弥漫大B细胞淋巴瘤免疫表型及临床参数与其预后的关系

目的探讨采用R-CHOP方案治疗的弥漫大B细胞淋巴瘤(DLBCL)的免疫表型及临床参数与其预后的关系。方法采用免疫组化SP法,检测57例DLBCL中CD10、bcl-6、MUMl和CD5的表达,根据Hans分型将其分为GCB型和non-GCB型。结果 57例DLBCL中表达CD10、bcl-6、MUM1和CD5分别有9例(15.8%)、36例(63.2%)、34例(59.6%)、4例(7.0%);GCB型17例(29.8%)、non-GCB型40例(70.2%)。57例DLBCL中死亡19例,GCB型预后与non-GCB型相比差异无统计学意义(P=0.132);CD5阳性患者死亡率高,但与CD5阴性者相比差异无统计学意义(P=0.594)。Ⅲ~Ⅳ期和年龄>60岁DLBCL患者死亡率高(P=0.001、P=0.017)。结论应用R-CHOP方案治疗的DLBCL其预后与患者年龄和肿瘤临床分期有关,与Hans分型无关。     

Cdc7 Mcm2在弥漫大B细胞淋巴瘤的表达与预后的相关性研究

探讨弥漫大B细胞淋巴瘤（DLBCL）患者中Cdc7、Mcm2的表达及与预后的关系。方法:收集2008年1月至2010年1月收治的60例DLBCL初治患者的性别、年龄、ECOG评分、Ann Arbor分期、IPI评分、骨髓累及、B症状有无、结外受累数目、血乳酸脱氢酶（LDH）数值、治疗模式、组织细胞来源等临床资料,应用免疫组化法测定组织蜡块中Cdc7、Mcm2蛋白的表达,分析其与预后的关系。结果:经单因素分析,Cdc7阳性和阴性表达者2年生存率分别为41%、73%（P<0.05）;Mcm2阳性和阴性表达者分别为25%、75%（P<0.05）;临床资料:ECOG评分（０～１分 vs ２分）（76.7% vs 23.3%）;Ann Arbor分期（Ⅰ～Ⅱ期 vs Ⅲ～Ⅳ期）（65.0% vs 35.0%）;IPI（0～1分 vs ≥2分）（78.3% vs 21.7%）;LDH（正常 vs 高于正常）（70.0% vs 30.0%）;单纯化疗 vs 化疗+放疗（41.7% vs 58.3%）;GCB vs ABC来源（53.3% vs 46.7%）。其2年生存率差异具有统计学意义（P<0.05）。Cdc7和Mcm2的表达与DLBCL的临床分期和IPI评分具有相关性（P<0.05）,Ⅲ/Ⅳ期DLBCL患者Cdc7和Mcm2的表达高于Ⅰ/Ⅱ期患者,IPI评分越高,Cdc7和Mcm2的表达也越强。结论:除IPI评分、治疗模式、组织细胞来源是DLBCL的预后因素外,Cdc7和Mcm2高表达是影响DLBCL患者预后的不良因素。      

初诊CD5阳性弥漫大B细胞淋巴瘤患者临床特征及预后分析

目的探讨初诊CD5阳性弥漫大B细胞淋巴瘤(DLBCL)患者的临床特征及预后。方法回顾性分析2015年1月至2018年12月同济大学附属第十人民医院和上海交通大学医学院附属第九人民医院收治的19例初诊CD5阳性DLBCL患者的临床资料, 分析患者临床特征及实验室指标等, 并采用Kaplan-Meier法进行生存分析, 采用Cox比例风险模型对预后影响因素进行多因素分析。结果 19例初诊CD5阳性DLBCL患者中位年龄63岁(34～76岁), 其中Ann Arbor分期Ⅲ～Ⅳ期13例, 乳酸脱氢酶高于正常值上限12例, 国际预后指数评分≥4分9例, 存在B症状13例, Ki-67阳性指数≥80% 10例, 存在≥1处淋巴结外器官受累15例, 存在大包块(肿块长径≥7 cm)8例。患者2年无进展生存率为47.4%, 2年总生存率为63.2%。单因素分析显示, Ann Arbor分期、大包块、淋巴结外受累及≥4个周期鞘内注射与总生存均相关(均P<0.05);多因素分析显示, Ann Arbor分期(Ⅰ～Ⅱ期比Ⅲ～Ⅳ期:HR=0.158, 95%CI 0.031～0.803, P=0.02...     

