PCBP1 and lung adenocarcinoma: In the 16 lung adenocarcinoma samples previously used to detect the degree of Treg infiltration and the expression of PCBP1-AS1, we also detected the mRNA expression of TGF-β, and we found that the expression of PCBP1-AS1 and TGF-β was significantly negatively correlated (Figure 11C, R = −0.519, p value = 0.0394).