患者外周血干细胞的动员效果。方法:①选择2004-03/2006-01辽宁省心血管病医院心血管内科收治的35例急性心肌梗死(≤30d)住院患者,男29例,女6例。按年龄分为两组:≥60岁为老年组,16例;<60岁为非老年组,19例。两组患者性别、体质量、急性心肌梗死发生时间等基线资料基本一致,对本实验均知情同意。②包涵体型粒细胞集落刺激因子,商品名:惠尔血,麒麟昆鹏生物制药有限公司生产,批号030551,300μg/支。③实验前两组患者均查白细胞计数和分类,以除外潜在血液系统恶性疾病的可能。患者入选后给予包涵体型粒细胞集落刺激因子,300～600μg/d一次性注射皮下注射,连续5d。分别在动员前和动员后第3,4,5,6,7天进行外周血中白细胞记数,将CD34 细胞视为干细胞,采用FACSCalibur流式细胞仪测定外周血中CD34 数量。结果:35例急性心肌梗死患者均全部进入结果分析。①两组患者粒细胞集落刺激因子动员前后外周血中白细胞数量的变化:两组动员前及动员后3,4,5,6,7d外周血中白细胞数量差异均无显著性意义(P=0.142,0.763,0.150,0.448,0.856,0.431),且动员高峰均出现在第5～6天。②两组患者粒细胞集落刺激因子动员后不同时间点外周血中CD34 细胞数量的变化:两组动员前及动员后3,4,5,6,7d外周血中CD34 细胞数量差异均无显著性意义(P=0.122,0.093,0.075,0.056,0.244),且动员高峰均出现在第5～6天。③外周血中白细胞数量与CD34 细胞数量相关性分析:两组外周血中白细胞数量与CD34 细胞数量均呈正相关,老年组r=0.89,非老年组r=0.69。结论:老年与非老年急性心肌梗死患者外周血干细胞经粒细胞集落刺激因子动员后,二者外周血中白细胞数量与CD34 数量均基本相似。白细胞数量与CD34 数量呈正相关,且变化曲线高峰出现在动员后第5天或第6天。     

自体干细胞移植治疗糖尿病足的干细胞动员和采集

背景:在自体干细胞移植治疗下肢缺血性疾病的干细胞动员期间,国内外大多数研究组均常规应用5~10 μg/(kg?d)的粒细胞集落刺激因子动员,5 d后采集干细胞进行移植,这是否为最佳的动员时间和采集时机未见相关报道.目的:分析探讨自体干细胞移植最佳动员方案及采集时机,提高该方法的安全性.方法:对备行干细胞移植的18例糖尿病足患者分别采用粒细胞集落刺激因子5,10 μg/(kg?d)进行造血干细胞动员,分析粒细胞集落刺激因子动员天数、剂量与外周血白细胞、单个核细胞、CD34+细胞数的关系,并检测干细胞动员前后、采集前后患者凝血指标、血小板计数的变化,观察患者动员及采集过程的不良反应.结果与结论:随着动员天数的增加,白细胞和单个核细胞、CD34+细胞数也随之增加,干细胞获得的效率与粒细胞集落刺激因子的剂量、动员时间有关,外周血中CD34+总数与单个核细胞总数呈正相关.患者的凝血指标在动员和采集前后无显著变化.血小板计数在动员前后无变化,但在采集后有显著下降;18例患者中仅有1例在粒细胞集落刺激因子动员中发生轻度骨头酸痛,1例出现发热,其他患者均无不良反应发生.提示,糖尿病足患者干细胞采集的最佳时机不能单凭动员天数和外周血白细胞数决定,而是由外周血单个核细胞数和CD34+的数量来决定.且干细胞动员和采集对患者的不良反应小,安全性高.     

