Volume 2023, Issue 1 7040113
Research Article
Open Access

Pyroptosis-Related Signature Predicts the Progression of Ulcerative Colitis and Colitis-Associated Colorectal Cancer as well as the Anti-TNF Therapeutic Response

Yumei Ning

Yumei Ning

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
Kun Lin

Kun Lin

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
Jun Fang

Jun Fang

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Renmin Hospital of Huangmei County, Huanggang, China

Search for more papers by this author
Xiaojia Chen

Xiaojia Chen

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
Xinyi Hu

Xinyi Hu

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
Lan Liu

Lan Liu

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
Qiu Zhao

Corresponding Author

Qiu Zhao

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
Haizhou Wang

Corresponding Author

Haizhou Wang

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
Fan Wang

Corresponding Author

Fan Wang

Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China znhospital.cn

Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China

Search for more papers by this author
First published: 27 January 2023
Citations: 3
Academic Editor: Quanwen Liu

Abstract

Ulcerative colitis (UC) is a complex intestinal inflammation with an increasing risk of colitis-associated colorectal cancer (CAC). However, the pathogenesis is still unclear between active UC and inactive UC. Recently, it has been reported that pyroptosis-related genes (PRGs) are closely associated with inflammatory disease activity. Nevertheless, the specific roles of PRGs in the progression and treatment of UC and CAC remain unclear. In this study, we identified 30 differentially expressed PRGs based on the immune landscape of active and inactive UC samples. Meanwhile, weighted gene coexpression network analysis was applied to explore important genes associated with active UC. By intersecting with the differentially expressed PRGs, CASP5, GBP1, GZMB, IL1B, and IRF1 were selected as key PRGs to construct a pyroptosis-related signature (PR-signature). Then, logistic regression analysis was performed to validate the PR-signature and establish a pyroptosis-related score (PR-Score). We demonstrated that PR-Score had a powerful ability to distinguish active UC from inactive UC in multiple datasets. Besides, PR-Score was positively correlated with immune cell infiltration and inflammatory microenvironment in UC. Lower PR-Score was associated with a better response to anti-TNF therapy for patients with UC. Additionally, high-PR-Score was found to suppress CAC and improve the survival outcomes of patients with colorectal cancer. Finally, the levels of the PR-signature genes were validated both in vitro and in vivo. These findings can improve our understanding of PRGs in UC and provide new markers for predicting the occurrence of active UC or CAC and the treatment of UC.

Conflicts of Interest

No potential conflicts of interest were disclosed.

Data Availability

Publicly available datasets were analyzed in this study. These data can be found here: https://portal.gdc.cancer.gov/ and https://www.ncbi.nlm.nih.gov/geo/. All processed data and R codes used in this study can be obtained from the corresponding authors on reasonable request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.