It could promote the migration of pancreatic cancer cells by targetingTable 2. Univariate and Multivariate Analyses of Different Prognostic Parameters on Breast Cancer Disease-free Survival Rates.Univariate analyses P Age Menopause Histological grade T-stage N-stage ER status PR status Her-2 status miR-27a ZBTB10 0.893 0.915 0.745 0.000 0.016 0.935 0.333 0.055 0.001 0.000 Regression coefficient (SE) 20.05 (0.371) 0.048(0.449) 0.095 (0.291) 1.151(0.292) 0.497(0.207) 20.038(0.463) 0.72(0.744) 0.84(0.437) 1.728(0.513) 21.846(0.485)Multivariate analyses P Relative risk 95 Confidence interval0.3.1.653?.0.054 0.012 0.025 0.4.778 3.373 3.573 0.0.973?3.478 1.300?.750 1.176?0.860 0.089?.(SE) standard error; multivariate analysis; Cox ITI 007 site proportional hazard regression model, stepwise forward LR. doi:10.1371/journal.pone.0051702.tMiR-27a as a Predictor of Invasive Breast CancerTable 3. Univariate and Multivariate Analyses of Overall Survival Rates in Patients with Breast Cancers by Cox-Regression Analysis.Univariate analyses P Age Menopause Histological grade T-stage N-stage ER status PR status Her-2 status miR-27a ZBTB10 0.851 0.872 0.721 0.000 0.016 0.958 0.358 0.028 0.001 0.000 Regression coefficient (SE) 20.068 (0.361) 0.072(0.45) 0.104(0.292) 1.2(0.293) 0.494(0.204) 20.024(0.463) 0.684(0.744) 0.977(0.443) 1.739(0.513) 21.774(0.484)Multivariate analyses P Relative risk 95 Confidence interval0.3.1.645?.0.4.1.665?2.(SE) standard error; multivariate analysis; Cox proportional hazard regression model, stepwise forward LR. doi:10.1371/journal.pone.0051702.tSprouty2 [28] and increase endothelial cell sprouting by regulating the expression of the angiogenesis inhibitor semaphorin 6A (SEMA6A) [29]. In addition, 15481974 miR-27a plays an important role in mediating drug resistance by targeting Lecirelin biological activity multiple drug-resistance related genes. MiR-27a modulated MDR1/P-glycoprotein expression in human ovarian cancer cells by targeting HIPK2 [15] and could reverse the multidrug resistance of esophageal squamous cell carcinoma through regulation of MDR1 and apoptosis [14]. This study focused on the potential relationship between the expression level of miR-27a and various clinicopathological characteristics of breast cancer patients, as well as disease-free survival and overall survival. It is worth noting that high levels of miR-27a appear to be significantly correlated with tumor size, lymph node metastases, distant metastasis and poor prognosis in patients with breast cancer. MiR-27a was up-regulated in patients presenting with metastases, suggesting that its up-regulation was acquired in the course of tumor progression and, in particular, during the acquisition of metastatic potential. Our results showed that miR-27a and ZBTB10 expression were not correlated with receptor status. On the contrary, it was reported that miR-27a indirectly regulates estrogen receptora expression and hormone responsiveness in MCF-7 breast cancer cells through the suppression of ZBTB10 [30]. To understand these conflicting results, the difference between clinical observation and in vitro experiments should be considered. After dividing the patients by the cut-off method, a multivariate Cox proportional hazard regression analysis revealed that miR-27a overexpression had a significantly worse prognostic impact (P = 0.003) on the overall survival of breast cancer patients independent of tumor size (P = 0.000). These results indicate that, as an independent risk factor, miR-27a could serve as a pr.It could promote the migration of pancreatic cancer cells by targetingTable 2. Univariate and Multivariate Analyses of Different Prognostic Parameters on Breast Cancer Disease-free Survival Rates.Univariate analyses P Age Menopause Histological grade T-stage N-stage ER status PR status Her-2 status miR-27a ZBTB10 0.893 0.915 0.745 0.000 0.016 0.935 0.333 0.055 0.001 0.000 Regression coefficient (SE) 20.05 (0.371) 0.048(0.449) 0.095 (0.291) 1.151(0.292) 0.497(0.207) 20.038(0.463) 0.72(0.744) 0.84(0.437) 1.728(0.513) 21.846(0.485)Multivariate analyses P Relative risk 95 Confidence interval0.3.1.653?.0.054 0.012 0.025 0.4.778 3.373 3.573 0.0.973?3.478 1.300?.750 1.176?0.860 0.089?.(SE) standard error; multivariate analysis; Cox proportional hazard regression model, stepwise forward LR. doi:10.1371/journal.pone.0051702.tMiR-27a as a Predictor of Invasive Breast CancerTable 3. Univariate and Multivariate Analyses of Overall Survival Rates in Patients with Breast Cancers by Cox-Regression Analysis.Univariate analyses P Age Menopause Histological grade T-stage N-stage ER status PR status Her-2 status miR-27a ZBTB10 0.851 0.872 0.721 0.000 0.016 0.958 0.358 0.028 0.001 0.000 Regression coefficient (SE) 20.068 (0.361) 0.072(0.45) 0.104(0.292) 1.2(0.293) 0.494(0.204) 20.024(0.463) 0.684(0.744) 0.977(0.443) 1.739(0.513) 21.774(0.484)Multivariate analyses P Relative risk 95 Confidence interval0.3.1.645?.0.4.1.665?2.(SE) standard error; multivariate analysis; Cox proportional hazard regression model, stepwise forward LR. doi:10.1371/journal.pone.0051702.tSprouty2 [28] and increase endothelial cell sprouting by regulating the expression of the angiogenesis inhibitor semaphorin 6A (SEMA6A) [29]. In addition, 15481974 miR-27a plays an important role in mediating drug resistance by targeting multiple drug-resistance related genes. MiR-27a modulated MDR1/P-glycoprotein expression in human ovarian cancer cells by targeting HIPK2 [15] and could reverse the multidrug resistance of esophageal squamous cell carcinoma through regulation of MDR1 and apoptosis [14]. This study focused on the potential relationship between the expression level of miR-27a and various clinicopathological characteristics of breast cancer patients, as well as disease-free survival and overall survival. It is worth noting that high levels of miR-27a appear to be significantly correlated with tumor size, lymph node metastases, distant metastasis and poor prognosis in patients with breast cancer. MiR-27a was up-regulated in patients presenting with metastases, suggesting that its up-regulation was acquired in the course of tumor progression and, in particular, during the acquisition of metastatic potential. Our results showed that miR-27a and ZBTB10 expression were not correlated with receptor status. On the contrary, it was reported that miR-27a indirectly regulates estrogen receptora expression and hormone responsiveness in MCF-7 breast cancer cells through the suppression of ZBTB10 [30]. To understand these conflicting results, the difference between clinical observation and in vitro experiments should be considered. After dividing the patients by the cut-off method, a multivariate Cox proportional hazard regression analysis revealed that miR-27a overexpression had a significantly worse prognostic impact (P = 0.003) on the overall survival of breast cancer patients independent of tumor size (P = 0.000). These results indicate that, as an independent risk factor, miR-27a could serve as a pr.
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