چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| Abstract Background: Apoptosis is a crucial process in the failure of cancer progression. However, the occurrence of resistance to chemotherapy in cancer cells may prevent apoptosis via induction of the expression of the anti-apoptotic genes (Bcl-2) and/or reduction of the expression of the apoptotic caspases. Objectives: The current study aimed at investigating the apoptotic effects of targeted co-delivery of docetaxel and cMet siRNA (siMet) through mucin1 aptamer-conjugated chitosan nanoparticles on mucin1 + metastatic breast cancer cells (SKBR3). Methods: Characterization of nano-drugs,Western blotting assay, annexin V/ propidium iodide staining assay, and gene expression studies were evaluated based on metastatic breast cancer cells. Results: Characterization showed the appropriate size (110.5 3.9 nm), zeta potential (11.6 0.8 mV), and spherical shape of nanoparticles. Loading efficiency of 90.7% and 88.3% were gained for siRNA and docetaxel, respectively. The siRNA entrapment onto nanoparticles and conjugation of aptamers to nanoparticles were confirmed by gel electrophoresis. Gene knockdown assay represented the effectiveness of siMet on cMet gene silencing. According to the flow cytometry results, targeted co-delivery was successful in leading tumor cells to apoptosis (94.9%). Also, targeted co-delivery could reduce the expression of Bcl-2 gene (P < 0.0001) and increase the expression of caspase-8 and caspase-9 genes (P < 0.0001). Conclusions: Combination treatment of metastatic breast cancer cells with aptamer-conjugated nanoparticles containing docetaxel and cMet siRNA significantly increased apoptosis. |
| نویسنده | نفر چندم مقاله |
|---|---|
| علیرضا محجل نائبی | نهم |
| نعیمه مجیدی ذوالبنین | اول |
| مهدی یوسفی | پنجم |
| فرهاد جدیدی نیارق | ششم |
| محمدصادق سلطانی زنگبار | هفتم |
| میلاد اسدی | هشتم |
| جعفر مجیدی ذوالبین | سوم |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| Mucin1 Aptamer- jjnpp-2019.pdf | 1398/10/02 | 2772511 | دانلود |