粒细胞集落刺激因子在自体外周血干细胞移植治疗缺血性下肢血管病中的作用

目的:观察缺血性下肢血管病患者进行自体外周血干细胞移植时,应用粒细胞集落刺激因子后细胞成分的变化以及对自身身体状况的近期影响。方法:选取2004-11/2005-04解放军第四六三医院内分泌科收治的126例接受粒细胞集落刺激因子动员的缺血性下肢血管病患者,全部接受皮下注射粒细胞集落刺激因子5～12μg/(kg·d),连续4～5d。为防止血黏度增加引起心脑血管意外,在干细胞动员的同时应用低分子肝素钙5000u,皮下注射1次/d,连续4～5d。每天监测血细胞计数和凝血3项,同时采用流式细胞仪监测外周血中CD34+细胞数。观察并记录动员后及采集过程中、后出现的毒副反应。结果:按意向处理分析,实验纳入126例缺血性下肢血管病患者,全部进入结果分析。①全部患者动员过程中外周血象的变化:粒细胞集落刺激因子动员前白细胞数量为(5.35±1.64)×109L-1,动员第5天为(42.17±18.56)×109L-1,第6天为(44.23±17.47)×109L-1,动员后比动员前提高5～13倍(P<0.01);血红蛋白和血小板动员前后无明显变化。②全部患者动员后采集细胞悬液的情况:37例患者于动员第5天进行采集,单个核细胞数值和CD34+百分数分别为(432.68±89.36)×109L-1和(0.87±0.38)%;其余89例均于第6天进行采集,单个核细胞数值和CD34+百分数分别为(463.71±58.33)×109L-1和(0.90±0.35)%,两者基本相近(P>0.05)。③性别、年龄和体质量对单个核细胞数值和CD34+细胞百分数的影响:男性患者采集的单个核细胞数值高于女性患者(P<0.05),而单位体质量的CD34+细胞数值男女基本相近;以年龄55岁为界,大于55岁和小于55岁的患者差异显著(P<0.05);高体质量患者采集的单个核细胞数值高于低体质量患者(P<0.05),而单位体质量的CD34+细胞数值基本相似。④不良事件和副反应:主要的不良反应有骨痛、周身肌肉酸痛、乏力、头痛、失眠、食欲下降、恶心呕吐、低热,采集过程中可能出现口周、面部或四肢麻木,一般停药2～4d症状即可消失。结论:缺血性下肢血管病患者进行自体外周血干细胞移植时,粒细胞集落刺激因子作为有效动员剂,可有效动员单个核细胞和CD34+细胞,绝大部分患者能够耐受,但应使用一定剂量的抗凝剂预防不良反应的发生。     

造血干细胞动员和采集对正常供者的影响

背景:粒细胞集落刺激因子动员是当前健康志愿供者采用的主要方法.据国内外文献报告:在粒细胞集落刺激因子动员中已发生少数严重不良反应,这引起了国人对中国非血缘健康供者安全的忧虑.粒细胞集落刺激因子作为动员剂对健康志愿供者有何影响?是否安全?目的:观察粒细胞集落刺激因子对正常供者的影响.方法:选择2003-01/2008-12在海口市人民医院接受粒细胞集落刺激因子5～10 μg/(kg·d)动员剂进行外周血造血干细胞捐赠者16例,观察动员及采集过程的不良反应,检测动员前后血常规CD3、CD19、CD3+4、CD3+8细胞比值在动员前后变化,并随访所有供者.结果与结论:10例供者在重组人粒细胞集落刺激因子动员过程中无任何不适,有3例出现低热,头痛、肌肉及骨骼疼痛、腰痛等,3例供者出现发热,其严重程度均在Ⅰ级,但无需终止动员.白细胞经重组人粒细胞集落刺激因子动员后数量较动员前升高,停止动员后3 d全部供者的白细胞恢复至动员前水平.血红蛋白、血小板、CD3、CD19、CD3+4、CD3+8细胞比值在动员前、动员后72,96 h无明显变化.提示健康供者可耐受粒细胞集落刺激因子5～10 μg/(kg·d),动员和采集过程;且对T细胞亚群无影响.     

