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- W1964602635 abstract "Cancer gene therapy for the treatment of lung cancer has shown promise in the laboratory and in Phase I/II clinical trials. However, it is currently limited to treating localized tumors due to host-immunity against the gene delivery vector and the transgene. Therefore, there is a tremendous effort to develop and test alternate gene delivery vectors that are efficient, non-immunogenic, and applicable for systemic therapy. One such gene delivery vehicle is the non-viral vector, DOTAP: cholesterol (DOTAP:Chol) nanoparticle. Preclinical studies from our laboratory has shown that DOTAP:Chol. nanoparticles are effective systemic gene delivery vectors that efficiently deliver tumor-suppressor genes to disseminated lung tumors. Based on our findings we have recently initiated a Phase-I trial for systemic treatment of lung cancer using a novel tumor suppressor gene, FUS1. Although DOTAP:Chol. nanoparticles complexed to DNA (DNA-nanoparticles) are efficient vectors for systemic therapy, induction of an inflammatory response in a dose-dependent fashion has also been observed thereby limiting its use. A better understanding of the underlying mechanism for DNA-nanoparticles-mediated inflammatory response will allow us to develop strategies to suppress inflammation and expand the therapeutic window in treating human cancer. In the present study we conducted experiments examining the mechanism of nanoparticle-mediated inflammatory response in vitro and in vivo. We demonstrate that systemic administration of DNA-nanoparticles induced multiple signaling molecules both in vitro and in vivo that are associated with inflammation. Use of small molecule inhibitors against the signaling molecules resulted in their suppression and thereby reduced inflammation without affecting transgene expression. Our results provide a rationale to use small molecule inhibitors to suppress nanoparticle-mediated inflammation when administered systemically. Further development and testing will allow us to incorporate this strategy into future clinical trials that is based on systemic non-viral vector gene therapy." @default.
- W1964602635 created "2016-06-24" @default.
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- W1964602635 date "2004-12-01" @default.
- W1964602635 modified "2023-10-01" @default.
- W1964602635 title "Nanoparticle Based Systemic Gene Therapy for Lung Cancer: Molecular Mechanisms and Strategies to Suppress Nanoparticle-Mediated Inflammatory Response" @default.
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- W1964602635 doi "https://doi.org/10.1177/153303460400300615" @default.
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