Aptamer-based and DNAzyme-linked colorimetric detection of cancer cells
Protein & Cell
;
(12): 842-846, 2010.
Artigo
em Inglês
| WPRIM
| ID: wpr-757434
ABSTRACT
This paper reports a novel method to detect human leukemic lymphoblasts (CCRF-CEM cells). While the aptamer of the cancer cells was employed as the recognition element to target cancer cells, peroxidase-active DNAzyme was used as the sensing element to produce catalysis-induced colorimetric signals. The elegant architecture integrating the aptamer and DNAzyme made it feasible to detect cancer cells easily and rapidly by the color change of the substrate for DNAzyme. Experimental results showed that 500 cells can well indicate the cancer, while as control, 250,000 Islet Island Beta cells only show tiny signals, suggesting that the method proposed in this paper has considerable sensitivity and selectivity. Furthermore, since it does not require expensive apparatus, or modification or label of DNA chains, the method we present here is also cost-effective and conveniently operated, implying potential applications in future cancer diagnosis.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Técnicas In Vitro
/
DNA de Neoplasias
/
Sequência de Bases
/
Técnicas Biossensoriais
/
Leucemia
/
Contagem de Células
/
Colorimetria
/
DNA Catalítico
/
Linhagem Celular Tumoral
/
Diagnóstico
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Protein & Cell
Ano de publicação:
2010
Tipo de documento:
Artigo
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