BACKGROUND Monomorphic epitheliotropic intestinal T-cell lymphoma(MEITL)is a rare and rapidly progressive intestinal T-cell non-Hodgkin lymphoma associated with a very poor prognosis and a median survival of 7 mo.Adva...BACKGROUND Monomorphic epitheliotropic intestinal T-cell lymphoma(MEITL)is a rare and rapidly progressive intestinal T-cell non-Hodgkin lymphoma associated with a very poor prognosis and a median survival of 7 mo.Advances in the identification of MEITL over the last two decades have led to its recognition as a separate entity.MEITL patients,predominantly male,typically present with vague and nonspecific symptoms and diagnosis is predominantly confirmed at laparotomy.Currently,there are no standardized treatment protocols,and the optimal therapy remains unclear.CASE SUMMARY We report a case of MEITL that was initially considered to be gastrointestinal stromal tumor(GIST)and Imatinib was administered for one cycle.The 62-yearold man presented with abdominal pain,abdominal distension,and weight loss of 20 pounds.Within 2 wk,the size of the mass considerably increased on computed tomography scans.The patient underwent surgery followed by chemotherapy with CHOP(cyclophosphamide,doxorubicin,vincristine,and prednisone)and stem-cell transplant.A correct diagnosis of MEITL was established based on postoperative pathology.Immunophenotypically,the neoplastic cells fulfilled the diagnostic criteria for MEITL as they were CD3+,CD4+,CD8+,CD56+,and TIA-1+.CONCLUSION Given that MEITL has no predisposing factor and presents with vague symptoms with rapid progression,the concomitant presence of abdominal symptoms and B symptoms(weight loss,fever,and night sweats)with hypoalbuminemia,anemia,low lymphocytic count and endoscopic findings of diffuse infiltrating type lesions should alert physicians to this rare disease,especially when it comes to Asian patients.Immediate laparotomy should then be carried out followed by chemotherapy and stem-cell transplant.展开更多
Objective To investigate the therapeutic effects of haploidentical hematopoietic stem - cell transplantation ( Haplo - PBSCT) for acute myeloid leukemia in first relapse after complete remission by standard induction ...Objective To investigate the therapeutic effects of haploidentical hematopoietic stem - cell transplantation ( Haplo - PBSCT) for acute myeloid leukemia in first relapse after complete remission by standard induction chemotherapy. Methods Eighty - nine cases of AML in first relapse after complete remission by standard DA展开更多
Background：Steady-state bone marrow （SS-BM） and granulocyte colony-stimulating growth factor-primed BM/peripheral blood stem-cell （G-BM/G-PBSC） are the main stem-cell sources used in allogeneic hematopoietic stem...Background：Steady-state bone marrow （SS-BM） and granulocyte colony-stimulating growth factor-primed BM/peripheral blood stem-cell （G-BM/G-PBSC） are the main stem-cell sources used in allogeneic hematopoietic stem-cell transplantation.Here,we evaluated the treatment effects of SS-BM and G-BM/G-PBSC in human leucocyte antigen （HLA）-identical sibling transplantation.Methods：A total of 226 patients （acute myelogenous leukemia-complete remission 1,chronic myelogenous leukemia-chronic phase 1） received SS-BM,G-BM,or G-PBSC from an HLA-identical sibling.Clinical outcomes （graft-versus-host disease [GVHD],overall survival,transplant-related mortality [TRM],and leukemia-free survival [LFS]） were analyzed.Results：When compared to SS-BM,G-BM gave faster recovery time to neutrophil or platelet （P 〈 0.05）.Incidence of grade Ⅲ-Ⅳ acute GVHD and extensive chronic GVHD （cGVHD） was lower than seen with SS-BM （P 〈 0.05） and similar to G-PBSC.Although the incidence of cGVHD in the G-BM group was similar to SS-BM,both were lower than G-PBSC （P 〈 0.05）.G-BM and G-PBSC exhibited similar survival,LFS,and TRM,but were significantly different from SS-BM （P 〈 0.05）.There were no significant differences in leukemia relapse rates among the groups （P 〉 0.05）.Conclusions：G-CSF-primed bone marrow shared the advantages of G-PBSC and SS-BM.We conclude that G-BM is an excellent stem-cell source that may be preferable to G-PBSC or SS-BM in patients receiving HLA-identical sibling hematopoietic stem-cell transplantation.展开更多
