目的探讨MIB1、RPS6KA1基因甲基化表达状态通过ERK信号通路对激素抵抗型哮喘的影响;方法病例组为确诊激素抵抗型哮喘者20例,病例对照组为确诊支气管哮喘并明确得到有效控制者20例,正常对照组为健康体检者20例,利用Sequenom Mass ARRAY...目的探讨MIB1、RPS6KA1基因甲基化表达状态通过ERK信号通路对激素抵抗型哮喘的影响;方法病例组为确诊激素抵抗型哮喘者20例,病例对照组为确诊支气管哮喘并明确得到有效控制者20例,正常对照组为健康体检者20例,利用Sequenom Mass ARRAY方法检测基因甲基化表达状态,用SPSS22.0统计软件进行分析;结果本研究共检测RPS6KA1有4个CpG位点、MIB1基因有3个CpG位点,其中RPS6KA1基因低表达,其中CpG1,CpG2,CpG3在病例组与病例对照组、正常对照组间比较差异有统计学意义(P <0.05),而MIB1基因甲基化表达水平在三组比较差异均无统计学意义(P>0.05)。结论 RPS6KA1基因低表达可能通过影响ERK信号通路而在SRA中起作用。展开更多
Objective Tumors with accelerated growth or high malignancy are thought to undergo active angio- genesis. Whereas by far, there is few study concerning the combination of MIB-1 proliferation index (MIB-1 PI) and tumor...Objective Tumors with accelerated growth or high malignancy are thought to undergo active angio- genesis. Whereas by far, there is few study concerning the combination of MIB-1 proliferation index (MIB-1 PI) and tumor angiogenesis in carcinomas to show their significance in relate to clinicopathological parameters. In the present study, we evaluated the significance or MIB-1 PI and angiogenesis in early stage of gastric cancer. Our focus was es- pecially on the combination of MIB-1 PI and angiogenesis in relate to lymph node metastasis. Method Specimens from 95 patients with early gastric cancer were studied by means or immunohistochemistry using monoclonal MIB-1 and factor Ⅷ related antigen antibodies. Results The mean MIB-1 PI and microvessel count were 22.9% and 34.7, respectively. The MIB-1 PI did not correlate with microvessel count. Both correlated with depth of tumor invasion, lymphatic vessel invasion and lymph node metastasis. Multivarlate analysis showed that combined high MIB-1 PI/hy- pervascularity, as well as lymphatic vessel invasion and tumor size were independent factors that impact on lymph node metastasis. Conclusion A combination of the high MIB-1 PI/hypervascularity is a factor that related to lymph node metastasis in early gastric cancer.展开更多
文摘目的探讨MIB1、RPS6KA1基因甲基化表达状态通过ERK信号通路对激素抵抗型哮喘的影响;方法病例组为确诊激素抵抗型哮喘者20例,病例对照组为确诊支气管哮喘并明确得到有效控制者20例,正常对照组为健康体检者20例,利用Sequenom Mass ARRAY方法检测基因甲基化表达状态,用SPSS22.0统计软件进行分析;结果本研究共检测RPS6KA1有4个CpG位点、MIB1基因有3个CpG位点,其中RPS6KA1基因低表达,其中CpG1,CpG2,CpG3在病例组与病例对照组、正常对照组间比较差异有统计学意义(P <0.05),而MIB1基因甲基化表达水平在三组比较差异均无统计学意义(P>0.05)。结论 RPS6KA1基因低表达可能通过影响ERK信号通路而在SRA中起作用。
文摘Objective Tumors with accelerated growth or high malignancy are thought to undergo active angio- genesis. Whereas by far, there is few study concerning the combination of MIB-1 proliferation index (MIB-1 PI) and tumor angiogenesis in carcinomas to show their significance in relate to clinicopathological parameters. In the present study, we evaluated the significance or MIB-1 PI and angiogenesis in early stage of gastric cancer. Our focus was es- pecially on the combination of MIB-1 PI and angiogenesis in relate to lymph node metastasis. Method Specimens from 95 patients with early gastric cancer were studied by means or immunohistochemistry using monoclonal MIB-1 and factor Ⅷ related antigen antibodies. Results The mean MIB-1 PI and microvessel count were 22.9% and 34.7, respectively. The MIB-1 PI did not correlate with microvessel count. Both correlated with depth of tumor invasion, lymphatic vessel invasion and lymph node metastasis. Multivarlate analysis showed that combined high MIB-1 PI/hy- pervascularity, as well as lymphatic vessel invasion and tumor size were independent factors that impact on lymph node metastasis. Conclusion A combination of the high MIB-1 PI/hypervascularity is a factor that related to lymph node metastasis in early gastric cancer.
