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Mucus-penetrating PEGylated polysuccinimide-based nanocarrier for intravaginal delivery of siRNA battling sexually transmitted infections. Colloids Surf B Biointerfaces 2020; 196:111287. [PMID: 32768985 DOI: 10.1016/j.colsurfb.2020.111287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 11/21/2022]
Abstract
Intravaginal delivery of siRNA for prevention of sexually transmitted infections faces obstacles such as the acidic environment and vaginal mucus barrier. To achieve effective protection and delivery of siRNA, we developed a polysuccinimide (PSI)-based nanocarrier (PSI-PEG-API-PMA, PPAP) by conjugating methoxy polyethylene glycol amine (Me-PEG-NH2, Mw 5000), 1-(3-aminopropyl)imidazole (API), and 1-pyrenemethylamine hydrochloride (PMA) to PSI. PPAP demonstrated a spherical self-assembled nanostructure before and after encapsulation of a model siRNA. Variable electrostatic interaction between API and siRNA at acidic vs. neutral pH accomplished significantly lower burst release at pH 4.2 (4 ± 1%) than pH 7.0 (26 ± 5%) within 1 h. PEGylation enabled siRNA-PPAP to achieve higher mucus penetration efficiency (64 ± 17%) than free siRNA (27 ± 5%) for 24 h. Moreover, in vitro study showed minimal toxicity, successful internalization of siRNA-PPAP in HeLa cells and improved gene knockdown (97.5 ± 0.4%). Overall, PPAP is promising for developing preventative treatments for battling sexually transmitted infections.
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Fan J, Wang S, Sun W, Guo S, Kang Y, Du J, Peng X. Anticancer drug delivery systems based on inorganic nanocarriers with fluorescent tracers. AIChE J 2017. [DOI: 10.1002/aic.15976] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiangli Fan
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Suzhen Wang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Wen Sun
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Shigang Guo
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Yao Kang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Jianjun Du
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
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Suarasan S, Focsan M, Potara M, Soritau O, Florea A, Maniu D, Astilean S. Doxorubicin-Incorporated Nanotherapeutic Delivery System Based on Gelatin-Coated Gold Nanoparticles: Formulation, Drug Release, and Multimodal Imaging of Cellular Internalization. ACS APPLIED MATERIALS & INTERFACES 2016; 8:22900-13. [PMID: 27537061 DOI: 10.1021/acsami.6b07583] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In this work, we developed a new pH- and temperature-responsive nanochemotherapeutic system based on Doxorubicin (DOX) noncovalently bound to biosynthesized gelatin-coated gold nanoparticles (DOX-AuNPs@gelatin). The real-time release profile of DOX was evaluated at different pH values (7.4, 5.3, and 4.6) and temperatures (22-45 °C) in aqueous solutions, and its therapeutic performance was examined in vitro against MCF-7 breast cancer cells. TEM, dark-field scattering, and wide-field fluorescence microscopy indicated the effective uptake of nanochemotherapeutics with the subsequent release and progressive accumulation of DOX in cell nuclei. MTT assays clearly showed the effectiveness of the treatment by inhibiting the growth of MCF-7 breast cancer cells for a loaded drug concentration of 5 μg/mL. The most informative data about the dynamic release and localization were provided by scanning confocal microscopy using time-resolved fluorescence and surface-enhanced Raman scattering (SERS) techniques. In particular, fluorescence-lifetime imaging (FLIM) recorded under 485 nm pulsed diode laser excitation revealed the bimodal distribution of DOX in cells. The shorter fluorescence lifetime of DOX localized in nuclei (1.52 ns) than in the cytoplasm (2.4 ns) is consistent with the cytotoxic mechanism induced by DOX-DNA intercalation. Remarkably, the few DOX molecules captured between nanoparticles ("electromagnetic hotspots") after most drug is released act as SERS reporters for the localization of plasmonic nanocarriers in MCF-7 cells. The high drug loading capacity and effective drug release under pH control combined with the advantage of multimodal visualization inside cells clearly indicate the high potential of our DOX-AuNPs@gelatin delivery system for implementation in nanomedicine.
