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Liver tissue from liver specific Vps33b knockout (Vps33bfl/fl-AlfpCre) and control (Vps33bfl/fl) mice

ABSTRACT: Liver tissue from Vps33b liver ko (Vps33bfl/fl-AlfpCre) mice is a model of liver disease associated with ARC syndrome, an autosomal recessive inherited metabolic disorder cause by mutations in VPS33B or VIPAS39. ARC is a multisystem disorder, with liver and kidneys affected in particular. Defects in hepatocyte polarity have been identified. Affymetrix arrays were used to characterise the changes in the liver transcriptome when Vps33b is not expressed.

ORGANISM(S): Mus musculus

PROVIDER: GSE83192 | GEO | 2016/06/10

SECONDARY ACCESSION(S): PRJNA325273

REPOSITORIES: GEO

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Liver tissue from liver specific Vps33b knockout (Vps33bfl/fl-AlfpCre) and control (Vps33bfl/fl) mice

Project description:Liver tissue from Vps33b liver ko (Vps33bfl/fl-AlfpCre) mice is a model of liver disease associated with ARC syndrome, an autosomal recessive inherited metabolic disorder cause by mutations in VPS33B or VIPAS39. ARC is a multisystem disorder, with liver and kidneys affected in particular. Defects in hepatocyte polarity have been identified. Affymetrix arrays were used to characterise the changes in the liver transcriptome when Vps33b is not expressed. Mouse liver tissue, 10 samples in total, 4 from control mice, 6 from ko mice.

2016-06-10 | E-GEOD-83192 | biostudies-arrayexpress

Mouse IMCD3 cell lines knocked-down for VPS33B, VIPAR and PLOD3

Project description:Mouse IMCD3 cell lines knocked-down for VPS33B, VIPAR and PLOD3 are used as models of ARC syndrome, an autosomal recessive disorder cause by mutations in VPS33B or VIPAR. Previous work has shown that ARC syndrome causes epithelial cell polarisation defectes and mislocalisation of membrane proteins, so polarised IMCD3 cells were used as an experimental model. Affymetrix arrays were used to characterise the changes to the transcriptome when protein levels of VPS33B, VIPAR and PLOD3 are reduced.

2016-05-13 | GSE81376 | GEO

Mouse IMCD3 cell lines knocked-down for VPS33B, VIPAR and PLOD3

2016-05-13 | E-GEOD-81376 | biostudies-arrayexpress

LKB1 and Notch deletion in mouse liver

Project description:We characterize the phenotype of mice in which the deletion of Lkb1 has been targeted in the liver. Lack of Lkb1 in the liver results in bile duct paucity leading to cholestasis. This phenotype is similar to that obtained upon inactivation of Notch signaling in the liver. We test the hypothesis of a functional overlap between the Lkb1 and Notch pathways by gene expression profiling of livers deficent in Lkb1 or in the Notch mediator RbpJκ. We used AlfpCre mice for liver-specific deletion of LKB1 that were crossed with a conditional knockout mouse model (LKB1 floxed mice). We used also AlfpCre mice for liver-specific inactivation of the Notch pathway. AlfpCre mice were crossed with the RbpJκ floxed mice. RNA was extracted from the liver of LKB1 KO mice (Lkb1Floxed, AlfpCre positive mice) and their wild-type counterpart (Lkb1Floxed, AlfpCre negative mice). RNA was also extracted from liver of RbpJK KO mice (RbpJK floxed, AlfpCre positive) and their wild type mice (RbpJK floxed, AlfpCe negative).

2015-12-08 | GSE75564 | GEO

LKB1 and Notch deletion in mouse liver

Project description:We characterize the phenotype of mice in which the deletion of Lkb1 has been targeted in the liver. Lack of Lkb1 in the liver results in bile duct paucity leading to cholestasis. This phenotype is similar to that obtained upon inactivation of Notch signaling in the liver. We test the hypothesis of a functional overlap between the Lkb1 and Notch pathways by gene expression profiling of livers deficent in Lkb1 or in the Notch mediator RbpJÎº. We used AlfpCre mice for liver-specific deletion of LKB1 that were crossed with a conditional knockout mouse model (LKB1 floxed mice). We used also AlfpCre mice for liver-specific inactivation of the Notch pathway. AlfpCre mice were crossed with the RbpJÎº floxed mice. RNA was extracted from the liver of LKB1 KO mice (Lkb1Floxed, AlfpCre positive mice) and their wild-type counterpart (Lkb1Floxed, AlfpCre negative mice). RNA was also extracted from liver of RbpJK KO mice (RbpJK floxed, AlfpCre positive) and their wild type mice (RbpJK floxed, AlfpCe negative). 6 samples for the liver-specific deletion of LKB1 corresponding to 3 KO LKB1 (Cre positive) and 3 normal liver (Cre negative). 6 samples for the liver-specific inactivation of the Notch pathway corresponding to 3 KO RbpJk (Cre positive) and 3 normal liver (Cre negative).