弥漫大B细胞淋巴瘤外周血CD13+CD4+CD25hi调节性T细胞的表达及其临床意义

目的 探讨CD13+CD4+CD25hi调节性T细胞(Treg细胞)在弥漫大B细胞淋巴瘤(DLBCL)患者外周血中的表达水平及其临床意义.方法 采用流式细胞术检测58例初诊DLBCL患者及30名健康对照者外周血CD13+CD4+CD25hi Treg细胞亚群在Treg细胞中的表达水平,并分析其与各临床指标的关系.结果 初诊DLBCL患者外周血CD13+CD4+CD25hi Treg细胞的表达高于健康对照者,两者差异有统计学意义[(36.37±11.89)%比(9.03±2.10)%,t=7.168,P<0.001].国际预后指数(IPI)评分3~5分的初诊DLBCL患者外周血CD13+CD4+CD25hi Treg细胞表达水平高于0~2分的患者,两者差异有统计学意义[(44.28±10.10)%比(21.51±6.23)%,t=ˉ9.347,P=0.03].Ⅱ、Ⅲ、Ⅳ期DLBCL患者外周血CD13+CD4+CD25hi Treg细胞表达水平分别为(19.48±1.34)%、(33.98±8.03)%、(47.89±8.25)%,三者差异有统计学意义(F=38.363,P<0.001).而不同年龄、性别、乳酸脱氢酶(LDH)水平患者之间外周血CD13+CD4+CD25hi Treg细胞表达水平差异均无统计学意义(均P>0.05).结论 CD13+CD4+CD25hi Treg细胞亚群在DLBCL患者外周血中的表达水平明显升高,并与患者临床分期及预后相关.     

弥漫大B细胞淋巴瘤zeste基因增强子同源物2表达及其与临床病理特征和预后的关系

目的探讨弥漫大B细胞淋巴瘤(DLBCL)患者zeste基因增强子同源物2(EZH2)表达及其与临床病理特征和预后的关系。方法回顾性分析2009年1月至2018年12月山西省肿瘤医院有随访资料的106例DLBCL患者临床病理资料, 其中非生发中心B细胞型(non-GCB型)76例(72%), 生发中心B细胞型(GCB型)30例(28%), 以11例淋巴结反应性增生患者作为正常对照, 采用EnVision法检测EZH2、c-myc蛋白表达情况, 分析二者的相关性及EZH2蛋白与患者临床病理特征、总生存(OS)、无进展生存(PFS)的关系。结果 DLBCL患者中EZH2、c-myc蛋白阳性表达率分别为78.3%(83/106)与48.1%(51/106), 正常对照两者均不表达。non-GCB型中EZH2蛋白阳性表达率高于GCB型(P<0.01)。EZH2蛋白表达与临床分期、血清乳酸脱氢酶(LDH)水平、国际预后指数(IPI)评分均有关(均P<0.01)。GCB型中EZH2与c-myc蛋白表达呈正相关(r=0.74, P<0.001)。DLBCL中EZH2阴性组OS及PFS...     

