scholarly journals LncRNA H19 induced by helicobacter pylori infection promotes gastric cancer cell growth via enhancing NF-κB-induced inflammation

2019 ◽  
Vol 16 (1) ◽  
Author(s):  
Yifeng Zhang ◽  
Jin Yan ◽  
Chao Li ◽  
Xiaoyong Wang ◽  
Yu Dong ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Cell Growth ◽  
Migration And Invasion ◽  
Cancer Cell Growth ◽  
Protein Levels ◽  
Non Coding Rna ◽  
Healthy Donors ◽  
H Pylori ◽  
Long Non Coding Rna

Abstract Background The aim of this study was to investigate the role of long non-coding RNA (lncRNA) H19 in gastric cancer (GC) with Helicobacter pylori (H. pylori). Methods H19 expression in peripheral blood from H. pylori+/− GC patients and healthy donors (control) as well as in GC tissues and cells were detected by qRT-PCR. Cell proliferation was evaluated by CCK-8 assay. Cell migration and invasion were evaluated by Transwell assay. The levels of pro-inflammatory cytokines were determined by ELISA. The protein levels of IκBα, p-IκBα and p65 were determined by western blotting. Results H19 expression was upregulated in H. pylori-infected GC tissues and cells. Furthermore, H. pylori promoted GC cell viability, migration, invasion and inflammatory response. Moreover, H19 overexpression promoted the proliferation, migration and invasion of H. pylori-infected GC cells via enhancing NF-κB-induced inflammation. Conclusions LncRNA H19 promotes H. pylori-induced GC cell growth via enhancing NF-κB-induced inflammation.

Silencing of Long Non-Coding RNA Myocardial Infarction-Associated Transcript Suppresses Progression of Gastric Cancer

2019 ◽  
Vol 9 (5) ◽  
pp. 637-645
Author(s):  
Lei Wang ◽  
Qi Hu ◽  
Feng Gu
Keyword(s):  
Gastric Cancer ◽  
G1 Phase ◽  
Migration And Invasion ◽  
Protein Levels ◽  
Cycle Arrest ◽  
Non Coding Rna ◽  
Cox 2 ◽  
Cell Arrest ◽  
Long Non Coding Rna

Background: Long noncoding RNAs (lncRNAs) have been consistently demonstrated to be involved in gastric cancer (GC) as either tumor oncogenes or tumor suppressors. However, the detailed role of MIAT in GC remains poorly understood. Methods: The expression of MIAT in GC tissues was measured by In situ hybridization (ISH) assay. Cell proliferation, apoptosis, cycle, migration and invasion assays were performed to analyze the biological functions of MIAT in GC cells. Besides, western blotting was used to evaluate the role of MIAT in the expressions of P16, COX-2 and MMP-9. Results: In the present study, we identified that MIAT was up-regulated in GC tissues. Furthermore, silencing MIAT significantly suppressed GC cells proliferation, migration and invasion, promoted GC cells apoptosis, and induced GC cells cycle arrest in G1 phase. Additionally, knockdown of MIAT notably up-regulated the protein level of P16 and down-regulated the protein levels of COX-2 and MMP-9. Conclusion: These observations imply that silencing MIAT inhibits the proliferation, migration and invasion, promotes apoptosis, and induces cell arrest in G1 phase, partially through up-regulating the expression level of P16 and down-regulating the expression levels of COX-2 and MMP-9, indicating that MIAT may a novel biomarker and therapeutic target for GC.

scholarly journals Long non-coding RNA XIST promotes cell growth and invasion through regulating miR-497/MACC1 axis in gastric cancer

Oncotarget ◽  
2016 ◽  
Vol 8 (3) ◽  
pp. 4125-4135 ◽  
Author(s):  
Lei Ma ◽  
Yongjian Zhou ◽  
Xiaojun Luo ◽  
Hai Gao ◽  
Xubin Deng ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cell Growth ◽  
Non Coding Rna ◽  
Long Non Coding Rna

scholarly journals Transcriptome Analysis of the Inhibitory Effect of Astaxanthin on Helicobacter pylori-Induced Gastric Carcinoma Cell Motility

Marine Drugs ◽  
2020 ◽  
Vol 18 (7) ◽  
pp. 365 ◽  
Author(s):  
Suhn Hyung Kim ◽  
Hyeyoung Kim
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Gastric Carcinoma ◽  
Cell Motility ◽  
Cancer Progression ◽  
Migration And Invasion ◽  
Pcr Analysis ◽  
Human Gastric Cancer ◽  
Gastric Carcinoma Cell ◽  
H Pylori

