Potential biomarkers for various cancers have been reported including microRNA for lung cancer prediction and development [5, 11], plasma small ncRNA for early-stage lung adenocarcinoma screening [12], lipid species and seven-gene CpG-island methylation panel for breast cancer diagnosis [13, 14], snail protein for gastric cancer [15], genes and pathways for kidney renal clear cell carcinoma [16], circulatory MALAT1 as a prognostic biomarker for hepatocellular carcinoma [17], and lncRNAs as a breast cancer diagnostic biomarkers for breast cancer [18]. Here, SNAI1 is linked to breast cancer.