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Ye R, Zheng Y, Chen Y, Wei X, Shi S, Chen Y, Zhu W, Wang A, Yang L, Xu Y, Peng J. Stable Loading and Delivery of Melittin with Lipid-Coated Polymeric Nanoparticles for Effective Tumor Therapy with Negligible Systemic Toxicity. ACS Appl Mater Interfaces 2021; 13:55902-55912. [PMID: 34793125 DOI: 10.1021/acsami.1c17618] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Melittin is a potential anticancer candidate with remarkable antitumor activity and ability to overcome tumor drug resistance. However, the clinical applications of melittin are largely restricted by its severe hemolytic activity and nonspecific cytotoxicity after systemic administration. Here, a biocompatible and stable melittin-loaded lipid-coated polymeric nanoparticle (MpG@LPN) formulation that contains a melittin/poly-γ-glutamic acid nanoparticle inner core, a lipid membrane middle layer, and a polyethylene glycol (PEG) and PEG-targeting molecule outer shell was designed. The formulations were prepared by applying a self-assembly procedure based on intermolecular interactions, including electrostatic attraction and hydrophobic effect. The core-shell MpG@LPN presented high efficiency for melittin encapsulation and high stability in physiological conditions. Hemolysis and cell proliferation assays showed that the PEG-modified MpG@LPN had almost no hemolytic activity and nonspecific cytotoxicity even at high concentrations. The modification of targeting molecules on the MpG@LPNs allowed for the selective binding with target tumor cells and cytolytic activity via apoptosis induction. In vivo experiments revealed that MpG@LPNs can remarkably inhibit the growth of tumors without the occurrence of hemolysis and tissue toxicity. Results suggested that the developed MpG@LPN with a core-shell structure can effectively address the main obstacles of melittin in clinical applications and has great potential in cancer treatment.
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Affiliation(s)
- Ran Ye
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yuan Zheng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yang Chen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xiaohui Wei
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Sanyuan Shi
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yuetan Chen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Wanxin Zhu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Anqi Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Liuxin Yang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yuhong Xu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- School of Pharmacy and Chemistry, Dali University, Dali City 671000, P. R. China
| | - Jinliang Peng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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2
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Fang W, Yang L, Hong L, Hu Q. A chitosan hydrogel sealant with self-contractile characteristic: From rapid and long-term hemorrhage control to wound closure and repair. Carbohydr Polym 2021; 271:118428. [PMID: 34364568 DOI: 10.1016/j.carbpol.2021.118428] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/14/2021] [Accepted: 07/08/2021] [Indexed: 12/20/2022]
Abstract
Emergent and long-term hemorrhage control is requisite and beneficial for reducing global mortality and postoperative complications (e.g., second bleeding and adverse tissue adhesion). Despite recent advance in injectable hydrogels for hemostasis, achieving rapid gelation, strong tissue-adhesive property and stable mechanical strength under fluid physiological environment is still challenging. Herein, we developed a novel chitosan hydrogel (CCS@gel) via dynamic Schiff base reaction and mussel-inspired catechol chemistry. The hydrogel possessed high gelation rate (<10 s), strong wet adhesiveness, excellent self-healing performance and biocompatibility. More importantly, the CCS@gel exhibited saline-induced contractile performance and mechanical enhancement, promoting its mechanical property in moist internal conditions. In vivo studies demonstrated its superior hemostatic efficacy for diverse anticoagulated visceral and carotid bleeding scenarios, compared to commercialized fibrin glue. The hydrogel-treated rats survived for 8 weeks with minimal inflammation and postoperative adhesion. These results revealed that the promising CCS@gel would be a facile, efficient and safe sealant for clinical hemorrhage control.
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Affiliation(s)
- Wen Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ling Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Liangjie Hong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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3
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Jia F, Chen P, Wang D, Sun Y, Ren M, Wang Y, Cao X, Zhang L, Fang Y, Tan X, Lu H, Cai J, Lu X, Zhang K. Bottlebrush Polymer-Conjugated Melittin Exhibits Enhanced Antitumor Activity and Better Safety Profile. ACS Appl Mater Interfaces 2021; 13:42533-42542. [PMID: 34472829 PMCID: PMC8784393 DOI: 10.1021/acsami.1c14285] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Despite potency against a variety of cancers in preclinical systems, melittin (MEL), a major peptide in bee venom, exhibits non-specific toxicity, severe hemolytic activity, and poor pharmacological properties. Therefore, its advancement in the clinical translation system has been limited to early-stage trials. Herein, we report a biohybrid involving a bottlebrush-architectured poly(ethylene glycol) (PEG) and MEL. Termed pacMEL, the conjugate consists of a high-density PEG arrangement, which provides MEL with steric inhibition against protein access, while the high molecular weight of pacMEL substantially enhances plasma pharmacokinetics with a ∼10-fold increase in the area under the curve (AUC∞) compared to free MEL. pacMEL also significantly reduces hepatic damage and unwanted innate immune response and all but eliminated hemolytic activities of MEL. Importantly, pacMEL passively accumulates at subcutaneously inoculated tumor sites and exhibits stronger tumor-suppressive activity than molecular MEL. Collectively, pacMEL makes MEL a safer and more appealing drug candidate.
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Affiliation(s)
- Fei Jia
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Peiru Chen
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Dali Wang
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Yehui Sun
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Mengqi Ren
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Yuyan Wang
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Xueyan Cao
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Lei Zhang
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Yang Fang
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Xuyu Tan
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Hao Lu
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Jiansong Cai
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Xueguang Lu
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ke Zhang
- Departments of Chemistry and Chemical Biology, Chemical Engineering, and Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
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Cuzzucoli Crucitti V, Contreas L, Taresco V, Howard SC, Dundas AA, Limo MJ, Nisisako T, Williams PM, Williams P, Alexander MR, Wildman RD, Muir BW, Irvine DJ. Generation and Characterization of a Library of Novel Biologically Active Functional Surfactants (Surfmers) Using Combined High-Throughput Methods. ACS Appl Mater Interfaces 2021; 13:43290-43300. [PMID: 34464079 DOI: 10.1021/acsami.1c08662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We report the first successful combination of three distinct high-throughput techniques to deliver the accelerated design, synthesis, and property screening of a library of novel, bio-instructive, polymeric, comb-graft surfactants. These three-dimensional, surface-active materials were successfully used to control the surface properties of particles by forming a unimolecular deep layer on the surface of the particles via microfluidic processing. This strategy deliberately utilizes the surfactant to both create the stable particles and deliver a desired cell-instructive behavior. Therefore, these specifically designed, highly functional surfactants are critical to promoting a desired cell response. This library contained surfactants constructed from 20 molecularly distinct (meth)acrylic monomers, which had been pre-identified by HT screening to exhibit specific, varied, and desirable bacterial biofilm inhibitory responses. The surfactant's self-assembly properties in water were assessed by developing a novel, fully automated, HT method to determine the critical aggregation concentration. These values were used as the input data to a computational-based evaluation of the key molecular descriptors that dictated aggregation behavior. Thus, this combination of HT techniques facilitated the rapid design, generation, and evaluation of further novel, highly functional, cell-instructive surfaces by application of designed surfactants possessing complex molecular architectures.
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Affiliation(s)
- Valentina Cuzzucoli Crucitti
- Centre for Additive Manufacturing and Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD U.K
| | - Leonardo Contreas
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD U.K
| | - Vincenzo Taresco
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD U.K
| | | | - Adam A Dundas
- Centre for Additive Manufacturing and Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD U.K
| | - Marion J Limo
- Interface and Surface Analysis Centre, University of Nottingham, Nottingham, NG7 2RD U.K
| | - Takasi Nisisako
- Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Philip M Williams
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD U.K
| | - Paul Williams
- Biodiscovery Institute, National Biofilms Innovation Centre and School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD U.K
| | | | - Ricky D Wildman
- Centre for Additive Manufacturing and Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD U.K
| | | | - Derek J Irvine
- Centre for Additive Manufacturing and Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD U.K
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Abstract
As the gold standard for stealth polymer materials, poly(ethylene glycol) (PEG) has been widely used in drug delivery with excellent properties such as low toxicity, reduced immunogenicity, good water solubility, and so forth. However, lack of understanding for the fate of PEG and PEGylated delivery systems at the cellular level has limited the application of PEGylated molecules in diagnosis and therapy. Here, we chose linear PEG 5k as a representative model and focused on the internalization behavior and mechanism, intracellular trafficking, sub-cellular localization, and cellular exocytosis of PEG and PEGylated molecules in living cells. Our investigation showed that PEG could be internalized into cells in 1 h. The internalized PEG was localized to lysosome, cytosol, endoplasmic reticulum (ER) and mitochondria. Importantly, the fate of PEG in cells could be regulated by conjugating different small molecules. PEGylated rhodamine B (PEG-RB) as the positively charged macromolecule was internalized into cells by micropinocytosis and then transported in lysosomes, ER, and mitochondria via vesicles sequentially. In contrast, PEGylated pyropheophorbide-a (PEG-PPa) as the negatively charged macromolecule was internalized into cells and transported to lysosomes ultimately. PEGylation slowed down the exocytosis process of RB and PPa and significantly prolonged their residence time inside the cells. These findings improve the understanding of how PEG and PEGylated molecules interact with the biological system at cellular and sub-cellular levels, which is of significance to rational PEGylation design for drug delivery.
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Affiliation(s)
- Jiapei Yang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Li Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Ling Di
- Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yue Su
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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Liu S, Wang YN, Ma B, Shao J, Liu H, Ge S. Gingipain-Responsive Thermosensitive Hydrogel Loaded with SDF-1 Facilitates In Situ Periodontal Tissue Regeneration. ACS Appl Mater Interfaces 2021; 13:36880-36893. [PMID: 34324286 DOI: 10.1021/acsami.1c08855] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Existing local drug delivery systems for periodontitis suffer from poor antibacterial effect and unsatisfied periodontal regeneration. In this study, a smart gingipain-responsive hydrogel (PEGPD@SDF-1) was synthesized as an environmentally sensitive carrier for on-demand drug delivery. The PEGPD@SDF-1 hydrogel was synthesized from polyethylene glycol diacrylate (PEG-DA) based scaffolds, dithiothreitol (DTT), and a novel designed functional peptide module (FPM) via Michael-type addition reaction, and the hydrogel was further loaded with stromal cell derived factor-1 (SDF-1). The FPM exhibiting a structure of anchor peptide-short antimicrobial peptide (SAMP)-anchor peptide could be cleaved by gingipain specifically, and the SAMP was released out of the hydrogel for antibacterial effect in response to gingipain. The hydrogel properties were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), swelling ratio analysis, degradation evaluation, and release curve description of the SAMP and SDF-1. Results in vitro indicated the PEGPD@SDF-1 hydrogel exhibited preferable biocompatibility and could promote the proliferation, migration, and osteogenic differentiation of periodontal ligament stem cells (PDLSCs). Antibacterial testing demonstrated that the PEGPD@SDF-1 hydrogel released the SAMP stressfully in response to gingipain stimulation, thereby strongly inhibiting the growth of Porphyromonas gingivalis. Furthermore, the study in vivo indicated that the PEGPD@SDF-1 hydrogel inhibited P. gingivalis reproduction, created a low-inflammatory environment, facilitated the recruitment of CD90+/CD34- stromal cells, and induced osteogenesis. Taken together, these results suggest that the gingipain-responsive PEGPD@SDF-1 hydrogel could facilitate in situ periodontal tissue regeneration and is a promising candidate for the on-demand local drug delivery system for periodontitis.
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Affiliation(s)
- Shiyue Liu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Ya-Nan Wang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Baojin Ma
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Jinlong Shao
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Hongrui Liu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
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Cao S, Xia Y, Shao J, Guo B, Dong Y, Pijpers IAB, Zhong Z, Meng F, Abdelmohsen LKEA, Williams DS, van Hest JCM. Biodegradable Polymersomes with Structure Inherent Fluorescence and Targeting Capacity for Enhanced Photo-Dynamic Therapy. Angew Chem Int Ed Engl 2021; 60:17629-17637. [PMID: 34036695 PMCID: PMC8361757 DOI: 10.1002/anie.202105103] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/23/2021] [Indexed: 01/26/2023]
Abstract
Biodegradable nanostructures displaying aggregation-induced emission (AIE) are desirable from a biomedical point of view, due to the advantageous features of loading capacity, emission brightness, and fluorescence stability. Herein, biodegradable polymers comprising poly (ethylene glycol)-block-poly(caprolactone-gradient-trimethylene carbonate) (PEG-P(CLgTMC)), with tetraphenylethylene pyridinium-TMC (PAIE) side chains have been developed, which self-assembled into well-defined polymersomes. The resultant AIEgenic polymersomes are intrinsically fluorescent delivery vehicles. The presence of the pyridinium moiety endows the polymersomes with mitochondrial targeting ability, which improves the efficiency of co-encapsulated photosensitizers and improves therapeutic index against cancer cells both in vitro and in vivo. This contribution showcases the ability to engineer AIEgenic polymersomes with structure inherent fluorescence and targeting capacity for enhanced photodynamic therapy.
