001). (B and C) Kaplan-Meier analysis showing the overall #NCT-501 randurls[1|1|,|CHEM1|]# survival of glioma patients categorized according to the WHO grading criteria and status of CLIC1 expression. The cumulative 5-year overall survival was significantly different between high CLIC1 expression and low CLIC1 expression patients within
subgroups of WHO Grades I~II (B, P=0.01) and III~IV (C, P=0.008). Nextly, the univariate analysis of individual variables revealed strong relationships between overall survival and WHO grade (P< 0.001), and CLIC1 expression (P<0.001). Additionally, the multivariate analysis identified CLIC1 expression (HR, 4.66; 95% CI, 2.31–10.29; P=0.01) and WHO grade (HR, 6.97; 95% CI, 2.12–12.46; P=0.008) as significant prognostic factors for glioma (Table 3). Table 3 Cox multivariate analysis Parameter Risk ratio 95% confidence interval P Age 0.89 0.58–1.65 0.71 Gender 1.02 0.66–1.83 0.33 WHO grade 6.97 2.12–12.46 0.008 KPS 1.99 1.28–2.95 0.06 Extent of resection 1.29 0.89–2.13 0.11 Type of adjuvant treatment 1.37 1.02–2.24 0.11 CCL20 expression 4.66 2.31–10.29 0.01 Furthermore, we evaluated TSA HDAC price the prognostic significance of CLIC1 protein expression levels in different subgroups of glioma patients stratified according to the WHO grading. Notably, high CLIC1 expression also significantly correlated with shorter overall survival time in different glioma subgroups.
Overall survival of glioma
patients with high CLIC1 expression was significantly decreased than those with low CLIC1 expression in either Grades I~II subgroup (n=32; P=0.01; Figure 3B) or Grades III~IV subgroup (n=96; P=0.008; Figure 3C). Discussion Similar with other human solid tumor cells, the glioma cells do not only have limitless replicative potential but also readily invade surrounding brain tissues and metastasize to other tissues, which make complete surgical resection practically impossible and lead to poor prognosis. Therefore, molecules involved in the aggressive process are potential prognostic and therapeutic markers. In the present study, our data shown for the first Selleck Rucaparib time that the up-regulation of CLIC1 at both mRNA and protein levels in glioma tissues compared with its expression in non-neoplastic brain tissues. Additionally, highly CLIC1 protein expression was significantly correlated with advanced WHO stage and low KPS scores, suggesting that this protein might be of clinical relevance in the aggressiveness of gliomas. Together with these findings, we also demonstrated that CLIC1 expression was a statistically significant risk factor affecting overall survival of patients with glioma and was an independent risk factor predicting short overall survival. As a member of the CLIC family, CLIC1 functions as a real chloride channel in plasma and nuclear membranes .