Electrochemical cell-based chip for the detection of toxic effects of bisphenol-A on neuroblastoma cells.
A cell-based chip was fabricated for the electrochemical detection of the dose-dependent effects of bisphenol-A (BPA) on neuroblastoma cells (SH-SY5Y), which showed dual-mode correlation as a standard curve. Toxicity assessment of BPA became very important in environmental toxicants detection since BPA can be reached out easily from various common plastic-based product and give negative cellular effects on living organism. Cell chip was fabricated by immobilizing cells on C(RGD)(4) peptide coated electrode to detect the cytotoxicity of BPA electrochemically. Redox properties in living cells were determined by cyclic voltammetry using a home-made three-electrode system, and the cathodic peak current (I(pc)) was used as a parameter for measurement of the effect of BPA on cell viability. The peak current, I(pc) value increased with the concentration of BPA up to 300 nM and then decreased because of the stimulation of cancer cell activity at the concentration of BPA below 300nM and cytotoxicity at the concentration of BPA above 300 nM, respectively. MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and optical microscopy-based morphological analysis confirmed the results of electrochemical study. This dual-mode correlation between the concentration of BPA and voltammetric signal intensity should be firstly considered to analyze its dose-dependent stimulus and cytotoxic effects on neuroblastoma cells by cell chip.
Interdisciplinary Program of Integrated Biotechnology, Sogang University, Seoul, Republic of Korea.
Md Abdul
MA
Kafi
Tae-Hyung
TH
Kim
Jeung Hee
JH
An
Jeong-Woo
JW
Choi
D001559:Benzhydryl Compounds; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D018914:Cells, Immobilized / Q000166:cytology / Q000187:drug effects; D003603:Cytotoxins / Q000633:toxicity*; D055664:Electrochemical Techniques / Q000295:instrumentation* / Q000379:methods; D004785:Environmental Pollutants / Q000633:toxicity*; D004867:Equipment Design; D006801:Humans; D009842:Oligopeptides / Q000737:chemistry; D010636:Phenols / Q000633:toxicity*; D046888:Tissue Array Analysis / Q000295:instrumentation* / Q000379:methods; D000098826:Bisphenol A Compounds
D001559:Benzhydryl Compounds; D003603:Cytotoxins; D004785:Environmental Pollutants; D009842:Oligopeptides; D010636:Phenols; C047981:arginyl-glycyl-aspartic acid; C006780:bisphenol A; D000098826:Bisphenol A Compounds