2. Academic Validation
  3. Circular RNA circLDLR facilitates cancer progression by altering the miR-30a-3p/SOAT1 axis in colorectal cancer

Circular RNA circLDLR facilitates cancer progression by altering the miR-30a-3p/SOAT1 axis in colorectal cancer

  • Cell Death Discov. 2022 Jul 11;8(1):314. doi: 10.1038/s41420-022-01110-5.
Ruoqin Wang 1 2 3,  Jiayu Wang 1 2,  Yanjun Chen 1 2,  Yuqi Chen 1 2,  Qinhua Xi 2,  Linqing Sun 1 2,  Xueguang Zhang 1 4 5,  Guangbo Zhang 1 4 5,  Xianglin Ding 6,  Tongguo Shi 7 8 9 10,  Weichang Chen 11 12 13 14 15
Affiliations

Affiliations

  • 1 Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China.
  • 2 Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China.
  • 3 Suzhou Key Laboratory for Tumor Immunology of Digestive Tract, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China.
  • 4 Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 178 East Ganjiang Road, Suzhou, China.
  • 5 Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China.
  • 6 Department of Gastroenterology Suzhou Yongding Hospital, 1388 Gaoxin Road, Suzhou, China. Darnic5911@163.com.
  • 7 Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China. shitg@suda.edu.cn.
  • 8 Suzhou Key Laboratory for Tumor Immunology of Digestive Tract, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China. shitg@suda.edu.cn.
  • 9 Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 178 East Ganjiang Road, Suzhou, China. shitg@suda.edu.cn.
  • 10 Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China. shitg@suda.edu.cn.
  • 11 Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China. weichangchen@126.com.
  • 12 Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China. weichangchen@126.com.
  • 13 Suzhou Key Laboratory for Tumor Immunology of Digestive Tract, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China. weichangchen@126.com.
  • 14 Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 178 East Ganjiang Road, Suzhou, China. weichangchen@126.com.
  • 15 Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China. weichangchen@126.com.
PMID: 35821230 DOI: 10.1038/s41420-022-01110-5
Abstract

Colorectal Cancer (CRC) is the third most common malignancy worldwide. Circular RNAs (circRNAs) have been reported to play critical regulatory roles in tumorigenesis, serving as tumor biomarkers and therapeutic targets. However, the contributions of circRNAs to CRC tumorigenesis are unclear. In our study, high expression of circLDLR was found in CRC tissues and cells and was closely associated with the malignant progression and poor prognosis of CRC patients. We demonstrated that circLDLR boosts growth and metastasis of CRC cells in vitro and in vivo, and modulates Cholesterol levels in vitro. Mechanistically, we showed that circLDLR competitively binds to miR-30a-3p and prevents it from reducing the SOAT1 level, facilitating the malignant progression of CRC. In sum, our findings illustrate that circLDLR participates in CRC tumorigenesis and metastasis via the miR-30a-3p/SOAT1 axis, serving as a potential biomarker and therapeutic target in CRC.

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