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Affiliation(s)
- Shoupeng Cao
- Bio-Organic ChemistryInstitute for Complex Molecular SystemsEindhoven University of TechnologyP.O. Box 513 (STO 3.41), 5600MBEindhovenThe Netherlands
| | - Yifeng Xia
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou215123P. R. China
| | - Jingxin Shao
- Bio-Organic ChemistryInstitute for Complex Molecular SystemsEindhoven University of TechnologyP.O. Box 513 (STO 3.41), 5600MBEindhovenThe Netherlands
| | - Beibei Guo
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou215123P. R. China
| | - Yangyang Dong
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou215123P. R. China
| | - Imke A. B. Pijpers
- Bio-Organic ChemistryInstitute for Complex Molecular SystemsEindhoven University of TechnologyP.O. Box 513 (STO 3.41), 5600MBEindhovenThe Netherlands
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou215123P. R. China
| | - Fenghua Meng
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationCollege of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou215123P. R. China
| | - Loai K. E. A. Abdelmohsen
- Bio-Organic ChemistryInstitute for Complex Molecular SystemsEindhoven University of TechnologyP.O. Box 513 (STO 3.41), 5600MBEindhovenThe Netherlands
| | - David S. Williams
- School of Cellular and Molecular MedicineUniversity of BristolBristolUK
| | - Jan C. M. van Hest
- Bio-Organic ChemistryInstitute for Complex Molecular SystemsEindhoven University of TechnologyP.O. Box 513 (STO 3.41), 5600MBEindhovenThe Netherlands
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Yang DC, Wang S, Weng XL, Zhang HX, Liu JY, Lin Z. Singlet Oxygen-Responsive Polymeric Nanomedicine for Light-Controlled Drug Release and Image-Guided Photodynamic-Chemo Combination Therapy. ACS Appl Mater Interfaces 2021; 13:33905-33914. [PMID: 34278780 DOI: 10.1021/acsami.1c09044] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Coencapsulation of chemotherapeutic agents and photosensitizers into nanocarriers can help to achieve a combination of chemotherapy and photodynamic therapy for superior antitumor effects. However, precise on-demand drug release remains a major challenge. In addition, the loaded photosensitizers usually tend to aggregate, which can significantly weaken their fluorescent signals and photodynamic activities. To address these issues, herein, a smart nanocarrier termed as singlet oxygen-responsive nanoparticle (SOR-NP) was constructed by introducing singlet oxygen (1O2)-sensitive aminoacrylate linkers into amphiphilic mPEG-b-PCL copolymers. Boron dipyrromethene (BDP) and paclitaxel (PTX) as model therapeutic agents were coloaded into an 1O2-responsive nanocarrier for realizing light-controlled drug release and combination cancer treatment. This polymeric nanocarrier could substantially relieve the aggregation of encapsulated BDP due to the presence of a long hydrophobic chain. Therefore, the formed SOR-NPBDP/PTX nanodrug could generate bright fluorescent signals and high levels of 1O2, which could mediate cell death via PDT and rupture aminoacrylate linker simultaneously, leading to collapse of SOR-NPBDP/PTX and subsequent PTX release. The light-triggered drug release and combined anticancer effects of SOR-NPBDP/PTX were validated in HepG2 and MCF-7 cancer cells and H22 tumor-bearing mice. This study provides a promising strategy for tumor-specific drug release and selective photodynamic-chemo combination treatment.
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Affiliation(s)
- De-Chao Yang
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Shuai Wang
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Xiao-Lu Weng
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Hong-Xia Zhang
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Jian-Yong Liu
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou 350108, China
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zhonghui Lin
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou University, Fuzhou 350108, China
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Chambre L, Rosselle L, Barras A, Aydin D, Loczechin A, Gunbay S, Sanyal R, Skandrani N, Metzler-Nolte N, Bandow JE, Boukherroub R, Szunerits S, Sanyal A. Photothermally Active Cryogel Devices for Effective Release of Antimicrobial Peptides: On-Demand Treatment of Infections. ACS Appl Mater Interfaces 2020; 12:56805-56814. [PMID: 33289537 DOI: 10.1021/acsami.0c17633] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
There has been significant interest in the use of peptides as antimicrobial agents, and peptide containing hydrogels have been proposed as biological scaffolds for various applications. Limited stability and rapid clearance of small molecular weight peptides pose challenges to their widespread implementation. As a common approach, antibacterial peptides are physically loaded into hydrogel scaffolds, which leads to continuous release through the passive mode with spatial control but provides limited control over drug dosage. Although utilization of peptide covalent linkage onto hydrogels addresses partially this problem, the peptide release is commonly too slow. To alleviate these challenges, in this work, maleimide-modified antimicrobial peptides are covalently conjugated onto furan-based cryogel (CG) scaffolds via the Diels-Alder cycloaddition at room temperature. The furan group offers a handle for specific loading of the peptides, thus minimizing passive and burst drug release. The porous nature of the CG matrix provides rapid loading and release of therapeutic peptides, apart from high water uptake. Interfacing the peptide adduct containing a CG matrix with a reduced graphene oxide-modified Kapton substrate allows "on-demand" photothermal heating upon near-infrared (NIR) irradiation. A fabricated photothermal device enables tunable and efficient peptide release through NIR exposure to kill bacteria. Apart from spatial confinement offered by this CG-based bandage, the selective ablation of planktonic Staphylococcus aureus is demonstrated. It can be envisioned that this modular "on-demand" peptide-releasing device can be also employed for other topical applications by appropriate choice of therapeutic peptides.
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Affiliation(s)
- Laura Chambre
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - Léa Rosselle
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
- TISSUEAEGIS SAS, 14E Rue Pierre de Coubertin, Dijon 21000, France
| | - Alexandre Barras
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
| | - Duygu Aydin
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - Aleksandra Loczechin
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Suzan Gunbay
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - Rana Sanyal
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
- Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
- RS Research, Teknopark Istanbul, Pendik, Istanbul 34912, Turkey
| | - Nadia Skandrani
- TISSUEAEGIS SAS, 14E Rue Pierre de Coubertin, Dijon 21000, France
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Julia Elisabeth Bandow
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, 44801 Bochum, Germany
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
- Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
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10
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Chen L, Kenkel SM, Hsieh PH, Gryka MC, Bhargava R. Freeform Three-Dimensionally Printed Microchannels via Surface-Initiated Photopolymerization Combined with Sacrificial Molding. ACS Appl Mater Interfaces 2020; 12:50105-50112. [PMID: 33091299 DOI: 10.1021/acsami.0c12158] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Precise freeform microchannels within an aqueous environment have several biomedical applications but remain a challenge to fabricate. Carbohydrate glass materials have shown potential for three-dimensionally (3D) printing precise, microscale structures and are suitable as a sacrificial material to reconstruct complex channel architectures, but due to the rapid dissolution kinetics in hydrogels and the aqueous environment, protective coatings are required. Here, conformal coatings were applied to carbohydrate structures via surface-initiated photopolymerization (SIP) by incorporating a photoinitiator (PI) into freeform 3D printed isomalt structures using a custom 3D printer. Structures were then immersed into a photocurable prepolymer bath and exposed to light for reaction initiation. To achieve uniform distribution of photoinitiator molecules in 3D printed constructs, miscibility between commercial photoinitiators and isomalt was modeled using the group contribution method. A dye-based, type-two photoinitiator, Eosin Y disodium salt (EY), was selected for its miscibility with isomalt and stability under high temperature. A previously described Eosin Y (EY)/triethanolamine (TEA) radical polymerization system was used to polymerize poly(ethylene glycol) diacrylate (PEGDA). Attenuated total reflectance-Fourier transform infrared (ATR-FTIR), surface morphology, and swelling ratio characterizations via SIP were performed. Coatings around freeform structures and solid surfaces were presented to demonstrate the capability of coating complex architectures. This coating method should facilitate the application of 3D sacrificial molding in a variety of hydrogels toward building biomimetic vascular constructs.
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Affiliation(s)
- Lin Chen
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Seth M Kenkel
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Pei-Hsuan Hsieh
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Mark C Gryka
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Rohit Bhargava
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Departments of Chemistry, Mechanical Science and Engineering, Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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11
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Park HS, Kim J, Cho MY, Cho YJ, Suh YD, Nam SH, Hong KS. Effectual Labeling of Natural Killer Cells with Upconverting Nanoparticles by Electroporation for In Vivo Tracking and Biodistribution Assessment. ACS Appl Mater Interfaces 2020; 12:49362-49370. [PMID: 33050704 DOI: 10.1021/acsami.0c12849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Natural killer (NK) cells, which are cytotoxic lymphocytes of the innate immune system and recognize cancer cells via various immune receptors, are promising agents in cell immunotherapy. To utilize NK cells as a therapeutic agent, their biodistribution and pharmacokinetics need to be evaluated following systemic administration. Therefore, in vivo imaging and tracking with efficient labeling and quantitative analysis of NK cells are required. However, the lack of the phagocytic capacity of NK cells makes it difficult to establish breakthroughs in cell labeling and subsequent in vivo studies. Herein, an effective labeling of upconverting nanoparticles (UCNPs) in NK cells is proposed using electroporation with high sensitivity and stability. The labeling performance of UCNPs functionalized with carboxy-polyethylene glycol (PEG) is better than with methoxy-PEG or with amine-PEG. The labeling efficiency becomes higher, but cell damage is greater as electric field increases; thus, there is an optimum electroporation condition for internalization of UCNPs into NK cells. The tracking and biodistribution imaging analyses of intravenously injected NK cells show that the labeled NK cells are initially distributed primarily in lungs and then spread to the liver and spleen. These advances will accelerate the application of NK cells as key components of immunotherapy against cancer.
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Affiliation(s)
- Hye Sun Park
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea
| | - Jongwoo Kim
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- Laboratory for Advanced Molecular Probing (LAMP), Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Mi Young Cho
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea
| | - Youn-Joo Cho
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Korea
| | - Yung Doug Suh
- Laboratory for Advanced Molecular Probing (LAMP), Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Sang Hwan Nam
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
- Laboratory for Advanced Molecular Probing (LAMP), Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Kwan Soo Hong
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Korea
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12
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Thankappan H, Semsarilar M, Li S, Chang Y, Bouyer D, Quemener D. Synthesis of Block Copolymer Brush by RAFT and Click Chemistry and Its Self-Assembly as a Thin Film. Molecules 2020; 25:molecules25204774. [PMID: 33080832 PMCID: PMC7587578 DOI: 10.3390/molecules25204774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 11/16/2022]
Abstract
A well-defined block copolymer brush poly(glycidyl methacrylate)-graft-(poly(methyl methacrylate)-block- poly(oligo(ethylene glycol) methyl ether methacrylate)) (PGMA-g-(PMMA-b-POEGMA)) is synthesized via grafting from an approach based on a combination of click chemistry and reversible addition-fragmentation chain transfer (RAFT) polymerization. The resulting block copolymer brushes were characterized by 1H-NMR and size exclusion chromatography (SEC). The self-assembly of the block copolymer brush was then investigated under selective solvent conditions in three systems: THF/water, THF/CH3OH, and DMSO/CHCl3. PGMA-g-(PMMA-b-POEGMA) was found to self-assemble into spherical micelle structures as analyzed by transmission electron microscopy (TEM) and dynamic light scattering (DLS). The average size of the particles was much smaller in THF/CH3OH and DMSO/CHCl3 as compared with the THF/water system. Thin film of block copolymer brushes with tunable surface properties was then prepared by the spin-coating technique. The thickness of the thin film was confirmed by scanning electron microscopy (SEM). Atom force microscopy (AFM) analysis revealed a spherical morphology when the block copolymer brush was treated with poor solvents for the backbone and hydrophobic side chains. The contact angle measurements were used to confirm the surface rearrangements of the block copolymer brushes.
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Affiliation(s)
- Hajeeth Thankappan
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Mona Semsarilar
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Suming Li
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Yung Chang
- Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, 200, Chung-Bei Rd., Chungli, Taoyuan, 320, Taiwan;
| | - Denis Bouyer
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
| | - Damien Quemener
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France; (H.T.); (M.S.); (S.L.); (D.B.)
- Correspondence:
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13
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Folgado E, Mayor M, Ladmiral V, Semsarilar M. Evaluation of Self-Assembly Pathways to Control Crystallization-Driven Self-Assembly of a Semicrystalline P(VDF- co-HFP)- b-PEG- b-P(VDF- co-HFP) Triblock Copolymer. Molecules 2020; 25:E4033. [PMID: 32899379 PMCID: PMC7504740 DOI: 10.3390/molecules25174033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/25/2020] [Accepted: 09/02/2020] [Indexed: 11/30/2022] Open
Abstract
To date, amphiphilic block copolymers (BCPs) containing poly(vinylidene fluoride-co-hexafluoropropene) (P(VDF-co-HFP)) copolymers are rare. At moderate content of HFP, this fluorocopolymer remains semicrystalline and is able to crystallize. Amphiphilic BCPs, containing a P(VDF-co-HFP) segment could, thus be appealing for the preparation of self-assembled block copolymer morphologies through crystallization-driven self-assembly (CDSA) in selective solvents. Here the synthesis, characterization by 1H and 19F NMR spectroscopies, GPC, TGA, DSC, and XRD; and the self-assembly behavior of a P(VDF-co-HFP)-b-PEG-b-P(VDF-co-HFP) triblock copolymer were studied. The well-defined ABA amphiphilic fluorinated triblock copolymer was self-assembled into nano-objects by varying a series of key parameters such as the solvent and the non -solvent, the self-assembly protocols, and the temperature. A large range of morphologies such as spherical, square, rectangular, fiber-like, and platelet structures with sizes ranging from a few nanometers to micrometers was obtained depending on the self-assembly protocols and solvents systems used. The temperature-induced crystallization-driven self-assembly (TI-CDSA) protocol allowed some control over the shape and size of some of the morphologies.
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Affiliation(s)
- Enrique Folgado
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France;
- IEM, Univ Montpellier, CNRS, ENSCM, Montpellier, France;
| | - Matthias Mayor
- IEM, Univ Montpellier, CNRS, ENSCM, Montpellier, France;
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14
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Cėpla V, Rakickas T, Stankevičienė G, Mazėtytė-Godienė A, Baradokė A, Ruželė Ž, Valiokas RN. Photografting and Patterning of Poly(ethylene glycol) Methacrylate Hydrogel on Glass for Biochip Applications. ACS Appl Mater Interfaces 2020; 12:32233-32246. [PMID: 32438798 DOI: 10.1021/acsami.0c04085] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An efficient procedure for chemical initiator-free, in situ synthesis of a functional polyethylene glycol methacrylate (PEG MA) hydrogel on regular glass substrates is reported. It is demonstrated that self-initiated photografting and photopolymerization driven by UV irradiation can yield tens of nanometer-thick coatings of carboxy-functionalized PEG MA on the aldehyde-terminated borosilicate glass surface. The most efficient formulation for hydrogel synthesis contained methyl methacrylic acid (MAA), 2-hydroxyethyl methacrylate (HEMA), and PEG methacrylate (PEG10MA) monomers (1:1:1). The resulting HEMA/PEG10MA/MAA (HPMAA) coatings had a defined thickness in the range from 11 to 50 nm. The physicochemical properties of the synthesized HPMAA coatings were analyzed by combining water contact angle measurements, stylus profilometry, imaging null ellipsometry, and atomic force microscopy (AFM). The latter technique was employed in the quantitative imaging mode not only for direct probing of the surface topography but also for swelling behavior characterization in the pH range from 4.5 to 8.0. The estimated high swelling ratios of the HPMAA hydrogel (up to 3.2) together with its good stability and resistance to nonspecific protein binding were advantageous in extracellular matrix mimetics via patterning of fibronectin (FN) at a resolution close to 200 nm. It was shown that the fabricated FN micropatterns on HPMAA were equally suitable for single-cell arraying, as well as controlled cell culture lasting at least for 96 h.