Background:Allogeneic stem-cell transplantation (SCT) is a well-established immunotherapeutic strategy for multiple myeloma (MM) with a potent and often sustained graft-vs.-myeloma effect.This multicenter investigatio...Background:Allogeneic stem-cell transplantation (SCT) is a well-established immunotherapeutic strategy for multiple myeloma (MM) with a potent and often sustained graft-vs.-myeloma effect.This multicenter investigation aimed to analyze the complications and survival of haploidentical SCT in patients with MM,and compare the main outcomes with matched-related donors (MRDs).Methods:Haploidentical and MRD SCT was identified from a cohort of 97 patients with MM who received a myeloablative transplantation in 13 hospitals from May 2001 to December 2017.A matched-pair analysis was designed.For each haplo recipient,the recipients were randomly selected from the MRD group and were matched according to the following criteria:year of the hematopoietic SCT (±2 years),disease status at transplantation,and the length of follow-up.ults:Seventy cases received MRD and 27 received haploidendcal transplantation.The two groups showed no significant ifferences regarding age,gender,cytogenetic risk,and diagnostic stage.The cumulative incidences of non-relapse mortality (NRM) at1 and 3 years based on donor type were 20.5%(95% confidence interval [CI],10.90-30.10%) and 24.2%(95% CI,13.81-34.59%) for the MRD group and 16.80%(95% CI,1.71-31.89%) and 28.70%(95% CI,8.71-48.69%) for the haplo group,respectively.Cumulative incidence of NRM did not differ significantly between the two groups (x2 =0.031,P =0.861).The cumulative incidences of progression-free survival (PFS) and 1 year and 3 years by type of donors were 59.8 %(95 % CI,48.24-71.36 %) and 45.4 %(95 % CI,33.44-57.36%),and 65.6%(95% CI,47.18-84.02%) and 26.8%(95% CI,7.59-46.01%) for MRD and haploidentical donor,respectively.Cumulative incidence of PFS did not differ significantly between the two groups (x2 =0.182,P =0.670).In multivariate analyses,no statistically significant differences were observed between haploidentical and MRD for relapse,NRM,PFS,and overall survival.There were no statistically differences on main outcomes after haploidentical and MRD.Conclusion:Haploidentical SCT could be performed safely and feasibly for patients with MM in need.展开更多
Alzheimer’s disease（AD）,the main cause of dementia,is defined by the combined presence of amyloid-b（Ab）deposition and abnormal tau aggregation[1].Experimental models are critical to obtain a better understanding ...Alzheimer’s disease（AD）,the main cause of dementia,is defined by the combined presence of amyloid-b（Ab）deposition and abnormal tau aggregation[1].Experimental models are critical to obtain a better understanding of AD pathogenesis,and to evaluate the potential of novel therapeutic approaches.The most commonly used AD展开更多
Rice tiller is a specialized grain-bearing branch that contrib- utes greatly to grain production. Therefore, rice tillering is an important agronomic trait and provides a model system for the study of branching in mon...Rice tiller is a specialized grain-bearing branch that contrib- utes greatly to grain production. Therefore, rice tillering is an important agronomic trait and provides a model system for the study of branching in monocots. Owing its importance both to agriculture and to fundamental science, much attention has been given to understand the molecular mechanisms under- lying rice tillering.展开更多
目的:探讨免疫球蛋白重链(IgH)基因重排在多发性骨髓瘤(MM)自体造血干细胞移植(auto-HSCT)后微小残留病监测中的价值。方法:收集2018年-2022年于武汉市第一医院血液内科接受auto-HSCT的26例MM患者的临床资料,通过多重PCR联合毛细管电泳...目的:探讨免疫球蛋白重链(IgH)基因重排在多发性骨髓瘤(MM)自体造血干细胞移植(auto-HSCT)后微小残留病监测中的价值。方法:收集2018年-2022年于武汉市第一医院血液内科接受auto-HSCT的26例MM患者的临床资料,通过多重PCR联合毛细管电泳片段分析法检测IgH重排来评价微小残留病(MRD),对疾病的转归进行相关统计学分析。结果:全部26例MM患者中,男性18例,女性8例,中位年龄59(41-70)岁,移植后中位随访时间33(7-52)个月。与骨髓IgH重排阴性组(17例)比较,移植前骨髓IgH重排阳性(9例)患者移植后3个月达到CR和sCR疗效的比例更低(1/9 vs 14/17),移植后缓解持续的时间(DOR)更短(10.78±4.35 vs 15.88±5.22个月),两组DOR差异有统计学意义(P<0.05);与外周血干细胞采集物IgH重排阴性组(21例)比较,外周血干细胞采集物IgH重排阳性(5例)患者移植后3个月达到CR和sCR的比例更低(0/5 vs 15/21),移植后缓解持续的时间(DOR)更短(9.60±4.83 vs 15.19±5.11个月),两组DOR差异有统计学意义(P<0.05)。在随访期内,移植前骨髓IgH重排阳性的患者有5例(5/9)死亡,IgH重排阴性患者均存活;外周血干细胞采集物IgH重排阳性患者有4例(4/5)死亡,IgH重排阴性患者有1例死亡(1/21)。无论是骨髓还是外周血干细胞采集物标本,IgH重排阳性患者移植后生存时间较IgH重排阴性患者更短(P<0.05)。Logistic回归分析结果显示,性别、疾病分期、初诊时骨髓涂片浆细胞比例、干细胞动员方案、移植前疗效评价(≥CR和<CR)、CD34+细胞计数对移植前骨髓及干细胞采集物IgH重排均无影响(P>0.05)。结论:通过检测接受auto-HSCT的MM患者IgH重排,可以进一步评价MRD的深度,对疾病的疗效及预后判断有一定的指导意义。展开更多
