Genome-wide map of m6A circRNAs identified in mice model of severe acute pancreatitis
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ABSTRACT:
PROVIDER: PRJNA725148 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR14324600_1.fastq.gz | Fastqsanger.gz | |||
| SRR14324600_2.fastq.gz | Fastqsanger.gz | |||
| SRR14324601_1.fastq.gz | Fastqsanger.gz | |||
| SRR14324601_2.fastq.gz | Fastqsanger.gz | |||
| SRR14324602_1.fastq.gz | Fastqsanger.gz |
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Project description:Severe acute pancreatitis (SAP) is the most serious type of pancreatitis with high morbidity and mortality. The underlying pathophysiological mechanism of SAP is complicated and lacking in effective therapeutic options in clinic. In recent years, circular RNAs (circRNAs) are found to be N6-methyladenosine (m6A)-modified and m6A modification of circRNAs plays important roles in physiological and pathological processes. However, the role of m6A modification of circRNAs in SAP remains unknown. Here, we aim to identify differentially expressed m6A circRNAs in SAP and to determine their biological significance and potential mechanisms in SAP. Firstly, we identified 903 m6A peaks that distribute on 781 circRNAs in SAP and control groups. Among them, 57 circRNAs with differentially expressed m6A peaks were identified, of which 32 were upregulated and 25 were downregulated. The total m6A level of circRNAs was reduced compared with control group. Moreover, the function analysis of these m6A circRNAs in SAP found that some important pathways involved in the pathogenesis of SAP, such as protein digestion and regulation of autophagy. In m6A circRNA-microRNA networks, several important miRNAs involved in the occurrence and development of SAP were found to bind to these m6A circRNAs potentially, such as miR-24-3p, miR-26a, miR-92b, miR-216b, miR-324-5p and miR-762. Notably, ALKBH5 was found to be upregulated in SAP. In conclusion, these results demonstrated that m6A modification of circRNAs was widely existed and may play important roles in the pathogenesis of SAP. Our findings provide novel insights regarding understanding the pathophysiological mechanism of SAP and seeking new therapeutic targets for SAP.
2021-11-01 | GSE173298 | GEO
Project description:Severe acute pancreatitis (SAP) is the most serious type of pancreatitis with high morbidity and mortality. The underlying mechanism behind SAP pathogenesis is complex and remains elusive. In the present study, next-generation RNA sequencing was utilized to identify circRNA transcripts in the pancreatic tissues from three SAP mice and three matched normal tissues. Our results discovered that 56 circRNAs were differently expressed in SAP compared with normal control. Our findings may provide novel insights for pathophysiological mechanism of SAP and offer novel targets for SAP.
2020-02-19 | GSE139173 | GEO
Project description:Purpose: The purpose of this study was to compare the hepatic transcriptome in the control group, acute pancreatitis, and severe acute pancreatitis, in order to identify metabolic gene changes during pancreatitis. Methods: 6-week Balb/c mice were subjected to AP (caerulein), SAP (caerulein and LPS) and control (saline), and mice liver tissues were harvested at 24 hours for RNA preparation (n=8 each group). Results: Among 11952 mapped genes, 8977 differentially expressed genes were identified by RNA-seq, including 351 genes induced in AP compare to Control and 5249 genes down regulated in SAP compare to AP. The genes up regulated were mainly related to fatty acid oxidation and ketone body synthesis especially Cpt2 and Acadvl, while genes that down regulated were associated with energy metabolism and inflammation. The overlap of two gene sets were 96 genes that involved in fatty acid metabolism. Conclusions: Our study revealed that in AP, genes associated with ketone body synthesis are upregulated in liver, in SAP, fatty acid oxidation related genes are downregulated in liver. Our data revealed the crosstalk between pancreas and liver, illustrated the difference of metabolism in AP and SAP.
2022-04-06 | GSE151927 | GEO
Project description:Hepatic transcriptome analysis of control, acute pancreatitis and severe acute pancreatitis mice
| PRJNA637754 | ENA
Project description:Severe acute pancreatitis (SAP) is a critical disease, often complicated with multiple organ dysfunction, which seriously endangeres the life safety of patients. Previous studies have shown that cGAS-STING signaling pathway is significantly activated in mice with severe acute pancreatitis. In this study, we studied the gene expression in different tissues of normal mice and SAP mice to understand the differentially expressed genes and find the downstream genes of cGAS-STING signaling pathway.
