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http://dx.doi.org/10.7314/APJCP.2014.15.12.4915

Cervical Cancer Gene Therapy by Gene Loaded PEG-PLA Nanomedicine  

Liu, Bo (Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute)
Han, Shu-Mei (Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute)
Tang, Xiao-Yong (Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute)
Han, Li (Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute)
Li, Chang-Zhong (Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong University)
Publication Information
Asian Pacific Journal of Cancer Prevention / v.15, no.12, 2014 , pp. 4915-4918 More about this Journal
Abstract
Background and Aims: Advances in the treatment of cervical cancer over the last decade have predominantly involved the development of genes directed at molecular targets. Gene therapy is recognized to be a novel method for the treatment of cervical cancer. Genes can be administered into target cells via nanocarriers. This study aimed to develop systemically administrable nano-vectors. Floate (Fa) containing gene loaded nanoparticles (NPs) could target HeLa human cervical cancer cells through combination with receptors on the cells to increase the nuclear uptake of genetic materials. Methods: Fa was linked onto Poly (ethylene glycol)-b-poly (D, L-lactide) (PEG-PLA) to form Fa-PEG-PLA, and the resulting material was used to load plasmids of enhanced green fluorescence protein (pEGFP) to obtain gene loaded nanoparticles (Fa-NPs/DNA). Physical-chemical characteristics, in vitro release and cytotoxicity of Fa-NPs/DNA were evaluated. The in vitro transfection efficiency of Fa-NPs/DNA was evaluated in HeLa cells and human umbilical vein endothelial cells (HUVEC). PEG-PLA without Fa was used to load pEGFP from NPs/DNA as a control. Results: Fa-NPs/DNA has a particle size of 183 nm and a gene loading quantity of 92%. After 72h of transfection, Fa-NPs/DNA displayed over 20% higher transfection efficiency than NPs/DNA and 40% higher than naked DNA in HeLa cells. However, in HUVECs, no significant difference appeared between Fa-NPs/DNA and NPs/DNA. Conclusions: Fa-PEG-PLA NPs could function as excellent materials for gene loading. This nano-approach could be used as tumor cell targeted medicine for the treatment of cervical cancer.
Keywords
Gene therapy; cervical cancer; folate coating; targeted nanomedicine;
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Times Cited By KSCI : 9  (Citation Analysis)
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