弥漫大B细胞淋巴瘤患者淋巴细胞亚群特点及利妥昔单抗对其影响的临床研究

目的 探讨不同分期的弥漫大B细胞淋巴瘤(DLBCL)患者外周血淋巴细胞亚群特点,以及应用利妥昔单抗治疗后淋巴细胞亚群的变化.方法 应用流式细胞术检测初治DLBCL患者应用利妥昔单抗(R)加CHOP方案(35例),CHOP方案(60例)化疗前后以及健康人(33名)外周血的淋巴细胞表型.结果 DLBCL患者总T细胞、CD+4细胞计数,CD4/CD8比值均低于健康对照组,CD+8细胞计数则明显高于健康对照组,Ⅲ～Ⅳ期患者尤为突出(P＜0.01);Ⅰ～Ⅳ期患者NK细胞计数均显著高于健康对照组(P＜0.01),但Ⅲ～Ⅳ期较Ⅰ～Ⅱ期患者有所降低(P＜0.05);Ⅰ～Ⅳ期DLBCL患者外周血B细胞计数与健康对照组差异无统计学意义(P＞0.05).RCHOP组患者与CHOP组患者化疗后总T细胞、CD+4细胞、CD+8细胞、NK细胞计数,CD4/CD8比值差异无统计学意义(P＞0.05),但化疗后前者B细胞计数显著低于后者(P＜0.01).结论 DLBCL患者存在细胞免疫调节异常,并与临床分期、病情进展密切相关.淋巴细胞亚群检测为DLBCL诊断、病情评价提供了简易可行的免疫学指标.利妥昔单抗对患者T细胞及NK细胞无明显影响,可引起B细胞显著降低,但机会性感染发生率并未增加.     

CMYC和PD-L1表达与DLBCL临床病理特征及预后的关系分析

目的 探讨CMYC和PD-L1表达与弥漫大B细胞淋巴瘤(DLBCL)临床病理特征及预后的关系。方法 选取DLBCL患者92例,免疫组化法检测CMYC及PD-L1蛋白的表达,分析其与DLBCL临床病理特征的关系。结果 92例DLBCL组织中72例CMYC蛋白为阳性,阳性率为78.3%, 76例PD-L1蛋白为阳性,阳性率为82.6%;Ann Arbor分期Ⅲ～Ⅳ期、有骨髓侵犯的DLBCL患者CMYC及PD-L1的表达阳性率显著高于Ann Arbor分期Ⅰ～Ⅱ期及无骨髓侵犯者(P均<0.05);预后不良组中CMYC及PD-L1的表达阳性率显著高于预后良好组,且Ann Arbor分期为Ⅲ～Ⅳ的患者占比显著高于预后良好组(P<0.05);Logistic回归分析发现,CMYC阳性、PD-L1阳性及Ann Arbor分期均是DLBCL预后不良的独立危险因素(P<0.05)。结论 CMYC及PD-L1蛋白在DLBCL患者中特异性高表达,且是DLBCL患者预后判断的潜在指标,值得临床推广应用。     

非小细胞肺癌中CD151及uroplakin 1A表达及临床意义的研究

目的探讨CD151和uroplakin 1A在非小细胞肺癌(NSCLC)中的表达情况及临床意义。方法选取156例NSCLC患者(NSCLC组)和66例肺良性病变患者(肺良性病变组)。采用免疫组织化学法检测并比较CD151和uroplakin 1A在NSCLC组织和肺部良性病变组织中的表达情况,并分析其与NSCLC患者临床特征、5年生存率的关系。结果NSCLC组织中的CD151和uroplakin 1A阳性表达率均明显高于肺部良性病变组织(P﹤0.01);有吸烟史、TNM分期为Ⅲ~Ⅳ期、有淋巴结转移的NSCLC患者的CD151的阳性表达率均明显高于无吸烟史、TNM分期为Ⅰ~Ⅱ期、无淋巴结转移的NSCLC患者(P﹤0.01);有吸烟史、肿瘤直径﹥2 cm、TNM分期为Ⅲ~Ⅳ期、有淋巴结转移的NSCLC患者的uroplakin 1A的阳性表达率均明显高于无吸烟史、肿瘤直径≤2 cm、TNM分期为Ⅰ~Ⅱ期、无淋巴结转移的患者(P﹤0.01);不同组织分化程度、病理学分型的NSCLC患者的CD151和uroplakin 1A的阳性表达率比较,差异均有统计学意义(P﹤0.01)。CD151及uroplakin 1A同时阳性表达的NSCLC患者80例,同时阴性表达的患者26例,CD151阴性、uroplakin 1A阳性或者CD151阳性、uroplakin 1A阴性的患者50例;CD151阳性表达和uroplakin 1A阳性表达呈正相关(r=0.297,P﹤0.01);CD151和uroplakin 1A同时阳性表达和同时阴性表达的NSCLC患者的5年生存率分别为0和19.2%,CD151阴性、uroplakin 1A阳性或者CD151阳性、uroplakin 1A阴性的NSCLC患者的5年生存率为12.0%;CD151和uroplakin 1A同时阳性表达的NSCLC患者的5年生存率低于上述另两种情况(P﹤0.05)。结论与肺部良性病变比较,NSCLC患者的CD151和uroplakin 1A的阳性表达率更高,且其表达情况与NSCLC患者的临床特征及5年生存率有关,有利于指导多学科综合治疗,可能成为评估NSCLC患者预后的指标。     

