Next generation sequencing of expression and differentially expression of miRNAs, lncRNAs and circRNAs in gastric adenocarcinoma
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA929493 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:To systematically elaborate the transcriptomic landscape and complicated mechanism of gastric adenocarcinoma, we performed whole-transcriptome sequencing to screen miRNA, lncRNA, circRNA and mRNA expression profiles and the key functional ncRNAs were annotated.
2023-02-01 | GSE224056 | GEO
Project description:F. nucleatum is an opportunistic pathogen that usually colonize in oral cavity, thereby closely associated with the development of periodontitis.However, the immune regulation mechanism of F. nucleatum to macrophage’s function in disease progress has not been clearly elucidated.Long non-coding RNA (lncRNA) and circular RNA (circRNA) were discovered to play an important role in regulating occurrence and progression of many diseases and identified as effective biomarkers for diagnosis and prognosis of several diseases. In the present study, the expression profiles of mRNA, lncRNA and circRNA associated with F. nucleatum infection were investigated for the first time. The results revealed that the expressions of 375 mRNAs, 64 lncRNAs, and 180 circRNAs were altered during F. nucleatum infection. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) biological pathway analysis showed that the target genes were mainly involved in the MAPK signaling pathway, Toll-like receptor signaling pathway, NF-kappa B signaling pathway and apoptosis. Conclusions: The present study firstly provides the expression profiles of mRNAs, lncRNAs and circRNAs during F. nucleatum infection, and describes a novel perspective on the potential roles of lncRNAs and circRNAs underlying the pathogenesis mechanism of F. nucleatum infection.
2021-12-13 | GSE190606 | GEO
Project description:Intensive research in past two decades has uncovered the presence and importance of noncoding RNAs (ncRNAs), which includes microRNAs (miRs) and long ncRNAs (lncRNAs). These two classes of ncRNAs interact to a certain extent, as some lncRNAs bind to miRs to sequester them. Such lncRNAs are collectively called 'competing endogenous RNAs' or 'miRNA sponges'. In this study, we screened for lncRNAs that may act as miRNA sponges using the publicly available data sets and databases. To uncover the roles of miRNA sponges, loss-of-function experiments were conducted, which revealed the biological roles as miRNA sponges. LINC00324 is important for the cell survival by binding to miR-615-5p leading to the de-repression of its target BTG2 LOC400043 controls several biological functions via sequestering miR-28-3p and miR-96-5p, thereby changing the expressions of transcriptional regulators. Finally, we also screened for circular RNAs (circRNAs) that may function as miRNA sponges. The results were negative at least for the selected circRNAs in this study. In conclusion, miRNA sponges can be identified by applying a series of bioinformatics techniques and validated with biological experiments. The expressions of miRs were examined in HEK-293 cells that were LINC00324- or LOC400043-silenced using siRNA.
2016-07-06 | E-GEOD-73689 | biostudies-arrayexpress
Project description:Intensive research in past two decades has uncovered the presence and importance of noncoding RNAs (ncRNAs), which includes microRNAs (miRs) and long ncRNAs (lncRNAs). These two classes of ncRNAs interact to a certain extent, as some lncRNAs bind to miRs to sequester them. Such lncRNAs are collectively called 'competing endogenous RNAs' or 'miRNA sponges'. In this study, we screened for lncRNAs that may act as miRNA sponges using the publicly available data sets and databases. To uncover the roles of miRNA sponges, loss-of-function experiments were conducted, which revealed the biological roles as miRNA sponges. LINC00324 is important for the cell survival by binding to miR-615-5p leading to the de-repression of its target BTG2 LOC400043 controls several biological functions via sequestering miR-28-3p and miR-96-5p, thereby changing the expressions of transcriptional regulators. Finally, we also screened for circular RNAs (circRNAs) that may function as miRNA sponges. The results were negative at least for the selected circRNAs in this study. In conclusion, miRNA sponges can be identified by applying a series of bioinformatics techniques and validated with biological experiments. The expressions of miRs were examined in HEK-293, HUVEC and Hs68 cells.
