Transcriptomic gene-network analysis of exposure to silver nanoparticle reveals potentially neurodegenerative progression in mouse brain neural cells

Ho Chen Lin, Chin Lin Huang, Yuh Jeen Huang, I. Lun Hsiao, Chung Wei Yang, Chun Yu Chuang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Silver nanoparticles (AgNPs) are commonly used in daily living products. AgNPs can induce inflammatory response in neuronal cells, and potentially develop neurological disorders. The gene networks in response to AgNPs-induced neurodegenerative progression have not been clarified in various brain neural cells. This study found that 3-5 nm AgNPs were detectable to enter the nuclei of mouse neuronal cells after 24-h of exposure. The differentially expressed genes in mouse brain neural cells exposure to AgNPs were further identified using Phalanx Mouse OneArray® chip, and permitted to explore the gene network pathway regulating in neurodegenerative progression according to Cytoscape analysis. In focal adhesion pathway of ALT astrocytes, AgNPs induced the gene expression of RasGRF1 and reduced its downstream BCL2 gene for apoptosis. In cytosolic DNA sensing pathway of microglial BV2 cells, AgNPs reduced the gene expression of TREX1 and decreased IRF7 to release pro-inflammatory cytokines for inflammation and cellular activation. In MAPK pathway of neuronal N2a cells, AgNPs elevated GADD45α gene expression, and attenuated its downstream PTPRR gene to interfere with neuron growth and differentiation. Moreover, AgNPs induced beta amyloid deposition in N2a cells, and decreased PSEN1 and PSEN2, which may disrupt calcium homeostasis and presynaptic dysfunction for Alzheimer's disease development. These findings suggested that AgNPs exposure reveals the potency to induce the progression of neurodegenerative disorder.

Original languageEnglish
Pages (from-to)289-299
Number of pages11
JournalToxicology in Vitro
Volume34
DOIs
Publication statusPublished - Aug 1 2016
Externally publishedYes

Fingerprint

Gene Regulatory Networks
Electric network analysis
Silver
Nanoparticles
Brain
Genes
Gene expression
Gene Expression
Amyloid
Neurons
Focal Adhesions
Adhesion
Chemical activation
Nervous System Diseases
Apoptosis
Cytokines
Astrocytes
Neurodegenerative Diseases
Calcium
Alzheimer Disease

Keywords

  • Alzheimer's disease
  • Beta amyloid
  • Gene network
  • Neurodegenerative disease
  • Silver nanoparticle

ASJC Scopus subject areas

  • Toxicology

Cite this

Transcriptomic gene-network analysis of exposure to silver nanoparticle reveals potentially neurodegenerative progression in mouse brain neural cells. / Lin, Ho Chen; Huang, Chin Lin; Huang, Yuh Jeen; Hsiao, I. Lun; Yang, Chung Wei; Chuang, Chun Yu.

In: Toxicology in Vitro, Vol. 34, 01.08.2016, p. 289-299.

Research output: Contribution to journalArticle

Lin, Ho Chen ; Huang, Chin Lin ; Huang, Yuh Jeen ; Hsiao, I. Lun ; Yang, Chung Wei ; Chuang, Chun Yu. / Transcriptomic gene-network analysis of exposure to silver nanoparticle reveals potentially neurodegenerative progression in mouse brain neural cells. In: Toxicology in Vitro. 2016 ; Vol. 34. pp. 289-299.
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