Prognostic Hub Genes in the Immune Microenvironment of Lung Adenocarcinoma by Estimation
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Published:2021-12-14
Issue:1
Volume:25
Page:77-89
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ISSN:1386-2073
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Container-title:Combinatorial Chemistry & High Throughput Screening
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language:en
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Short-container-title:CCHTS
Author:
Liu Shanshan1ORCID,
Tian Wenjuan1,
Li Burong1ORCID
Affiliation:
1. Department of Clinical Laboratory, Second Affiliated Hospital, Xi’an Jiaotong University, Xi'an, Shaanxi, 710004, China
Abstract
Background:
The mortality of lung adenocarcinoma (LUAD) is high. Recent studies
have found that the degree of immune infiltration and stromal cells in the tumour microenvironment
or tumours makes a significant contribution to prognosis.
Methods:
During the study, we screened differentially expressed genes (DEGs) of the TCGA
database for prognostic genes in the LUAD immune microenvironment. Furthermore, immune
and stromal cells were quantified using the ESTIMATE algorithm. To study the effects of
immune and stromal cell-associated genes on the prognosis of LUAD, LUAD patients were
divided into high and low groups according to their immune/stromal scores. The obtained
scores were found to be related to the phenotype and survival rate of LUAD patients. By selecting
DEGs with high expression in immune and stromal cells, we performed functional enrichment
analysis and found that most genes are associated with pathways of cancer, stimulus
response and MAPK signaling. The functions and enriched pathways of LUAD prognostic
genes were shown by a protein-protein interaction (PPI) network. Nonetheless, an external database
was used to validate the prognostic genes from the TCGA.
Results:
Prognostic genes were listed according to their expression position and protein function.
Conclusion:
We provided a new targets for immunotherapy of LUAD, which further provides basic knowledge for future clinical research.
Publisher
Bentham Science Publishers Ltd.
Subject
Organic Chemistry,Computer Science Applications,Drug Discovery,General Medicine