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Tumor Discovery                                                    Prognostic biomarkers in pancreatic cancer




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            Figure 2. (A) Univariate Cox regression analysis showed that selected lncRNA was significantly associated with clinical prognosis. (B) Adjusted parameters
            (logλ) of OS-related proteins were selected to cross-validate error curves. A vertical imaginary line was drawn at the optimal value according to the
            minimum criterion and the 1-se criterion. (C) Distribution of LASSO coefficients and vertical imaginary lines for OS-associated lncRNA are plotted with
            values selected by ten-fold cross-validation.

            of functional reviews. The ggpubr package and the limma   2.5. Model estimation of tumor immune
            package in R studio software were also used to analyze,   microenvironment, principal component analysis,
            whether the tumor mutation burden of the high-risk and   and Kaplan–Meier survival analysis
            low-risk groups was different. The survival package and
            survminer package in the R studio software were then used   Differential immune function in  high-risk and low-risk
            to analyze the survival of the high and low tumor mutation   groups  was  screened  by  limma  package,  GSVA  package,
            burden groups.                                     and GSEABase package in R studio software. The maftools



            Volume 1 Issue 2 (2022)                         4                       https://doi.org/10.36922/td.v1i2.165
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