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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhang, Jin Kale, Vijay Chen, Mingnan |
| Copyright Year | 2014 |
| Abstract | As one targeting strategy of prodrug delivery, gene-directed enzyme prodrug therapy (GDEPT) promises to realize the targeting through its three key features in cancer therapy—cell-specific gene delivery and expression, controlled conversion of prodrugs to drugs in target cells, and expanded toxicity to the target cells’ neighbors through bystander effects. After over 20 years of development, multiple GDEPT systems have advanced into clinical trials. However, no GDEPT product is currently marketed as a drug, suggesting that there are still barriers to overcome before GDEPT becomes a standard therapy. In this review, we first provide a general introduction of this prodrug targeting strategy. Then, we utilize the four most thoroughly studied systems to illustrate components, mechanisms, preclinical and clinical results, and further development directions of GDEPT. These four systems are herpes simplex virus thymidine kinase/ganciclovir, cytosine deaminase/5-fluorocytosine, cytochrome P450/oxazaphosphorines, and nitroreductase/CB1954 system. Later, we focus our discussion on bystander effects including local and distant bystander effects. Lastly, we discuss carriers that are used to deliver genes for GDEPT including virus carriers and non-virus carriers. Among these carriers, the stem cell-based gene delivery system represents one of the newest carriers under development, and may brought about a breakthrough to the gene delivery issue of GDEPT. |
| Starting Page | 102 |
| Ending Page | 110 |
| Page Count | 9 |
| File Format | |
| ISSN | 12341234 |
| Journal | The AAPS Journal |
| Volume Number | 17 |
| Issue Number | 1 |
| e-ISSN | 15507416 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2014-10-23 |
| Publisher Institution | American Association of Pharmaceutical Scientists |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Pharmacology/Toxicology Biochemistry Biotechnology Pharmacy |
| Content Type | Text |
| Resource Type | Article |
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