非血缘关系造血干细胞移植61例分析

Objective To study the therapeutic effectiveness, associated complications and related factors of unrelated allogeneic hematopoietic stem cell transplantation (URD-HSCT). Methods Sixty-one patients with malignant hematological diseases received URD-HSCT. All cases were subjected to myeloablative or nonmyeloablative conditioning regimen according to primary diseases. Among 61 patients, 21 were donor-recipient 6/6 HLA-matched, 5 were 5/6 HLA antigen-matched, 24 were 1 HLA gene subtype-mismatched, 11 were 2 HLA gene subtype-mismatched. Eighteen patients were ABO-compatible with donors, while 43 ABO-incompatible with donors. The median of infused donor nucleated cells was 4.5×108/kg, and the median of CD34+ cells were 4.3×106/kg. The graft-versus-host disease (GVHD) prevention regimens were based on short-term MTX, cyclosporin A and mycophenolate mofetil (MMF) regimen. Forty-nine cases also received CD25 Mab on the day of transplantation, and the day 4 after transplantation. Nine cases were also administrated with antilymphocyte globulin (ALG) or antithymocyte globulin (ATG). Two cases received ALG and CD25 Mab. Results Among 61 patients, 59 cases were successfully engrafted, which was identified by blood type, chromosome test and DNA polymorphism. Twenty-three cases developed grade Ⅱ～Ⅳ acute GVHD. Twenty-five patients experienced chronic GVHD. Infection of bacterial and/or fungal within 100 days after URD-HSCT was documented in 48 cases. Thirty-six cases had cytomegalovirus infection. Major infection site was lower respiratory tract. Eighteen cases died after URD-HSCT, and the 2-year disease-free survival rate was (68.0±6.4)%. Among these 18 deaths, 12 cases died because of transplantation related complications with the transplantation related mortality (TRM) being 19.7 %, and the remaining 6 cases died of relapse with the relapse rate being 9. 8 %, respectively. Conclusions URD-HSCT is an effective therapeutic strategy for malignant hematopoietic diseases when related donor is not available Acute GVHD and infection are risk factors of therapeutic effect and prognosis after URD-HSCT. Early prediction and prevention of acute GVHD and infection are essential problems to overcome.     

非血缘关系造血干细胞移植61例分析

Objective To study the therapeutic effectiveness, associated complications and related factors of unrelated allogeneic hematopoietic stem cell transplantation (URD-HSCT). Methods Sixty-one patients with malignant hematological diseases received URD-HSCT. All cases were subjected to myeloablative or nonmyeloablative conditioning regimen according to primary diseases. Among 61 patients, 21 were donor-recipient 6/6 HLA-matched, 5 were 5/6 HLA antigen-matched, 24 were 1 HLA gene subtype-mismatched, 11 were 2 HLA gene subtype-mismatched. Eighteen patients were ABO-compatible with donors, while 43 ABO-incompatible with donors. The median of infused donor nucleated cells was 4.5×108/kg, and the median of CD34+ cells were 4.3×106/kg. The graft-versus-host disease (GVHD) prevention regimens were based on short-term MTX, cyclosporin A and mycophenolate mofetil (MMF) regimen. Forty-nine cases also received CD25 Mab on the day of transplantation, and the day 4 after transplantation. Nine cases were also administrated with antilymphocyte globulin (ALG) or antithymocyte globulin (ATG). Two cases received ALG and CD25 Mab. Results Among 61 patients, 59 cases were successfully engrafted, which was identified by blood type, chromosome test and DNA polymorphism. Twenty-three cases developed grade Ⅱ～Ⅳ acute GVHD. Twenty-five patients experienced chronic GVHD. Infection of bacterial and/or fungal within 100 days after URD-HSCT was documented in 48 cases. Thirty-six cases had cytomegalovirus infection. Major infection site was lower respiratory tract. Eighteen cases died after URD-HSCT, and the 2-year disease-free survival rate was (68.0±6.4)%. Among these 18 deaths, 12 cases died because of transplantation related complications with the transplantation related mortality (TRM) being 19.7 %, and the remaining 6 cases died of relapse with the relapse rate being 9. 8 %, respectively. Conclusions URD-HSCT is an effective therapeutic strategy for malignant hematopoietic diseases when related donor is not available Acute GVHD and infection are risk factors of therapeutic effect and prognosis after URD-HSCT. Early prediction and prevention of acute GVHD and infection are essential problems to overcome.     

