Effect of monoacylglycerol lipase inhibition on intestinal permeability of rats with severe acute pancreatitis
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ABSTRACT:
PROVIDER: PRJNA812894 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR18222150_1.fastq.gz | Fastqsanger.gz | |||
| SRR18222150_2.fastq.gz | Fastqsanger.gz | |||
| SRR18222151_1.fastq.gz | Fastqsanger.gz | |||
| SRR18222151_2.fastq.gz | Fastqsanger.gz | |||
| SRR18222152_1.fastq.gz | Fastqsanger.gz |
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Project description:Endocannabinoid 2-arachidonoylglycerol (2-AG) is an anti-nociceptive lipid that is inactivated through cellular uptake and subsequent catabolism by monoacylglycerol lipase (MAGL). In this study, we investigated the effects of MAGL inhibition on intestinal permeability and explored the possible mechanism. A rat model of severe acute pancreatitis (SAP) was established. Rats were divided into three groups according to treatment. We analyzed intestinal permeability to fluorescein isothiocyanate-dextran and the levels of inflammatory factors interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) and 2-AG. Hematoxylin and eosin staining was used to assess histological tissue changes. In vivo intestinal permeability was evaluated by transmission electron microscopy. We obtained ileum tissues, extracted total RNA, and applied RNA-sequencing. Sequencing data were analyzed by bioinformatics. Inflammatory factor levels were higher, while 2-AG levels were lower in the SAP group compared with the control group. Administration of JZL184 to rats with SAP increased the levels of 2-AG and lowered the levels of IL-6 and TNF-α. Notably, intestinal permeability was improved by JZL184 as demonstrated by fluorescein isothiocyanate-dextran measurement, hematoxylin and eosin staining, and transmission electron microscopy. RNA-sequencing showed significant transcriptional differences in SAP and JZL184 groups compared with the control group. KEGG analysis showed that the up- or downregulated genes in multiple comparison groups were enriched in two pathways, focal adhesion and PI3K-Akt signaling pathways. Differential alternative splicing (AS) genes, such as Myo9b, Lsp1, and Git2, have major functions in intestinal diseases. A total of 132 RNA-binding proteins (RBPs) were screened by crossing the identified abnormally expressed genes with the reported RBP genes. Among them, Hnrnpdl coexpressed the most AS events as the main RBP. MAGL inhibition improved intestinal mucosal barrier injury in SAP rats and induced a large number of differentially expressed genes and alternative splicing events. Hnrnpdl might play an important role in improving intestinal mucosal barrier injury by affecting alternative splicing events.
2022-03-18 | GSE197930 | GEO
Project description:Background: Endocannabinoid 2-arachidonoylglycerol (2-AG) is an anti-nociceptive lipid that is inactivated through cellular uptake and subsequent catabolism by monoacylglycerol lipase (MAGL). In this study, we investigated the effects of MAGL inhibition on intestinal permeability and explored the possible mechanism. Methods: A rat model of severe acute pancreatitis (SAP) was established. Rats were divided into three groups according to treatment. We analyzed intestinal permeability to fluorescein isothiocyanate-dextran and the levels of inflammatory factors interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) and 2-AG. Hematoxylin and eosin staining was used to assess histological tissue changes. In vivo intestinal permeability was evaluated by transmission electron microscopy. We obtained ileum tissues, extracted total RNA, and applied RNA-sequencing. Sequencing data were analyzed by bioinformatics. Results: Inflammatory factor levels were higher, while 2-AG levels were lower in the SAP group compared with the control group. Administration of JZL184 to rats with SAP increased the levels of 2-AG and lowered the levels of IL-6 and TNF-α. Notably, intestinal permeability was improved by JZL184 as demonstrated by fluorescein isothiocyanate-dextran measurement, hematoxylin and eosin staining, and transmission electron microscopy. RNA-sequencing showed significant transcriptional differences in SAP and JZL184 groups compared with the control group. KEGG analysis showed that the up- or downregulated genes in multiple comparison groups were enriched in two pathways, focal adhesion and PI3K-Akt signaling pathways. Differential alternative splicing (AS) genes, such as Myo9b, Lsp1, and Git2, have major functions in intestinal diseases. A total of 132 RNA-binding proteins (RBPs) were screened by crossing the identified abnormally expressed genes with the reported RBP genes. Among them, HNRNPDL coexpressed the most AS events as the main RBP. Conclusion: MAGL inhibition improved intestinal mucosal barrier injury in SAP rats and induced a large number of differentially expressed genes and alternative splicing events. HNRNPDL might play an important role in improving intestinal mucosal barrier injury by affecting alternative splicing events.
