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Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice (II)

ABSTRACT: Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice (II)

PROVIDER: PRJNA682213 | ENA |

REPOSITORIES: ENA

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Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice (II)

Project description:Translating Ribosome Affinity Purification results in non specific RNA binding to the immunoprecipitation matrix, even in mice not expressing cell specific GFP labelled ribosomal protein L10a. This creates false positive enriched transcripts in our datasets. To determine which RNA transcripts bind non specifically to the immunoprecipitation matrix, preoptic area punches were collected from young and adult mice that do not express L10a-GFP. Also, included was a positive control (GnRH CRE x floxed L10a-GFP mice) to ensure that the TRAP procedure was enriching for GnRH neuron specific transcripts as previously described. Four GnRH depleted supernatant RNA samples from the previous study were also included to aid comparison of the two sequencing runs.

2020-12-02 | GSE162558 | GEO

Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice (I)

Project description:Polycystic ovary syndrome (PCOS) is the most common form of infertility in women. The causes of PCOS are not yet understood and both genetics and early-life exposure have been considered as candidates. With regard to the latter, circulating androgens are elevated in mid-late gestation in women with PCOS, potentially exposing offspring to elevated androgens in utero; daughters of women with PCOS are at increased risk for developing this disorder. Consistent with these clinical observations, prenatal androgenization (PNA) of several species recapitulates many phenotypes observed in PCOS. There is increasing evidence that symptoms associated with PCOS, including elevated luteinizing hormone (LH) (and presumably gonadotropin-releasing hormone (GnRH)) pulse frequency emerge during the pubertal transition. We utilized translating ribosomal affinity purification coupled with RNA sequencing to examine GnRH neuron mRNAs from prepubertal (3wk) and adult female control and PNA mice. Prominent in GnRH neurons were transcripts associated with protein synthesis and cellular energetics, in particular oxidative phosphorylation. The GnRH neuron transcript profile was affected more by the transition from prepuberty to adulthood than by PNA treatment, however PNA did change the developmental trajectory of GnRH neurons. This included families of transcripts related to both protein synthesis and oxidative phosphorylation, which were more prevalent in adults than in prepubertal mice but were blunted in PNA adults. These findings suggest that prenatal androgen exposure can program alterations in the translatome of GnRH neurons, providing a mechanism independent of changes in the genetic code for altered expression.

2020-10-13 | GSE155314 | GEO

Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice

Project description:Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice

| PRJNA682209 | ENA

Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice (I)

Project description:Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice (I)

| PRJNA649291 | ENA

Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice.

Project description: Not available

| S-EPMC7583650 | biostudies-literature

Prenatal Androgenization Alters the Development of GnRH Neuron and Preoptic Area RNA Transcripts in Female Mice

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

2020-12-02 | GSE162563 | GEO

Expression data of immortlized GnRH neuron cell lines

Project description:During development, gonadotropin releasing hormone (GnRH) neurons are born in the nasal placode and migrate to the hypothalamus, where they position to regulate sexual reproduction. Defective GnRH neuron development may lead to GnRH deficiency (GD) which is characterized by absent or delayed puberty. Several GD causative genes have been identified so far, but half of the cases are still idiopathic. The identification of candidate genes is also hampered by the difficulty in isolating and studying GnRH neurons, which are small in number, develop in a short developmental window and lack specific markers. Immortalized murine cell lines have been developed in past years. Of interest, GT1-7 represent hypothalamic post-migratory neurons, whereas GN11 cells represent GnRH neurons blocked at an early stage of their migration. Here, we obtained the transcriptomic profile of Gn11 abnd GT1-7 cells, representing GnRH neurons at an immature and mature developmental stage, respectively.

2023-02-28 | GSE174902 | GEO

TRAPSeq identifies transcripts enriched/de-enriched in mouse GnRH neurons.

Project description:We utilized translating ribosome affinity purification (TRAP) coupled with RNA sequencing to examine mRNAs of GnRH neurons in adult intact and gonadectomized (GDX) male and female mice. TRAP produces one RNA fraction enhanced for GnRH neuron transcripts and one RNA fraction depleted. cDNA libraries were created from each fraction and 50-base, paired-end sequencing done and differential expression (enhanced fraction/depleted fraction) determined with a threshold of >1.5 or <0.66 fold (false discovery rate p≤0.05). A core of ~840 genes were differentially expressed in GnRH neurons in all treatments, including enrichment for Gnrh1 (~40 fold), and genes critical for GnRH neuron and/or gonadotrope development. In contrast, non-neuronal transcripts were not enriched or were de-enriched. Several epithelial markers were also enriched, consistent with the olfactory epithelial origins of GnRH neurons. Interestingly, many synaptic transmission pathways were de-enriched, in accordance with relatively low innervation of GnRH neurons. The most striking difference between intact and GDX mice of both sexes was a marked down regulation of genes associated with oxidative phosphorylation and upregulation of glucose transporters in GnRH neurons from GDX mice.

2018-04-18 | GSE110042 | GEO

Transcription profiling of mouse bed nucleus of the stria terminalis and medial preoptic area

Project description:The effect of photoperiod on gene expression was assessed in punch samples of the bed nucleus of the stria terminalis and medial preoptic area. Long day mice were housed in 16L:8D and short day mice were housed in 8L:16D. Experiment Overall Design: For the medial preoptic area, independent samples were collected from long day (n=3) and short day (n=3) mice. For the bed nucleus of the stria terminalis independent samples were collected from long day (n=3) and short day (n=2) mice.

2008-06-14 | E-GEOD-5795 | biostudies-arrayexpress

Acute (2 hr) response to rxLeptin injection in preoptic area/hypothalamus/pituitary of juvenile Xenopus laevis

Project description:Leptin binding to the leptin receptor (LepR) causes rapid signaling to the nucleus. We investigated the early (2 hr) transcriptional response to acute leptin injectio (intracerebroventricular) in the preoptic area/hypothalamus/pituitary of juvenile Xenopus laevis frogs. Frogs were given i.c.v. injections of 0.6% saline or recombinant X. laevis leptin (rxLeptin; 20 ng/g BW) and 2 hrs later killed and the preoptic area/hypothalamus/pituitary dissected.

2014-08-05 | E-GEOD-60053 | biostudies-arrayexpress

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