2016-07-06 | E-GEOD-73690 | biostudies-arrayexpress
Project description:Differentially expressed SE-lncRNAs in lung adenocarcinoma
| PRJNA805532 | ENA
Project description:Intensive research in past two decades has uncovered the presence and importance of noncoding RNAs (ncRNAs), which includes microRNAs (miRs) and long ncRNAs (lncRNAs). These two classes of ncRNAs interact to a certain extent, as some lncRNAs bind to miRs to sequester them. Such lncRNAs are collectively called 'competing endogenous RNAs' or 'miRNA sponges'. In this study, we screened for lncRNAs that may act as miRNA sponges using the publicly available data sets and databases. To uncover the roles of miRNA sponges, loss-of-function experiments were conducted, which revealed the biological roles as miRNA sponges. LINC00324 is important for the cell survival by binding to miR-615-5p leading to the de-repression of its target BTG2 LOC400043 controls several biological functions via sequestering miR-28-3p and miR-96-5p, thereby changing the expressions of transcriptional regulators. Finally, we also screened for circular RNAs (circRNAs) that may function as miRNA sponges. The results were negative at least for the selected circRNAs in this study. In conclusion, miRNA sponges can be identified by applying a series of bioinformatics techniques and validated with biological experiments. Using HEK-293 cells, we performed microarray experiments (n=2) for siRNA-mediated silencing of LINC00324 and LOC40043.
2016-07-06 | E-GEOD-73683 | biostudies-arrayexpress
Project description:Oral carcinogenesis is a multi-step process involving normal mucosa progressing to oral precancerous lesions and finally to oral squamous cell carcinoma (OSCC). This complex process encompasses various molecules, including non-coding RNAs (ncRNAs). In this study, we performed whole-transcriptome analyses on adjacent normal tissues, oral leukoplakia tissues, and OSCC tissues, with the goal of identifying key differentially expressed circRNAs, lncRNAs, miRNAs, and mRNAs associated with different stages of oral carcinogenesis. In our study, numerous differentially expressed circRNAs, lncRNAs, miRNAs, and mRNAs were identified in adjacent normal, oral leukoplakia, and OSCC tissues. Subsequently, we constructed two regulatory competitive endogenous RNA (ceRNA) networks and identified some potential critical molecules involved in oral carcinogenesis. In conclusion, based on the whole-transcriptome analyses, we mapped the molecular feathers at RNA level during the process of oral carcinogenesis and revealed certain ncRNAs with great research potential.
2023-10-26 | GSE246050 | GEO
Project description:Long noncoding RNAs (LncRNAs) are an important class if pervasive genes involved in a variety of biological functions. LncRNAs have been recently implicated as having oncogenic and tumor suppressor roles. To further investigate the function of lncRNA in gastric cancer, we use lncRNA microarray to describe LncRNAs profiles in 6 pairs of human gastric adenocarcinoma and the corresponding adjacent nontumorous tissues. The experimental samples are divided into two groups(normal and tumor) to compare lncRNA expression profiling of those
2013-12-09 | E-GEOD-53137 | biostudies-arrayexpress
Project description:Circular RNAs (circRNAs) play important roles in tumorigenesis, including lung cancer. However, the expression profile and clinical value of circRNAs in lung adenocarcinoma remains unclear. This study aimed to establish the circular RNA expression profile of lung adenocarcinoma tissue and determine its potential diagnostic and prognostic value.
2023-03-09 | GSE146689 | GEO
Project description:Cross-talk between competitive endogenous RNAs (ceRNAs) may play a critical role in revealing potential mechanisms of tumor development and physiology. Glioblastoma is the most common type of malignant primary brain tumor, and the mechanisms of tumor genesis and development in glioblastoma are unclear. Here, to investigate the role of non-coding RNAs and the ceRNA network in glioblastoma, we performed paired-end RNA sequencing and microarray analyses to obtain the expression profiles of mRNAs, lncRNAs circRNAs and miRNAs. We identified that the expression of 501 lncRNAs, 1789 mRNAs, 2038 circRNAs and 143 miRNAs were often altered between glioblastoma and matched normal brain tissue. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed on these differentially expressed mRNAs and miRNA-mediated target genes of lncRNAs and circRNAs. Furthermore, we used a multi-step computational framework and several bioinformatics methods to construct a ceRNA network combining mRNAs, miRNAs, lncRNAs and circRNA, based on co-expression analysis between the differentially expressed RNAs. We identified that plenty of lncRNAs, CircRNAs and their downstream target genes in the ceRNA network are related to glutamatergic synapse, suggesting that glutamate metabolism is involved in glioma biological functions. Our results will accelerate the understanding of tumorigenesis, cancer progression and even therapeutic targeting in glioblastoma. We hope to inspire researchers to study the role of non-coding RNAs in glioblastoma.
2016-08-30 | GSE86202 | GEO