胃癌患者外周血CD4+ CD25highCD127low/-调节性T细胞表达临床意义分析

目的:研究CD4+CD25highCD127low/-调节性T细胞(Treg)在胃癌患者外周血中的表达水平,探讨其在肿瘤发病机制及治疗中的作用。方法:采用流式细胞术检测法检测90例胃癌患者(35例为早中期胃癌,55例为晚期胃癌)和30名健康体检者外周血中CD4+CD25highCD127low/-Treg的表达水平。结果:90例胃癌患者外周血CD4+T细胞中CD4+CD25highCD127low/-Treg含量为(11.60±5.99)%,高于健康体检者(5.19±1.72)%,t=5.610,P=0.007;Ⅲ+Ⅳ期患者外周血CD4+T细胞中CD4+CD25high CD127low/-Treg含量为(12.55±6.59)%,明显高于Ⅰ+Ⅱ期患者(10.39±4.68)%(t=4.113,P=0.04)和健康体检者(5.19±1.72)%(t=5.923,P=0.001)。手术后胃癌患者CD4+CD25highCD127low/-Treg水平为(6.12±2.13)%,明显低于手术前(11.25±5.63)%,t=5.237,P=0.04。结论:胃癌患者外周血CD4+CD25highCD127low/-Treg数量增多且与病程分期相关,手术后Treg数量明显减少,Treg可能参与了胃癌的发生发展。     

结直肠癌患者外周血CD4+ CD25high调节性T细胞的作用

目的探讨结直肠癌患者外周血CD4+CD25high调节性T细胞(Treg)的作用。方法采用流式细胞仪测定36例结直肠癌患者及30例健康对照者外周血中CD4+CD25highFoxP3 Treg、CD4+CD25highTreg、CD4+CTLA-4 Treg及CD4+T细胞水平。结果与健康对照组比较,结直肠癌组患者外周血CD4+CD25highFoxP3 Treg显著增多(P<0.01),CD4+CD25high Treg和CD4+CTLA-4 T细胞也增多(P<0.05)。结论CD4+CD25highFoxP3 Treg可能在结直肠癌发展过程中起着重要作用。     

Notch信号通路对急性B淋巴细胞白血病患者CD4+CD25+CD127dim/-调节性T细胞的调控作用

摘 要：［目的］ 观察急性B淋巴细胞白血病（B-cell acute lymphoblastic leukemia,B-ALL）患者外周血Notch信号通路分子表达和CD4+CD25+CD127dim/-调节性T细胞（regulatory T cells,Treg）水平,评估Notch信号通路对B-ALL患者Treg活性的影响。 ［方法］ 入组31例B-ALL患者和20名对照者,分选血浆和外周血单个核细胞（peripheral blood mononuclear cells,PBMC）,纯化CD4+CD25+CD127dim/- Treg。实时定量PCR法检测PBMC中Notch1~4、Hes1、Hes5 mRNA相对表达量,流式细胞术检测CD4+CD25+CD127dim/- Treg比例,酶联免疫吸附实验检测血浆白细胞介素10（interleukin-10,IL-10）和IL-35水平。使用Notch信号通路抑制剂GSI刺激B-ALL患者分选的PBMC,检测细胞增殖、Treg比例、IL-10和IL-35表达变化。使用GSI刺激B-ALL患者纯化的Treg,与自体PBMC以1∶10比例共培养,检测细胞增殖、IL-10、IL-35、干扰素-γ水平变化。两组间比较采用独立样本t检验或配对t检验。［结果］ B-ALL患者PBMC中Notch受体（包括Notch1、Notch2、Notch3、Notch4）和Notch下游信号分子Hes1、Hes5 mRNA相对表达量均较对照者升高（P<0.001）。B-ALL患者CD4+CD25+CD127dim/- Treg比例高于对照者（8.90%±2.41% vs 4.68%±1.01%,P<0.001）。B-ALL患者外周血IL-10和IL-35水平均高于对照者（P<0.05）。GSI刺激后B-ALL患者PBMC增殖水平与无GSI刺激组差异无统计学意义（P=0.689）,但GSI刺激后Treg比例和IL-10、IL-35水平均较无GSI刺激组降低（P<0.05）。使用GSI刺激Treg后与自体PBMC共培养,其抑制PBMC增殖的能力减弱（P<0.001）,IL-10和IL-35水平减少（P<0.05）,但干扰素-γ水平增加（P<0.001）。［结论］ B-ALL患者外周血中Notch受体表达升高可能诱导CD4+CD25+CD127dim/- Treg数量增加和免疫抑制活性增强。     

