MUC2 and cervical cancer: In our previous research [91], we identified elevated expression levels of mucin 2 (MUC2) in PNI (+) cervical cancer patients in the TCGA cohort through the evaluation of perineural invasion and differential expression analysis (log2 fold-change = 3.15, p < 0.001; Figure 3; a volcano plot is shown in Supplementary Figure S1).