Volume 64, Issue 4 pp. 668-679
RESEARCH ARTICLE

TRIM36 Inhibits the Development of AOM/DSS-Induced Colitis-Associated Colorectal Cancer by Promoting the Ubiquitination and Degradation of GRB7

Ju Wu

Ju Wu

Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, China

The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China

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Zhengbo Yang

Zhengbo Yang

Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, China

The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China

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Xi Chen

Xi Chen

Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, China

The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China

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Shuangshuang Hou

Shuangshuang Hou

Department of General Surgery, Fuyang Normal University Second Affiliated Hospital, Fuyang, China

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Nanbo Li

Nanbo Li

Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, China

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Yaoyuan Chang

Yaoyuan Chang

Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, China

The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China

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Jiajun Yin

Corresponding Author

Jiajun Yin

Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, China

The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China

Correspondence: Jiajun Yin ([email protected])

Jian Xu ([email protected])

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Jian Xu

Corresponding Author

Jian Xu

Department of General Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, China

The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China

Correspondence: Jiajun Yin ([email protected])

Jian Xu ([email protected])

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First published: 13 January 2025
Citations: 1

Ju Wu, Zhengbo Yang and Xi Chen contributed equally to this work and should be considered co-first author.

ABSTRACT

Colorectal cancer (CRC) is among the most common cancer types for both sexes. Tripartite motif 36 (TRIM36) has been reported to be aberrantly expressed in several cancer types, suggesting its involvement in cancer progression. However, the role of TRIM36 in the colorectal carcinogenesis remain unknown. In our in vivo experiments, we investigated the role of TRIM36 in AOM/DSS-induced colitis-associated carcinogenesis using TRIM36-knockout (TRIM36 KO) mice. Subsequently, we overexpressed and knocked down TRIM36 expression in two CRC cell lines to further confirm the role of TRIM36 in vitro. The UALCAN database revealed a significant decrease in TRIM36 levels in CRC tissues, including colon adenocarcinoma and rectum adenocarcinoma. A significant correlation was observed between TRIM36 levels and the histological subtype, individual cancer stage, and nodal metastasis status. The downregulation of TRIM36 in CRC tissues was further confirmed using our own collected clinical specimens. Low expression of TRIM36 was found to be associated with unfavorable overall survival and recurrence-free survival in CRC. TRIM36 KO promoted inflammation, inhibited autophagy, and facilitated the development of AOM/DSS-induced CRC. TRIM36 overexpression inhibited proliferation, migration, and invasion, while activated autophagy in CRC cells. TRIM36 directly bound to and regulated the ubiquitination of GRB7 protein. The tumor-suppressive role of TRIM36 in CRC cells was mediated by GRB7. The TRIM36/GRB7 axis may represent a promising therapeutic target for the treatment of CRC.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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