胰腺癌患者外周血CD4-CD8-T细胞与IL-4、IFN-γ的关系

目的 研究胰腺癌患者外周血CD4-CD8-T细胞比例与IL-4、IFN-γ含量变化及其相互关系.方法 分别应用流式细胞仪及ELISA法检测25例胰腺癌患者和45名健康人外周血中CD4-CD8-T细胞比例和IL-4、IFN-γ的含量.结果 25例胰腺癌患者CD4-CD8-T细胞占CD3+T细胞的比例为(4.2±1.7)%,45名健康人CD4-CD8-T细胞占CD3+T细胞的比例为(6.3±2.6)%,两组之间差异有统计学意义(P＜0.01).胰腺癌患者外周血中IL-4含量为(86.3±23.3)fg/L,健康对照组外周血中IL-4含量为(56.2±9.2)fg/L,两组之间差异有统计学意义(P＜0.01).胰腺癌患者外周血中IFN-γ含量为(16.4±4.8)fg/L,健康对照组外周血中IFN-γ含量为(27.4±3.8)fg/L,两组之间差异有统计学意义(P＜0.01).胰腺癌患者手术后CD4-CD8-T细胞比例显著高于术前(P＜0.01).胰腺癌患者外周血CD4-CD8-T细胞比例与IL-4含量呈负相关,与IFN-γ含量呈正相关;胰腺癌患者CD4-CD8-T细胞比例、IL-4含量与肿瘤临床分期有关(P＜0.05),与肿瘤分化程度均无关(P＞0.05),IFN-γ含量与肿瘤临床分期和肿瘤分化程度均无关(P＞0.05).结论 CD4-CD8-T细胞在胰腺癌患者外周血中比例降低,CD4-CD8-T细胞可能通过影响IFN-γ的分泌参与胰腺癌的发生和发展.     

胰腺癌患者外周血CD4-CD8-T细胞的检测及其临床意义

目的 研究胰腺癌患者外周血CD4-CD8-T细胞含量,并探讨其含量与肿瘤的临床病理类型及临床分期的相关性.方法 应用流式细胞仪分析胰腺癌患者和健康对照组外周血中CD4-CD8-T细胞含量.结果 20例胰腺癌患者CD4-CD8-T细胞占CD3+T细胞的比例为(4.13±1.81)%;20例健康对照组CD4-CD8-T细胞占CD3+T细胞的比例为(6.39±1.83)%,两组之间差异有统计学意义(P＜0.01).高、中分化的胰腺癌患者CD4-CD8-T细胞占CD3+T细胞的比例为(4.41±1.66)%;低分化胰腺癌患者CD4-CD8-T细胞占CD3+T细胞比例为(4.18±2.32)%,两组之间差异无统计学意义(P＞0.05).Ⅲ、Ⅳ期胰腺癌患者CD4-CD8-T细胞占CD3+T细胞的比例为(2.96±1.50)%;Ⅰ、Ⅱ期胰腺癌患者CD4-CD8-T细胞占CD3+T细胞的比例为(5.09±1.50)%,两组之间差异有统计学意义(P＜0.01).结论 CD4-CD8-T细胞在胰腺癌中低表达,可能促进胰腺癌进一步发生发展.     

胰腺癌患者外周血CD4-CD8-T细胞及白细胞介素-2、-6、-7水平测定的研究

目的 检测60例胰腺癌患者及60例正常人外周血CD4-CD8-T细胞及白细胞介素(IL)-2、IL-6、IL-7水平,探讨其与胰腺癌的关系.方法 采用流式细胞仪检测60例胰腺癌患者外周血CD4 - CD8 -T细胞水平;酶联免疫吸附试验( ELISA)法检测60例胰腺癌患者外周血清IL-2、IL-6、IL-7水平,并与60名健康人群进行对照比较.结果 胰腺癌患者外周血CD4 - CD8 -T细胞占CD3+T细胞的比例为(3.43±0.88)％,低于正常人群(5.66±1.23)％(P＜0.05);胰腺癌患者外周血中IL-2水平为(2.00 ±0.42) ng/L,低于正常对照组(5.50 ±0.64) ng/L(P＜0.05);IL-6水平为(210.68±10.82) ng/L,高于正常对照组(1.77 ±0.22) ng/L(P＜0.05);IL-7水平为(1.89±0.32) ng/L,低于正常对照组(6.35 ±0.56) ng/L(P ＜0.05).结论 胰腺癌患者外周血中CD4-CD8-T细胞的比例降低,IL-2、IL-7水平降低及IL-6水平升高可能与胰腺癌的发生有关.     