自体外周血干细胞动员和采集并联合化疗方案治疗儿童神经母细胞瘤及原始神经外胚层肿瘤35例

背景:自体外周血干细胞移植是目前治疗恶性实体瘤的重要方法之一,干细胞动员与采集是决定造血重建的重要因素。目的:主要评价环磷酰胺,吡柔比星,长春新碱动员方案对儿童神经母细胞瘤及原始神经外胚层肿瘤自体外周血造血干细胞移植动员采集的临床效果。方法:对35例患儿,确诊神经母细胞瘤30例,原始神经外胚层肿瘤5例,采用CDV化疗方案动员,观察采集干细胞效果。结果与结论:所有病例化疗后第4～9天(平均6.5d)白细胞<2×109L-1,给予粒细胞刺激因子5～10mg/kg刺激造血,化疗后13～19d(平均15.5d)至白细胞>5×109L-1后开始采集。所有病例均采集到足够的单个核细胞数和CD34+细胞,总采集次数1～4次,平均2.1次,单个核细胞:(6.1±1.2)×108/kg,CD34+细胞为(5.3±0.8)×106,锥虫蓝拒染率:99.5%(99%～100%),动员并发症少,患儿均能耐受。其中25例进行自体外周血干细胞移植后均获快速造血功能重建,白细胞开始回升(中性粒细胞绝对值>0.5×109L-1)时间为移植后10～20d(平均14d)血红蛋白恢复(>80g/L)的时间为移植后10～30d(平均18d),血小板恢复(>20×109L-1)时间为移植后12～35d(平均20d)。结果提示CDV方案可以安全有效地完成神经母细胞瘤及原始神经外胚层肿瘤患儿自体外周血干细胞动员和采集。     

G-CSF联合普乐沙福动员异基因造血干细胞移植亲缘健康供者外周血造血干细胞的单中心分析

目的:研究粒细胞集落刺激因子(G-CSF)联合普乐沙福对异基因造血干细胞移植(allo-HSCT)的亲缘健康供者外周血造血干细胞动员的效果及安全性.方法:回顾性分析2019年4月至2021年4月在河北燕达陆道培医院采用G-CSF联合普乐沙福动员方案的亲缘健康供者33例(观察组),应用G-CSF细胞动员d4采集骨髓,d5...     

Mobilization of blood-derived stem and progenitor cells in normal subjects by granulocyte-macrophage- and granulocyte-colony-stimulating factors

BACKGROUND: It was previously reported that the combination of granulocyte-macrophage-colony-stimulating factor (GM-CSF) and granulocyte-CSF (G-CSF) for 4 days mobilized more primitive CD34+ subsets than did either G-CSF or GM-CSF alone. STUDY DESIGN AND METHODS: The studies determine the optimal number of days of growth factor dosing for mobilization and collection of peripheral blood progenitor cells, by increasing the days of administration of GM-CSF and/or G-CSF or employing the sequential administration of GM-CSF followed by G-CSF. Sixty normal subjects were given injections of G-CSF or GM-CSF alone; GM-CSF and G-CSF concurrently for 4, 5, or 6 days; or a sequential regimen of GM-CSF for 3 or 4 days followed by G-CSF for 2 or 3 days. A 10-L apheresis was performed 24 hours after the last dose. RESULTS: The three most efficacious mobilization regimens consisted of sequential GM-CSF for 3 days followed by G-CSF for either 2 or 3 days and G-CSF alone for 5 days. Each of these regimens resulted in the collection of significantly greater numbers of CD34+ cells by apheresis than any of the 4-day dosing regimens with G-CSF and/or GM-CSF (sequential GM-CSF/G-CSF: 3 days/2 days = 3.58 +/− 0.53 × 106 CD34+ cells/kg; GM-CSF/G-CSF: 3 days/3 days = 4.45 +/− 1.08 × 10(6) CD34+ cells/kg; G-CSF: 5 days = 3.58 +/− 0.97 × 10(6) CD34+ cells/kg; all p<0.05 vs. G-CSF and/or GM-CSF for 4 days). Clonogenic assays generally paralleled the level of CD34+ cells. Regimens containing GM-CSF resulted in a higher percentage of the cells from primitive CD34+/CD38- /HLA-DR+ subset than G-CSF alone. CONCLUSION: Compared with 4-day dosing regimens with G-CSF and/or GM-CSF, mobilization of CD34+ cells in normal subjects using sequential GM-CSF for 3 days followed by G-CSF for 2 or 3 days or using G-CSF alone for 5 days increased the number CD34+ cells that can be collected by a single 10-L apheresis 24 hours after the last dose of cytokine.     