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Affiliation(s)
- Vytautas Cėpla
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
| | - Tomas Rakickas
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
| | - Gintarė Stankevičienė
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
| | - Airina Mazėtytė-Godienė
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
| | - Aušra Baradokė
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
| | - Živilė Ruželė
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
| | - Ramu Nas Valiokas
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
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15
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Rahman MA, Jui MS, Bam M, Cha Y, Luat E, Alabresm A, Nagarkatti M, Decho AW, Tang C. Facial Amphiphilicity-Induced Polymer Nanostructures for Antimicrobial Applications. ACS Appl Mater Interfaces 2020; 12:21221-21230. [PMID: 31939652 DOI: 10.1021/acsami.9b19712] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
New antimicrobial agents are needed to address ever-increasing antimicrobial resistance and a growing epidemic of infections caused by multidrug resistant pathogens. We design nanostructured antimicrobial copolymers containing multicyclic natural products that bear facial amphiphilicity. Bile acid based macromolecular architectures of these nanostructures can interact preferentially with bacterial membranes. Incorporation of polyethylene glycol into the copolymers not only improved the colloidal stability of nanostructures but also increased the biocompatibility. This study investigated the effects of facial amphiphilicity, polymer architectures, and self-assembled nanostructures on antimicrobial activity. Advanced nanostructures such as spheres, vesicles, and rod-shaped aggregates are formed in water from the facial amphiphilic cationic copolymers via supramolecular interactions. These aggregates were particularly interactive toward Gram-positive and Gram-negative bacterial cell membranes and showed low hemolysis against mammalian cells.
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Affiliation(s)
| | | | - Marpe Bam
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, South Carolina 29209, United States
| | | | | | | | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, South Carolina 29209, United States
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16
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Zong L, Wang Y, Qiao P, Yu K, Hou X, Wang P, Zhang Z, Pang X, Pu X, Yuan Q. Reduction-sensitive poly(ethylene glycol)-polypeptide conjugate micelles for highly efficient intracellular delivery and enhanced antitumor efficacy of hydroxycamptothecin. Nanotechnology 2020; 31:165102. [PMID: 31899896 DOI: 10.1088/1361-6528/ab6749] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The non-specific biodistribution of traditional chemotherapeutic drugs against tumors is the key factor that causes systemic toxicity and hinders their clinical application. In this study, a reduction-sensitive polymer conjugate micelle was manufactured to achieve tumor-specific targeting, reduce toxic side-effects and improve anti-tumor activity of a natural anti-cancer drug, hydroxycamptothecin (HCPT). Therefore, HCPT was conjugated with methoxy-poly(ethylene glycol)-poly(β-benzyl-L-aspartate) (mPEG-PBLA) by a disulfide bond or succinate bond for the first time to obtain the mPEG-PBLA-SS-HCPT (PPSH) and mPEG-PBLA-CC-HCPT (PPCH) that would form micelles after high-speed agitation and dialysis. The PPSH micelles showed an average particle size of 126.3 nm, a low polydispersity index of 0.209, and a negative surface charge of -21.1 mV zeta potential. Transmission electron microscopy showed the PPSH micelles to have spherical morphology. PPSH had a low critical micelle concentration of 1.29 μg ml-1 with high dilution stability, storage stability and reproducibility. Moreover, the particle size of the PPSH micelles had no significant change after incubation with rat plasma for 72 h, probably resulting in high long circulation in the blood. The PPSH micelles showed significant reduction sensitivity to glutathione. Their sizes increased by 403.2 nm after 24 h post-incubation, and 87.6% drug release was achieved 48 h post-incubation with 40 mM glutathione solutions. The PPSH micelles showed stronger inhibition of HepG2 cells in vitro and growth of H-22 tumor in vivo than the PPCH and HCPT solutions after intravenous injection. The accumulation of PPSH micelles in the tumor tissue contributed to the high anti-tumor effect with little side-effect on the normal tissues. The reduction-sensitive PPSH micelles were a promising carrier of HCPT and other poorly soluble anti-cancer drugs.
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17
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Luo Z, Xu J, Sun J, Huang H, Zhang Z, Ma W, Wan Z, Liu Y, Pardeshi A, Li S. Co-delivery of 2-Deoxyglucose and a glutamine metabolism inhibitor V9302 via a prodrug micellar formulation for synergistic targeting of metabolism in cancer. Acta Biomater 2020; 105:239-252. [PMID: 31958597 PMCID: PMC7105957 DOI: 10.1016/j.actbio.2020.01.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/09/2020] [Accepted: 01/14/2020] [Indexed: 12/25/2022]
Abstract
The unique metabolic demand of cancer cells suggests a new therapeutic strategy targeting the metabolism in cancers. V9302 is a recently reported inhibitor of ASCT2 amino acid transporter which shows promising antitumor activity by blocking glutamine uptake. However, its poor solubility in aqueous solutions and tumor cells' compensatory metabolic shift to glucose metabolism may limit the antitumor efficacy of V9302. 2-Deoxyglucose (2-DG), a derivative of glucose, has been developed as a potential antitumor agent through inhibiting glycolysis in tumor cells. In order to achieve enhanced antitumor effect by inhibiting both metabolic pathways, a 2-DG prodrug-based micellar carrier poly-(oligo ethylene glycol)-co-poly(4-((4-oxo-4-((4-vinylbenzyl)oxy)butyl)disulfaneyl)butanoic acid)-(2-deoxyglucose) (POEG-p-2DG) was developed. POEG-p-2DG well retained the pharmacological activity of 2-DG in vitro and in vivo, More importantly, POEG-p-2DG could self-assemble to form micelles that were capable of loading V9302 to achieve co-delivery of 2-DG and V9302. V9302-loaded POEG-p2DG micelles were small in sizes (~10 nm), showed a slow kinetics of drug release and demonstrated targeted delivery to tumor. In addition, V9302 loaded POEG-p-2DG micelles exhibited improved anti-tumor efficacy both in vitro and in vivo. Interestingly, 2-DG treatment further decreased the glutamine uptake when combined with V9302, likely due to inhibition of ASCT2 glycosylation. These results suggest that POEG-p2DG prodrug micelles may serve as a dual functional carrier for V9302 to achieve synergistic targeting of metabolism in cancers. STATEMENT OF SIGNIFICANCE: Unique cancer cell's metabolism profile denotes a new therapeutic strategy. V9302 is a recently reported glutamine metabolism inhibitor that shows promising antitumor activity. However, its poor waster solubility and tumor cell's compensatory metabolic network may limit its potential clinical application. 2-Deoxyglucose(2-DG) is a widely used glycolysis inhibitor. However, its clinical application is hindered by low efficacy as monotherapy. Thus, in this study, we developed a redox-sensitive, 2-DG-based prodrug polymer, as a dual-functional carrier for co-delivery of V9302 and 2-DG as a combination strategy. V9302 loaded POEG-p-2DG micelle showed significantly improved antitumor activity through synergistic targeting of both glutamine and glycolysis metabolism pathway. More interestingly, POEG-p-2DG itself further facilitates inhibition of glutamine metabolism, likely through inhibition of ASCT2 glycosylation.
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Affiliation(s)
- Zhangyi Luo
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Jieni Xu
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Jingjing Sun
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Haozhe Huang
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Ziqian Zhang
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Weina Ma
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Zhuoya Wan
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Yangwuyue Liu
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Apurva Pardeshi
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States
| | - Song Li
- Center for pharmacogenetics, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, United States; University of Pittsburgh Cancer Institute, University of Pittsburgh, PA 15261, United States.
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18
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Abstract
We report an elastase-responsive, H2S-releasing hydrogel prepared by covalently crosslinking a mixture of carboxymethylcellulose and poly(ethylene glycol) with an elastase-degradable peptide functionalized with an H2S-releasing S-aroylthiooxime (SATO) unit. Addition of elastase triggered a gel-to-sol transition, which exposed SATOs, leading to more and longer H2S release compared to untriggered gels.
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Affiliation(s)
- Mingjun Zhou
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, USA.
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19
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Li X, Lu C, Xia W, Quan G, Huang Y, Bai X, Yu F, Xu Q, Qin W, Liu D, Pan X. Poly(L-Glutamic Acid)-Based Brush Copolymers: Fabrication, Self-assembly, and Evaluation as Efficient Nanocarriers for Cationic Protein Drug Delivery. AAPS PharmSciTech 2020; 21:78. [PMID: 31970547 DOI: 10.1208/s12249-020-1624-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/08/2020] [Indexed: 02/05/2023] Open
Abstract
Protein drugs were considered to be the first choice to treat many human diseases, but their clinical application was usually limited by their short half-life and lack of validated targeted therapy. Here, a series of folate-functionalized poly(ethylene glycol)-b-(poly(2-aminoethyl-L-glutamate)-g-poly(L-glutamic acid))s (FA-PEG-b-(PELG-g-PLGA)s) were designed as tumor-targeted carriers for cationic protein delivery. Compared with traditional copolymers consisting of PEG and linear charged hydrophilic blocks, FA-PEG-b-(PELG-g-PLGA) with brush-like polyelectrolyte segments were beneficial to improving their electrostatic interactions with loading protein molecules, thus increasing drug-loading stability and protecting encapsulated proteins from degradation. The designed polymer brushes could efficiently encapsulate cytochrome C (CytC), a cationic model protein, to form polyion complex (PIC) micelles with an average particle size of approximately 200 nm. An in vitro drug release study showed that the drug-loading stability of the formed PIC micelles was largely improved. The functionalization of the block copolymer carriers with a targeting folate group enhanced the tumor cell growth inhibition and total apoptotic rates induced by CytC. Our results shed light on the unique advantages of brush-like polymer carriers in delivering cationic proteins, and the poly(L-glutamic acid)-based linear-brush diblock copolymers could be applied as a versatile delivery platform for molecular targeting in cancer therapy.
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Affiliation(s)
- Xin Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
- The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Chao Lu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Wenquan Xia
- Shantou University Medical College, Shantou, 515041, China
| | - Guilan Quan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Ying Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xuequn Bai
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Feiyuan Yu
- Shantou University Medical College, Shantou, 515041, China
| | - Qian Xu
- Shantou University Medical College, Shantou, 515041, China
| | - Wanbing Qin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Daojun Liu
- Shantou University Medical College, Shantou, 515041, China
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
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20
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Patel A, Lima MRN, Cho HY, Lee KB, Murthy NS, Kohn J. Disassembly of Nanospheres with a PEG Shell upon Adsorption onto PEGylated Substrates. Langmuir 2020; 36:232-241. [PMID: 31825622 DOI: 10.1021/acs.langmuir.9b03042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polymeric nanospheres have the ability to encapsulate drugs and are therefore widely used in drug delivery applications. Structural transformations that affect drug release from nanospheres are governed by the surrounding environment. To understand these effects, we investigated the adsorption behavior of three types of nanospheres onto model surfaces using quartz crystal microbalance with dissipation (QCM-D) and by atomic force microscopy (AFM). Substrates were prepared from polymers with different degrees of PEGylation (0, 1, and 15%). Nanospheres were prepared via self-assembly of block copolymers. Tyrosine-derived nanospheres are A-B-A triblock copolymers with methoxy poly(ethylene glycol) (PEG) as the A-blocks and an alternating copolymer of desaminotyrosyl-tyrosine octyl ester and suberic acid oligo(DTO-SA) as the B-block. On non-PEGylated substrates, these nanospheres assembled into a close-packed structure; on PEGylated substrates, the adsorbed nanospheres formed a continuous film, thinner than the size of the nanospheres suggesting unraveling of the PEG corona and disassembly of the nanospheres. Also, the adsorption was concentration-dependent, the final thickness being attained at exponentially longer times at lower concentrations. Such substrate- and concentration-dependent behavior was not observed with Pluronic F-127 and PEG-poly(caprolactone) (PCL) nanospheres. Since the essential difference among the three nanospheres is the composition of the core, we conclude that the core influences the adsorption characteristics of the nanospheres as a consequence of their disassembly upon adsorption. These results are expected to be useful in designing nanospheres for their efficient transport across vascular barriers and for delivering drugs to their targets.
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21
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Ghorbanzade S, Naghib SM. Nanoscaled Materials for Drug Delivery into Cells/Stem Cells. Methods Mol Biol 2020; 2125:181-192. [PMID: 31691926 DOI: 10.1007/7651_2019_268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The successful and efficient transport and delivery of drugs and biomolecules to cells/stem cells have revealed the main challenge in clinical therapy development. Special materials and systems are used in smart drug delivery to improve the effectiveness by controlling drug release and decreasing the side effects. Synthesized water-dispersible polymer-covalent organic framework nanocomposites are integrated via the assembly of PEG-modified monofunctional curcumin derivatives and amine-functionalized covalent organic frameworks for in vitro and in vivo drug delivery. The smart delivery system exhibits an efficient targeting strategy for cancer therapy and also demonstrates an important promise on the improvement of a smart system for cancer cell-/stem cell-targeted drug delivery.
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Affiliation(s)
- Sadegh Ghorbanzade
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Tehran, Iran
| | - Seyed Morteza Naghib
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Tehran, Iran.
