CircRNA vaccines
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA912726 | ENA |
REPOSITORIES: ENA
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2021-03-02 | E-MTAB-8799 | biostudies-arrayexpress
Project description:Many studies have demonstrated the importance of circRNA in regulating gene expression through functioning as microRNA sponges. However, the roles of circRNA-protein interaction are not fully understood. Importantly, how circRNA-protein interaction contributes the progression of pancreatic ductal adenocarcinoma is largely unexplored. Therefore, RNA Pull down assay for investigating RNA-protein interaction was performed in PANC-1 cells.
2022-02-15 | PXD015048 | Pride
Project description:To study the plasmablast response to influenza vaccines We want to test and see that LAIV, TIV and ID TIV induced different plasmablast response We take peripheral plasmablast and test its response to influenza vaccines at day 7 after vaccination. This array data set is for day 0 (before vaccines)
2016-07-01 | E-GEOD-62110 | biostudies-arrayexpress
Project description:Circular RNAs (circRNAs), a noncoding RNA class originating from alternative splicing, are highly abundant in neural tissues and were shown to regulate gene expression e.g. by interacting with microRNAs and RNA-binding proteins. Neuroblastoma is an embryonal neoplasia, which arises from undifferentiated neural crest cells. Here, we aimed to explore, whether circRNAs influence the pathogenesis of high-risk neuroblastoma. We performed whole-transcriptome sequencing of 104 primary neuroblastoma samples of all risk-groups and identified 5,203 unique circRNAs involving 2,302 genes. Candidate circRNA expression did not correlate with host gene expression, indicating independent regulatory mechanisms. circRNAs were significantly downregulated in the MYCN-amplified high-risk tumors. These findings were independently reproduced in a tetracycline-inducible MYCN-overexpression system based on a non MYCN-amplified neuroblastoma cell line, suggesting that MYCN drives this global circRNA repression. We identified the RNA helicase DHX9 as a mediator of this global suppressive effect of MYCN on circRNAs. Comparing our RNA sequencing data with other cancers and controls revealed a circRNA subset specifically upregulated in neuroblastoma that included a circRNA derived from the ARID1A tumor suppressor gene. Specific circARID1A knockdown resulted in reduced proliferation, cell numbers and viability, prompted apoptosis and induced a differentiated phenotype. Neither knockdown, nor overexpression of circARID1A influenced ARID1A mRNA and protein levels significantly. To dissect the potential mode of function, we performed a pulldown assay with subsequent mass spectrometry. We identified the RNA-binding protein KHSRP as an interaction partner that participates in the mechanism of action of circARID1A. In summary, this study highlights an important role of circRNAs in neuroblastoma biology and may establish this RNA class as a future therapeutic target and biomarker.
2023-04-06 | PXD026053 | Pride
Project description:This SuperSeries is composed of the SubSeries listed below.
2023-12-31 | GSE221087 | GEO
Project description:Circular RNA (circRNA) has recently gained attention for its emerging biological activities, relevance to disease, and potential as biomarkers. Furthermore, the growing prominence of RNA vaccines has brought circRNAs into the spotlight as a promising alternative modality due to their enhanced stability compared to linear RNA. Nevertheless, sequencing circRNAs has presented challenges. In this context, we introduce a novel circRNA sequencing method called Induro-RT mediated circRNA-sequencing (IMCR-seq), which relies on a group II intron reverse transcriptase with robust rolling circle reverse transcription activity. The IMCR-seq protocol eliminates the need for conventional circRNA enrichment methods such as rRNA depletion and RNaseR digestion yet achieved the highest circRNA enrichment and detected 6-1000 times more circRNAs for the benchmarked human samples compared to other methods. IMCR-seq is applicable to any organism, capable of detecting circRNAs of more than 7,000 nucleotides, and is effective using as little as 10 ng of total RNA. These enhancements render IMCR-seq suitable for clinical samples, including disease tissues and liquid biopsies. To demonstrate IMCR-seq's clinical relevance, we applied it to lung tumor tissue and plasma samples from a healthy individual and a lung cancer patient and detected cancer-specific circRNAs as potential biomarkers. In summary, IMCR-seq presents an efficient and versatile circRNA sequencing method with high potential for research and clinical applications.
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