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Affiliation(s)
- Sorina Suarasan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences Babes-Bolyai University , T. Laurian Str. 42, 400271 Cluj-Napoca, Romania
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences Babes-Bolyai University , T. Laurian Str. 42, 400271 Cluj-Napoca, Romania
| | - Monica Potara
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences Babes-Bolyai University , T. Laurian Str. 42, 400271 Cluj-Napoca, Romania
| | - Olga Soritau
- Laboratory of Cell Biology and Radiobiology "Ion Chiricuta" Institute of Oncology , Republicii Str. 34-36, 400015 Cluj-Napoca, Romania
| | - Adrian Florea
- Department of Cell and Molecular Biology, Faculty of Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy , Louis Pasteur Str., 6, 400349 Cluj-Napoca, Romania
| | - Dana Maniu
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences Babes-Bolyai University , T. Laurian Str. 42, 400271 Cluj-Napoca, Romania
- Department of Biomolecular Physics, Faculty of Physics, Babes-Bolyai University , M Kogalniceanu Str. 1, 400084 Cluj-Napoca, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences Babes-Bolyai University , T. Laurian Str. 42, 400271 Cluj-Napoca, Romania
- Department of Biomolecular Physics, Faculty of Physics, Babes-Bolyai University , M Kogalniceanu Str. 1, 400084 Cluj-Napoca, Romania
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Han X, Liu DE, Wang T, Lu H, Ma J, Chen Q, Gao H. Aggregation-Induced-Emissive Molecule Incorporated into Polymeric Nanoparticulate as FRET Donor for Observing Doxorubicin Delivery. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23760-23766. [PMID: 26448180 DOI: 10.1021/acsami.5b08202] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Tetraphenylethene (TPE) derivatives characterized with distinct aggregation-induced-emission, attempted to aggregate with doxorubicin (Dox) to formulate the interior compartment of polymeric nanoparticulate, served as fluorescence resonance energy transfer (FRET) donor to promote emission of acceptor Dox. Accordingly, this FRET formulation allowed identification of Dox in complexed form by detecting FRET. Important insight into the Dox releasing can be subsequently explored by extracting complexed Dox (FRET) from the overall Dox via direct single-photon excitation of Dox. Of note, functional catiomers were used to complex with FRET partners for a template formulation, which was verified to induce pH-responsive release in the targeted subcellular compartment. Hence, this well-defined multifunctional system entitles in situ observation of the drug releasing profile and insight on drug delivery journey from the tip of injection vein to the subcellular organelle of the targeted cells.
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Affiliation(s)
- Xiongqi Han
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology , Tianjin 300384, China
| | - De-E Liu
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology , Tianjin 300384, China
| | - Tieyan Wang
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology , Tianjin 300384, China
| | - Hongguang Lu
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology , Tianjin 300384, China
| | - Jianbiao Ma
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology , Tianjin 300384, China
| | - Qixian Chen
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Hui Gao
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology , Tianjin 300384, China
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Yu JC, Chen YL, Zhang YQ, Yao XK, Qian CG, Huang J, Zhu S, Jiang XQ, Shen QD, Gu Z. pH-Responsive and near-infrared-emissive polymer nanoparticles for simultaneous delivery, release, and fluorescence tracking of doxorubicin in vivo. Chem Commun (Camb) 2015; 50:4699-702. [PMID: 24671329 DOI: 10.1039/c3cc49870k] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Dextran modified with pendant acetals is used to load doxorubicin (DOX) and a near-infrared-emissive conjugated polymer (BTTPF), and this aims to provide selective drug release at therapeutic targets including tumors. The BTTPF is applicable to tracking the anticancer drug release through the change of Förster resonance energy transfer efficiency between doxorubicin and BTTPF during degradation of the nanoparticles in vivo.
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Affiliation(s)
- Ji-Cheng Yu
- Department of Polymer Science & Engineering, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, China.
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Kelkar SS, Xue L, Turner SR, Reineke TM. Lanthanide-Containing Polycations for Monitoring Polyplex Dynamics via Lanthanide Resonance Energy Transfer. Biomacromolecules 2014; 15:1612-24. [DOI: 10.1021/bm401870z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sneha S. Kelkar
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24060, United States
- Wake Forest Institute for Regenerative Medicine and Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Winston-Salem, North Carolina 27101, United States
| | - Lian Xue
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - S. Richard Turner
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24060, United States
| | - Theresa M. Reineke
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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