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22
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Ji W, Smith PN, Koepsel RR, Andersen JD, Baker SL, Zhang L, Carmali S, Myerson JW, Muzykantov V, Russell AJ. Erythrocytes as carriers of immunoglobulin-based therapeutics. Acta Biomater 2020; 101:422-435. [PMID: 31669698 DOI: 10.1016/j.actbio.2019.10.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/18/2019] [Accepted: 10/22/2019] [Indexed: 11/25/2022]
Abstract
The global and economic success of immunoglobulin-based therapeutics in treating a wide range of diseases has heightened the need to further enhance their efficacy and lifetime while diminishing deleterious side effects. The three most ubiquitous challenges of therapeutic immunoglobulin delivery are their relatively short lifetimes in vivo, the immunologic consequences of soluble antibody-antigen complexes, and the emergence of anti-drug antibodies. We describe the rapid, cell-tolerated chemical engineering of the erythrocyte membrane in order to display any antibody, our model system being the display of anti-Tumor Necrosis Factor (anti-TNFα), on the surface of long-lived red blood cells (RBCs) while masking the antibody's Fc region. We developed four synthetic approaches to generate RBC-Staphylococcal protein A (RBC-SpA) complexes: amino group targeting through N-hydrosuccinidyl ester-functionalized homobifunctional poly(ethylene glycol) (NHS-PEG-NHS), direct thiol group targeting using heterobifunctional NHS-PEG-maleimide (NHS-PEG-MAL), converted thiol targeting using heterobifunctional NHS-PEG-MAL, and click chemistry using heterobifunctional NHS-PEG-azido (NHS-PEG-N3) and NHS-PEG-alkyne (NHS-PEG-alk). The RBC-PEG-SpA complexes were formed within minutes, followed by the attachment of over 105 antibodies per RBC to the accessible RBC-bound SpA via Fc-Protein A coupling. The RBC-PEG-SpA-antibody arrays were shown to be stable for more than 60 days in PBS and for more than 42 days in serum containing buffer. RBC-PEG-SpA-antibody complexes were shown to remove TNFα from physiological buffer and had similar mechanical properties to unmodified RBCs. Out of the four approaches, the converted thiol method provided the most controlled chemistry and construct stability. We are now ideally positioned to determine the long-term in vivo efficacy of chemically membrane-engineered RBCs to remove antigens, like TNFα, from serum. STATEMENT OF SIGNIFICANCE: The global and economic success of immunoglobulin-based therapeutics in treating a wide range of diseases has heightened the need to further enhance their efficacy and lifetime while diminishing deleterious side effects. The three most ubiquitous challenges of therapeutic immunoglobulin delivery are their relatively short lifetimes in vivo, the immunologic consequences of soluble antibody-antigen complexes, and the emergence of anti-drug antibodies. We describe the rapid, cell-tolerated chemical engineering of the erythrocyte membrane to display any antibody, our model system being the display of anti-Tumor Necrosis Factor (anti-TNFα), on the surface of long-lived red blood cells (RBCs) while masking the antibody's Fc region. Conversion of RBCs into therapeutic delivery vehicles, we argue, would enhance the circulation life of immunoglobulin-based therapeutics while simultaneously evading deleterious immune response.
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Affiliation(s)
- Weihang Ji
- Disruptive Health Technology Institute, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
| | - Paige N Smith
- Department of Biological Sciences, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA
| | - Richard R Koepsel
- Disruptive Health Technology Institute, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
| | - Jill D Andersen
- Disruptive Health Technology Institute, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
| | - Stefanie L Baker
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
| | - Libin Zhang
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
| | - Sheiliza Carmali
- Disruptive Health Technology Institute, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
| | - Jacob W Myerson
- Department of Pharmacology and Center for Translational Targeted Therapeutics and Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Vladimir Muzykantov
- Department of Pharmacology and Center for Translational Targeted Therapeutics and Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alan J Russell
- Disruptive Health Technology Institute, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA; Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA; Department of Biological Sciences, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA 15213, USA; Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA.
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Boratto FA, Franco MS, Barros ALB, Cassali GD, Malachias A, Ferreira LAM, Leite EA. Alpha-tocopheryl succinate improves encapsulation, pH-sensitivity, antitumor activity and reduces toxicity of doxorubicin-loaded liposomes. Eur J Pharm Sci 2019; 144:105205. [PMID: 31874285 DOI: 10.1016/j.ejps.2019.105205] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/27/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023]
Abstract
Doxorubicin (DOX) plays an important role in cancer treatment; however, high cardiotoxicity and low penetration in solid tumors are the main limitations of its use. Liposomal formulations have been developed to attenuate the DOX toxicity, but the technological enhancement of the liposomal formulation as well as the addition of another agent with antitumor properties, like alpha-tocopheryl succinate (TS), a semi-synthetic analog of vitamin E, could certainly bring benefits. Thus, in this study, it was proposed the development of liposomes composed of DOX and TS (pHSL-TS-DOX). A new DOX encapsulation method, without using the classic ammonium sulfate gradient with high encapsulation percentage was developed. Analysis of Small Angle X-ray Scattering (SAXS) and release study proved the pH-sensitivity of the developed formulation. It was observed stabilization of tumor growth using pHSL-TS-DOX when compared to free DOX. The toxicity tests showed the safety of this formulation since it allowed body weight initial recovery after the treatment and harmless to heart and liver, main target organs of DOX toxicity. The developed formulation also avoided the occurrence of myelosuppression, a typical adverse effect of DOX. Therefore, pHSL-TS-DOX is a promising alternative for the treatment of breast cancer since it has adequate antitumor activity and a safe toxicity profile.
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Affiliation(s)
- F A Boratto
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - M S Franco
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - A L B Barros
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - G D Cassali
- Department of Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - A Malachias
- Department of Physics, Institute of Exact Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - L A M Ferreira
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - E A Leite
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil.
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Shamul JG, Shah SR, Kim J, Schiapparelli P, Vazquez-Ramos CA, Lee BJ, Patel KK, Shin A, Quinones-Hinojosa A, Green JJ. Verteporfin-Loaded Anisotropic Poly(Beta-Amino Ester)-Based Micelles Demonstrate Brain Cancer-Selective Cytotoxicity and Enhanced Pharmacokinetics. Int J Nanomedicine 2019; 14:10047-10060. [PMID: 31920302 PMCID: PMC6935022 DOI: 10.2147/ijn.s231167] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/13/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Nanomedicine can improve traditional therapies by enhancing the controlled release of drugs at targeted tissues in the body. However, there still exists disease- and therapy-specific barriers that limit the efficacy of such treatments. A major challenge in developing effective therapies for one of the most aggressive brain tumors, glioblastoma (GBM), is affecting brain cancer cells while avoiding damage to the surrounding healthy brain parenchyma. Here, we developed poly(ethylene glycol) (PEG)-poly(beta-amino ester) (PBAE) (PEG-PBAE)-based micelles encapsulating verteporfin (VP) to increase tumor-specific targeting. METHODS Biodegradable, pH-sensitive micelles of different shapes were synthesized via nanoprecipitation using two different triblock PEG-PBAE-PEG copolymers varying in their relative hydrophobicity. The anti-tumor efficacy of verteporfin loaded in these anisotropic and spherical micelles was evaluated in vitro using patient-derived primary GBM cells. RESULTS For anisotropic micelles, uptake efficiency was ~100% in GBM cells (GBM1A and JHGBM612) while only 46% in normal human astrocytes (NHA) at 15.6 nM VP (p ≤ 0.0001). Cell killing of GBM1A and JHGBM612 vs NHA was 52% and 77% vs 29%, respectively, at 24 hrs post-treatment of 125 nM VP-encapsulated in anisotropic micelles (p ≤ 0.0001), demonstrating the tumor cell-specific selectivity of VP. Moreover, anisotropic micelles showed an approximately fivefold longer half-life in blood circulation than the analogous spherical micelles in a GBM xenograft model in mice. In this model, micelle accumulation to tumors was significantly greater for anisotropic micelle-treated mice compared to spherical micelle-treated mice at both 8 hrs (~1.8-fold greater, p ≤ 0.001) and 24 hrs (~2.1-fold greater, p ≤ 0.0001). CONCLUSION Overall, this work highlights the promise of a biodegradable anisotropic micelle system to overcome multiple drug delivery challenges and enhance efficacy and safety for the treatment of brain cancer.
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Affiliation(s)
- James G Shamul
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
| | - Sagar R Shah
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Department of Neurosurgery, Mayo Clinic, Jacksonville, FL32224, USA
| | - Jayoung Kim
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
| | | | | | - Ben J Lee
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
| | - Kisha K Patel
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
| | - Alyssa Shin
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
| | | | - Jordan J Green
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Translational Tissue Engineering Center and Institute for NanoBioTechnology, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, MD21231, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer, and The Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins School of Medicine, Baltimore, MD21231, USA
- Department of Ophthalmology, Department of Materials Science and Engineering, and Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD21231, USA
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25
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Li Y, Wu X, Yang B, Zhang X, Li H, Umar A, Rooij NFD, Zhou G, Wang Y. Synergy of CO 2 Response and Aggregation-Induced Emission in a Block Copolymer: A Facile Way To "See" Cancer Cells. ACS Appl Mater Interfaces 2019; 11:37077-37083. [PMID: 31538465 DOI: 10.1021/acsami.9b11945] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Carbon dioxide (CO2), an important gas molecule metabolite produced by the tricarboxylic acid cycle, is a direct signal for identifying cancers in cells and tissues. Herein, design and synthesis of a novel "breathable" block polymer supramolecular assembly probe consisting of a hydrophilic block, an amidine-containing CO2-responsive block, and an aggregation-induced emission (AIE) luminescence block to detect CO2 metabolized by cancer cells is reported. The triblock copolymer poly-(4-undecoxy tetraphenyl ethylene methacrylate)-b-poly-((N-amidino)-(2,3-dihydro-1H-1, 4-methyl-1, 2,3-triazole)-(ethenylbenzene))-b-poly(ethylene oxide) (PTPE-b-PAD-b-PEO) was successfully synthesized and characterized. This triblock copolymer could be self-assembled into "breathable" aqueous solution vesicles. In the presence of CO2, the amidine-containing CO2-responsive block (PAD block) of the vesicle "inhales" an amount of CO2, which causes the volume of the vesicle to expand. The expansion of the vesicle induces the aggregation of the AIE luminescence block (PTPE block), which resulted in the fluorescence intensity enhancement. The supramolecular vesicles "exhale" CO2, and the volume and AIE phenomenon of the vesicles decrease when N2 is passed into the solution. On the basis of this reversible change of fluorescence intensity, HeLa cervical cancer cells, CNE1 nasopharynx cancer cells, 5-8F nasopharynx cancer cells, 16HBE human bronchial epithelial cells, and GES-1 human gastric mucosa epithelial cells have all been successfully detected and identified.
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Affiliation(s)
- Yao Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , P. R. China
- Liaoning Province Key Laboratory of Pulp and Papermaking Engineering , Dalian Polytechnic University , Dalian , Liaoning Province 116034 , P. R. China
| | - Xin Wu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment , Beihang University , Beijing 100191 , P. R. China
| | - Bin Yang
- The Sixth Affiliated Hospital; Department of Biomedical Engineering, School of Basic Medical Sciences , Guangzhou Medical University , Guangzhou 511436 , P. R. China
| | - Xiaokai Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment , Beihang University , Beijing 100191 , P. R. China
| | - Hao Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , P. R. China
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices , Najran University , Najran 11001 , Kingdom of Saudi Arabia
| | - Nicolaas Frans de Rooij
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , P. R. China
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , P. R. China
| | - Yao Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics , South China Normal University , Guangzhou 510006 , P. R. China
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Liu Y, Lang T, Zheng Z, Cheng H, Huang X, Wang G, Yin Q, Li Y. In Vivo Environment-Adaptive Nanocomplex with Tumor Cell-Specific Cytotoxicity Enhances T Cells Infiltration and Improves Cancer Therapy. Small 2019; 15:e1902822. [PMID: 31482673 DOI: 10.1002/smll.201902822] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/13/2019] [Indexed: 06/10/2023]
Abstract
Drug delivery strategies possessing selectivity for cancer cells are eagerly needed in therapy of metastatic breast cancer. In this study, the chemotherapeutic agent, docetaxel (DTX), is conjugated onto heparan sulfate (HS). Aspirin (ASP), which has the activity of anti-metastasis and enhancing T cells infiltration in tumors, is encapsulated into the HS-DTX micelle. Then the cationic polyethyleneimine (PEI)-polyethylene glycol (PEG) copolymer binds to HS via electrostatic force, forming the ASP-loaded HS-DTX micelle (AHD)/PEI-PEG nanocomplex (PAHD). PAHD displays long circulation behavior in blood due to the PEG shell. Under the tumor microenvironment with weakly acidic pH, PEI-PEG separates from AHD, and the free cationic PEI-PEG facilitates the cellular uptake of AHD by increasing permeability of cell membranes. Then the overexpressed heparanase degrades HS, releasing ASP and DTX. PAHD shows specific toxicity toward tumor cells but not normal cells, with advanced activity of inhibiting tumor growth and lung metastasis in 4T1 tumor-bearing mice. The number of CD8+ T cells in tumor tissues is also increased. Therefore, PAHD can become an efficient drug delivery system for breast cancer treatment.
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Affiliation(s)
- Yiran Liu
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
| | - Tianqun Lang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhong Zheng
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
- College of Life Sciences, Jilin University, Changchun, 130012, China
| | - Hui Cheng
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xin Huang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guanru Wang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
| | - Qi Yin
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, 264000, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yaping Li
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
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Yan X, Fang WW, Xue J, Sun TC, Dong L, Zha Z, Qian H, Song YH, Zhang M, Gong X, Lu Y, He T. Thermoresponsive in Situ Forming Hydrogel with Sol-Gel Irreversibility for Effective Methicillin-Resistant Staphylococcus aureus Infected Wound Healing. ACS Nano 2019; 13:10074-10084. [PMID: 31430428 DOI: 10.1021/acsnano.9b02845] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
An in situ forming hydrogel has emerged as a promising wound dressing recently. As physically cross-linked hydrogels are normally unstable, most in situ forming hydrogels are chemically cross-linked. However, big concerns have remained regarding the slow gelation and the potential toxicity of residual functional groups from cross-linkers or the polymer matrix. Herein, we report a sprayable in situ forming hydrogel composed of poly(N-isopropylacrylamide166-co-n-butyl acrylate9)-poly(ethylene glycol)-poly(N-isopropylacrylamide166-co-n-butyl acrylate9) copolymer (P(NIPAM166-co-nBA9)-PEG-P(NIPAM166-co-nBA9), denoted as PEP) and silver-nanoparticles-decorated reduced graphene oxide nanosheets (Ag@rGO, denoted as AG) in response to skin temperature. This thermoresponsive hydrogel exhibits intriguing sol-gel irreversibility at low temperatures for the stable dressing of a wound, which is attributed to the inorganic/polymeric dual network and abundant coordination interactions between Ag@rGO nanosheets and PNIPAM. The biocompatibility and antibacterial ability against methicillin-resistant Staphylococcus aureus (MRSA) of this PEP-AG hydrogel wound dressing are confirmed in vitro and in vivo, which could transparently promote the healing of a MRSA-infected skin defect.