贲门癌患者外周血CD4+CD25hiCD127low调节性T细胞水平及其临床意义

目的 探讨贲门癌患者的免疫功能异常及其临床意义.方法 采用流式细胞术(FCM)和酶联免疫吸附(ELISA)方法分别检测56例贲门癌患者、15名健康人外周血中CD4+CD25hiCD127lowc调节性T细胞(Treg细胞)和血清IL-10、TGF-β1水平,结合临床资料进行分析.结果 56例贲门癌患者外周血中CD4+CD25hiCD127lowTreg细胞占CD4+淋巴细胞的比例为(5.73±1.56)%,与健康对照组的(4.45±1.06)%相比,差异有统计学意义(P<0.01);血清中IL-10和TGF-β1含量均明显高于健康对照(P<0.05).贲门癌患者外周血CD4+CD25hiCD127low Treg细胞水平与血清IL-10和TGF-β1含量呈正相关.贲门癌患者外周血CD4+CD25hiCD127low Treg细胞数量与患者临床分期、淋巴结转移有关.结论 贲门癌患者外周血中CD4+CD25hiCD127low Treg细胞表达增高,与临床分期有关,提示Treg水平异常与贲门癌的发生发展密切相关.     

原发性肝癌患者CD4+CD25+CD127low调节性T细胞的检测及意义

探讨CD4+CD25+CD127low调节性T细胞（Tregs）在原发性肝细胞性肝癌（HCC）患者外周血中的变化及其临床意义。方法：采集40例乙型肝炎病毒（HBV）相关的HCC患者［巴塞罗那临床肝癌（BCLC）分期A期患者7例、B期患者8例、C期患者20例、D期患者5例］、35例慢性乙型肝炎（CHB）患者及28例正常健康人的外周抗凝血,应用CD4（PE-CY5）、CD25（FITC）、CD127（PE）三种特异性荧光抗体标记后,通过流式细胞术对CD4+CD25+CD127lowTregs水平进行三色荧光抗体检测。结果：HCC患者外周血CD4+CD25+CD127lowTregs占CD4+T细胞的百分比显著高于正常健康人（P<0.001）和CHB患者（P=0.017）,CHB患者外周血CD4+CD25+CD127lowTregs占CD4+T细胞的百分比高于正常健康人（P=0.035）;HCC中BCLC分期为C期的患者外周血CD4+CD25+CD127lowTregs占CD4+T细胞的百分比显著高于A期患者（P=0.020）和B期患者（P=0.019）。结论：CD4+CD25+CD127lowTregs水平异常增高可能是HCC免疫逃逸的一个重要机制,且其变化水平与临床病情的进展存在一定的相关性。     

贲门癌患者外周血CD4+CD25hiCD127low调节性T细胞水平及其临床意义

Objective To analyse the dysfunction of immunity and clinical significance in patients with cardiac cancer.Methods The level of CD4+ CD25hi CD127low Treg cells were detected by flow cytometry (FCM),and serum IL-10 and TGF-β1 levels were determined by enzyme linked immunosorbent assay (ELISA) kit in 56 patients with cardiac cancer.15 healthy volunteers were tested as normal controls.The clinical data of each patient were collected and analyzed. Results There was a significantly higher percentage of CD4+ CD25hi CD127low Treg cells in patients with cardiac cancer (5.73±1.56)% than that (4.45±1.06)% of healthy volunteers (P<0.01).The IL-10 and TGF-β1 levels in the serum of patients with cardiac cancer were also significantly higher than that of healthy volunteers (P<0.05).There was a positive correlation between levels of IL-10.TGF-β1 and the levels of CD4+ CD25hi CD127low Treg cells.The number of CD4+ CD25hi CD127low regulatory T cells in the peripheral blood of cardiac cancer patients were significantly correlated with clinical stages and metastasis lymph node.Conclusion The CD4+ CD25hi CD127low Treg cells in the peripheral blood of cardiac cancer patients is significantly increased in comparison with that in healthy volunteers,and was also correlated with different stages.The abnormal levels of CD4+ CD25hi CD127low Treg cells may be related to tumor progression in patients with cardiac cancer.     

