High-dose Chemotherapy Combined with Autologous Hematopoietic Stem Cell Transplantation as Frontline Therapy for Intermediate/High-risk Diffuse Large B Cell Lymphoma

The role of autologous hematopoietic stem cell transplantation(auto-HSCT)following high-dose chemotherapy has been validated and accepted as a standard treatment for patients with relapsed diffuse large B-cell lymphoma(DLBCL).However,its clinical efficacy as frontline therapy remains to be elucidated.This study aimed to examine the feasibility of frontline auto-HSCT for newly diagnosed intermediate/high-risk DLBCL patients.We retrospectively reviewed the data of 223 patients treated with frontline auto-HSCT or chemotherapy alone(year 2008-2014)from four hospitals.The median follow-up time was 29.4 months.Between the two treatment arms among the intermediate/high-risk DLBCL patients,the 3-year overall survival(OS)and progression-free survival(PFS)rates of patients given frontline auto-HSCT were 87.6%and 81.9%,respectively,and the chemotherapy-alone group showed 3-year OS and PFS rates of 64.9%and 59.59%,respectively.Compared with the chemotherapy-alone group,the frontline auto-HSCT could eliminate the adverse impact of non-germinal center B-cell(GCB)type.In addition,in the frontline auto-HSCT group,patients who achieved complete response(CR)at auto-HSCT had a longer survival time than those who did not achieve CR.Our results suggested that frontline auto-HSCT could improve the prognosis of intennediate/high-risk DLBCL patients.

COVID-19 impact in Crohn’s disease patients submitted to autologous hematopoietic stem cell transplantation

BACKGROUND Severe acute respiratory syndrome coronavirus 2 is the virus responsible for coronavirus disease 2019(COVID-19),a disease that has been blamed for inducing or exacerbating symptoms in patients with autoimmune diseases.Crohn's disease(CD)is an inflammatory bowel disease that affects genetically susceptible patients who develop an abnormal mucosal immune response to the intestinal microbiota.Patients who underwent hematopoietic stem cell transplantation(HSCT)are considered at risk for COVID-19.AIM To describe for the first time the impact of COVID-19 in CD patients who had undergone autologous,non-myeloablative HSCT.METHODS In this descriptive study a series of 19 patients were diagnosed with positive COVID-19.For two patients there were reports of the occurrence of two infectious episodes.Parameters related to HSCT,such as time elapsed since the procedure,vaccination status,CD status before and after infection,and clinical manifestations resulting from COVID-19,were evaluated.RESULTS Among the patients with COVID-19,three,who underwent Auto HSCT less than six months ago,relapsed and one,in addition to the CD symptoms,started to present thyroid impairment with positive anti-TPO.Only one of the patients required hospitalization for five days to treat COVID-19 and remained in CD clinical remission.Nine patients reported late symptoms that may be related to COVID-19.There were no deaths,and a statistical evaluation of the series of COVID-19 patients compared to those who did not present any infectious episode did not identify significant differences regarding the analyzed parameters.CONCLUSION Despite the change in CD status in three patients and the presence of nine patients with late symptoms,we can conclude that there was no significant adverse impact concerning COVID-19 in the evaluated patients who underwent HSCT to treat CD.

HIGH DOSE CHEMORADIOTHERAPY WITH AUTOLOGOUS HEMATOPOIETIC STEM CELL TRANSPLANTATION IN THE TREATMENT OF ADVANCED HODGKIN's LYMPHOMA:A REPORT OF 11 CASES