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Affiliation(s)
- Xu Yan
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Wei-Wei Fang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Jingzhe Xue
- Department of Chemistry, Hefei National Research Centre for Physical Sciences at the Microscale, CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics , University of Science and Technology of China , Hefei 230026 , People's Republic of China
| | - Tian-Ci Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Liang Dong
- Department of Chemistry, Hefei National Research Centre for Physical Sciences at the Microscale, CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics , University of Science and Technology of China , Hefei 230026 , People's Republic of China
| | - Zhengbao Zha
- School of Food and Biological Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Haisheng Qian
- School of Food and Biological Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Yong-Hong Song
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Min Zhang
- School of Life Science , Anhui University , Hefei , Anhui 230601 , People's Republic of China
| | - Xinglong Gong
- Department of Chemistry, Hefei National Research Centre for Physical Sciences at the Microscale, CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics , University of Science and Technology of China , Hefei 230026 , People's Republic of China
| | - Yang Lu
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Tao He
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
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28
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Ma R, Ma ZG, Gao JL, Tai Y, Li LJ, Zhu HB, Li L, Dong DL, Sun ZJ. Injectable pegylated niclosamide (polyethylene glycol-modified niclosamide) for cancer therapy. J Biomed Mater Res A 2019; 108:30-38. [PMID: 31433913 DOI: 10.1002/jbm.a.36788] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 08/08/2019] [Accepted: 08/12/2019] [Indexed: 12/31/2022]
Abstract
Niclosamide is an antihelminthic drug. Recent studies show that niclosamide exerts antitumor activity through inhibiting multiple signals including Wnt/β-catenin, mTORC1, signal transducer and activator of transcription 3, NF-κB, notch signals; however, the insolubility and poor bioavailability limits its potential clinic use, the aim of the present work is to synthesize an injectable pegylated niclosamide (polyethylene glycol-modified niclosamide) and investigate its antitumor activity in vitro and in vivo. The pegylated niclosamide (mPEG5000-Nic) was synthesized and the chemical structure was identified by Fourier transform infrared spectra and 1 H nuclear magnetic resonance spectra. The antitumor activity was evaluated in CT26 and HCT116 colon cancer cells in vitro and nude mouse xenograft model of CT26 cells in vivo. The water solubility of niclosamide in mPEG5000-Nic was significantly increased. Niclosamide could be released from mPEG5000-Nic nanoparticles in PBS solution. mPEG5000-Nic inhibited the cell viability of CT26 and HCT116 cells in vitro. No animal death was observed in mice with intraperitoneal injection of mPEG5000-Nic (equivalent to 1000 mg/kg niclosamide) within 24 hr, indicating that mPEG5000-Nic was less toxic. In nude mouse, xenograft model of CT26 colon carcinoma, intraperitoneal injection of mPEG5000-Nic (equivalent to niclosamide 50 mg/kg) inhibited tumor growth but had no effect on animal body weight and heart, liver, kidney, and lung weight in vivo. Meanwhile, in the same model, intraperitoneal injection of the positive clinic drug 5-fluorouracil not only inhibited the tumor growth, but also reduced the animal body weight. Our study demonstrates that pegylated niclosamide is novel niclosamide delivery system with clinical perspective for cancer therapy.
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Affiliation(s)
- Rui Ma
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
| | - Zhen-Gang Ma
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
| | - Jin-Lai Gao
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Yu Tai
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Lan-Jun Li
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Hai-Bin Zhu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Li Li
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
| | - De-Li Dong
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Zhi-Jie Sun
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
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Wang J, Li S, Chen T, Xian W, Zhang H, Wu L, Zhu W, Zeng Q. Nanoscale cationic micelles of amphiphilic copolymers based on star-shaped PLGA and PEI cross-linked PEG for protein delivery application. J Mater Sci Mater Med 2019; 30:93. [PMID: 31392433 DOI: 10.1007/s10856-019-6294-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
To enhance the bioavailability of protein therapeutants and improve the stability of storage and delivery, a series of branched amphiphilic block copolymers consisting of cholic acid (CA) initiated poly(D,L-lactide-co-glycolide) (CA-PLGA) and water-soluble polyethyleneimine cross-linked polyethylene glycol (PEI-PEG) denoted as CA-PLGA-b-(PEI-PEG) were synthesized and characterized. CA-PLGA-b-(PEI-PEG) presented low cytotoxicity by MTT and cck-8 assay. The cationic CA-PLGA-b-(PEI-PEG) micelles (diameter about 100 nm and zeta potential 34-61 mV) were prepared through self-assembly method, and complexed with insulin via electrostatic interaction to obtain nanoscale micelle/insulin complexes. The micelle/insulin complexes-loaded CA-PLGA microspheres (MIC-MS, 10.4 ± 3.85 μm) were manufactured by employing a double emulsion (W1/O/W2) method. The in vitro insulin release behavior and in vivo hypoglycaemic effect of MIC-MS on streptozotocin (STZ) induced diabetic rats were compared with those of the insulin-loaded CA-PLGA microspheres (INS-MS, 7.8 ± 2.57 μm). The initial burst in vitro release of MIC-MS was markedly lower than that of INS-MS (P < 0.01), and the pharmacological availability of MIC-MS via subcutaneous administration was 148.9% relative to INS-MS. Therefore, the cationic CA-PLGA-b-(PEI-PEG) micelles can effectively increase the bioavailability of insulin in CA-PLGA microspheres and can be considered as a potential protein carrier.
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Affiliation(s)
- Jun Wang
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shunying Li
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Tingting Chen
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenjiao Xian
- Department of Histology and Embryology, School of Basic Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Huiwu Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Cancer Therapeutics & Drug Discovery Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Lei Wu
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenting Zhu
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qingbing Zeng
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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Hao F, Lee RJ, Zhong L, Dong S, Yang C, Teng L, Meng Q, Lu J, Xie J, Teng L. Hybrid micelles containing methotrexate-conjugated polymer and co-loaded with microRNA-124 for rheumatoid arthritis therapy. Theranostics 2019; 9:5282-5297. [PMID: 31410215 PMCID: PMC6691571 DOI: 10.7150/thno.32268] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 05/29/2019] [Indexed: 12/13/2022] Open
Abstract
Purpose: Methotrexate (MTX) is a first-line drug for rheumatoid arthritis (RA)therapy. However, MTX monotherapy often results in irreversible joint damage due to its slow onset of action and long duration. microRNA-124 (miR-124) has shown direct bone protection activity against RA. A co-delivery system for MTX and microRNA combination may provide therapeutic synergy. Methods: Methotrexate-conjugated polymer hybrid micelles (M-PHMs) were prepared by self-assembly of two functional amphiphilic polymers (MTX-PEI-LA and mPEG-LA) at an optimized weight ratio. Incorporation of microRNA was achieved through electrostatic interactions between microRNA and cationic polymer MTX-PEI-LA. Cellular uptake, endosome escape, biodistribution, and therapeutic efficacy of M-PHMs/miR-124 complexes were investigated and evaluated in RAW264.7 cells and a rat adjuvant-induced arthritis (AIA) model. Results: M-PHMs/miR-124 complexes exhibited folate receptor-mediated uptake in activated RAW264.7 cells. miR-124 was able to escape from the endosome and down-regulate nuclear factor of activated T cells cytoplasmic1 (NFATc1). M-PHMs/miR-124 complexes accumulated in inflamed joints of AIA rats and showed superior therapeutic efficacy through both anti-inflammatory effect and direct bone protective effect. Combination of miR-124 and MTX in these micelles induced disease remission. Conclusions: M-PHMs/miR-124 was highly effective against RA through therapeutic synergy. Additional studies are warranted to further investigate its therapeutic potential and delineate its mechanisms of action.
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Affiliation(s)
- Fei Hao
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Robert J Lee
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
- College of Pharmacy, The Ohio State University, Columbus, 500 W 12th Ave, Columbus, OH 43210, USA
| | - Lihuang Zhong
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Shiyan Dong
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Chunmiao Yang
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Lirong Teng
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Qingfan Meng
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Jiahui Lu
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Jing Xie
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
| | - Lesheng Teng
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun130012, P.R. China
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Sun B, Chen Y, Yu H, Wang C, Zhang X, Zhao H, Chen Q, He Z, Luo C, Sun J. Photodynamic PEG-coated ROS-sensitive prodrug nanoassemblies for core-shell synergistic chemo-photodynamic therapy. Acta Biomater 2019; 92:219-228. [PMID: 31078764 DOI: 10.1016/j.actbio.2019.05.008] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/15/2019] [Accepted: 05/03/2019] [Indexed: 12/21/2022]
Abstract
The combination of chemotherapy with photodynamic therapy (PDT) holds promising applications in cancer therapy. However, co-encapsulation of chemotherapeutic agents and photosensitizers (PS) into the conventional nanocarriers suffers from inefficient co-loading and aggregation-caused quenching (ACQ) effect of PS trapped in dense carrier materials. Herein, we report a light-activatable photodynamic PEG-coated prodrug nanoplatform for core-shell synergistic chemo-photodynamic therapy. A novel photodynamic polymer is rationally designed and synthesized by conjugating pyropheophorbide a (PPa) to polyethylene glycol 2000 (PEG2k). PPa is used as the hydrophobic and photodynamic moiety of the amphipathic PPa-PEG2k polymer. Then, a core-shell nanoassembly is prepared, with an inner core of a reactive oxygen species (ROS)-responsive oleate prodrug of paclitaxel (PTX) and an outer layer of PPa-PEG2k. PPa-PEG2k serves for both PEGylation and PDT. Instead of being trapped in the inner core, PPa in the outer PPa-PEG2k layer significantly alleviates the ACQ effect. Under laser irradiation, ROS generated by PPa-PEG2k not only is used for PDT but also synergistically promotes PTX release in combination with the endogenous ROS overproduced in tumor cells. The photodynamic PEG-coated nanoassemblies demonstrated synergistic antitumor activity in vivo. Such a unique nanoplatform, with an inner chemotherapeutic core and an outer photodynamic PEG shell, provides a new strategy for synergistic chemo-photodynamic therapy. STATEMENT OF SIGNIFICATION: The combination of chemotherapy with photodynamic therapy (PDT) holds promising prospects in cancer therapy. However, it remains a tremendous challenge to effectively co-deliver chemotherapeutic drugs and photosensitizers into tumors. Herein, we construct a photodynamic PEGylation-coated prodrug-nanoplatform for high-efficiency synergistic cancer therapy, which is composed of a light-activatable PPa-PEG2k shell and a ROS-responsive paclitaxel (PTX) prodrug core. The PPa-PEG2k-generated ROS not only was used for synergistic PTX release but also synergistically facilitated tumor cell apoptosis in combination with PTX-initiated chemo-cytotoxicity. The light-activatable nanoassemblies exhibited multiple drug delivery advantages including high co-loading efficiency, self-enhanced PTX release, extended circulation time, favorable biodistribution, and potent synergistic anticancer activity. Our findings provide a new strategy for the rational design of advanced nano-DDS for high-efficiency combinational chemo-photodynamic therapy.
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Affiliation(s)
- Bingjun Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Yao Chen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Han Yu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Chen Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Xuanbo Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Hanqing Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Qin Chen
- Department of Pharmacy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, PR China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Cong Luo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
| | - Jin Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
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Chen Q, Luo L, Xue Y, Han J, Liu Y, Zhang Y, Yin T, Wang L, Cun D, Gou J, He H, Tang X. Cisplatin-loaded polymeric complex micelles with a modulated drug/copolymer ratio for improved in vivo performance. Acta Biomater 2019; 92:205-218. [PMID: 31071475 DOI: 10.1016/j.actbio.2019.05.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/03/2019] [Accepted: 05/03/2019] [Indexed: 12/28/2022]
Abstract
This study aimed to evaluate the performance of cisplatin-loaded polymeric micelles (CDDP-PMs) with different drug/copolymer ratios of 1:1, 1:3 and 1:6 (w/w) prepared by coordinated complexation and self-assembly method. The mass ratio influenced the self-assembly behaviors and the complex degree, where both single- and double- complexation existed in CDDP-PMs. With the increase of CDDP/copolymer ratio, the particle size and drug loading increased, while encapsulation efficiency decreased. The PEG density of CDDP-PM1-6, CDDP-PM1-3 and CDDP-PM1-1 were 0.20, 0.61 and 0.38 PEG/nm2, respectively. CDDP-PM1-3 and CDDP-PM1-6 had similar sustained release behavior, while CDDP-PM1-1 showed burst release. Pharmacokinetics showed the AUC of CDDP-PM1-6, CDDP-PM1-3 and CDDP-PM1-1 was 27.2, 76.6 and 13.0 fold higher than CDDP solution. Tissue distribution presented the platinum concentration of CDDP-PM1-6, CDDP-PM1-3 and CDDP-PM1-1 was 1.03, 0.80 and 0.48 times of CDDP solution in kidney at 10 min, and 17.61, 28.63 and 16.6 times in tumor at 48 h respectively, indicating CDDP-PMs significantly reduced nephrotoxicity and increased tumor-targeting accumulation. In vivo antitumor test showed that CDDP-PMs exhibited an improved antitumor efficacy and lower systemic toxicity compared with CDDP solution. From CDDP-PM1-1 to CDDP-PM1-6, the toxicity decreased with the increase of copolymer ratio, but the tumor inhibition rate also decreased. CDDP-PM1-3 had relative high therapeutic effect and low toxicity compared with other formulations. CDDP-PM1-3 could improve the antitumor efficacy by increasing the dose within systemic tolerability, but CDDP solution cannot. This work provides an effective strategy by modulating drug/copolymer ratio of CDDP-PMs to balance the antitumor efficacy and toxicity for better payoff. STATEMENT OF SIGNIFICANCE: Cancer chemotherapy always exists a contradiction between antitumor efficacy and toxicity. Higher efficacy against tumor often associated with larger toxicity for normal tissues. This work provides an important strategy by modulating the drug/copolymer ratios to balance the antitumor efficacy and toxicity to obtain better payoff. The cisplatin-loaded polymeric micelles (CDDP-PMs) based on the complexation between CDDP and copolymer with different mass ratios make differences in vitro and in vivo because of the single- or double-complexation degree. Most importantly, we found the balance at CDDP/copolymer ratio of 1:3, which has relative high therapeutic effect and low toxicity compared with other formulations. CDDP-PM1-3 could improve the antitumor efficacy by increasing the dose within systemic tolerability, but CDDP solution cannot.
