YU Jingping, SUN Meiling, SUN Suping, et al. The study on the mechanism of enhanced radio-sensitivity of glioma cell U251 by thalidomide[J]. Journal of Radiation Research and Radiation Processing, 2010,28(6):368-372.
YU Jingping, SUN Meiling, SUN Suping, et al. The study on the mechanism of enhanced radio-sensitivity of glioma cell U251 by thalidomide[J]. Journal of Radiation Research and Radiation Processing, 2010,28(6):368-372.DOI:
In order to investigate the inhibition of DNA synthesis and the mechanism of thalidomide enhanced radio-sensitivity on glioma U251 cells, survival rate of the cells was assessed by MTT assay; and ,3,H-TdR incorporation assay was used to investigate the inhibition of DNA synthesis by thalidomide alone and combined with X-rays; VEGF mRNA expressions were evaluated using RT-PCR assay. Protein expression (VEGF) was detected by Western blot analysis. Thalidomide inhibited DNA synthesis depending on the concentration of thalidomide and radiation dose. Thalidomide markedly down-regulated VEGF mRNA combined with X-rays in which a synergistic action appeared. Low dose X-rays can induce VEGF protein expression in 24 h. Thalidomide was a low toxicity to U251 cells. Thalidomide inhibited DNA synthesis of U251 cells.