RRC ID 69831
Author Haniu H, Tsukahara T, Matsuda Y, Usui Y, Aoki K, Shimizu M, Ogihara N, Hara K, Takanashi S, Okamoto M, Ishigaki N, Nakamura K, Kato H, Saito N.
Title DJ-1 as a potential biomarker for the development of biocompatible multiwalled carbon nanotubes.
Journal Int J Nanomedicine
Abstract BACKGROUND:In the present study, we investigated whether DJ-1 could serve as a biomarker for assessing the biocompatibility of multiwalled carbon nanotubes (MWCNTs), using the highly purified carbon nanotube, HTT2800.
METHODS:Using Western blot analysis, we determined DJ-1 protein levels in two different types of cells (one capable and the other incapable of HTT2800 endocytosis). Using quantitative real-time polymerase chain reaction, we also investigated the ability of purified nanotubes to alter DJ-1 mRNA levels.
RESULTS:We demonstrated that the DJ-1 protein concentration was reduced, regardless of the cytotoxic activity of intracellular HTT2800. Furthermore, HTT2800 decreased the DJ-1 mRNA levels in a dose-dependent manner. This decrease in DJ-1 mRNA levels was not observed in the case of Sumi black or cup-stacked carbon nanotubes.
CONCLUSION:These data indicate that modification of DJ-1 expression is caused by the cell response to MWCNTs. We conclude that DJ-1 is a promising candidate biomarker for the development of biocompatible MWCNTs.
Volume 6
Pages 2689-95
Published 2011-1-1
DOI 10.2147/IJN.S25471
PII ijn-6-2689
PMID 22114499
PMC PMC3218582
MeSH Biocompatible Materials / chemistry* Biocompatible Materials / pharmacology Biomarkers / analysis Cell Line, Tumor Cell Survival Down-Regulation / drug effects Humans Intracellular Signaling Peptides and Proteins / analysis* Intracellular Signaling Peptides and Proteins / genetics Intracellular Signaling Peptides and Proteins / metabolism Materials Testing / methods* Nanotubes, Carbon / chemistry* Oncogene Proteins / analysis* Oncogene Proteins / genetics Oncogene Proteins / metabolism Protein Deglycase DJ-1 RNA, Messenger / analysis Real-Time Polymerase Chain Reaction
IF 5.115
Resource
Human and Animal Cells THP-1(RCB1189) ACC-MESO-1(RCB2292)