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Affiliation(s)
- Qiuyue Chen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lifeng Luo
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yingyan Xue
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jian Han
- Department of Life Science, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yi Liu
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yu Zhang
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tian Yin
- Department of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - LiHui Wang
- Department of Life Science, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dongmei Cun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jingxin Gou
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Haibing He
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Xing Tang
- Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang 110016, China
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Yu Y, Yang X, Liu M, Nishikawa M, Tei T, Miyako E. Amphipathic Nanodiamond Supraparticles for Anticancer Drug Loading and Delivery. ACS Appl Mater Interfaces 2019; 11:18978-18987. [PMID: 31090388 DOI: 10.1021/acsami.9b04792] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Nanodiamonds (NDs) have been attracting considerable attention due to their outstanding chemical, physical, and physiological properties. Additional functionalization of NDs can be carried out by the self-assembly technique. This study reports a straightforward chemical route for self-assembled supraparticles (SPs) based on ND (ND-SPs) using alkyl carboxylic acids with different aliphatic alkyl chain lengths by carbodiimide chemistry and sonication. Poly(ethylene glycol) (PEG)-modified ND-SPs are synthesized successfully for effective nanodrug formulations with the hydrophobic anticancer drug paclitaxel (PTX). The properties of these ND-SP nanomedicines are investigated thoroughly by complementary analytical, spectroscopic, and microscopic techniques. This simple methodology permitted the application of PEG-modified ND-SP-encapsulating PTX as a potent drug carrier, achieving greater efficacy than commercial Abraxane. Results revealed that the morphology, particle size, and water dispersibility of the prepared ND-SP nanoclusters affect the drug efficacy. These PEG-modified ND-SP nanoclusters serve as novel nanomedicine for a passive drug delivery system as well as anticancer chemotherapy.
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Affiliation(s)
- Yue Yu
- Department of Materials and Chemistry, Nanomaterials Research Institute (NMRI) , National Institute of Advanced Industrial Science and Technology (AIST) , Central 5, 1-1-1 Higashi , Tsukuba , Ibaraki 305-8565 , Japan
| | - Xi Yang
- Department of Materials and Chemistry, Nanomaterials Research Institute (NMRI) , National Institute of Advanced Industrial Science and Technology (AIST) , Central 5, 1-1-1 Higashi , Tsukuba , Ibaraki 305-8565 , Japan
| | - Ming Liu
- Corporate Research Center, R&D Headquarters, Daicel Corporation , 1239, Shinzaike , Aboshi-ku, Himeji , Hyogo 671-1283 , Japan
| | - Masahiro Nishikawa
- Corporate Research Center, R&D Headquarters, Daicel Corporation , 1239, Shinzaike , Aboshi-ku, Himeji , Hyogo 671-1283 , Japan
| | - Takahiro Tei
- Advanced Materials Planning, R&D Headquarters, Daicel Corporation , 2-19-1 Konan , Minato-ku , Tokyo 108-8230 , Japan
| | - Eijiro Miyako
- Department of Materials and Chemistry, Nanomaterials Research Institute (NMRI) , National Institute of Advanced Industrial Science and Technology (AIST) , Central 5, 1-1-1 Higashi , Tsukuba , Ibaraki 305-8565 , Japan
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Nguyen NT, Milani AH, Jennings J, Adlam DJ, Freemont AJ, Hoyland JA, Saunders BR. Highly compressive and stretchable poly(ethylene glycol) based hydrogels synthesised using pH-responsive nanogels without free-radical chemistry. Nanoscale 2019; 11:7921-7930. [PMID: 30964497 DOI: 10.1039/c9nr01535c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Poly(ethylene glycol) (PEG) based hydrogels are amongst the most studied synthetic hydrogels. However, reports on PEG-based hydrogels with high mechanical strength are limited. Herein, a class of novel, well-defined PEG-based nanocomposite hydrogels with tunable mechanical strength are synthesised via ring-opening reactions of diglycidyl ethers with carboxylate ions. The pH responsive crosslinked polyacid nanogels (NG) in the dispersed phase act as high functionality crosslinkers which covalently bond to the poly(ethylene glycol) diglycidyl ethers (PEGDGE) as the continuous matrix. A series of NG-x-PEG-y-z gels are prepared where x, y and z are concentrations of NGs, PEGDGE and the PEGDGE molecular weight, respectively. The hydrogel compositions and nano-structural homogeneity of the NGs have strong impact on the enhancement of mechanical properties which enables property tuning. Based on this design, a highly compressive PEG-based nanocomposite hydrogel (NG-13-PEG-20-6000) exhibits a compressive stress of 24.2 MPa, compressive fracture strain greater than 98% and a fracture energy density as high as 1.88 MJ m-3. The tensile fracture strain is 230%. This is amongst one of the most compressive PEG-based hydrogels reported to-date. Our chemically crosslinked gels are resilient and show highly recoverable dissipative energy. The cytotoxicity test shows that human nucleus pulposus (NP) cells remained viable after 8 days of culture time. The overall results highlight their potential for applications as replacements for intervertebral discs or articular cartilages.
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Affiliation(s)
- Nam T Nguyen
- School of Materials, University of Manchester, Manchester, M13 9PL, UK.
| | - Amir H Milani
- School of Materials, University of Manchester, Manchester, M13 9PL, UK.
| | - James Jennings
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, UK
| | - Daman J Adlam
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Anthony J Freemont
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Judith A Hoyland
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK and NIHR Manchester Biomedical Research Centre, Manchester University NHS foundation Trust, Manchester Academic Health Science Centre, M13 9WL, UK
| | - Brian R Saunders
- School of Materials, University of Manchester, Manchester, M13 9PL, UK.
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Chen M, Feng X, Xu W, Wang Y, Yang Y, Jiang Z, Ding J. PEGylated Polyurea Bearing Hindered Urea Bond for Drug Delivery. Molecules 2019; 24:E1538. [PMID: 31003544 PMCID: PMC6515048 DOI: 10.3390/molecules24081538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/06/2019] [Accepted: 04/13/2019] [Indexed: 12/03/2022] Open
Abstract
In recent years, polyureas with dynamic hindered urea bonds (HUBs), a class of promising biomedical polymers, have attracted wide attention as a result of their controlled hydrolytic properties. The effect of the chemical structures on the properties of polyureas and their assemblies has rarely been reported. In this study, four kinds of polyureas with different chemical groups have been synthesized, and the polyureas from cyclohexyl diisocyanate and tert-butyl diamine showed the fastest hydrolytic rate. The amphiphilic polyurea composed of hydrophobic cyclohexyl-tert-butyl polyurea and hydrophilic poly(ethylene glycol) (PEG) was synthesized for the controlled delivery of the antitumor drug paclitaxel (PTX). The PTX-loaded PEGylated polyurea micelle more effectively entered into the murine breast cancer 4T1 cells and inhibited the corresponding tumor growth in vitro and in vivo. Therefore, the PEGylated polyurea with adjustable degradation might be a promising polymer matrix for drug delivery.
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Affiliation(s)
- Meishan Chen
- Chemical Engineering Institute, Changchun University of Technology, 2055 Yan'an Street, Changchun 130012, China.
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
| | - Xiangru Feng
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Yanqiao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Yanan Yang
- Chemical Engineering Institute, Changchun University of Technology, 2055 Yan'an Street, Changchun 130012, China.
| | - Zhongyu Jiang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
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Harguindey A, Roy S, Harris AW, Fairbanks BD, Goodwin AP, Bowman CN, Cha JN. Click Nucleic Acid Mediated Loading of Prodrug Activating Enzymes in PEG-PLGA Nanoparticles for Combination Chemotherapy. Biomacromolecules 2019; 20:1683-1690. [PMID: 30884222 PMCID: PMC6697549 DOI: 10.1021/acs.biomac.9b00040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The simultaneous delivery of multiple therapeutics to a single site has shown promise for cancer targeting and treatment. However, because of the inherent differences in charge and size between drugs and biomolecules, new approaches are required for colocalization of unlike components in one delivery vehicle. In this work, we demonstrate that triblock copolymers containing click nucleic acids (CNAs) can be used to simultaneously load a prodrug enzyme (cytosine deaminase, CodA) and a chemotherapy drug (doxorubicin, DOX) in a single polymer nanoparticle. CNAs are synthetic analogs of DNA comprised of a thiolene backbone and nucleotide bases that can hybridize to complementary strands of DNA. In this study, CodA was appended with complementary DNA sequences and fluorescent dyes to allow its encapsulation in PEG-CNA-PLGA nanoparticles. The DNA-modified CodA was found to retain its enzyme activity for converting prodrug 5-fluorocytosine (5-FC) to active 5-fluorouracil (5-FU) using a modified fluorescent assay. The DNA-conjugated CodA was then loaded into the PEG-CNA-PLGA nanoparticles and tested for cell cytotoxicity in the presence of the 5-FC prodrug. To study the effect of coloading DOX and CodA within a single nanoparticle, cell toxicity assays were run to compare dually loaded nanoparticles with nanoparticles loaded only with either DOX or CodA. We show that the highest level of cell death occurred when both DOX and CodA were simultaneously entrapped and delivered to cells in the presence of 5-FC.
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Affiliation(s)
- Albert Harguindey
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Shambojit Roy
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Alexander W. Harris
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Benjamin D. Fairbanks
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Andrew P. Goodwin
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, United States
| | - Christopher N. Bowman
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, United States
| | - Jennifer N. Cha
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, United States
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Xie YQ, Arik H, Wei L, Zheng Y, Suh H, Irvine DJ, Tang L. Redox-responsive interleukin-2 nanogel specifically and safely promotes the proliferation and memory precursor differentiation of tumor-reactive T-cells. Biomater Sci 2019; 7:1345-1357. [PMID: 30698174 PMCID: PMC6435399 DOI: 10.1039/c8bm01556b] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Interleukin-2 (IL-2) is a potent T-cell mitogen that can adjuvant anti-cancer adoptive T-cell transfer (ACT) immunotherapy by promoting T-cell engraftment. However, the clinical applications of IL-2 in combination with ACT are greatly hindered by the severe adverse effects such as vascular leak syndrome (VLS). Here, we developed a synthetic delivery strategy for IL-2 via backpacking redox-responsive IL-2/Fc nanogels (NGs) to the plasma membrane of adoptively transferred T-cells. The NGs prepared by traceless chemical cross-linking of cytokine proteins selectively released the cargos in response to T-cell receptor activation upon antigen recognition in tumors. We found that IL-2/Fc delivered by T-cell surface-bound NGs expanded transferred tumor-reactive T-cells 80-fold more than the free IL-2/Fc of an equivalent dose administered systemically and showed no effects on tumor-infiltrating regulatory T-cell expansion. Intriguingly, IL-2/Fc NG backpacks that facilitated a sustained and slow release of IL-2/Fc also promoted the CD8+ memory precursor differentiation and induced less T-cell exhaustion in vitro compared to free IL-2/Fc. The controlled responsive delivery of IL-2/Fc enabled the safe administration of repeated doses of the stimulant cytokine with no overt toxicity and improved efficacy against melanoma metastases in a mice model.
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Affiliation(s)
- Yu-Qing Xie
- Institute of Bioengineering, École polytechnique fédérale de Lausanne (EPFL), Lausanne, SwitzerlandCH-1015.
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Abstract
Novel polymers containing quaternary functional groups, with and without (control copolymer) PEG side chains, were synthesized and characterized for their ability to lyse the phospholipid membranes of liposome vesicles. Calcein loaded unilamellar vesicles composed of 1,2-dioleoyl- sn-glycero-3-phosphatidylcholine (DOPC) were used to mimic red-blood cell membranes, and a 80:20 (mol/mol) mixture of 1,2-dioleoyl- sn-glycero-3-phosphatidyl ethanolamine (DOPE) and 1,2-dioleoyl- sn- glycero-3-[phospho- rac-(1-glycerol)] (DOPG) was used to mimic the outer cell-membrane of the gram-negative bacteria, E. coli. For DOPE/DOPG = 80:20 (mol/mol) liposome vesicles, the PEG bottle brush copolymer caused leakage of the encapsulated Calcein dye, whereas the control copolymer did not cause any leakage. Both the bottle brush copolymer and the copolymer without PEG side chains had no effect on the zwitterionic DOPC liposome vesicles indicating that the RBC membrane composition is not disrupted by either copolymer architecture. The PEG bottle brush copolymer did not affect the colloidal size of the DOPE/DOPG = 80:20 (mol/mol) liposome vesicles, but on the addition of Triton-X 100, the vesicles disappeared. This provided evidence that the dye leakage was caused by compromising the integrity of the vesicle membrane by the bottle brush polymer architecture. Such partial disruption was preceded by the entropic templating of lipid membranes by the PEG side chains of the bottle brush copolymer. By careful comparison with non-PEGylated cationic polymers, Quart, the importance of PEG side chains in the membrane disrupting activity of the PEGylated cationic polymer, QPEG, was demonstrated. This finding itself is interesting and can contribute to the expansion of the design of membrane disrupting materials.
