Gene expression profiles for genetically engineered murine hepatoma Hepa8F5 cells treated with or without doxycycline, cultured as monolayer or spheroids
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
SUBMITTER: Masamichi Kamihira
PROVIDER: E-MTAB-5770 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
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Project description:We developed genetically engineered HepG2/8F_HS cells, in which eight liver-enriched transcription factor (LETF) genes—hepatocyte nuclear factor (HNF)-1α, HNF-1β, HNF-3β, HNF-4α, HNF-6, CCAAT/enhancer binding protein (C/EBP)-α, C/EBP-β and C/EBP-γ— under the control of TRE/PCMVmin promoter were introduced into a previously developed human hepatoma cell line (HepG2-HSP). The heat-inducible synthetic promoter system was introduced into HepG2 cells and tetracycline-responsive transactivator (tTA) and enhanced green fluorescent protein (EGFP) were expressed via positive feedback of tTA transcription in response to heat treatment. HepG2/8F_HS cells can induce high liver functions by heat treatment via overexpression of LETF genes.
2022-04-04 | E-MTAB-11486 | biostudies-arrayexpress
Project description:To obtain a genomic view of hepatocyte nuclear factor-4α (HNF-4α) in the regulation of the inflammatory response, microarray analysis was used to probe the expression profile of an inflammatory response induced by cytokines in a model of knock-down HNF-4α HepG2 cells. The results indicate an extensive role for HNF-4α plays in the regulation of a large number of the liver-specific genes. Majority of genes (71%) affected by cytokine treatment are also affected by HNF-4α knock-down. This significant overlap suggests that HNF-4α may play a role in regulating the cytokine-induced inflammatory response.
2009-05-06 | GSE15991 | GEO
Project description:SOCS1 is a tumor suppressor in hepatocellular carcinoma. Recently we showed that loss of SOCS1 in hepatocytes promotes NRF2 activation. Here we investigated how SOCS1 expression affected oxidative stress response in HCC cells. Murine Hepa1-6 cells expressing SOCS1 (Hepa-SOCS1) or control vector (Hepa-Vector) were treated with cisplatin or tert-butyl hydroperoxide (t-BHP). Induction of NRF2 and its target genes, oxidative stress, lipid peroxidation, cell survival and cellular proteome profiles were evaluated. NRF2 induction was significantly reduced in Hepa-SOCS1 cells. The gene and protein expression of NRF2 targets were differentially induced in Hepa-Vector cells but markedly suppressed in Hepa-SOCS1 cells. Hepa-SOCS1 cells displayed increased induction of reactive oxygen species (ROS) but reduced lipid peroxidation. Nonetheless, Hepa-SOCS1 cells treated with cisplatin or t-BHP showed reduced survival. GCLC, poorly induced in Hepa-SOCS1 cells, showed a strong positive correlation with NFE2L2 and an inverse correlation with SOCS1 in the TCGA-LIHC transcriptomic data. Proteomic analysis of Hepa-Vector and Hepa-SOCS1 cells revealed that SOCS1 differentially modulated many proteins involved in diverse molecular pathways including those implicated in mitochondrial ROS generation and detoxification by peroxiredoxin and thioredoxin systems. Our findings indicate that maintaining sensitivity to oxidative stress is an important tumor suppression mechanism of SOCS1 in HCC.