Objective: High dose therapy (HDT) with autologous hematopoietic stem cell transplantation (ASCT) has become one of the important salvage treatments for the Hodgkin抯 Lymphoma patients with relapsed or resistant disease, but its role as the primary treatment remains indefinite. This study was designed to further evaluate its status in the combined modality treatment, especially, to discuss its value in the primary treatment of the patients who had advanced disease with poor prognostic factors. Methods: Eleven patients who had advanced or relapsed disease with poor prognostic factors were enrolled in this study. Among them, 9 cases had primary treatment, and 2 cases had secondary treatment; one patient received autologous bone marrow transplantation (ABMT), and 10 patients received autologous peripheral blood stem cell transplantation (APBSCT). After induction treatment 4 cases achieved complete response (CR) and 7 cases achieved partial response (PR). High dose chemotherapy combined with total body irradiation (TBI) or total lymph node irradiation (TLI)/subtotal lymph node irradiation (STLI) were adopted in 7 cases and only high dose chemotherapy were adopted in 4 cases as the transplant preparative regimens. 5 cases received complementary irradiation in the primary sites after transplant. Results: The patients who had CR before transplantation were given consolidative therapy. Among the rest with PR, 2 cases achieved CR, 1 case PR, and 4 cases SD. Furthermore all these patients who maintained SD had bone involvement. With a median follow-up for all patients of 13(1-80) months, all of them are alive currently. Four cases are event-free survival (EFS); 4 cases with bone involvement are progression-free survival (PFS); 3 cases experienced relapse after transplant, one of them is EFS for 42 months again after a local relapsed site irradiation; the other two cases are being given further salvaged treatment now. According to the Life Tables method, the cumulative probability of 6-year PFS and OS is 55.68% and 100% respectively. The dominating transplant- related toxicity was bone marrow suppression in grades IV. No obvious cardiac, hepatic, and nephritic toxicity was found. No transplant related mortality. Conclusion: HDT combined with ASCT is a method worthwhile to further study for the treatment of the patients with advanced or relapsed Hodgkin抯 Lymphoma with poor prognostic factors.

Autologous hematopoietic stem cell transplantation in chemotherapy-sensitive lymphoblastic lymphoma: treatment outcome and prognostic factor analysis

Objective： The study evaluated the effectiveness of autologous hematopoietic stem cell transplantation （AHSCT） in the treatment of lymphoblastic lymphoma （LL）. Methods： We relxospectively analyzed the data from 41 patients with chemotherapy-sensitive LL who underwent hematopoietic stem cell transplantation （HSCT） from December 1989 to December 2009 in a single institution. Results： HSCT was conducted as first-line consolidation therapy and salvage therapy in 36 and 5 patients, respectively. The median follow-up was 97.1 months （range, 24.6-173.1 months）. The 5-year overall survival （OS） and event-free survival （EFS） rate were 64% and 47% for the initially treated patients, respectively, and were both 20% for the relapsed ones. Bone marrow （BM） involvement and chemotherapy cycles prior to transplantation were identified as significant prognostic factors for EFS in multivariate analysis. Conclusions These results confirm that AHSCT is a reasonable option for chemotherapy-sensitive LL patients in first complete remission （CR1）.

Prognostic value of ^(18)F-fluorodeoxyglucose positron emission tomography using Deauville criteria in diffuse large B cell lymphoma treated with autologous hematopoietic stem cell transplantation

Objective: High-dose chemotherapy(HDC) followed by autologous hematopoietic stem cell transplantation(auto-HSCT) plays an important role in improving outcomes of diffuse large B cell lymphoma(DLBCL) patients.18 F-fluorodeoxyglucose(18 F-FDG) positron emission tomography(PET)/computed tomography(CT) has been widely accepted in response assessment and prediction of prognosis in DLBCL. Here, we report the value of 18 FFDG PET/CT pre-and post-HSCT in predicting outcomes of patients with DLBCL.Methods: DLBCL patients who had PET/CT scan before and after HSCT were included. PET results were interpreted based upon Deauville criteria. The prognostic value of 18 F-FDG PET/CT in auto-HSCT was evaluated.Results: Eighty-four patients were enrolled. In univariate analysis, pre-and post-HSCT PET findings were correlated with 3-year progression-free survival(PFS) [hazard ratio(HR)=4.391, P=0.001; HR=7.607, P<0.001] and overall survival(OS)(HR=4.792, P=0.008; HR=26.138, P<0.001). Patients receiving upfront auto-HSCT after firstline treatment had better outcomes than relapsed/refractory DLBCL patients(3-year PFS, P<0.001; 3-year OS,P<0.001). In the relapsed/refractory patients, pre-and post-HSCT PET findings were also associated with 3-year PFS(P=0.003 vs. P<0.001) and OS(P=0.027 vs. P<0.001). A significant correlation was observed between clinical response to chemotherapy before auto-HSCT and outcomes of patients in the entire cohort(3-year PFS, P<0.001;3-year OS, P<0.001) and in the subgroup of 21 patients with positive pre-HSCT PET(3-year PFS, P=0.084; 3-year OS, P=0.240). A significant association between survival and post-HSCT PET findings was observed in multivariate analysis(HR=5.168, P<0.001).Conclusions: PET results before and after HSCT are useful prognostic factors for DLBCL patients receiving HSCT. Patients who responded to chemotherapy, even those with positive pre-HSCT PET, are appropriate candidates for auto-HSCT.

