Fig. 3

LASSO and cox regression analysis to identify signature genes in the training set. A We intersected the differentially expressed genes (DEGs), prognostic genes and modular genes obtained from WGCNA analysis and obtained 33 shared genes. B In the training set, we performed Univariate cox regression analysis on these 33 shared genes to screen for prognosis-related genes. C Cross-validation of the LASSO regression. D Coefficient value of prognostic genes