کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8434772 | 1546651 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel synthetic human insulin super promoter for targeting PDX-1-expressing pancreatic cancer
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
تحقیقات سرطان
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A novel synthetic human insulin super promoter for targeting PDX-1-expressing pancreatic cancer A novel synthetic human insulin super promoter for targeting PDX-1-expressing pancreatic cancer](/preview/png/8434772.png)
چکیده انگلیسی
Our previous studies have shown that a rat insulin promoter II fragment (RIP) was used to effectively target pancreatic adenocarcinoma (PDAC) and insulinoma that over-express pancreatic and duodenal homeobox-1 (PDX-1). To enhance the activity and specificity of the human insulin promoter, we engineered a synthetic human insulin super-promoter (SHIP). Reporter assay demonstrated that SHIP1 was the most powerful promoter among all of the SHIPs and had far greater activity than the endogenous human insulin promoters and RIP in PDAC expressing PDX-1. Over-expression, knockdown and competitive inhibition of PDX-1 expression assay proved that PDX-1 is a critical transcript factor to regulate the activity of SHIP1. SHIP1-driven viral thymidine kinase followed by ganciclovir (SHIP1-TK/GCV) resulted in cytotoxicity to PDAC cells in vitro. Systemic delivery of SHIP1-TK/GCV in PDAC xenograft mice significantly suppressed PANC-1 tumor growth in vivo greater than RIP-TK/GCV and CMV-TK/GCV controls (pâ¯<â¯.05). These preclinical data suggest that SHIP1 is a powerful novel promoter that can be used to target human PDAC expressing PDX-1 in clinical trials. Furthermore, this novel strategy of engineering synthetic super-promoters could be used for other cancer targets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cancer Letters - Volume 418, 1 April 2018, Pages 75-83
Journal: Cancer Letters - Volume 418, 1 April 2018, Pages 75-83
نویسندگان
Shi-He Liu, Juehua Yu, Robbi Sanchez, Xiaochen Liu, David Heidt, James Willey, John Nemunaitis, Francis Charles Brunicardi,