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Macrophages in SHH subgroup medulloblastoma display dynamic heterogeneity that varies with treatment modality

ABSTRACT: Macrophages in SHH subgroup medulloblastoma display dynamic heterogeneity that varies with treatment modality

PROVIDER: PRJNA701617 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13697248.fastq.gz	Fastqsanger.gz
	SRR13697249.fastq.gz	Fastqsanger.gz
	SRR13697250.fastq.gz	Fastqsanger.gz
	SRR13697251.fastq.gz	Fastqsanger.gz
	SRR13697252.fastq.gz	Fastqsanger.gz

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Macrophages in SHH subgroup medulloblastoma display dynamic heterogeneity that varies with treatment modality

Project description:Using 10xGenomics single cell RNAseq library creation and Illumina sequencing, we generated single cell RNAseq data for 12 samples of myeloid cells in mouse sonic hedgehog medulloblastomas to characterize their heterogeneity in comparison to control peripheral myeloids cells and homeostatic cerebellar myeloid cells from young mice without significant tumors. We then sequenced myeloid cells in tumors that were treated with two modalities, sonic hedgehog inhibition and radiation, to determine the differential recruitment of myeloid cells. Finally we sequenced samples of myeloid cells from irradiated Ccr2 knockout mice to further determine the change in recruitment of myeloid cells and their heterogeneity when monocyte-derived macrophages are reduced.

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Olig2 targetome in SHH subgroup of medulloblastoma

Project description:Several basic helix-loop-helix (bHLH) transcription factors are upregulated in Sonic Hedgehog subgroup of medulloblastoma (SHH MB). Olig2, a neural bHLH transcription factor known to regulate differentiation of neural cell populations, is broadly expressed in mouse models of SHH MB. ChIP-Seq of Olig2 revealed its binding to a large number of sites near genes known to promote SHH MB tumorigenesis, suggesting a potential role for Olig2 in regulating transcriptional programme of MB.

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AMPK attenuates SHH subgroup medulloblastoma growth and metastasis by inhibiting NF-kB activation

Project description:Background: Medulloblastoma (MB) is one of the most common malignant pediatric brain tumors. Metastasis and relapse are the leading causes of death in MB patients. The initiation of the SHH subgroup of MB (SHH-MB) is due to the aberrant activation of Sonic Hedgehog (Shh) signaling. However, the mechanisms for its metastasis are still unknown. Results: AMP-dependent protein kinase (AMPK) restrains the activation of Shh signaling pathway, thereby impeding the proliferation of SHH-MB cells. More importantly, AMPK also hinders the growth and metastasis of SHH-MB cells by regulating NF-kB signaling pathway. Furthermore, Vismodegib and TPCA-1, which block the Shh and NF-kB pathways, respectively, synergistically restrained the growth, migration, and invasion of SHH-MB cells. Conclusions: This work demonstrates that AMPK functions through two signaling pathways, SHH-GLI1 and NF-kB. AMPK-NF-kB axis is a potential target for molecular therapy of SHH-MB, and the combinational blockade of NF-kB and Shh pathways confers synergy for SHH-MB therapy.

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Identification of genes involved in SHH subgroup medulloblastoma using murine whole-body Sleeping Beauty insertional mutagenesis

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Identification of genes involved in SHH subgroup medulloblastoma using murine whole-body Sleeping Beauty insertional mutagenesis

Project description:Ptch+/- mice, which are predisposed to SHH subgroup medulloblastoma, were mutagenised using the Sleeping Beauty transposon to identify genes which increase the frequency of medulloblastoma formation. Gene expression in tumours was assessed both to investigate their relationship to human subgroup tumours, and to identify genes where expression was altered by mutagenesis. Total RNA isolated from tumours induced by SB mutagenesis were compared to normal cerebellum, tumours induced witout SB mutagenesis, and tumours from a distinct model of disease (GTML).

2013-07-09 | E-GEOD-43994 | biostudies-arrayexpress

AMPK attenuates SHH subgroup medulloblastoma growth and metastasis by inhibiting NF-kB activation

Project description:AMPK attenuates SHH subgroup medulloblastoma growth and metastasis by inhibiting NF-kB activation

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Sufu and Spop cooperate to suppress SHH medulloblastoma tumorigenesis via regulation of Gli2 protein stability [ChIP-seq]

Project description:GLI2 overexpression is a hallmark in SHH subgroup of medulloblastoma (SHH MB). Here we identify the targetome of Gli2 in two mouse models of SHH MB: SmoM2 overexpression and Sufu;Spop double knockout MB.

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Sufu and Spop cooperate to suppress SHH medulloblastoma tumorigenesis via regulation of Gli2 protein stability [RNA-seq]

Project description:GLI2 overexpression is a hallmark in SHH subgroup of medulloblastoma (SHH MB). Here we profile the transcriptome of two mouse models of SHH MB expressing high Gli2: SmoM2 overexpression and Sufu;Spop double knockout MB.

2018-12-13 | GSE112772 | GEO

Sufu and Spop cooperate to suppress SHH medulloblastoma tumorigenesis via regulation of Gli2 protein stability [microarray]

Project description:SUFU alterations are commonly detected in human SHH subgroup of medulloblastoma. Here we profile the gene expression of P13 wildtype and Sufu KO cerebellum, as well as Ptch1 KO MB in biological triplicate.

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