scholarly journals Down-regulated Long Noncoding RNAHOXA11-ASaffects trophoblast cell proliferation and migration by regulatingRND3andHOXA7expression in preeclampsia

2018 ◽  
Author(s):  
Yetao Xu ◽  
Dan Wu ◽  
Jie Liu ◽  
Zhonghua Ma ◽  
Bingqing Hui ◽  
...  

AbstractThe long noncoding RNAHOXA11-ASreveals abnormal expression in numerous human diseases. However, its function and biological mechanisms remain unclear in Preeclampsia (PE). In this study, we report thatHOXA11-ASwas significantly downregulated in preeclampsic placental tissues and could contribute to the occurrence and development of Preeclampsia. Silencing ofHOXA11-ASexpression could significantly suppress trophoblast cell growth and migration, whereasHOXA11-ASoverexpression facilitated cell growth in HTR-8/SVneo, JEG3 and JAR cell lines. RNA-seq analysis also indicated thatHOXA11-ASsilencing preferentially regulated numerous genes associated with cell proliferation and cell migration. Mechanistic analyses showed thatHOXA11-AScould recruit Ezh2 and Lsd1 protein, and regulateRND3mRNA expression in nucleus. In cytoplasm,HOXA11-ASmodulateHOXA7expression by sponged miR-15b-5p, thus affecting trophoblast cell proliferation. Together, these resulting data confirm that aberrant expression ofHOXA11-ASis involved in the occurrence and development of Preeclampsia, and may act as a prospective diagnosis and therapeutic target in PE.

2019 ◽  
Author(s):  
Xu Teng ◽  
Wei Huang ◽  
Hefeng Yu ◽  
Pei Wang ◽  
Weishi Li ◽  
...  

AbstractExogenous and endogenous formaldehyde (FA) plays an important role in cell growth and migration; however, its potential role in osteoblasts remains largely unclear. Cell counting kit-8 (CCK-8) and wound healing assays revealed that FA exposure at naturally occurring concentrations inhibited the proliferation and migration of mouse preosteoblast MC3T3-E1 cells. Moreover, RNA sequencing (RNA-seq) analysis revealed that FoxO1 signaling pathway components displayed distinct expression patterns upon FA exposure, reflected through significant enrichment of cell migration. In particular, FoxO1 Sirt1 and FA-induced related protein expression which were closely with cell proliferation and migration were confirmed by western blotting. The present results indicate that the FoxO1 pathway is involved in FA-induced inhibition of cell growth and migration.


2020 ◽  
pp. 096032712097512
Author(s):  
Xu Teng ◽  
Pei Wang ◽  
Tianshu Yang ◽  
Wei Huang ◽  
Hefeng Yu ◽  
...  

Exogenous and endogenous formaldehyde (FA) both play an important role in cell growth and migration; however, their potential role in osteoblasts remains largely unclear. Cell counting kit-8 (CCK-8) and wound-healing assays revealed that FA exposure at naturally occurring concentrations inhibited the proliferation and migration of mouse preosteoblast MC3T3-E1 cells. Moreover, RNA sequencing (RNA-seq) analysis revealed that FoxO1 signaling pathway components displayed distinct expression patterns upon FA exposure, reflected through significant enrichment of cell migration. In particular, FoxO1-, Sirt1-, and FA-induced protein expression, which was closely associated with cell proliferation and migration, was confirmed by western blotting. The results obtained indicated that the FoxO1 pathway is involved in FA-induced inhibition of cell growth and migration.


2021 ◽  
Author(s):  
Duan Lin can ◽  
Jiang Xiu lin ◽  
Tan Lin ◽  
Yuan Yi xiao ◽  
Wang Juan ◽  
...  

