Article (Scientific journals)
Long noncoding RNA LINC01111 suppresses pancreatic cancer aggressiveness by regulating DUSP1 expression via microRNA-3924.
Pan, Shutao; Shen, Ming; Zhou, Min et al.
2019In Cell Death and Disease, 10 (12), p. 883
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Keywords :
MicroRNAs; RNA, Long Noncoding; Dual Specificity Phosphatase 1; Dusp1 protein, mouse; Animals; Dual Specificity Phosphatase 1/metabolism; Female; Humans; Mice; Mice, Nude; MicroRNAs/genetics; Pancreatic Neoplasms/genetics; Pancreatic Neoplasms/mortality; RNA, Long Noncoding/metabolism; Pancreatic Neoplasms; Immunology; Cellular and Molecular Neuroscience; Cell Biology; Cancer Research
Abstract :
[en] Dysfunction in long noncoding RNAs (lncRNAs) is reported to participate in the initiation and progression of human cancer; however, the biological functions and molecular mechanisms through which lncRNAs affect pancreatic cancer (PC) are largely unknown. Here, we report a novel lncRNA, LINC01111, that is clearly downregulated in PC tissues and plasma of PC patients and acts as a tumor suppressor. We found that the LINC01111 level was negatively correlated with the TNM stage but positively correlated with the survival of PC patients. The overexpression of LINC01111 significantly inhibited cell proliferation, the cell cycle, and cell invasion and migration in vitro, as well as tumorigenesis and metastasis in vivo. Conversely, the knockdown of LINC01111 enhanced cell proliferation, the cell cycle, and cell invasion and migration in vitro, as well as tumorigenesis and metastasis in vivo. Furthermore, we found that high expression levels of LINC01111 upregulated DUSP1 levels by sequestering miR-3924, resulting in the blockage of SAPK phosphorylation and the inactivation of the SAPK/JNK signaling pathway in PC cells and thus inhibiting PC aggressiveness. Overall, these data reveal that LINC01111 is a potential diagnostic biomarker for PC patients, and the newly identified LINC01111/miR-3924/DUSP1 axis can modulate PC initiation and development.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Pan, Shutao;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China
Shen, Ming;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China
Zhou, Min;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China
Shi, Xiuhui ;  Université de Liège - ULiège > Département de pharmacie ; Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China
He, Ruizhi;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China
Yin, Taoyuan;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China
Wang, Min;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China
Guo, Xingjun;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China. xjguo@tjh.tjmu.edu.cn
Qin, Renyi;  Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, Hubei, China. ryqin@tjh.tjmu.edu.cn
Language :
English
Title :
Long noncoding RNA LINC01111 suppresses pancreatic cancer aggressiveness by regulating DUSP1 expression via microRNA-3924.
Publication date :
25 November 2019
Journal title :
Cell Death and Disease
eISSN :
2041-4889
Publisher :
Springer, England
Volume :
10
Issue :
12
Pages :
883
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
National Natural Science Foundation of China
Funding text :
This study was funded by The National Natural Science Foundation of China (No. 81772950 to R.Y.Q., No. 81602475 to X.J.G.).
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