1
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Shaikh AY, Björkling F, Zabicka D, Tomczak M, Urbas M, Domraceva I, Kreicberga A, Franzyk H. Structure-activity study of oncocin: On-resin guanidinylation and incorporation of homoarginine, 4-hydroxyproline or 4,4-difluoroproline residues. Bioorg Chem 2023; 141:106876. [PMID: 37797458 DOI: 10.1016/j.bioorg.2023.106876] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023]
Abstract
Antimicrobial peptides (AMPs) often display guanidinium functionalities, and hence robust synthetic procedures are needed to facilitate access to analogues with unnatural homologues of arginine (Arg = R). Initially, a resin-bound Arg/Pro-rich fluoren-9-yl-methyloxycarbonyl-protected fragment (Fmoc-RPRPPR) of the AMP oncocin (i.e., VDKPPYLPRPRPPRRIYNR-NH2) was employed in a comparative on-resin assessment of commercial guanidinylation reagents head-to-head with the recently studied bis-Boc-protected triazole-based reagent, 1H-triazole-1-[N,N'-bis(tert-butoxycarbonyl)]-carboxamidine, which was synthesized by a chromatography-free procedure. This reagent was found to enable quantitative conversion in solid-phase peptide synthesis (SPPS) of peptides displaying homoarginine (Har) residues and/or an N-terminal guanidinium group. SPPS was used to obtain analogues of the 18-mer oncocin with single as well as multiple Arg → Har modifications. In addition, the effect of replacement of proline (Pro) residues in oncocin was explored by incorporating single or multiple trans-4-hydroxy-l-proline (Hyp) or 4,4-difluoro-l-proline (Dfp) residues, which both affected hydrophobicity. The resulting peptide library was tested against both Gram-negative and Gram-positive bacteria. Analysis of the minimal inhibitory concentrations (MICs) showed that analogues, displaying modifications at positions 4, 5 and 12 (originally Pro residues), had retained or slightly improved antimicrobial activity. Next, an oncocin analogue with two stabilizing l-Arg → d-Arg replacements in the C-terminal part was further modified by triple-replacement of Pro by either Dfp or Hyp in positions 4, 5, and 12. The resulting analogue displaying three Pro → Dfp modifications proved to possess the best activity profile: MICs of 1-2 µg/mL against E. coli and Klebsiella pneumoniae, less than 1% hemolysis at 800 µg/mL, and an IC50 above 1280 µg/mL in HepG2 cells. Thus, incorporation of bis-fluorinated Pro residues appears to constitute a novel tool in structure-activity studies aimed at optimization of Pro-rich AMPs.
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Affiliation(s)
- Ashif Y Shaikh
- Center for Peptide-Based Antibiotics, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Denmark; Department of Chemistry, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Fredrik Björkling
- Center for Peptide-Based Antibiotics, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Denmark
| | - Dorota Zabicka
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, ul. Chełmska 30/34, 00-725 Warsaw, Poland
| | - Magdalena Tomczak
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, ul. Chełmska 30/34, 00-725 Warsaw, Poland
| | - Malgorzata Urbas
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, ul. Chełmska 30/34, 00-725 Warsaw, Poland
| | - Ilona Domraceva
- Latvian Institute of Organic Synthesis, Aizkraukles 21, 1006 Riga, Latvia
| | - Agrita Kreicberga
- Latvian Institute of Organic Synthesis, Aizkraukles 21, 1006 Riga, Latvia
| | - Henrik Franzyk
- Center for Peptide-Based Antibiotics, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100, Denmark.
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2
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Liu C, Wang X, Zhu H, Wang K, Yu M, Zhang Y, Su M, Rong X, Sheng W, Zhu B. Multifunctional Theranostic Probe Based on the Pim-1 Kinase Inhibitor with the Function of Tracking pH Fluctuations during Treatment. Anal Chem 2023; 95:11732-11740. [PMID: 37490364 DOI: 10.1021/acs.analchem.3c01818] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Currently, kinase inhibitors have been applied in the diagnosis or treatment of cancer with their unique advantages. It is of great significance to develop some comprehensive theranostic reagents based on kinase inhibitors to improve the performance of reagents for biomedical applications. Besides, tracking changes in the intracellular environment (e.g., pH) during cancer development and drug delivery is also critical for cancer research and treatment. Therefore, it is an urgent desire to design some novel multifunctional reagents based on kinase inhibitor strategies that can trace changes in the microenvironment of cancer cells. In this paper, a multifunctional theranostic reagent based on Pim-1 kinase inhibitor 5-bromobenzofuran-2-carboxylic acid is proposed. The theranostic probe binds to tumor-specific Pim-1 kinase, releases strong fluorescence, and produces cytotoxicity, thus achieving cell screening and killing effects. Furthermore, the probe can specifically target lysosomes and sensitively respond to pH. It can be used to track the pH changes in the intracellular environment under conditions of autophagy and external stimulation, as a visual tool to monitor pH fluctuations during cancer treatment. In conclusion, this simple but multifunctional theranostic reagent proposed in this work is expected to provide a promising method for cancer diagnosis and therapy.
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Affiliation(s)
- Caiyun Liu
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
| | - Xin Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
| | - Hanchuang Zhu
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
| | - Kun Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
| | - Miaohui Yu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China
| | - Yan Zhang
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
| | - Meijun Su
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
| | - Xiaodi Rong
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
| | - Wenlong Sheng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China
| | - Baocun Zhu
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong 250022, China
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3
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Tan X, Wang C, Zhou H, Zhang S, Liu X, Yang X, Liu W. Bioactive fatty acid analog-derived hybrid nanoparticles confer antibody-independent chemo-immunotherapy against carcinoma. J Nanobiotechnology 2023; 21:183. [PMID: 37291573 DOI: 10.1186/s12951-023-01950-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/01/2023] [Indexed: 06/10/2023] Open
Abstract
Typical chemo-immunotherapy against malignant carcinoma, is characterized by the combined application of chemotherapeutic agents and monoclonal antibodies for immune checkpoint blockade (ICB). Temporary ICB with antibodies would not depress tumor intrinsic PD-L1 expression and potential PD-L1 adaptive upregulation during chemotherapy, thus exerting limited immunotherapy efficacy. Herein, we developed novel polymer-lipid hybrid nanoparticles (2-BP/CPT-PLNs) for inducing PD-L1 degradation by inhibiting palmitoylation with bioactive palmitic acid analog 2-bromopalmitate (2-BP) to replace PD-L1 antibody (αPD-L1) for ICB therapy, thus achieving highly efficient antitumor immune via immunogenic cell death (ICD) induced by potentiated chemotherapy. GSH-responsive and biodegradable polymer-prodrug CPT-ss-PAEEP10 assisted as a cationic helper polymer could help to stabilize 2-BP/CPT-PLNs co-assembled with 2-BP, and facilitate the tumor site-specific delivery and intracellular release of water-insoluble camptothecin (CPT) in vivo. 2-BP/CPT-PLNs would reinforce cytotoxic CD8+ T cell-mediated antitumor immune response via promoting intratumoral lymphocytes cells infiltration and activation. 2-BP/CPT-PLNs significantly prevented melanoma progression and prolonged life survival of mice beyond the conventional combination of irinotecan hydrochloride (CPT-11) and αPD-L1. Our work first provided valuable instructions for developing bioactive lipid analogs-derived nanoparticles via lipid metabolism intervention for oncotherapy.