2024-05-22 | PXD047908 | Pride
Project description:Endoglin (ENG) is a mesenchymal stem cell (MSC) marker highly expressed mainly in active endothelium and certain cancer types. This transmembrane protein is shed to the extracellular compartment by the matrix metalloproteinase 14 (MMP14). Previously, ENG was identified in patient samples from Ewing sarcoma (ES), a bone/soft tissue neoplasia with a putative MSC origin. ES is a predominant paediatric malignancy with high incidence of metastasis at diagnosis, around 30% patients, associated with poor prognosis. This scenario is worsened by the fact that current chemotherapeutic treatments fail to achieve a significant impact on advanced disease. On-target therapies emerge strongly appealing in the clinical setting of ES. Given that a high percentage of patients presented ENG expression at the cell surface, antibody-drug conjugates (ADCs) against ENG were studied. ,. Anti-ENG ADCs exerted an ENG-dependent and dose-dependent anti-proliferative effect in , both in vivo and in vitro ES models. These results suggest that the use of ENG-ADC might have potential benefits in in ES . As the expression of ENG and MMP14 was variable amongst ES patients, a survival study was assessed in a cohort of 82 patients categorised according to their clinical stage (primary, post chemotherapy primary, metastasis and relapse). Both ENG and MMP14 were associated with worse prognosis. Functional assays revealed that ENG regulates migration, probably through the correct assembly of actin in stress fibres and filopodia, with a concomitant effect on the adhesive capacity of the cell. Furthermore, ENG was confirmed to be important in the activation of focal adhesion signalling, by favouring focal adhesion kinase phosphorylation and protein kinase C expression. verall, these results suggest that ENG exerts a main role as an adaptor protein in the correct migration machinery of ES cells.
2025-05-01 | GSE173147 | GEO
Project description:Endoglin (ENG) is a mesenchymal stem cell (MSC) marker highly expressed mainly in active endothelium and certain cancer types. This transmembrane protein is shed to the extracellular compartment by the matrix metalloproteinase 14 (MMP14). Previously, ENG was identified in patient samples from Ewing sarcoma (ES), a bone/soft tissue neoplasia with a putative MSC origin. ES is a predominant paediatric malignancy with high incidence of metastasis at diagnosis, around 30% patients, associated with poor prognosis. This scenario is worsened by the fact that current chemotherapeutic treatments fail to achieve a significant impact on advanced disease. On-target therapies emerge strongly appealing in the clinical setting of ES. Given that a high percentage of patients presented ENG expression at the cell surface, antibody-drug conjugates (ADCs) against ENG were studied. ,. Anti-ENG ADCs exerted an ENG-dependent and dose-dependent anti-proliferative effect in , both in vivo and in vitro ES models. These results suggest that the use of ENG-ADC might have potential benefits in in ES . As the expression of ENG and MMP14 was variable amongst ES patients, a survival study was assessed in a cohort of 82 patients categorised according to their clinical stage (primary, post chemotherapy primary, metastasis and relapse). Both ENG and MMP14 were associated with worse prognosis. Functional assays revealed that ENG regulates migration, probably through the correct assembly of actin in stress fibres and filopodia, with a concomitant effect on the adhesive capacity of the cell. Furthermore, ENG was confirmed to be important in the activation of focal adhesion signalling, by favouring focal adhesion kinase phosphorylation and protein kinase C expression. verall, these results suggest that ENG exerts a main role as an adaptor protein in the correct migration machinery of ES cells.
2025-05-01 | GSE173145 | GEO
Project description:Endoglin (ENG) is a mesenchymal stem cell (MSC) marker highly expressed mainly in active endothelium and certain cancer types. This transmembrane protein is shed to the extracellular compartment by the matrix metalloproteinase 14 (MMP14). Previously, ENG was identified in patient samples from Ewing sarcoma (ES), a bone/soft tissue neoplasia with a putative MSC origin. ES is a predominant paediatric malignancy with high incidence of metastasis at diagnosis, around 30% patients, associated with poor prognosis. This scenario is worsened by the fact that current chemotherapeutic treatments fail to achieve a significant impact on advanced disease. On-target therapies emerge strongly appealing in the clinical setting of ES. Given that a high percentage of patients presented ENG expression at the cell surface, antibody-drug conjugates (ADCs) against ENG were studied. ,. Anti-ENG ADCs exerted an ENG-dependent and dose-dependent anti-proliferative effect in , both in vivo and in vitro ES models. These results suggest that the use of ENG-ADC might have potential benefits in in ES . As the expression of ENG and MMP14 was variable amongst ES patients, a survival study was assessed in a cohort of 82 patients categorised according to their clinical stage (primary, post chemotherapy primary, metastasis and relapse). Both ENG and MMP14 were associated with worse prognosis. Functional assays revealed that ENG regulates migration, probably through the correct assembly of actin in stress fibres and filopodia, with a concomitant effect on the adhesive capacity of the cell. Furthermore, ENG was confirmed to be important in the activation of focal adhesion signalling, by favouring focal adhesion kinase phosphorylation and protein kinase C expression. verall, these results suggest that ENG exerts a main role as an adaptor protein in the correct migration machinery of ES cells.
