ITGA9 and cancer: Interestingly, the analysis of the FN-subgroup revealed a notable difference in the expression of ITGA9 between alive patients and those who were not cured (Fig. 3c), being this integrin alpha chain with lower levels in alive patients compared to dead patients, thereby pointing to a preponderant role of this integrin in the progression of cancer within this particular subset of patients (for more complete information see Supplementary Figs. 2, 3 and 4).