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Affiliation(s)
- Xi Tan
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China
| | - Chenhui Wang
- The Key Laboratory for Human Disease Gene Study of Sichuan Province, Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 611731, P.R. China
| | - Hong Zhou
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China
| | - Shuting Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China
| | - Xuhan Liu
- Department of Emergency Medicine, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen, 518060, P.R. China
| | - Xiangliang Yang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China
- National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China
| | - Wei Liu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
- National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
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4
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Porello I, Cellesi F. Intracellular delivery of therapeutic proteins. New advancements and future directions. Front Bioeng Biotechnol 2023; 11:1211798. [PMID: 37304137 PMCID: PMC10247999 DOI: 10.3389/fbioe.2023.1211798] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 05/16/2023] [Indexed: 06/13/2023] Open
Abstract
Achieving the full potential of therapeutic proteins to access and target intracellular receptors will have enormous benefits in advancing human health and fighting disease. Existing strategies for intracellular protein delivery, such as chemical modification and nanocarrier-based protein delivery approaches, have shown promise but with limited efficiency and safety concerns. The development of more effective and versatile delivery tools is crucial for the safe and effective use of protein drugs. Nanosystems that can trigger endocytosis and endosomal disruption, or directly deliver proteins into the cytosol, are essential for successful therapeutic effects. This article aims to provide a brief overview of the current methods for intracellular protein delivery to mammalian cells, highlighting current challenges, new developments, and future research opportunities.
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5
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Donohoe C, Schaberle FA, Rodrigues FMS, Gonçalves NPF, Kingsbury CJ, Pereira MM, Senge MO, Gomes-da-Silva LC, Arnaut LG. Unraveling the Pivotal Role of Atropisomerism for Cellular Internalization. J Am Chem Soc 2022; 144:15252-15265. [PMID: 35960892 PMCID: PMC9446767 DOI: 10.1021/jacs.2c05844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The intrinsic challenge of large molecules to cross the cell membrane and reach intracellular targets is a major obstacle for the development of new medicines. We report how rotation along a single C-C bond, between atropisomers of a drug in clinical trials, improves cell uptake and therapeutic efficacy. The atropisomers of redaporfin (a fluorinated sulfonamide bacteriochlorin photosensitizer of 1135 Da) are separable and display orders of magnitude differences in photodynamic efficacy that are directly related to their differential cellular uptake. We show that redaporfin atropisomer uptake is passive and only marginally affected by ATP depletion, plasma proteins, or formulation in micelles. The α4 atropisomer, where meso-phenyl sulfonamide substituents are on the same side of the tetrapyrrole macrocycle, exhibits the highest cellular uptake and phototoxicity. This is the most amphipathic atropisomer with a conformation that optimizes hydrogen bonding (H-bonding) with polar head groups of membrane phospholipids. Consequently, α4 binds to the phospholipids on the surface of the membrane, flips into the membrane to adopt the orientation of a surfactant, and eventually diffuses to the interior of the cell (bind-flip mechanism). We observed increased α4 internalization by cells of the tumor microenvironment in vivo and correlated this to the response of photodynamic therapy when tumor illumination was performed 24 h after α4 administration. These results show that properly orientated aryl sulfonamide groups can be incorporated into drug design as efficient cell-penetrating motifs in vivo and reveal the unexpected biological consequences of atropisomerism.
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Affiliation(s)
- Claire Donohoe
- CQC, Coimbra Chemistry Center, University of Coimbra, Rua Larga, Coimbra 3004-535, Portugal.,Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, St. James's Hospital, Trinity College Dublin, The University of Dublin, Dublin 8, Ireland
| | - Fábio A Schaberle
- CQC, Coimbra Chemistry Center, University of Coimbra, Rua Larga, Coimbra 3004-535, Portugal
| | - Fábio M S Rodrigues
- CQC, Coimbra Chemistry Center, University of Coimbra, Rua Larga, Coimbra 3004-535, Portugal
| | - Nuno P F Gonçalves
- Luzitin SA, Ed. Bluepharma, S. Martinho do Bispo, Coimbra 3045-016, Portugal
| | - Christopher J Kingsbury
- School of Chemistry, Chair of Organic Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Mariette M Pereira
- CQC, Coimbra Chemistry Center, University of Coimbra, Rua Larga, Coimbra 3004-535, Portugal
| | - Mathias O Senge
- Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, St. James's Hospital, Trinity College Dublin, The University of Dublin, Dublin 8, Ireland.,Institute for Advanced Study (TUM-IAS), Technical University of Munich, Lichtenbergstrasse 2a, Garching 85748, Germany
| | - Lígia C Gomes-da-Silva
- CQC, Coimbra Chemistry Center, University of Coimbra, Rua Larga, Coimbra 3004-535, Portugal
| | - Luis G Arnaut
- CQC, Coimbra Chemistry Center, University of Coimbra, Rua Larga, Coimbra 3004-535, Portugal
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6
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Davis HC, Pan X, Kirsch ZJ, Vachet RW, Tew GN. Covalent Labeling-Mass Spectrometry Provides a Molecular Understanding of Noncovalent Polymer-Protein Complexation. ACS Biomater Sci Eng 2022; 8:2489-2499. [PMID: 35608244 PMCID: PMC9205173 DOI: 10.1021/acsbiomaterials.2c00125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The delivery of functional proteins to the intracellular space offers tremendous advantages for the development of new therapeutics but is limited by the passage of these large polar biomacromolecules through the cell membrane. Noncovalent polymer-protein binding that is driven by strong carrier-cargo interactions, including electrostatics and hydrophobicity, has previously been explored in the context of delivery of functional proteins. Appropriately designed polymer-based carriers can take advantage of the heterogeneous surface of protein cargoes, where multiple types of physical binding interactions with polymers can occur. Traditional methods of assessing polymer-protein binding, including dynamic light scattering, circular dichroism spectroscopy, and fluorescence-based assays, are useful in the study of new polymer-based carriers but face a number of limitations. We implement for the first time the method of covalent labeling-mass spectrometry (CL-MS) to probe intermolecular surface interactions within noncovalent polymer-protein complexes. We demonstrate the utility of CL-MS for establishing binding of an amphiphilic block copolymer to negatively charged and hydrophobic surface patches of a model protein, superfolder green fluorescent protein (sfGFP), using diethylpyrocarbonate as a pseudo-specific labeling reagent. In addition, we utilize this method to explore differences at the intermolecular surface as the ratio of polymer to protein increases, particularly in the context of defining effective protein delivery regimes. By promoting an understanding of the intermolecular interactions in polymer-protein binding and identifying sites where polymers bind to protein surfaces, noncovalent polymer carriers can be more effectively designed for protein delivery applications.
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Affiliation(s)
- Hazel C Davis
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Xiao Pan
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Zachary J Kirsch
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Richard W Vachet
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Gregory N Tew
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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7
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Zhang Y, Liu C, Sun W, Yu Z, Su M, Rong X, Wang X, Wang K, Li X, Zhu H, Yu M, Sheng W, Zhu B. Concise Biothiol-Activatable HPQ-NBD Conjugate as a Targeted Theranostic Probe for Tumor Cells. Anal Chem 2022; 94:7140-7147. [PMID: 35522825 DOI: 10.1021/acs.analchem.2c01459] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cancer, as a malignant tumor, seriously endangers human health. The study of cancer diagnosis and therapy has great practical significance. The development of theranostic agents has become a very important research topic. Nevertheless, some existing agents still have imperfections, such as complex structures and difficult syntheses. Therefore, it is urgent for researchers to develop simple novel theranostic agents. In this study, the precipitated fluorophore HAPQ was used as a simple drug molecule for the first time and combined with NBD-Cl to construct a simple and efficient theranostic probe (HAPQ-NBD). The theranostic probe can distinguish between tumor cells and normal cells based on the higher levels of biothiol in tumor cells. In addition, the probe can use biothiol as a control switch to release higher levels of precipitated fluorophore HAPQ in tumor cells, leading to selective high toxicity to tumor cells, thus achieving the goal of selectively killing tumor cells. The construction of probe HAPQ-NBD provides a practical tool for the diagnosis and therapy of cancer. It is expected that the development and utilization of precipitated fluorophore will provide a new method and strategy for cancer diagnosis and therapy.