贲门癌患者外周血CD4+CD25hiCD127low调节性T细胞水平及其临床意义

Objective To analyse the dysfunction of immunity and clinical significance in patients with cardiac cancer.Methods The level of CD4+ CD25hi CD127low Treg cells were detected by flow cytometry (FCM),and serum IL-10 and TGF-β1 levels were determined by enzyme linked immunosorbent assay (ELISA) kit in 56 patients with cardiac cancer.15 healthy volunteers were tested as normal controls.The clinical data of each patient were collected and analyzed. Results There was a significantly higher percentage of CD4+ CD25hi CD127low Treg cells in patients with cardiac cancer (5.73±1.56)% than that (4.45±1.06)% of healthy volunteers (P<0.01).The IL-10 and TGF-β1 levels in the serum of patients with cardiac cancer were also significantly higher than that of healthy volunteers (P<0.05).There was a positive correlation between levels of IL-10.TGF-β1 and the levels of CD4+ CD25hi CD127low Treg cells.The number of CD4+ CD25hi CD127low regulatory T cells in the peripheral blood of cardiac cancer patients were significantly correlated with clinical stages and metastasis lymph node.Conclusion The CD4+ CD25hi CD127low Treg cells in the peripheral blood of cardiac cancer patients is significantly increased in comparison with that in healthy volunteers,and was also correlated with different stages.The abnormal levels of CD4+ CD25hi CD127low Treg cells may be related to tumor progression in patients with cardiac cancer.     

膀胱癌患者外周血CD4+ CD25high调节性T细胞

目的:分析CD4+ CD25high T细胞(Treg)在膀胱癌患者外周血中的分布,初步探讨其临床意义。方法:采用流式细胞术检测59例膀胱癌患者及20名健康人外周血中Treg的比例,探讨其表型特征并分析Treg比例与临床病理特征的关系。结果:与正常对照〔(2.391±1.198)%〕相比,膀胱癌患者外周血中Treg比例明显增加〔(12.429±6.908)%〕,差异有统计学意义,t=3.76,P<0.01;手术后患者外周血中Treg的比例有所下降,与术前比较差异有统计学意义,P<0.05;Treg水平与各临床病理参数之间差异无统计学意义,P>0.05。表型分析显示,Treg高表达CD45RO、HLA-Ⅰ和Foxp3分子,较高水平表达OX40、GITR、CD152、CD95和CD95L,低表达CD80、CD86和CD154分子,基本不表达CD45 RA和CD69分子,HLA-DR的表达水平在个体间差异较大。结论:膀胱癌患者外周血CD4+CD25 high T细胞水平明显升高,可能与肿瘤免疫功能低下及肿瘤发生发展密切相关。     

CD4+CD25+调节性T细胞在肿瘤免疫中的作用

CD4 CD25 调节性T(Tr)细胞是CD4 调节性T细胞的一个重要亚群,具有免疫低反应性和免疫抑制性两大功能特征,其作用机制可能是通过细胞间直接接触和/或分泌抑制性细胞因子.在维持机体免疫内环境稳定、防止自身免疫性疾病发生、诱导移植耐受以及调节肿瘤免疫方面都起着重要作用.文章就该类细胞的研究近况及其在调节肿瘤免疫方面的作用作一综述.     

胃癌患者外周血CD4+CD25highCD127low/-调节性T细胞达临床意义分析

目的:研究CD4+ CD25high CD12low/-调节性T细胞(Treg)在胃癌患者外周血中的表达水平,探讨其在肿瘤发病机制及治疗中的作用.方法:采用流式细胞术检测法检测90例胃癌患者(35例为早中期胃癌,55例为晚期胃癌)和3(名健康体检者外周血中CD4+ CD25high CD127low/-Treg的表达水平.结果:90例胃癌患者外周血CD4+T细胞中CD4+CD25highCD127low/-Treg含量为(11.60±5.99)％,高于健康体检者(5.19±1.72)％,t=5.610,P=0.007;Ⅲ+Ⅳ期患者外周血CD4+T细胞中CD4+ CD25high CD127low/-Treg含量为(12.55±6.59)％,明显高于Ⅰ+Ⅱ期患者(10.39±4.68)％(t=4.113,P=0.04)和健康体检者(5.19±1.72)％(t=5.923,P=0.001).手术后胃癌患者CD4+ CD25high CD127low/-Treg水平为(6.12±2.13)％,明显低于手术前(11.25士5.63)％,t=5.237,P=0.04.结论:胃癌患者外周血CD4+ CD25highCD127low/-Treg数量增多且与病程分期相关,手术后Treg数量明显减少,Treg可能参与了胃癌的发生发展.     