2025-05-01 | GSE173153 | GEO
Project description:Endoglin (ENG) is a mesenchymal stem cell (MSC) marker highly expressed mainly in active endothelium and certain cancer types. This transmembrane protein is shed to the extracellular compartment by the matrix metalloproteinase 14 (MMP14). Previously, ENG was identified in patient samples from Ewing sarcoma (ES), a bone/soft tissue neoplasia with a putative MSC origin. ES is a predominant paediatric malignancy with high incidence of metastasis at diagnosis, around 30% patients, associated with poor prognosis. This scenario is worsened by the fact that current chemotherapeutic treatments fail to achieve a significant impact on advanced disease. On-target therapies emerge strongly appealing in the clinical setting of ES. Given that a high percentage of patients presented ENG expression at the cell surface, antibody-drug conjugates (ADCs) against ENG were studied. ,. Anti-ENG ADCs exerted an ENG-dependent and dose-dependent anti-proliferative effect in , both in vivo and in vitro ES models. These results suggest that the use of ENG-ADC might have potential benefits in in ES . As the expression of ENG and MMP14 was variable amongst ES patients, a survival study was assessed in a cohort of 82 patients categorised according to their clinical stage (primary, post chemotherapy primary, metastasis and relapse). Both ENG and MMP14 were associated with worse prognosis. Functional assays revealed that ENG regulates migration, probably through the correct assembly of actin in stress fibres and filopodia, with a concomitant effect on the adhesive capacity of the cell. Furthermore, ENG was confirmed to be important in the activation of focal adhesion signalling, by favouring focal adhesion kinase phosphorylation and protein kinase C expression. verall, these results suggest that ENG exerts a main role as an adaptor protein in the correct migration machinery of ES cells.
2025-05-01 | GSE173148 | GEO
Project description:Endoglin (ENG) is a mesenchymal stem cell (MSC) marker highly expressed mainly in active endothelium and certain cancer types. This transmembrane protein is shed to the extracellular compartment by the matrix metalloproteinase 14 (MMP14). Previously, ENG was identified in patient samples from Ewing sarcoma (ES), a bone/soft tissue neoplasia with a putative MSC origin. ES is a predominant paediatric malignancy with high incidence of metastasis at diagnosis, around 30% patients, associated with poor prognosis. This scenario is worsened by the fact that current chemotherapeutic treatments fail to achieve a significant impact on advanced disease. On-target therapies emerge strongly appealing in the clinical setting of ES. Given that a high percentage of patients presented ENG expression at the cell surface, antibody-drug conjugates (ADCs) against ENG were studied. ,. Anti-ENG ADCs exerted an ENG-dependent and dose-dependent anti-proliferative effect in , both in vivo and in vitro ES models. These results suggest that the use of ENG-ADC might have potential benefits in in ES . As the expression of ENG and MMP14 was variable amongst ES patients, a survival study was assessed in a cohort of 82 patients categorised according to their clinical stage (primary, post chemotherapy primary, metastasis and relapse). Both ENG and MMP14 were associated with worse prognosis. Functional assays revealed that ENG regulates migration, probably through the correct assembly of actin in stress fibres and filopodia, with a concomitant effect on the adhesive capacity of the cell. Furthermore, ENG was confirmed to be important in the activation of focal adhesion signalling, by favouring focal adhesion kinase phosphorylation and protein kinase C expression. verall, these results suggest that ENG exerts a main role as an adaptor protein in the correct migration machinery of ES cells.