CD4+CD25-T淋巴细胞转化为CD4-CD8-调节T细胞的体外实验研究

目的 探讨体外诱导和纯化CD4+ CD25-T淋巴细胞(effector T cell,Teff)转化为CD4-CD8-双阴性调节T细胞(double negative regulatory T cell,DN Treg)的最适条件.方法 采用免疫磁珠分选方法提取C57BL/6小鼠的CD4+ CD25-T淋巴细胞、DBA/2小鼠的成熟树突状细胞共培养,加入不同剂量的IL-2,通过流式细胞检测CD4-CD8-T细胞的转化比例并确定最适条件,免疫磁珠阴性选择分选提纯转化的CD3+ CI4-CD8-T细胞,流式细胞仪检测转化的CD4-CD8-调节T细胞对CD4+ CD25-效应T细胞增殖抑制情况.结果 CD4+ CD25-T淋巴细胞与DBA/2小鼠的树突状细胞共培养6d后检测CD4-CD8-调节T细胞的转化比率为6.21％ ±2.03％,实验组加入不同浓度IL-2的转化率:A组(25 ng/ml)为14.77％±2.15％,B组(50 ng/ml)为21.29％±2.68％,C组(75 ng/ml)为43.45％ ±4.45％,D组(100 ng/ml)为28.59％±3.05％,IL-2浓度在75 ng/ml时,转化获得率最高(C组与对照组、实验A、B、D组比较分别t=10.700,8.288,6.158,3.932,均P＜0.05);分离提纯CD4-CD8-双阴性调节细胞纯度达到98.10％,CD4-CD8-双阴性调节细胞与CFSE染色的CD4+ CD25-T淋巴细胞、小鼠树突状细胞共培养6d,实验组增殖指数为1.15明显低于对照组2.07.结论 小鼠CD4+ CW25-T淋巴细胞在体外,成熟树突状细胞刺激下可转化为CD4-CD8-双阴性调节T细胞,IL-2可显著提高其转化率.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

幽门螺杆菌感染对慢性荨麻疹患者外周血γ-干扰素和白细胞介素-4的调控机制

目的探讨并发幽门螺杆菌感染的慢性荨麻疹患者外周血γ-干扰素(IFN-γ)和白细胞介素-4(IL-4)的调控机制。方法随机选取2014年7月至2015年5月于本院就诊且具有较为典型临床表现的慢性荨麻疹患者共70例,选择同期于本院体检的50例健康人为对照组;筛选抗-Hp阴性和抗-Hp阳性患者,采用ELISA法检测其外周血IFN-γ和IL-4水平。结果慢性荨麻疹患者与对照组患者抗-Hp阳性率存在较大差异;对照组患者中抗-Hp阳性和抗-Hp阴性者IFN-γ水平差异无统计学意义。慢性荨麻疹患者组中抗-Hp阳性患者IFN-γ和IL-4水平分别为(298.74±35.46)pg/ml和(251.31±29.98)pg/ml,低于抗-Hp阴性患者的(322.45±50.02)pg/ml和(214.45±51.01)pg/ml,差异均具有统计学意义(t=1.734、P=0.034,t=3.569、P=0.028);慢性荨麻疹患者IFN-γ及IL-4水平为(122.74±81.36)pg/ml和(297.12±79.14)pg/ml,对照组患者分别为(89.46±34.56)pg/ml和(1 512.12±151.24)pg/ml,差异具有统计学意义(t=2.374、P=0.016,t=1.072、P=0.034)。结论幽门螺杆菌感染对慢性荨麻疹患者外周血单个核细胞产生IFN-γ和IL-4具有调控作用,可以导致Th细胞亚群失衡,进而导致患者免疫功能异常程度加重。     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

The relationship between CD4-CD8-T cells in the peripheral blood of patients with pancreatic carcinoma and IL-4,IFN-γ levels

