肺癌患者肿瘤浸润淋巴细胞中IL-17的分布特征及临床意义

目的:探讨肺癌患者肿瘤浸润淋巴细胞中IL-17的分布特征及其临床意义。方法:流式细胞术检测15例肺癌组织和15例配对远癌正常组织中浸润淋巴细胞的IL-17表达水平。结果:肺癌患者肿瘤组织浸润淋巴细胞中IL-17A显著高于远癌正常组织（P＜0.000 1）,肿瘤组织中浸润产生IL-17的CD3+CD4+T细胞（Th17）（P＜0.001）、CD3+CD8+T细胞（Tc17）（P＜0.001）、γδT细胞（γδT17）(P＜0.000 1)均高于远癌正常组织;肺癌患者肿瘤组织浸润Th17和Tc17水平无明显差异（P＞0.05）,而γδT17水平显著高于Th17（P＜0.001）和Tc17（P＜0.000 1）;肿瘤组织中浸润的γδT17表达水平和淋巴结转移相关（P＜0.05）。结论:IL-17和肺癌发生相关,其早期主要来源是肿瘤浸润的γδT细胞;γδT17数量与淋巴结转移有关,提示γδT17细胞可能参与肺癌病程的进展。     

肺癌患者调节性T细胞与NK细胞活化受体NKG2D的相关性及其临床意义

目的 分析肺癌患者外周血中CD+4 CDHi25 CDLo127调节性T细胞及自然杀伤细胞(NK细胞)活化受体NKG2D的表达水平之间的关系,探讨其在肿瘤免疫逃逸机制中的作用及临床意义.方法 选择70例肺癌患者,均经病理确诊.采用流式细胞术(FCM)检测患者外周血中CD+4 CDHi25 CDLo127调节性T细胞、NK细胞及NKG2D表达水平,并以50名健康人为对照.结果 肺癌患者外周血中CD+4 CDHi25 CDLo127调节性T细胞比例较健康对照组明显升高[(8.4±4.1)％与(6.7±1.7)％],差异有统计学意义(t=3.09,P＜0.05);肺癌组NK细胞比例与健康对照组比较[(15.6±8.3)％与(17.2±4.2)％],差异无统计学意义(t=-1.33,P＞0.05);肺癌组NKG2D较健康对照组明显降低[(83.3±4.9)％与(87.4±2.9)％],差异有统计学意义(t=3.16,P＜ 0.05).CD+4 CDHi25 CDLo127调节性T细胞与NKG2D呈负相关性(r=-0.302,P＜0.05).结论 在肺癌患者外周血中调节性T细胞可能通过下调NKG2D,参与肿瘤免疫逃逸机制,二者可作为评估肺癌患者免疫功能状态及预后的参考指标.     

非小细胞肺癌患者外周血Th17细胞比例和血清IL-17水平的检测及其临床意义

目的 探讨非小细胞肺癌(NSCLC)患者外周血Th17细胞比例和自细胞介素-17(IL-17)水平的变化及其与患者临床病理的关系.方法 收集60例原发未治疗的NSCLC患者(NSCLC组)和20例健康志愿者(对照组),采用流式细胞术(FCM)检测Th17细胞比例,采用酶联免疫吸附试验(ELISA)检测血清IL-17水平.结果 NSCLC组Th17细胞占CD+3 T细胞比例高于对照组[(1.23±0.41)％比(1.05±0.28)％,t=1.679,P=0.097],鳞状细胞癌患者外周血Th17细胞比例明显高于腺癌患者[(1.31±0.39)％比(1.09±0.41)％,t=2.093,P=0.041].NSCLC组IL-17水平明显高于健康对照组[(21.11±7.87) pg/ml比(17.64±5.07)pg/ml,t=2.280,P=0.027],鳞状细胞癌患者血清IL-17表达水平明显高于腺癌患者[(23.11±8.73) pg/ml比(18.54±6.38)pg/ml,t=2.203,P=0.032].Th17细胞比例、IL-17的表达水平随临床分期的进展呈下降趋势[F=3.151,P=0.032;F=4.132,P=0.010].结论 NSCLC患者外周血中Th17细胞比例和IL-17的表达与肿瘤病理分型、TNM分期相关,可能在NSCLC的病程中发挥重要作用.     

