低剂量rhG-CSF对56例非血缘供者外周造血干细胞动员

本研究观察低剂量人重组粒细胞集落刺激因子(rhG-CSF)对非血缘健康供者的影响,探讨用于中华造血干细胞捐赠者资料库提供的非血缘健康供者外周造血干细胞动员方案。56例非血缘健康供者接受rhG-CSF 5μg/(kg.d)皮下注射,在动员第4、5两天或第5、6两天采集干细胞,观察动员效果及不良反应,检测动员前后血常规指标、CD3+、CD4+、CD8+和CD20+细胞比例;对采集物进行单个核细胞(MNC)和CD34+细胞计数;对所有供者随访至2006年5月31日。结果显示:在rhG-CSF动员过程中出现1级毒副作用(按WHO分级标准):腰背酸痛17.9%(10/56)、焦虑失眠8.9%(5/56)、疲乏4.5%(3/56)等,无需特殊处理,无需终止动员。第4、5两天采集和第5、6两天采集所得的MNC分别是(5.95±1.52)×108/kg和(7.19±2.12)×108/kg;CD34+细胞分别是(3.03±1.09)×106/kg和(7.92±2.50)×106/kg。血红蛋白水平、血小板量、CD3、CD4、CD8、CD20百分比动员前后无变化。结论:5μg/(kg.d)rhG-CSF用于非血缘健康供者的动员是安全而有效的。     

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d 4采集骨髓,d 5采集外周血造血干细胞(PBSC),d 5晚加用普乐沙福,并于d 6再次采集PBSC。随机选取历史同期采用单独G-CSF方案动员的亲缘健康供者46例作为对照组,分析2组供者d 5和d 6 PBSC采集物中CD34⁺细胞计数。以调查问卷的方式观察供者普乐沙福给药后的不良反应。分析接受"G-CSF+普乐沙福"动员方案的allo-HSCT患者和仅接受"G-CSF"动员方案的造血干细胞移植患者在移植后100天总a GVHD、Ⅲ-Ⅳ度a GVHD、CMV血症和EBV血症的发生方面的差异。结果:观察组在d 5和d 6 PBSC采集物中CD34⁺细胞数(M±Q)分别为(1.71±1.02)×10⁶/kg和(4.23±2...     

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.     

重组人G-CSF对健康供者外周造血干／祖细胞动员和采集效果的影响因素分析

应用重组人粒系集落刺激因子（rhG—CSF）对健康供者进行动员并采集造血干细胞用于异基因外周血造血干细胞移植已在临床广泛应用，本研究通过对影响外周干细胞动员和采集效果的多因素分析，进一步探讨最佳动员方案及采集时机。采取回顾性方法分析了431例健康供者外周血干细胞动员采集效果，并进一步分析了供者一般特征、rhG—CSF动员天数、每日皮下注射次数、剂量与采集效果的关系。结果表明：rhG—CSF在动员中平均应用剂量为5．7μg／（kg·d），平均采集1．7次，收获单个核细胞数平均为9．57×10^8／kg，CD34^＋细胞平均为4．91×10^6／kg。绝大多数供者不良反应轻微。多因素分析结果显示，采集效率主要与供者体重指数，采集天数相关。rhG—CSF动员第5天采集的供者，其MNC数、CD34^＋细胞数及第一次单采成功率均优于其他时间采集的供者。同时，本组供者应用rhG—CSF剂量较小且剂量范围较窄，rhG—CSF剂量不如采集时间对采集物质量的影响明显。结论：小剂量应用rhG—CSF动员并于第5天开始采集是健康供者造血干细胞动员的较理想方案。     

健康供者造血干细胞动员和采集效果的分析

目的对影响造血干细胞动员和采集效果的多因素进行分析,进一步探讨最佳动员方案及采集时机。方法对94例健康供者采用惠尔血或瑞白5～10μg·kg-1·d-14～5d进行造血干细胞动员,采取相关性分析方法分析供者体重、粒细胞集落刺激因子（G-CSF）动员天数、剂量及采集前外周血淋巴细胞数值与采集效果的关系。结果采集效率与供者体重指数、采集天数、动员剂剂量有关。G-CSF动员第5天采集的供者,其单个核细胞（MNC）数、CD34＋细胞数优于其他时间采集的供者。同时,外周血淋巴细胞数值与采集物MNC比例呈正比。结论应用5～10μg·kg-1·d-1G-CSF动员并于第5天开始采集是健康供者造血干细胞动员的较理想方案。     

