Exploration of signature based on T cell-related genes in stomach adenocarcinoma by analysis of single cell sequencing data

BACKGROUND: Gastric cancer (GC) is a leading reason for the death of cancer around the world. The immune microenvironment counts a great deal in immunotherapy of advanced tumors, in which T cells exert an indispensable function.

METHODS: Single-cell RNA sequencing data were utilized to characterize the expression profile of T cells, followed by T cell-related genes (TCRGs) to construct signature and measure differences in survival time, enrichment pathways, somatic mutation status, immune status, and immunotherapy between groups.

RESULTS: The complex tumor microenvironment was analyzed by scRNA-seq data of GC patients. We screened for these T cell signature expression genes and the TCRGs-based signature was successfully constructed and relied on the riskscore grouping. In gene set enrichment analysis, it was shown that pro-tumor and suppressive immune pathways were more abundant in the higher risk group. We also found different infiltration of immune cells in two groups, and that the higher risk samples had a poorer response to immunotherapy.

CONCLUSION: Our study established a prognostic model, in which different groups had different prognosis, immune status, and enriched features. These results have provided additional insights into prognostic evaluation and the development of highly potent immunotherapies in GC.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:16

Enthalten in:

Aging - 16(2024), 7 vom: 25. März, Seite 6035-6053

Sprache:

Englisch

Beteiligte Personen:

Wang, Huimei [VerfasserIn]
An, Nan [VerfasserIn]
Pei, Aiyue [VerfasserIn]
Sun, Yongxiao [VerfasserIn]
Li, Shuo [VerfasserIn]
Chen, Si [VerfasserIn]
Zhang, Nan [VerfasserIn]

Links:

Volltext

Themen:

Biomarkers, Tumor
Gastric cancer
Immune microenvironment
Immunotherapy
Journal Article
Prognosis
Research Support, Non-U.S. Gov't
Single-cell sequencing

Anmerkungen:

Date Completed 23.04.2024

Date Revised 27.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.18632/aging.205687

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370255704