pegylated apoptotic protein-loaded plga microspheres for cancer therapy
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2015
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Abstract
Hyeong Jun Byeon,1 Insoo Kim,1 Ji Su Choi,1 Eun Seong Lee,2 Beom Soo Shin,3 Yu Seok Youn11Department of Pharmaceutical Sciences, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea; 2Division of Biotechnology, The Catholic University of Korea, Bucheon-si, Republic of Korea; 3Department of Pharmacy, College of Pharmacy, Catholic University of Daegu, Gyeongsan-si, Republic of KoreaAbstract: The aim of the current study was to investigate the antitumor potential of poly(D,L-lactic-co-glycolic acid) microspheres (PLGA MSs) containing polyethylene glycol (PEG)-conjugated (PEGylated) tumor necrosis factor–related apoptosis-inducing ligand (PEG-TRAIL). PEG-TRAIL PLGA MSs were prepared by using a water-in-oil-in-water double-emulsion method, and the apoptotic activities of supernatants released from the PLGA MSs at days 1, 3, and 7 were examined. The antitumor effect caused by PEG-TRAIL PLGA MSs was evaluated in pancreatic Mia Paca-2 cell-xenografted mice. PEG-TRAIL PLGA MS was found to be spherical and 14.4±1.06 µm in size, and its encapsulation efficiency was significantly greater than that of TRAIL MS (85.7%±4.1% vs 43.3%±10.9%, respectively). The PLGA MS gradually released PEG-TRAIL for 14 days, and the released PEG-TRAIL was shown to have clear apoptotic activity in Mia Paca-2 cells, whereas TRAIL released after 1 day had a negligible activity. Finally, PEG-TRAIL PLGA MS displayed remarkably greater antitumor efficacy than blank or TRAIL PLGA MS in Mia Paca-2 cell-xenografted mice in terms of tumor volume and weight, apparently due to increased stability and well-retained apoptotic activity of PEG-TRAIL in PLGA MS. We believe that this PLGA MS system, combined with PEG-TRAIL, should be considered a promising candidate for treating pancreatic cancer.Keywords: Poly(D,L-lactic-co-glycolic acid), controlled release, PEGylation, TRAIL, pancreatic cancer
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hj2015internationalpegylated
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| Authors | ;Byeon HJ;Kim I;Choi JS;Lee ES;Shin BS;Youn YS |
| Journal | nonlinear analysis: real world applications |
| Year | 2015 |
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