[Expressions of immunogenic molecules in low-dose radiotherapy-treated human renal clear cell carcinoma 786-0 cells].
Zhonghua Yi Xue Za Zhi
; 93(30): 2385-7, 2013 Aug 13.
Article
em Zh
| MEDLINE
| ID: mdl-24300208
ABSTRACT
OBJECTIVE:
To explore the effects of low-dose radiation on the expression of immunogenic membrane molecules calreticulin (CRT) and MHC-I/II on the surface of human renal clear cell carcinoma 786-0 cells.METHODS:
The inhibitory activity of low-dose radiation on cell line 786-0 was examined by CCK-8 assay. And the post-radiation membrane expressions of CRT, MHC-I and MHC-II were measured by flow cytometry while CRT was visualized by immunofluorescence photography.RESULTS:
The inhibition rates on the proliferative capacities of four 786-0 cell lines rose with the incremental radiation doses of 0, 6, 12 and 24 Gy. And the CRT expression levels of each experimental group was significantly higher than that of the control group (P < 0.001). Along with incremental doses of irradiation, the average calreticulin fluorescence intensities increased gradually initially and then there was a downward trend. The membrane expressions of MHC-I and MHC-II of each experimental group was significantly higher than those of the control group (P < 0.05). As the irradiation dose increased, the average MHC-I fluorescence intensities increased gradually in a dose-dependent manner.CONCLUSION:
The low-dose radiotherapy may up-regulate CRT and MHC class I/II related with the immunogenicity of tumor cells to induce immune response against tumors.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Genes MHC Classe I
/
Carcinoma de Células Renais
/
Genes MHC da Classe II
/
Calreticulina
Limite:
Humans
Idioma:
Zh
Revista:
Zhonghua Yi Xue Za Zhi
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
China