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Wang SY, Zhang LJ, Chen GJ, Ni QQ, Huang Y, Zhang D, Han FY, He WF, He LL, Ding YQ, Jiao HL, Ye YP. COPA A-to-I RNA editing hijacks endoplasmic reticulum stress to promote metastasis in colorectal cancer. Cancer Lett 2023; 553:215995. [PMID: 36336148 DOI: 10.1016/j.canlet.2022.215995] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
RNA editing is among the most common RNA level modifications for generating amino acid changes. We identified a COPA A-to-I RNA editing event in CRC metastasis. Our results showed that the COPA A-to-I RNA editing rate was significantly increased in metastatic CRC tissues and was closely associated with aggressive tumors in the T and N stages. The COPA I164V protein damaged the Golgi-ER reverse transport function, induced ER stress, promoted the translocation of the transcription factors ATF6, XBP1 and ATF4 into the nucleus, and activated the expression of MALAT1, MET, ZEB1, and lead to CRC cell invasion and metastasis. Moreover, the COPA A-to-I RNA editing rate was positively correlated with the immune infiltration score. Collectively, the COPA I164V protein hijacked ER stress to promote the metastasis of CRC, and the COPA A-to-I RNA editing rate may be a potential predictor for patient response to immune checkpoint inhibitor (ICIs) treatment.
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Affiliation(s)
- Shu-Yang Wang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Ling-Jie Zhang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Guo-Jun Chen
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Qi-Qi Ni
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Yuan Huang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Dan Zhang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Fang-Yi Han
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Wen-Feng He
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Li-Ling He
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China
| | - Yan-Qing Ding
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China.
| | - Hong-Li Jiao
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China.
| | - Ya-Ping Ye
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China; Guangdong Province Key Laboratory of Molecular Tumor Pathology, China.
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