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Published in: BMC Cancer 1/2020

Open Access 01-12-2020 | Colon Cancer | Research article

Establishment of an immune-related gene pair model to predict colon adenocarcinoma prognosis

Authors: Jihang Luo, Puyu Liu, Leibo Wang, Yi Huang, Yuanyan Wang, Wenjing Geng, Duo Chen, Yuju Bai, Ze Yang

Published in: BMC Cancer | Issue 1/2020

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Abstract

Background

Colon cancer is the most common type of gastrointestinal cancer and has high morbidity and mortality. Colon adenocarcinoma (COAD) is the main pathological type of colon cancer, and much evidence has supported the correlation between the prognosis of COAD and the immune system. The current study aimed to develop a robust prognostic immune-related gene pair (IRGP) model to estimate the overall survival of patients with COAD.

Methods

The gene expression profiles and clinical information of patients with colon adenocarcinoma were obtained from the TCGA and GEO databases and were divided into training and validation cohorts. Immune genes were selected that showed a significant association with prognosis.

Results

Among 1647 immune genes, a model with 17 IRGPs was built that was significantly associated with OS in the training cohort. In the training and validation datasets, the IRGP model divided patients into the high-risk group and low-risk group, and the prognosis of the high-risk group was significantly worse (P<0.001). Univariate and multivariate Cox proportional hazard analyses confirmed the feasibility of this model. Functional analysis confirmed that multiple tumor progression and stem cell growth-related pathways were upregulated in the high-risk groups. Regulatory T cells and macrophages M0 were significantly highly expressed in the high-risk group.

Conclusion

We successfully constructed an IRGP model that can predict the prognosis of COAD, providing new insights into the treatment strategy of COAD.
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Literature
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go back to reference Krzystek-Korpacka M, Zawadzki M, Neubauer K, Bednarz-Misa I, Gorska S, Wisniewski J, et al. Elevated systemic interleukin-7 in patients with colorectal cancer and individuals at high risk of cancer: association with lymph node involvement and tumor location in the right colon. Cancer Immunol Immunother. 2017;66(2):171–9. https://doi.org/10.1007/s00262-016-1933-3.CrossRefPubMed Krzystek-Korpacka M, Zawadzki M, Neubauer K, Bednarz-Misa I, Gorska S, Wisniewski J, et al. Elevated systemic interleukin-7 in patients with colorectal cancer and individuals at high risk of cancer: association with lymph node involvement and tumor location in the right colon. Cancer Immunol Immunother. 2017;66(2):171–9. https://​doi.​org/​10.​1007/​s00262-016-1933-3.CrossRefPubMed
Metadata
Title
Establishment of an immune-related gene pair model to predict colon adenocarcinoma prognosis
Authors
Jihang Luo
Puyu Liu
Leibo Wang
Yi Huang
Yuanyan Wang
Wenjing Geng
Duo Chen
Yuju Bai
Ze Yang
Publication date
01-12-2020
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2020
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/s12885-020-07532-7

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