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The protective effect of betacellulin against acute pancreatitis is ERBB4-dependent

ABSTRACT: We investigated the pancreatic transcriptome of Btc mice and control littermates by microarrays to identify regulated genes that could mechanistically explain the protection of BTC against AP.

ORGANISM(S): Mus musculus

PROVIDER: GSE121038 | GEO | 2018/10/10

REPOSITORIES: GEO

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The protective effect of betacellulin against acute pancreatitis is ERBB4-dependent

Project description:The protective effect of betacellulin against acute pancreatitis is ERBB4-dependent

| PRJNA495388 | ENA

Absence of Anxa1 in myeloid lineage cells exacerbates acute pancreatitis (AP)

Project description:To elucidate the role of macrophage Anxa1 in the pathogenesis of AP, we intercrossed Anxa1flox/flox (Anxa1f/f or Anxa1 WT, as control) with Lyz2-Cre mice to create myeloid-specific Anxa1-knockout (Anxa1CKO) mice. We induced AP with repeated injection of cerulein in Anxa1CKO and Anxa1f/f littermates and examined the pancreas injury and inflammation. Pancreas tissue samples were collected at 12 hours after the first cerulein injection and performed RNA-seq.

2023-12-15 | GSE249714 | GEO

Potential regulatory proteins in pancreatitis were screened by proteomics using pancreatic tissues of PRSS1 AP mice

Project description:Humanized PRSS1 transgenic mice were constructed and treated with caerulein to mimic the development of human AP and CP. Potential regulatory proteins in pancreatitis were screened by proteomics using pancreatic tissues of PRSS1 AP mice.

2021-09-09 | PXD016651 | Pride

Protective Effects of Lithospermum erythrorhizon Against Cerulein-Induced Acute Pancreatitis.

Project description:ObjectivesWe aimed to evaluate the anti-inflammatory and inhibitory effects of Lithospermum erythrorhizon (LE) on cerulein-induced acute pancreatitis (AP) in a mouse model.MethodsAcute pancreatitis was induced via intraperitoneal injection of cerulein (50 μg/kg) every hour for 6 times. In the LE, water extract (100, 250, or 500 mg/kg) was administered intraperitoneally 1 hour before the first injection of cerulein. Six hours after AP, blood, the pancreas, and the lung were harvested for further examination. In addition, pancreatic acinar cells were isolated using a collagenase method, and then, we investigated the acinar cell viability and cytokine productions.ResultsTreatment with LE reduced pancreatic damage and AP-associated lung injury and attenuated the severity of AP, as evidenced by the reduction in neutrophil infiltration, serum amylase and lipase levels, trypsin activity, and proinflammatory cytokine expression. In addition, treatment with LE inhibited high mobility group box 1 expression in the pancreas during AP. In accordance with in vivo data, LE inhibited the cerulein-induced acinar cell death, cytokine productions, and high-mobility group box 1 expression. Furthermore, LE also inhibited the activation of p38 mitogen-activated protein kinases.ConclusionsThese results suggest that LE plays a protective role during the development of AP by inhibiting the activation of p38.

| S-EPMC4272226 | biostudies-literature

Comprehensive analysis of differentially expressed lncRNA, and mRNA and their ceRNA networks in mice with the initial stage acute pancreatitis

Project description:Acute pancreatitis (AP) is a prevalent digestive disorder with significant morbidity and mortality rates. This study, for the first time, employed high-throughput sequencing on pancreatic tissues from normal and AP mice to identify differentially expressed long noncoding RNAs (lncRNAs) and mRNAs, as well as related signaling pathways, in the early stage of AP. We found 261 lncRNAs and 1,522 mRNAs to be differentially expressed, with Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses revealing gene functions enriched in cellular metabolism, intercellular structure, and positive regulation of inflammation. By constructing lncRNA-miRNA-mRNA networks, we explored underlying mechanisms and interactions in AP. Notably, knockout of Neat1 in mice inhibited pyroptosis in AP and severe acute pancreatitis (SAP) models, suggesting Neat1's pivotal role in AP pathogenesis. These findings highlight the importance of lncRNAs, particularly Neat1, in AP, offering new insights into SAP pathogenesis and potential therapeutic targets.

