PMID- 24427326 OWN - NLM STAT- MEDLINE DCOM- 20140905 LR - 20220318 IS - 1936-2625 (Electronic) IS - 1936-2625 (Linking) VI - 7 IP - 1 DP - 2014 TI - MiR-19a is correlated with prognosis and apoptosis of laryngeal squamous cell carcinoma by regulating TIMP-2 expression. PG - 56-63 AB - MiRNAs are small, noncoding RNA molecules that act as posttranscriptional regulators of gene expression and function as important regulators in cancer-related processes. The miR-19a is overexpressed in various cancers and has been causally related to cellular proliferation and growth. To determine whether miR-19a plays a role in laryngeal squamous cell carcinoma (LSCC), we used quantitative real time PCR to detect miR-19a expression in LSCC tissues. We found that miR-19a is overexpressed in LSCC and correlated with neck nodal metastasis, poor differentiation and advanced stage. Statistical analysis suggests that higher level of miR-19a was associated with reduced overall survival. In vitro functional study showed that inhibition of miR-19a by antisense oligonucleotides (ASO) led to apoptosis and reduction of cell proliferation in LSCC cells. Furthermore, growth of LSCC xenograft tumors was significantly suppressed by repeated injection of ASO-miR-19a lentivirus. The TUNEL stain and transmission electron microscopy also detected increased apoptotic cells in ASO-miR-19a treated LSCC xenografts. In addition, both realtime PCR and western blot showed ASO-miR-19a can upregulate TIMP-2 expression and this suggests miR-19a is related with TIMP-2 pathway in LSCC cells. Taken together, these data suggest that miR-19a plays an oncogenic role in the progression of LSCC, and may serve as a biomarker or therapeutic target for patients with LSCC. FAU - Wu, Tian-Yi AU - Wu TY AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Zhang, Tian-Hong AU - Zhang TH AD - Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Qu, Ling-Mei AU - Qu LM AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Feng, Jia-Peng AU - Feng JP AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Tian, Lin-Li AU - Tian LL AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Zhang, Bing-Hui AU - Zhang BH AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Li, Dan-Dan AU - Li DD AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Sun, Ya-Nan AU - Sun YN AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. FAU - Liu, Ming AU - Liu M AD - Department of Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Harbin Medical University Harbin, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131215 PL - United States TA - Int J Clin Exp Pathol JT - International journal of clinical and experimental pathology JID - 101480565 RN - 0 (MIRN19 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (TIMP2 protein, human) RN - 127497-59-0 (Tissue Inhibitor of Metalloproteinase-2) SB - IM MH - Animals MH - Apoptosis/genetics MH - Blotting, Western MH - Carcinoma, Squamous Cell/*genetics/metabolism/pathology MH - Gene Expression Regulation, Neoplastic/*genetics MH - Heterografts MH - Humans MH - In Situ Nick-End Labeling MH - Kaplan-Meier Estimate MH - Laryngeal Neoplasms/*genetics/metabolism/pathology MH - Mice MH - Mice, Inbred BALB C MH - MicroRNAs/*genetics MH - Microscopy, Electron, Transmission MH - Prognosis MH - Real-Time Polymerase Chain Reaction MH - Tissue Inhibitor of Metalloproteinase-2/*biosynthesis/genetics PMC - PMC3885460 OTO - NOTNLM OT - LSCC OT - TIMP-2 OT - apoptosis OT - miR-19a EDAT- 2014/01/16 06:00 MHDA- 2014/09/06 06:00 PMCR- 2013/12/15 CRDT- 2014/01/16 06:00 PHST- 2013/10/25 00:00 [received] PHST- 2013/11/27 00:00 [accepted] PHST- 2014/01/16 06:00 [entrez] PHST- 2014/01/16 06:00 [pubmed] PHST- 2014/09/06 06:00 [medline] PHST- 2013/12/15 00:00 [pmc-release] PST - epublish SO - Int J Clin Exp Pathol. 2013 Dec 15;7(1):56-63. eCollection 2014.