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Situ JQ, Wang XJ, Zhu XL, Xu XL, Kang XQ, Hu JB, Lu CY, Ying XY, Yu RS, You J, Du YZ. Multifunctional SPIO/DOX-loaded A54 Homing Peptide Functionalized Dextran-g-PLGA Micelles for Tumor Therapy and MR Imaging. Sci Rep 2016; 6:35910. [PMID: 27775017 PMCID: PMC5075939 DOI: 10.1038/srep35910] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 10/04/2016] [Indexed: 12/12/2022] Open
Abstract
Specific delivery of chemotherapy drugs and magnetic resonance imaging (MRI) contrast agent into tumor cells is one of the issues to highly efficient tumor targeting therapy and magnetic resonance imaging. Here, A54 peptide-functionalized poly(lactic-co-glycolic acid)-grafted dextran (A54-Dex-PLGA) was synthesized. The synthesized A54-Dex-PLGA could self-assemble to form micelles with a low critical micelle concentration of 22.51 μg. mL−1 and diameter of about 50 nm. The synthetic A54-Dex-PLGA micelles can encapsulate doxorubicin (DOX) as a model anti-tumor drug and superparamagnetic iron oxide (SPIO) as a contrast agent for MRI. The drug-encapsulation efficiency was about 80% and the in vitro DOX release was prolonged to 72 hours. The DOX/SPIO-loaded micelles could specifically target BEL-7402 cell line. In vitro MRI results also proved the specific binding ability of A54-Dex-PLGA/DOX/SPIO micelles to hepatoma cell BEL-7402. The in vivo MR imaging experiments using a BEL-7402 orthotopic implantation model further validated the targeting effect of DOX/SPIO-loaded micelles. In vitro and in vivo anti-tumor activities results showed that A54-Dex-PLGA/DOX/SPIO micelles revealed better therapeutic effects compared with Dex-PLGA/DOX/SPIO micelles and reduced toxicity compared with commercial adriamycin injection.
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Affiliation(s)
- Jun-Qing Situ
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Xiao-Juan Wang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Xiu-Liang Zhu
- Department of Radiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Xiao-Ling Xu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Xu-Qi Kang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Jing-Bo Hu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Chen-Ying Lu
- Department of Radiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Xiao-Ying Ying
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Ri-Sheng Yu
- Department of Radiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Jian You
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Yong-Zhong Du
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
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Wang XS, Situ JQ, Ying XY, Chen H, Pan HF, Jin Y, Du YZ. β-Ga2O3:Cr(3+) nanoparticle: A new platform with near infrared photoluminescence for drug targeting delivery and bio-imaging simultaneously. Acta Biomater 2015; 22:164-72. [PMID: 25913221 DOI: 10.1016/j.actbio.2015.04.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 04/02/2015] [Accepted: 04/08/2015] [Indexed: 12/20/2022]
Abstract
Multifunctional nanoparticles which integrate the therapeutic agents and bio-imaging agents into one carrier are emerging as a promising therapeutic platform. Herein, GaOOH:Cr(3+) was firstly synthesized using improved hydrothermal method (atmospheric pressure, 95 °C), and by manipulating the pH of the reaction medium, GaOOH:Cr(3+) with different sizes (125.70 nm, 200.60 nm and 313.90 nm) were synthesized. Then β-Ga2O3:Cr(3+) nanoparticles with porous structures were developed as a result of the calcination of GaOOH:Cr(3+). The fabricated, porous β-Ga2O3:Cr(3+) nanoparticles could effectively absorb doxorubicin hydrochloride (DOX) (loading rate: 8% approximately) and had near infrared photoluminescence with a 695 nm emission. Furthermore, β-Ga2O3:Cr(3+) nanoparticles were coated with l-Cys modified hyaluronic acid (HA-Cys) by exploiting the electrostatic interaction and the cross-link effect of disulfide bond to improve the stability. The DOX loaded HA-Cys coated β-Ga2O3:Cr(3+) nanoparticles (HA/β-Ga2O3:Cr(3+)/DOX) showed an oxidation-reduction sensitive drug release behavior. The HA-Cys coated β-Ga2O3:Cr(3+) nanoparticles showed a low cytotoxicity on MCF-7 and Hela cell lines. The cellular uptake of HA/β-Ga2O3:Cr(3+)/DOX using the near infrared photoluminescence of β-Ga2O3:Cr(3+) nanoparticles and the fluorescence of DOX demonstrated the HA/β-Ga2O3:Cr(3+)/DOX could internalize into tumor cells quickly, which was affected by the size and shape of β-Ga2O3:Cr(3+)nanoparticles.
