©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Mar 7, 2017; 23(9): 1568-1575
Published online Mar 7, 2017. doi: 10.3748/wjg.v23.i9.1568
Published online Mar 7, 2017. doi: 10.3748/wjg.v23.i9.1568
hsa-mir-183 is frequently methylated and related to poor survival in human hepatocellular carcinoma
Sumadi Lukman Anwar, Till Krech, Britta Hasemeier, Elisa Schipper, Hans Kreipe, Ulrich Lehmann, Institute of Pathology, Medizinische Hochschule Hannover, D30625 Hannover, Germany
Sumadi Lukman Anwar, Department of Surgery, Faculty of Medicine Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
Nora Schweitzer, Arndt Vogel, Department of Gastroenterology, Hepatology and Endocrinology, Medizinische Hochschule Hannover, Hannover D30625, Germany
Reena Buurman, Britta Skawran, Institute of Human Genetics, Medizinische Hochschule Hannover, D30625 Hannover, Germany
Author contributions: Anwar SL and Lehmann U conceived and designed the experiments; Anwar SL, Hasemeier B and Shipper E performed the experiments; Anwar SL, Krech T, Buurman R, Vogel A, Kreipe H, Skawran B and Lehmann U contributed to reagents/materials/analysis tools and analysed the data; Anwar SL and Lehmann U contributed to the writing of the manuscript; all authors made critical revisions related to the intellectual content of the manuscript, and approved the final version of the article to be published.
Supported by the Deutsche Forschungsgemeinschaft , No. (DFG) SFB-TRR77 "Liver cancer" (Project B1) .
Institutional review board statement: Primary tumor specimens were collected at the time of surgery as leftover from diagnostics at the Hannover Medical School Germany following protocol approved by the local ethics committee ("Ethik-Kommission der Medizinischen Hochschule Hannover", head: Prof. Dr. Tröger).
Conflict-of-interest statement: all authors declared no conflict of interest.
Data sharing statement: No additional data are available.
Correspondence to: Dr. Ulrich Lehmann, professor, Institute of Pathology, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany. lehmann.ulrich@mh-hannover.de
Telephone: +49-511-5324501 Fax: +49-511-5325799
Received: October 4, 2016
Peer-review started: October 10, 2016
First decision: October 20, 2016
Revised: December 13, 2016
Accepted: February 7, 2017
Article in press: February 8, 2017
Published online: March 7, 2017
Processing time: 152 Days and 14.5 Hours
Peer-review started: October 10, 2016
First decision: October 20, 2016
Revised: December 13, 2016
Accepted: February 7, 2017
Article in press: February 8, 2017
Published online: March 7, 2017
Processing time: 152 Days and 14.5 Hours
Core Tip
Core tip: A comprehensive screening using microRNA microarray in hepatocellular carcinoma (HCC) cells after DNMT1-, DNMT3A-, and/or DNMT3B-knockdown revealed upregulation of miR-23, miR-25, and miR-183. Using primary HCC tumor tissues, we confirmed frequent DNA hypermethylation at the hsa-mir-183 promoter. Hypermethylation of hsa-miR-183 was not found in benign liver tumors, adjacent tumor tissues as well as healthy livers and significantly correlated with poor prognosis. Therefore it represents a potential novel diagnostic and prognostic marker in HCC.