Highly expressed lncRNA LOC730101 promotes lung cancer cell growth through Wnt canonical pathway.

Many long non-coding RNA (lncRNA) has recently been reported to be dysregulated and involved in the progression of non-small-cell lung cancer. However, the biological role of LOC730101 in NSCLC carcinogenesis remains unclear. In the present study, we found that LOC730101 was up-regulated in TCGA and GEO database, so were in NSCLC tissues and cell lines. Overexpression of LOC730101 prompted the proliferation of NSCLC both in vitro and in vivo while Silencing observed opposite phenomenon. Furthermore, we found that LOC730101 enhances the activity of Wnt/β-catenin signaling to promote the progression of cell cycle and ultimate promotes cell proliferation and growth. Therefore, our study may provide a better understanding of the pathogenesis of NSCLC and indicates that LOC730101 may be a potential therapeutic target in NSCLC.

Liu L ，Zhang Y ，Cao W 《-》

Upregulated lncRNA SNHG1 contributes to progression of non-small cell lung cancer through inhibition of miR-101-3p and activation of Wnt/β-catenin signaling pathway.

Cui Y ，Zhang F ，Zhu C ，Geng L ，Tian T ，Liu H ... -  《Oncotarget》

Highly expressed long non-coding RNA FOXD2-AS1 promotes non-small cell lung cancer progression via Wnt/β-catenin signaling.

Non-small cell lung cancer (NSCLC) is one of the most common and aggressive tumors around the world. Long-noncoding RNAs (lncRNAs) have been recently shown to play important roles in regulating numerous biological processes including tumor progression. However, the role of lncRNA FOXD2-AS1 in NSCLC remains unclear. In this study, we found that lncRNA FOXD2-AS1 is significantly up-regulated in NSCLC tissues. Loss- and gain-function assays revealed that FOXD2-AS1 promotes NSCLC cell growth and NSCLC tumor progression. Furthermore, we also revealed that FOXD2-AS1 modulates Wnt/β-catenin signaling in NSCLC cells. Taken together, we conclude that lncRNA FOXD2-AS1 promotes NSCLC progression though Wnt/β-catenin signaling. These results suggest that lncRNA FOXD2-AS1 might act as a novel therapeutic target for NSCLC treatment.

Rong L ，Zhao R ，Lu J 《-》

Gastric Adenocarcinoma Predictive Long Intergenic Non-Coding RNA Promotes Tumor Occurrence and Progression in Non-Small Cell Lung Cancer via Regulation of the miR-661/eEF2K Signaling Pathway.

Long non-coding RNAs (lncRNAs) play vital roles in carcinogenesis as oncogenes or tumor suppressor genes. This study explored the biological function of lncRNA gastric adenocarcinoma predictive long intergenic non-coding RNA (GAPLINC) in human non-small cell lung cancer (NSCLC). GAPLINC expression in NSCLC specimens and cell lines was detected by qRT-PCR and Western blot. The effect of GAPLINC on cell proliferation was investigated using CCK8-assay, colony formation assay, and xenograft model. The effects of GAPLINC on apoptosis and cell cycle were determined using flow cytometry. The mechanism of GAPLINC involved in NSCLC was explored using Western blot, luciferase reporter assay, and RNA fluorescence in situ hybridization. We found that GAPLINC expression was up-regulated in NSCLC tissues and cell lines. Overexpression of GAPLINC was associated with poor prognosis in patients with NSCLC. Silencing of GAPLINC significantly inhibited cell proliferation, promoted apoptosis, and induced cell cycle arrest in the G0/G1 phase. Results from xenograft transplantation showed that GAPLINC silencing inhibited the tumor growth in vivo. Interestingly, GAPLINC silencing decreased the expression of eukaryotic elongation factor-2 kinase (eEF2K) protein both in vivo and in vitro. Bioinformatic analysis and luciferase reporter confirmed that miR-661 targeted GAPLINC and eEF2K 3'-UTR and was negatively correlated with the expression of GAPLINC and eEF2K. Our findings indicate that GAPLINC promotes NSCLC tumorigenesis by regulating miR-661/eEF2K cascade and provide new insights for the pathogenesis underlying NSCLC and potential targets for therapeutic strategy.

Gu H ，Chen J ，Song Y ，Shao H ... -  《-》

High expression of long non-coding RNA SBF2-AS1 promotes proliferation in non-small cell lung cancer.

Lv J ，Qiu M ，Xia W ，Liu C ，Xu Y ，Wang J ，Leng X ，Huang S ，Zhu R ，Zhao M ，Ji F ，Xu L ，Xu K ，Yin R ... -  《JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH》