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MRNA expression pattern of KrasG12D mice with acute pancreatitis compared with wild-type mice without acute pancreatitis

ABSTRACT: Transgenic KrasG12D mice can recapitulate pancreas intra-epithelial neoplasia (PanIN). Caerulein is a cholecystokinin analogue and induces acute pancreatitis when injected intra-abdominally. Caerulein-induced acute pancreatitis will accelerate PanIN progression in KrasG12D mice. We compared mRNA profile changes between KrasG12D mice with acute caerulein-induced pancreatitis and wild-type mice without acute pancreatitis.

ORGANISM(S): Mus musculus

PROVIDER: GSE77983 | GEO | 2016/05/14

SECONDARY ACCESSION(S): PRJNA312298

REPOSITORIES: GEO

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mRNA expression pattern of KrasG12D mice with acute pancreatitis compared with wild-type mice without acute pancreatitis

Project description:Transgenic KrasG12D mice can recapitulate pancreas intra-epithelial neoplasia (PanIN). Caerulein is a cholecystokinin analogue and induces acute pancreatitis when injected intra-abdominally. Caerulein-induced acute pancreatitis will accelerate PanIN progression in KrasG12D mice. We compared mRNA profile changes between KrasG12D mice with acute caerulein-induced pancreatitis and wild-type mice without acute pancreatitis. The experiment had two groups. Experiment group: KrasG12D mice with acute caerulein-induced pancreatitis (N=6). Three mice in experiment group received 1-week caerulein injection, and the other three mice received 2-week caerulein injection. All experiment group mice started to receive caerulein injection at 1-month of age, and were sacrificed at the last day of caerulein injection. Control group: wild-type mice without acute pancreatitis (N=6). The mice were sacrificed at 1.5-month of age. Whole pancreas tissue lysate samples were subjected to mRNA array assay.

2016-05-14 | E-GEOD-77983 | biostudies-arrayexpress

Identification of transcriptional signatures overlapping in pancreatic ductal development, acute pancreatitis and KrasG12D-driven carcinogenesis

Project description:To determine the molecular basis of gene regulation in pancreatic ductal epithelial cells, we developed methods for the isolation of this cell population during mouse development and normal adult homeostasis, as well as in conditions with ductal features (acinar-to-ductal metaplasia (ADM), pancreatic intraepithelial neoplasia (PanIN) and pancreatic ductal adenocarcinoma (PDAC)). Our technique utilizes the specificity of Dolichos biflorus Agglutinin (DBA) lectin marking the entire normal ductal tree, including terminal intercalated ducts (putative sites of stem or progenitor cells) and ductal structures in ADM and PanIN. We used ferromagnetic-labeled DBA lectin to isolate ductal structures. Ductal cells were isolated under the following conditions: (1) Embryonic Development in wild type mice: E14.5, E15.5, E16.5, and postnatal day 1 (P1); (2) Injury and regeneration (pancreatitis) 0, 1, 3, 5 days following cerulein-induced acute pancreatitis. Cerulein is a cholecystokinin analog which produces a self-limited pancreatitis with injury and subsequent regeneration and repair, completed five days after insult; and (3) Pdx1-Cre;LSL-KrasG12D/+ mice aged 10 and 20 weeks that harbor PanIN lesions and a subset develop PDAC. Ductal/PanIN cells were isolated from these mice and appropriate control mice (Pdx1-Cre;Kras+/+).

2015-09-30 | GSE40895 | 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

Expression data of caerulein-treated wild-type mice and KrasG12D-mutated mice at different stages of pancreatic regeneration after inflammatory injury

Project description:Consecutive caerulein injections induce an acute pancreatitis in mice. Here, we recorded gene expression levels at different stages of pancreatic regeneration in wild-type mice as well as KrasG12D-mutated mice. Tissue was collected from mice pancreata, cell sorting was not performed. t=0h refers to the time where caerulein was injected. control referes to NaCl-treated samples (no caerulein). 13 time points were used for wild-type mice, 9 time points were used for KrasG12D-mutated mice. Multiple replicates were generated for each time point. We used Affymetrix GeneChip Mouse Gene 1.0 ST arrays.

2016-07-03 | E-GEOD-65146 | biostudies-arrayexpress

RNA-Seq of pancreatic tissue from wt, KrasG12D, Pi3kCAH1047R and Mek1dd mice, at 10 weeks and after induction of acute pancreatitis

Project description:To investigate the underlying changes during acinar-to-ductal metaplasia induced by different oncogenes and by acute pancreatitis, pancreatic tissue was isolated from 10 week old control wt, KrasG12D, Pi3kCAH1047R and Mek1dd mice and from mice of the same genotypes after induction of acute pancreatitis.

2024-04-06 | E-MTAB-13946 | biostudies-arrayexpress

Expression data of caerulein-treated wild-type mice and KrasG12D-mutated mice at different stages of pancreatic regeneration after inflammatory injury

2016-01-01 | GSE65146 | GEO

Cerulein induced acute pancreatitis in C57Bl/6J

Project description:There still is a lack of specific, early markers for acute pancreatitis. We used the gene expression profiling Affimetrix mouse gene 1.0 ST arrays (Affymetrix , Inc. Santa Clara, CA), to cmpare the gene expression between control mice and mice with induced experimental acute pancreatitis, in order to identify new potential biomarkers of acute pancreatitis.

2018-09-12 | GSE109227 | GEO

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

Project description:Hepatic transcriptome analysis of control, acute pancreatitis and severe acute pancreatitis mice

| PRJNA637754 | ENA

Hepatic transcriptome analysis of control and severe acute pancreatitis mice

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

Proteomic analysis of acute pancreatitis in TRP14-KO miceProteomic analysis of acute pancreatitis in TRP14-KO mice

Project description:We have studied pancreas samples in pancreas from a mouse model of acute pancreatitis, comparing wild-type animals and TRP14 KO animals. Samples are extracted with N-ethylmaleimide to block reduced cysteines, and no reducing agent is used, with a search including cysteinylated peptides. Acute pancreatitis was induced in 12 weeks-old mice (wild-type and KO for TRP14) by seven intraperitoneal injections of cerulein (50 µg/kg body weight) at 1 h intervals. Then, 1 h after the last injection, animals were euthanized under anesthesia with 3% isoflurane, exsanguinated, and the pancreas was immediately removed and processed.

2024-05-15 | PXD050765 | Pride

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