Y‑box‑binding protein�1 inhibits apoptosis and upregulates EGFR in colon cancer

Y‑box‑binding protein 1 (YB‑1) is a DNA/RNA‑-binding protein and an important transcription and translation factor in carcinogenesis. However, the biological function and molecular correlation of YB‑1 in colorectal cancer are not fully understood. The aim of the present study was to determine the significance of YB‑1 expression and its biological role in colorectal cancer. Cell proliferation, migration and apoptosis were examined upon knockdown of YB‑1 expression in different colon cancer cell lines that had different genetic backgrounds. Since the properties of different colon cancer cell lines with specific RAS/RAF gene mutations downstream epidermal growth factor receptor (EGFR) may differ from wild‑type colorectal cancer, it is critical to study the role of YB‑1 with respect to the mutational status of RAS. The results indicated that the suppression of YB‑1 decreased cell proliferation (P