[Effects of Aptamer-siRNA Nucleic Acid Compound on Growth and Apoptosis in Myeloid Leukemia Cell Line K562].
Zhongguo Shi Yan Xue Ye Xue Za Zhi
; 23(2): 381-5, 2015 Apr.
Article
en Zh
| MEDLINE
| ID: mdl-25948189
ABSTRACT
OBJECTIVE:
To explore the effects of aptamer-siRNA nucleic acid compound on growth and apoptosis in myeloid leukemia cell line K562.METHODS:
the changes of cellular morphology and structure were observed by using fluorescence microscope, laser confocal microscope, JEM-4000EX transmission electron microscopy; MTT assay were performed to evaluate the sensibility of K562 cells to aptamer-siRNA compound, the apoptosis was detected by DNA gel electro-phoresis.RESULTS:
The remarkably changes of morphology and structure of K562 cells treated with 200 µmol/L aptamer-siRNA were observed under fluorescence microscopy and electromicroscopy. As compared with control, the aptamer-siRNA compound showed more inhibitory effect on K562 cells and there was significant difference (P<0.05). The MTT assay showed that the IC50 value of aptamer-siRNA compound for K562 cells was 150 µmol/L. According to agarose gel electrophoresis observation, when the aptamer-siRNA compound showed effect on K562 cells, the typical DNA lader could be observed.CONCLUSION:
The aptamer-siRNA compound can significantly induce K562 cell apoptosis, and provide reference for gene therapy of patients with chronic myelocytic lenkemia.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Apoptosis
/
Proliferación Celular
Límite:
Humans
Idioma:
Zh
Año:
2015
Tipo del documento:
Article