Objective：To detect the effects of Polyporus polysaccharide（PPS）,Bacillus Calmette-Guerin （BCG）,and their combination on the nuclear factor kappa B（NF-κB）signaling pathway associated-gene expression and invest...Objective：To detect the effects of Polyporus polysaccharide（PPS）,Bacillus Calmette-Guerin （BCG）,and their combination on the nuclear factor kappa B（NF-κB）signaling pathway associated-gene expression and investigate the molecular mechanisms of the toxic-reducing effect of PPS in coordination with BCG against bladder cancer.Methods：After T739 cells were treated with PPS,BCG and their combination, the changes in mRNA and protein expression of inhibitor of kappa B kinase beta（IKKβ）,NF-κB subunit p65 （NF-κB p65）,intracellular adhesion molecule 1（ICAM1）and chemokine（C-c motif）ligand 2（CCL2）in bladder cancer cell line T739 were determined by relative quantitative real-time PCR,Western blot,and flow cytometry （FCM）.NF-κB p65 DNA-binding activity in T739 cell was detected by biotinylated probe-ELISA,and NF-κB p65 nuclear expression in T739 cell was observed by immunohistochemistry.Results：Compared with the T739 control group,the mRNA expression of IKBKB（IKKβ）,Rel A（NF-κB p65）,ICAM1 and CCL2 in T739 cells treated with BCG were increased obviously（Ratio2.0）,as well as the expression of IKKβ,CCL2 and ICAM1 proteins.Meanwhile,NF-κB p65 DNA-binding activity and NF-κB p65 nuclear expression in T739 cells treated with BCG were up-regulated significantly（P0.05）.Compared with the control,the increased expression in T739 cells were simultaneously down-regulated after PPS treatment,except for ICAM1 protein expression.With cells treated with a combination of BCG and PPS,the expression of genes associated with the NF-κB signaling pathway,such as IKBKB,ICAM1 and CCL2,were all down-regulated compared to the BCG group,as well as Rel A mRNA expression,NF-κB p65 DNA-binding activity and NF-κB p65 nuclear expression.Conclusions： PPS could inhibit the over-activation of the NF-κB signaling pathway induced by BCG in bladder cancer cells and accordingly attenuate the adverse reactions to BCG therapy.展开更多
To compare the effects of polysaccharide nucleic acid fraction of bacillus calmette guerin (BCG PSN) and thymopeptides on T lymphocytes of normal and immunosuppressed mice, CD4 + and CD8 + T lymphocyte subsets of...To compare the effects of polysaccharide nucleic acid fraction of bacillus calmette guerin (BCG PSN) and thymopeptides on T lymphocytes of normal and immunosuppressed mice, CD4 + and CD8 + T lymphocyte subsets of single nucleic cell in thymus, spleen and peripheral blood were detected successively by flow cytometry after application of BCG PSN and thymopeptides. Meanwhile, CD4 +/CD8 + ratio was also calculated. The results showed that both BCG PSN and thymopeptides could decrease the proportion of CD4 + CD8 + T lymphocyte subsets in the thymus, at the same time increase CD4 + T lymphocyte, CD8 +T lymphocyte proportion in the three tissues. The fluctuation in amplitude was greater in thymopeptides group than that in BCG PSN group. It is concluded that acting location of thymopeptides is in thymus, its stimulating action is stronger than that of BCG PSN, while BCG PSN not only accelerates the differentiation in thymus, but also has some direct stimulation to peripheral CD4 +T lymphocytes, and can maintain CD4 +/CD8 + ratio within normal range. So, BCG PSN is safer.展开更多
目的探讨卡介菌多糖核酸联合玉屏风颗粒治疗慢性荨麻疹的疗效及对血清中白细胞介素-2(IL-2)和白细胞介素-6(IL-6)的影响。方法将慢性荨麻疹患者90例采用随机数字表法随机分为治疗组和对照组,各45例。对照组口服地氯雷他定片,1片/次,1次/...目的探讨卡介菌多糖核酸联合玉屏风颗粒治疗慢性荨麻疹的疗效及对血清中白细胞介素-2(IL-2)和白细胞介素-6(IL-6)的影响。方法将慢性荨麻疹患者90例采用随机数字表法随机分为治疗组和对照组,各45例。对照组口服地氯雷他定片,1片/次,1次/天;卡介菌多糖核酸注射液,肌内注射,每次1 m L,2~3次/周。治疗组采取卡介菌多糖核酸注射液,肌内注射,每次1 m L,2~3次/周;玉屏风颗粒,开水冲服,每次5 g,3次/天。两组患者连续治疗8周。比较两组患者的症状评分、临床疗效及复发率。检测两组血清IL-2及IL-6水平。结果治疗组治疗后患者的瘙痒程度、风团数目、风团持续时间、每日风团发作次数及风团最大直径评分显著低于对照组同期(P<0.01)。治疗组患者的愈显率为91.11%,显著高于对照组为71.11%(P<0.05)。治疗组复发率13.33%,明显低于对照组复发率33.33%(P<0.05)。治疗组治疗后患者血清中IL-2及IL-6水平明显高于对照组同期,差异有统计学意义(P<0.01)。结论卡介菌多糖核酸联合玉屏风颗粒治疗慢性荨麻疹的疗效明显,上调患者血清中IL-2及IL-6水平可能是其作用机制之一。展开更多