CD8+CD25+FOXP3+调节性T淋巴细胞在恶性胸腔积液中的表达及其临床意义

目的 通过检测恶性胸腔积液中CD8+CD25+Foxp3+调节性T淋巴细胞(T8reg)的表达,探讨其与恶性胸腔积液患者临床预后的关系.方法 同步采集30例肺癌合并胸腔积液患者的胸腔积液和外周血,20例良性胸腔积液患者的胸腔积液和外周血,另采集20例健康对照者外周血,用流式细胞术检测上述标本中CD8+CD25+Foxp3+T淋巴细胞的表型、百分比,分析其与恶性胸腔积液患者生存时间的关系.结果 恶性胸腔积液组中T8reg占总CD8+T细胞的比例显著高于良性胸腔积液组[(2.20±0.25)%vs(0.38±0.05)%,P=0.018],亦高于自身外周血组[(0.52±0.06)%,P=0.000],恶性胸腔积液患者外周血中T8reg的比例高于正常健康者外周血中的比例[(0.52±0.06)%vs(0.31±0.04)%,P=0.005].而良性胸腔积液组胸腔积液、外周血(0.34±0.04)%与健康对照组外周血三组中T8reg细胞的数量占总CD8+T细胞比例没有明显升高,差别没有统计学意义(P＞0.05).T8reg高、低表达水平组患者的中位生存时间分别为105、195d,两者差异有统计学意义(P=0.004).Cox回归模型多因素分析显示MPE中T8reg的表达水平、肿瘤大小是影响MPE患者预后的独立因素(P值分别为0.018、0.006).结论 肺癌伴胸膜转移患者的MPE及其外周血T8reg细胞的比例明显增高;MPE中T8reg细胞表达下降预示MPE患者生存率会明显改善,提示CD8+CD25+Foxp3+T细胞在肺癌发生、发展的免疫病理过程中具有显著意义.     

肺癌脑转移患者Th17细胞和IL-17水平变化的研究

背景与目的 Th17细胞是一种重要的辅助性T细胞,其主要分泌IL-17等细胞因子,在感染免疫、自身免疫性疾病和肿瘤免疫中均有重要意义。本研究旨在探讨Th17细胞和IL-17在肺癌脑转移患者外周血中的表达及IL-17在肺癌脑转移患者脑脊液中的表达和意义。方法流式细胞术检测22例肺癌脑转移患者和20名正常对照外周血Th17(CD3+CD4+IL-23R+)细胞的百分率,ELISA方法检测22例肺癌脑转移患者和20名正常对照血浆IL-17水平,ELISA方法检测19例肺癌脑转移患者和16例无脑转移肺癌患者脑脊液IL-17水平。结果肺癌脑转移患者外周血Th17细胞百分率(4.65%±0.72%)明显高于正常对照(2.71%±0.54%,P=0.04);其中非小细胞肺癌(non-small cell lung cancer,NSCLC)患者和小细胞肺癌(small cell lung cancer,SCLC)患者没有差异。肺癌脑转移患者血浆IL-17水平明显高于正常对照(117.4±16.43 pg/mL和72.55±8.19 pg/mL,P=0.02);其中NSCLC患者和SCLC患者没有差异。肺癌脑转移患者脑脊液IL-17水平明显高于无脑转移的肺癌患者(73.21±7.52 pg/mL和50.25±8.04 pg/mL,P=0.04)。结论肺癌脑转移患者外周血Th17细胞数量增多,血浆IL-17和脑脊液IL-17水平升高,Th17细胞和IL-17可能参与了肺癌脑转移的发生和发展。     

