Epithelial-mesenchymal transition interaction with CD8+ T cell, dendritic cell and immune checkpoints in the development of melanoma

Author:

Liang Tuo1,Chen Jiarui1,Xu Guoyong1,Zhang Zide1,Xue Jiang1,Zeng Haopeng1,Jiang Jie1,Chen Tianyou1,Qin Zhaojie1,Li Hao1,Ye Zhen1,Nie Yunfeng2,Liu Chong1,Zhan Xinli1

Affiliation:

1. Department of Spine and Osteopathy Ward, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China

2. Guangxi Medical University, Nanning, Guangxi, China

Abstract

BACKGROUND: Melanoma is fatal cancer originating from melanocytes, whose high metastatic potential leads to an extremely poor prognosis. OBJECTIVE: This study aimed to reveal the relationship among EMT, TIICs, and immune checkpoints in melanoma. METHODS: Gene expression data and clinical data of melanoma were downloaded from TCGA, UCSC Xena and GEO databases. EMT-related DEGs were detected for risk score calculation. “ESTIMATE” and “xCell” were used for estimating TIICs and obtaining 64 immune cell subtypes, respectively. Moreover, we evaluated the relationship between the risk score and immune cell subtypes and immune checkpoints. RESULTS: Seven EMT-related genes were selected to establish a risk scoring system because of their integrated prognostic relevance. The results of GSEA revealed that most of the gene sets focused on immune-related pathways in the low-risk score group. The risk score was significantly correlated with the xCell score of some TIICs, which significantly affected the prognosis of melanoma. Patients with a low-risk score may be associated with a better response to ICI therapy. CONCLUSION: The individualized risk score could effectively conduct risk stratification, overall survival prediction, ICI therapy prediction, and TME judgment for patients with melanoma, which would be conducive to patients’ precise treatment.

Publisher

IOS Press

Subject

Cancer Research,Genetics,Oncology,General Medicine

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