Effect of quantum dots on the biological behavior of the EJ human bladder urothelial carcinoma cell line.
Mol Med Rep
; 12(4): 6157-63, 2015 Oct.
Article
em En
| MEDLINE
| ID: mdl-26239945
ABSTRACT
Quantum dots (QDs) are a type of fluorescent label with applications in biological molecules, cells and in vivo imaging. The current study investigated the effect of QDs on the toxicity, proliferation, migration and invasion of the EJ human bladder cancer cell line in vitro. The cell counting kit8 test was used to measure the survival rate of EJ cells following incubation with varying concentrations of QDs. Additionally, the effect of QDs on tumor cell migration and invasion was evaluated using the Transwell chamber assay, and cell proliferation rate was assessed using a hemocytometer. Data from the current study demonstrated no significant differences in survival rate between the experimental and control groups with the conventionally used concentrations (5, 10 and 20 nM) of QD605 (P>0.05). However, with high concentrations of QD605 (40 and 80 nM), significant differences were observed (P<0.001). The survival rate of EJ cells, however, remained at 92.6%. In addition, no significant differences were observed between the EJ cells labeled with transactivator of transcription (TAT)QD605 and the unlabeled EJ cells with regard to proliferation, migration and invasion (P>0.05). Thus, the results of the current study indicate that QDs exhibit a certain degree of influence on the activity of the EJ bladder cancer cell line at high concentrations. However, at the concentrations that QDs are conventionally used, there was little impact on the survival of the EJ cells. In addition, the proliferation, migration and invasion abilities of the EJ cells were not affected by TATQDs. Therefore, the peptideconjugated QDs have potential to be applied in the imaging and tracking of live cells in vitro and of animals in vivo. Notably, QDs may provide the foundation for a novel, noninvasive imaging strategy for the early diagnosis of tumors.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Bexiga Urinária
/
Carcinoma de Células de Transição
/
Pontos Quânticos
Tipo de estudo:
Screening_studies
Limite:
Humans
Idioma:
En
Revista:
Mol Med Rep
Ano de publicação:
2015
Tipo de documento:
Article