化疗加G-CSF和GM-CSF联合动员自体外周血干细胞

目的　探讨化疗加粒细胞集落刺激因子 (G CSF)和粒 巨噬细胞集落刺激因子 (GM CSF)联合动员自体外周血干细胞 (APBSC)的效果。方法　卡铂 (CBP) 35 0mg m2 ,第 1天静滴 ;足叶乙甙(Vp16 ) 35 0mg m2 ,第 1～第 3天静滴 ;白细胞降至最低点又回升到 (2 .4～ 6 .4)× 10 9 L时 ,皮下注射G CSF 5 μg·kg- 1 ·d- 1 (早 6∶0 0 ) GM CSF 5 μg·kg- 1 ·d- 1 (晚 6∶0 0 ) 地塞米松 5mg d(采集日 10mg d)直到采集结束前 1天 ;白细胞上升到 (2 9.80± 5 .98)× 10 9 L ,开始用CS30 0 0plus血细胞分离机连续 2d采集APBSC。结果　 2 0例患者连续采集APBSC 2次 ,共采集到MNC(5 .93± 1.6 2 )× 10 8 kg ,CD34 细胞 (2 3.10± 11.5 3)× 10 6 kg ,CFU GM(3.44± 2 .85 )× 10 5 kg。无严重不良反应。 9例 10次自体外周血干细胞移植(APBSCT)造血功能均获满意重建。结论　以化疗联合G CSF和GM CSF能高效、安全地动员APBSC ,1次动员采集 2次可满足 1～ 2次的APBSCT。     

自体外周血干细胞动员中测定CD34^＋Thy—1＋细胞的意义

目的：确切评估动员后外周血干细胞（ＰＢＳＣ）水平的变化，及时指导临床选择最佳采血时机。方法：用流式细胞术测定化疗和粒细胞集落刺激因子（Ｇ－ＣＳＦ）联合动员时外周血ＣＤ３４＋Ｔｈｙ－１＋细胞含量的变化，同时用体外集落培养方法评价外周血祖细胞（ＰＢＰＣｓ）的克隆形成能力。结果：动员后循环血中ＣＤ３４＋Ｔｈｙ－１＋细胞、ＣＤ３４＋细胞和克隆形成细胞（ＣＦＣ）含量分别增高４８．６倍、５０．０倍和５３．１倍，高峰时间在化疗后第１２～１４天（注射Ｇ－ＣＳＦ的第６～８天）；外周血单个核细胞中ＣＤ３４＋Ｔｈｙ－１＋细胞、ＣＤ３４＋细胞的比例分别增高１３．８倍和１０．５倍；动员的早期阶段，ＣＤ３４＋细胞中Ｔｈｙ－１＋细胞比例最高。结论：联合应用化疗和Ｇ－ＣＳＦ对ＰＢＰＣｓ，尤其对早期干／祖细胞具有显著动员作用；用流式细胞术检测ＣＤ３４＋Ｔｈｙ－１＋细胞可及时指导临床准时采集ＰＢＳＣ。     

短程大剂量粒细胞集落刺激因子动员外周血造血干细胞的研究

研究短程大剂量粒细胞集落刺激因子对外周血造血干细胞的动员作用。方法采用短程大剂量Ｇ－ＣＳＦ对１１例患者进行外周血造血干细胞动员，Ｇ－ＣＳＦ５μｇ／ｋｇ皮下注射，每日２次，共３天，动员当天及第４天，分别取骨髓及外周血增生明显活跃，外周血白细胞计数明显升高。     

Peripheral blood progenitor cell collection after epirubicin, paclitaxel, and cisplatin combination chemotherapy using EPO-based cytokine regimens: a randomized comparison of G-CSF and sequential GM-/G-CSF

