Effect of adenovirus delivered tissue inhibitor of metalloproteinases 3 on the irradiation sensitivity of human papillomavirus positive cervical cancer cells / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
;
(6): 521-525, 2010.
Artigo
em Chinês
| WPRIM
| ID: wpr-322739
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effects of adenovirus-delivered tissue inhibitor of metalloprotein- ases-3 (Ad-TIMP-3) on the irradiation sensitivity of human papillomavirus (HPV)-positive cervical cancer cells.</p><p><b>METHODS</b>An adenovirus expressing TIMP-3 (Ad-TIMP-3), alone or in combination with irradiation,was used to treat HPV-positive cervical cancer cells HeLa-Luc and CaSki. The effects of Ad-TIMP-3 on the proliferation of HeLa-Luc and CaSki cells were detected with MTT assay. The effect of the combination of Ad-TIMP-3 and X-ray on the proliferation of cells were determined by clone formation assay. Twenty nude mice were equally randomly divided into four groups normal control group,Ad-TIMP-3 group,X-ray group,and combination group. The size of tumor was measured separately,and tumor growth curves were drawn.</p><p><b>RESULTS</b>Ad-TIMP-3 significantly inhibited the proliferation of HPV-positive cervical cancer cells in a dose-dependent manner. Combination of Ad-TIMP-3 and X-ray significantly decreased the clones of HeLa-Luc and CaSki than Ad-TIMP-3 or X-ray alone (P<0.05). The tumor weights were (0.216±0.098), (0.276±0.073), and (0.044±0.043) g, respectively, in Ad-TIMP-3 group, X-ray group,and combination group, which were all significantly lower than that in normal control group [(0.534±0.218) g] (all P<0.05). In addition,the tumor weight in the combination group was significantly lower than that in Ad-TIMP-3 group and X-ray group (both P<0.05). The tumor inhibition rate was 59.60%, 48.30%, and 91.80% in X-ray group, Ad-TIMP-3 group and combination group, respectively.</p><p><b>CONCLUSIONS</b>Ad-TIMP-3 can effectively inhibit the proliferation of cervical cancer cells. When combined with X-ray,it can remarkably increase the irradiation sensitivity of HPV-positive cervical cancer cells,and thus suppress the tumorigenesis capability of these cells in vivo.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Papillomaviridae
/
Patologia
/
Tolerância a Radiação
/
Radioterapia
/
Virologia
/
Transfecção
/
Neoplasias do Colo do Útero
/
Adenoviridae
/
Inibidor Tecidual de Metaloproteinase-3
/
Linhagem Celular Tumoral
Tipo de estudo:
Estudo diagnóstico
Limite:
Animais
/
Feminino
/
Humanos
Idioma:
Chinês
Revista:
Acta Academiae Medicinae Sinicae
Ano de publicação:
2010
Tipo de documento:
Artigo
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