SOX9 and malignant colon neoplasm: Moreover, PAF1 knockdown decreased the expression levels of the genes such as LGR5, ID1, ID3, CD44v9, CD133, BMI1, RNF43, EPHB2, SOX9, and ASCL2 (Fig. 2B and Supplementary Fig. 2A), which are critical for inducing colon cancer stemness and its markers [5, 16].