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Int. J. Mol. Sci. 2014, 15(4), 6314-6327; https://doi.org/10.3390/ijms15046314

GPC1 Regulated by miR-96-5p, Rather than miR-182-5p, in Inhibition of Pancreatic Carcinoma Cell Proliferation

1
Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
2
Department of Laboratory Diagnostics, Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
3
Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
*
Author to whom correspondence should be addressed.
Received: 24 December 2013 / Revised: 9 March 2014 / Accepted: 18 March 2014 / Published: 14 April 2014
(This article belongs to the Section Biochemistry, Molecular and Cellular Biology)
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Abstract

To determine the relationships between miR-96-5p/-182-5p and GPC1 in pancreatic cancer (PC), we conducted the population and in vitro studies. We followed 38 pancreatic cancer patients, measured and compared the expression of miR-96-5p/-182-5p, GPC1, characteristics and patients’ survival time of different miR-96-5p/-182-5p expression levels in PC tissues. In an in vitro study, we investigated the proliferation, cycle and apotosis in cells transfected with mimics/inhibitors of the two miRNAs, and determine their effects on GPC1 by dual-luciferase assay. In the follow-up study, we found that the expressions of miR-96-5p/-182-5p were lower/higher in PC tissues; patients with lower/higher levels of miR-96-5p/-182-5p suffered poorer characteristics and decreased survival time. In the in vitro study, the expressions of miR-96-5p/-182-5p were different in cells. Proliferation of cells transfected with miR-96-5p mimics/inhibitors was lower/higher in Panc-1/BxPC-3; when transfected with miR-182-5p mimics/inhibitors, proliferation of cells were higher/lower in AsPC-1/Panc-1. In a cell cycle study, panc-1 cells transfected with miR-96-5p mimics was arrested at G0/G1; BxPC-3 cells transfected with miR-96-5p inhibitors showed a significantly decrease at G0/G1; AsPC-1 cells transfected with miR-182-5p mimics was arrested at S; Panc-1 cells transfected with miR-182-5p inhibitors showed a decrease at S. MiR-96-5p mimics increased the apoptosis rate in Panc-1 cells, and its inhibitors decreased the apoptosis rate in BxPC-3. Dual luciferase assay revealed that GPC1 was regulated by miR-96-5p, not -182-5p. We found that miR-96-5p/-182-5p as good markers for PC; miR-96-5p, rather than -182-5p, inhibits GPC1 to suppress proliferation of PC cells. View Full-Text
Keywords: miR-96-5p; miR-182-5p; GPC1; PC miR-96-5p; miR-182-5p; GPC1; PC
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Li, C.; Du, X.; Tai, S.; Zhong, X.; Wang, Z.; Hu, Z.; Zhang, L.; Kang, P.; Ji, D.; Jiang, X.; Zhou, Q.; Wan, M.; Jiang, G.; Cui, Y. GPC1 Regulated by miR-96-5p, Rather than miR-182-5p, in Inhibition of Pancreatic Carcinoma Cell Proliferation. Int. J. Mol. Sci. 2014, 15, 6314-6327.

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