THE PRELIMINARY RESULTS OF TREATMENT OFADVANCED AND RECURRENT MALIGNANT LYMPHOMA BY BEAC REGIMEN SUPPORTED WITH AUTOLOGOUS HEMATOPOIETIC STEM CELLS TRANSPLANTATION

Objective: High dose chemotherapy supported by autologous hematopoietic stem cells transplantation (AHSCT) has developed dramaticly in recent years and become the most effective approach to improve radical treatment for the chemo-sensitive lymphoma. The purposes of this study was to evaluate the efficacy and tolerance of preparative regimen BEAC and hematopoietic reconsti- tution after high dose chemotherapy in Chinese patients with advanced and recurrent lymphoma. Methods: After confirmed complete or partial remission from conventional chemotherapy, 24 patients with advanced or recurrent lymphoma including 1 recurrent HD and 23 NHL, 16 male and 8 female with median age of 29 (13-50) years, were enrolled into this study and treated by BEAC regimen (CTX 3600-4000 mg/m2, VP-16 1200 mg/m2. BCNU 300 mg/m2 and Ara-C 1500-2000 mg/m2). 3 patients were supported by ABMT and 21 by APBSCT. Mobilization regimen for APBSCT was CTX 3500 mg/m2 + G-CSF 3.5-5 mg/kg + Dexamethasone 10 mg. Autologous hematopoietic stem cells was re-infused 24-48 h after completion of high dose chemotherapy. Results: MNC 1.3 (1.0-1.7) 108/kg and MNC 1.8 (1.0-4.4) 108, CFU-GM 5.1 (1.9-9.6) 105/kg plus CD34 + cells 2.9 (1.9-8.7) 106/kg were re-infused in the ABMT group and APBSCT group respectively. All patients obtained prompt and sustained hematopoietic reconstitution. ANC 0.5 109/L and Pt 2.0 109/L were at day 9 (6-17) and day 10 (0-31) respectively. 16 patients were alive with median 21 (2-69) months follow-up till end of May, 2001. 1, 2 and 3 years survival rate were 60.5%, 50.1% and 50.1%, respectively. Non-hematologic toxicity was mild and tolerable. Conclusions: High dose chemotherapy supported by AHSCT in the treatment of previously-untreated poor- prognostic and recurrent lymphoma was a safe and effective modality. Further investigation was warranted.

Medical,ethical,and legal aspects of hematopoietic stem cell transplantation for Crohn’s disease in Brazil

Crohn's disease(CD)is a chronic inflammatory bowel disease that can affect any part of the gastrointestinal tract.The etiology of CD is unknown;however,genetic,epigenetic,environmental,and lifestyle factors could play an essential role in the onset and establishment of the disease.CD results from immune dysregulation due to loss of the healthy symbiotic relationship between host and intestinal flora and or its antigens.It affects both sexes equally with a male to female ratio of 1.0,and its onset can occur at any age,but the diagnosis is most commonly observed in the range of 20 to 40 years of age.CD diminishes quality of life,interferes with social activities,traumatizes due to the stigma of incontinence,fistulae,strictures,and colostomies,and in severe cases,affects survival when compared to the general population.Symptoms fluctuate between periods of remission and activity in which complications such as fistulas,strictures,and the need for bowel resection,surgery,and colostomy implantation make up the most severe aspects of the disease.CD can be progressive and the complications recurrent despite treatment with anti-inflammatory drugs,corticosteroids,immunosuppressants,and biological agents.However,over time many patients become refractory without treatment alternatives,and in this scenario,hematopoietic stem cell transplantation(HSCT)has emerged as a potential treatment option.The rationale for the use of HSCT for CD is anchored in animal studies and human clinical trials where HSCT could reset a patient's immune system by eliminating disease-causing effector cells and upon immune recovery increase regulatory and suppressive immune cells.Autologous HSCT using a non-myeloablative regimen of cyclophosphamide and anti-thymocyte globulin without CD34+selection has been to date the most common transplant conditioning regimen adopted.In this review we will address the current situation regarding CD treatment with HSCT and emphasize the medical,ethical,and legal aspects that permeate the procedure in Brazil.

