Long non-coding RNA HAND2-AS1 inhibits invasion and metastasis in endometrioid endometrial carcinoma through inactivating neuromedin U

Long non-coding RNA HAND2-AS1 inhibits invasion and metastasis in endometrioid endometrial... Endometrioid endometrial carcinoma (EEC) is one of the common causes of cancer-related mortality in women. Mounting evidences suggest that long noncoding RNAs (lncRNAs) function in multiple cancers. In this study, we discovered that HAND2-AS1, a lncRNA transcribed antisense adjacent to Heart and Neural Crest Derivatives Expressed 2 (HAND2) in chromosome 4q33-34, is significantly down-regulated in EEC. HAND2-AS1 and HAND2 were frequently down-regulated in EEC tissues, especially in poor differentiated tumor tissues. Down-regulation of HAND2-AS1 and HAND2 was correlated with tumor grade, lymph node metastasis and recurrence of EEC patients. HAND2-AS1 and HAND2 were co-downregulated by promoter DNA hypermethylation in EEC. Overexpression of HAND2-AS1 in EEC cells demonstrated that HAND2-AS1 suppressed migration and invasion of EEC cells. Similarly, overexpression of HAND2 also inhibited migration and invasion EEC cells indicating that HAND2-AS1 and HAND2 had a concordant role in the progression of EEC. However, HAND2 was not regulated by HAND2-AS1 in EEC. Furthermore, the anti-tumorigenic effect of HAND2-AS1 was mediated by down-regulating NMU, which has an oncogenic role in EEC. Our findings therefore provide the first evidence that HAND2-AS1 is a critical tumor suppressor in EEC. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Cancer Letters Elsevier

Long non-coding RNA HAND2-AS1 inhibits invasion and metastasis in endometrioid endometrial carcinoma through inactivating neuromedin U

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0304-3835
D.O.I.
10.1016/j.canlet.2017.10.028
Publisher site
See Article on Publisher Site

Abstract

Endometrioid endometrial carcinoma (EEC) is one of the common causes of cancer-related mortality in women. Mounting evidences suggest that long noncoding RNAs (lncRNAs) function in multiple cancers. In this study, we discovered that HAND2-AS1, a lncRNA transcribed antisense adjacent to Heart and Neural Crest Derivatives Expressed 2 (HAND2) in chromosome 4q33-34, is significantly down-regulated in EEC. HAND2-AS1 and HAND2 were frequently down-regulated in EEC tissues, especially in poor differentiated tumor tissues. Down-regulation of HAND2-AS1 and HAND2 was correlated with tumor grade, lymph node metastasis and recurrence of EEC patients. HAND2-AS1 and HAND2 were co-downregulated by promoter DNA hypermethylation in EEC. Overexpression of HAND2-AS1 in EEC cells demonstrated that HAND2-AS1 suppressed migration and invasion of EEC cells. Similarly, overexpression of HAND2 also inhibited migration and invasion EEC cells indicating that HAND2-AS1 and HAND2 had a concordant role in the progression of EEC. However, HAND2 was not regulated by HAND2-AS1 in EEC. Furthermore, the anti-tumorigenic effect of HAND2-AS1 was mediated by down-regulating NMU, which has an oncogenic role in EEC. Our findings therefore provide the first evidence that HAND2-AS1 is a critical tumor suppressor in EEC.

Journal

Cancer LettersElsevier

Published: Jan 28, 2018

References

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