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Affiliation(s)
- Yan Zhang
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Caiyun Liu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Weimin Sun
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Ziwen Yu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Meijun Su
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Xiaodi Rong
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Xin Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Kun Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Xiwei Li
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Hanchuang Zhu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
| | - Miaohui Yu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China
| | - Wenlong Sheng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China
| | - Baocun Zhu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China
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8
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Huang S, Huang X, Mao T, Yan H. A green and facile approach for synthesis of guanidine-rich hyperbranched polymers and the preliminary studies on their bioactivities. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Gupta S, Qasim M, Gupta A, Kundu J, Sinha S. Structural Modifications to the Internal Oligoguanidinium Transporter Uncover Two Potent Analogues that Effectively Deliver the Proapoptotic Peptide in Multiple Cancer Cell Lines. Bioconjug Chem 2022; 33:121-133. [PMID: 34915704 DOI: 10.1021/acs.bioconjchem.1c00456] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Efficient cytosolic delivery with serum-independent kinetics and low toxicity are the ultimate challenges towards the transformation of an antisense oligonucleotide or a therapeutic peptide to a suitable drug candidate for clinical trials. Most delivery vehicles falter on at least one of the above requirements, which hinders their potential in in vivo models as well. Our previous reports on internal guanidinium transporters (IGTs) have established the diversity of this particular class of molecule with the efficient delivery of antisense phosphorodiamidate morpholino oligonucleotides. In this paper, we report twenty IGTs with different types of evidence-backed structural modifications with different types of head-group linkage R, which significantly change the transfection, toxicity, and endosomal escape. Based on these three criteria, the analogues were sorted systematically to find the more promising IGTs, which were then further examined by LysoTracker studies. Finally, two analogues, with cholesteryl linkage (R = Chol) and pentafluorobenzyl linkage (R = PF Cbz), were selected for a proapoptotic peptide delivery as the final validation using a long-chain di-acid linker conjugation. Detailed mechanistic studies also revealed that the primary pathway of endocytosis is macropinocytosis, and that other pathways play different roles depending on the head group of the IGT. Since endocytosis pathways for entry depend on the nature of the cell line, we have shown the mechanistic variations in two cell lines for validation.
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Affiliation(s)
- Shalini Gupta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Md Qasim
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Abhishek Gupta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Jayanta Kundu
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Surajit Sinha
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
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10
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Fu L, Hua X, Jiang X, Shi J. Multistage Systemic and Cytosolic Protein Delivery for Effective Cancer Treatment. NANO LETTERS 2022; 22:111-118. [PMID: 34962818 DOI: 10.1021/acs.nanolett.1c03293] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Current clinical applications of protein therapy are largely limited to systemically accessible targets in vascular or extracellular areas. Major obstacles to the widespread application of protein therapeutics in cancer treatment include low membrane permeability and endosomal entrapment. Herein, we report a multistage nanoparticle (NP) strategy for systemic and cytosolic protein delivery to tumor cells, by encapsulating a protein conjugate, tetra-guanidinium (TG)-modified saporin, into tumor microenvironment (TME) pH-responsive polymeric NPs. Upon reaching the tumor site after systemic circulation, the polymeric NPs respond rapidly to the acidic tumor microenvironment and release the TG-saporin conjugates, which penetrate the tumor tissue and enter into tumor cells via TG-mediated cytosolic transportation. The TG-saproin NPs showed potent inhibition of lung cancer cell growth in vitro and in vivo. We expect that this multistage NP delivery strategy with long blood circulation, deep tumor penetration, and efficient cytosolic transport may be applicable to various therapeutic proteins for effective cancer treatment.
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Affiliation(s)
- Liyi Fu
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Xianwu Hua
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Xingya Jiang
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Jinjun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
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11
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Morodo R, Riva R, van den Akker NMS, Molin DG, Jerome C, Monbaliu JCM. Accelerating the End-to-end Production of Cyclic Phosphate Monomers with Modular Flow Chemistry. Chem Sci 2022; 13:10699-10706. [DOI: 10.1039/d2sc02891c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/29/2022] [Indexed: 11/21/2022] Open
Abstract
Biocompatibility, tunable degradability, broad functionalities of polyphosphoesters and their potential for biomedical applications stimulated a renewed interest from the Chemistry, Medicinal Chemistry and Polymer Sciences. Commercial applications of polyphosphoesters as...
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12
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Theoretical Study of the Hydrogen-Bond Interactions of CO 2 in the Organic Absorbent 1,3-Diphenylguanidine. CHINESE J CHEM PHYS 2022. [DOI: 10.1063/1674-0068/cjcp2201017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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13
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Davis HC, Posey ND, Tew GN. Protein Binding and Release by Polymeric Cell-Penetrating Peptide Mimics. Biomacromolecules 2021; 23:57-66. [PMID: 34879198 DOI: 10.1021/acs.biomac.1c00929] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
There is significant potential in exploiting antibody specificity to develop new therapeutic treatments. However, intracellular protein delivery is a paramount challenge because of the difficulty in transporting large, polar molecules across cell membranes. Cell-penetrating peptide mimics (CPPMs) are synthetic polymers that are versatile materials for intracellular delivery of biological molecules, including nucleic acids and proteins, with superior performance compared to their natural counterparts and commercially available peptide-based reagents. Studies have demonstrated that noncovalent complexation with these synthetic carriers is necessary for the delivery of proteins, but the fundamental interactions dominating CPPM-protein complexation are not well understood. Beyond these interactions, the mechanism of release for many noncovalent carriers is not well established. Herein, interactions expected to be critical in CPPM-protein binding and unbinding were explored, including hydrogen bonding, electrostatics, and hydrophobic interactions. Despite the guanidinium-rich functionality of these polymeric carriers, hydrogen bonding was shown not to be a dominant interaction in CPPM-protein binding. Fluorescence quenching assays were used to decouple the effect of electrostatic and hydrophobic interactions between amphiphilic CPPMs and proteins. Furthermore, by conducting competition assays with other proteins, unbinding of protein cargoes from CPPM-protein complexes was demonstrated and provided insight into mechanisms of protein release. This work offers understanding toward the role of carrier and cargo binding and unbinding in intracellular outcomes. In turn, an improved fundamental understanding of noncovalent polymer-protein complexation will enable more effective methods for intracellular protein delivery.
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Affiliation(s)
- Hazel C Davis
- Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Nicholas D Posey
- Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Gregory N Tew
- Department of Polymer Science & Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States.,Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, United States.,Department of Veterinary & Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
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14
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Zhang R, Nie T, Fang Y, Huang H, Wu J. Poly(disulfide)s: From Synthesis to Drug Delivery. Biomacromolecules 2021; 23:1-19. [PMID: 34874705 DOI: 10.1021/acs.biomac.1c01210] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bioresponsive polymers have been widely used in drug delivery because of their degradability. For example, poly(disulfide)s with repeating disulfide bonds in the main chain have attracted considerable research attention. The characteristics of the disulfide bonds, including their dynamic and reversible properties and their responsiveness to stimuli such as reductants, light, heat, and mechanical force, make them ideal platforms for on-demand drug delivery. This review introduces the synthesis methods and applications of poly(disulfide)s. Furthermore, the synthesis methods of poly(disulfide)s are classified on the basis of the monomers used: oxidative step-growth polymerization with dithiols, ring-opening polymerization with cyclic disulfides, and polymerization with linear disulfides. In addition, recent advances in poly(disulfide)s for the delivery of small-molecule or biomacromolecular drugs are discussed. Quantum-dot-loaded poly(disulfide) delivery systems for imaging are also included. This review provides an overview of the various design strategies employed in the construction of poly(disulfide) platforms to inspire new applications in the field of drug delivery.
