PMID- 33302540 OWN - NLM STAT- MEDLINE DCOM- 20210625 LR - 20230219 IS - 2218-273X (Electronic) IS - 2218-273X (Linking) VI - 10 IP - 12 DP - 2020 Dec 8 TI - Long Noncoding RNA DANCR Activates Wnt/beta-Catenin Signaling through MiR-216a Inhibition in Non-Small Cell Lung Cancer. LID - 10.3390/biom10121646 [doi] LID - 1646 AB - Long noncoding RNA differentiation antagonizing nonprotein coding RNA (lncRNA-DANCR) is associated with poor prognosis in multiple cancers, and promotes cancer stemness and invasion. However, the exact mechanisms by which DANCR promotes non-small cell lung cancer (NSCLC) remain elusive. In this study, we determined that DANCR knockdown (KD) impeded cell migration and reduced stem-like characteristics in two NSCLC cell lines, A549 and H1755. Wnt signaling was shown to promote NSCLC proliferation, stemness, and invasion; therefore, we hypothesized that DANCR may regulate these activities through induction of the Wnt/beta-catenin pathway. DANCR KD reduced beta-catenin signaling and protein expression, and decreased the expression of beta-catenin gene targets c-Myc and Axin2. One of the well-defined functions of lncRNAs is their ability to bind and inhibit microRNAs. Through in silico analysis, we identified tumor suppressor miR-216a as a potential binding partner to DANCR, and confirmed this binding through coimmunoprecipitation and luciferase-reporter assays. Furthermore, we show that DANCR-induced beta-catenin protein expression may be blocked with miR-216a overexpression. Our findings illustrate a role of DANCR in NSCLC migration and stemness, and suggest a novel DANCR/miR-216a signaling axis in the Wnt/beta-catenin pathway. FAU - Yu, Justine E AU - Yu JE AUID- ORCID: 0000-0002-1113-1319 AD - Program in Molecular Medicine, University of Maryland Graduate Program in Life Sciences, Baltimore, MD 21201, USA. FAU - Ju, Julia A AU - Ju JA AUID- ORCID: 0000-0002-6395-4501 AD - Marlene and Stewart Greenebaum NCI Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA. FAU - Musacchio, Nicholas AU - Musacchio N AD - Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA. FAU - Mathias, Trevor J AU - Mathias TJ AUID- ORCID: 0000-0002-2830-8475 AD - Program in Molecular Medicine, University of Maryland Graduate Program in Life Sciences, Baltimore, MD 21201, USA. FAU - Vitolo, Michele I AU - Vitolo MI AUID- ORCID: 0000-0001-8055-9645 AD - Marlene and Stewart Greenebaum NCI Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA. AD - Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD 21201, USA. LA - eng GR - T32 CA154274/CA/NCI NIH HHS/United States GR - RSG-18-028-01-CSM/American Cancer Society/International PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20201208 PL - Switzerland TA - Biomolecules JT - Biomolecules JID - 101596414 RN - 0 (AXIN2 protein, human) RN - 0 (Axin Protein) RN - 0 (CTNNB1 protein, human) RN - 0 (DANCR long noncoding RNA, human) RN - 0 (MIRN216 microRNA, human) RN - 0 (MYC protein, human) RN - 0 (MicroRNAs) RN - 0 (Proto-Oncogene Proteins c-myc) RN - 0 (RNA, Long Noncoding) RN - 0 (RNA, Small Interfering) RN - 0 (SOX2 protein, human) RN - 0 (SOXB1 Transcription Factors) RN - 0 (beta Catenin) SB - IM MH - A549 Cells MH - Apoptosis/genetics MH - Axin Protein/genetics/metabolism MH - Cell Line, Tumor MH - Cell Movement MH - Cell Proliferation MH - Epithelial Cells/*metabolism/pathology MH - Gene Expression Regulation, Neoplastic MH - Humans MH - MicroRNAs/antagonists & inhibitors/*genetics/metabolism MH - Proto-Oncogene Proteins c-myc/genetics/metabolism MH - RNA, Long Noncoding/antagonists & inhibitors/*genetics/metabolism MH - RNA, Small Interfering/genetics/metabolism MH - SOXB1 Transcription Factors/genetics/metabolism MH - Spheroids, Cellular/metabolism/pathology MH - Wnt Signaling Pathway/*genetics MH - beta Catenin/*genetics/metabolism PMC - PMC7764320 OTO - NOTNLM OT - Wnt OT - lncRNA OT - microRNA OT - non-small cell lung cancer OT - beta-catenin COIS- The authors declare no conflict of interest. EDAT- 2020/12/12 06:00 MHDA- 2021/06/29 06:00 PMCR- 2020/12/08 CRDT- 2020/12/11 01:01 PHST- 2020/11/17 00:00 [received] PHST- 2020/12/06 00:00 [revised] PHST- 2020/12/06 00:00 [accepted] PHST- 2020/12/11 01:01 [entrez] PHST- 2020/12/12 06:00 [pubmed] PHST- 2021/06/29 06:00 [medline] PHST- 2020/12/08 00:00 [pmc-release] AID - biom10121646 [pii] AID - biomolecules-10-01646 [pii] AID - 10.3390/biom10121646 [doi] PST - epublish SO - Biomolecules. 2020 Dec 8;10(12):1646. doi: 10.3390/biom10121646.