MUC5AC and AIDS dementia complex: In contrast, cluster #2 had higher expression levels of some members of the mucin family, such as MUC1, MUC5B and MUC6, than cluster #1, and the sampling regions of cluster #2 (PT1, PT3, PT4, LN2-1 and LN2-2) were classified as ADC according to the histopathological features.