siRNA-mediated knock-down of DFF45 amplifies doxorubicin therapeutic effects in breast cancer cells.
siRNA-mediated knock-down of DFF45 amplifies doxorubicin therapeutic effects in breast cancer cells.
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siRNA 介导的 DFF45 敲低可增强阿霉素对乳腺癌细胞的治疗效果。
DOI:
10.1007/s13402-013-0157-1
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Sheibani,Nader
中科院分区:
文献类型:
--
作者:
Bagheri,Fatemeh;Safarian,Shahrokh;Eslaminejad,MohamadrezaBaghaban;Sheibani,Nader
PurposeRNA interference (RNAi) has become a promising tool for cancer therapy. Small interfering RNAs (siRNAs) can synergistically enhance the cell killing effects of drugs used in cancer treatment. Here we examined the effects of siRNA-mediated DNA fragmentation factor 45 (DFF45) gene silencing on breast cancer cell viability, cell cycle arrest, and apoptosis in the presence and absence of doxorubicin.MethodsWe designed three siRNAs, which target different regions of the DFF45 mRNA. Gene silencing was confirmed by real time RT-PCR and Western blot analyses. The impact of DFF45 siRNA, doxorubicin, and their combination on the viability, cell cycle and apoptosis of T-47D and MDA-MB-231 breast cancer cells were determined by MTT, PI staining, annexin V binding, caspase-3 activity, DNA laddering, and chromatin condensation assays.ResultsBased on flow cytometric analyses, we found that silencing of DFF45 alone had little effect on apoptosis, especially in T-47D cells. However, when used in combination with doxorubicin (0.33 μM) a significant increase (P< 0.05) in apoptosis was observed in T-47D and MDA-MB-231 cells, i.e., ~2.5- and 3-fold, respectively. Caspase-3 activity, chromatin condensation, as well as DNA laddering supported increased apoptosis in the combinatorial treatment. Cell cycle arrest in both cell lines occurred at lower levels after siRNA + doxorubicin treatment compared to doxorubicin only.ConclusionsOur data indicate that DFF45 gene silencing, when applied in combination with doxorubicin, may offer a novel therapeutic strategy for the treatment of breast cancer.
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DOI:
--
发表时间:
1979
期刊:
Journal of oral pathology
影响因子:
--
作者:
Y. Okada
通讯作者:
Y. Okada
DOI:
10.1080/01635588509513801
发表时间:
1984
期刊:
Nutrition and cancer
影响因子:
--
作者:
B. S. Alam;S. Q. Alam;J. Weir;W. Gibson
通讯作者:
W. Gibson
影响因子:
11.2
作者:
R. Moon;D. Mccormick;R. Mehta
通讯作者:
R. Mehta
影响因子:
4.2
作者:
SHAPIRO, SS;MOTT, DJ;MACHLIN, LJ
通讯作者:
MACHLIN, LJ
影响因子:
56.9
作者:
GOODMAN, DS;HUANG, HS
通讯作者:
HUANG, HS