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Tumor Discovery                                            Pyroptosis-related genes in breast cancer progression




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            Figure 4. Differential genes related to pyroptosis are used for tumor classification. (A) Heatmap depicting the two clusters grouped by the differential genes.
            (B) Kaplan-Meier overall survival (OS) curves for the two different clusters. (C) The consensus clustering matrix (k = 2) was used to separate 654 patients
            with breast cancer into two different groups.
            multivariate Cox regression analysis showed that the risk   “limma” package, and false discovery rate < 0.05 and |
            score for the patients with BC in the TCGA cohort was also   log2FC | ≥ 1 were applied. The TCGA cohort yielded a
            an independent prognostic predictor after correcting for   total of 100 different genes between the low-  and high-
            other confounding factors (HR = 4.353, CI: 2.638 − 7.183,   risk  categories.  Among  these,  in  the  high-risk  group,
            Figure  6B). To further analyze the connections between   88 genes were down-regulated, and the remaining 12
            clinicopathologic features and risk groups, a heatmap was   genes were up-regulated. On this basis, GO and KEGG
            constructed for the TCGA cohort, which revealed that the   analyses were performed (P < 0.05). The results of the
            age, survival status, and gender of the patients were diversely   GO analysis (Figure 7) showed that the differential genes
            distributed across the two subgroups (P < 0.01, Figure 6C).  were primarily correlated with the leukocyte cell-cell
                                                               adhesion and cell chemotaxis in the biological process, the
            3.5. Functional analyses based on the risk model   plasma membrane’s outer layer in the cellular component,
            To investigate the variations in gene functions and   and antigen binding in the molecular function. The
            pathways amongst the subgroups separated by the risk   KEGG pathway is mainly involved in cytokine-cytokine
            model, the differential genes were extracted using the   receptor interactions, human T-cell leukemia virus 1


            Volume 3 Issue 3 (2024)                         7                                 doi: 10.36922/td.3469
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