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Drosophila melanogaster

ABSTRACT: An ectopic network of transcription factors regulated by Hippo signaling drives growth and invasion of a malignant tumor model [larval imaginal discs]

PROVIDER: PRJNA291028 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2128010_1.fastq.gz	Fastqsanger.gz
	SRR2128010_2.fastq.gz	Fastqsanger.gz
	SRR2128011_1.fastq.gz	Fastqsanger.gz
	SRR2128011_2.fastq.gz	Fastqsanger.gz
	SRR2128012_1.fastq.gz	Fastqsanger.gz

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Drosophila melanogaster

Project description:An ectopic network of transcription factors regulated by Hippo signaling drives growth and invasion of a malignant tumor model [larval imaginal discs (eye, wing and leg)]

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Drosophila melanogaster

Project description:An ectopic network of transcription factors regulated by Hippo signaling drives growth and invasion of a malignant tumor model [larval wild type discs]

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An ectopic network of transcription factors regulated by Hippo signaling drives growth and invasion of a malignant tumor model

Project description:An ectopic network of transcription factors regulated by Hippo signaling drives growth and invasion of a malignant tumor model

| PRJNA291026 | ENA

Genome-wide binding of Sd and Yki in imaginal discs

Project description:The transcription cofactor Yki drives growth and proliferation in part by controlling mitochondrial network formation. To determine if Yki and Sd are directly bound to DNA corresponding to mitochondrial genes, we used chromatin immunoprecipitation and whole genome tiling arrays (ChIP-chip) to identify regions bound by these factors in eye-antenna and wing imaginal discs. The supplementary .bed files contain all Yki or Sd binding sites (called at 5% FDR) in wing or eye-antenna imaginal discs, as well as shared Sd+Yki sites and associated target genes. Wing or eye-antenna imaginal discs ChIPped for Yki or Sd-GFP vs. input DNA from corresponding imaginal discs.

2012-10-03 | E-GEOD-26678 | biostudies-arrayexpress

Transcriptional profiling of neoplastically transformed and wild type wing imaginal discs of Drosophila

Project description:In Drosophila, homozygosity for tumor suppressors, like lethal giant larvae, lgl, results in neoplastic transformation of imaginal disc epithelium - characterized by loss of their apico-basal polarity, unrestricted growth and invasion into neighboring tissues/organs. In genetic mosaics, however, lgl mutant clones are eliminated shortly after their initiation by cell competition. On the other hand, lgl mutant clones generated in Minute (M) genetic background, which compromises cell competition from the neighboring wild type cells, display clonal progression and tissue invasion. To gain insight into the molecular players of fly tumorigensis we undertook genome-wide transcriptional profiling of neoplastically transformed mosaic wing imaginal discs where lgl- clones were induced in M genetic background. Mosaic wing imaginal discs carrying wild type (lgl+) clones, also generated in M genetic background, served as controls. Transcriptional profile revealed up-regulation of a number of signaling pathways, such as Hippo, Wnt, TGF-beta or EGFR. Transcriptional profile of lgl- mosaic imaginal discs therefore provides a useful resource for identification of genes/pathways that are functionally relevant for carcinogenesis

2011-06-08 | E-MEXP-2753 | biostudies-arrayexpress

Transcription profiling by array of Drosophila wild type and neoplastically transformed (lgl mutant) imaginal discs

Project description:In Drosophila, homozygosity for neoplastic tumor suppressors, like lethal giant larvae, lgl results in malignant transformation of all larval imaginal discs. To gain insight into the molecular players involved in fly tumorigenesis we undertook genome-wide transcriptional profiling of neoplastically transformed wing imaginal discs of lgl mutants. Wild type (Canton S) wing imaginal discs served as control. The transcriptional profile, for instance, revealed the misregulation of JNK and JAK-STAT signaling which is implicated in epithelial transformation in Drosophila. These transcriptional profiles, therefore, provide a useful resource for identification of genes/pathways that are functionally relevant for carcinogenesis.

2011-09-21 | E-MEXP-2920 | biostudies-arrayexpress

SmD3 protein interactome in Drosophila melanogaster wing imaginal discs

Project description:Screening for binding partners of the splicing factor SmD3 and changes in interaction upon depletion of the protein Ecdysoneless (Ecd) in the nubbin domain of third-instar larval wing imaginal discs.

2021-09-09 | PXD019761 | Pride

Hippo signaling instructs ectopic but not normal organ growth [Drosophila YkiHyper]

Project description:In order to study how ectopic Yki drives tissue overgrowth in Drosophila imaginal discs, we overexpressed the constitutively active Yki3SA and deleted wts in clones of cells in the entire eye-antennal imaginal disc, as well as specifically in eye disc proper cells using Optix-Gal4. Using the MARCM system allowed us to compare the effects of Yki3SA overexpression in wild-type and sd mutant clones.

2022-11-19 | GSE211458 | GEO

Transcriptome analysis of control (y w) and Paip1 mutant third instar larval wing imaginal discs

Project description:We report the genome-wide RNA profiling of third instar larval wing imaginal discs upon Paip1 mutation

2023-07-31 | GSE146531 | GEO

An ectopic network of transcription factors regulated by Hippo signaling drives growth and invasion of a malignant tumor model [larval imaginal discs (eye, wing and leg)]

Project description:Cancer cells have abnormal gene expression patterns, however, the transcription factors and the architecture of the regulatory network that drive cancer specific gene expression profiles is often not known. Here we studied a model of Ras-driven invasive tumorigenesis in Drosophila larval epithelial tissues and combined in vivo genetic analyses with high-throughput sequencing and computational modeling to decipher the regulatory logic of tumor cells. Surprisingly, we discovered that tumor specific gene expression is driven by a highly interconnected network composed of few transcription factors. These are: Stat, Mef2, the AP-4 homolog Cropped, the nuclear receptor Ftz-f1, the bHLH factors Myc and Taiman, and the AP-1 transcription factors Kayak, ATF-3, Pdp1, and dCEBPG. Many of these transcription factors are ectopically expressed and/or hyperactivated in human tumors. The members of this tumor master regulatory network are predicted to directly regulate the majority of the tumor specific gene expression profile. Similar to networks of master regulators that control organ development and cellular differentiation, there is a predicted high degree of co-regulation of target genes, and these network members are required in multiple eptihelia for tumor growth and invasiveness. We further found that Yki/Sd and bZIP/AP-1 factors, the downstream transcription factors of the Hippo and JNK pathways, initiate cellular reprogramming by activating several transcription factors of this network. Thus, modeling regulatory networks identified an ectopic yet highly ordered network of master regulators that control cancer cell specific gene expression. RNA-seq gene expression profiling across Drosophila 3rd instar larval imaginal discs (eye-antenna, wing and leg) in a hh driven tumor model, perturbations and controls.

2016-06-10 | E-GEOD-81272 | biostudies-arrayexpress

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