GENE THERAPY OF CARCINOMA USING ULTRASOUND-TARGETED MICROBUBBLE DESTRUCTION

被引:77
作者
Carson, Andrew R. [1 ]
McTiernan, Charles F. [1 ]
Lavery, Linda [1 ]
Hodnick, Abigail [1 ]
Grata, Michelle [1 ]
Leng, Xiaoping [1 ]
Wang, Jianjun [1 ]
Chen, Xucai [1 ]
Modzelewski, Ruth A. [2 ]
Villanueva, Flordeliza S. [1 ]
机构
[1] Univ Pittsburgh, Med Ctr, Ctr Ultrasound Mol Imaging & Therapeut, Cardiovasc Inst, Pittsburgh, PA 15213 USA
[2] Univ Pittsburgh, Pittsburgh Canc Inst, Pittsburgh, PA 15213 USA
基金
美国国家卫生研究院;
关键词
Nonviral vectors; Ultrasound contrast agents; Ultrasound imaging; Targeting strategies; Squamous cell carcinoma; Suicide genes; MYOCARDIAL CONTRAST ECHOCARDIOGRAPHY; RED-BLOOD-CELLS; IN-VIVO; THYMIDINE KINASE; GLIOBLASTOMA-MULTIFORME; PANCREATIC-ISLETS; DELIVERY; SONOPORATION; EXPRESSION; CANCER;
D O I
10.1016/j.ultrasmedbio.2010.11.011
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
When microbubble contrast agents are loaded with genes and systemically injected, ultrasound-targeted microbubble destruction (UTMD) facilitates focused delivery of genes to target tissues. A mouse model of squamous cell carcinoma was used to test the hypothesis that UTMD would specifically transduce tumor tissue and slow tumor growth when treated with herpes simplex virus thymidine kinase (TK) and ganciclovir. UTMD-mediated delivery of reporter genes resulted in tumor expression of luciferase and green fluorescent protein (GFP) in perivascular areas and individual tumor cells that exceeded expression in control tumors (p = 0.02). The doubling time of TK-treated tumors was longer than GFP-treated tumors (p = 0.02), and TK-treated tumors displayed increased apoptosis (p = 0.04) and more areas of cellular drop-out (p = 0.03). These data indicate that UTMD gene therapy can transduce solid tumors and mediate a therapeutic effect. UTMD is a promising nonviral method for targeting gene therapy that may be useful in a spectrum of tumors. (E-mail: villanuevafs@upmc.edu) (C) 2011 World Federation for Ultrasound in Medicine & Biology.
引用
收藏
页码:393 / 402
页数:10
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