Autologous hematopoietic stem cell transplantation and conventional insulin therapy in the treatment of children with newly diagnosed type I diabetes： long term follow-up

Background It has been indicated that autologous hematopoietic stem cell transplantation （AHST） is a promising treatment to adults with type 1 diabetes, however, the application of AHST therapy to children with type 1 diabetes still needs more data. The aim of this study was to assess the clinical effect of immune intervention combined with AHST and conventional insulin therapy in the treatment of children with newly diagnosed type 1 diabetes. Methods This 1：2 matched case-control study was comprised of 42 children who were newly diagnosed with type 1 diabetes in the Department of Endocrinology, Beijing Children＇s Hospital from 2009-2010. The case group included 14 patients, who were treated with AHST within the first 3 months after being diagnosed with diabetes at request of their parents during 2009-2010. The control group included 28 patients with newly diagnosed type 1 diabetes at the same period of hospitalization. We compared the baseline and follow-up data of them, including ketoacidosis onset, clinical variables （glycosylated hemoglobin （HbAlc）, insulin dosage and serum C-peptide）. Results The clinical characteristics of the patients was comparable between the case group and the control group. At 6-12 months （（10.7±4.2） months） after AHST treatment, we found 11 patients in the case group did not stop the insulin therapy, three cases stopped insulin treatment for 2, 3 and 11 months, respectively. No diabetic ketoacidosis （DKA） occurred after transplantation in all the patients in the case group. HbAlc in the control group was significant lower than that in the case group （P 〈0.01）, while the insulin dosage and serum C-peptide were not significant different between the two groups （P 〉0.05）. In order to eliminate the honeymoon effect, we performed final follow-up at the 3-5 years （（4.2±1.8） years） after AHST treatment, and found that HbAlc in the control group was still lower than that in the case group （P 〈0.01）; however, the insulin dosage and serum C-peptide were not significantly different between the two groups （P 〉0.05）. Moreover, the insulin dosage was not significant different from baseline to follow-up period in the case group. Conclusion AHST treatment showed no advantage in effectiveness in children with newly diagnosed type 1 diabetes, both in insulin dose and long term blood glucose control. Chin med J2014;（14）：2618-2622

Comparison of allogeneic or autologous hematopoietic stem cell transplant for high-risk peripheral T cell lymphomas

Objective To evaluate the efficacy of auto-HSCT and allo-HSCT in the treatment of high risk peripheral T cell lymphoma(PTCL).Methods From July 2007 to July 2014,60 cases of high risk PTCL were analyzed retrospectively.Results All 60 patients were at high risk group(carried with IPI≥3),with a median age of

First line vs delayed transplantation in myeloma:Certainties and controversies

Since the middle of 1990 s autologous stem cell trans-plantation has been the cornerstone for the treatment of young patients with multiple myeloma(MM). In the last decade the introduction of novel agents such as immunomodulatory drugs(IMi Ds) and proteasome inhibitors(PI), has dramatically changed the therapeutic scenario of this yet incurable disease. Due to the impressive results achieved with IMi Ds and PI both in terms of response rates and in terms of progression free and overall survival, and to the toxicity linked to high dose therapy and autologous stem cell transplantation(ASCT), a burning question nowadays is whether all young patients should be offered autotransplanta-tion up front or if this should be reserved for the time of relapse. This article provides a review of the data available regarding ASCT in MM and of the current opinion of the scientific community regarding its optimal timing.

大剂量美法仑联合自体造血干细胞移植治疗多发性骨髓瘤的临床分析

目的:探讨大剂量美法仑联合自体造血干细胞移植治疗多发性骨髓瘤的安全性、疗效和预后。方法:回顾2020年3月至2022年10月在皖南医学院弋矶山医院血液科进行自体移植一线巩固治疗的17例初诊多发性骨髓瘤患者的临床资料,分析治疗的安全性、疗效和预后。结果:17例患者中,男性10例,女性7例,中位年龄56(45-64)岁。干细胞植入率100%,中性粒细胞中位植入时间为+10(9-12)d,血小板中位植入时间为+12(10-21)d。口腔黏膜炎及肠道感染发生率100%,肺部感染2例,泌尿系感染1例,皮肤感染1例;11例患者发生血清淀粉酶一过性升高。移植后评估13例获得CR以上疗效,CR率较移植前有提高趋势(13/17 vs 8/17;P=0.078)。中位随访18(6-36)个月,15例无进展存活,1例出现疾病进展,1例因临床复发放弃治疗而死亡,2年OS率约90.0%,2年PFS率约83.9%。结论:大剂量美法仑联合自体造血干细胞移植一线巩固治疗多发性骨髓瘤能加深患者缓解深度,进一步提高疗效,而且移植相关并发症可控,值得在临床中推广。