文摘BACKGROUND Monomorphic epitheliotropic intestinal T-cell lymphoma(MEITL)is a rare and rapidly progressive intestinal T-cell non-Hodgkin lymphoma associated with a very poor prognosis and a median survival of 7 mo.Advances in the identification of MEITL over the last two decades have led to its recognition as a separate entity.MEITL patients,predominantly male,typically present with vague and nonspecific symptoms and diagnosis is predominantly confirmed at laparotomy.Currently,there are no standardized treatment protocols,and the optimal therapy remains unclear.CASE SUMMARY We report a case of MEITL that was initially considered to be gastrointestinal stromal tumor(GIST)and Imatinib was administered for one cycle.The 62-yearold man presented with abdominal pain,abdominal distension,and weight loss of 20 pounds.Within 2 wk,the size of the mass considerably increased on computed tomography scans.The patient underwent surgery followed by chemotherapy with CHOP(cyclophosphamide,doxorubicin,vincristine,and prednisone)and stem-cell transplant.A correct diagnosis of MEITL was established based on postoperative pathology.Immunophenotypically,the neoplastic cells fulfilled the diagnostic criteria for MEITL as they were CD3+,CD4+,CD8+,CD56+,and TIA-1+.CONCLUSION Given that MEITL has no predisposing factor and presents with vague symptoms with rapid progression,the concomitant presence of abdominal symptoms and B symptoms(weight loss,fever,and night sweats)with hypoalbuminemia,anemia,low lymphocytic count and endoscopic findings of diffuse infiltrating type lesions should alert physicians to this rare disease,especially when it comes to Asian patients.Immediate laparotomy should then be carried out followed by chemotherapy and stem-cell transplant.
文摘Objective To investigate the therapeutic effects of haploidentical hematopoietic stem - cell transplantation ( Haplo - PBSCT) for acute myeloid leukemia in first relapse after complete remission by standard induction chemotherapy. Methods Eighty - nine cases of AML in first relapse after complete remission by standard DA
文摘Background：Steady-state bone marrow （SS-BM） and granulocyte colony-stimulating growth factor-primed BM/peripheral blood stem-cell （G-BM/G-PBSC） are the main stem-cell sources used in allogeneic hematopoietic stem-cell transplantation.Here,we evaluated the treatment effects of SS-BM and G-BM/G-PBSC in human leucocyte antigen （HLA）-identical sibling transplantation.Methods：A total of 226 patients （acute myelogenous leukemia-complete remission 1,chronic myelogenous leukemia-chronic phase 1） received SS-BM,G-BM,or G-PBSC from an HLA-identical sibling.Clinical outcomes （graft-versus-host disease [GVHD],overall survival,transplant-related mortality [TRM],and leukemia-free survival [LFS]） were analyzed.Results：When compared to SS-BM,G-BM gave faster recovery time to neutrophil or platelet （P 〈 0.05）.Incidence of grade Ⅲ-Ⅳ acute GVHD and extensive chronic GVHD （cGVHD） was lower than seen with SS-BM （P 〈 0.05） and similar to G-PBSC.Although the incidence of cGVHD in the G-BM group was similar to SS-BM,both were lower than G-PBSC （P 〈 0.05）.G-BM and G-PBSC exhibited similar survival,LFS,and TRM,but were significantly different from SS-BM （P 〈 0.05）.There were no significant differences in leukemia relapse rates among the groups （P 〉 0.05）.Conclusions：G-CSF-primed bone marrow shared the advantages of G-PBSC and SS-BM.We conclude that G-BM is an excellent stem-cell source that may be preferable to G-PBSC or SS-BM in patients receiving HLA-identical sibling hematopoietic stem-cell transplantation.
基金grants from Foundation for Innovative Research Groups of the National Natural Science Foundation of China (No. 81621001)National Natural Science Foundation of China (Nos. 81670167 and 81670166).