BACKGROUND: The peripheral blood progenitor cell (PBPC) mobilization capacity of EPO in association with either G-CSF or sequential GM-CSF/G-CSF was compared in a randomized fashion after epirubicin, paclitaxel, and cisplatin (ETP) chemotherapy. STUDY DESIGN AND METHODS: Forty patients with stage IIIB, IIIC, or IV ovarian carcinoma were enrolled in this randomized comparison of mobilizing capacity and myelopoietic effects of G-CSF + EPO and GM-/G-CSF + EPO following the first ETP chemotherapy treatment. After ETP chemotherapy (Day 1), 20 patients received G-CSF 5 microg per kg per day from Day 2 to Day 13 and 20 patients received GM-CSF 5 microg per kg per day from Day 2 to Day 6 followed by G-CSF 5 microg per kg per day from Day 7 to Day 13. EPO (150 IU per kg) was given every other day from Day 2 to Day 13 to all patients in both arms of the study. Apheresis (two blood volumes) was performed during hematologic recovery. RESULTS: The magnitude of CD34+ cell mobilization and the abrogation of patients' myelosuppression were comparable in both study arms; however, GM-/G-CSF + EPO patients had significantly higher CD34+ yields because of a higher CD34+ cell collection efficiency (57.5% for GM-/G-CSF + EPO and 46.3% for G-CSF + EPO patients; p = 0.0009). Identical doses of PBPCs mobilized by GM-/G-CSF + EPO and G-CSF + EPO drove comparable hematopoietic recovery after reinfusion in patients treated with identical high-dose chemotherapy. CONCLUSION: The sequential administration of GM-CSF and G-CSF in combination with EPO is feasible and improves the PBPC collection efficiency after platinum-based intensive polychemotherapy, associating high PBPC mobilization to high collection efficiency during apheresis.     

Predicting hematopoietic stem cell mobilization failure in patients with multiple myeloma: a simple method using day 1 CD34+ cell yield

Early and reliable prediction of the likelihood of achieving adequate stem cell collection for autologous stem cell transplantation (ASCT) in patients with multiple myeloma (MM) would improve collection efficiency, prevent unnecessary aphereses, and permit appropriate treatment alterations. No previous study has reported a threshold CD34+ cell collection quantity on Day 1 or 2 of leukapheresis that could predict successful stem cell collection. We performed a retrospective analysis of all MM patients undergoing first attempt of stem cell collection at our institution from 2001 through 2008. Recursive partitioning analysis was used to identify Day 1 or Day 1+2 CD34+ collection quantity that predicted failure to reach target ≥ 2 × 10(6) CD34+ cells/kg within five days of collection. Totally, 172 patients were included in the analysis. Patients underwent mobilization with G-CSF or G-CSF+ chemotherapy. 23 of 172 patients (13.4%) failed to collect sufficient (≥ 2 × 10(6) CD34+ cells/kg) CD34+ cells after five days of apheresis: 22 of 29 who collected ≤ 0.70 × 10(6) CD34+ cells/kg and 1 of 143 who collected > 0.70 × 10(6) CD34+ cells/kg (75.9% vs. 0.7%, P < 0.001) on Day 1. Collection failure occurred in 23 of 30 patients who collected ≤ 1.54 × 10(6) CD34+ cells/kg and 0 of 142 who collected >1.54 × 10(6) CD34+ cells/kg (76.7% vs. 0%, P < 0.001) on Days 1 + 2. Day 1 CD34+ cell collection quantity identifies patients unlikely to achieve adequate collection for ASCT. Patients who collect ≤ 0.70 × 10(6) CD34+ cells/kg on day 1 could be considered for treatment modifications to improve CD34+ collection, such as early administration of plerixafor or large volume apheresis.     

A combination of low-dose cyclophosphamide and colony-stimulating factors is more cost-effective than granulocyte-colony-stimulating factors alone in mobilizing peripheral blood stem and progenitor cells

BACKGROUND: The use of peripheral blood progenitor cells (PBPCs) instead of autologous bone marrow leads to more rapid engraftment following high-dose chemotherapy. Mobilization regimens differ with respect to toxicity, efficiency, and cost. STUDY DESIGN AND METHODS: Two cohorts of patients with breast cancer received one of two mobilization regimens: granulocyte-colony-stimulating factor (G-CSF) at 10 micrograms per kg was given subcutaneously for 5 days, with leukapheresis begun on Day 6, or low-dose cyclophosphamide followed by sequential granulocyte-macrophage-CSF (GM-CSF) at 5 micrograms per kg for 5 days and by G-CSF at 10 micrograms per kg, with leukapheresis begun on Day 11. Results of CD34+ cell collection, engraftment, and costs of mobilization were determined. RESULTS: The combination chemotherapy and growth factor regimen was more efficient in mobilizing CD34+ cells. Sixty-six percent of patients reached a target 4 × 10(6) CD34+ cells per kg in a single leukapheresis session with the combination regimen, compared to 14 percent who received G-CSF alone (p < 0.01). The mean number of leukapheresis sessions required to reach a target of 4 × 10(6) CD34+ cells per kg was 1.3 for the combination regimen and 2.7 for the regimen of G-CSF alone (p < 0.01). One patient in the chemotherapy and growth factor group developed febrile neutropenia. Engraftment was similar in both cohorts of patients. The cost of mobilization, including all supplies and cryopreservation, was $7381 for the G-CSF regimen and $5508 for the chemotherapy regimen (p < 0.05). This reduction was attributed to the lower number of leukapheresis and cryopreservation sessions, which outweighed the slight increase in expense for chemotherapy and growth factor in the combination regimen. CONCLUSION: This combination mobilization regimen allowed the predictable and efficient collection of CD34+ cells from the peripheral blood in a limited number of leukapheresis sessions, which reduced the cost of mobilization by approximately 25 percent.     