健康供者外周血造血干细胞动员后采集的最佳时机

背景:外周血干细胞移植的首要条件是造血干细胞有效动员和采集,并能较快持久地重建造血.近年国内外不少单位已开展了此项工作,但平均每例供者采集次数较多,且造血干细胞的产率高低差别较大. 目的:探讨健康供者外周血造血干细胞动员后采集的最佳时机.方法:2003-01/2008-12海口市人民医院进行异基因外周血造血干细胞采集的健康捐赠者16例,随机分为2组,单纯动员组6例,皮下注射粒细胞集落刺激因子5.0～10.0 μg/(kg·d),共5 d;联合组10例,在单纯动员组基础上,静脉推注地塞米松10 mg.每例供者均采集2次外周血造血干细胞,单纯动员组与联合组又各分为2 h,4 h两个亚组,即若在第4天动员后2 h采集,则第5天在动员后4 h采集;若在第4天动员后4 h采集,则第5天在动员后2 h采集.16例供者采集量为4.0～5.0 mL,推赶量3.0～5.0 mL,总循环血量6.7～10.1 L.结果与结论:单纯动员组、联合组采集的单个核细胞数均达到(4.0～8.0)×10~8 kg~(-1).与2 h亚组比较,两组4 h亚组采集物的单个核细胞数均明显增加(P < 0.05).提示粒细胞集落刺激因子动员后第4,5天进行采集,4 h采集物的细胞浓度明显高于2 h;供者采集时循环血量是其自身循环血量的1.8～2.2倍时已能一次采集足够量的细胞数,有较合理的采集时间-价值-效益的关系.     

异基因造血干细胞移植后供者外周血造血干细胞输注预防高危白血病复发

目的评估重组人粒细胞集落刺激因子(G-CSF)动员的供者外周血造血干细胞输注 (GPBSCI)作为一种早期过继性免疫治疗方法的有效性和安全性。方法 12例高危白血病患者同胞配型相合异基因造血干细胞移植(allo-HSCT)后接受了G-CSF动员的预防性GPBSCI。allo-HSCT前患者的诊断包括2例Ph 急性淋巴细胞白血病首次完全缓解(ALL-CR1),1例ALL-CR2,1例ALL合并顽固中枢神经系统白血病(CNSL),1例急性髓系白血病(AML)复发,1例AML合并CNSL,1例 AML-CR3,4例进展期慢性粒细胞白血病(CML)及1例骨髓增生异常综合征-难治性贫血伴幼稚细胞增多型(MDS-RAEB)。结果 12例患者共接受了16次GPBSCI,其中移植后90天( 90天)前接受 GPBSCI 5次,输注的单个核细胞(MNC)及CD3 细胞中位数分别为1．00(0．95-1．24)×108/kg和 0．53(0．39-0．63)×108/kg。 90天后接受GPBSCI 11次,输注两类细胞中位数分别为2．27(1．00- 4．30)×108/kg和1．15(0．55-2．10)×108/kg。输注后4例患者发生了Ⅰ或Ⅱ度急性移植物抗宿主病(GVHD),1例患者发生Ⅲ度急性GVHD。7例患者发生了慢性GVHD,其中4例为广泛型。2例患者未发生输注相关GVHD。未观察到GPBSCI相关的全血细胞减少。中位随访563(415-728)d,12 例高危白血病患者中有10例无病存活,2例死于白血病复发。结论预防性GPBSCI可以增强移植物抗白血病作用,相关不良反应小,可能成为改善高危白血病allo-HSCT预后的安全有效的手段。     

捐献外周血造血干细胞供者动员和采集护理

目的:探讨粒细胞集落刺激因子(G-CSF)动员和外周血造血干细胞(PBSC)采集对供者的影响及相应的护理措施。方法:对21例异基因外周血造血干细胞供者采用G-CSF皮下注射5~6 d,使用COBE Spectra血细胞分离机采集外周血干细胞。做好对供者的动员和采集护理。结果:21例供者均顺利完成PBSC动员和采集,所有供者采集总量均达到受者移植细胞数要求。随访1~3个月供者均状况良好。结论:细致的护理可以使PBSC动员、采集期间和移植工作顺利完成。     