白细胞介素17调节弥漫大B细胞淋巴瘤小鼠主要组织相容性复合体Ⅱ的表达及其与肿瘤进展关系的研究

目的 通过体外培养的Th17细胞过继免疫治疗弥漫大B细胞淋巴瘤(DLBCL)小鼠,分析白细胞介素17(IL-17)水平与主要组织相容性复合体Ⅱ(MHCⅡ)表达的相关性及其与肿瘤发生发展的关系.方法 免疫磁珠法分离纯化BALB/c小鼠脾来源的CD4+CD62L+T细胞,加入抗CD3抗体、抗CD28抗体、转化生长因子β(TGF-β)、IL-6体外培养Th17细胞,人生发中心B细胞样(GCB)DLBCL细胞株SUDHL-4传代培养后接种到严重联合免疫缺陷(SCID)小鼠,建立DLBCL小鼠模型.将荷瘤小鼠分为Th17细胞实验组(30只)和对照组(20只),实验组荷瘤小鼠接种Th17细胞,对照组注射0.9％NaCl溶液.分别于预实验得到的小鼠肿瘤中位发病时间和小鼠中位生存时间处死半数小鼠.酶联免疫吸附法(ELISA)检测小鼠肿瘤组织IL-17表达,免疫组织化学法检测MHCⅡ的表达.结果 DLBCL小鼠肿瘤中位发病时间为8d,中位生存期为28d.Th17细胞接种后IL-17表达水平[(11.93±0.56)pg/ml]较对照组[(9.82±0.26)pg/ml]升高(P＜ 0.000 1),随着肿瘤病程进展,IL-17表达水平降低[(9.53±0.18)pg/ml](P＜ 0.000 1);Th17细胞接种后MHCⅡ阳性细胞比例[(69.13±0.36)％]较对照组[(42.59±0.12)％]升高(P＜ 0.000 1),随着肿瘤病程进展,MHCⅡ阳性细胞比例降低[(54.63±0.45)％](P＜ 0.000 1).IL-17与MHCⅡ之间存在正相关性(r=0.89,P=0.000).结论 IL-17可上调DLBCL小鼠肿瘤组织MHCⅡ表达,且随着肿瘤病程进展,MHCⅡ表达下降.MHCⅡ表达水平可作为DLBCL疾病状态的判断指标,而其正向调控因子IL-17表达水平的上调会影响DLBCL的疾病进程,联合检测IL-17和MHCⅡ表达水平对判断DLBCL疾病状态及进程可能更有参考价值.     

晚期非小细胞肺癌患者外周血CD4~+ CD25~+ FOXP3~+调节性T细胞的表达及临床意义

目的探讨晚期非小细胞肺癌患者外周血CD4~+ CD25~+ FOXP3~+ 调节性T(Treg)细胞的表达及其临床意义。方法采用免疫荧光术及流式细胞仪检测50例晚期非小细胞肺癌患者及50例健康对照组外周血中CD4~+ CD25~+ FOXP3~+ Treg细胞、CD4~+ CD25~+ Treg细胞、CD4~+ T细胞和CD4~+ CTLA-4~+ T细胞的表达。结果晚期非小细胞肺癌患者外周血中CD4~+ CD25~+ FOXP3~+ Treg细胞、CD4~+ CD25~+ Treg细胞和CD4~+ CTLA-4~+ T细胞的比例均高于健康对照组(均P<0.05),CD4~+ T细胞的比例均低于健康对照组(均P<0.05)。结论晚期非小细胞肺癌患者外周血CD4~+ CD25~+ FOXP3~+ Treg细胞比例高于健康对照者,可能与肺癌患者的免疫抑制和肿瘤进展相关。     