Objective To investigate the relationship between CD4-CD8-T cells ratio and IL-4, IFN-γ levels in the peripheral blood of patients with pancreatic carcinoma. Methods Floweytometer was used to analyze the CD4-CD8-T cells ratio in the peripheral blood of patients with pancreatic carcinoma and the IL-4 ,IFN-γ levels were detected by ELISA. Results The ratio of CD4-CD8-T cell in CD3+ T cell from 25 pancreatic carcinoma patients was(4.2 ± 1.7) %, the ratio of CD4-CD8-T cell in CD3+T cell from 45 healthy person was(6.3 ± 2.6) %, there was significant deviation between the two groups(P ＜ 0. 01). The IL-4 level of 25 pancreatic carcinoma patients was (86.3 ± 23.3) fg/L,the IL-4 level of 45 healthy person was (56.2 ± 9.2) fg/L,there was significant deviation between the two groups(P ＜0.01). The IFN-γ level of 25 pancreatic carcinoma patients was (16.4±4.8) fg/L before operation, the IFN-γ level of 45 healthy person was (27.4±3.8) fg/L,there was significant deviation between the two groups(P ＜0.01). The ratio of CD4-CD8-T cell in pancreatic carcinoma patient after operation was higher than before operation. It could be found negative correlation between CD4-CD8-T cells ratio and IL-4 level in pancreatic carcinoma patient,it could also be found positive correlation between CD4-CD8-T cells ratio and IFN-γ level in pancreatic carcinoma patient. In pancreatic carcinoma patient,the CD4-CD8-T cells ratio and IL-4 level was significant associated with clinical stage (P ＜ 0.05), but no relationship with hisological differentiation (P＞0.05), it could be found no relationship between IFN-γ level and clinical stage, hisoiogieal differentiation (P ＞ 0.05). Conclusion The CD4±CD8±T cells ratio in the peripheral blood of patients is decreased,it may be participate in the carcinogenesis and development of pancreatic carcinoma by influence the IFN-γ levels.     

树突状细胞疫苗对胃癌术后患者外周血白细胞介素12水平及Th1/Th2平衡的影响

目的探讨胃癌患者术后应用树突状细胞(dendritic cells,DCs)疫苗治疗后机体免疫功能的变化.方法采用外周血单个核细胞及自体肿瘤抗原在体外制备DCs疫苗.采用临床随机对照研究将50例胃癌患者分为2组,常规治疗组在胃癌术后予以化疗,疫苗治疗组术后化疗2周后开始进行DCs疫苗皮下注射,共注射4次.在治疗前后相应各时相点采取患者外周血检测白细胞介素12(IL-12)、IL-4及干扰素γ(IFN-γ)的水平.结果疫苗治疗组患者DCs注射前及注射后2周、4周和8周的外周血IL-12的水平分别为(37±4)pg/ml、(68±6)pg/ml、(96±12)pg/ml和(59±9)pg/ml;IFN-γ的水平分别为(61±12)pg/ml、(134±19)pg/ml、(145±20)pg/ml和(111±15)pg/ml;IL-4的水平分别为(55±7)pg/ml、(49±6)pg/ml、(46±5)pg/ml和(50±8)pg/ml.而常规治疗组患者外周血IL-12、IFN-γ及IL-4的水平分别为(39±7)pg/ml、(45±9)pg/ml、(44±10)pg/ml、(44±6)pg/ml;(63±10)pg/ml、(61±13)pg/ml、(62±11)pg/ml、(61±7)pg/ml;(52±11)pg/ml、(55±9)pg/ml、(53±10)pg/ml、(55±8)pg/ml.疫苗治疗组患者外周血IL-12及IFN-γ水平在疫苗治疗后明显提高,与同期正常对照组相比差异有显著意义(P<0.05).结论 DCs疫苗可提高胃癌患者术后外周血IL-12的水平,并促进 T 细胞向Th1方向发展,临床应用无明显不良反应.     