PBPC mobilization with paclitaxel, ifosfamide, and G-CSF with or without amifostine: results of a prospective randomized trial

BACKGROUND: The impact of amifostine on PBPC mobilization with paclitaxel and ifosfamide plus G-CSF was assessed. STUDY DESIGN AND METHODS: Forty patients with a median age of 34 years (range, 19-53) who had germ cell tumor were evaluated for high-dose chemotherapy. Patients were randomly assigned to receive either a single 500-mg dose of amifostine (Group A, n = 20) or no amifostine (Group B, n = 20) before mobilization chemotherapy with paclitaxel (175 mg/m(2)) given over 3 hours and ifosfamide (5 g/m(2)) given over 24 hours (TI) on Day 1. G-CSF at 10 microg per kg per day was given subsequent to TI with or without amifostine from Day 3 until the end of leukapheresis procedures. RESULTS: In 2 (10%) of 20 patients receiving amifostine and 3 (15%) of 20 patients not receiving it, no PBPC separation was performed because of mobilization failure. No significant differences were observed in the study arms with regard to the time from chemotherapy until first PBPC collection or the number of apheresis procedures needed to harvest more than 2.5 x 10(6) CD34+ cells per kg. Furthermore, leukapheresis procedures yielded comparable doses of CD34+ cells per kg (3.4 x 10(6) vs. 3.6 x 10(6); p = 0.82), MNCs per kg (2.7 x 10(8) vs. 2.6 x 10(8); p = 0.18), and CFU-GM per kg (15.9 x 10(4) vs. 19.3 x 10(4); p = 0.20). Patients in Group A had higher numbers of circulating CD34+ cells on Day 10 (103.0/microL vs. 46.8/microL; p = 0.10) and on Day 11 (63.0/microL vs.14.3/microL; p = 0.04) than did patients in Group B. CONCLUSION: Administration of a single dose of amifostine before chemotherapy with TI mobilized higher numbers of CD34 cells in the circulation, but did not enhance the overall collection efficiency in the present trial.     

血液病患者/健康供者外周血造血干细胞动员及采集效果分析

目的探讨外周血造血干细胞(PBSC)动员采集的方法及其效果。方法对恶性血液病(多发性骨髓瘤、急性白血病和淋巴瘤)患者及健康供者经单一粒细胞集落刺激因子(G-CSF)和化疗联合粒细胞集落刺激因子方案动员后,使用血细胞分离机采集外周血造血干细胞,分析不同动员方案、疾病、年龄、性别及供者的动员采集。结果所有患者和健康供者均成功动员和采集到了PBSC(MNC>5×108/kg,CD34+>2×106/kg);健康供者的动员效果为MNC(8.25±3.07)×109/L;恶性血液病患者中,急性髓细胞白血病患者采集所获得的MNC最多,为(7.48±2.62)×108/kg,多发性骨髓瘤患者最差,为(5.06±1.50)×108/kg;急性淋巴细胞白血病患者采集所获得的CD34+最多,为(5.36±2.64)×106/kg,多发性骨髓瘤患者最少,为(3.45±0.76)×106/kg。化疗联合G-CSF和IL-11为最好的动员方案;18—60岁患者采集效果最好,60—65岁患者最差;男性较女性好。结论健康供者较恶性血液病患者动员效果好,健康供者中性别对采集效果无影响;无论是健康供者还是恶性血液病患者,动员、采集过程副作用小。