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- W4220788051 endingPage "109024" @default.
- W4220788051 startingPage "109024" @default.
- W4220788051 abstract "Hypofunction of N-methyl-d-aspartate receptors (NMDAR) is a key component in the pathophysiology of schizophrenia. Alterations in the regulation of NMDARs by microRNAs (miRNAs) are possible since numerous miRNAs are differentially expressed in post mortem schizophrenia brain samples. We screened the miRNAs that are altered in schizophrenia against the targets, Grin2A and Grin2B subunits of NMDAR using bioinformatic tools. Among the predicted miRNAs some interacted with the 3'-UTR sequences of Grin2A (miR-296, miR-148b, miR-129-2, miR-137) and Grin2B (miR-296, miR-148b, miR-129-2, miR-223) in dual luciferase assays. This was supported by downregulation of the GluN2B protein in primary hippocampal neurons upon overexpressing Grin2B targeting miRNAs. In two models of schizophrenia-pharmacological MK-801 model and neurodevelopmental methylazoxymethanol acetate (MAM) model which showed cognitive deficits - protein levels of GluN2A and GluN2B were downregulated but their transcript levels were upregulated. miR-296-3p, miR-148b-5p and miR-137-3p levels showed upregulation in both models which could have interacted with Grin2A/Grin2B transcripts resulting in translational arrest. In MAM model, reciprocal changes in the expression of the 3p and 5p forms of miR-148b and miR-137 were observed. Expression of some genes implicated in schizophrenia such as neuregulin 1, BDNF and CaMKIIα, were also altered in these models. This is the first report showing downregulation of GluN2A and GluN2B by miR-296, miR-148b and miR-129-2 in vitro and association between them in animal models. Mining miRNAs regulating NMDA receptors might give insights into the pathophysiology of this disorder, providing avenues in therapeutics." @default.
- W4220788051 created "2022-04-03" @default.
- W4220788051 creator A5032214662 @default.
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- W4220788051 date "2022-06-01" @default.
- W4220788051 modified "2023-10-06" @default.
- W4220788051 title "Differential expression of miR-148b, miR-129-2 and miR-296 in animal models of schizophrenia-Relevance to NMDA receptor hypofunction" @default.
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- W4220788051 doi "https://doi.org/10.1016/j.neuropharm.2022.109024" @default.
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