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Affiliation(s)
- Ruhe Zhang
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
| | - Tianqi Nie
- The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Yifen Fang
- Department of Cardiology, The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510180, China
| | - Hai Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Jun Wu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
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15
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Kim HS, Lee Y, Shin MH, Lim HS. Cell-penetrating, amphipathic cyclic peptoids as molecular transporters for cargo delivery. Chem Commun (Camb) 2021; 57:6800-6803. [PMID: 34236370 DOI: 10.1039/d1cc02848k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we describe the design, synthesis, and biological evaluation of cell-penetrating, amphipathic cyclic peptoids as a novel class of molecular transporters. We demonstrated that macrocyclization, along with the introduction of hydrophobic residues, greatly enhanced cellular uptake of polyguanidine linear peptoids. The amphipathic cyclic peptoids showed an order of magnitude more efficient intracellular delivery ability, compared to a commonly used polyarginine cell-penetrating peptide, representing one of the best molecular transporters reported to date. Given the excellent cell-permeability, proteolytic stability, and ease of synthesis, the amphipathic cyclic peptoids would be broadly applicable to a wide range of clinical and biological applications.
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Affiliation(s)
- Hyun-Soo Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea.
| | - Yeongju Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea.
| | - Min Hyeon Shin
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea.
| | - Hyun-Suk Lim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea.
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16
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Sim XM, Chen C, Goto A. Polymer Coupling via Hetero-Disulfide Exchange and Its Applications to Rewritable Polymer Brushes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24183-24193. [PMID: 33982564 DOI: 10.1021/acsami.1c07195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
An iodide-terminated polymer (Polymer-I) is converted to a thiol-terminated polymer (Polymer-SH) using HSCH2CH2SH in a remarkably short time (10 min). Polymer-SH is further converted to a pyridyl disulfide-terminated polymer (Polymer-SS-Py). The hetero-coupling of Polymer-SH and Polymer-SS-Py is successfully achieved to quantitatively generate a polymer disulfide (Polymer-SS-Polymer). Exploiting this efficient hetero-coupling technique, Polymer-SH is attached (grafted) on a Py-SS-immobilized surface to generate a polymer brush via a disulfide (-SS-) linkage (writing process). The -SS- linkage is cleaved by the treatment with dithiothreitol (DTT) to detach the polymer from the surface (erasing process). Subsequently, another Polymer-SH is attached on the surface to generate another polymer brush (rewriting process). Thus, a writable, erasable, and rewritable polymer brush surface is achieved. Hydrophilic, hydrophobic, and super-hydrophobic polymers (Polymer-SH) are attached on the surface, tailoring the surface wettability in the writing-erasing-rewriting cycles. Polymer-SH is also attached on a chain-end Py-SS-functionalized polymer brush surface, generating a rewritable block copolymer brush surface. A patterned block copolymer brush surface is also obtained using photo-irradiation and a photo-mask in the erasing process. The metal-free synthetic procedure, accessibility to patterned brushes, and switchable surface properties via the writing-erasing-rewriting process are attractive features of the present approach.
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Affiliation(s)
- Xuan Ming Sim
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Chen Chen
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Atsushi Goto
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
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17
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Kumar R, Santa Chalarca CF, Bockman MR, Bruggen CV, Grimme CJ, Dalal RJ, Hanson MG, Hexum JK, Reineke TM. Polymeric Delivery of Therapeutic Nucleic Acids. Chem Rev 2021; 121:11527-11652. [PMID: 33939409 DOI: 10.1021/acs.chemrev.0c00997] [Citation(s) in RCA: 149] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The advent of genome editing has transformed the therapeutic landscape for several debilitating diseases, and the clinical outlook for gene therapeutics has never been more promising. The therapeutic potential of nucleic acids has been limited by a reliance on engineered viral vectors for delivery. Chemically defined polymers can remediate technological, regulatory, and clinical challenges associated with viral modes of gene delivery. Because of their scalability, versatility, and exquisite tunability, polymers are ideal biomaterial platforms for delivering nucleic acid payloads efficiently while minimizing immune response and cellular toxicity. While polymeric gene delivery has progressed significantly in the past four decades, clinical translation of polymeric vehicles faces several formidable challenges. The aim of our Account is to illustrate diverse concepts in designing polymeric vectors towards meeting therapeutic goals of in vivo and ex vivo gene therapy. Here, we highlight several classes of polymers employed in gene delivery and summarize the recent work on understanding the contributions of chemical and architectural design parameters. We touch upon characterization methods used to visualize and understand events transpiring at the interfaces between polymer, nucleic acids, and the physiological environment. We conclude that interdisciplinary approaches and methodologies motivated by fundamental questions are key to designing high-performing polymeric vehicles for gene therapy.
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Affiliation(s)
- Ramya Kumar
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | - Matthew R Bockman
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Craig Van Bruggen
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christian J Grimme
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Rishad J Dalal
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mckenna G Hanson
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Joseph K Hexum
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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18
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Jo H, Kitao T, Kimura A, Itoh Y, Aida T, Okuro K. Bio-adhesive Nanoporous Module: Toward Autonomous Gating. Angew Chem Int Ed Engl 2021; 60:8932-8937. [PMID: 33528083 DOI: 10.1002/anie.202017117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Indexed: 12/15/2022]
Abstract
Here we report a bio-adhesive porous organic module (Glue COF) composed of hexagonally packed 1D nanopores based on a covalent organic framework. The nanopores are densely decorated with guanidinium ion (Gu+ ) pendants capable of forming salt bridges with oxyanionic species. Glue COF strongly adheres to biopolymers through multivalent salt-bridging interactions with their ubiquitous oxyanionic species. By taking advantage of its strong bio-adhesive nature, we succeeded in creating a gate that possibly opens the nanopores through a selective interaction with a reporter chemical and releases guest molecules. We chose calmodulin (CaM) as a gating component that can stably entrap a loaded guest, sulforhodamine B (SRB), within the nanopores (CaM COF⊃SRB). CaM is known to change its conformation on binding with Ca2+ ions. We confirmed that mixing CaM COF⊃SRB with Ca2+ resulted in the release of SRB from the nanopores, whereas the use of weakly binding Mg2+ ions resulted in a much slower release of SRB.