人参皂苷Rb1逆转白消安干预人脐静脉内皮细胞NO生成作用及其信号转导机制

目的:研究人参皂苷Rb1对白消安(BU)干预人脐静脉内皮细胞(HUVEC)一氧化氮(NO)合成作用的影响,并进一步探讨此影响的信号转导机制.方法:体外培养HUVEC,以硝酸还原酶法检测各组细胞培养上清液中NO的含量,实时荧光定量OCR(Real Time-PCR)法检测HUVEC中内皮型一氧化氮合酶(eNOS)mRNA表达;以特异性抑制剂LY294002阻断P13K/AKT信号转导通路.Western blot印迹法检测细胞内磷酸化丝/苏氨酸蛋白激酶AKT(P-AKT)表达.结果:①BU明显降低HUVEC中的eNOSmRNA表达及细胞培养上清中的NO水平;预先用人参皂苷Rb1干预可以拮抗BU对HUVEC的这种影响.提高eNOSmRNA表达及NO合成;②BU明显抑制HUVEC表达p-AKT,Rb1则可增强p-AKT表达,拮抗白消安对P-AKT的抑制作用;③人参皂苷Rb1拮抗白消安抑制内皮细胞NO合成的作用能被LY294002拮抗;40 μMol·L-1的I.Y294002即可明显抑制磷酸化AKT的表达和N0的合成.结论:BU可抑制HUVEC合成NO,人参皂苷Rb1可逆转此作用.其机制与激活P13K/AKT信号转导通路密切相关.人参皂苷可能籍此机制保护血管内皮细胞免受化疗药物损伤.     

非血缘关系造血干细胞移植61例分析

Objective To study the therapeutic effectiveness, associated complications and related factors of unrelated allogeneic hematopoietic stem cell transplantation (URD-HSCT). Methods Sixty-one patients with malignant hematological diseases received URD-HSCT. All cases were subjected to myeloablative or nonmyeloablative conditioning regimen according to primary diseases. Among 61 patients, 21 were donor-recipient 6/6 HLA-matched, 5 were 5/6 HLA antigen-matched, 24 were 1 HLA gene subtype-mismatched, 11 were 2 HLA gene subtype-mismatched. Eighteen patients were ABO-compatible with donors, while 43 ABO-incompatible with donors. The median of infused donor nucleated cells was 4.5×108/kg, and the median of CD34+ cells were 4.3×106/kg. The graft-versus-host disease (GVHD) prevention regimens were based on short-term MTX, cyclosporin A and mycophenolate mofetil (MMF) regimen. Forty-nine cases also received CD25 Mab on the day of transplantation, and the day 4 after transplantation. Nine cases were also administrated with antilymphocyte globulin (ALG) or antithymocyte globulin (ATG). Two cases received ALG and CD25 Mab. Results Among 61 patients, 59 cases were successfully engrafted, which was identified by blood type, chromosome test and DNA polymorphism. Twenty-three cases developed grade Ⅱ～Ⅳ acute GVHD. Twenty-five patients experienced chronic GVHD. Infection of bacterial and/or fungal within 100 days after URD-HSCT was documented in 48 cases. Thirty-six cases had cytomegalovirus infection. Major infection site was lower respiratory tract. Eighteen cases died after URD-HSCT, and the 2-year disease-free survival rate was (68.0±6.4)%. Among these 18 deaths, 12 cases died because of transplantation related complications with the transplantation related mortality (TRM) being 19.7 %, and the remaining 6 cases died of relapse with the relapse rate being 9. 8 %, respectively. Conclusions URD-HSCT is an effective therapeutic strategy for malignant hematopoietic diseases when related donor is not available Acute GVHD and infection are risk factors of therapeutic effect and prognosis after URD-HSCT. Early prediction and prevention of acute GVHD and infection are essential problems to overcome.     

