Gene expression profile (RNAseq) in atrophic gastrocnemius muscle of wild type, ZEB1 and ZEB2 knock out mice
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ABSTRACT:
PROVIDER: PRJNA744393 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15058305_1.fastq.gz | Fastqsanger.gz | |||
| SRR15058305_2.fastq.gz | Fastqsanger.gz | |||
| SRR15058306_1.fastq.gz | Fastqsanger.gz | |||
| SRR15058306_2.fastq.gz | Fastqsanger.gz | |||
| SRR15058307_1.fastq.gz | Fastqsanger.gz |
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Project description:Purpose: Characterize the gene expression profile of gastrocnemius muscle in wild type, ZEB1 and ZEB2 knock out mice subjected to 36 hours of fasting Methods: RNA sequencing of RNA from total gastrocnemius muscle after 36h of fasting from the three genotypes used in this study: ZEB1-control, ZEB1-KO, ZEB2-control, ZEB2-KO. Males and females were used from the four genotype (ZEB1flx/flx, ZEB1flx/flx;HSACre, ZEB2flx/flx, ZEB2flx/flx;HSACre). Results: Knockout of ZEB1 or ZEB2 results in differential gene expression in atrophic gastrocnemius muscle Conclusions: Comparison of wild type, ZEB1 and ZEB2 KO muscles displayed differential gene expression profiles after fasting
2023-09-28 | GSE179619 | GEO
Project description:We have demonstrated that the oncogenic activation of B-RAF (using a truncated delta-BRAF-ER version inducible with tamoxifen) in the melan-a melanocyte cell line triggers the activation of Zeb1 and Twist1 at the expanse of Zeb2 and Snail2. Enforced maintenance of Zeb2 or Snail2 expression reduces the B-RAF oncogenic potential while ectopic expression of Zeb1 or Twist1 cooperates with B-RAF in melan-a cell transformation. To get an insight into the properties of these embryonic transcription factors, gene expression profiles of melan-a-derived cell lines either expressing a non-activated B-RAF (- tamoxifen) or an activated BRAF (+ tamoxifen) alone or in combination with Snail2, Zeb2, Twist1 or Zeb1 have been established. Melan-a cells were transduced with an activated version of BRAF(delta-BRAF-ER, inducible with tamoxifen) alone or in combination with SNAIL2, ZEB2, ZEB1 or TWIST1. Gene expression profiles before or following BRAF activation (alone or in combination with the embryonic transcription factors) were determined. Ectopic expression of SNAIL2, ZEB2, ZEB1 or TWIST1 on BRAF-target genes in the murine melanocytic melan-a cell line.
2013-10-29 | E-GEOD-39030 | biostudies-arrayexpress
Project description:Throughout most of pregnancy, uterine quiescence is maintained by increased progesterone receptor (PR) transcriptional activity, while spontaneous labor is initiated/facilitated by a concerted series of biochemical events that activate inflammatory pathways and negatively impact PR function. In this study, we uncovered a new regulatory pathway whereby miRNAs serve as hormonally-modulated and conserved mediators of contraction-associated genes in the pregnant uterus from mouse to human. Using miRNA and gene expression microarray analyses of uterine tissues, we identified a conserved family of miRNAs, the miR-200 family, that is highly induced at term in both mice and humans, as well as two coordinately downregulated targets, zinc finger E-box binding homeobox proteins, ZEB1 and ZEB2, which act as transcriptional repressors. We also observed upregulation of the miR-200 family and downregulation of ZEB1 and ZEB2 in two different mouse models of preterm labor. We further demonstrated that ZEB1 is directly upregulated by the action of P4/PR at the ZEB1 promoter. Excitingly, we observed that ZEB1 and ZEB2 inhibit expression of the contraction- associated genes, oxytocin receptor and connexin-43 and block oxytocin-induced contractility in human myometrial cells. Together, these findings implicate the miR-200 family and their targets ZEB1 and ZEB2 as novel progesterone/PR- mediated regulators of uterine quiescence and contractility during pregnancy and labor, and shed new light on the molecular mechanisms involved in preterm birth. RNA was purified from mouse myometrium (miRNeasy kit, Qiagen). miRNA microarray was performed (LC Sciences) on 18 biological replicates of murine myometrium at 15.5 dpc and an equal number of replicates at 18.5 dpc. Gene expression microarray assays were performed (UT Southwestern Medical Center) on the same 36 samples as detailed further in SI Materials and Methods.
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Project description:Throughout most of pregnancy, uterine quiescence is maintained by increased progesterone receptor (PR) transcriptional activity, while spontaneous labor is initiated/facilitated by a concerted series of biochemical events that activate inflammatory pathways and negatively impact PR function. In this study, we uncovered a new regulatory pathway whereby miRNAs serve as hormonally-modulated and conserved mediators of contraction-associated genes in the pregnant uterus from mouse to human. Using miRNA and gene expression microarray analyses of uterine tissues, we identified a conserved family of miRNAs, the miR-200 family, that is highly induced at term in both mice and humans, as well as two coordinately downregulated targets, zinc finger E-box binding homeobox proteins, ZEB1 and ZEB2, which act as transcriptional repressors. We also observed upregulation of the miR-200 family and downregulation of ZEB1 and ZEB2 in two different mouse models of preterm labor. We further demonstrated that ZEB1 is directly upregulated by the action of P4/PR at the ZEB1 promoter. Excitingly, we observed that ZEB1 and ZEB2 inhibit expression of the contraction- associated genes, oxytocin receptor and connexin-43 and block oxytocin-induced contractility in human myometrial cells. Together, these findings implicate the miR-200 family and their targets ZEB1 and ZEB2 as novel progesterone/PR- mediated regulators of uterine quiescence and contractility during pregnancy and labor, and shed new light on the molecular mechanisms involved in preterm birth.
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Project description:We have demonstrated that the oncogenic activation of B-RAF (using a truncated delta-BRAF-ER version inducible with tamoxifen) in the melan-a melanocyte cell line triggers the activation of Zeb1 and Twist1 at the expanse of Zeb2 and Snail2. Enforced maintenance of Zeb2 or Snail2 expression reduces the B-RAF oncogenic potential while ectopic expression of Zeb1 or Twist1 cooperates with B-RAF in melan-a cell transformation. To get an insight into the properties of these embryonic transcription factors, gene expression profiles of melan-a-derived cell lines either expressing a non-activated B-RAF (- tamoxifen) or an activated BRAF (+ tamoxifen) alone or in combination with Snail2, Zeb2, Twist1 or Zeb1 have been established.
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