scholarly journals An in vitro and in vivo study of the role of long non-coding RNA-HOST2 in the proliferation, migration, and invasion of human glioma cells

IUBMB Life ◽  
2018 ◽  
Vol 71 (1) ◽  
pp. 93-104 ◽  
Author(s):  
Qi Wang ◽  
Zhong-Wei Zhuang ◽  
Yi-Ming Cheng ◽  
Ji-Qiang Ma ◽  
Shi-Yi Xu ◽  
...  
2020 ◽  
Author(s):  
Meichen Pan ◽  
Jingren Shi ◽  
Shangqi Yin ◽  
Huan Meng ◽  
Chaonan He ◽  
...  

Abstract Background: Glioma is the most frequent primary malignant brain tumor, characterized by high morbidity, high mortality and dismal prognosis. Numerous analyses have revealed the abnormal expression of long non-coding RNAs (lncRNAs) in glioma cells. This study aims to explore its role in glioma development and prognosis.Methods: The gene expression in cell lines were measured by qRT-PCR. The role of LINC00663 in glioma was confirmed by CCK8, EdU assay, transwell and western blot as well as by in vivo experiments. Besides, Pearson's correlation analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were also performed as needed.Results: Firstly, data from our preliminary work (NSFC NO. 81572474) showed that LINC00663 might be largely implicated in glioma. Meanwhile, LINC00663 upregulation confirmed in glioma predicted poor clinical outcomes. Functionally, LINC00663 knockdown restrained cell proliferation, migration and invasion in vitro. Mechanistic investigations validated that LINC00663 silencing decreased AKT activation in glioma cells.Conclusions: LINC00663 promotes glioma development and progression through regulating AKT pathway, suggesting LINC00663 as a probable target for glioma treatment.


2020 ◽  
Vol 40 (9) ◽  
Author(s):  
Li-li Zhou ◽  
Meng Zhang ◽  
Yan-zhen Zhang ◽  
Mei-fen Sun

Abstract Glioma is the most prevalent solid tumor in the central nervous system (CNS). Recently, it has been indicated that long non-coding RNAs (lncRNAs) substantially adjust the development of a variety of human cancers. In the present study, it was found and verified via microarray analysis that lncRNA PSMA3-AS1 exhibited a high expression in glioma tissues and cell lines. Then CCK-8, 5-Ethynyl-2′-deoxyuridine (EdU) staining, plate clone assay, Transwell assay, Western blotting and nude mouse model were adopted to verify PSMA3-AS1’s effects on glioma. Knockdown of PSMA3-AS1 inhibited the migration, proliferation and invasion of glioma cells in vivo and in vitro. Besides, PSMA3-AS1 bound to miR-302a-3p directly reduced the expression of miR-302a-3p, thus functioning as an endogenous sponge confirmed by luciferase reporter assay and bioinformatics analysis. PSMA3-AS1 knockdown remarkably enhanced the role of miR-302a-3p overexpression in cell behaviors in glioma. Moreover, these assays also confirmed that RAB22A was a target of miR-302a-3p. In this research, therefore, the PSMA3-AS1/miR-302a-3p/RAB22A pathway regulatory axis may be revealed in the pathogenesis of glioma, and PSMA3-AS1 can be used as an underlying target for the treatment and prognosis of glioma.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Liting You ◽  
Qian Wu ◽  
Zhaodan Xin ◽  
Huiyu Zhong ◽  
Juan Zhou ◽  
...  

Abstract Background miR-124-3p can inhibit integrin β3 (ITGB3) expression to suppress the migration and invasion of gastric cancer (GC), and in the process lncRNA HOXA11-AS may act as a molecular sponge. Methods Luciferase reporter assay was conducted to verify the binding of miR-124-3p and HOXA11-AS. RT-PCR and western blot were performed to detect the expression of HOXA11-AS, miR-124-3p and ITGB3 in GC tissues and cells. Gene silence and overexpression experiments as well as cell migration and invasion assays on GC cell lines were performed to determine the regulation of molecular pathways, HOXA11-AS/miR-124-3p/ITGB3. Furthermore, the role of HOXA11-AS in GC was confirmed in mice models. Results We found HOXA11-AS is up-regulated in GC tissues and can bind with miR-124-3p. Through overexpression/knockdown experiments and function tests in vitro, we demonstrated HOXA11-AS can promote ITGB3 expression by sponging miR-124-3p, consequently enhance the proliferation, migration, and invasion of GC cells. Meanwhile, we validated that HOXA11-AS promotes migration and invasion of GC cells via down-regulating miR-124-3p and up-regulating ITGB3 in vivo. Conclusions We demonstrated that lncRNA HOXA11-AS can increase ITGB3 expression to promote the migration and invasion of gastric cancer by sponging miR-124-3p. Our results suggested that HOXA11-AS may reasonably serve as a promising diagnostic biomarker and a potential therapeutic target of GC.