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Affiliation(s)
- Hyuna Jo
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Takashi Kitao
- Department of Advanced Materials Science, Graduate School of Frontier Sciences and Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Chiba, 227-8561, Japan
| | - Ayumi Kimura
- Institute of Engineering Innovation, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Yoshimitsu Itoh
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Kou Okuro
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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19
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Jo H, Kitao T, Kimura A, Itoh Y, Aida T, Okuro K. Bio‐adhesive Nanoporous Module: Toward Autonomous Gating. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hyuna Jo
- Department of Chemistry and Biotechnology School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Takashi Kitao
- Department of Advanced Materials Science Graduate School of Frontier Sciences and Department of Applied Chemistry Graduate School of Engineering The University of Tokyo Chiba 227-8561 Japan
| | - Ayumi Kimura
- Institute of Engineering Innovation The University of Tokyo 2-11-16 Yayoi, Bunkyo-ku Tokyo 113-8656 Japan
| | - Yoshimitsu Itoh
- Department of Chemistry and Biotechnology School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Takuzo Aida
- Department of Chemistry and Biotechnology School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- RIKEN Center for Emergent Matter Science 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Kou Okuro
- Department of Chemistry and Biotechnology School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
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20
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Yu Z, Zhang Z, Yan J, Zhao Z, Ge C, Song Z, Yin L, Tang H. Guanidine-rich helical polypeptides bearing hydrophobic amino acid pendants for efficient gene delivery. Biomater Sci 2021; 9:2670-2678. [PMID: 33605949 DOI: 10.1039/d0bm02188a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Non-viral gene delivery vectors with high transfection efficiency both in vitro and in vivo and low cytotoxicity are highly desirable for clinical applications. Herein, a series of guanidine-rich polypeptides bearing hydrophobic amino acid pendants was efficiently prepared via the 1,3-dipolar cycloaddition between azido decorated polypeptide and propargyl functionalized guanidinium and N-acetylamino acids. CD analysis indicated α-helical conformations of all resulting polypeptides in aqueous solution. The guanidine-rich polypeptide/DNA complexes showed significantly enhanced cellular internalization and high cell viability (>90%) in different mammalian cell lines (i.e., HeLa and RAW 264.7) at concentrations of the best performance. The top-performing guanidine-rich polypeptide containing 10% N-acetyl-l-valine pendants outperformed the commercial transfection reagent PEI by 400 times in vitro and 6 times in vivo. This study provides a new guidance for future molecular design of non-viral gene vectors with high delivery efficiency and low cytotoxicity.
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Affiliation(s)
- Zikun Yu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
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21
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Intestinal membrane transporter-mediated approaches to improve oral drug delivery. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2021. [DOI: 10.1007/s40005-021-00515-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Nifant'ev IE, Shlyakhtin AV, Bagrov VV, Tavtorkin AN, Ilyin SO, Gavrilov DE, Ivchenko PV. Cyclic ethylene phosphates with (CH 2) nCOOR and CH 2CONMe 2 substituents: synthesis and mechanistic insights of diverse reactivity in aryloxy-Mg complex-catalyzed (co)polymerization. Polym Chem 2021. [DOI: 10.1039/d1py01277k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein we present a comparative study of the reactivity of ethylene phosphates with –O(CH2)nCOOMe (n = 1–3, 5), –CH2COOtBu, –OCHMeCOOMe, and –OCH2CONMe2 substituents in BHT-Mg catalyzed ROP.
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Affiliation(s)
- Ilya E. Nifant'ev
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation
- M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow, Russian Federation
| | - Andrey V. Shlyakhtin
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation
- M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow, Russian Federation
| | - Vladimir V. Bagrov
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation
- M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow, Russian Federation
| | - Alexander N. Tavtorkin
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation
- M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow, Russian Federation
| | - Sergey O. Ilyin
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation
| | - Dmitry E. Gavrilov
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation
- M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow, Russian Federation
| | - Pavel V. Ivchenko
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation
- M. V. Lomonosov Moscow State University, Department of Chemistry, Moscow, Russian Federation
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23
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Nifant’ev I, Shlyakhtin A, Komarov P, Tavtorkin A, Kananykhina E, Elchaninov A, Vishnyakova P, Fatkhudinov T, Ivchenko P. In Vitro and In Vivo Studies of Biodegradability and Biocompatibility of Poly(εCL)- b-Poly(EtOEP)-Based Films. Polymers (Basel) 2020; 12:E3039. [PMID: 33353096 PMCID: PMC7766882 DOI: 10.3390/polym12123039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 02/07/2023] Open
Abstract
The control of surface bioadhesive properties of the subcutaneous implants is essential for the development of biosensors and controlled drug release devices. Poly(alkyl ethylene phosphate)-based (co)polymers are structurally versatile, biocompatible and biodegradable, and may be regarded as an alternative to poly(ethylene glycol) (PEG) copolymers in the creation of antiadhesive materials. The present work reports the synthesis of block copolymers of ε-caprolactone (εCL) and 2-ethoxy-1,3,2-dioxaphospholane-2-oxide (ethyl ethylene phosphate, EtOEP) with different content of EtOEP fragments, preparation of polymer films, and the results of the study of the impact of EtOEP/εCL ratio on the hydrophilicity (contact angle of wetting), hydrolytic stability, cytotoxicity, protein and cell adhesion, and cell proliferation using umbilical cord multipotent stem cells. It was found that the increase of EtOEP/εCL ratio results in increase of hydrophilicity of the polymer films with lowering of the protein and cell adhesion. MTT cytotoxicity test showed no significant deviations in toxicity of poly(εCL) and poly(εCL)-b-poly(EtOEP)-based films. The influence of the length of poly(EtOEP)chain in block-copolymers on fibrotic reactions was analyzed using subcutaneous implantation experiments (Wistar line rats), the increase of the width of the fibrous capsule correlated with higher EtOEP/εCL ratio. However, the copolymer-based film with highest content of polyphosphate had been subjected to faster degradation with a formation of developed contact surface of poly(εCL). The rate of the degradation of polyphosphate in vivo was significantly higher than the rate of the degradation of polyphosphate in vitro, which only confirms an objective value of in vivo experiments in the development of polymer materials for biomedical applications.
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Affiliation(s)
- Ilya Nifant’ev
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia; (A.S.); (P.I.)
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia; (P.K.); (A.T.)
- Faculty of Chemistry, National Research University Higher School of Economics, 20 Miasnitskaya Str., 101000 Moscow, Russia
| | - Andrey Shlyakhtin
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia; (A.S.); (P.I.)
| | - Pavel Komarov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia; (P.K.); (A.T.)
| | - Alexander Tavtorkin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia; (P.K.); (A.T.)
| | - Evgeniya Kananykhina
- Research Institute of Human Morphology, 3 Tsyurupy St., 117418 Moscow, Russia; (E.K.); (T.F.)
| | - Andrey Elchaninov
- National Medical Research Center for Obstetrics Gynecology and Perinatology Named after Academician V.I. Kulakov of Ministry of Healthcare of Russian Federation, 4 Oparina Str., 117997 Moscow, Russia; (A.E.); (P.V.)
| | - Polina Vishnyakova
- National Medical Research Center for Obstetrics Gynecology and Perinatology Named after Academician V.I. Kulakov of Ministry of Healthcare of Russian Federation, 4 Oparina Str., 117997 Moscow, Russia; (A.E.); (P.V.)
| | - Timur Fatkhudinov
- Research Institute of Human Morphology, 3 Tsyurupy St., 117418 Moscow, Russia; (E.K.); (T.F.)
- Department of Histology, Cytology and Embryology, Peoples’ Friendship University of Russia, Miklukho‐Maklaya 6 Str., 117198 Moscow, Russia
| | - Pavel Ivchenko
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia; (A.S.); (P.I.)
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia; (P.K.); (A.T.)
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24
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Martinent R, Du D, López-Andarias J, Sakai N, Matile S. Oligomers of Cyclic Oligochalcogenides for Enhanced Cellular Uptake. Chembiochem 2020; 22:253-259. [PMID: 32975867 DOI: 10.1002/cbic.202000630] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/24/2020] [Indexed: 12/20/2022]
Abstract
Monomeric cyclic oligochalcogenides (COCs) are emerging as attractive transporters to deliver substrates of interest into the cytosol through thiol-mediated uptake. The objective of this study was to explore COC oligomers. We report a systematic evaluation of monomers, dimers, and trimers of asparagusic, lipoic, and diselenolipoic acid as well as their supramolecular monomers, dimers, trimers, and tetramers. COC dimers were more than twice as active as the monomers on both the covalent and noncovalent levels, whereas COC trimers were not much better than dimers. These trends might suggest that thiol-mediated uptake of COCs is synergistic over both short and long distances, that is, it involves more than two COCs and more than one membrane protein, although other interpretations cannot be excluded at this level of complexity. These results thus provide attractive perspectives for structural evolution as well as imminent use in practice. Moreover, they validate automated HC-CAPA as an invaluable method to collect comprehensive data on cytosolic delivery within a reasonable time at a level of confidence that is otherwise inconceivable.