Abstract Background: Hyaluronan mediated motility receptor (also known as RHAMM) is another one of few defined hyaluronan receptors, play pivotal roles in cell growth. However, the functionof HMMR in lung adenocarcinoma remain unclear.Methods: HMMR expression was analyzed emoloyed the public databases, the prognosis of HMMR was analysis by prognoscan, KMplot and GEPIA databases. The GO and KEGG pathway was analysis by the DAVID and GSEA software. The correlation between the HMMR expression was analysis by the TIMER databases, the gene and protein networks was analysis by Genemania and STRING databases, the DNA methylation was analysis by the MethSurv and UALCAN databases. The expression of HMMR was analysis by IHC and qPCR, the function of HMMR on cell proliferation and migration was examine by the cell growth curve, clone information, transwell and wound healing assay.Results: in this study, we find that HMMR was elevated in LUAD and it’s highly expression associated with the poor prognosis and lymph node metastasis. Furthermore, the expression of HMMR was induced by hypoxia in LUAD. HMMR expression level not only positively correlation with the different immune cells, but also positively correlation with the expression of immune checkpoints related gene. Finally, depletion of HMMR significantly represses the cell growth and migration of NSCLC. We also found that the HOXB7/TMPO-AS1/Let-7b-5p axis mediated high expression of HMMR in NSCLC, depletion of TMPO-AS1 and over-expression the Let-7b-5p would result in decreased the expression of HMMR in NSCLC cells, the TMPO-AS1 was positively with the HMMR and negatively related to the Let-7b-5p in NSCLC. Overall, this study emphasized the significance of HOXB7/TMPO-AS1/Let-7b-5p axis mediated high expression of HMMR in cancer progression and Immune infiltration of LUAD.Conclusions: we demonstrated HMMR was elevated in LUAD and positively relation to poor prognosis. We find the hypoxia microenvironment and DNA hypomethylation able to up-regulation of the HMMR expression. Additionally, HMMR expression was positive with the diverse immune cell and immune regulator related gene in LUAD. Finally, we found that depletion of HMMR was inhibits the cell proliferation and migration ability of NSCLC cells. These findings suggest that HMMR could be served as a biomarker for prognosis and immune infiltration in LUAD.


2021 ◽  
Author(s):  
Duan Lin can ◽  
Jiang Xiu lin ◽  
Tan Lin ◽  
Yuan Yi xiao ◽  
Wang Juan ◽  
...  

Abstract BackgroundHyaluronan mediated motility receptor (also known as RHAMM) is another one of few defined hyaluronan receptors, play pivotal roles in cell growth. However, the relationships between HMMR and prognosis and tumor-infiltrating lymphocytes in lung adenocarcinoma remain unclear.MethodsHMMR expression was analyzed emoloyed the TIMER, GEPIA, UALCAN, CCLE databases, the prognosis of HMMR was analysis by prognoscan, KMplot and GEPIA databases. The GO and KEGG pathway was analysis by the DAVID and GSEA software. The correlation between the HMMR expression was analysis by the TIMER databases, the gene and protein networks was analysis by Genemania and STRING databases, the DNA methylation was analysis by the MethSurv and UALCAN databases, the gene mutation of HMMR was analysis by the cBioportal and COSMIC databases. The expression of HMMR was analysis by IHC and qPCR, the function of HMMR on cell proliferation and migration was examine by the cell growth curve, clone information, transwell and wound healing assay.ResultsIn this study, we find that HMMR was elevated in LUAD and it’s highly expression associated with the poor prognosis and lymph node metastasis. Furthermore, the expression of HMMR was induced by hypoxia in LUAD. HMMR expression level not only positively correlation with the different immune cells, but also positively correlation with the expression of immune checkpoints related gene, for instance, CD279, CD274, CTLA4, LAG3, PDCD1LG2, TIGIT and HAVCR2. Finally, depletion of HMMR significantly represses the cell growth and migration of NSCLC. Overall, this study emphasized the significance of HMMR in cancer progression and Immune infiltration of LUAD.ConclusionsWe demonstrated HMMR was elevated in LUAD and positively relation to poor prognosis. We find the hypoxia microenvironment and DNA hypomethylation able to up-regulation of the HMMR expression. Additionally, HMMR expression was positive with the diverse immune cell and immune regulator related gene in LUAD. Finally, we found that depletion of HMMR was inhibits the cell proliferation and migration ability of NSCLC cells. These findings suggest that HMMR could be served as a biomarker for prognosis and immune infiltration in LUAD.


2021 ◽  
Vol 22 (6) ◽  
pp. 3046
Author(s):  
Ming-Huei Chou ◽  
Hui-Ching Chuang ◽  
Yu-Tsai Lin ◽  
Ming-Hsien Tsai ◽  
Ying-Hsien Kao ◽  
...  