国产与进口粒细胞集落刺激因子动员外周血造血干细胞的效果对照

为评估国产重组人粒细胞集落刺激因子在动员外周造血干细胞的效果,选择2001/2005收治的20例自体外周血造血干细胞移植患者,男11例,女9例,其中急性髓细胞白血病11例,急性淋巴细胞白血病5例,恶件淋巴瘤3例,多发性骨髓瘤1例.根据患者对约价承受能力分为2组:国产重组人粒细胞集落刺激因子动员组、进口重组人粒细胞集落刺激因子动员组,每组各10例,除急性髓细胞白血病采用大剂量阿糖胞昔动员外,其他均应用大剂量环磷酰胺动员,当白细胞降全低谷开始回升时加国产与进口重组人粒细胞集落刺激因子,白细胞升至5×109L-1以上开始采集外周血造血干细胞.所有患者均移植成功,两者在给药剂量、用约天数,采集干细胞质量、造血功能重建及药物毒副反应等方面差异均无显著性意义.     

重组人粒细胞集落刺激因子对外周血造血干细胞动员的作用及影响因素

外周血造血干细胞移植已越来越多的应用于临床,在干细胞移植治疗过程中,动员和采集足够的造血干细胞是移植成功的关键。重组人粒细胞集落刺激因子是当前外周血造血干细胞动员的主要方法。     

地塞米松对G-CSF动员供体外周血干细胞及其移植受体造血功能恢复的影响

本研究旨在观察不同动员方法对健康供者外周血造血干细胞的动员效果、采集过程中的不良反应及移植后受者造血功能恢复的影响.2008年1月-2013年5月期间本院43例异基因造血干细胞移植供者分为单纯动员和联合动员两组.单纯动员组采用粒细胞集落刺激因子5-10 μg/（kg·d）皮下注射,动员4-6天开始采集;联合动员组在单纯动员基础上于采集前2-4h给予静脉滴注地塞米松10 mg.观察不同组采集的MNC、CD34＋细胞数及其与采集前外周血MNC数的关系,观察采集过程中的不良反应和回输不同组供者造血干细胞后受者造血重建情况.结果表明：两组供者采集造血干细胞数均满足移植需要,单纯动员组采集的MNC及CD34＋细胞数均高于联合动员组.两组采集物中MNC与采集前外周血MNC计数均呈正相关;联合动员组采集后血红蛋白及血小板下降幅度较单纯动员组明显.单纯动员组采集过程中不良反应轻微,可以耐受及逆转,联合动员组未出现不良反应.在两组患者预处理方案无统计学差异的情况下,联合动员组相应的受者造血重建时间较单纯动员组明显缩短.结论：在G-CSF动员供体外周血干细胞时加用地塞米松,可以减少外周血造血干细胞采集的不良反应,可采集到足够的造血干细胞数,采集前外周血中MNC计数仍可以作为评估采集物中MNC高低的一项参考指标,特别是联合地塞米松动员干细胞对于受者造血重建有积极意义.     

Short‐term side effects and attitudes towards second donation: A comparison of related and unrelated haematopoietic stem cell donors

The Nordic Register of Haematopoietic Stem Cell Donors (NRHSD) has registered related and unrelated donors from 10 transplant centres in Sweden, Norway, Finland and Denmark since 1998. We present a prospective, observational study of 1,957 donors, focusing mainly on the differences between related and unrelated donors. Related donors are reported to have more comorbidities, but similar side effects compared with unrelated donors. Side effects after BM or PBSC donation are generally of short duration and in this study no deaths, myocardial infarctions, splenic ruptures, or thromboembolic events are reported. Interestingly, related donors express more hesitancy towards donating again when asked 1 month after donation.     