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Affiliation(s)
- Rémi Martinent
- Department of Organic Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
| | - Dongchen Du
- Department of Organic Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
| | - Javier López-Andarias
- Department of Organic Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211, Geneva, Switzerland
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25
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Kundu J, Banerjee P, Bose C, Das U, Ghosh U, Sinha S. Internal Oligoguanidinium Transporter: Mercury-Free Scalable Synthesis, Improvement of Cellular Localization, Endosomal Escape, Mitochondrial Localization, and Conjugation with Antisense Morpholino for NANOG Inhibition to Induce Chemosensitization of Taxol in MCF-7 Cells. Bioconjug Chem 2020; 31:2367-2382. [PMID: 32986398 DOI: 10.1021/acs.bioconjchem.0c00444] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A nontoxic delivery vehicle is essential for the therapeutic applications of antisense phosphorodiamidate morpholino oligonucleotides (PMOs). Though guanidinium-rich or arginine-rich cellular transporter conjugated Vivo-PMO or PPMO has been developed for in vivo application, however, either their toxicity or stability has become an issue. Previously, we reported nonpeptidic internal guanidinium transporter (IGT) mediated delivery of PMO for gene silencing and got encouraging results. In this paper, we report the synthesis of IGT using a Hg-free method for scale up and N-terminal modification of IGT with a suitable hydrophobic or lipophilic group to improve the cell permeability, endosomal escape, and mitochondrial localization and to reduce toxicity in the MTT assay. For the delivery of PMO, IGT-PMO conjugate was synthesized to target NANOG in cells, a transcription factor required for cancer stem cell proliferation and embryonic development and is involved in many cancers. Our data shows IGT-PMO-facilitated NANOG inhibition, and thereby the prevention of EpCAM-N-Cadherin-Vimentin axis mediated epithelial to mesenchymal transition (EMT) in MCF-7 cells. Moreover, unlike taxol, NANOG inhibition influences the expression of stemness factor c-Myc, Hh-Gli signaling proteins, other cancer related factors, and their respective phenotypes in cancer cells. To the best of our knowledge, this is the first report to illustrate that the IGT-PMO-mediated NANOG inhibition increases the therapeutic potential of taxol and induces G0-G1 arrest in cancer cells to prevent cancer progression. However, it warrants further investigation in other cancer cells and preclinical platforms.
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Affiliation(s)
- Jayanta Kundu
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Priyanjalee Banerjee
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Chandra Bose
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Ujjal Das
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Ujjwal Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
| | - Surajit Sinha
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, West Bengal, India
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26
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Linden G, Vázquez O. Bioorthogonal Turn-On BODIPY-Peptide Photosensitizers for Tailored Photodynamic Therapy. Chemistry 2020; 26:10014-10023. [PMID: 32638402 PMCID: PMC7496803 DOI: 10.1002/chem.202001718] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/22/2020] [Indexed: 12/13/2022]
Abstract
Photodynamic therapy (PDT) leads to cancer remission via the production of cytotoxic species under photosensitizer (PS) irradiation. However, concomitant damage and dark toxicity can both hinder its use. With this in mind, we have implemented a versatile peptide-based platform of bioorthogonally activatable BODIPY-tetrazine PSs. Confocal microscopy and phototoxicity studies demonstrated that the incorporation of the PS, as a bifunctional module, into a peptide enabled spatial and conditional control of singlet oxygen (1 O2 ) generation. Comparing subcellular distribution, PS confined in the cytoplasmic membrane achieved the highest toxicities (IC50 =0.096±0.003 μm) after activation and without apparent dark toxicity. Our tunable approach will inspire novel probes towards smart PDT.
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Affiliation(s)
- Greta Linden
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Straße 435043MarburgGermany
| | - Olalla Vázquez
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Straße 435043MarburgGermany
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27
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Liu J, Cao C. Evaluation of a GSH-targeting prodrug via a sulfonamide-induced "integrative" platform for selective cancer therapy. Analyst 2020; 145:4901-4905. [PMID: 32478783 DOI: 10.1039/d0an00627k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A sulfonamide-appended gemcitabine prodrug was newly produced. The prodrug was shown to efficiently distinguish GSH from cysteine and homocysteine. Upon reaction of this prodrug with GSH, which is relatively abundant in tumor cells, sulfonyl group cleavage occurred as well as active release of the drug GMC and a concomitant increase in the innate fluorescence intensity. As a proof of concept, colocalization experiments were carried out; these experiments demonstrated that the probe LHX resulted in, via receptor-mediated endocytosis, significantly improved therapeutic efficacy and few side effects. Thus, these results indicated the theranostic agent to be a promising "integrative" platform for efficient cancer therapy. The agent can be activated in real time, and not only be selectively monitored and localized by specific tumour cells, but also undergo cascaded cleavage to induce both a fluorogenic response and release of an active cytotoxic drug.
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Affiliation(s)
- Jun Liu
- The College of Chemistry and Chemical Engineering, Hexi University, Zhangye City 734000, Gansu Province, P. R. China.
| | - Cheng Cao
- The College of Chemistry and Chemical Engineering, Hexi University, Zhangye City 734000, Gansu Province, P. R. China.
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28
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Hentzen NB, Mogaki R, Otake S, Okuro K, Aida T. Intracellular Photoactivation of Caspase-3 by Molecular Glues for Spatiotemporal Apoptosis Induction. J Am Chem Soc 2020; 142:8080-8084. [DOI: 10.1021/jacs.0c01823] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Nina B. Hentzen
- Laboratorium für Organische Chemie, ETH Zürich, D-CHAB, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Rina Mogaki
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Saya Otake
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kou Okuro
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Riken Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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29
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Lv J, Tan E, Wang Y, Fan Q, Yu J, Cheng Y. Tailoring guanidyl-rich polymers for efficient cytosolic protein delivery. J Control Release 2020; 320:412-420. [DOI: 10.1016/j.jconrel.2020.01.056] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/17/2020] [Accepted: 01/30/2020] [Indexed: 12/18/2022]
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30
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Bhadoria R, Ping K, Lohk C, Järving I, Starkov P. A phenotypic approach to probing cellular outcomes using heterobivalent constructs. Chem Commun (Camb) 2020; 56:4216-4219. [PMID: 32181457 DOI: 10.1039/c9cc09595k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various conjugation techniques are used to affect the intracellular delivery of bioactive small molecules. However, the ability to track changes in the phenotype when applying these tools remains poorly studied. We addressed this issue by having prepared a focused library of heterobivalent constructs based on Rho kinase inhibitor HA-100. By comparing the induction of the phenotype of interest, cell viability and cellular uptake, we demonstrate that various conjugates indeed lead to divergent cellular outcomes.
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Affiliation(s)
- Rohit Bhadoria
- Department of Chemistry & Biotechnology, Tallinn University of Technology, 12618 Tallinn, Estonia.