自体造血干细胞移植治疗多发性骨髓瘤的进展

多发性骨髓瘤是一种血液学恶性肿瘤,在过去的几十年里,大剂量美法仑联合自体造血干细胞移植已成为初治多发性骨髓瘤患者的核心治疗方案。诱导治疗、自体造血干细胞移植以及后续巩固和维持治疗是目前多发性骨髓瘤治疗的基本框架。达雷妥尤单抗等抗CD38单克隆抗体的引入改变了适合移植的多发性骨髓瘤患者的治疗模式,四联疗法成为新的标准诱导治疗。随着强效新型免疫疗法的引入,骨髓瘤的治疗格局正在发生变革性转变。笔者拟对在新药及新疗法时代,自体造血干细胞移植在多发性骨髓瘤中的研究进展进行综述。

自体造血干细胞移植治疗急性髓系白血病——理念与方案的创新

自体造血干细胞移植(autologous hematopoietic stem cell transplantation,auto-HSCT)是治疗急性髓系白血病(acute myeloid leukemia,AML)的有效手段,尤其是对于首次完全缓解预后良好组、部分预后中等组的AML、复发后再次完全缓解的急性早幼粒细胞白血病及某些特殊核型的AML患者。然而,尽管auto-HSCT在这些情况下显示出显著的疗效,但治疗过程中仍可能遇到诸多挑战和并发症,这要求医疗团队不断探索和优化治疗策略以提高患者的治愈率和生活质量。基于此,本文将综述auto-HSCT治疗AML的最新理念和方案,以期为进一步优化该治疗方式提供潜在的策略。

复发难治弥漫大B细胞淋巴瘤的二线治疗:自体造血干细胞移植或嵌合抗原受体T细胞治疗?

弥漫性大B细胞淋巴瘤(DLBCL)是最常见的侵袭性淋巴瘤亚型。一线规范的治疗后,60%的患者可以实现治愈,但是仍有40%的患者复发或者难治,预后不佳。挽救性化疗联合自体造血干细胞移植(ASCT)是化疗敏感患者的标准二线治疗方案。然而,伴随着新的治疗方式,如嵌合抗原受体T细胞疗法、双特异性抗体、靶向药物等的出现,标准二线治疗方案受到一定的挑战,尤其对于挽救性化疗不够敏感的患者。本文对目前复发难治DLBCL的二线治疗的安全性和疗效及适应证进行综述,以探讨复发难治DLBCL的最佳治疗选择。

TBM预处理方案自体造血干细胞移植治疗高危神经母细胞瘤患儿疗效分析

目的研究TBM[即塞替派(thiotepa)+白舒菲(busulfan)+美法伦(melphalan)]预处理方案自体造血干细胞移植治疗高危神经母细胞瘤患儿的临床疗效。方法选取2021年11月5日至2022年9月8日于新疆维吾尔自治区人民医院血液病科移植中心接受TBM预处理自体造血干细胞移植患儿7例为研究对象,评估造血重建情况及移植相关不良反应。分析7例高危神经母细胞瘤患儿临床疗效和疗效相关指标,以及随访结果和治疗前后的营养指标。结果患儿治疗后及末次随访不同时期的临床疗效比较,差异无统计学意义(P>0.05)。7例高危神经母细胞瘤患儿中位年龄6.2岁(2~13岁),所有患儿均移植回输前期采集冻存自体干细胞,中位计数单个核细胞(MNC)为12.17×10^(8)/kg[(8.65~28.81)×10^(8)/kg],CD34^(+)为4.15×10^(6)/kg[(2.11~13.12)×10^(6)/kg]。所有患儿均获得造血重建,中性粒细胞中位植入时间为11 d(9~18 d),血小板植入时间为16 d(13~31)d。随访期间所有患儿均存活,其中发生Ⅲ级以上黏膜炎4例,发生率为51.7%;发生Ⅲ~Ⅳ级呕吐腹泻等胃肠道不良反应5例,发生率为71.4%;发生药物性肝损伤2例,发生率为28.5%;未见神经系统、肾脏以及肝窦隙阻塞综合征等预处理相关毒性反应。患儿治疗前后的前白蛋白(PAB)、清蛋白(ALB)及血红蛋白(Hb)等营养指标比较,差异无统计学意义(P>0.05)。结论TBM方案用于高危神经母细胞瘤患儿自体造血干细胞移植预处理中的疗效较佳,且不良反应常见可控,然而仍需进一步扩大病例数临床验证。

