MALAT1 and clear cell renal carcinoma: To determine whether MALAT1 was involved in the tumorigenesis or development of KIRC, we firstly examined the expression of MALAT1 in TCGA Data Portal from starBASE v2.0 (http://starbase.sysu.edu.cn/panCancer.php) and found MALAT1 exist higher expression in tumor than in normal in Chromophobe renal cell carcinoma (KICH) and clear cell kidney carcinoma (KIRC) (Figure 1A).