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Affiliation(s)
- Amit L Garle
- Department of Plastics Engineering and Nanomanufacturing Center , 1 University Drive, University of Massachusetts Lowell , Lowell , Massachusetts 01854 . United States
- Mayo Clinic , Department of Endocrinology , 200 1st Street , Rochester , Minnesota 55902 . United States
| | - Bridgette M Budhlall
- Department of Plastics Engineering and Nanomanufacturing Center , 1 University Drive, University of Massachusetts Lowell , Lowell , Massachusetts 01854 . United States
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Sun W, Zhang X, Jia HR, Zhu YX, Guo Y, Gao G, Li YH, Wu FG. Water-Dispersible Candle Soot-Derived Carbon Nano-Onion Clusters for Imaging-Guided Photothermal Cancer Therapy. Small 2019; 15:e1804575. [PMID: 30761748 DOI: 10.1002/smll.201804575] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/26/2018] [Indexed: 05/28/2023]
Abstract
Herein, water-dispersible carbon nano-onion clusters (CNOCs) with an average hydrodynamic size of ≈90 nm are prepared by simply sonicating candle soot in a mixture of oxidizing acid. The obtained CNOCs have high photothermal conversion efficiency (57.5%), excellent aqueous dispersibility (stable in water for more than a year without precipitation), and benign biocompatibility. After polyethylenimine (PEI) and poly(ethylene glycol) (PEG) modification, the resultant CNOCs-PEI-PEG have a high photothermal conversion efficiency (56.5%), and can realize after-wash photothermal cancer cell ablation due to their ultrahigh cellular uptake (21.3 pg/cell), which is highly beneficial for the selective ablation of cancer cells via light-triggered intracellular heat generation. More interestingly, the cellular uptake of CNOCs-PEI-PEG is so high that the internalized nanoagents can be directly observed under a microscope without fluorescent labeling. Besides, in vivo experiments reveal that CNOCs-PEI-PEG can be used for photothermal/photoacoustic dual-modal imaging-guided photothermal therapy after intravenous administration. Furthermore, CNOCs-PEI-PEG can be efficiently cleared from the mouse body within a week, ensuring their excellent long-term biosafety. To the best of the authors' knowledge, the first example of using candle soot as raw material to prepare water-dispersible onion-like carbon nanomaterials for cancer theranostics is represented herein.
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Affiliation(s)
- Wei Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Xiaodong Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Hao-Ran Jia
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Ya-Xuan Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Yuxin Guo
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Ge Gao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Yan-Hong Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, 210096, P. R. China
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Francolini I, Silvestro I, Di Lisio V, Martinelli A, Piozzi A. Synthesis, Characterization, and Bacterial Fouling-Resistance Properties of Polyethylene Glycol-Grafted Polyurethane Elastomers. Int J Mol Sci 2019; 20:E1001. [PMID: 30823606 PMCID: PMC6412681 DOI: 10.3390/ijms20041001] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/15/2019] [Accepted: 02/20/2019] [Indexed: 12/13/2022] Open
Abstract
Despite advances in material sciences and clinical procedures for surgical hygiene, medical device implantation still exposes patients to the risk of developing local or systemic infections. The development of efficacious antimicrobial/antifouling materials may help with addressing such an issue. In this framework, polyethylene glycol (PEG)-grafted segmented polyurethanes were synthesized, physico-chemically characterized, and evaluated with respect to their bacterial fouling-resistance properties. PEG grafting significantly altered the polymer bulk and surface properties. Specifically, the PEG-grafted polyurethanes possessed a more pronounced hard/soft phase segregated microstructure, which contributed to improving the mechanical resistance of the polymers. The better flexibility of the soft phase in the PEG-functionalized polyurethanes compared to the pristine polyurethane (PU) was presumably also responsible for the higher ability of the polymer to uptake water. Additionally, dynamic contact angle measurements evidenced phenomena of surface reorganization of the PEG-functionalized polyurethanes, presumably involving the exposition of the polar PEG chains towards water. As a consequence, Staphylococcus epidermidis initial adhesion onto the surface of the PEG-functionalized PU was essentially inhibited. That was not true for the pristine PU. Biofilm formation was also strongly reduced.
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Affiliation(s)
- Iolanda Francolini
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy.
| | - Ilaria Silvestro
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy.
| | - Valerio Di Lisio
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy.
| | - Andrea Martinelli
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy.
| | - Antonella Piozzi
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy.
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Brissonnet Y, Araoz R, Sousa R, Percevault L, Brument S, Deniaud D, Servent D, Le Questel JY, Lebreton J, Gouin SG. Di- and heptavalent nicotinic analogues to interfere with α7 nicotinic acetylcholine receptors. Bioorg Med Chem 2019; 27:700-707. [PMID: 30692022 DOI: 10.1016/j.bmc.2019.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/07/2019] [Accepted: 01/13/2019] [Indexed: 12/11/2022]
Abstract
In the field of nicotinic acetylcholine receptors (nAChRs), recognized as important therapeutic targets, much effort has been dedicated to the development of nicotinic analogues to agonize or antagonize distinct homo- and heteropentamers nAChR subtypes, selectively. In this work we developed di- and heptavalent nicotinic derivatives based on ethylene glycol (EG) and cyclodextrin cores, respectively. The compounds showed a concentration dependent inhibition of acetylcholine-induced currents on α7 nAChR expressed by Xenopus oocytes. Interesting features were observed with the divalent nicotinic derivatives, acting as antagonists with varied inhibitory concentrations (IC50) in function of the spacer arm length. The best divalent compounds showed a 16-fold lowered IC50 compared to the monovalent reference (12 vs 195 µM). Docking investigations provide guidelines to rationalize these experimental findings.
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Affiliation(s)
- Yoan Brissonnet
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Romulo Araoz
- CNRS, Neuro-PSI, UMR9197, 91191 Gif-Sur-Yvette, France; CEA/DRF/JOLIOT/SIMOPRO/Toxines Récepteur et Canaux Ioniques, F-91191 Gif-Sur-Yvette, France.
| | - Rui Sousa
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Lucie Percevault
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Sami Brument
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - David Deniaud
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Denis Servent
- CEA/DRF/JOLIOT/SIMOPRO/Toxines Récepteur et Canaux Ioniques, F-91191 Gif-Sur-Yvette, France
| | - Jean-Yves Le Questel
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France.
| | - Jacques Lebreton
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Sébastien G Gouin
- Université de Nantes, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France.
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Zhang E, Xing R, Liu S, Li K, Qin Y, Yu H, Li P. Vascular targeted chitosan-derived nanoparticles as docetaxel carriers for gastric cancer therapy. Int J Biol Macromol 2018; 126:662-672. [PMID: 30599159 DOI: 10.1016/j.ijbiomac.2018.12.262] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/11/2018] [Accepted: 12/28/2018] [Indexed: 11/19/2022]
Abstract
A gastric cancer angiogenesis marker peptide, GX1, is promising to be a desirable ligand for anti-angiogenesis targeted drug of gastric cancer treatment. In this study, GX1 was utilized to fabricate a multifunctional vascular targeting docetaxel (DCT)-loaded nanoparticle with N-deoxycholic acid glycol chitosan (DGC) as the carrier and GX1-PEG-deoxycholic acid (GPD) conjugate as the targeting ligand. The mean size of obtained GX1-DGC-DCT was 150.9 nm with a narrow size distribution and their shape was spherical with smooth surface texture. The in vitro drug release test revealed a sustained release manner and an acid pH could accelerate the release compared with the neutral pH. Furthermore, GX1-DGC-DCT showed stronger cytotoxicity against co-cultured gastric cancer cells and human umbilical vein endothelial cells (co-HUVEC) than DCT within 100 μM. In addition, GX1 efficiently enhanced the cellular uptake of nanoparticles in co-HUVEC cells as confirmed by confocal fluorescence scanning microscopy. Moreover, in vivo delivery of GX1-DGC-DCT was demonstrated to inhibit tumor growth in SGC791 tumor-bearing mice with tumor inhibition rate (TIR) of 67.05% and no weight loss of mice was observed. The anti-tumor effects were further confirmed by H&E and TUNEL analysis. Therefore, this new drug delivery system represents a potential strategy for gastric cancer therapy.
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Affiliation(s)
- Enhui Zhang
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Ronge Xing
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Song Liu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Kecheng Li
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yukun Qin
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Huahua Yu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Pengcheng Li
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
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Zhou Y, Li N, Qiu Z, Lu X, Fang M, Chen X, Ren L, Wang G, Ouyang P. Superior anti-neoplastic activities of triacontanol-PEG conjugate: synthesis, characterization and biological evaluations. Drug Deliv 2018; 25:1546-1559. [PMID: 30022695 PMCID: PMC6060375 DOI: 10.1080/10717544.2018.1477864] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 01/09/2023] Open
Abstract
Triacontanol (TA, C30H62O), abundantly present in plant cuticle waxes and bee waxes, has been found to display promising anti-neoplastic potentials. As a long chain fatty alcohol, TA possesses limited aqueous solubility, which hinders its medicinal application. To overcome its solubility barrier, a polymer prodrug was synthesized through attaching TA to poly ethylene glycol (PEG), using succinic acid as a linker with bifunctional amide and ester bonds. Anti-neoplastic effects of PEG-TA were assessed in LoVo and MCF7 cells, anti-proliferative and apoptosis-inducing activities were subsequently confirmed in mouse xenograft model. Encouragingly, PEG-TA possessed selective anti-cancer ability. It did not exhibit significant cytotoxicity on normal cells. Mechanistic examination revealed inhibition of NF-κB nuclear translocation, suppression on matrix degradation enzyme and down-regulation of angiogenic signaling might contribute to its anti-malignant effects. Pharmacokinetics clearly indicated PEGylated TA (named as mPEG2K-SA-TA) substantially enhanced TA delivery with increased plasma exposure (19,791 vs. 336.25 ng·mL-1·h-1, p < .001), mean residence time (8.46 vs. 2.95 h, p < .001) and elimination half-life (7.78 vs. 2.57 h, p < .001) compared to those of original TA. Moreover, mPEG2K-SA-TA appeared to be safe in preliminary toxicological assessment. PEGylated TA also emerged as a functional carrier to deliver hydrophobic chemotherapeutic agents, since it readily self-assembled to micelles in aqueous solution with a low critical micelle concentration (CMC, 19.1 µg·mL-1). Conclusively, PEG-TA conjugate displayed superior anti-neoplastic activities and low toxicity, as well as facilitated the delivery of other hydrophobic agents, which appeared to be an innovative strategy for cancer therapy.
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Affiliation(s)
- Yimeng Zhou
- China Pharmaceutical University, Nanjing, China
| | - Ning Li
- China Pharmaceutical University, Nanjing, China
- Nanjing Tech University, Nanjing, China
| | - Zhixia Qiu
- China Pharmaceutical University, Nanjing, China
| | - Xiaoyu Lu
- China Pharmaceutical University, Nanjing, China
| | - Min Fang
- China Pharmaceutical University, Nanjing, China
| | - Xijing Chen
- China Pharmaceutical University, Nanjing, China
| | - Lili Ren
- Nanjing Tech University, Nanjing, China
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Yildiz T, Gu R, Zauscher S, Betancourt T. Doxorubicin-loaded protease-activated near-infrared fluorescent polymeric nanoparticles for imaging and therapy of cancer. Int J Nanomedicine 2018; 13:6961-6986. [PMID: 30464453 PMCID: PMC6217908 DOI: 10.2147/ijn.s174068] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Despite significant progress in the field of oncology, cancer remains one of the leading causes of death. Chemotherapy is one of the most common treatment options for cancer patients but is well known to result in off-target toxicity. Theranostic nanomedicines that integrate diagnostic and therapeutic functions within an all-in-one platform can increase tumor selectivity for more effective chemotherapy and aid in diagnosis and monitoring of therapeutic responses. MATERIAL AND METHODS In this work, theranostic nanoparticles were synthesized with commonly used biocompatible and biodegradable polymers and used as cancer contrast and therapeutic agents for optical imaging and treatment of breast cancer. These core-shell nanoparticles were prepared by nanoprecipitation of blends of the biodegradable and biocompatible amphiphilic copolymers poly(lactic-co-glycolic acid)-b-poly-l-lysine and poly(lactic acid)-b-poly(ethylene glycol). Poly-l-lysine in the first copolymer was covalently decorated with near-infrared fluorescent Alexa Fluor 750 molecules. RESULTS The spherical nanoparticles had an average size of 60-80 nm. The chemotherapeutic drug doxorubicin was encapsulated in the core of nanoparticles at a loading of 3% (w:w) and controllably released over a period of 30 days. A 33-fold increase in near-infrared fluorescence, mediated by protease-mediated cleavage of the Alexa Fluor 750-labeled poly-l-lysine on the surface of the nanoparticles, was observed upon interaction with the model protease trypsin. The cytocompatibility of drug-free nanoparticles and growth inhibition of drug-loaded nanoparticles on MDA-MB-231 breast cancer cells were investigated with a luminescence cell-viability assay. Drug-free nanoparticles were found to cause minimal toxicity, even at high concentrations (0.2-2,000 µg/mL), while doxorubicin-loaded nanoparticles significantly reduced cell viability at drug concentrations >10 µM. Finally, the interaction of the nanoparticles with breast cancer cells was studied utilizing fluorescence microscopy, demonstrating the potential of the nanoparticles to act as near-infrared fluorescence optical imaging agents and drug-delivery carriers. CONCLUSION Doxorubicin-loaded, enzymatically activatable nanoparticles of less than 100 nm were prepared successfully by nanoprecipitation of copolymer blends. These nanoparticles were found to be suitable as controlled drug delivery systems and contrast agents for imaging of cancer cells.
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Affiliation(s)
- Tugba Yildiz
- Materials Science, Engineering, and Commercialization Program, Texas State University, San Marcos, TX,
| | - Renpeng Gu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC
| | - Stefan Zauscher
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC
| | - Tania Betancourt
- Materials Science, Engineering, and Commercialization Program, Texas State University, San Marcos, TX,
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX, USA,
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45
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Liu W, Boldt F, Tokura Y, Wang T, Agrawalla BK, Wu Y, Weil T. Encoding function into polypeptide-oligonucleotide precision biopolymers. Chem Commun (Camb) 2018; 54:11797-11800. [PMID: 30280162 PMCID: PMC6192144 DOI: 10.1039/c8cc04725a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/21/2018] [Indexed: 11/21/2022]
Abstract
We report a novel synthesis strategy to prepare precision polymers providing exact chain lengths, molecular weights and monomer sequences that allow post modifications by convenient DNA hybridization. Two grafted single strand DNA (ssDNA) side chains serve as a versatile platform for sequence-specific attachment of chromophores, proteins, cell-targeting peptide, and a Y-shape DNA linker. This approach resembles a LEGO®-type incorporation of functionalities to create functional biopolymers of high structure definition under mild conditions.
