CBX7 and lung carcinoma: In fact, the loss of CBX7 expression has been recently shown to be associated with increasing malignancy grade in colon [5], bladder [6], pancreatic [7], breast [8], gastric [9] and lung carcinoma [10], whereas the retention of CBX7 expression correlates with a longer survival of the colon and pancreatic cancer patients [5], [7].