Enhanced Gene Transduction into Skeletal Muscle of Mice In Vivo with Pluronic Block Copolymers and Ultrasound Exposure |
| |
Authors: | Yun-Chao Chen Li-Ping Jiang Na-Xiang Liu Lu Ding Xiao-Ling Liu Zhi-Hui Wang Kai Hong Qing-Ping Zhang |
| |
Institution: | (1) Ultrasound Department, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Road, Wuhan, 430030, China |
| |
Abstract: | The pluronic block copolymers are able to enhance the ultrasound-induced gene delivery in vitro. In the present study, the
effects of pluronics on the efficiency of gene transfer into skeletal muscle in vivo under sonoporation were investigated.
Plasmid DNA encoding green fluorescent protein (GFP) in combination with three different pluronics, F127, L61, and P85, was
injected into the tibialis anterior (TA) muscle of mice with and without adjunct ultrasound (1 MHz, 3 W/cm2 1 min, 20% duty cycle). Mice were killed 1 week after injection. The TA muscles were removed and snap frozen immediately
in isopentane cooled by liquid nitrogen and sections of 7 μm thick were cut. Transfection efficiency was assessed by counting
the number of GFP-positive fibers under fluorescence microscopy, and tissue damage by hematoxylin and eosin staining. The
results suggested that all three pluronics significantly enhanced transgene expression in skeletal muscle (P < 0.01), especially the P85 showed significantly higher efficiency than the other two pluronics (P < 0.05). Ultrasound synergistically enhanced the gene delivery efficiency with P85 (P < 0.01), but was unable to do so with F127 and L61 groups. In short, P85 displays significantly synergistic effect with ultrasound
for enhancing plasmid DNA transduction in skeletal muscle of mice in vivo. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|