Helicobacter pylori (H. pylori) infection promotes the metastasis of gastric carcinoma cells by modulating signal transduction pathways that regulate cell proliferation, motility, and invasion. Astaxanthin (ASTX), a xanthophyll carotenoid, is known to inhibit cancer cell migration and invasion, however the mechanism of action of ASTX in H. pylori-infected gastric epithelial cells is not well understood. To gain insight into this process, we carried out a comparative RNA sequencing (RNA-Seq) analysis of human gastric cancer AGS (adenocarcinoma gastric) cells as a function of H. pylori infection and ASTX administration. The results were used to identify genes that are differently expressed in response to H. pylori and ASTX. Gene ontology (GO) analysis identified differentially expressed genes (DEGs) to be associated with cell cytoskeleton remodeling, motility, and/or migration. Among the 20 genes identified, those encoding c-MET, PI3KC2, PLCγ1, Cdc42, and ROCK1 were selected for verification by real-time PCR analysis. The verified genes were mapped, using signaling networks contained in the KEGG database, to create a signaling pathway through which ASTX might mitigate the effects of H. pylori-infection. We propose that H. pylori-induced upregulation of the upstream regulator c-MET, and hence, its downstream targets Cdc42 and ROCK1, is suppressed by ASTX. ASTX is also suggested to counteract H. pylori-induced activation of PI3K and PLCγ. In conclusion, ASTX can suppress H. pylori-induced gastric cancer progression by inhibiting cytoskeleton reorganization and reducing cell motility through downregulation of c-MET, EGFR, PI3KC2, PLCγ1, Cdc42, and ROCK1.

scholarly journals Long non-coding RNA DANCR, a prognostic indicator, promotes cell growth and tumorigenicity in gastric cancer

Tumor Biology ◽  
2017 ◽  
Vol 39 (6) ◽  
pp. 101042831769979 ◽  
Author(s):  
Yan-Ping Hao ◽  
Jing-Hui Qiu ◽  
Dong-Bo Zhang ◽  
Cheng-Gong Yu
Keyword(s):  
Gastric Cancer ◽  
Cell Growth ◽  
Prognostic Indicator ◽  
Non Coding Rna ◽  
Long Non Coding Rna

scholarly journals The pseudogene-derived long non-coding RNA SFTA1P suppresses cell proliferation, migration, and invasion in gastric cancer

2018 ◽  
Vol 38 (2) ◽  
Author(s):  
Hongwei Ma ◽  
Tianshi Ma ◽  
Miao Chen ◽  
Zigui Zou ◽  
Zhihong Zhang
Keyword(s):  
Gastric Cancer ◽  
Cell Proliferation ◽  
Human Cancer ◽  
Current Evidence ◽  
Migration And Invasion ◽  
Strongly Correlated ◽  
Normal Tissues ◽  
Advanced Tumor ◽  
Non Coding Rna ◽  
Long Non Coding Rna

Pseudogenes were once regarded as transcriptionally inactive and without specific molecular function. However, current evidence shows that pseudogene-derived long non-coding RNAs (lncRNAs) may be crucial regulators of human cancer development, including gastric cancer (GC). In the present study, we report that a pseudogene-derived lncRNA named surfactant associated 1, pseudogene (SFTA1P), which is 693-nt long, was significantly down-regulated in GC tissues compared with that in the adjacent normal tissues. In addition, decreased SFTA1P expression was strongly correlated with advanced tumor lymph node metastasis (TNM) stage, larger tumor size, lymphatic metastasis, and poor prognosis of patients with GC. Moreover, gain-of-function experiments revealed that the overexpression of SFTA1P inhibits cell proliferation, migration, and invasion, thus verifying the tumor inhibitory role of SFTA1P in GC. Furthermore, we investigated the potential action mechanism of SFTA1P. Our results showed that down-regulation of SFTA1P may be associated with decreased TP53 expression. In summary, our work suggests that the pseudogene-derived lncRNA SFTA1P functions as a tumor suppressor in GC and thus may act as a potential diagnostic and therapeutic target of GC.

scholarly journals Long Non-coding RNA AK025387 Promotes Cell Migration and Invasion of Gastric Cancer

2020 ◽  
Vol 10 ◽  
Author(s):  
Yi-Yuan Sun ◽  
Hui Zhang ◽  
Ran-Ran Ma ◽  
Guo-Hao Zhang ◽  
Ya-Ru Tian ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cell Migration ◽  
Migration And Invasion ◽  
Cell Migration And Invasion ◽  
Non Coding Rna ◽  
Long Non Coding Rna
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