Flow cytometric analysis revealed that CCND1 depletion reversed the down-regulation of percentage of cells at G0/G1 phase caused by PCNA-AS1 overexpression (Figure 7D), implying that CCND1 depletion reversed NSCLC cell cycle progression caused by PCNA-AS1 overexpression. Here, CCND1 is linked to non-small cell lung carcinoma.