2015-12-08 | E-GEOD-75564 | biostudies-arrayexpress

Bilineal differentiated liver carcinoma cells generates highly aggressive escape variants

Project description:Background & Aims: Combined HCC/iCCA is a rare liver tumor type. We generated a transgenic mouse model (AlfpCre+-Trp53fl/fl/Alb-HBs+ tg mouse) which developed next to HCC combined HCC/iCCA (cHCC/iCCA). We compared bilineal differentiated liver carcinoma cell lines generated from primary liver tumors of AlfpCre+-Trp53fl/fl/Alb-HBs+ tg mice and transplanted them into C57BL/6J mice to monitor there agressiveness. We compared the geneexpression profile from those primary liver carcinoma cell lines with IFNγ treatment (pCCL-IFNγ) and without treatment (pCCL) with explanted primary carcinoma cell line (pCCL-ex). Results: Here we describe that elimination of HBs+ in pCCL by HBs/(Kb/S190-197)-specific CD8 T cells describes a potential immune escape mechanism for highly aggressive cHCC/iCCA-type liver carcinomas.

2023-05-23 | GSE215059 | GEO

Comprehensive proteomic and transcriptomic characterization of hepatic expression signatures affected in p14 liver conditional knockout mice

Project description:Scaffold proteins regulate intracellular MAP kinase signaling by providing critical spatial and temporal specificity. We have shown previously that the scaffold protein MEK1 partner (MP1) is localized to late endosomes by the adaptor protein p14. Using conditional gene disruption of p14 in livers of mice we analysed protein and transcript signatures in tissue samples. Further biological network analysis predicted that the differentially expressed transcripts and proteins are involved in cell cycle progression and regulation of cellular proliferation. Although some of the here identified signatures were previously linked to phospho-ERK activity, most of them were novel targets of late endosomal p14/MP1/MEK/ERK signaling module. Finally, the proliferation defect was confirmed in a chemically induced liver regeneration model in p14 liver knock-out mice. Conditional liver p14 KO mice were generated by mating p14 f/f mice with mice expressing Cre recombinase under control of Alb promoter and alpha-fetoprotein enhancer. The obtained p14 floxed/floxed;AlfpCre(p14 liver KO) mice were used in experiments as KO mice. To prevent the influence of AlfpCre transgene we used p14 +/+;AlfpCre mice as a control. All mice were derived in a C57BL/6 background and were six weeks old.

2011-02-01 | GSE24461 | GEO

Comprehensive proteomic and transcriptomic characterization of hepatic expression signatures affected in p14 liver conditional knockout mice

2011-02-01 | E-GEOD-24461 | biostudies-arrayexpress

aCGH analysis of liver tumors generated in C57BL/6J mice with a liver specific loss of Trp53-/- [Agilent-024427]

Project description:Background and aims: P53 limits the self-renewal of stem cells from various tissue. A Loss of p53 in combination with other oncogenic events results in aberrant self-renewal and transformation of progenitor cells. Here, we investigated whether a loss of p53 as a single genetic lesion is sufficient to induce liver tumor formation. Methods: AlfpCre mice were crossed with Trp53 conditional knockout mice to achieve a liver-specific loss of Trp53. Results: The liver-specific loss of Trp53 results in liver tumor formation. A high percentage of the tumors showed a mixed differentiation of hepatocellular carcinoma and intrahepatic cholangiocarcinoma. Conclusion: The liver-specific deletion of Trp53 is sufficient to induce liver tumor formation.

2021-01-22 | GSE156253 | GEO

aCGH analysis of liver tumors generated in C57BL/6J mice with a liver specific loss of Trp53-/- [Agilent-027411]

2021-01-22 | GSE156252 | GEO

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