2021 ◽  
Vol 16 (1) ◽  
pp. 1-13
Author(s):  
Weiwei Liu ◽  
Dongmei Yao ◽  
Bo Huang

Abstract Cervical cancer (CC) is a huge threat to the health of women worldwide. Long non-coding RNA plasmacytoma variant translocation 1 gene (PVT1) was proved to be associated with the development of diverse human cancers, including CC. Nevertheless, the exact mechanism of PVT1 in CC progression remains unclear. Levels of PVT1, microRNA-503 (miR-503), and ADP ribosylation factor-like protein 2 (ARL2) were measured by quantitative reverse transcription-polymerase chain reaction or western blot assay. 3-(4,5)-Dimethylthiazole-2-y1)-2,5-biphenyl tetrazolium bromide (MTT) and flow cytometry were used to examine cell viability and apoptosis, respectively. For migration and invasion detection, transwell assay was performed. The interaction between miR-503 and PVT1 or ARL2 was shown by dual luciferase reporter assay. A nude mouse model was constructed to clarify the role of PVT1 in vivo. PVT1 and ARL2 expressions were increased, whereas miR-503 expression was decreased in CC tissues and cells. PVT1 was a sponge of miR-503, and miR-503 targeted ARL2. PVT1 knockdown suppressed proliferation, migration, and invasion of CC cells, which could be largely reverted by miR-503 inhibitor. In addition, upregulated ARL2 could attenuate si-PVT1-mediated anti-proliferation and anti-metastasis effects on CC cells. Silenced PVT1 also inhibited CC tumor growth in vivo. PVT1 knockdown exerted tumor suppressor role in CC progression via the miR-503/ARL2 axis, at least in part.


Pathobiology ◽  
2021 ◽  
pp. 1-12
Author(s):  
Ling Zhou ◽  
Xiao-li Xu

<b><i>Background:</i></b> Emerging research has demonstrated that long non-coding RNAs (lncRNAs) attach great importance to the progression of cervical cancer (CC). LncRNA ARAP1-AS1 was involved in the development of several cancers; however, its role in CC is far from being elucidated. <b><i>Methods:</i></b> Real-time PCR (RT-PCR) was employed to detect ARAP1-AS1 and miR-149-3p expression in CC samples. CC cell lines (HeLa and C33A cells) were regarded as the cell models. The biological effect of ARAP1-AS1 on cancer cells was measured using CCK-8 assay, colony formation assay, flow cytometry, Transwell assay and wound healing assay in vitro, and subcutaneous xenotransplanted tumor model and tail vein injection model in vivo. Furthermore, interactions between ARAP1-AS1 and miR-149-3p, miR-149-3p and POU class 2 homeobox 2 (POU2F2) were determined by bioinformatics analysis, qRT-PCR, Western blot, luciferase reporter and RNA immunoprecipitation assay, respectively. <b><i>Results:</i></b> The expression of ARAP1-AS1 was enhanced in CC samples, while miR-149-3p was markedly suppressed. Additionally, ARAP1-AS1 overexpression enhanced the viability, migration, and invasion of CC cells. ARAP1-AS1 downregulated miR-149-3p via sponging it. ARAP1-AS1 and miR-149-3p exhibited a negative correlation in CC samples. On the other hand, ARAP1-AS1 enhanced the expression of POU2F2, which was validated as a target gene of miR-149-3p. <b><i>Conclusion:</i></b> ARAP1-AS1 was abnormally upregulated in CC tissues and indirectly modulated the POU2F2 expression via reducing miR-149-3p expression. Our study identified a novel axis, ARAP1-AS1/miR-149-3p/POU2F2, in CC tumorigenesis.


2014 ◽  
Vol 120 (2) ◽  
pp. 273-281 ◽  
Author(s):  
Chun-Yuan Cheng ◽  
Ying-Erh Chou ◽  
Chung-Po Ko ◽  
Shun-Fa Yang ◽  
Shu-Ching Hsieh ◽  
...  

Data in Brief ◽  
2016 ◽  
Vol 9 ◽  
pp. 667-672 ◽  
Author(s):  
Gong-Jhe Wu ◽  
Chien-Ju Lin ◽  
Yung-Wei Lin ◽  
Ruei-Ming Chen

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