PMID- 34650128 OWN - NLM STAT- MEDLINE DCOM- 20220126 LR - 20220126 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 11 IP - 1 DP - 2021 Oct 14 TI - DLEU1 promotes oral squamous cell carcinoma progression by activating interferon-stimulated genes. PG - 20438 LID - 10.1038/s41598-021-99736-5 [doi] LID - 20438 AB - Long noncoding RNAs (lncRNAs) are deeply involved in cancer development. We previously reported that DLEU1 (deleted in lymphocytic leukemia 1) is one of the lncRNAs overexpressed in oral squamous cell carcinoma (OSCC) cells, where it exhibits oncogenic activity. In the present study, we further clarified the molecular function of DLEU1 in the pathogenesis of OSCC. Chromatin immunoprecipitation-sequencing (ChIP-seq) analysis revealed that DLEU1 knockdown induced significant changes in the levels of histone H3 lysine 4 trimethylation (H3K4me3) and H3K27 acetylation (H3K27ac) in OSCC cells. Notably, DLEU1 knockdown suppressed levels of H3K4me3/ H3K27ac and expression of a number of interferon-stimulated genes (ISGs), including IFIT1, IFI6 and OAS1, while ectopic DLEU1 expression activated these genes. Western blot analysis and reporter assays suggested that DLEU1 upregulates ISGs through activation of JAK-STAT signaling in OSCC cells. Moreover, IFITM1, one of the ISGs induced by DLUE1, was frequently overexpressed in primary OSCC tumors, and its knockdown inhibited OSCC cell proliferation, migration and invasion. These findings suggest that DLEU1 exerts its oncogenic effects, at least in part, through activation of a series ISGs in OSCC cells. CI - (c) 2021. The Author(s). FAU - Hatanaka, Yui AU - Hatanaka Y AD - Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan. AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. FAU - Niinuma, Takeshi AU - Niinuma T AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. FAU - Kitajima, Hiroshi AU - Kitajima H AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. FAU - Nishiyama, Koyo AU - Nishiyama K AD - Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Maruyama, Reo AU - Maruyama R AD - Project for Cancer Epigenomics, Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan. FAU - Ishiguro, Kazuya AU - Ishiguro K AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. AD - Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Toyota, Mutsumi AU - Toyota M AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. FAU - Yamamoto, Eiichiro AU - Yamamoto E AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. FAU - Kai, Masahiro AU - Kai M AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. FAU - Yorozu, Akira AU - Yorozu A AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. AD - Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Sekiguchi, Shohei AU - Sekiguchi S AD - Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan. AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. FAU - Ogi, Kazuhiro AU - Ogi K AD - Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Dehari, Hironari AU - Dehari H AD - Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Idogawa, Masashi AU - Idogawa M AD - Department of Medical Genome Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Sasaki, Yasushi AU - Sasaki Y AD - Biology Division, Department of Liberal Arts and Sciences, Center for Medical Education, Sapporo Medical University, Sapporo, Japan. FAU - Tokino, Takashi AU - Tokino T AD - Department of Medical Genome Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Miyazaki, Akihiro AU - Miyazaki A AD - Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan. FAU - Suzuki, Hiromu AU - Suzuki H AD - Department of Molecular Biology, Sapporo Medical University School of Medicine, S1, W17, Chuo-ku, Sapporo, 060-8556, Japan. hsuzuki@sapmed.ac.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211014 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Antigens, Differentiation) RN - 0 (DLEU1 lncRNA, human) RN - 0 (RNA, Long Noncoding) RN - 0 (Receptors, Interferon) RN - 0 (STAT1 Transcription Factor) RN - 0 (STAT1 protein, human) RN - 0 (leu-13 antigen) RN - 9008-11-1 (Interferons) SB - IM MH - Antigens, Differentiation/metabolism MH - Carcinoma, Squamous Cell/metabolism/*pathology MH - Cell Line, Tumor MH - *Gene Expression Regulation, Neoplastic MH - Genes, Neoplasm MH - Histone Code MH - Humans MH - Interferons/metabolism MH - Mouth Neoplasms/metabolism/*pathology MH - Phosphorylation MH - RNA, Long Noncoding/*metabolism/physiology MH - Receptors, Interferon/metabolism MH - STAT1 Transcription Factor/metabolism MH - Up-Regulation PMC - PMC8516910 COIS- The authors declare no competing interests. EDAT- 2021/10/16 06:00 MHDA- 2022/01/27 06:00 PMCR- 2021/10/14 CRDT- 2021/10/15 06:06 PHST- 2021/07/13 00:00 [received] PHST- 2021/09/30 00:00 [accepted] PHST- 2021/10/15 06:06 [entrez] PHST- 2021/10/16 06:00 [pubmed] PHST- 2022/01/27 06:00 [medline] PHST- 2021/10/14 00:00 [pmc-release] AID - 10.1038/s41598-021-99736-5 [pii] AID - 99736 [pii] AID - 10.1038/s41598-021-99736-5 [doi] PST - epublish SO - Sci Rep. 2021 Oct 14;11(1):20438. doi: 10.1038/s41598-021-99736-5.