Title:Multiomics Analysis of Disulfidptosis Patterns and Integrated
Machine Learning to Predict Immunotherapy Response in Lung
Adenocarcinoma
Volume: 31
Issue: 25
Author(s): Junzhi Liu, Huimin Li, Nannan Zhang, Qiuping Dong and Zheng Liang*
Affiliation:
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, 300052, China
Keywords:
Disulfidptosis, immune microenvironment, single cell, drug response, TCGA database, lung adenocarcinoma.
Abstract:
Background: Recent studies have unveiled disulfidptosis as a phenomenon intimately
associated with cellular damage, heralding new avenues for exploring tumor
cell dynamics. We aimed to explore the impact of disulfide cell death on the tumor immune
microenvironment and immunotherapy in lung adenocarcinoma (LUAD).
Methods: We initially utilized pan-cancer transcriptomics to explore the expression,
prognosis, and mutation status of genes related to disulfidptosis. Using the LUAD multi-
-omics cohorts in the TCGA database, we explore the molecular characteristics of subtypes
related to disulfidptosis. Employing various machine learning algorithms, we construct
a robust prognostic model to predict immune therapy responses and explore the
model's impact on the tumor microenvironment through single-cell transcriptome data.
Finally, the biological functions of genes related to the prognostic model are verified
through laboratory experiments.
Results: Genes related to disulfidptosis exhibit high expression and significant prognostic
value in various cancers, including LUAD. Two disulfidptosis subtypes with distinct
prognoses and molecular characteristics have been identified, leading to the development
of a robust DSRS prognostic model, where a lower risk score correlates with a
higher response rate to immunotherapy and a better patient prognosis. NAPSA, a critical
gene in the risk model, was found to inhibit the proliferation and migration of LUAD
cells.
Conclusion: Our research introduces an innovative prognostic risk model predicated upon
disulfidptosis genes for patients afflicted with Lung Adenocarcinoma (LUAD). This
model proficiently forecasts the survival rates and therapeutic outcomes for LUAD patients,
thereby delineating the high-risk population with distinctive immune cell infiltration
and a state of immunosuppression. Furthermore, NAPSA can inhibit the proliferation
and invasion capabilities of LUAD cells, thereby identifying new molecules for clinical
targeted therapy.