2025-05-01 | GSE173143 | GEO
Project description:BACKGROUND & AIMS: c-Jun N-terminal kinase (JNK)1 and JNK2 are expressed in hepatocytes and have overlapping and distinct functions. JNK proteins are activated, via phosphorylation, in response to acetaminophen- or CCl4-induced liver damage; the level of activation correlates with the degree of injury. SP600125, a JNK inhibitor, has been reported to block acetaminophen-induced liver injury. We investigated the role of JNK in drug-induced liver injury (DILI) in liver tissues from patients and in mice with genetic deletion of JNK in hepatocytes. METHODS: We studied liver sections from patients with DILI (due to acetaminophen, phenprocoumon, non-steroidal anti-inflammatory drugs or autoimmune hepatitis), or patients without acute liver failure (controls), collected from a DILI Biobank in Germany. Levels of total and activated (phosphorylated) JNK were measured by immunohistochemistry and western blotting. Mice with hepatocyte-specific deletion of Jnk1 (Jnk1Îhepa) or combination of Jnk1 and Jnk2 (JnkÎhepa), as well as Jnk1-floxed C57BL/6 (control) mice, were given injections of CCl4 (to induce fibrosis) or acetaminophen (to induce toxic liver injury). We performed gene expression microarray, and phosphoproteomic analyses to determine mechanisms of JNK activity in hepatocytes. RESULTS: Liver samples from DILI patients contained more activated JNK, predominantly in nuclei of hepatocytes and in immune cells, than healthy tissue. Administration of acetaminophen to JnkÎhepa mice produced a greater level of liver injury than that observed in Jnk1Îhepa or control mice, based on levels of serum markers and microscopic and histologic analysis of liver tissues. Administration of CCl4 also induced stronger hepatic injury in JnkÎhepa mice, based on increased inflammation, cell proliferation, and fibrosis progression, compared to Jnk1Îhepa or control mice. Hepatocytes from JnkÎhepa mice given acetaminophen had an increased oxidative stress response, leading to decreased activation of AMPK, total protein AMPK levels, and pJunD and subsequent necrosis. Administration of SP600125 before or with acetaminophen protected JnkÎhepa and control mice from liver injury. CONCLUSIONS: In hepatocytes, JNK1 and JNK2 appear to have combined effects in protecting mice from CCl4- and acetaminophen-induced liver injury. It is important to study the tissue-specific functions of both proteins, rather than just JNK1, in the onset of toxic liver injury. JNK inhibition with SP600125 shows off-target effects. Livers and primary hepatocytes were isolated from wild type and JNKÎhepa (Jnk1Îhepa/global Jnk2-/-) double-knockout mice and subjected to gene expression profiling.
2016-01-04 | E-GEOD-59602 | biostudies-arrayexpress
Project description:Genome Wide mapping of Hnf-1β in kidney cells. Tissue-specific transcription factor that is expressed in the kidney and other epithelial organs. Humans with mutations in HNF1? develop kidney cysts, and HNF-1β regulates the transcription of several cystic disease genes. However, the complete spectrum of HNF-1β-regulated genes and pathways is not known. Here, we used ChIP-seq and DNA microarray analysis to identify 1,545 protein-coding genes that are directly regulated by HNF-1β in kidney epithelial cells. Pathway analysis predicted that HNF-1β regulates cholesterol metabolism. The expression of genes that are essential for cholesterol synthesis, including Srebf2 and Hmgcr, was reduced by expression of dominant-negative mutant HNF-1β or kidney-specific inactivation of HNF-1β. The levels of cholesterol biosynthetic intermediates and the rate of cholesterol synthesis were decreased in HNF-1β mutant cells. In addition, HNF-1β directly regulated the renal epithelial expression of PCSK9, a key regulator of cholesterol uptake, and depletion of cholesterol in the culture medium mitigated the inhibitory effects of mutant HNF-1β on SREBP-2 and HMGCR. These findings reveal a novel role of HNF-1β in regulating multiple steps in renal cholesterol metabolism.
2015-08-15 | GSE71250 | GEO