Patients with advanced head and neck squamous cell carcinoma (HNSCC) usually show a dismal prognosis. It is this worthwhile to develop new, effective therapeutic regimens for these patients, such as molecular targeted therapy, which is promising as an alternative or combination treatment for HNSCC. The mammalian target of rapamycin (mTOR) pathway, which plays an important role in the carcinogenesis of HNSCC, is the most frequently activated, and is thus worthy of further investigation. In this study, two human HNSCC cell lines, FaDu and SAS, were evaluated for cell growth with trypan blue staining and tumor growth using an orthotopic xenograft model. The immunohistochemical expression of mTOR in the subcutaneous xenograft model and the inhibitory effects of docetaxel on the growth and state of activation of the PI3K/mTOR pathway were also evaluated and examined by colony formation and Western blot, respectively. Cell proliferation and migration were measured by water-soluble tetrazolium salt (WST-1) and OrisTM cell migration assay, respectively. Furthermore, the effects of rapamycin and BEZ235, a phosphatidylinositol 3-kinases (PI3K) and mTOR inhibitor in combination with docetaxel or CCL20 were evaluated in the FaDu and SAS cells. The results showed that the expression of mTOR was significantly higher in the SAS and FaDu xenograft models than in the control. Docetaxel treatment significantly suppressed HNSCC cell proliferation and migration in vitro via the PI3K/mTOR/CCL-20 signaling pathway. Additionally, when administered in a dose-dependent fashion, mTOR inhibitors inhibited the growth and migration of the HNSCC cells. This combination was synergistic with docetaxel, resulting in almost complete cell growth and migration arrest. In conclusion, docetaxel significantly inhibited HNSCC cell proliferation and migration in vitro via the PI3K/mTOR/CCL-20 signaling pathway. The synergistic and additive activity of mTOR inhibitors combined with docetaxel shows potential as a new treatment strategy for HNSCC.


2020 ◽  
Author(s):  
Ni Wang ◽  
Yang Yu ◽  
Boming Xu ◽  
Chunmei Zhang ◽  
Jie Liu ◽  
...  

Abstract Background: Recently, long non-coding RNAs (lncRNAs) have been verified to have significant regulatory roles in multiple human cancer processes. Long non-coding RNA LINC00152, located on chromosome 2p11.2, was identified as an oncogenic lncRNA in various cancers. However, the biological function and molecular mechanism of LINC00152 in cholangiocarcinoma (CCA) are still unknown.Methods: Bioinformatic analysis was performed to determine LINC00152 expression levels in the CCA and normal tissues by using raw microarray data downloaded from Gene Expression Omnibus (GSE76297) and The Cancer Genome Atlas (TCGA). Quantitative reverse transcription PCR (qRT-PCR) was used to validate LINC00152 expression in the CCA tissues compared with that in the paired normal tissues. CCK8, colony formation, Edu assays, transwell assays, flow cytometry, and in vivo tumor formation assays were performed to investigate the biological function of LINC00152 on CCA cell phenotypes. RNA-seq was carried out to identify the downstream target gene which was further examined by qRT-PCR, western bolt and rescue experiments. RNA immunoprecipitation (RIP) and Chromatin immunoprecipitation (ChIP) assays were performed to reveal the factors involved in the mechanism of LINC00152 functions in CCA.Results: LINC00152 is significantly upregulated in cholangiocarcinoma. LINC00152 regulated the proliferation and migration of cholangiocarcinoma cells both in vitro and in vivo. RNA-seq revealed that LINC00152 knockdown preferentially affected genes linked with cell proliferation, cell differentiation and cell adhesion. Furthermore, mechanistic investigation validated that LINC00152 could bind EZH2 and modulate the histone methylation of promoter of leucine rich repeats and immunoglobulin like domains 1 (LRIG1), thereby affecting cholangiocarcinoma cells growth and migration.Conclusion: Taken together, these results demonstrated the significant roles of LINC00152 in cholangiocarcinoma and suggested a new diagnostic and therapeutic direction of cholangiocarcinoma.


Sign in / Sign up

Export Citation Format

Share Document