弥漫大B细胞淋巴瘤患者淋巴细胞亚群特点及利妥昔单抗对其影响的临床研究

 目的　探讨不同分期的弥漫大B细胞淋巴瘤（DLBCL）患者外周血淋巴细胞亚群特点,以及应用利妥昔单抗治疗后淋巴细胞亚群的变化。方法　应用流式细胞术检测初治DLBCL患者应用利妥昔单抗（R）加CHOP方案（35例）,CHOP方案（60例）化疗前后以及健康人（33名）外周血的淋巴细胞表型。结果　DLBCL患者总T细胞、CD+4细胞计数,CD4／CD8比值均低于健康对照组,CD+8细胞计数则明显高于健康对照组,Ⅲ～Ⅳ期患者尤为突出（P＜0.01）;Ⅰ～Ⅳ期患者NK细胞计数均显著高于健康对照组（P＜0.01）,但Ⅲ～Ⅳ期较Ⅰ～Ⅱ期患者有所降低（P＜0.05）;Ⅰ～Ⅳ期DLBCL患者外周血B细胞计数与健康对照组差异无统计学意义（P＞0.05）。RCHOP组患者与CHOP组患者化疗后总T细胞、CD+4细胞、 CD+8细胞、NK细胞计数,CD4／CD8比值差异无统计学意义（P＞0. 05）,但化疗后前者B 细胞计数显著低于后者 （P＜0.01）。结论　DLBCL患者存在细胞免疫调节异常, 并与临床分期、病情进展密切相关。淋巴细胞亚群检测为DLBCL诊断、病情评价提供了简易可行的免疫学指标。利妥昔单抗对患者T细胞及NK细胞无明显影响,可引起B细胞显著降低,但机会性感染发生率并未增加。     

免疫分型标记物和CD43在非特指弥漫性大B细胞淋巴瘤中的表达及临床意义

目的 探讨免疫分型标记物和CD43在非特指弥漫性大B细胞淋巴瘤(DLBCL NOS)中的表达及其临床意义.方法 收集120例DLBCL NOS临床病理资料进行分析.采用免疫组化法检测CD10、bcl-6、MUM-1和CD43的表达,根据Hans分型将其分为GCB型和non-GCB型.结果 120例DLBCL,NOS中GCB型和non-GCB型分别为38例和82例,Hans分型与DLBCL NOS预后无关(P＞0.05).120例DLBCL NOS中CD43阳性33例(27.5％),CD43表达与性别、临床分期和免疫分型均无关(P＞0.05),与年龄(P=0.036)和生存状态(P=0.004)有关.结论 DLBCL NOS预后差与CD43阳性表达有关,与Hans分型无关.     

Prognostic Values of Various Clinical Factors and GeneticSubtypes for Diffuse Large B-cell lymphoma Patients: ARetrospective Analysis of 227 Cases

