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Tissue overgrowth induced by coexpression of the progenitor genes hth/MEIS1 and tsh/TSHZ results from an imbalance in the estrogen response pathway in Drosophila [FAIRE-Seq]

ABSTRACT: Analysis of third instar eye-antennal Drosophila imaginal discs with forced expression of hth, tsh or hth+tsh in the eye using an eye-specific GAL4 driver (optix2.3-GAL4). Forced maintenance of hth+tsh expression (but not of any of the two alone) results in overgrowth and aberrant cell differentiation. Results provide insight into new targets of hth+tsh.

ORGANISM(S): Drosophila melanogaster

PROVIDER: GSE65250 | GEO | 2017/08/31

SECONDARY ACCESSION(S): PRJNA273499

REPOSITORIES: GEO

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Tissue overgrowth induced by coexpression of the progenitor genes hth/MEIS1 and tsh/TSHZ results from an imbalance in the estrogen response pathway in Drosophila [RNA-Seq]

Project description:Analysis of third instar eye-antennal Drosophila imaginal discs with forced expression of hth, tsh or hth+tsh in the eye using an eye-specific GAL4 driver (optix2.3-GAL4). Forced maintenance of hth+tsh expression (but not of any of the two alone) results in overgrowth and aberrant cell differentiation. Results provide insight into new targets of hth+tsh.

2017-08-31 | GSE65251 | GEO

Expression data from eye antennal imaginal disc expressing either activated Ras or secreted Spitz

Project description:We have used microarrays to identify genes expressed and required for the second mitotic wave (SMW) during eye development. Eye discs expressing Spitz under the control of GMR Gal4 have no SMW as Spitz promotes G1 arrest, ectopic differentiation also occures. To control for the ectopic differentiation, Spi expressing eye antennal discs were compared to eye antennal discs expressing activated RasV12. In discs expresseding RasV12 under the control of GMRGal4 the SMW takes place normally prior to any ectopic differentiation. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during this process. Keywords: Comparison of eye antennal discs of two different over expression genotypes

2007-11-14 | GSE6300 | GEO

Transcription profiling of Drosophila eye antennal imaginal disc expressing either activated Ras or secreted Spitz

Project description:We have used microarrays to identify genes expressed and required for the second mitotic wave (SMW) during eye development. Eye discs expressing Spitz under the control of GMR Gal4 have no SMW as Spitz promotes G1 arrest, ectopic differentiation also occures. To control for the ectopic differentiation, Spi expressing eye antennal discs were compared to eye antennal discs expressing activated RasV12. In discs expresseding RasV12 under the control of GMRGal4 the SMW takes place normally prior to any ectopic differentiation. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during this process. Experiment Overall Design: Drosophila eye antennal imaginal discs expressing either UAS RasV12 or UAS Spi under the control of GMRGal4 were dissected from 3rd instar larvae for RNA extraction and hybridization on Affymetrix microarrays.

2008-06-14 | E-GEOD-6300 | biostudies-arrayexpress

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

Tissue overgrowth induced by coexpression of the progenitor genes hth/MEIS1 and tsh/TSHZ results from an imbalance in the estrogen response pathway in Drosophila

Project description:This SuperSeries is composed of the SubSeries listed below.

2017-08-31 | GSE65252 | GEO

Atonal and Senseless perturbations in Drosophila melanogaster eye-antennal imaginal discs.

Project description:The goal of this study is to identify co-expressed genes downstream of Atonal and Senseless. These gene lists are used as candidate target genes (technically: as foreground sets) in computational predictions of cis-regulatory elements using the cisTargetX method (http://med.kuleuven.be/cme-mg/lng/cisTargetX). Together, the gene expression results and cis-regulatory predictions, yield a gene regulatory network underlying the early events in retinal differentiation. Predicted cis-regulatory interactions have been validated extensively in vivo using enhancer reporter assays and genetic perturbations. Six samples were analyzed for Atonal gain-of-function (GOF) in the eye-antennal imaginal discs of third instar larvae of Drosophila melanogaster, namely three biological repeats for two different Gal4 drivers (Gal4/7 and AtoGal), crossed with UASato. Three samples were analyzed for Atonal loss-of-function (LOF) in the eye-antennal imaginal discs, namely three biological repeats of ato-/- larvae. Three samples were analyzed for Senseless GOF, namely three biological repeats of atoGal4 crossed with UASsens. Finally, eight control samples were analyzed, namely two biological repeats of four different lines (atoGal4, Gal4/7, UASato, and cantonS wild type).

2010-07-29 | E-GEOD-16713 | biostudies-arrayexpress

Expression data from L3 Drosophila antennal-eyediscs

Project description:Growth of the drosophila eye imaginal discs is controlled by the activation of Notch in the dorsal-ventral boundary. Overexpression in the eye disc of the Notch ligand Delta together with lola and pipsqueak from the GS(2)88A8 line induces tumoral growth. We used microarray to analyze the expression profile of tumoral discs. Antennal-eye discs of Drosophila L3 larvae were selected for RNA extraction and hybridization on Affymetrix microarrayas. Two genetic conditions were analyzed: tumoral eye discs (ey-Gal4 GS(2)88A8 UAS-Dl) and control eye discs (GS(2)88A8 UAS-Dl). Three different biological replicates of each condition, each one consisting on 300 hundred pairs of eye discs, were analyzed.

2012-02-20 | E-GEOD-35471 | biostudies-arrayexpress

Transcription profiling of rat thyroid cell lines after TSH-stimulation

Project description:A time-course analysis of TSH-stimulation in two rat thyroid cell lines (FRTL5 and FRT/TSHR) was performed. The expression levels of 8,784 transcripts were measured at three different time points, i.e. before (0), 30 minutes (30m) and 17 hours (17h) after TSH stimulation, by means of Affymetrix RG-U34A arrays. Experiment Overall Design: 2 cell lines, 3 time points and 3 biological replicates per time point were analyzed

2008-06-13 | E-GEOD-5115 | biostudies-arrayexpress

Time course analysis of TSH-stimulated rat thyroid cell lines

2006-10-01 | GSE5115 | GEO

Tag-seq in eye-antennal and wing imaginal discs of D.melanogaster, D.yakuba, and D.virilis; RNA-seq in wild-type and glass mutant D.melanogaster eye-antennal imaginal discs.

Project description:In this study we use Tag-sequencing in eye-antennal and wing imaginal discs across Drosophila species to determine a set of conserved eye-specific developmental genes. Next, we perform motif discovery analysis using the tool i-cisTarget, to depict the core gene developmental network underlying compound eye photoreceptor. The Glass position weight matrix appears as the most highly overrepresented motif, thus positioning Glass as a master regulator in compound eye photoreceptor development. Differential gene expression analysis by RNA-seq in D.melanogaster wild-type eye-antennal versus glass mutant [gl 60j] shows that the majority of our predicted Glass targets show strong downregulation in the glass mutant. This SuperSeries is composed of the following subset Series: GSE39781: RNA-seq in wild-type and glass mutant eye-antennal discs in Drosophila melanogaster GSE39782: Tag-seq profiling in eye-antennal and wing imaginal discs of D. melanogaster, D. yakuba and D. virilis

2012-09-21 | E-GEOD-39784 | biostudies-arrayexpress

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