“提质增效”方略下来华医学留学生科研能力培养的探索与实践

培养医学留学生科研能力是提高国际医学人才培养质量的需求,也适应当今世界急需创新型高精尖人才的形势。通过长期以来的探索与实践,培养医学留学生科研能力对提高来华留学教育教学质量、培养高素质的国际医学人才具有推动作用。     

“互联网+”视域下高校来华留学教育的探索与实践

为了应对新冠肺炎疫情对教育教学的影响,在线教育在世界各地兴起。通过“互联网+”视角对后疫情时代的来华留学生教育的机遇、挑战和更高要求进行探索。     

后疫情时代来华医学留学生全英语授课师资培训的思考与探讨

新冠疫情给来华留学教育来带来巨大挑战,也凸显了目前我国临床医学专业(英语授课)师资培训的短板。新形势下,针对如何突破全英师培的困境,保持全英师培的延续性发展进行了探讨。     

非血缘关系造血干细胞移植61例分析

Objective To study the therapeutic effectiveness, associated complications and related factors of unrelated allogeneic hematopoietic stem cell transplantation (URD-HSCT). Methods Sixty-one patients with malignant hematological diseases received URD-HSCT. All cases were subjected to myeloablative or nonmyeloablative conditioning regimen according to primary diseases. Among 61 patients, 21 were donor-recipient 6/6 HLA-matched, 5 were 5/6 HLA antigen-matched, 24 were 1 HLA gene subtype-mismatched, 11 were 2 HLA gene subtype-mismatched. Eighteen patients were ABO-compatible with donors, while 43 ABO-incompatible with donors. The median of infused donor nucleated cells was 4.5×108/kg, and the median of CD34+ cells were 4.3×106/kg. The graft-versus-host disease (GVHD) prevention regimens were based on short-term MTX, cyclosporin A and mycophenolate mofetil (MMF) regimen. Forty-nine cases also received CD25 Mab on the day of transplantation, and the day 4 after transplantation. Nine cases were also administrated with antilymphocyte globulin (ALG) or antithymocyte globulin (ATG). Two cases received ALG and CD25 Mab. Results Among 61 patients, 59 cases were successfully engrafted, which was identified by blood type, chromosome test and DNA polymorphism. Twenty-three cases developed grade Ⅱ～Ⅳ acute GVHD. Twenty-five patients experienced chronic GVHD. Infection of bacterial and/or fungal within 100 days after URD-HSCT was documented in 48 cases. Thirty-six cases had cytomegalovirus infection. Major infection site was lower respiratory tract. Eighteen cases died after URD-HSCT, and the 2-year disease-free survival rate was (68.0±6.4)%. Among these 18 deaths, 12 cases died because of transplantation related complications with the transplantation related mortality (TRM) being 19.7 %, and the remaining 6 cases died of relapse with the relapse rate being 9. 8 %, respectively. Conclusions URD-HSCT is an effective therapeutic strategy for malignant hematopoietic diseases when related donor is not available Acute GVHD and infection are risk factors of therapeutic effect and prognosis after URD-HSCT. Early prediction and prevention of acute GVHD and infection are essential problems to overcome.     

异基因造血干细胞移植后FOXP3动态监测的临床意义

目的 探讨FOXP3mRNA水平的动态变化在异基因造血干细胞移植(allo-HSCT)中的临床意义.方法 allo-HSCT患者27例,12例采用短程甲氨蝶呤联合环孢素A(MTX CsA)预防移植物抗宿主病(GVHD),15例加用抗CD25强化GVHD预防;发生急性移植物抗宿主病(aGVHD)者11例.采用实时荧光定量PCR反应动态监测allo-HScT患者移植预处理前、移植当天、移植后1、2、4周及aGVHD发生时外周血FOXP3mRNA水平,分析FOXP3mRNA水平的变化与aGVHD发生的相互关系.结果 抗CD25对FOXIr3mRNA水平无影响;Ⅰ～Ⅱ度和Ⅲ～Ⅳ度aGVHD组发生aGVHD时FOXP3mRNA水平均较发生前降低,差异具有统计学意义(P<0.05).结论 FOXP3是CD4 CD25 Treg细胞的特异性标志,对CD4 CD25 Treg细胞的发育和功能发挥起重要作用,对aGVHD的发生具有保护作用,可作为临床监测aGVHD发生的重要指标之一.