文摘Background:Allogeneic stem-cell transplantation (SCT) is a well-established immunotherapeutic strategy for multiple myeloma (MM) with a potent and often sustained graft-vs.-myeloma effect.This multicenter investigation aimed to analyze the complications and survival of haploidentical SCT in patients with MM,and compare the main outcomes with matched-related donors (MRDs).Methods:Haploidentical and MRD SCT was identified from a cohort of 97 patients with MM who received a myeloablative transplantation in 13 hospitals from May 2001 to December 2017.A matched-pair analysis was designed.For each haplo recipient,the recipients were randomly selected from the MRD group and were matched according to the following criteria:year of the hematopoietic SCT (±2 years),disease status at transplantation,and the length of follow-up.ults:Seventy cases received MRD and 27 received haploidendcal transplantation.The two groups showed no significant ifferences regarding age,gender,cytogenetic risk,and diagnostic stage.The cumulative incidences of non-relapse mortality (NRM) at1 and 3 years based on donor type were 20.5%(95% confidence interval [CI],10.90-30.10%) and 24.2%(95% CI,13.81-34.59%) for the MRD group and 16.80%(95% CI,1.71-31.89%) and 28.70%(95% CI,8.71-48.69%) for the haplo group,respectively.Cumulative incidence of NRM did not differ significantly between the two groups (x2 =0.031,P =0.861).The cumulative incidences of progression-free survival (PFS) and 1 year and 3 years by type of donors were 59.8 %(95 % CI,48.24-71.36 %) and 45.4 %(95 % CI,33.44-57.36%),and 65.6%(95% CI,47.18-84.02%) and 26.8%(95% CI,7.59-46.01%) for MRD and haploidentical donor,respectively.Cumulative incidence of PFS did not differ significantly between the two groups (x2 =0.182,P =0.670).In multivariate analyses,no statistically significant differences were observed between haploidentical and MRD for relapse,NRM,PFS,and overall survival.There were no statistically differences on main outcomes after haploidentical and MRD.Conclusion:Haploidentical SCT could be performed safely and feasibly for patients with MM in need.
基金partly supported by grants from the National Key Research and Development Program of China(2016YFA0100900)the International S&T Cooperation Program of China(2015DFG32740)the National Natural Science Foundation of China(81571711 and 81425015)
文摘Alzheimer’s disease（AD）,the main cause of dementia,is defined by the combined presence of amyloid-b（Ab）deposition and abnormal tau aggregation[1].Experimental models are critical to obtain a better understanding of AD pathogenesis,and to evaluate the potential of novel therapeutic approaches.The most commonly used AD
文摘Rice tiller is a specialized grain-bearing branch that contrib- utes greatly to grain production. Therefore, rice tillering is an important agronomic trait and provides a model system for the study of branching in monocots. Owing its importance both to agriculture and to fundamental science, much attention has been given to understand the molecular mechanisms under- lying rice tillering.
文摘目的:探讨免疫球蛋白重链(IgH)基因重排在多发性骨髓瘤(MM)自体造血干细胞移植(auto-HSCT)后微小残留病监测中的价值。方法:收集2018年-2022年于武汉市第一医院血液内科接受auto-HSCT的26例MM患者的临床资料,通过多重PCR联合毛细管电泳片段分析法检测IgH重排来评价微小残留病(MRD),对疾病的转归进行相关统计学分析。结果:全部26例MM患者中,男性18例,女性8例,中位年龄59(41-70)岁,移植后中位随访时间33(7-52)个月。与骨髓IgH重排阴性组(17例)比较,移植前骨髓IgH重排阳性(9例)患者移植后3个月达到CR和sCR疗效的比例更低(1/9 vs 14/17),移植后缓解持续的时间(DOR)更短(10.78±4.35 vs 15.88±5.22个月),两组DOR差异有统计学意义(P<0.05);与外周血干细胞采集物IgH重排阴性组(21例)比较,外周血干细胞采集物IgH重排阳性(5例)患者移植后3个月达到CR和sCR的比例更低(0/5 vs 15/21),移植后缓解持续的时间(DOR)更短(9.60±4.83 vs 15.19±5.11个月),两组DOR差异有统计学意义(P<0.05)。在随访期内,移植前骨髓IgH重排阳性的患者有5例(5/9)死亡,IgH重排阴性患者均存活;外周血干细胞采集物IgH重排阳性患者有4例(4/5)死亡,IgH重排阴性患者有1例死亡(1/21)。无论是骨髓还是外周血干细胞采集物标本,IgH重排阳性患者移植后生存时间较IgH重排阴性患者更短(P<0.05)。Logistic回归分析结果显示,性别、疾病分期、初诊时骨髓涂片浆细胞比例、干细胞动员方案、移植前疗效评价(≥CR和<CR)、CD34+细胞计数对移植前骨髓及干细胞采集物IgH重排均无影响(P>0.05)。结论:通过检测接受auto-HSCT的MM患者IgH重排,可以进一步评价MRD的深度,对疾病的疗效及预后判断有一定的指导意义。