CD4+CD25+调节性T细胞对晚期肺癌患者免疫抑制作用的研究

目的 探讨Treg及Th1/Th2类细胞因子在晚期肺癌肿瘤免疫抑制中的作用.方法 选取100例初治晚期肺癌患者及50例健康自愿者.采用流式细胞术检测其外周血中Treg、Th1类细胞因子(IFN-γ、IL-2、TNF-a)、Th2类细胞因子(IL-4、IL-6、IL-10)水平,同时分析CD4+CD25+Treg与Th1/Th2类细胞因子之间的相关性.结果 ①晚期肺癌患者外周血中Treg为(11.12±5.83)%,高于健康对照组(7.46±3.07)%,差异有统计学意义(P=0.003);②化疗前肺癌患者外周血中Treg为(11.12±5.83)%,明显高于化疗后(6.45±3.74)%,差异有统计学意义(P<0.001);③晚期肺癌患者与正常对照组Th1/Th2类细胞因子水平分别为:IFN-γ(8.56±3.62 vs 10.79±3.27,P=0.049)、IL-2(8.48±2.87 vs 10.22±4.03,P=0.03)、TNF-a(6.18±2.67vs8.14±2.87,P=0.007)、IFN-γ/IL-4(3.33±1.44 vs 4.09±1.00,P=0.028)、IL-4(3.17±1.19 vs 2.45±0.43,P<0.001)、IL-6(3.88±2.08 vs 2.33±0.88,P<0.001)、IL-10(3.64±1.73 vs 2.54±1.08,P=0.008),其中Th2类因子水平明显升高,差异有统计学意义(P均<0.05);④CD4+CD25+Treg与Th1类细胞因子IFN-γ、TNF-a、IL-2及IL-6无相关性(P均>0.05);与Th1/Th2(γ=-0.273,P=0.003)呈负相关;与Th2类细胞因子IL-4(γ=0.237,P=0.009)、IL-10(0.626,P<0.001)呈正相关(P均<0.05).结论 晚期肺癌患者CD4+CD25+Treg、Th2类细胞因子水平显著升高,Th1类细胞因子水平下降,它们共同导致肿瘤患者免疫抑制及肿瘤进展,监测其水平变化有助于判断肺癌患者疗效、预后,有效调控CD4+CD25+Treg及负性细胞因子水平可能是治疗肺癌的一个新策略.     

食管癌患者CD4+CD25+调节性T细胞的检测及意义

目的:探讨CD4+CD25+调节性T细胞在食管癌局部及全身免疫中的作用.方法:流式细胞仪检测97例食管癌患者外周血和20例肿瘤组织的CD4+CD25+调节性T细胞比例,比较不同病理类型、不同分期等食管癌患者外周血及肿瘤局部组织的CD4+CD25+调节性T细胞的分布变化.结果:食管癌患者肿瘤组织CD4+CD25+调节性T细胞比例为(18.97±2.38)%,高于患者外周血比例[(17.57±3.99)%],差异无统计学意义,t=1.511,P＞0.05;食管癌患者肿瘤组织及外周血中CD4+CD25+调节性T细胞占CD4+T淋巴细胞的比例,均高于同期健康对照组患者外周血的比例(9.35±1.41)%,差异有统计学意义,t值分别为12.111和8.332,P值均＜0.01.CD4+CD25+调节性T细胞水平与临床分期(F=9.384)、有无淋巴结转移(t=2.326)有关,P值均＜0.05.结论:食管癌患者全身及肿瘤局部均存在免疫异常,推测CD4+CD25+调节性T细胞可能参与了食管癌的发生与发展.     

