کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5848536 | 1130195 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Withaferin A enhances radiation-induced apoptosis in Caki cells through induction of reactive oxygen species, Bcl-2 downregulation and Akt inhibition
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Withaferin A (Wit A), a natural compound derived from the medicinal plant Withania somnifera, has been reported for the anti-tumor effects, including the inhibition of tumor cell growth, metastasis and angiogenesis. In this study, we investigated the effect of Wit A on radiation-induced apoptosis in human renal cancer cells (Caki cells). Our results showed that, compared with Wit A or radiation alone, the combination of both resulted in a significant enhancement of apoptosis, showing the increase in the cleavage of caspase-3 and PARP as well as sub-G1 cell population. In addition, reactive oxygen species (ROS) generation was correlated with the enhancement of radiation-induced apoptosis by Wit A. Wit A downregulated Bcl-2 protein levels and ectopic expression of Bcl-2 in Caki cells attenuated the apoptosis induced by Wit A plus radiation. Taken together, these results indicate that Wit A enhanced radiation-induced apoptosis in Caki cells through ROS generation, down-regulation of Bcl-2 and Akt dephosphorylation. Thus, our study shows that Wit A may be used as an effective radiosensitizer in cancer therapy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemico-Biological Interactions - Volume 190, Issue 1, 15 March 2011, Pages 9-15
Journal: Chemico-Biological Interactions - Volume 190, Issue 1, 15 March 2011, Pages 9-15
نویسندگان
Eun Sun Yang, Min Jung Choi, Jin Hee Kim, Kyeong Sook Choi, Taeg Kyu Kwon,