肝癌患者CD4+CD25+调节性T细胞的检测及其临床意义

背景与目的CD4 CD25 调节性T细胞(CD4 CD25 regulatoryTcells)在自身免疫耐受、移植和抗肿瘤应答中起着重要的作用,它们在肿瘤患者中的作用机制尚未阐明。本研究分析、探讨肝癌患者肿瘤组织和外周血CD4 CD25 调节性T细胞频率的临床意义。方法应用流式细胞仪分析肝癌患者的肿瘤组织、外周血和非肝癌对照组中单个核细胞(PBMCs)的CD4 CD25 调节性T细胞频率。结果肝癌患者外周血CD4 CD25 T细胞占PBMCs(6.9±2.8)%,肝癌组织CD4 CD25 T细胞占(6.7±1.6)%,均较对照组显著增高。并且CD4 CD25 T细胞的阳性率与淋巴结转移率和TNM分期存在相关性。淋巴结转移阳性和TNM分期越晚,CD4 CD25 T细胞的阳性率越高。结论CD4 CD25 调节性T细胞在肝癌患者中比例升高,可能是肝癌患者细胞免疫功能削弱的机制之一。     

肺癌患者外周血CD+4CDHi25CDLo127调节性T细胞检测的临床意义

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.     

肺癌患者外周血CD+4CDHi25CDLo127调节性T细胞检测的临床意义

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.     

肺癌患者外周血CD+4CDHi25CDLo127调节性T细胞检测的临床意义

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.     

肺癌患者外周血CD+4CDHi25CDLo127调节性T细胞检测的临床意义

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.     

肺癌患者外周血CD+4CDHi25CDLo127调节性T细胞检测的临床意义

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.     

肺癌患者外周血CD+4CDHi25CDLo127调节性T细胞检测的临床意义

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.     

肺癌患者外周血CD+4CDHi25CDLo127调节性T细胞检测的临床意义

Objective To evaluate the changes and clinical significance of CD+4CDHi25CDLo127 regulatory T cell(Treg) in peripheral blood of patients with lung cancer. Methods 30 patients with lung cancer and 20 heathy volunteers were included in this study. The proportion of Treg population in CD4+ T cells stained with three colors was analysed by flow cytometry. The serum level of IL-10 and TGF-β were measured by ELISA. Results The proportion of Treg in patients with squamous cell careinoma(n=20), adenocarcinoma (n=10) were all significantly higher than that of healthy controls (P <0.05), but there was not obvious difference between the two groups with different pathological types(P0.05). Increased serum level of IL-10 and TGF-β was also detected in lung cancer patients. Conclusion The proportion of Treg is increased in lung cancer patients, which may result in the inhibition of host anti-cancer immune response by excreting IL-10 and TGF-β.     

CD4+T细胞在肝细胞癌中的作用

CD4+T细胞为一系列多功能细胞,研究发现肝细胞癌(HCC)中大部分CD4+T细胞亚群可通过活化或抑制机体固有免疫细胞、适应性免疫细胞及非免疫细胞等,参与肿瘤血管生成及浸润、肿瘤细胞凋亡、急性期蛋白及促癌基因的表达,进而发挥肿瘤促进或抑制作用.     

肿瘤患者CD4+CD25+调节性T细胞流式细胞术分析

目的:分析比较肿瘤患者和健康人外周血CD4+CD25+调节性T细胞的特点,为肿瘤免疫学研究及治疗探索新方法.方法:收集并分离30例肿瘤患者和32例健康人的外周血单个核细胞(PBMCs),用荧光标记的抗人CD4及抗人CD25单抗标记肿瘤患者和健康人PBMCs细胞,FCM检测CD4+CD25+Treg细胞,分析CD4+CD25+Treg细胞在肿瘤患者和健康人中的差别.结果:肿瘤患者的CD4+CD25+Treg细胞百分数明显高于健康人(年龄<55者62.4 vs 40.4;年龄≥55者53.1 vs 31.0,P<0.05).结论:肿瘤患者的CD4+CD25+Treg细胞高于健康对照,为肿瘤免疫治疗提供新策略,通过删除CD4+CD25+Treg细胞,有可能增强抗瘤免疫反应.