Abstract
Backgrounds
Among tumor microenvironment, the immune components in it have an important influence on gene expression and clinical efficacy. We aim to find out the role of those in skin cutaneous melanoma (SKCM).
Objectives
Gene expression profile and homologous clinical information of SKCM patients were obtained by TCGA (The Cancer Genome Atlas) and UCSC Toil. SsGSEA method was used to evaluate the immune cell infiltration of 468 TCGA-SKCM samples divided into high immune cell infiltration group (HICI) and low immune cell infiltration group (LICI). We used the Edger packet to conduct difference analysis on normal samples (GTEx) and cancer samples (TCGA), and combined it with the difference of the HICI group and LICI group, to find out the common differential expression of lncRNA in both groups. The prognostic value of immune-related lncRNAs was studied by univariate Cox, Lasso-Cox and multivariate Cox regression analysis, and a prognostic model was established. C index and calibration diagram were used to judge the accuracy of the model, and DCA was used to judge the net benefit.
Results
Six prognostic markers of immune-related lncRNA genes were established, which could be used as independent prognostic factors. The net benefit and prediction accuracy are significantly higher than TNM Stage.
Conclusion
The prognostic model identified in this study is a reliable biomarker for SKCM. The Nomogram survival prediction model based on it is a reliable way to predict the median survival time of patients, which may lay the foundation for future treatment of this disease.
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Data availability
The datasets analyzed in this study were obtained from The Cancer Genome Atlas (TCGA, https://portal.gdc.cancer.gov/).
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Acknowledgements
We gratefully acknowledge Chengcheng He for his technical support on this manuscript.
Funding
This study was supported by the Luzhou Science and Technology Department Project (2020-JYJ-44), Sichuan Science and Technology of Traditional Chinese Medicine Administration Project (2020JC0134), and the Science Foundation of Southwest Medical University (2020ZRZD001).
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YC and GZ conceived and designed the study; NH, CH and YH performed data analysis; SL and JY assisted in data curation and analyzed the references; NH and YC wrote the paper; all authors read and approved the final version of the manuscript.
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Hu, N., Huang, C., He, Y. et al. A novel immune-related LncRNA prognostic signature for cutaneous melanoma. Mol. Cell. Toxicol. 20, 377–387 (2024). https://doi.org/10.1007/s13273-023-00351-4
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DOI: https://doi.org/10.1007/s13273-023-00351-4