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ChipSeq of GS-TRa1 is Gad2CrexThraGS striatum

ABSTRACT: Whole striatum Chipseq from mice expressing a tagged TRalpha1 in GABAergic neurons only

ORGANISM(S): Mus musculus

PROVIDER: GSE143933 | GEO | 2020/01/31

REPOSITORIES: GEO

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ChipSeq of GS-TRa1 is Gad2CrexThraGS striatum

Project description:ChipSeq of GS-TRa1 is Gad2CrexThraGS striatum

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RNAseq of whole striatum from hypothyroid mice, and hypothyroid mice treated with thyroid hormone for 2 days.

Project description:Striatum in rich in GABAergic neurons which require thyroid hormone for their maturation. We used propyl thio uracyl to make mice hypothyroid, and then restored the hormonal level using thyroid hormone. This provided 3 groups of mice for striatum RNAseq analysis. Our results point to GABAergic neurons as direct targets of thyroid hormone during brain development and suggest that many defects seen in hypothyroid brains may be secondary to GABAergic neuron malfunction.

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Expression data from Drd1a and Drd2 expressing neurons in striatum and cortex, at 6 weeks and 2 years of age

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Project description:We performed a study of gene expression changes that occur during mouse aging in the striatum and cortex in specific neuronal populations. Using translating ribosome afifnity purificaiton, we captured cell type-specific mRNAs from Drd1a-expressing cortical neurons, Drd1a-expressing striatal neurons, Drd2-expressing cortical neurons, and Drd2-expressing striatal neurons. 31 total samples were anlayzed. We generated the followinf pairwise comparisons: Old (2 years) vs young (6 weeks) Drd1a expressing cortical cells; old (2 years) vs young (6 weeks) Drd2 expressing cortical cells; old (2 years) vs young (6 weeks) Drd1a expressing striatal cells; old (2 years) vs young (6 weeks) Drd2 expressing striatal cells. We used a restriction of Benjamini-Hochberg FDR <0.05, and a fold-change restriction of 1.2-fold.

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Project description:It is reported that the transplantation of dopaminergic (DA) progenitors derived from pluripotent stem cells improves the behavior of Parkinson's disease (PD) model animals. However, the number of survived DA neurons was reported to be about 10% of the transplanted cells. This low survivability limits the clinical application of this stem cell-based therapy for PD. Recently, it was reported that zonisamide (ZNS) increased the number of survived DA neurons upon the transplantation of mouse induced pluripotent stem (iPS) cell-derived DA progenitors in the mouse striatum. It is not known, however, whether ZNS exerts the same effect on human DA neurons. We induced DA progenitors from human iPS cells and transplanted them into the rat striatum with daily administration of ZNS. The number of survived DA neurons was evaluated one and four months after transplantation by immunohistochemistry. To assess the mechanism of action of ZNS, we performed a microarray analysis to compare the gene expression profile in striatum treated with or without ZNS. The immunofluorescense study at one and four months revealed that the number of survived DA neurons was significantly increased with the administration of ZNS. The microarray analysis revealed that the expression of Slitrk6 was up-regulated in rat striatum treated with ZNS. SLIT and NTRK like protein 6 (SLITRK6) was expressed by cholinergic neurons in the striatum. In addition, survival and neurite extension were enhanced when human iPS cell-derived DA progenitors were cultured on SLITRK6-expressing HEK293T cells. ZNS promotes the survival of DA neurons after the transplantation of human iPS cell-derived DA progenitors in the rat striatum. SLITRK6 is suggested to be involved in this supportive effect of ZNS by modulating the environment of the host brain.

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Expression changes in the absence of miR-128 in striatal D1-receptor positive neurons

Project description:MicroRNA regulates protein expression of cells by repressing translation of specific target messenger transcripts. Loss of the neuron specific microRNA miR-128 in Dopamine D1-receptor expressing neurons in the murine striatum (D1-MSNs) lead to increased neuronal excitability, locomotor hyperactivity and fatal epilepsy. To examine expression changes in the absence of miR-128 in D1-MSNs, we used mice expressing EGFP-tagged ribosomes in D1-MSNs with either D1-MSN-specific homozygous deletion of miR-128-2 locus or no deletion. Transcripts co-immunoprecipitated with tagged ribosomes were analyzed by microarray. 9 mutant animals ( D1-MSN-tagged ribosome; D1-MSN specific miR-128-2 homozygous deletion) and 7 age matched littermate control animals (D1-MSN-tagged ribosome only).

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chipseq

Project description:chipseq data

| PRJEB39779 | ENA