miR-1247 is Correlated with Prognosis of Pancreatic Cancer and Inhibits Cell Proliferation by Targeting Neuropilins

ISSN: 1875-5666 (Online)
ISSN: 1566-5240 (Print)

Volume 17, 10 Issues, 2017

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Current Molecular Medicine

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David W. Li
College of Medicine
University of Nebraska Medical Center
Omaha, NE

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miR-1247 is Correlated with Prognosis of Pancreatic Cancer and Inhibits Cell Proliferation by Targeting Neuropilins

Current Molecular Medicine, 14(3): 316-327.

Author(s): S. Shi, Y. Lu, Y. Qin, W. Li, H. Cheng, Y. Xu, J. Xu, J. Long, L. Liu, C. Liu and X Yu.

Affiliation: (X. Yu) No. 270, Dong'An Road, Xuhui District, Shanghai, 200032, P.R. China.


Accumulating evidence indicates that microRNAs (miRNAs) have great potential as tumor biomarkers and therapeutic agents owing to their functions in tumorigenesis and cancer progression. Aberrant expression of miR-1247 has been found in several cancers and is predicted to play an important role in the pathological processes of pancreatic cancer by miRNA-regulated network analysis. We investigated the expression profile of miR-1247 in pancreatic cancer tissue microarray by in situ hybridization and found that miR-1247 was significantly down-regulated in pancreatic cancer tissues compared to matched benign tissues. High levels of miR-1247 expression were positively correlated with higher overall and recurrence free survival in pancreatic cancer patients, while negatively correlated with tumor grade. Using in vitro and in vivo models, we demonstrated that increased expression of miR-1247 inhibited proliferation, tumorigenicity, colony formation and triggered G0/G1 cell cycle arrest in pancreatic cancer cells. Moreover, we confirmed that neuropilin1 (NRP1) and neuropilin2 (NRP2) are direct targets of miR-1247 by western blot and luciferase reporter assay. Further studies indicated that low dose all trans retinoic acid (ATRA) can induce redifferentiation and restoration of miR-1247 in pancreatic cancer cells. These findings suggest that miR-1247, a novel tumor suppressor, can act as a potential biomarker and therapeutic agent for pancreatic cancer.


microRNA, neuropilin, pancreatic cancer, prognosis, retinoic acid, tumor grade.

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Article Details

Volume: 14
Issue Number: 3
First Page: 316
Last Page: 327
Page Count: 12
DOI: 10.2174/1566524014666140228120014
Price: $58

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