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Affiliation(s)
- Weina Liu
- Max-Planck-Institute for Polymer Research
,
Ackermannweg 10
, 55128 Mainz
, Germany
.
- Department of Inorganic Chemistry I
, Ulm University
,
Albert-Einstein-Allee 11
, 89081 Ulm
, Germany
| | - Felix Boldt
- Max-Planck-Institute for Polymer Research
,
Ackermannweg 10
, 55128 Mainz
, Germany
.
- Department of Inorganic Chemistry I
, Ulm University
,
Albert-Einstein-Allee 11
, 89081 Ulm
, Germany
| | - Yu Tokura
- Max-Planck-Institute for Polymer Research
,
Ackermannweg 10
, 55128 Mainz
, Germany
.
- Department of Inorganic Chemistry I
, Ulm University
,
Albert-Einstein-Allee 11
, 89081 Ulm
, Germany
| | - Tao Wang
- Department of Inorganic Chemistry I
, Ulm University
,
Albert-Einstein-Allee 11
, 89081 Ulm
, Germany
- School of Materials Science and Engineering
, Southwest Jiaotong University
,
610031
, Chengdu
, China
| | - Bikram Keshari Agrawalla
- Max-Planck-Institute for Polymer Research
,
Ackermannweg 10
, 55128 Mainz
, Germany
.
- Department of Inorganic Chemistry I
, Ulm University
,
Albert-Einstein-Allee 11
, 89081 Ulm
, Germany
| | - Yuzhou Wu
- Max-Planck-Institute for Polymer Research
,
Ackermannweg 10
, 55128 Mainz
, Germany
.
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica
, School of Chemistry and Chemical Engineering
, Huazhong University of Science and Technology
,
Luoyu Road 1037
, 430074 Hongshan
, Wuhan
, P. R. China
.
| | - Tanja Weil
- Max-Planck-Institute for Polymer Research
,
Ackermannweg 10
, 55128 Mainz
, Germany
.
- Department of Inorganic Chemistry I
, Ulm University
,
Albert-Einstein-Allee 11
, 89081 Ulm
, Germany
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46
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Li C, Huang F, Liu Y, Lv J, Wu G, Liu Y, Ma R, An Y, Shi L. Nitrilotriacetic Acid-Functionalized Glucose-Responsive Complex Micelles for the Efficient Encapsulation and Self-Regulated Release of Insulin. Langmuir 2018; 34:12116-12125. [PMID: 30212220 DOI: 10.1021/acs.langmuir.8b02574] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Insulin plays a significant role in diabetes treatment. Although a huge number of insulin-loaded, glucose-responsive nanocarriers have been developed in past decades, most of them showed a lower loading capacity and efficiency due to the weak interaction between insulin and nanocarriers. In this work, a novel insulin-encapsulated glucose-responsive polymeric complex micelle (CM) is devised, showing (i) enhanced insulin-loading efficiency owing to the zinc ions' chelation by nitrilotriacetic acid (NTA) groups of NTA-functioned glycopolymer and the histidine imidazole of insulin, (ii) the glucose-triggered pulse release of insulin, and (iii) long stability under physiological conditions. This CM was fabricated by the self-assembly of block copolymer PEG- b-P(Asp- co-AspPBA) and glycopolymer P(Asp- co-AspGA- co-AspNTA), resulting in complex micelles with a PEG shell and a cross-linked core composed of phenylboronic acid (PBA)/glucose complexations. Notably, the modified nitrilotriacetic acid (NTA) groups of CM could specifically bind insulin via chelated zinc ions, thus enhancing the loading efficacy of insulin compared to that of nonmodified CM. The dynamic PBA/glucose complexation core of CM dissociates under the trigger of high glucose concentration (>2 g/L) while being quite stable in low glucose concentrations (<2 g/L), as demonstrated by the pulse release of insulin in vitro. Finally, in a murine model of type 1 diabetes, NTA-modified complex micelles loading an insulin (NTA-CM-INS) group exhibited a long hypoglycemic effect which is superior to that of free insulin in the PBS (PBS-INS) group and insulin-loaded complex micelles without an NTA modification (CM-INS) group. This long-term effect benefited from Zn(II) chelation by NTA-modified complex micelles and could avoid hypoglycemia caused by the burst release of insulin. Taken together, this constitutes a highly effective way to encapsulate insulin and release insulin via an on-demand manner for blood glucose control in diabetes.
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Affiliation(s)
| | - Fan Huang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine , Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin 300192 , China
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47
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Meran M, Akkus PD, Kurkcuoglu O, Baysak E, Hizal G, Haciosmanoglu E, Unlu A, Karatepe N, Güner FS. Noncovalent Pyrene-Polyethylene Glycol Coatings of Carbon Nanotubes Achieve in Vitro Biocompatibility. Langmuir 2018; 34:12071-12082. [PMID: 30231197 DOI: 10.1021/acs.langmuir.8b00971] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Single-walled carbon nanotubes (SWNTs) have become increasingly exploited in biological applications, such as imaging and drug delivery. The application of SWNTs in biological settings requires the surface chemistry to remain through the low solubility in aqueous media. In this research, a facile approach for the preparation of a polyethylene glycol (PEG)-coated SWNT-based nanocarrier was reported. We focused on the effect of PEG chain length and SWNT size on the cytotoxicity of PEG-coated SWNTs as a superior drug delivery nanovector. First, all-atom molecular dynamics (MD) simulations were employed to explore the stability and behavior of SWNT/pyrene-PEG (SWNT/Pyr-PEG) structures at a molecular level that is not attainable with experiments. The MD studies revealed that (i) π-π stacking interactions between the pyrene bearing PEG molecules and SWNTs are maintained in bulky situations, regardless of PEG molecular weight or SWNT size; (ii) pyrene molecules diffuse over the SWNT surface without detaching; and (iii) both short and long dynamic Pyr-PEG chains have the capability of effectively coating the SWNT surface. In light of the simulations, noncovalent (π-π stacking) assemblies of SWNT/Pyr-PEG with different molecular weights of PEG ( Mw = 2000, 5000, and 12000) were successfully fabricated and characterized. For longer PEG chains, more effective coating of SWNTs was obtained, resulting in more biocompatible SWNT/Pyr-PEG nanomaterials. The number of SWNTs coated by Pyr-PEG was highly dependent on the length of pyrene bearing PEG polymers. Moreover, the short SWNTs showed a higher amount of PEG coating with respect to the long SWNTs. Cell viability results demonstrated a dose-dependent cytotoxicity of coated SWNTs. Short SWNTs coated with longer PEG chains have low cytotoxicity to be used in in vivo studies.
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Affiliation(s)
- Mehdi Meran
- Department of Chemical Engineering , Istanbul Technical University , 34469 Istanbul , Turkey
| | - Pelin Deniz Akkus
- Department of Chemical Engineering , Istanbul Technical University , 34469 Istanbul , Turkey
| | - Ozge Kurkcuoglu
- Department of Chemical Engineering , Istanbul Technical University , 34469 Istanbul , Turkey
| | - Elif Baysak
- Department of Chemistry , Istanbul Technical University , 34469 Istanbul , Turkey
| | - Gurkan Hizal
- Department of Chemistry , Istanbul Technical University , 34469 Istanbul , Turkey
| | - Ebru Haciosmanoglu
- Department of Physiology, Faculty of Medicine , Istanbul Bilim University , 34394 Istanbul , Turkey
| | - Ayhan Unlu
- Department of Biophysics, Faculty of Medicine , Trakya University , 22030 Edirne , Turkey
| | - Nilgun Karatepe
- Energy Institute, Renewable Energy Division , Istanbul Technical University , 34469 Istanbul , Turkey
| | - F Seniha Güner
- Department of Chemical Engineering , Istanbul Technical University , 34469 Istanbul , Turkey
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48
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Rödel M, Teßmar J, Groll J, Gbureck U. Highly flexible and degradable dual setting systems based on PEG-hydrogels and brushite cement. Acta Biomater 2018; 79:182-201. [PMID: 30149213 DOI: 10.1016/j.actbio.2018.08.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 08/17/2018] [Accepted: 08/21/2018] [Indexed: 01/21/2023]
Abstract
With respect to the composition of natural bone, we established a degradable dual setting system of different poly(ethylene glycol) (PEG)-based hydrogels combined with a brushite cement. The idea was to reinforce the inorganic calcium phosphate mineral phase with an organic, polymeric phase to alter the cement's properties towards ductility and elasticity. Extremely flexible samples were produced via this dual setting approach with a fully reversible elasticity of the samples containing high molecular weight PEG-based hydrogel precursors. Using the decalcifying agent EDTA, the whole inorganic phase was dissolved due to Ca2+-complexation and dimensionally stable hydrogels were obtained, indicating a homogenous polymeric phase within the composites. This was also confirmed by SEM-analysis, where no discontinuities or agglomerations of the phase were observed. Additional XRD-measurements proved a significant influence of the coherent polymeric matrix on the conversion from β-TCP/MCPA to brushite with a decrease in signal intensity. The results confirmed a parallelly running process of setting reaction and gelation without an inhibition of the conversion to brushite and the formation of interpenetrating networks of hydrogel and cement. The strengths of this newly developed dual setting system are based on the material degradability as well as flexibility, which can be a promising tool for bone regeneration applications in non-load bearing craniomaxillofacial defects. STATEMENT OF SIGNIFICANCE Brushite based calcium phosphate cements (CPCs) are known as bone replacement materials, which degrade in vivo and are replaced by native bone. However, the pure inorganic material shows a brittle fracture behavior. Here, the addition of a polymeric phase can influence the mechanical properties to create more ductile and flexible materials. This polymeric phase should ideally form during cement setting by a polymerization reaction to achieve high polymer loads without altering cement viscosity and it should be degradable in vivo similar to the cement itself. Therefore, we developed a dual setting system based on simultaneous cement setting of brushite and lactide modified poly(ethylene glycol) dimethacrylate (PEG-PLLA-DMA)-based hydrogel. It was evident that the gels form a continuous phase within the cement after radical polymerization with a strong reduction of cement brittleness.
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Affiliation(s)
- Michaela Rödel
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI), Julius Maximilians University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Jörg Teßmar
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI), Julius Maximilians University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI), Julius Maximilians University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI), Julius Maximilians University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
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49
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Catauro M, Tranquillo E, Salzillo A, Capasso L, Illiano M, Sapio L, Naviglio S. Silica/Polyethylene Glycol Hybrid Materials Prepared by a Sol-Gel Method and Containing Chlorogenic Acid. Molecules 2018; 23:E2447. [PMID: 30257424 PMCID: PMC6222366 DOI: 10.3390/molecules23102447] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/19/2018] [Accepted: 09/21/2018] [Indexed: 12/13/2022] Open
Abstract
Chlorogenic acid (CGA) is a very common dietary polyphenolic compound. CGA is becoming very attractive due to its potential use as preventive and therapeutic agent in many diseases, including cancer. Inorganic/organic hybrid materials are gaining considerable attention in the biomedical field. The sol-gel process provides a useful way to obtain functional organic/inorganic hybrids. The aim of this study was to synthesize silica/polyethylene glycol (PEG) hybrids with different percentages of CGA by sol-gel technique and to investigate their impact on the cancer cell proliferation. Synthesized materials have been chemically characterized through the FTIR spectroscopy and their bioactivity evaluated looking by SEM at their ability to produce a hydroxyapatite layer on their surface upon incubation with simulated body fluid (SBF). Finally, their effects on cell proliferation were studied in cell lines by direct cell number counting, MTT, flow cytometry-based cell-cycle and cell death assays, and immunoblotting experiments. Notably, we found that SiO₂/PEG/CGA hybrids exhibit clear antiproliferative effects in different tumor, including breast cancer and osteosarcoma, cell lines in a CGA dependent manner, but not in normal cells. Overall, our results increase the evidence of CGA as a possible anticancer agent and illustrate the potential for clinical applications of sol-gel synthesized SiO₂/PEG/CGA materials.
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Affiliation(s)
- Michelina Catauro
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, I-81031 Aversa, Italy.
| | - Elisabetta Tranquillo
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, I-81031 Aversa, Italy.
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli" Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Alessia Salzillo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli" Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Lucia Capasso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli" Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Michela Illiano
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli" Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Luigi Sapio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli" Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Silvio Naviglio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli" Via L. De Crecchio 7, 80138 Naples, Italy.
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50
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Li L, Zhou F, Li Y, Chen X, Zhang Z, Zhou N, Zhu X. Cooperation of Amphiphilicity and Smectic Order in Regulating the Self-Assembly of Cholesterol-Functionalized Brush-Like Block Copolymers. Langmuir 2018; 34:11034-11041. [PMID: 30133294 DOI: 10.1021/acs.langmuir.8b01946] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanoparticle morphology significantly affects the application of nanometer-scale materials. Understanding nanoparticle formation mechanisms and directing morphological control in nanoparticle self-assembly processes have received wide attention. Herein, a series of brush-like amphiphilic liquid crystalline block copolymers, PChEMA m- b-POEGMA n, containing cholesteryl mesogens with different hydrophobic/hydrophilic block ratios were designed and synthesized. The self-assembly behaviors of the resulting PChEMA m- b-POEGMA n block copolymers in different solvents (tetrahydrofuran/H2O, 1,4-dioxane/H2O, and N, N-dimethylformamide) were investigated in detail. Desirable micellar aggregates with well-organized architectures, including short cylindrical micelles, nanofibers, fringed platelets, and ellipsoidal vesicles with smectic micellar cores, were observed in 1,4-dioxane/H2O with an increasing hydrophobic block ratio. Although both amphiphilicity and smectic order governed the self-assembly, these two factors were differently balanced in the different solvents. This unique supramolecular system provides a new strategy for the design of advanced functional nanomaterials with tunable morphologies.
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Affiliation(s)
- Lishan Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Feng Zhou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Yiwen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Xiaofang Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Nianchen Zhou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Xiulin Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
- Global Institute of Software Technology , No. 5, Qingshan Road , Suzhou National Hi-Tech District, Suzhou 215163 , China
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