| S-EPMC9039313 | biostudies-literature
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, 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: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:Long non-coding RNAs (lncRNAs) reportedly contribute to disease pathogenesis and drug treatment effects. Both emodin and dexamethasone (DEX) have been used for the treatment of severe acute pancreatitis-associated acute lung injury (SAP-ALI). However, lncRNA regulation networks related to SAP-ALI pathogenesis and drug treatment are unreported. In this study, lncRNAs and mRNAs in the lung tissue of SAP-ALI and control rats, with or without drug treatment (emodin or DEX), were assessed by RNA sequencing. Results showed that both emodin and DEX were therapeutic for SAP-ALI and that mRNA and lncRNA levels differed between untreated and treated SAP-ALI rats. Gene expression profile relationships for emodin treated and control rats were higher than DEX treated and untreated animals. By comparison of control and SAP-ALI animals, more upregulated than downregulated mRNAs and lncRNAs were observed with emodin treatment. For DEX treatment, more downregulated than upregulated mRNAs and lncRNAs were observed. Functional analysis demonstrated both upregulated mRNA and co-expressed genes with upregulated lncRNAs were enriched in inflammatory and immune response pathways. Further, emodin associated lncRNAs and mRNAs co-expressed modules were different from those associated with DEX. Quantitative polymerase chain reaction demonstrates that selected lncRNA and mRNA co-expressed modules were different in the lung tissue of emodin and DEX treated rats. Also, emodin had different effects compared to DEX on the co-expression network of lncRNAs Rn60_7_1164.1 and AABR07062477.2 for the blue lncRNA module and Nrp1 for the green mRNA module. In conclusion, this study provides evidence that emodin may be a suitable alternative or complementary medicine for treatment of SAP-ALI.
2021-01-03 | GSE151572 | GEO
Project description:Background: The therapeutic and protective efects of human umbilical cord mesenchymal stem cells-exosomes (hucMSC-Exs) on traumatic pancreatitis (TP) remain unknown. Here, we established a rat model of TP and evaluated and compared the therapeutic efects of hucMSC-Exs. Methods: HucMSC-Exs were obtained by ultracentrifugation and identifed using transmission electron microscopy and western blot analysis. TP rats were treated by tail vein injection of hUC-MSCs and hucMSC-Exs. Their homing in rats was observed by performing fuorescence microscopy. Rat pancreatic tissue was subjected to high-throughput sequence to determine transcriptome expression levels. The degree of pancreatic tissue damage was assessed by HE staining, the expression levels of amylase, lipase, and infammatory cytokines were detected by ELISA, apoptosis was detected by TUNEL assay, and the expression levels of various apoptosis-related proteins were detected by western-blot. The expression levels of apoptosis-related molecular markers were detected by RT-qPCR. Results: The colonization of exosomes was observed in pancreatic tissue. Compared to TP group, the histopathological score of pancreas was signifcantly decreased in the TP+hucMSC-Exs group (P<0.05). Compared to TP group, the activity of serum amylase and lipase was signifcantly decreased (P<0.05). The expression levels of IL-6 and TNF-α were signifcantly decreased, while those of IL-10 and TGF-β were signifcantly increased (P<0.05). The apoptosis index of the TP group was signifcantly increased (P<0.05), whereas that of the TP+hucMSC-Exs groups was signifcantly decreased (P<0.05). Compared to TP group, the expression levels of Bax, Bcl-2, and Caspase-3 were signifcantly decreased in the TP+hUC-MSCs group and TP+hucMSC-Exs group (P<0.05). Conclusion: HucMSC-Exs can colonize injured pancreatic tissue, inhibit the apoptosis of acinar cells, and control the systemic infammatory response to facilitate the repair of pancreatic tissue.
2022-10-04 | GSE214370 | 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: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