Comparison of two blood cell separators in collecting peripheral blood stem cell components

To ensure that a sufficient number of CD34+ cells are collected for an allogeneic blood progenitor cell transplant, the most effective blood cell separator should be used to collect peripheral blood stem cell (PBSC) components. We compared the effectiveness of two blood cell separators. We gave 29 healthy people 7.5 or 10 μg kg^?1 of granulocyte colony stimulating factor (G-CSF) daily for 5 days and collected one PBSC component with either a Fenwal CS3000 (n = 15) or a Cobe Spectra (n = 14) blood cell separator. The volume of blood processed was the same for each machine (8.4 ± 1.0 L; range = 4.9–9.4 L for the CS3000 and 8.9 ± 1.0 L; range 6.7–10.9 L; P = 0.71). The components collected with the CS3000 contained more mononuclear cells (39.6 ± 21.9 × 10⁹ compared with 26.9 ± 5.6 × 10⁹, P = 0.02) and fewer neutrophils (1.38 ± 1.88 × 10⁹ compared with 5.53 ± 8.71 × 10⁹, = 0.001). The total number of CD34+ cells collected with the two instruments was the same (470 ± 353 × 10⁶ for the CS3000 and 419 ± 351 × 10⁶ for the Spectra; P = 0.64) as was the number of CD34+ cells collected per litre of whole blood processed (55.9 ± 42.0 × 10⁶ L^?1 compared with 45.9 ± 37.9 × 10⁶ L^?1; P = 0.59). The mononuclear cell collection efficiency was greater for the CS3000 (82.4 ± 54.9% compared with 53.3 ± 14.1; P = 0.04) but the CD34+ cell collection efficiencies were the same (87.4 ± 61.1% for the CS3000 compared with 56.3 ± 23.5% for the Spectra; P = 0.07). In conclusion, both blood cell separators collected components which contained large numbers of CD34+ cells, but those collected with the CS3000 contained fewer neutrophils and the CS3000 was more efficient at collecting mononuclear cells.     

Dynamics of monocyte count: a good predictor for timing of peripheral blood stem cell collection

To investigate potential predictive parameters for successful collection of autologous peripheral blood stem cells (PBSC), 60 consecutive first mobilization attempts and 145 leukapheresis procedures for patients with hematologic malignancies (multiple myeloma: n = 20; acute leukemia: n = 27; lymphoma: n = 13) were analyzed. All patients underwent chemotherapy and granulocyte-colony stimulating factor combined mobilization protocols. PBSC collection began when white blood cell (WBC) count rebounded to >1.0 × 10(9)/L. Poor mobilization (PM) was defined as <2.0 × 10(6)/kg of ideal body weight CD34+ cells were collected from at least three leukapheresis procedures. PM incidence was 15% (9/60). On the first apheresis day, CD34+ cell yield was closely associated with the final yield. Failure to reach the first-day target of 0.7 × 10(6) CD34+ cells/kg was perfectly matched with PM. Circulating WBC and monocyte (MO) counts preleukapheresis had a positive correlation with final CD34+ cell yield. For the first-day apheresis target, receiver operator characteristic (ROC) curve analysis showed that MO count had an area under the curve (AUC) of 0.806 (P = 0.004). An optimal predictive cutoff value for MO count was 1.455 × 10(9)/L with both high sensitivity and specificity of 0.739 and 0.899, respectively. Patients who began leukapheresis with an MO count of ≥1.455 × 10(9)/L accomplished more successful first-day collections than those of their counterparts (P = 0.021). ROC analysis also showed preapheresis WBC count had a high AUC of 0.768 (P = 0.012). However, we could not find a WBC indicator to initiate leukapheresis. In conclusion, circulating MO count after mobilization is a helpful parameter to determine the optimal time point for starting a PBSC collection.     