急性白血病患者外周血Treg细胞与Th17细胞的相关性

目的:检测急性白血病患者外周血中Treg细胞与Th17细胞的比例以及相关细胞因子如IL-17、IL-6、TGF-β的变化,分析其相关性。方法:选取兰州大学第二医院血液科急性白血病初诊患者15例,另取15名健康志愿者为对照。流式细胞术检测外周血中CD3+CD4+TIL-17+辅助性T细胞(Th17细胞)、CD4+TCD25+Foxp3+调节性T细胞(Treg细胞)占CD4+T细胞的比例,ELISA法检测血清中细胞因子IL-17、TGF-β、IL-6的水平。结果:急性白血病患者外周血中Th17细胞占CD4+T细胞的(1.39±0.24)%,高于对照组的(0.26±0.11)%(P<0.05);急性白血病患者外周血Treg细胞占CD4+T细胞的(11.58±2.17)%,高于对照组的(2.47±0.72)%(P<0.05);且Treg细胞与Th17细胞呈正相关(γ=0.37)。急性白血病患者血清中TGF-β、IL-6、IL-17的水平分别为(26.06±2.43)、(14.66±2.47)、(18.63±2.38)pg/ml,高于对照组的(13.41±1.92)、(1.44±0.29)、(10.34±1.71)pg/ml(均P<0.05)。结论:急性白血病患者外周血中Treg、Th17细胞比例升高,且两者呈正相关;急性白血病患者血清中TGF-β、IL-6、IL-17水平升高,可能影响Treg与Th17细胞的平衡。     

CD4+ and CD8+ T cells have opposing roles in breast cancer progression and outcome

The Cancer Immunoediting concept has provided critical insights suggesting dual functions of immune system during the cancer initiation and development. However, the dynamics and roles of CD4⁺ and CD8⁺ T cells in the pathogenesis of breast cancer remain unclear. Here we utilized two murine breast cancer models (4T1 and E0771) and demonstrated that both CD4⁺ and CD8⁺ T cells were increased and involved in immune responses, but with distinct dynamic trends in breast cancer development. In addition to cell number increases, CD4⁺ T cells changed their dominant subsets from Th1 in the early stages to Treg and Th17 cells in the late stages of the cancer progression. We also analyzed CD4⁺ and CD8⁺ T cell infiltration in primary breast cancer tissues from cancer patients. We observed that CD8⁺ T cells are the key effector cell population mediating effective anti-tumor immunity resulting in better clinical outcomes. In contrast, intra-tumoral CD4⁺ T cells have negative prognostic effects on breast cancer patient outcomes. These studies indicate that CD4⁺ and CD8⁺ T cells have opposing roles in breast cancer progression and outcomes, which provides new insights relevant for the development of effective cancer immunotherapeutic approaches.     

gp100/pmel17 and tyrosinase encode multiple epitopes recognized by Th1-type CD4+T cells.

CD4+ T cells modulate the magnitude and durability of CTL responses in vivo, and may serve as effector cells in the tumour microenvironment. In order to identify the tumour epitopes recognized by tumour-reactive human CD4+ T cells, we combined the use of an HLA-DR4/peptide binding algorithm with an IFN-gamma ELISPOT assay. Two known and three novel CD4+ T cell epitopes derived from the gp 100/pmel17 and tyrosinase melanocyte-associated antigens were confirmed or identified. Of major interest, we determined that freshly-isolated PBMC frequencies of Th1-type CD4+ T recognizing these peptides are frequently elevated in HLA-DR4+ melanoma patients (but not normal donors) that are currently disease-free as a result of therapeutic intervention. Epitope-specific CD4+ T cells from normal DR4+ donors could be induced, however, after in vitro stimulation with autologous dendritic cell pulsed with antigens (peptides or antigen-positive melanoma lysates) or infected with recombinant vaccinia virus encoding the relevant antigen. Peptide-reactive CD4+ T cells also recognized HLA-DR4+ melanoma cell lines that constitutively express the relevant antigen. Based on these data, these epitopes may serve as potent vaccine components to promote clinically-relevant Th1-type CD4+ T cell effector function in situ.     