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31
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Watson JL, Stangherlin A, Derivery E. Quantitative Chemical Delivery of Quantum Dots into the Cytosol of Cells. Methods Mol Biol 2020; 2135:179-197. [PMID: 32246335 DOI: 10.1007/978-1-0716-0463-2_10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The ability to image single molecules in living cells has been impaired by the absence of bright, photostable fluorophores. Quantum dots (QDs) offer an attractive solution to this problem due to their exceptional photostability and brightness. Here, we describe in detail a protocol to chemically deliver functionalized QDs into the cytosol of living cells, based on cell-penetrating poly(disulfide)s (CPDs). This protocol is highly efficient and delivers hundreds of QDs per cell after incubation of cells with functionalized QDs at nanomolar concentrations. We also detail a pipeline for automated detection and tracking of diffusive QDs in living cells, which may provide a useful means to study the biophysical properties of the cytosol and their dynamics. Last, we describe a protocol for conjugating streptavidin fusion proteins to QDs, in order to permit the codelivery of QDs with functional proteins of interest into cells. The protocol has been successfully applied to a broad range of different cell types, thus offering a flexible and generalizable means to image single molecules in living cells.
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32
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Wang X, Hadjichristidis N. Poly(amine-co-ester)s by Binary Organocatalytic Ring-Opening Polymerization of N-Boc-1,4-oxazepan-7-one: Synthesis, Characterization, and Self-Assembly. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b02084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xin Wang
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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33
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Nifant’ev I, Bukharova T, Dyakonov A, Goldshtein D, Galitsyna E, Kosarev M, Shlyakhtin A, Gavrilov D, Ivchenko P. Osteogenic Differentiation of Human Adipose Tissue-Derived MSCs by Non-Toxic Calcium Poly(ethylene phosphate)s. Int J Mol Sci 2019; 20:E6242. [PMID: 31835689 PMCID: PMC6940807 DOI: 10.3390/ijms20246242] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/27/2019] [Accepted: 12/08/2019] [Indexed: 12/14/2022] Open
Abstract
There is a current clinical need for the development of bone void fillers and bioactive bone graft substitutes. The use of mesenchymal stem cells (MSCs) that are seeded into 3D scaffolds and induce bone generation in the event of MSCs osteogenic differentiation is highly promising. Since calcium ions and phosphates promote the osteogenic differentiation of MSCs, the use of the calcium complexes of phosphate-containing polymers is highly prospective in the development of osteogenic scaffolds. Calcium poly(ethylene phosphate)s (PEP-Ca) appear to be potentially suitable candidates primarily because of PEP's biodegradability. In a series of experiments with human adipose-tissue-derived multipotent mesenchymal stem cells (ADSCs), we demonstrated that PEP-Ca are non-toxic and give rise to osteogenesis gene marker, bone morphogenetic protein 2 (BMP-2) and mineralization of the intercellular matrix. Owing to the synthetic availability of poly(ethylene phosphoric acid) block copolymers, these results hold out the possibility for the development of promising new polymer composites for orthopaedic and maxillofacial surgery.
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Affiliation(s)
- Ilya Nifant’ev
- Chemistry Department, M.V. Lomonosov Moscow State University, 1–3 Leninskie Gory, 119991 Moscow, Russia; (M.K.); (A.S.); (D.G.); (P.I.)
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Tatiana Bukharova
- Research Centre for Medical Genetics, 1 Moskvorechye Str., 115522 Moscow, Russia; (T.B.); (A.D.); (D.G.); (E.G.)
| | - Alexander Dyakonov
- Research Centre for Medical Genetics, 1 Moskvorechye Str., 115522 Moscow, Russia; (T.B.); (A.D.); (D.G.); (E.G.)
| | - Dmitry Goldshtein
- Research Centre for Medical Genetics, 1 Moskvorechye Str., 115522 Moscow, Russia; (T.B.); (A.D.); (D.G.); (E.G.)
| | - Elena Galitsyna
- Research Centre for Medical Genetics, 1 Moskvorechye Str., 115522 Moscow, Russia; (T.B.); (A.D.); (D.G.); (E.G.)
| | - Maxim Kosarev
- Chemistry Department, M.V. Lomonosov Moscow State University, 1–3 Leninskie Gory, 119991 Moscow, Russia; (M.K.); (A.S.); (D.G.); (P.I.)
| | - Andrey Shlyakhtin
- Chemistry Department, M.V. Lomonosov Moscow State University, 1–3 Leninskie Gory, 119991 Moscow, Russia; (M.K.); (A.S.); (D.G.); (P.I.)
| | - Dmitry Gavrilov
- Chemistry Department, M.V. Lomonosov Moscow State University, 1–3 Leninskie Gory, 119991 Moscow, Russia; (M.K.); (A.S.); (D.G.); (P.I.)
| | - Pavel Ivchenko
- Chemistry Department, M.V. Lomonosov Moscow State University, 1–3 Leninskie Gory, 119991 Moscow, Russia; (M.K.); (A.S.); (D.G.); (P.I.)
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
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34
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Ultrafast hydrolytic degradation of 2,3-dihydroxypropyl functionalized poly(ethylene phosphates). MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Nifant'ev IE, Shlyakhtin AV, Tavtorkin AN, Kosarev MA, Gavrilov DE, Komarov PD, Ilyin SO, Karchevsky SG, Ivchenko PV. Mechanistic study of transesterification in TBD-catalyzed ring-opening polymerization of methyl ethylene phosphate. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.06.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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36
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Cheng Y, Zong L, López‐Andarias J, Bartolami E, Okamoto Y, Ward TR, Sakai N, Matile S. Cell-Penetrating Dynamic-Covalent Benzopolysulfane Networks. Angew Chem Int Ed Engl 2019; 58:9522-9526. [PMID: 31168906 PMCID: PMC6618005 DOI: 10.1002/anie.201905003] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Indexed: 12/13/2022]
Abstract
Cyclic oligochalcogenides (COCs) are emerging as promising systems to penetrate cells. Clearly better than and different to the reported diselenolanes and epidithiodiketopiperazines, we introduce the benzopolysulfanes (BPS), which show efficient delivery, insensitivity to inhibitors of endocytosis, and compatibility with substrates as large as proteins. This high activity coincides with high reactivity, selectively toward thiols, exceeding exchange rates of disulfides under tension. The result is a dynamic-covalent network of extreme sulfur species, including cyclic oligomers, from dimers to heptamers, with up to nineteen sulfurs in the ring. Selection from this unfolding adaptive network then yields the reactivities and selectivities needed to access new uptake pathways. Contrary to other COCs, BPS show high retention on thiol affinity columns. The identification of new modes of cell penetration is important because they promise new solutions to challenges in delivery and beyond.
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Affiliation(s)
- Yangyang Cheng
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
| | - Lili Zong
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
- Current address: School of Pharmaceutical SciencesXiamen UniversityXiamen361102China
| | | | - Eline Bartolami
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
- Current address: SyMMES, UMR 5819CEA38054GrenobleFrance
| | | | - Thomas R. Ward
- Department of ChemistryUniversity of BaselBaselSwitzerland
| | - Naomi Sakai
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
| | - Stefan Matile
- Department of Organic ChemistryUniversity of GenevaGenevaSwitzerland
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37
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Cheng Y, Zong L, López‐Andarias J, Bartolami E, Okamoto Y, Ward TR, Sakai N, Matile S. Cell‐Penetrating Dynamic‐Covalent Benzopolysulfane Networks. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yangyang Cheng
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
| | - Lili Zong
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
- Current address: School of Pharmaceutical SciencesXiamen University Xiamen 361102 China
| | | | - Eline Bartolami
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
- Current address: SyMMES, UMR 5819CEA 38054 Grenoble France
| | | | - Thomas R. Ward
- Department of ChemistryUniversity of Basel Basel Switzerland
| | - Naomi Sakai
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
| | - Stefan Matile
- Department of Organic ChemistryUniversity of Geneva Geneva Switzerland
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38
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Benner NL, McClellan RL, Turlington CR, Haabeth OAW, Waymouth RM, Wender PA. Oligo(serine ester) Charge-Altering Releasable Transporters: Organocatalytic Ring-Opening Polymerization and their Use for in Vitro and in Vivo mRNA Delivery. J Am Chem Soc 2019; 141:8416-8421. [PMID: 31083999 PMCID: PMC7209379 DOI: 10.1021/jacs.9b03154] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
RNA technology is transforming life science research and medicine, but many applications are limited by the accessibility, cost, efficacy, and tolerability of delivery systems. Here we report the first members of a new class of dynamic RNA delivery vectors, oligo(serine ester)-based charge-altering releasable transporters (Ser-CARTs). Composed of lipid-containing oligocarbonates and cationic oligo(serine esters), Ser-CARTs are readily prepared (one flask) by a mild ring-opening polymerization using thiourea anions and, upon simple mixing with mRNA, readily form complexes that degrade to neutral serine-based products, efficiently releasing their mRNA cargo. mRNA/Ser-CART transfection efficiencies of >95% are achieved in vitro. Intramuscular or intravenous (iv) injections of mRNA/Ser-CARTs into living mice result in in vivo expression of a luciferase reporter protein, with spleen localization observed after iv injection.
