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Comparation the mRNA Expression Profile of the MV4-11 Sorafenib Resistant Cells and the Parental Cells

ABSTRACT: Our gene set analysis of MV4-11-R versus MV4-11 indicated decreased depolarization of mitochondria and mitochondrial membrane, mitochondrial dysfunction and anti-apoptosis as other top ranked molecular or cellular functions of differential gene sets. expression of most genes encoding glycolytic enzymes was up-regulated in MV4-11-R cells we revealed a metabolic alteration in sorafenib-resistant cell lines with mitochondrial respiration deficiency, leading to substantial decrease of mitochondria-derived ATP generation and a significant increase in glycolytic activity to maintain sufficient ATP production. Our study revealed a metabolic signature of sorafenib resistance and indicated that increase of glycolytic activity including upregulation of major glycolytic enzymes may be viewed as a marker for early detection of sorafenib resistance in AML patients with FLT3/ITD mutation and glycolytic inhibitors warrant further investigation as alternative therapeutic agents for sorafenib-resistant cells

ORGANISM(S): Homo sapiens

PROVIDER: GSE74666 | GEO | 2016/08/01

SECONDARY ACCESSION(S): PRJNA301124

REPOSITORIES: GEO

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Comparation the mRNA Expression Profile of the MV4-11 Sorafenib Resistant Cells and the Parental Cells

Project description:Our gene set analysis of MV4-11-R versus MV4-11 indicated decreased depolarization of mitochondria and mitochondrial membrane, mitochondrial dysfunction and anti-apoptosis as other top ranked molecular or cellular functions of differential gene sets. expression of most genes encoding glycolytic enzymes was up-regulated in MV4-11-R cells we revealed a metabolic alteration in sorafenib-resistant cell lines with mitochondrial respiration deficiency, leading to substantial decrease of mitochondria-derived ATP generation and a significant increase in glycolytic activity to maintain sufficient ATP production. Our study revealed a metabolic signature of sorafenib resistance and indicated that increase of glycolytic activity including upregulation of major glycolytic enzymes may be viewed as a marker for early detection of sorafenib resistance in AML patients with FLT3/ITD mutation and glycolytic inhibitors warrant further investigation as alternative therapeutic agents for sorafenib-resistant cells Sorafenib resistant cells MV411-R VS. parental MV4-11 cells. Biological replicates: 3 control replicates, 3 treated replicates.

2016-08-01 | E-GEOD-74666 | biostudies-arrayexpress

Aurora-A interactome in MV4-11 cells

Project description:To determine interactors of Aurora-A, HA tagged Aurora-A was immunoprecipitated from MV4-11 cells stably expressing HA tagged Aurora-A wild type and compared to MV4-11 cells expressing empty vector.

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CD36 impacts the expression of genes in MV4-11 cells

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Gene expression changes in MV4-11 cells upon SMARCA4 knock-down and PFI-3 treatment

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Project description:Enhanced homing and uncontrolled expansion are the characteristics of AML cells. We identified a transcription factor FEV (fifth Ewing variant) as the regulator. To assess the regulation mechanisms, FEV expression was knocked down in AML cell line MV4-11 cells using shRNA. MV4-11 cells transduced with non-silencing control (NC), FEV shRNA (shFEV) were cultured for 3 days and sorted by FACS. The cells were collected and total RNA was isolated by the Trizol kit (Takara Bio, Otsu, Japan) according to manufacturer’s protocol. High-throughput RNA sequencing (RNA-seq) was performed by Illumina HiSeq 2500 (Illumina, San Diego, CA) at CapitalBio Corporation (Beijing, China). Differentially expressed genes were analysed between the two groups.

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The multikinase inhibitor Sorafenib targets mitochondria and synergizes with glycolysis blockade for cancer cell killing.

Project description:Objective: identify novel and relevant aspects of Sorafenib action on liver cancer cells. We found that in rat hepatocholangiocarcinoma (LCSC-2) cells, exposure to the MEK/multikinase inhibitor sorafenib did not inhibit ERK phosphorylation nor induced appreciable cell death in the low micromolar range; instead, the drug elicited a raise of intracellular reactive oxygen species (ROS) accompanied by a severe decrease of oxygen consumption and intracellular ATP levels, all changes consistent with mitochondrial damage. Moreover, Sorafenib induced depolarization of isolated rat liver mitochondria, indicating a possible direct effect on the organelle. Microarray analysis of gene expression in sorafenib-trated cells revealed a metabolic reprogramming toward aerobic glycolysis, that likely accounts for resitance to drug toxicity in this cell line. Importantly, cytotoxicity was strongly potentiated by glucose withdrawal from the culture medium or by the glycolytic inhibitor 2-deoxy-glucose, a finding also confirmed in the highly malignant melanoma cell line B16F10. Mechanistic studies revealed that ROS are pivotal to cell killing by the Sorafenib + 2DG combination, and that a low content of intracellular oxidants is associated with resistance to the drug; instead, Thr172phosphorylation/activation of the AMP-activated protein kinase (AMPK), induced by Sorafenib, may exert protective effects, since cytotoxicity was enhanced by an AMPK specific inhibitor and prevented by the AMPK activator Metformin. Overall, this study identifies novel and relevant aspects of Sorafenib action on liver cancer cells, including mitochondrial damage, induction of ROS and a metabolic cell reprogramming towards “glucose addiction”, potentially exploitable in therapy.

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