rhIL-17对小鼠造血前体细胞和人脐血CD34+干细胞分化发育的影响 *

目的:探讨重组人白细胞介素-17(Interleukin-17,IL-17)对小鼠骨髓造血前体细胞和人脐血来源的CD34~ 干细胞生长发育的影响.方法:采用常规方法采集小鼠造血前体细胞;采用Mini-MACS分离技术,从正常人脐血分离人CD34~ 干细胞.体外加入IL-17和/或GM-CSF、IL-4培养分离的前体细胞,应用流式细胞仪检测其表型,采用ELISA法检测了其分泌的IL-12水平,通过[~3H]-TdR掺入法测定其刺激同种异体T淋巴细胞增殖的能力.结果:IL-17促进了小鼠骨髓来源的未成熟DC表达Ia,B7-2等免疫分子,促使其分泌较高水平的IL-12,该细胞也能刺激同种异体T细胞有效增殖,表现出了成熟DC的特征.IL-17单独培养9d促使人脐血CD34~ 干细胞扩增了2倍,部分细胞高表达CD1a及B7-2,低表达HLA-DR,未检测到CD83的表达.该细胞能促使同种异体T细胞增殖,但作用较弱;而rhIL-17与GM-CSF联合培养后扩增了14倍,培养细胞中CD1a、B7-2阳性细胞的比例明显升高,且此细胞刺激同种异体T细胞增殖的能力较强.结论:IL-17体外可促进小鼠骨髓造血前体细胞来源的DC成熟;与GM-CSF联合培养既能促进CD34~ 干细胞增殖,又能使之获得DC特征,初步提示IL-17与GM-CSF联合作用可促进CD34~ 干细胞向DC分化.     

Interleukin 22-producing CD4(+) T cells in malignant pleural effusion

Th22 cells have been reported to be involved in human cancers. However, differentiation and immune regulation of Th22 cells in malignant pleural effusion (MPE) remain unknown. We noted that Th22 cell numbers were increased in MPE, and that IL-22 substantially promoted the proliferation and migratory activity of A549 cells. Moreover, IL-22 could strongly facilitate intercellular adhesion of A549 cells to pleural mesothelial cell monolayers. Our data revealed that the increase in Th22 cells in MPE was due to pleural cytokines and chemokines, and that Th22 exerted an important immune regulation on cancer cells in human pleural malignant environment.     

Th17细胞及IL-17在肿瘤免疫中的作用

辅助性T细胞17( Th17)和白细胞介素-17(IL-17)在多种肿瘤组织中分布和表达,其在肿瘤发生发展过程中起抗肿瘤还是促肿瘤作用目前尚未定论,因而有必要进一步研究它们在肿瘤微环境中的作用,希望在肿瘤治疗过程中趋利避害,提高疗效.     

IL-4, IL-17 and CD163 Immunoexpression and IL-6 Gene Polymorphism in Chronic Hepatitis C Patients and Associated Hepatocellular Carcinoma

Objective: To assess the expression of IL-4, IL-17 and CD-163 as well as study of IL6-572 C/G gene polymorphism in chronic HCV and HCC on top of HCV. Methods: Sixty HCC specimens and 60 adjacent hepatic tissue with HCV of different grades of necro-inflammation and different stages of fibrosis. In addition to 55 HCV, 60 HCC and 50 healthy venous blood samples for evaluation of IL6-572 C/G gene polymorphism. Results: high expression of IL-4, IL-17 and CD163 in higher grades of activity, late stages of fibrosis and higher degrees of steatosis of HCV. IL-4 and CD163 showed higher expression in advanced grades of HCC, while IL-17 more expressed in lower grades. No significant difference in IL6-572 C/G gene polymorphism among studied groups regarding G/C, G/G, C/C frequencies or G and C allele’s frequencies. Conclusion: IL-4, IL-17 and CD163 were associated with HCV severity. Their expression in HCC suggests their important role in HCC development. Blocking of these proteins may be a good target to control inflammation in HCV and can hinder progression to cirrhosis then to HCC. On the other hand, IL6-572 promoter gene polymorphism is neither associated with HCV infection nor with HCC development and its progression.     

