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Inhibition of the Aryl Hydrocarbon Receptor - Polyamine Biosynthesis Axis Suppresses Multiple Myeloma and prostate cancer progression

ABSTRACT: Inhibition of the Aryl Hydrocarbon Receptor - Polyamine Biosynthesis Axis Suppresses Multiple Myeloma and prostate cancer progression

PROVIDER: PRJNA481382 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7528400.fastq.gz	Fastqsanger.gz
	SRR7528410.fastq.gz	Fastqsanger.gz
	SRR7528401.fastq.gz	Fastqsanger.gz
	SRR7528411.fastq.gz	Fastqsanger.gz
	SRR7528402.fastq.gz	Fastqsanger.gz

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Inhibition of the Aryl Hydrocarbon Receptor - Polyamine Biosynthesis Axis Suppresses Multiple Myeloma and prostate cancer progression

Project description:Polyamine inhibition for cancer therapy is, conceptually, an attractive approach but has yet to meet success in the clinical setting. The aryl hydrocarbon receptor (AHR) is the central transcriptional regulator of xenobiotic response. Our study revealed that AHR also positively regulated intracellular polyamine production via direct transcriptional activation of two genes (ODC1 and AZIN1) involved in polyamine biosynthesis and control, respectively. In multiple myeloma patients, AHR levels inversely correlated with survival, suggesting that AHR inhibition may be beneficial for treatment of this disease .We identified clofazimine, an FDA-approved anti-leprosy drug, as a potent AHR antagonist and a suppressor of polyamine biosynthesis. Experiments in a transgenic model of multiple myeloma (Vk*Myc mice) and in immunocompromised mice bearing multiple myeloma cell xenografts, revealed high efficacy of clofazimine comparable to that of bortezomib, a first-in-class proteasome inhibitor used for treatment of multiple myeloma. This study identified a previously unrecognized regulatory axis between AHR and polyamine metabolism and discovered clofazimine as an inhibitor of AHR and a potentially clinically-relevant anti-multiple myeloma agent. RNA-seq: human multiple myeloma MM1S and human normal fibroblasts WI38 cells -/+ CLF 2-4uM for 24hrs; -/+ shAHR

2018-07-18 | GSE117160 | GEO

Inhibition of the aryl hydrocarbon receptor/polyamine biosynthesis axis suppresses multiple myeloma.

Project description:Polyamine inhibition for cancer therapy is, conceptually, an attractive approach but has yet to meet success in the clinical setting. The aryl hydrocarbon receptor (AHR) is the central transcriptional regulator of the xenobiotic response. Our study revealed that AHR also positively regulates intracellular polyamine production via direct transcriptional activation of 2 genes, ODC1 and AZIN1, which are involved in polyamine biosynthesis and control, respectively. In patients with multiple myeloma (MM), AHR levels were inversely correlated with survival, suggesting that AHR inhibition may be beneficial for the treatment of this disease. We identified clofazimine (CLF), an FDA-approved anti-leprosy drug, as a potent AHR antagonist and a suppressor of polyamine biosynthesis. Experiments in a transgenic model of MM (Vk*Myc mice) and in immunocompromised mice bearing MM cell xenografts revealed high efficacy of CLF comparable to that of bortezomib, a first-in-class proteasome inhibitor used for the treatment of MM. This study identifies a previously unrecognized regulatory axis between AHR and polyamine metabolism and reveals CLF as an inhibitor of AHR and a potentially clinically relevant anti-MM agent.

| S-EPMC6159960 | biostudies-literature

Polyamine biosynthesis in Salmonella

Project description:Verification of the polyamine biosynthesis mutant

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The Aryl Hydrocarbon Receptor Regulates Tissue-Specific Dioxin-Dependent and Dioxin-Independent Gene Batteries

Project description:This SuperSeries is composed of the following subset Series: GSE15857: The Aryl Hydrocarbon Receptor Regulates Tissue-Specific Dioxin-Dependent and Dioxin-Independent Gene Batteries: Kidney GSE15858: The Aryl Hydrocarbon Receptor Regulates Tissue-Specific Dioxin-Dependent and Dioxin-Independent Gene Batteries: Liver Refer to individual Series