早期序贯治疗联合ASCT对中高危多发性骨髓瘤的临床疗效及对PD-1/PD-L1、T细胞和B细胞功能的影响

目的:分析早期序贯治疗联合自体造血干细胞移植(ASCT)对中高危多发性骨髓瘤的临床疗效及对PD-1/PD-L1、T细胞和B细胞功能的影响。方法:选择2019年1月—2022年5月南阳市中心医院收治的90例中高危多发性骨髓瘤患者作为研究对象,依照随机信封法分为观察组和对照组。对照组患者采用常规化疗方案进行治疗,观察组在对照组的基础上采用早期序贯治疗联合ASCT方案干预和治疗。干预治疗半年后对患者临床疗效进行评估,治疗前及治疗后半年时检测外周血中CD3^(+)T细胞、CD4^(+)T细胞、CD8^(+)T细胞、PD-1及PD-L1蛋白表达水平,检测受试者血清中T细胞相关细胞因子IFN-γ、TNF-α及B细胞相关抗体IgA、IgM和IgG水平情况。结果:观察组治疗临床疗效显著优于对照组,差异有统计学意义(χ^(2)=13.586,P<0.05);治疗后,两组患者血中CD3^(+)T细胞、CD4^(+)T细胞水平均显著升高,CD8^(+)T细胞水平显著降低,差异有统计学意义(t=7.299、2.521、12.629,P<0.05);治疗后,两组患者血清中PD-1及PD-L1蛋白均显著降低,差异有统计学意义(t=16.315、11.161,P<0.05);治疗后,两组患者血清中IFN-γ、TNF-α蛋白均显著升高,差异有统计学意义(t=30.046、32.084,P<0.05);治疗后,两组患者血清中IgA蛋白显著降低,IgM和IgG蛋白均显著升高,差异有统计学意义(t=47.013、50.959、27.694,P<0.05)。结论:联合早期序贯治疗联合ASCT对中高危多发性骨髓瘤患者干预可有效提高临床疗效,控PD-1及PD-L1水平,改善T细胞和B细胞功能。

COG方案大剂量化疗联合串联自体造血干细胞移植治疗高危神经母细胞瘤的疗效及安全性

目的:探讨以北美儿童肿瘤专业组(Children's Oncology Group,COG)方案大剂量化疗(high-dose chemotherapy,HDC)联合串联自体造血干细胞移植(autologous hematopoietic stem cell transplantation,ASCT)治疗儿童高危神经母细胞瘤(neuroblastoma,NB)的安全性和疗效。方法:研究纳入自2022年07月至2023年06月于我科接受ASCT治疗的9例高危NB患者,均按照COG高危NB自体移植方案给药,首次移植预处理采用大剂量塞替派(thiotepa,TT)联合环磷酰胺(cyclophosphamide,CTX)为预处理方案,第二次移植预处理给予大剂量美法兰(melphalan,Mel)、卡铂(carboplatin,CBP)联合依托泊苷(etoposide,VP16)方案(CEM方案),移植后分别对其造血重建、并发症及疗效进行观察评估。结果:9例均为男孩,发病时大多伴多发骨转移,其中Ⅳ期8例,Ⅲ期1例,发病时除1例未检外其余8例至少均有2种分子遗传学异常;第一次移植预处理后,髓外不良反应主要表现为口腔黏膜炎、腹泻和呕吐等。中性粒细胞植入平均时间为10.44天,血小板(platelet,PLT)植入中位时间为15天。同一组患者接受串联第二次移植时与第一次移植时植入速度、不良反应的发生程度等无明显统计学差异。中位随访时间330天,至观察期末均无进展生存,疾病评估较移植前好转。结论:以COG方案HDC联合串联ASCT治疗儿童高危NB安全性好,疗效佳,双次移植较单次移植后观察到了更好的临床疗效,仍需扩大样本量延长观察时间,以确定该治疗策略的长期疗效。

