Volume 63, Issue 2 pp. 224-237
RESEARCH ARTICLE

Inhibition of the RBMS1/PRNP axis improves ferroptosis resistance-mediated oxaliplatin chemoresistance in colorectal cancer

Yini Xu

Yini Xu

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Jingpeng Hao

Jingpeng Hao

Department of Anorectal Surgery, Tianjin Medical University Second Hospital, Tianjin, China

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Qiang Chen

Qiang Chen

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Yafei Qin

Yafei Qin

Department of Vascular Surgery, Henan Provincial People's Hospital, The Affiliated People's Hospital of Zhengzhou University, Zhengzhou, China

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Hong Qin

Hong Qin

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Shaohua Ren

Shaohua Ren

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Chenglu Sun

Chenglu Sun

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Yanglin Zhu

Yanglin Zhu

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Bo Shao

Bo Shao

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Jingyi Zhang

Jingyi Zhang

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

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Hao Wang

Corresponding Author

Hao Wang

Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China

Tianjin General Surgery Institute, Tianjin, China

Correspondence Hao Wang, Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Rd, Heping District, Tianjin 300052, China.

Email: [email protected] and [email protected]

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First published: 20 October 2023
Citations: 1

Yini Xu, Jingpeng Hao, and Qiang Chen contributed equally to this work.

Abstract

The majority of patients with advanced colorectal cancer have chemoresistance to oxaliplatin, and studies on oxaliplatin resistance are limited. Our research showed that RNA-binding motif single-stranded interacting protein 1 (RBMS1) caused ferroptosis resistance in tumor cells, leading to oxaliplatin resistance. We employed bioinformatics to evaluate publically accessible data sets and discovered that RBMS1 was significantly upregulated in oxaliplatin-resistant colorectal cancer cells, in tandem with ferroptosis suppression. In vivo and in vitro studies revealed that inhibiting RBMS1 expression caused ferroptosis in colorectal cancer cells, restoring tumor cell sensitivity to oxaliplatin. Mechanistically, this is due to RBMS1 inducing prion protein translation, resulting in ferroptosis resistance in tumor cells. Validation of clinical specimens revealed that RBMS1 is similarly linked to tumor development and a poor prognosis. Overall, RBMS1 is a potential therapeutic target with clinical translational potential, particularly for oxaliplatin chemoresistance in colorectal cancer.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflict of interest.

DATA AVAILABILITY STATEMENT

The data sets referenced to support the conclusions of this research are included in the article and its Supporting Information files.

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