Xin-Feng Zhang1, Ting Liu2, Yang Li1, Su Li2. 1. Department of Breast Surgery, Liaoning Cancer Hospital and Institute Shenyang 110042, China. 2. Department of Radiology, First Affiliated Hospital, China Medical University Shenyang 110001, China.
Abstract
INTRODUCTION: Recent studies have demonstrated that lncRNA CCAT1 was increased in many types of cancers and was involved in various cellular processes related to carcinogenesis. However, the clinical significance and prognostic value of lncRNA CCAT1 in breast cancer (BC) haven't been investigated. METHODS: Expression levels of lncRNA CCAT1 in 92 pairs of BC cancer tissues and adjacent normal tissues were detected by quantitative real-time PCR. In order to determine its prognostic value, overall survival and progression-free survival were evaluated using the Kaplan-Meier method, and multivariate analysis was performed using the Cox proportional hazard analysis. RESULTS: Expression levels of lncRNA CCAT1 in BC tissues were significantly higher than those in adjacent normal tissues. High expression of lncRNA CCAT1 was associated with differentiation grade, TNM stage, and lymph node metastases. Kaplan-Meier analysis with the log-rank test indicated that high expression of lncRNA CCAT1 had a decreased overall survival and progression-free survival. Multivariable analysis was further identified high expression of lncRNA CCAT1 as an independent prognosis factor for overall survival and progression-free survival. CONCLUSIONS: Our findings provided that the expression of lncRNA CCAT1 was up-regulated in BC and associated with overall survival as well as progression-free survival, suggesting that lncRNA CCAT1 could be a potential prognostic biomarker for BC progression.
INTRODUCTION: Recent studies have demonstrated that lncRNA CCAT1 was increased in many types of cancers and was involved in various cellular processes related to carcinogenesis. However, the clinical significance and prognostic value of lncRNA CCAT1 in breast cancer (BC) haven't been investigated. METHODS: Expression levels of lncRNA CCAT1 in 92 pairs of BC cancer tissues and adjacent normal tissues were detected by quantitative real-time PCR. In order to determine its prognostic value, overall survival and progression-free survival were evaluated using the Kaplan-Meier method, and multivariate analysis was performed using the Cox proportional hazard analysis. RESULTS: Expression levels of lncRNA CCAT1 in BC tissues were significantly higher than those in adjacent normal tissues. High expression of lncRNA CCAT1 was associated with differentiation grade, TNM stage, and lymph node metastases. Kaplan-Meier analysis with the log-rank test indicated that high expression of lncRNA CCAT1 had a decreased overall survival and progression-free survival. Multivariable analysis was further identified high expression of lncRNA CCAT1 as an independent prognosis factor for overall survival and progression-free survival. CONCLUSIONS: Our findings provided that the expression of lncRNA CCAT1 was up-regulated in BC and associated with overall survival as well as progression-free survival, suggesting that lncRNA CCAT1 could be a potential prognostic biomarker for BC progression.
Entities:
Keywords:
breast cancer; lncRNA CCAT1; prognosis; quantitative real-time PCR
Authors: Aviram Nissan; Alexander Stojadinovic; Stella Mitrani-Rosenbaum; David Halle; Ronit Grinbaum; Marina Roistacher; Andrea Bochem; Baris Emre Dayanc; Gerd Ritter; Ismail Gomceli; Erdal Birol Bostanci; Musa Akoglu; Yao-Tseng Chen; Lloyd John Old; Ali Osmay Gure Journal: Int J Cancer Date: 2011-08-02 Impact factor: 7.396
Authors: Rajnish A Gupta; Nilay Shah; Kevin C Wang; Jeewon Kim; Hugo M Horlings; David J Wong; Miao-Chih Tsai; Tiffany Hung; Pedram Argani; John L Rinn; Yulei Wang; Pius Brzoska; Benjamin Kong; Rui Li; Robert B West; Marc J van de Vijver; Saraswati Sukumar; Howard Y Chang Journal: Nature Date: 2010-04-15 Impact factor: 49.962