Figure 2. Construction of the cuproptosis-related lncRNAs predictive signature. (A) LASSO coefficient profiles of the expression of 135 lncRNAs. (B) Selection of the penalty parameter (λ) in the LASSO model via 20-fold cross-validation. (C) The expression levels of eight cuproptosis-related lncRNAs in tumor and normal tissues. (D) The co-expression network of prognostic cuproptosis-related lncRNAs. (E) Sankey diagram of prognostic cuproptosis-based lncRNAs. Abbreviations: lncRNAs: long noncoding RNAs; N: normal; T: tumor.