Aim: To analyze the significance of different clinical factors for prognostic prediction in diffuse large B-celllymphoma (DLBCL) patients. Methods: Two hundred and twenty-seven DLBCL patients were retrospectivelyreviewed. Patients were managed with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP)regimen or rituximab plus the CHOP (RCHOP) regimen. Results: Lactate dehydrogenase (LDH), β2-microglobulin (β2-M), B symptoms, Ann Arbor stage and genetic subtypes were statistically relevant in predictingthe prognosis of the overall survival (OS). In the CHOP group, the OS in patients with germinal center B-celllike(GCB)(76.2%) was significantly higher than that of the non-GCB group (51.9%, P=0.032). With RCHOPmanagement, there was no statistical difference in OS between the GCB (88.4%) and non-GCB groups (81.9%,P=0.288). Conclusion: Elevated LDH and β2-M levels, positive B symptoms, Ann Arbor stage III/IV, and primarynodal lymphoma indicate an unfavorable prognosis of DLBCL patients. Patients with GCB-like DLBCL have abetter prognosis than those with non-GCB when treated with the CHOP regimen. The RCHOP treatment withthe addition of rituximab can improve the prognosis of patients with DLBCL.     

老年人EB病毒阳性弥漫大B细胞淋巴瘤临床病理学特点及预后分析

目的 探讨老年人EB病毒阳性（EBV＋）弥漫大B细胞淋巴瘤（DLBCL）的临床病理学特点及预后.方法 采用回顾性研究的方法 ,收集24例老年EBV＋DLBCL患者,以同期EBV-非特指型DLBCL患者为对照,分析老年EBV＋ DLBCL患者的临床病理学特点及预后.结果 24例老年EBV＋DLBCL患者肿瘤细胞形态上主要表现为单一性或多形性肿瘤细胞增生;多形性病例中常可见有地图状坏死.细胞起源免疫分型主要为非生发中心亚型,分别占91.3％（Hans分型）和100.0％（Choi分型）.CD30阳性率为55.0％,高于非特指型EBV-DLBCL（P＜ 0.001）.在总体生存时间方面,R-CHOP方案治疗的老年EBV＋DLBCL患者和＞50岁EBV-DLBCL患者的中位生存时间分别为44.2个月和29.2个月,两者差异无统计学意义（P=0.587）.结论 老年人EBV＋DLBCL肿瘤细胞形态上主要表现为单一性或多形性肿瘤性增生;多形性病例中常可见不规则坏死.CD30阳性率较高,并且主要为非生发中心B细胞亚型.R-CHOP方案治疗的老年EBV＋ DLBCL患者的总体生存时间与同年龄段非特指型EBV-DLBCL患者相近.     

CD5 expression correlates with inferior survival and enhances the negative effect of p53 overexpression in diffuse large B‐cell lymphoma

De novo CD5‐positive diffuse large B‐cell lymphoma (CD5+ DLBCL) is increasingly recognized as a distinct pathologic phenomenon with a specific clinical picture. However, CD5+ DLBCL has not been studied on a large scale in China. In this study, we show that CD5+ DLBCL occurs at a low frequency (9.2%). Comparison of clinical characteristics of CD5+ vs CD5? DLBCL showed that CD5+ DLBCL was more frequently elderly (>60 years) and had B symptoms, high‐performance status, stage III‐IV, an IPI score >2 and bone marrow involvement. Patients with CD5+ DLBCL had tumours with a higher prevalence of BCL‐2 and p53 overexpression than CD5? DLBCL. Patients with CD5+ DLBCL had inferior progression‐free survival (PFS) and overall survival (OS) than did patients with CD5? DLBCL. For CD5+ DLBCL, the patients who were treated with rituximab showed significantly better PFS and OS than those treated without rituximab. However, patients treated with RCHOP showed similar PFS and OS when compared with the group treated with intensive therapy. In addition, patients with p53 and CD5 co‐expression had the worst PFS and OS. In conclusion, CD5+ DLBCL was associated with unfavorable clinicopathologic variables and with inferior survival. CD5+ DLBCL has a high frequency of p53 overexpression, and CD5 augments the negative effect of p53 overexpression in DLBCL.     