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Liu P, Situ JQ, Li WS, Shan CL, You J, Yuan H, Hu FQ, Du YZ. High tolerated paclitaxel nano-formulation delivered by poly (lactic-co-glycolic acid)-g-dextran micelles to efficient cancer therapy. Nanomedicine: Nanotechnology, Biology and Medicine 2015; 11:855-66. [DOI: 10.1016/j.nano.2015.02.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 02/04/2015] [Accepted: 02/09/2015] [Indexed: 12/31/2022]
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Situ JQ, Ye YQ, Zhu XL, Yu RS, You J, Yuan H, Hu FQ, Du YZ. Specific targeting of A54 homing peptide-functionalized dextran-g-poly(lactic-co-glycolic acid) micelles to tumor cells. Int J Nanomedicine 2015; 10:665-75. [PMID: 25653517 PMCID: PMC4303462 DOI: 10.2147/ijn.s76307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The delivery of chemotherapeutics into tumor cells is a fundamental knot for tumor-target therapy to improve the curative effect and avoid side effects. Here, A54 peptide-functionalized poly(lactic-co-glycolic acid)-grafted dextran (A54-Dex-PLGA) was synthesized. The synthesized A54-Dex-PLGA self-assembled to form micelles with a low critical micelle concentration of 16.79 μg·mL−1 and diameter of about 50 nm. With doxorubicin (DOX) base as a model antitumor drug, the drug-encapsulation efficiency of DOX-loaded A54-Dex-PLGA micelles (A54-Dex-PLGA/DOX) reached up to 75%. In vitro DOX release from the A54-Dex-PLGA/DOX was prolonged to 72 hours. The A54-Dex-PLGA micelles presented excellent internalization ability into hepatoma cells (BEL-7402 cell line and HepG2 cell line) in vitro, and the cellular uptake of the micelles by the BEL-7402 cell line was specific, which was demonstrated by the blocking experiment. In vitro antitumor activity studies confirmed that A54-Dex-PLGA/DOX micelles suppressed tumor-cell (BEL-7402 cell) growth more effectively than Dex-PLGA micelles. Furthermore, in vivo biodistribution testing demonstrated that the A54-Dex-PLGA micelles had a higher distribution ability to BEL-7402 tumors than that to HepG2 tumors.
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Affiliation(s)
- Jun-Qing Situ
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Yi-Qing Ye
- Women's Hospital, Zhejiang University, Hangzhou, People's Republic of China
| | - Xiu-Liang Zhu
- Department of Radiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Ri-Sheng Yu
- Department of Radiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Jian You
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Hong Yuan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Fu-Qiang Hu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Yong-Zhong Du
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
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Wang XS, Li WS, Situ JQ, Ying XY, Chen H, Jin Y, Du YZ. Multi-functional mesoporous β-Ga2O3: Cr3+ nanorod with long lasting near infrared luminescence for in vivo imaging and drug delivery. RSC Adv 2015. [DOI: 10.1039/c4ra14348e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
β-Ga2O3: Cr3+ nanorod can maintain its near infrared signal after the removal of the exciting UV, and this afterglow can be acquired by a CCD camera without an external light source.
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Affiliation(s)
- Xin-Shi Wang
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- P.R. China
| | - Wei-Shuo Li
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- P.R. China
| | - Jun-Qing Situ
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- P.R. China
| | - Xiao-Ying Ying
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- P.R. China
| | - Hui Chen
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- P.R. China
| | - Yi Jin
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine
- Jiangxi University of Traditional Chinese Medicine
- P.R. China
| | - Yong-Zhong Du
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- P.R. China
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