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ROS-Induced Nanotherapeutic Approach for Ovarian Cancer Treatment Based on the Combinatorial Effect of Photodynamic Therapy and DJ-1 Gene Suppression Pubblico Deposited

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https://ir.library.oregonstate.edu/concern/articles/pk02cg00x

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Abstract
  • This study represents a novel approach for intraoperative ovarian cancer treatment based on the combinatorial effect of a targeted photodynamic therapy (PDT) associated with suppression of the DJ-1 protein, one of the key players in the ROS defense of cancer cells. To assess the potential of the developed therapy, dendrimer-based nanoplatforms for cancer-targeted delivery of near-infrared photosensitizer, phthalocyanine, and DJ-1 siRNA have been constructed. In vitro studies revealed that therapeutic efficacy of the combinatorial approach was enhanced when compared to PDT alone and this enhancement was more pronounced in ovarian carcinoma cells, which are characterized by higher basal levels of DJ-1 protein. Moreover, the ovarian cancer tumors exposed to a single dose of combinatorial therapy were completely eradicated from the mice and the treated animals showed no evidence of cancer recurrence. Thus, the developed therapeutic approach can be potentially employed intraoperatively to eradicate unresactable cancer cells.
  • Keywords: DJ-1, ovarian cancer, ROS, photodynamic therapy, siRNA therapy
  • Keywords: DJ-1, ovarian cancer, ROS, photodynamic therapy, siRNA therapy
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  • Schumann, C., Taratula, O., Khalimonchuk, O., Palmer, A. L., Cronk, L.M., Jones, C. V., Escalante, C. A., & Taratula, O. (2015). ROS-Induced Nanotherapeutic Approach for Ovarian Cancer Treatment Based on the Combinatorial Effect of Photodynamic Therapy and DJ-1 Gene Suppression. Nanomedicine: Nanotechnology, Biology and Medicine. 11(8), 1961-1970. doi:10.1016/j.nano.2015.07.005
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  • 11
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  • 8
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  • This research was supported by the Medical Research Foundation of Oregon and the College of Pharmacy at Oregon State University.
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