CD138在弥漫大B细胞淋巴瘤免疫分型构建及预后评估中的意义

目的 探讨CD138的表达及不同免疫分型方法与弥漫大B细胞淋巴瘤(DLBCL)患者预后的关系.方法 收集106例DLBCL组织标本,应用免疫组化EnVision法检测CD138、CD10、MUM1及bcl-6的表达.基于免疫标记结果,根据4种不同免疫分型方法对106例患者进行分型,比较各亚型患者的预后,分析不同免疫分型方法对DLBCL患者预后的影响.结果 106例组织标本中,CD20均为弥漫阳性,CD3均为阴性,CD10的阳性率为21.7%,bcl-6的阳性率为26.4%,MUM1的阳性率为56.6%,CD138的阳性率为15.1%.其中CD10和bcl-6阳性者总生存期长于阴性者(P=0.001,P=0.041),而CD138阳性者总生存期短于阴性者(P=0.003).多因素Cox回归分析显示,ECOG评分、Hans分型、Colomo分型分别为DLBCL患者生存期(OS)和无进展生存期(PFS)的独立影响因素,两种免疫分型方法相对于OS的OR值(0.259和0.255)和PFS的OR值(0.248和0.244)接近.结论 Hans分型和Colomo分型均与DLBCL患者的预后有关,且对预后的影响力相近,CD138的表达对DLBCL患者预后的预测意义不大.

Abstract：

Objective The purpose of this study was to classify the diffuse large B-cell lymphoma (DLBCL) into different prognostic subgroups according to four different detection methods of the expression of CD138,CD10,bcl-6,and MUM1.In particular to investigate the significance of CD138 in immunohistochemical profiles and its correlation with prognosis in DLBCL. Methods Immunohistochemical EnVision method was used to detect the expression of CD138,CD10,bcl-6 and MUM1 in 106 cases of DLBCL and reconstructed into four different subtyping algorithms.Algorithm-1,according to the expression of CD10,bcl-6 and MUM1,the cases were assigned to GCB and non-GCB groups.Algorithm-2,according to the expression of CD138,CD10,bcl-6 and MUM1,the cases were assigned to A,B,C,D groups.Algorithm-3,according to the expression of CD10 and MUM1,the cases were assigned to GCB and non-GCB groups.Algorithm-4,according to the expression of CD138,CD10,bcl-6 and MUM1,the cases were assigned to GCB and non-GCB groups.Following up was included as well.Statistical analysis was performed using the SPSS 13.0 and differences were considered significant at P ＜0.05. Results CD138,MUM1,CD10 and bcl-6 were positive in 15.1%(16/106),56.6%(60/106),21.7(23/106) and 26.4%(28/106),respectively.The expression of CD10 and bcl-6 was associated with favorable OS(P =0.001 and 0.041,respectively),whereas the expression of CD138 was associated with unfavorable OS(P =0.003).Using multivariate Cox proportional hazards regression analysis,algorithm-1 and-4 were almost at the same level for prognosis of OS(OR = 0.259,0.255) and PFS(OR = 0.248,0.244). Conclusions Both Hans's algorithm and Colombo's algorithm including CD138 detection are associated with the prognosis of DLBCL patients.The two algorithms have similar OR value according to Cox analysis.However,positive expression of CD138 is of minor significance in prediction of the prognosis in DLBCL patients.     

Clinicopathologic characteristics and treatment outcome of the addition of rituximab to chemotherapy for CD5-positive in comparison with CD5-negative diffuse large B-cell lymphoma

Background: CD5-positive (CD5+) diffuse large B-cell lymphoma (DLBCL) comprises ∼10% of DLBCLs, and it is associated with poor prognosis. The clinicopathologic characteristics and prognosis of CD5-negative (CD5-) DLBCL and CD5+ DLBCL were compared.Patients and methods: The subjects were 607 DLBCL patients in whom cell surface markers could be analyzed, among 930 consecutive patients registered in the Adult Lymphoma Treatment Study Group between 1998 and 2008.Results: In all, 102 patients (16.8%) had CD5+ DLBCL. Compared with CD5- DLBCL, CD5+ DLBCL was more closely associated with elevated serum lactate dehydrogenase level, advanced stage, poor performance status, extranodal sites, CD10-, BCL-2+, MUM1+, and nongerminal center B-cell type. The 5-year overall survival (OS) rates of CD5+ DLBCL (n = 102) and CD5- DLBCL (n = 505) were 55% and 65%, respectively (P = 0.032), with 5-year progression-free survival (PFS) rates of 52% and 61%, respectively (P = 0.041). In the CD5+ DLBCL patients, the addition of rituximab to chemotherapy significantly improved PFS (4-year PFS, 47.4% versus 62.5%), but not OS (4-year OS, 57.8% versus 63.5%).Conclusions: For CD5+ DLBCL, the addition of rituximab to chemotherapy significantly improved the PFS, but not OS. Therefore, it is thought that a new treatment strategy is necessary for CD5+ DLBCL.     

