Unknown,Transcriptomics,Genomics,Proteomics

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Systems biology approaches reveal low-dose effects of nanoparticles


ABSTRACT: Here, we show that systems biology approaches can uncover mechanisms underlying cellular responses to nanomaterials. Using RNA Seq, we found that cationic nanoparticles are capable of triggering down-regulation of cell cycle-related genes in primary human bronchial epithelial cells at doses that do not elicit acute cytotoxicity. Bioinformatics analyses implicated NF-kappaB as a putative transcriptional regulator and functional assays confirmed that cationic nanoparticles caused NF-kappaB-dependent cell cycle arrest. Our study demonstrates the feasibility of applying systems biology tools to assess cellular responses to nanomaterials, not least at low doses.

INSTRUMENT(S): Illumina HiSeq 2500, Computater Servers UPPMAX-SNIC., NanoDrop spectrophotometer (NanoDrop Technologies, Wilmington, DE), Dynamic light scattering and zeta potential. The experiments were performed on a Malvern Zetasizer NanoZS instrument using a He-Ne laser (Max, 5 mW) at 633 nm., Illumina Tru-seq RNA

ORGANISM(S): Homo sapiens

SUBMITTER: Pekka Kohonen 

PROVIDER: E-MTAB-2397 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Next-generation sequencing reveals low-dose effects of cationic dendrimers in primary human bronchial epithelial cells.

Feliu Neus N   Kohonen Pekka P   Ji Jie J   Zhang Yuning Y   Karlsson Hanna L HL   Palmberg Lena L   Nyström Andreas A   Fadeel Bengt B  

ACS nano 20141230 1


Gene expression profiling has developed rapidly in recent years with the advent of deep sequencing technologies such as RNA sequencing (RNA Seq) and could be harnessed to predict and define mechanisms of toxicity of chemicals and nanomaterials. However, the full potential of these technologies in (nano)toxicology is yet to be realized. Here, we show that systems biology approaches can uncover mechanisms underlying cellular responses to nanomaterials. Using RNA Seq and computational approaches, w  ...[more]

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