子宫颈病变组织中Stat5表达及其与疾病进展的关系

目的探讨信号转导和转录活化因子5(signal transducer and activator of transcription 5,Stat5)在子宫颈病变组织中的表达及与子宫颈病变程度的相关性。方法以正常子宫颈组织、低度鳞状上皮内病变(low-grade squamous intraepithelial lesions,LSIL)、高度鳞状上皮内病变(high-grade squamous intraepithelial lesions,HSIL)、子宫颈癌组织为研究对象。采用免疫组化法检测不同程度的子宫颈病变组织中Stat5a、Stat5b以及磷酸化Stat5(p Stat5)的表达。结果 Stat5a和Stat5b在LSIL组织中的表达与正常组织相比差异无显著性,但其表达水平随子宫颈病变的进展程度而升高(P <0. 01)。在子宫颈正常组织、LSIL、HSIL、子宫颈癌各组中Stat5a、Stat5b高表达所占比例分别为15. 0%(3/20)、12. 0%(3/25)、72. 0%(18/25)、100%(20/20)和15. 8%(3/19)、0(0/25)、56. 0%(14/25)、88. 9%(16/18);p Stat5表达随子宫颈病变的进展程度而降低(P <0. 01)。在子宫颈正常组织、LSIL、HSIL、子宫颈癌各组中p Stat5高表达所占比例分别为94. 7%(18/19)、84. 7%(22/26)、23. 1%(6/26)、0(0/19)。结论子宫颈病变程度不同的组织中,Stat5蛋白表达和磷酸化水平差异有显著性,提示Stat5可能与子宫颈病变的进展有关。

Effects of Acupuncture and Moxibustion on Immunologic Suppression in Tumor-bearing Mice

Objective：To observe the effects of electroacupuncture （EA） and moxibustion on the immunologic suppression in tumor.Methods：Forty-eight male Balb/c mice were randomly allocated into an EA group,a moxibustion group,a tumor-bearing group,and a normal group,12 mice in each group.After tumor models were made,mice in the EA and moxibustion groups were treated with EA and moxibustion at Dazhui （GV 14） respectively.Survival rate,tumor inhibited rate,spleen index,and thymus gland index were observed after 6 treatments.The proliferation of spleen lymphocyte of mice stimulated by ConA was measured with AlamarBlue method,and the expression of Foxp3 mRNA,Stat5a mRNA,and Stat5b mRNA of spleen lymphocyte,and Foxp3 mRNA thymus gland lymphocyte were tested with RT-PCR.Results：The survival rate of mice in the moxibustion group was higher than that in the tumor-bearing group without statistic difference.Spleen indexes of mice in the EA group and moxibustion group was higher than that in the tumor-bearing group （P0.05）.Thymus gland indexes of mice in the EA group and moxibustion group were higher than that in the tumor-bearing group without statistic difference.Reducing values of proliferation of spleen lymphocyte of mice in the EA,moxibustion,and tumor-bearing groups were higher than that in the normal group （P0.05）,and the value in the moxibustion group was higher than that in the tumor-bearing group （P0.05）.Expression of Foxp3 mRNA,Stat5a mRNA,and Stat5b mRNA of spleen lymphocyte were up-regulated in the tumor-bearing mice higher than that in the normal mice （P0.05）.The expressions of Foxp3 mRNA,Stat5a mRNA and Stat5b mRNA of the spleen lymphocyte were down-regulated in the EA and moxibustion groups more than that in the tumor-bearing group （P0.05）;the expression of Foxp3 mRNA was higher in thymus gland of tumor-bearing mice than that of the normal mice （P0.05）.Expression of Foxp3 mRNA in thymus gland of mice in the moxibustion group is lower than that in the tumor-bearing group （P0.05）.Expression of Foxp3 mRNA in thymus gland of mice in the EA group was lower than that in the tumor-bearing group without statistic difference.Conclusion：EA and moxibustion could enhance the spleen index and the proliferation of spleen lymphocyte of tumor-bearing mice.The effect of acupuncture-moxibustion therapy on tumor immunologic suppression may be related to the down-regulation of expression of Foxp3 mRNA,Stat5a mRNA,and Stat5b mRNA of the spleen lymphocyte,and Foxp3 mRNA thymus gland lymphocyte.