2023-11-01 | GSE244335 | GEO
Project description:Purpose: The purpose of this study was to compare the hepatic transcriptome in the control group and severe acute pancreatitis, in order to identify metabolic gene changes during pancreatitis. Methods: 6-week Balb/c mice were subjected to control (Saline*12) and SAP (caerulein *12), and mice liver tissues were harvested at 24 hours for RNA preparation (n=6 each group). Results: Among 18257 mapped genes, 3639 differentially expressed genes were identified by RNA-seq, including 1714 genes induced in SAP compare to Control and 1892 genes down regulated in SAP compare to Control. The genes up regulated were mainly related to immune response and ER stress, while genes that down regulated were associated with fatty acids oxidation and oxidative phosphorylation. Conclusions: Our study revealed that in SAP, genes associated with immune response are upregulated in liver, fatty acid oxidation related genes are downregulated in liver. Our data revealed the crosstalk between pancreas and liver, illustrated the change of liver metabolism in SAP.
2022-04-06 | GSE183158 | GEO
Project description:BACKGROUND:Hypoxia mediated pulmonary hypertension (HPH) is a lethal disease and lacks effective therapy. CircRNAs play significant roles in physiological process. Recently, circRNAs are found to be m6A-modified. The abundance of circRNAs was influenced by m6A. Furthermore, the significance of m6A circRNAs has not been elucidated in HPH yet. Here we aim to investigate the transcriptome-wide map of m6A circRNAs in HPH. RESULTS:Differentially expressed m6A abundance was detected in lungs of HPH rats. M6A abundance in circRNAs was significantly reduced in hypoxia in vitro. M6A circRNAs were mainly from protein-coding genes spanned single exons in control and HPH groups. Moreover, m6A influenced the circRNA-miRNA-mRNA co-expression network in hypoxia. M6A circXpo6 and m6A circTmtc3 were firstly identified to be downregulated in HPH. CONCLUSION:Our study firstly identified the transcriptome-wide map of m6A circRNAs in HPH. M6A can influence circRNA-miRNA-mRNA network. Furthermore, we firstly identified two HPH-associated m6A circRNAs: circXpo6 and circTmtc3. However, the clinical significance of m6A circRNAs for HPH should be further validated.
| S-EPMC6958941 | biostudies-literature
Project description:To explore the overall circRNAs involved in growth and development of Arabidopsis thaliana across the lifespan, we deeply sequenced samples of whole plants from different developmental stages (cotyledons emergence, rosette leavesï¹¥1 mm, rosette growth complete, first flower open, flourishing florescence, first silique shattered, senescence). The total RNA was purified by rRNA-depletion and linear RNA removal with RNAseR, and sequenced by the Illumina HiSeq2500 platform. We obtained 31 Gb raw data and identified 1217 circRNAs with expression quantity. We annotated these circRNAs and predicted their targeted microRNA. The circRNAs involved in growth and development of Arabidopsis thaliana across lifespan were identified and analyzed using the Illumina HiSeq2500 platform.
2016-09-01 | E-GEOD-77672 | biostudies-arrayexpress
Project description:Severe acute pancreatitis (SAP) is an acute digestive system disease with high morbidity mortality and hospitalization rate worldwide, due to various causes and unknown pathogenesis. In recent years, a large number of studies have confirmed that non-coding RNAs (ncRNAs) play an important role in many cellular processes and disease occurrence. However, the underlying mechanisms based on the function of ncRNAs, including long noncoding RNA (lncRNA) and circular RNA (circRNA), in SAP remain unclear. In this study, we performed high-throughput sequencing on the pancreatic tissues of 3 normal mice and 3 SAP mice for the first time to describe and analyze the expression profiles of ncRNAs, including lncRNA and circRNA. Our results identified that 49 lncRNAs, 56 circRNAs and 1194 mRNAs were differentially expressed in the SAP group, compared with the control group. Furthermore, we performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of differentially expressed lncRNAs and circRNAs, and found that the functions of the parental genes are enriched in the calcium-regulated signaling pathway, NF-κB signaling pathway, autophagy and protein digestion and absorption processes, which are closely related to the central events in pathogenesis of SAP. We also constructed lncRNA/circRNA-miRNA-mRNA networks to further explore their underlying mechanism and possible relationships in SAP. We found that in the competitive endogenous RNA (ceRNA) networks, differentially expressed lncRNAs and circRNAs are mainly involved in the apoptosis pathway and calcium signal transduction pathway. In conclusion, we found that lncRNAs and circRNAs play an important role in the pathogenesis of SAP, which may provide new insights in further exploring the pathogenesis of SAP and seek new targets for SAP.
2021-02-16 | GSE161945 | GEO
Project description:MicroRNAs in body fluids are becoming interesting markers for disease state. Here we assessed their presence in Mesenteric Lymph to identify candidate biomarkers for pancreatitis using a rat model of the disease. We used Affymetrix microRNA arrays to assess the differences in mesenteric lymph fluid miRNAs in a taurocholate induced rat model of pancreatitis Mesenteric lymph was collected from five biological replicates from control sham operated animals (SHAM), fluid resuscitated taurocholate induced acute pancreatitis (RAP) and non-resuscitated taurocholate induced pancreatitis animals (AP). The latter group represent a more severe form of the disease.
2014-03-31 | E-GEOD-42455 | biostudies-arrayexpress