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Role of Adipocyte Na,K-ATPase Oxidant Amplification Loop in Cognitive Decline and Neurodegeneration - Expression profiling in Liver and Fat

ABSTRACT: Role of Adipocyte Na,K-ATPase Oxidant Amplification Loop in Cognitive Decline and Neurodegeneration - Expression profiling in Liver and Fat

PROVIDER: PRJNA689815 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13361500_1.fastq.gz	Fastqsanger.gz
	SRR13361500_2.fastq.gz	Fastqsanger.gz
	SRR13361501_1.fastq.gz	Fastqsanger.gz
	SRR13361501_2.fastq.gz	Fastqsanger.gz
	SRR13361502_1.fastq.gz	Fastqsanger.gz

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Role of Adipocyte Na,K-ATPase Oxidant Amplification Loop in Cognitive Decline and Neurodegeneration

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Role of Adipocyte Na,K-ATPase Oxidant Amplification Loop in Cognitive Decline and Neurodegeneration - Expression profiling in Brain

Project description:Adipocyte-specific expression of Na,K-ATPase signaling antagonist, NaKtide, has been shown to ameliorate the pathophysiological consequences of obesity and improve diseased phenotype. Recent studies have established that the release of adipocytokines and other bioactive mediators in obesity contributes to neurodegeneration. This study utilizes a mechanistic approach and characterizes the hippocampal transcriptome in comparison with transcriptomic changes in liver, visceral and subcutaneous adipose tissue. RNAseq analysis in high fat diet fed transgenic mice showed large scale differential gene expression as well as modulation of several biological pathways in hippocampus, liver, visceral and subcutaneous adipose tissue, which were attenuated by doxycycline induced adipocyte specific NaKtide expression.

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Role of Adipocyte Na,K-ATPase Oxidant Amplification Loop in Cognitive Decline and Neurodegeneration

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

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Role of adipocyte Na,K-ATPase oxidant amplification loop in cognitive decline and neurodegeneration

Project description:Summary Recent studies suggest that a western diet may contribute to clinical neurodegeneration and dementia. Adipocyte-specific expression of the Na,K-ATPase signaling antagonist, NaKtide, ameliorates the pathophysiological consequences of murine experimental obesity and renal failure. In this study, we found that a western diet produced systemic oxidant stress along with evidence of activation of Na,K-ATPase signaling within both murine brain and peripheral tissues. We also noted this diet caused increases in circulating inflammatory cytokines as well as behavioral, and brain biochemical changes consistent with neurodegeneration. Adipocyte specific NaKtide affected by a doxycycline on/off expression system ameliorated all of these diet effects. These data suggest that a western diet produces cognitive decline and neurodegeneration through augmented Na,K-ATPase signaling and that antagonism of this pathway in adipocytes ameliorates the pathophysiology. If this observation is confirmed in humans, the adipocyte Na,K-ATPase may serve as a clinical target in the therapy of neurodegenerative disorders. Graphical abstract Highlights • Adipocytes induce phenotypical changes in neurodegeneration through adipocyte NKAL• Adipocyte specific NaKtide inhibited NKAL and improved systemic homeostasis• NaKtide improved adipocyte phenotype and improved markers of neurodegeneration• NaKtide improved genomic profile of hippocampus and adipose tissue in WD fed mice Molecular physiology; Neuroscience; Cell biology

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