Role of IL-2, IL-4 and IL-6 in the growth and differentiation of tumor-specific CD4+ T helper and CD8+ T cytotoxic cells

We have earlier observed that 1,3-bis (2-chloroethyl)-1-nitrosourea (BCNU), a chemotherapeutic drug, cured 90-100% of mice bearing a syngeneic Ia- T-cell lymphoma (LSA) and furthermore, 100% of the BCNU-cured mice could reject homologous tumor rechallenge. In the present study, purified CD4+ and CD8+ T cells isolated from BCNU-cured mice were used to investigate the mechanism by which such T cells recognized and responded to the tumor-specific antigens. The responsiveness of CD4+ T cells to LSA was dependent on processing and presentation of tumor-specific antigens by syngenic Ia+ splenic antigen-presenting cells (APC). Such activated CD4+ T cells endogenously produced IL-2 but not IL-4 and only IL-2 acted as an autocrine growth factor inasmuch as anti-IL-2 receptor antibodies but not anti-IL-4 antibodies inhibited the CD4+ T cell proliferation. In contrast, the CD8+ T cells failed to produce endogenous growth factors when stimulated with LSA alone or with LSA plus APC, and therefore failed to proliferate. However, in the presence of exogenous recombinant IL-2 (rIL-2), CD8+ T cells could proliferate directly in response to LSA-stimulation, even in the absence of APC. Addition of exogenous rIL-4 alone to cultures induced CD4+ but not CD8+ T cells to proliferate. However, rIL-4 in the presence of rIL-2, could synergize and induce tumor-specific proliferation of CD8+ cells. These data suggested that for IL-4 to act as a T-cell growth factor, the presence of IL-2 was essential, either in the form of endogenously secreted IL-2 (CD4+ T cells) or exogenous IL-2 (for CD8+ T cells). In contrast to rIL-2 and rIL-4, rIL-6 failed to induce growth when used alone or in combination with rIL-2 or rIL-4. Furthermore, when tested individually, only rIL-2 but not rIL-4 or rIL-6 could support the cytotoxic differentiation of CD8+ T cells. The present study suggests that the early events in responsiveness to LSA tumor may involve activation of the IL-2-producing Th1 subpopulation of CD4+ helper cells which in turn activate IL-2 dependent CD8+ cytotoxic T cells. IL-4 if produced subsequently, may act synergistically with IL-2 to promote the growth of CD4+ and CD8+ T cells.     

非霍奇金淋巴瘤患者血中CD+4 CD+25 T细胞/CD+4 T细胞比率意义初探

  目的 探讨非霍奇金淋巴瘤（NHL）患者外周血中CD+4 CD+25 T细胞／CD+4 T细胞比率的意义。方法 应用流式细胞技术检测15例健康人、41例初诊NHL患者、16例CTOP方案化疗后完全缓解后的NHL患者及25例化疗后未达到完全缓解的患者单位体积内外周血中CD+4 CD+25 T细胞数量和CD+4 T细胞,计算CD+4 CD+25 T细胞占CD+4 T细胞的比率。结果 初诊NHL患者CD+4 CD+25 T细胞／CD+4 T细胞的比率为（7.54±2.31）％,高于健康者的（4.13±1.25）％（P＜0.05）;化疗完全缓解后NHL患者外周血CD+4 CD+25 T细胞／CD+4 T细胞的比率为（6.26±2.28）％,低于初诊化疗前患者的（7.54±2.31％）（P＜0.05）。化疗后未达到完全缓解患者CD+4 CD+25 T细胞／CD+4 T细胞的比率为（7.85±2.12）％,高于化疗后完全缓解的患者的比率（6.26±2.28）％（P＜0.05）。结论 化疗缓解后的NHL患者外周血中CD+4 CD+25 T细胞／CD+4 T细胞的比率较化疗前及化疗未缓解的患者降低,提示CD+4 CD+25 T细胞／CD+4 T细胞的比率可能与NHL患者免疫功能及治疗效果有关。     

IL-5-producing CD4+ T cells and eosinophils cooperate to enhance response to immune checkpoint blockade in breast cancer

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