rhG-CSF动员健康供者CD34^＋细胞产率的影响因素分析

为探讨rhG—CSF动员健康供者年龄、性别等因素对采集物CD34^＋细胞产率的影响,分析61例健康供者外周血采集物CD34^＋细胞数量与自身特点的相关性,并进行多因素回归分析。以供者性别、年龄、身高、体重、体重指数（BMI）和采集时间作为研究参数,外周血采集物单核细胞计数、CD34^＋细胞占有核细胞百分比、CD34^＋细胞计数、CD34^＋细胞每公斤体重（供者）计数的均值作为研究变量。结果表明,供者年龄是影响CD34^＋细胞产率主要因素,呈中等负相关（-0．60〈r〈-0．45,P〈0．005）。偏相关分析排除身高、体重、BMI的影响,年龄仍和CD34^＋细胞产率呈中等负相关（-0．50〈r〈-0．35,P〈0．02）。BMI仅与CD34^＋细胞每公斤体重计数呈微弱负相关（r=-0．297,P〈0．05）,性别对CD34^＋细胞产率无明显影响,CD34^＋细胞计数的差别仅出现在男性和女性低龄组（年龄〈35岁）间,男性身高、体重、BMI为CD34^＋细胞计数增加的有利因素。供者采集时间为给药后第4天采集,70％供者CD34^＋细胞产率达峰值。结论：年龄应作为供者选择的首要因素,性别、身高、体重和BMI对CD34^＋细胞产率的影响是次要的。     

重组人白介素11联合粒细胞集落刺激因子动员的自体外周血造血干细胞移植

本研究旨在探索重组人白介素11（rhIL—11）联合重组人粒细胞集落刺激因子（rhG—CSF）动员外周血造血干细胞进行自体外周血干细胞移植的作用。16例预行自体外周血干细胞移植的非霍奇金淋巴瘤及急性髓系白血病患者随机分为实验组（rhIL-11联合rhG—CSF动员）及对照组（rhG—CSF动员），两组均在动员性化疗后血象下降至最低值有回升迹象时应用rhIL—11及rhG—CSF；rhG—CSF5μg/（kg·d）动员中位时间5．5天，rhIL—1150μg/（kg·d）动员中位时间4天；动员后观察外周血白细胞和血小板计数，以及干细胞采集物单个核细胞、CD34^＋细胞、CFU—GM集落数的变化；按常规进行自体外周血干细胞移植后，观察粒细胞及血小板植活时间及单采血小板输注量。结果显示：实验组及对照组动员后外周血白细胞和血小板计数，以及干细胞采集物单个核细胞、CD54^＋细胞及CFU—GM集落数无显著性差异（P〉0．05）。自体外周血干细胞移植后，实验组中性粒细胞数≥0.5×10^9／L的中位时间为10．5天，对照组中为13天．实验组比对照组提前2.5天（P〈0．05）。实验组血小板数≥20×10^9／L的中位时间为11.5天，对照组为13天，实验组比对照组提前1.5天（p〈0．05）。实验组输注单采血小板中住数为3.5单位，对照组为5单位，实验组比对照组减少1．5单位（P〈0．05）。实验组使用动员剂的不良反应主要有低热、乏力、感冒样症状、食欲不振、头晕、肌肉酸痛等，对照组仅出现低热，患者对以上症状均可以耐受，停药后症状自行消失。结论：rhIL—11联合rhG—CSF动员外周血造血干细胞安全有效，在自体外周血干细胞移植后造血重建较快，单采血小板输注量少。     

Factors Associated with Intention to Donate Hematopoietic Stem Cells among Blood Donors

IntroductionPast studies pay little attention to the intention to donate hematopoietic stem cells (HSC) among blood donors. This study investigated the level of and the influence of socio-demographic characteristics, knowledge, attitude, subjective norm and self-efficacy on the intention to donate HSC among blood donors.MethodsThis cross-sectional study recruited blood donors at selected public hospitals in the Malaysian State of Sarawak in 2019. A structured questionnaire was developed based on the review of relevant literature. It gathered information on socio-demographic characteristics, knowledge, attitude, subjective norm and self-efficacy on the intention to donate HSC. Variables with a p value <0.200 in bivariate analysis were included in the variable selection for regression modeling to examine their associations with the intention to donate HSC.ResultsA total of 569 blood donors participated (94.5% response rate). Overall, 87.1% reported a positive intention to donate HSC. In the regression model, the factor with the greatest association with intention to donate HSC was subjective norms about HSC donation (β = 0.35, 95% CI 0.27–0.42), followed by attitude about regulations of HSC donation (β= 0.21, 95% CI 0.13–0.35), self-efficacy on HSC donation (β = 0.15, 95% CI 0.09–0.32), attitude about the potential side effects of HSC donation (β = 0.14, 95% CI 0.02–0.10) and highest education level (β = 0.10, 95% CI 0.03–0.44).ConclusionsThe findings can be used to formulate a better strategy in promoting HSC donation among blood donors in the region.