2010-05-05 | E-GEOD-15859 | biostudies-arrayexpress

Impact of impaired polyamine biosynthesis on Streptococcus pneumoniae TIGR4 gene expression

Project description:The polyamine biosynthesis gene, speE, in Streptococcus pneumoniae TIGR4 is necessary for survival in murine models of pneumococcal pneumonia. To date, there is no description of polyamine biosynthesis dependent pneumococcal gene expression. In this study, we compared gene expression between the wild-type and biosynthesis deficient (speE) TIGR4 by RNA-Seq analysis.

2023-01-01 | E-MTAB-6070 | biostudies-arrayexpress

Aryl hydrocarbon receptor dynamically regulates inflammatory and secretory gene pathways in decidual endometrial stromal cells

Project description:We report sequencing of chromatin immunoprecipitated DNA (ChIP-Seq) of Aryl Hydrocarbon Receptor (AHR) targets from decidual stromal cells with kynurenine treatment and normal decidualization media

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Zebrafish larvae aryl hydrocarbon receptor ligands and inhibitor

Project description:Zebrafish larvae aryl hydrocarbon receptor ligands and inhibitor

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Aryl hydrocarbon receptor-interacting protein regulates tumorigenic and metastatic properties of colorectal cancer cells driving liver metastasis

Project description:Aryl hydrocarbon receptor-interacting protein (AIP), a putative positive intermediary in aryl hydrocarbon receptor-mediated signaling, is overexpressed in highly metastatic human KM12SM CRC cells, with high metastatic capacity to liver, and other highly metastatic CRC cells. Meta-analysis and immunohistochemistry were used to assess the relevance of this protein in CRC. Cellular functions and signaling mechanisms mediated by AIP were assessed by gain-of-function experiments and in vitro and in vivo experiments. A significant association of high AIP expression with poor CRC patients’ survival was observed. Gain-of-function and quantitative proteomics experiments demonstrated that AIP increased tumorigenic and metastatic properties of isogenic KM12C (poorly-metastatic) and KM12SM CRC cells. AIP overexpression dysregulated epithelial-to-mesenchymal (EMT) markers and induced several transcription factors and Cadherin-17 activation. The former induced the signaling activation of AKT, SRC, and JNK kinases to increase adhesion, migration and invasion of CRC cells. In vivo, AIP expressing KM12 cells induced tumor growth and liver metastasis. Furthermore, KM12C (poorly-metastatic) cells ectopically expressing AIP became metastatic to liver. Our data reveal new roles for AIP in regulating proteins associated with cancer and metastasis to induce tumorigenic and metastatic properties in colon cancer cells driving liver metastasis.

2023-05-10 | PXD031119 | Pride

Expression data of primary melanocytes from aryl hydrocarbon deficient mice and corresponding wild-type C57BL/6 mice

Project description:[original Title] Comparison of expression data of primary murine melanocytes from aryl hydrocarbon deficient mice and corresponding wild-type C57BL/6 mice Melanin is produced exclusively by melanocytes and melanogenesis is the vital response to protect skin cells against Ultraviolet B (UVB)-induced DNA damage. The aryl hydrocarbon receptor (AhR) is a transcription factor, which may be involved in the physiological tanning response. Normal murine melanocytes express functional AhR. We tested gene expression in WT versus AhR-deficient mice primary murine melanocytes, isolated from the skin and cultivated for several passages. Skin epidermal cells from 2 individual C57BL/6 mice and 2 individual AhR-deficient mice (deletion of exon2, AhRtm1Bra) were grown for 6-8 weeks in selection medium to propagate melanocytes.

2010-09-05 | E-GEOD-19411 | biostudies-arrayexpress

Aryl hydrocarbon receptor dynamically regulates immunological and secretory gene pathways in decidual endometrial stromal cells

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