R-CHOP和CHOP方案治疗两种亚型弥漫大B细胞淋巴瘤患者的近期疗效

背景与目的：根据肿瘤细胞起源不同,可将弥漫大B细胞淋巴瘤（diffuselarge Bcelllymphoma,DLBCL）分为生发中心来源（germinalcenter Bcell like,GCB）及非生发中心来源（non-GCB）两种亚型。在以CHOP方案为标准的化疗基础上,前者预后优于后者。本研究通过比较R-CHOP（Rituximab联合CHOP）和CHOP方案治疗不同亚型DLBCL患者的近期疗效,寻找初诊DLBCL患者最佳一线治疗方案。方法：将2006年11月至2008年2月中山大学肿瘤防治中心内科收治的83例初治DLBCL患者分为GCB和non-GCB两组。按照修订版淋巴瘤疗效评价标准,比较接受R-CHOP或CHOP方案治疗患者的近期疗效;观察Bcl-2在两种亚型中的表达情况,并分析其与近期疗效的关系。结果：83例DLBCL患者中GCB组35例（42．2％）,non-GCB组48例（57．8％）。GCB组一线化疗近期总缓解率74．3％,non-GCB组60．4％,两组相比差异有显著性（P=0．006）。Bcl-2在GCB和non-GCB两亚组的表达差异没有显著性：Bcl-2阳性患者采用R．CHOP方案治疗的近期缓解率（75．6％）明显高于用CHOP方案治疗者（47．8％）,两组相比差异有显著性（P=0．031）：采用不同方案化疗的Bcl-2阴性患者的近期缓解率则差异无显著性（P〉0．05）。结论：GCB组患者接受标准R—CHOP或CHOP方案治疗近期缓解率高于non-GCB组,提示预后良好。加用Rituximab可提高Bcl-2阳性患者的近期缓解率。     

MYC在弥漫大B细胞淋巴瘤的表达及其临床意义

目的 探讨MYC在弥漫大B细胞淋巴瘤（diffuse large B-cell lymphoma,DLBCL）中的表达及其与预后的关系。方法 回顾性分析广西医科大学附属肿瘤医院2011年2月至2018年8月收治的220例弥漫大B细胞淋巴瘤患者的临床资料。采用免疫组织化学法检测MYC蛋白在DLBCL组织中的表达,并分析其与患者临床病理特征及预后的关系。检索GEO（gene expression omnibus）数据库中有生存资料和基因表达数据的DLBCL数据集,分析MYC基因表达与预后的关系。结果 220例DLBCL组织中MYC蛋白阳性表达率为18.64%,MYC蛋白表达阳性患者总生存期（overall survival,OS）及无进展生存期（progress-free survival,PFS）较阴性表达患者明显缩短（P＜0.001）。亚组分析显示,在GCB免疫亚型中,MYC蛋白表达阳性患者较阴性患者OS明显缩短（P＜0.001）;在non-GCB免疫亚型中,MYC蛋白表达阳性患者较阴性患者的OS及PFS明显缩短（P＜0.001）。Cox比例风险回归模型分析结果显示,MYC蛋白阳性表达是影响DLBCL患者预后的独立危险因素（P<0.01）。GEO数据库中数据集GSE10846分析结果显示MYC基因高表达患者OS明显著缩短（P＜0.01）。结论 MYC蛋白阳性表达的DLBCL患者预后较差。     