淋巴细胞免疫治疗对不明原因复发性流产患者外周血T细胞的影响

目的探讨淋巴细胞免疫治疗(LIT)对不明原因复发性流产(uRM)患者外周血T淋巴细胞比例和功能的影响。方法对94例uRM患者进行3次LIT治疗,治疗前后均在其黄体中期采集外周血,并采用流式细胞术检测其外周血T淋巴细胞亚群比例和Th1/Th2型细胞因子。结果 94例患者中26例失访,7例生化妊娠,2例异位妊娠,48例成功分娩,11例再次自然流产。所有患者3次LIT治疗后与治疗前比较,外周血CD3+T淋巴细胞占淋巴细胞的比例、CD3+CD4+CD8-T细胞和CD3+CD4-CD8+T细胞分别占CD3+T细胞的比例,以及产生γ干扰素(IFN-γ)的Th1细胞占Th细胞比例均无显著性差异(P0.05);而产生肿瘤坏死因子α(TNF-α)的Th1细胞占Th细胞的比例、IFN-γ/白细胞介素-10(IL-10)比值和TNF-α/IL-10比值在治疗后均显著性降低(P0.05)。进一步研究显示,LIT治疗前后成功妊娠患者和再次流产患者的T细胞亚群均无显著性变化(P0.05);Th1/Th2比值在成功妊娠患者中显著下降(P0.001),而再次流产患者中并无显著性变化(P0.05)。结论 LIT改变uRM患者外周血T细胞的功能,降低Th1/Th2比值,使患者趋于以Th2为主的免疫状态而有利于成功妊娠。     

他克莫司体外诱导狼疮性肾炎患者耐受性树突状细胞形成

目的:观察他克莫司(tacrolimus)处理前后狼疮性肾炎(LN)患者外周血树突状细胞(dendriticcells,DCs)表面标志及功能的改变。方法:分离LN患者外周血单个核细胞,用GM-CSF、IL-4等细胞因子诱导DCs成熟,他克莫司组在加入上述细胞因子前先加入他克莫司(5μg/ml)培养。培养第9d收集DCs细胞,流式细胞仪检测CD80、CD86和HLA-DR的表达。MTT法检测DCs刺激淋巴细胞增殖能力,ELISA法检测混合淋巴细胞反应培养上清IL-10和IFN-γ水平。结果:他克莫司处理后的DCs表达CD80、CD86和HLA-DR百分数较对照组均明显降低(52.70±1.77vs78.36±4.80,63.50±14.06vs83.91±9.81,70.41±12.51vs90.51±8.63),P均<0.01;他克莫司处理后的DCs与T细胞混合培养,其刺激T细胞增殖相应的OD值明显降低(DC∶TC=1∶10时,0.294±0.094vs0.582±0.123;DC∶TC=1∶50时,0.325±0.099vs0.458±0.080),P均<0.01。其混合培养的上清液中IL-10水平较无他克莫司处理的DCs与T细胞的混合培养上清液明显降低[(195.0±36.9)pg/mlvs(423.6±93.2)pg/ml,P<0.01],而IFN-γ两者间无统计学意义[(88.2±11.6)pg/mlvs(86.9±12.7)pg/ml,P>0.05]。结论:他克莫司在体外可抑制LN患者外周血DCs的成熟,且他克莫司处理后的DCs能明显抑制T细胞增殖及T细胞向Th2细胞转化。     

丙泊酚对肺癌患者外周血IL-12、IFN-γ及IL-4的影响

目的探讨丙泊酚对肺癌患者外周血细胞因子白细胞介素(IL)-12、γ-干扰素(IFN-γ)、IL-4的影响。方法30例行非小细胞型肺癌肺叶切除术患者随机分为丙泊酚(IV)组和异氟醚(IH)组,每组15例。分别于麻醉诱导前(T0)、麻醉诱导后10min(T1)、切皮后1h(T2)、停药即刻(T3)、术后1h(T4)及术后24h(T5)采集肘静脉血,测定血清IL-12、IFN-γ、IL-4及皮质醇(Cor)浓度。结果与T0时比较,IV组T5时IL-12、IFN-γ/IL-4及T4、T5时IFN-γ明显增高(P<0.05或P<0.01);且T5时IL-12、IFN-γ/IL-4及T4、T5时IFN-γ均高于IH组(P<0.05)。两组IL-4均有增高趋势,但组内、组间差异无显著意义。与T4时相比,T5时IV组IFN-γ、IFN-γ/IL-4增高明显(P<0.05)。结论丙泊酚可以促进外周血IL-12、IFN-γ的分泌,升高IFN-γ/IL-4比值,诱导围术期Ⅰ型辅助性淋巴细胞(Th1)反应,有利于抗肿瘤、抗感染免疫。     