2024-11-13 | GSE272464 | GEO

Hepatic transcriptome analysis of control, acute pancreatitis and severe acute pancreatitis mice

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

The heparin-binding proteome in nomal pancreas and murine experimental acute pancreatitis, C4PR_LIV

Project description:Acute pancreatitis (AP) is an acute inflammation of the pancreas, mainly caused by gallstones and alcohol, and driven by changes in communication between cells. Heparin-binding proteins (HBPs) of the plasma membrane and extracellular matrix play a central role in cell communication. Therefore, we used heparin affinity proteomics to identify the extracellular HBPs in mouse normal pancreas (NP) and in a caerulein mouse model of AP. Many new HBPs (460) were discovered more than doubling their total number to 883. A number of the new HBPs are proteins with well-characterised intracellular functions, e.g. NDUFS4, NDUFS6, but which also have a documented extracellular presence with potential ‘moonlighting’ roles. The HBPs form highly interconnected protein-protein interaction networks in both NP and AP, as well as globally. Thus, HBPs may represent the most interconnected set of extracellular proteins and so those with the greatest regulatory potential. HBPs in NP are associated with biological functions such as molecular transport, cellular movement and tissue architecture that underlie pancreatic homeostasis. However, in AP HBPs are additionally associated with processes such as acute phase response signalling, complement system and mitochondrial dysfunction. By virtue of their extracellular location and heparin binding property, HBPs are easily accessible and are potential biomarkers and drug targets in AP.

2018-12-11 | PXD001950 | Pride

Gene Expression Profiling of Acute Pancreatitis

Project description:Peripheral blood was collected from 87 patients with acute pancreatitis (AP) of varying severity (Mild=57, Moderately-Severe=20, Severe=10) within 24 hours of presentation to the hospital and from 32 healthy controls. RNA-Seq was performed to identify changes in expression in severe AP cf. mild, moderately-severe, and healthy controls.

2022-03-01 | GSE194331 | GEO

Protective effect of YHI and HHI-I against experimental acute pancreatitis in rabbits.

Project description:AIM:To observe the protective effect of combined i.v. administraction of Yuanhu injection (YHI) and Huoxuehuayu injection-I (HHI-I) against acute pancreatitis (AP) in rabbits.METHODS:Sever acute pancreatitis (SAP) was induced by retrograde infusion of artificial bile juice into biliary-pancreatic duct, and treated with YHI and HHI-I intravenously. The protective effect was judged by the survival time and rate, serum amylase, serum interleukin-6, pancreatic microcirculation and pathological alteration.RESULTS:Combined use of YHI and HHI-I could markedly increase the rabbits' 5-day survival rate after AP (83.3% in the treatment group and 33.3% in control). The serum amylase value (x-± s) decreased to 1596.6U/L± 760.50U/L in the 5th day from the high level (6320.83U/L± 2614.12U/L) in the 1st day after AP in the treatment group, while in the control group the amylase activity in the 5th day was 2095.0U/L± 1081.87U/L, being significantly different from that before AP (837.17U/L± 189.12U/L). YHI and HHI-I also obviously improved the pancreatic microcirculation and lowered the serum interleukin-6 level, one of the indices of severe pancreatitis. Pathological examination indicated all the changes typical for AP in YHI and HHI-I treatment group were milder than those in the control.CONCLUSION:YHI and HHI-I used in combination might have protective effect against acute pancreatitis in rabbits.

| S-EPMC4723471 | biostudies-literature

LPS-induced systemic inflammation mediates a protective effect against ischemic injury via microglia

Project description:LPS-induced systemic inflammation mediates a protective action on ischemic injury via microglia. We used RNA sequencing analysis (RNA-seq) to gain molecular insights into microglia-mediated protection of cerebral infarction.

2023-12-19 | GSE244358 | GEO

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