负载自体肿瘤抗原的DC-CIK细胞联合自体造血干细胞移植治疗难治性淋巴瘤的临床研究

目地观察负载自体肿瘤抗原的DC-CIK细胞联合自体造血干细胞移植治疗难治性淋巴瘤的疗效。方法选取难治性淋巴瘤35例,采用MAC预处理方案,用自体淋巴瘤抗原致敏DC-CIK细胞,于移植预处理后5—10d,将DC-CIK细胞回输给患者。结果35例难治性淋巴瘤中,29例完全缓解(82.86%),4例部分缓解(14.43%),移植过程中死亡2例(5.71%)(均死于严重混合性感染)。所有完全缓解和部分缓解病例均随访3—49个月:4名部分缓解患者分别于移植后3、6、10、13个月后病情进展死亡;完全缓解患者中有3人于移植后11、17、20个月再次复发死亡;现存活26例。结论负载自体肿瘤抗原的DC-CIK细胞联合自体造血干细胞移植治疗难治性淋巴瘤高于单纯自体外周血造血干细胞的疗效,且无明显毒副作用。

自体外周血造血干细胞移植术治疗弥漫大B细胞淋巴瘤的临床研究

目的观察自体外周血造血干细胞移植术(Auto-PBSCT)治疗弥漫大B细胞淋巴瘤(DLBCL)的疗效及毒副反应,并探讨术后维持治疗、国际预后指数(IPI)积分等对疗效的影响。方法 21例Ann Arbor分期Ⅲ、Ⅳ期的DLBCL患者在大剂量化疗后行Auto-PBSCT,术后予干扰素或利妥昔单抗维持治疗,观察术后临床疗效、毒副反应及随访结果。结果移植术后总有效率为81.0%。随访至2014年12月,1年总存活率为81.0%、无事件存活率为66.7%;3年总存活率为47.6%、无事件存活率为33.3%。IPI评分高中危及高危患者术后均复发或进展,5例行二次Auto-PBSCT强化治疗,术后均达CR。结论大剂量化疗+Auto-PBSCT是Ⅲ、Ⅳ期DLBCL患者的有效治疗方案,术后是否维持治疗、IPI积分的高低可能对术后疗效产生影响,复发、难治或具有高复发危险因素的患者,可考虑行二次Auto-PBSCT。

自体造血干细胞移植治疗高危神经母细胞瘤临床分析

目的总结应用大剂量化疗联合自体造血干细胞移植(hematopoietic stem cell transplantation,HSCT)的高危神经母细胞瘤患儿的临床特点及预后。方法选取2012年9月至2020年5月首都儿科研究所附属儿童医院血液肿瘤科收治的经病理诊断为神经母细胞瘤、临床危险度为高危且进行了大剂量化疗联合自体HSCT的13例患儿,总结分析其临床特征、移植过程及随访结果。结果13例患儿中卡铂/依托泊苷/马法兰(carboplatin/etoposide/melphalan,CEM)方案预处理8例,白消安/马法兰(busulfan/melphalan,Bu/Mel)方案5例。13例患儿造血功能均获得满意重建,所有患儿预处理期间均未发生Ⅲ级以上器官毒性,发生Ⅰ~Ⅱ级黏膜毒性4例(30.8%),I级消化道毒性3例(23.1%),移植期间肠道感染1例(7.7%),巨细胞病毒(cytomegalovirus,CMV)血症2例(15.4%),念珠菌血症1例(7.7%)。移植后持续完全缓解8例,疾病稳定带瘤生存2例,体格及智力发育同正常同龄儿,心肝肾肺功能均正常;复发3例,均为移植前部分缓解患儿,分别于移植后半年、1年及2年复发,复发后均死于疾病进展。结论高危神经母细胞瘤患儿以CEM或Bu/Mel为预处理方案进行自体HSCT安全有效,未见远期并发症发生,Bu/Mel方案较CEM方案的不良反应发生率低。移植前缓解状态影响预后。