PCNA and non-small cell lung carcinoma: The experimental results showed that compared with the model control group, the expression of autophagy-related proteins LC3 and beclin-1 were significantly upregulated and that of the proliferation-related protein PCNA was significantly downregulated, which were consistent with the effects of the previous cell experiment (Figures 5(a)–5(c)), further confirming the induction of NSCLC cells autophagy by patchouli alcohol.