Inhibition of cell proliferation and C-myc cancer protein expression in human colon adenocarcinoma cell line HT29 with VIP-131I-ASON / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 1096-1100, 2006.
Artículo
en Chino
| WPRIM
| ID: wpr-320412
ABSTRACT
A 15-mer phosphorothioate antisense oligonucleotide (ASON) complementary to the translation start region of the C-myc oncogene mRNA was labeled with 131I or 125I and the labelled compound was linked to the vasoactive intestinal peptide (VIP) to be bound covalently to a polylysine chain so as to deliver oligonucleotide into tumor cells. The effect of the VIP as carrier on cell uptake of ASON in tissue culture was evaluated in a human colon adenocarcinoma HT29 cell line. The efficacy of VIP-131-ASON on cell growth was evaluated using the MTT assay. Expression of c-myc-encoded protein was measured by flow cytometry. Sense and nosense control Oligonucleotides with VIP carrier were used as control. The results showed that VIP competed effectively with VIP-125I-ASON to bind the HT29 cells. Cell uptake was increased 3-4 fold using the VIP carrier compared to the same dosage of naked DNA. HT29 cells treated with VIP-131I-ASON complexes exhibited 4-fold lower proliferation than those treated with 13I-ASON and 6-fold lower proliferation than those treated with radioiodinated Sense and nosense DNA. Cancer protein expression of HT29 cells treated with VIP-131I-ASON was decreased 2-fold compare with that in 131I-ASON treated cell. The use of a VIP carrier greatly increased 131I-ASON cellular uptake and inhibition of cell proliferation and C-myc cancer protein expressing in HT29 cell by radioiodinated antisense Oligonucleotides.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Patología
/
Farmacología
/
Péptido Intestinal Vasoactivo
/
Portadores de Fármacos
/
Adenocarcinoma
/
Oligonucleótidos Antisentido
/
Proteínas Proto-Oncogénicas c-myc
/
Neoplasias del Colon
/
Línea Celular Tumoral
/
Proliferación Celular
Límite:
Humanos
Idioma:
Chino
Revista:
Journal of Biomedical Engineering
Año:
2006
Tipo del documento:
Artículo
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