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MiRNA expression data of rat prostate cancer tissue treated with OBP-801, novel HDAC inhibitor

ABSTRACT: miRNA expression was obtained from non-treated or OBP-801 treated TRAP rats which develop prostate cancer. The primary aim was to identify miRNAs which regulate prostate carcinogenesis induced by OBP-801.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE75020 | GEO | 2016/12/01

SECONDARY ACCESSION(S): PRJNA302229

REPOSITORIES: GEO

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Gene expression data of rat prostate cancer tissue treated with OBP-801, novel HDAC inhibitor

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Expression data of rat prostate cancer tissue treated with OBP-801, novel HDAC inhibitor

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Project description:To clarify the relationship between histone acetylation and miRNA expression, we performed miRNA arrays to detect histone deacetylase inhibitor (OBP-801) induced miRNA regulating AR expression in 22Rv1. Agilent-031181 Unrestricted Human miRNA Microarray (Agilent Technologies, Santa Clara, California) was used according to the manufacturerâs protocols.

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Project description:Background: N-Methyl-D-aspartate receptors (NMDAr), widely located around the central nervous system, are known to be involved in behavioral disorders. Dizocilpine (commonly referred to as MK-801) is a well known non-competitive NMDAr antagonist. Methods: We treated rats with intraperitoneal injection [0.08 (low-dose) and 0.16 (high-dose) mg/kg] of MK-801. In one experiment, 40 min after NaCl (vehicle control) and MK-801 (0.08 mg/kg) injection, electrocorticogram (ECoG) signals were analyzed. In the second experiment, 40 min post-injection, the whole brain of each animal was rapidly removed and separated into amyglada, cerebral cortex, hippocampus, hypothalamus, midbrain and ventral striatum) on ice, followed by analysis using a 4x44K DNA microarray chip. Results: Spectral analysis revealed that a single subcutaneous injection of MK-801 significantly and selectively augmented the power of spontaneous gamma and higher-frequency oscillations. The results from DNA microarray analysis of 4400 genes showed the largest number (up- and down- regulations) of gene expressions in the cerebral cortex (378), midbrain (376), hippocampus (375), ventral striatum (353), amygdala (301), and hypothalamus (201) under low-dose of MK-801. Under high-dose, ventral striatum (811) showed the largest number of gene expression changes. These genes represented... Conclusions: Our results reveal that MK-801 triggered i) an increase in the power of gamma oscillations, and ii) simultaneously caused very early changes in gene expressions in the rat brain, representing a first such inventory of gene expression profiles in brain after acute MK-801 treatment.

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Genome-wide DNA Microarray Analysis Unravels Rapid Changes in the Transcriptome of MK-801 treated Rat Brain

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