KRT6A and urinary bladder carcinoma: Interestingly, in the basal-type subgroup of bladder cancers with SCC features (BASQ), an inversely ITIH5 expression with basal-type markers such as KRT6A has been confirmed, whereas a strong positive correlation of remained (low) ITIH5 expression with (low) expression of luminal-type markers like KRT20 was present (Figure 1B), i.e., in tumors where substantially basal-type markers are predominant, a close association between ITIH5 and luminal-type markers could be still observed on mRNA level.