TITLE

Effects of survivin interference RNA on non-small cell lung carcinoma

AUTHOR(S)
Guan-Feng Liu; Qi-Gang Zhao; Lei Si; Yin-Guang Cao; Guang-Yao Li; Le-Xin Wang
PUB. DATE
December 2009
SOURCE
Clinical & Investigative Medicine;Dec2009, Vol. 32 Issue 6, pE225
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Objectives: The primary purpose of this study was to investigate the in vitro and in vivo effect of survivin interference RNA (siRNA) on non-small cell lung cancer. Methods: Lentivirus was used as a vector to transfer siRNA into human lung cancer A549 cells. The proliferation of the cancer cells was assessed by MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay. The lentivirus-mediated siRNA was also injected into the transplanted A549 tumor tissues in mice. Tumour growth was assessed after 11 injections over a period of 21 days. Results: Compared with the placebo and the blank lentiviral vector groups, the siRNA treatment group had reduced cell growth rate following 4 days of the treatment (P<0.01). The average size of the transplanted A549 tumours in the siRNA treatment group (0.75±0.16 cm³, n=8) was smaller than in the placebo (2.09±0.22 cm³, n=6) or the blank lentivrial vector groups (1.89±0.18 cm³, n=6) (P<0.01). The tumour growth inhibition rate in the siRNA groups was 46.1%. Conclusion: Lentivirus-mediated siRNA therapy inhibits the growth of human lung cancer cells in vitro. The siRNA therapy also suppresses the growth of the transplanted lung cancer in mice.
ACCESSION #
47781868

 

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