肺炎支原体肺炎患儿支气管肺泡灌洗液白细胞介素-4、白细胞介素-6、干扰素-γ水平与病情和肺功能的关系

目的:分析肺炎支原体肺炎(MPP)患儿支气管肺泡灌洗液(BALF)中白细胞介素-4(IL-4)、白细胞介素-6(IL-6)、干扰素-γ(IFN-γ)水平与病情和肺功能的关系。方法:选取徐州市儿童医院2019年5月至2020年10月收治的109例MPP患儿(研究组)和102例急性支气管异物患儿(对照组),均实施支气管肺泡灌洗术。研究组MPP患儿根据病情分为轻症组(85例)和重症组(24例),并根据患儿肺功能损伤程度分为肺功能正常组(26例)、轻度损伤组(32例)、中度损伤组(30例)和重度损伤组(21例)。取入组患儿BALF,采用酶联免疫吸附试验(ELISA)检测IL-4、IL-6、IFN-γ水平并进行比较;比较研究组不同病情、不同肺功能损伤患儿BALF中IL-4、IL-6和IFN-γ水平:两组间比较采用成组设计资料t检验;多组间整体比较采用方差分析后组间两两比较采用LSD-t检验。应用Pearson相关分析研究组患儿BALF中IL-4、IL-6、IFN-γ水平与肺功能的关系。结果:研究组患儿BALF中IL-4、IL-6、IFN-γ水平均高于对照组[IL-4:(142.4±24.7)pg/ml vs.(73.2±13.0)pg/ml,t=25.159、P<0.001;IL-6:(56.4±10.3)pg/ml vs.(11.2±2.3)pg/ml,t=43.399、P<0.001;IFN-γ:(90.2±16.3)pg/ml vs.(41.8±6.8)pg/ml,t=27.857、P<0.001]。研究组中重症组患儿BALF中IL-4、IL-6、IFN-γ水平分别为(200.7±36.7)pg/ml、(103.3±16.8)pg/ml和(113.5±21.9)pg/ml,均显著高于轻症组[(125.9±22.4)pg/ml、(43.1±7.8)pg/ml和(83.6±14.1)pg/ml](IL-4:t=12.378、P<0.001,IL-6:t=25.010、P<0.001,IFN-γ:t=8.035、P<0.001),差异有统计学意义。研究组中肺功能正常组患儿BALF中IL-4、IL-6和IFN-γ水平分别为(81.6±15.5)pg/ml、(20.4±4.2)pg/ml和(74.7±11.9)pg/ml,轻度损伤者分别为(102.5±19.9)pg/ml、(48.9±8.2)pg/ml和(89.2±11.1)pg/ml,中度损伤者分别为(145.7±25.2)pg/ml、(60.2±10.2)pg/ml和(95.4±12.8)pg/ml,重度损伤者分别为(273.7±42.1)pg/ml、(106.9±17.6)pg/ml和(103.2±13.2)pg/ml。肺功能轻度、中度、重度损伤组患儿BALF中IL-4、IL-6和IFN-γ水平均高于肺功能正常组(P均<0.05),肺功能中度、重度损伤组患儿以上指标水平均高于肺功能轻度损伤组(P均<0.05),肺功能重度损伤患儿均高于肺功能中度损伤者(IL-4:t=13.581、P<0.001,IL-6:t=11.956、P<0.001,IFN-γ:t=2.117、P=0.039),差异均有统计学意义。研究组患儿BALF中IL-4、IL-6、IFN-γ水平与1秒用力呼气容积(FEV_(1))、用力肺活量(FVC)、呼气流量峰值(PEF)均呈负相关(IL-4与FEV_(1)、FEV_(1)/FVC、PEF相关性:r=-0.834、P=0.025,r=-0.810、P=0.009,r=-0.901、P=0.002;IL-6与FEV_(1)、FEV_(1)/FVC、PEF:r=-0.816、P=0.003,r=-0.795、P=0.012,r=-0.743、P=0.007;IFN-γ与FEV_(1)、FEV_(1)/FVC、PEF:r=-0.756、P=0.012,r=-0.738、P=0.010,r=-0.725、P=0.017)。结论:MPP患儿BALF中IL-4、IL-6和IFN-γ水平均偏高,且3个指标水平与病情、肺功能均有关。