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J Cancer 2020; 11(11):3369-3374. doi:10.7150/jca.40512 This issue Cite

Research Paper

Down-regulation of Long Non-coding RNA LINC01554 in Hepatocellular Cancer and its Clinical Significance

Yuan Ding^1,2,3,4,5*, Zhongquan Sun^1,2,3,4,5*, Sitong Zhang^1,2,3,4,5*, Yining Chen^1,2,3,4,5, Bo Zhou^1,2,3,4,5, Guogang Li^1,2,3,4,5, Qiang Sun^1,2,3,4,5, Dongkai Zhou^1,2,3,4,5, Yao Ge^2,3,4,5, Sheng Yan^1,2,3,4,5✉, Weilin Wang^1,2,3,4,5✉

1. Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
2. Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou 310009, China
3. Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang Province, Hangzhou 310009, China
4. Clinical Medicine Innovation Center of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Disease of Zhejiang University, Hangzhou 310009, China
5. Clinical Research Center of Hepatobiliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310009, China
*These authors contributed equally to this work.

✉ Corresponding authors: Weilin Wang, MD, Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, No.88 Jiefang Road, Hangzhou, Zhejiang Provine, P.R.China, 310009. Tel:+8657187315003, Fax:+8657187022776; Email: wamedu.cn. And to: Sheng Yan, MD, Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, No.88 Jiefang Road, Hangzhou, Zhejiang Provine, P.R.China, 310009. Tel: 0571-87236688; Fax: 0571-87236765; E-mail: shengyanedu.cn More

Abstract

Background: For high morbidity rate but lack of early accurate screening, hepatocellular cancer (HCC) manifests as the fourth leading cause of cancer related death worldwide. Accumulating evidence demonstrated that a series of long noncoding RNA (lncRNA) have strong association with pathogenesis and clinical evaluation of HCC. LINC01554, one kind of lncRNA, has been found specifically enriched in liver tissue. However, the relationship between LINC01554 expression and HCC tumorigenesis remains unclear.

Methods: The relative LINC01554 expression was measured in HCC tissues of 138 patients and several HCC cell lines using quantitative real-time PCR. Patients were grouped according to individual LINC01554 expression. Then, the potential association between LINC01554 expression in HCC tissues and clinical characteristics as well as prognostic information of patients was evaluated.

Results: Compared to correspongding adjacent liver tissues, the LINC01554 expression in HCC was significantly down-regulated (P=0.001). And its expression levels in HCC cell lines were also remarkably lower than that in normal human hepatocyte cell line (P<0.001). Besides, the expression level of LINC01554 was significantly related to tumor size, multiple lesions, TNM stages, tumor recurrence rate as well as long-term survival in HCC patients (P<0.05).

Conclusion: The research revealed that LINC01554 was down-regulated in HCC and it could be used for the accurate diagnosis and prognostic prediction of HCC patients.

Keywords: long non-coding RNA, LINC01554, hepatocellular cancer, accurate diagnosis, prognostic prediction

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