叉头框转录蛋白1在弥漫性大B细胞淋巴瘤中的表达及预后意义

目的 探讨叉头框转录蛋白1（FOXP1）在弥漫性大B细胞淋巴瘤（DLBCL）中的表达及其与DLBCL临床病理特征和预后的关系。方法 用免疫组织化学En Vision法检测85例DLBCL组织中FOXP1蛋白的表达情况,并分析FOXP1与临床病理特征及预后的关系。结果 85例DLBCL组织中FOXP1的阳性表达率为71.8％（61／85）,FOXP1表达与年龄、PS评分、乳酸脱氢酶（LDH）水平、国际预后指数评分、病理类型密切相关（P＜0.05）。在生发中心型（GCB）DLBCL中FOXP1阳性和阴性表达者的无病生存期（PFS）为13个月和44个月（P=0.002）,总生存期（OS）为28个月和50个月（P=0.003）;而在非生发中心型（non-GCB）中FOXP1表达与生存预后无关（P＞0.05）。单因素分析显示分期、LDH水平、有无B症状以及FOXP1表达与DLBCL患者的PFS和OS均相关（P＜0.05）,Cox多因素回归分析显示分期（95%CI：1.410~4.415,P=0.02）和FOXP1表达（95%CI：0.143～0.734,P=0.007）是PFS的独立预测因素。 结论 FOXP1蛋白有可能是DLBCL的一个重要的预后指标,尤其在GCB型DLBCL中FOXP1蛋白阳性表达提示预后不佳。     

R-CHOP regimen can significantly decrease the risk of disease relapse and progression in patients with non-germinal center B-cell subtype diffuse large B-cell lymphoma

To further explore the role of rituximab when added to the CHOP-like regimen in the treatment of immunohistochemically defined non-germinal center B-cell subtype (non-GCB) diffuse large B-celllymphoma (DLBCL), 159 newly diagnosed DLBCL patients were studied retrospectively based on the immunohistochemical evaluation of CD10, Bcl-6, MUM-1, and Bcl-2. Altogether, 110 patients underwent the CHOP-like regimen, and rituximab was added for the other 49 patients. Cox regression analysis showed that compared with the CHOP-like regimen, the rituximab-based regimen (R-CHOP regimen)significantly decreased the risk of disease relapse and progression in CD10-negative patients (P=0.001),Bcl-6-negative patients (P=0.01), and MUM-1-positive patients (P=0.003). The risk of disease relapse in patients with non-GCB subtype (P=0.002) also decreased. In contrast, patients with the opposite immunohistochemical marker expression profile and GCB subtype did not benefit from treatment with the R-CHOP regimen. In addition, non-GCB subtype patients had a significantly higher expression rate of Bcl-2 than GCB subtype patients (P=0.042). Although univariate analysis found that both Bcl-2-positive and-negative patients had significantly higher event-free survival rates with the R-CHOP regimen, only Bcl-2 positivity (P=0.004) maintained significance in the Cox regression analysis. We conclude that the addition of rituximab can significantly improve the prognosis of patients with non-GCB subtype DLBCL, which is closely related to the expression of CD10, Bcl-6, MUM-1, and Bcl-2.     

Statin-independent prognosis of patients with diffuse large B-cell lymphoma receiving rituximab plus CHOP therapy

BackgroundA recent laboratory study indicated that statins impaired the antitumor effects of rituximab by inducing conformational changes in CD20. Although these findings raised significant concerns about statin use during rituximab treatment, their clinical significance is unclear.Patients and methodsWe conducted a retrospective study investigating the effects of statins on the prognosis of diffuse large B-cell lymphoma (DLBCL) treated with rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (RCHOP). Newly diagnosed DLBCL patients were analyzed (n = 256), including 35 patients taking statins.ResultsThe 3-year progression-free survival rates were 84% and 73% (P = 0.38), while the overall survival rates were 89% and 78% (P = 0.28) for those patients treated with and without statins, respectively. After adjusting for the International Prognostic Index and serum cholesterol level, statin use was not associated with prognosis.ConclusionsThese results indicate that statins do not influence the clinical prognosis of DLBCL treated with RCHOP. Further studies with larger numbers of patients are warranted to confirm the prognostic significance of statins for patients with DLBCL receiving rituximab-containing chemotherapy.