基金Supported by National Natural Science Foundation of China (No.30873426)Ministry of Education Doctoral Research(No. 200805720010)Research Project of Guangdong Traditional Chinese Medicine Bureau(No.2009191)
文摘Objective：To detect the effects of Polyporus polysaccharide（PPS）,Bacillus Calmette-Guerin （BCG）,and their combination on the nuclear factor kappa B（NF-κB）signaling pathway associated-gene expression and investigate the molecular mechanisms of the toxic-reducing effect of PPS in coordination with BCG against bladder cancer.Methods：After T739 cells were treated with PPS,BCG and their combination, the changes in mRNA and protein expression of inhibitor of kappa B kinase beta（IKKβ）,NF-κB subunit p65 （NF-κB p65）,intracellular adhesion molecule 1（ICAM1）and chemokine（C-c motif）ligand 2（CCL2）in bladder cancer cell line T739 were determined by relative quantitative real-time PCR,Western blot,and flow cytometry （FCM）.NF-κB p65 DNA-binding activity in T739 cell was detected by biotinylated probe-ELISA,and NF-κB p65 nuclear expression in T739 cell was observed by immunohistochemistry.Results：Compared with the T739 control group,the mRNA expression of IKBKB（IKKβ）,Rel A（NF-κB p65）,ICAM1 and CCL2 in T739 cells treated with BCG were increased obviously（Ratio2.0）,as well as the expression of IKKβ,CCL2 and ICAM1 proteins.Meanwhile,NF-κB p65 DNA-binding activity and NF-κB p65 nuclear expression in T739 cells treated with BCG were up-regulated significantly（P0.05）.Compared with the control,the increased expression in T739 cells were simultaneously down-regulated after PPS treatment,except for ICAM1 protein expression.With cells treated with a combination of BCG and PPS,the expression of genes associated with the NF-κB signaling pathway,such as IKBKB,ICAM1 and CCL2,were all down-regulated compared to the BCG group,as well as Rel A mRNA expression,NF-κB p65 DNA-binding activity and NF-κB p65 nuclear expression.Conclusions： PPS could inhibit the over-activation of the NF-κB signaling pathway induced by BCG in bladder cancer cells and accordingly attenuate the adverse reactions to BCG therapy.
文摘To compare the effects of polysaccharide nucleic acid fraction of bacillus calmette guerin (BCG PSN) and thymopeptides on T lymphocytes of normal and immunosuppressed mice, CD4 + and CD8 + T lymphocyte subsets of single nucleic cell in thymus, spleen and peripheral blood were detected successively by flow cytometry after application of BCG PSN and thymopeptides. Meanwhile, CD4 +/CD8 + ratio was also calculated. The results showed that both BCG PSN and thymopeptides could decrease the proportion of CD4 + CD8 + T lymphocyte subsets in the thymus, at the same time increase CD4 + T lymphocyte, CD8 +T lymphocyte proportion in the three tissues. The fluctuation in amplitude was greater in thymopeptides group than that in BCG PSN group. It is concluded that acting location of thymopeptides is in thymus, its stimulating action is stronger than that of BCG PSN, while BCG PSN not only accelerates the differentiation in thymus, but also has some direct stimulation to peripheral CD4 +T lymphocytes, and can maintain CD4 +/CD8 + ratio within normal range. So, BCG PSN is safer.
文摘目的探讨卡介菌多糖核酸联合玉屏风颗粒治疗慢性荨麻疹的疗效及对血清中白细胞介素-2(IL-2)和白细胞介素-6(IL-6)的影响。方法将慢性荨麻疹患者90例采用随机数字表法随机分为治疗组和对照组,各45例。对照组口服地氯雷他定片,1片/次,1次/天;卡介菌多糖核酸注射液,肌内注射,每次1 m L,2~3次/周。治疗组采取卡介菌多糖核酸注射液,肌内注射,每次1 m L,2~3次/周;玉屏风颗粒,开水冲服,每次5 g,3次/天。两组患者连续治疗8周。比较两组患者的症状评分、临床疗效及复发率。检测两组血清IL-2及IL-6水平。结果治疗组治疗后患者的瘙痒程度、风团数目、风团持续时间、每日风团发作次数及风团最大直径评分显著低于对照组同期(P<0.01)。治疗组患者的愈显率为91.11%,显著高于对照组为71.11%(P<0.05)。治疗组复发率13.33%,明显低于对照组复发率33.33%(P<0.05)。治疗组治疗后患者血清中IL-2及IL-6水平明显高于对照组同期,差异有统计学意义(P<0.01)。结论卡介菌多糖核酸联合玉屏风颗粒治疗慢性荨麻疹的疗效明显,上调患者血清中IL-2及IL-6水平可能是其作用机制之一。
