TRIM28 and colorectal carcinoma: The tissue-compartment protein expression ratio method developed for reciprocal tumor microenvironment assessment [34], allowed us to divide the 19-case CRC cohort in 2 groups; the TRIM28 high epithelium: stroma ratio group, which is mainly characterized by low levels of TRIM28 in tumor stroma (Fig. 1a) and the low epithelium: stroma ratio group, which shows more similar TRIM28 expression levels in both, epithelial and stromal compartments (Fig. 1b).