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Affiliation(s)
- Nancy L. Benner
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Rebecca L. McClellan
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | | | - Ole A. W. Haabeth
- Department of Medicine, Division of Oncology, Stanford Cancer Institute, Stanford University, Stanford, California 94305, United States
| | - Robert M. Waymouth
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Paul A. Wender
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
- Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
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39
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Mogaki R, Okuro K, Ueki R, Sando S, Aida T. Molecular Glue that Spatiotemporally Turns on Protein–Protein Interactions. J Am Chem Soc 2019; 141:8035-8040. [DOI: 10.1021/jacs.9b02427] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Rina Mogaki
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kou Okuro
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryosuke Ueki
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Riken Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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40
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Wang Y, Wang Q, Hou L, Zhou M, Dong D, Zhang N. Functionalized Polyphosphoester via Living Ring-opening Polymerization and Photochemical Thiol-ene Click Reaction. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-8309-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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41
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Dharmaratne NU, Pothupitiya JU, Kiesewetter MK. The mechanistic duality of (thio)urea organocatalysts for ring-opening polymerization. Org Biomol Chem 2019; 17:3305-3313. [PMID: 30834919 DOI: 10.1039/c8ob03174f] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Among the various catalysts for ROP, H-bonding organocatalysts stand out in the precise level of reaction control they are able to render during ROP. The H-bonding class of organocatalysts are thought to effect ROP via dual activation of both monomer and chain end. (Thio)urea mediated ROP has experienced a renaissance as a new polymerization mechanism - mediated by imidate or thioimidate species - facilitates new modes of reactivity and new synthetic abilities. Indeed, the urea class of H-bond donors has been shown to be more active than their corresponding thioureas. The imidate mechanism remains highly active in polar solvents and exhibits remarkable control - and 'living' behavior - under solvent-free conditions, and a broad range of temperatures is accessible. The advancements in synthetic abilities have all evolved through a greater understanding of reaction mechanism. Through the continued synergistic advances of catalysis and material, the (thio)urea class of catalyst can find use in a host of potential applications, research and industrial environments.
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42
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Zhai S, Hu X, Ji Z, Qin H, Wang Z, Hu Y, Xing D. Pulsed Microwave-Pumped Drug-Free Thermoacoustic Therapy by Highly Biocompatible and Safe Metabolic Polyarginine Probes. NANO LETTERS 2019; 19:1728-1735. [PMID: 30734565 DOI: 10.1021/acs.nanolett.8b04723] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Serious side effects are plaguing traditional chemotherapy, and the development of drug-free treatment is expected to ease the dilemma. Herein, drug-free polyarginine probes are fabricated from the co-polymerization of arginine monomer and slight amount of rhodamine B monomer, which are efficient for thermoacoustic imaging and therapy with high biocompatibility and safe metabolism. Polyarginine can be strongly pumped upon pulsed microwave irradiation, generating significant thermoacoustic shockwaves, namely thermocavitation, which can in situ destroy mitochondria to initiate programmed cancer cell apoptosis. In vivo explorations demonstrate the high theranostic efficiency for cancer thermoacoustic imaging and cancer inhibition, exhibiting low systemic cytotoxicity and good biocompatibility after systemic administration. Herein, pulsed microwave-pumped biocompatible polyarginine is promising for drug-free precision theranostics without any detectable side effects, and the deep penetration potency of microwave makes it potentially able to treat deep-seated diseases in future biomedicine.
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Bartolami E, Basagiannis D, Zong L, Martinent R, Okamoto Y, Laurent Q, Ward TR, Gonzalez‐Gaitan M, Sakai N, Matile S. Diselenolane‐Mediated Cellular Uptake: Efficient Cytosolic Delivery of Probes, Peptides, Proteins, Artificial Metalloenzymes and Protein‐Coated Quantum Dots. Chemistry 2019; 25:4047-4051. [DOI: 10.1002/chem.201805900] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/29/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Eline Bartolami
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
- National Centre of Competence in Research (NCCR) Molecular Systems Engineering CH-4002 Basel Switzerland
| | - Dimitris Basagiannis
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
| | - Lili Zong
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
- Current Address: School of Chemistry and Chemical EngineeringSoutheast University Nanjing 210096 China
| | - Rémi Martinent
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
| | - Yasunori Okamoto
- Department of ChemistryUniversity of Basel Basel Switzerland
- National Centre of Competence in Research (NCCR) Molecular Systems Engineering CH-4002 Basel Switzerland
| | - Quentin Laurent
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
- National Centre of Competence in Research (NCCR) Molecular Systems Engineering CH-4002 Basel Switzerland
| | - Thomas R. Ward
- Department of ChemistryUniversity of Basel Basel Switzerland
- National Centre of Competence in Research (NCCR) Molecular Systems Engineering CH-4002 Basel Switzerland
| | - Marcos Gonzalez‐Gaitan
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
| | - Naomi Sakai
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
- National Centre of Competence in Research (NCCR) Molecular Systems Engineering CH-4002 Basel Switzerland
| | - Stefan Matile
- National Centre of Competence in Research (NCCR) Chemical Biology, School of Chemistry and BiochemistryUniversity of Geneva CH-1211 Geneva Switzerland
- National Centre of Competence in Research (NCCR) Molecular Systems Engineering CH-4002 Basel Switzerland
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Emerging transporter-targeted nanoparticulate drug delivery systems. Acta Pharm Sin B 2019; 9:49-58. [PMID: 30766777 PMCID: PMC6361857 DOI: 10.1016/j.apsb.2018.10.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/11/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022] Open
Abstract
Transporter-targeted nanoparticulate drug delivery systems (nano-DDS) have emerged as promising nanoplatforms for efficient drug delivery. Recently, great progress in transporter-targeted strategies has been made, especially with the rapid developments in nanotherapeutics. In this review, we outline the recent advances in transporter-targeted nano-DDS. First, the emerging transporter-targeted nano-DDS developed to facilitate oral drug delivery are reviewed. These include improvements in the oral absorption of protein and peptide drugs, facilitating the intravenous-to-oral switch in cancer chemotherapy. Secondly, the recent advances in transporter-assisted brain-targeting nano-DDS are discussed, focusing on the specific transporter-based targeting strategies. Recent developments in transporter-mediated tumor-targeting drug delivery are also discussed. Finally, the possible transport mechanisms involved in transporter-mediated endocytosis are highlighted, with special attention to the latest findings of the interactions between membrane transporters and nano-DDS.
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45
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Fernandes-Cunha G, McKinlay CJ, Vargas JR, Jessen HJ, Waymouth RM, Wender PA. Delivery of Inorganic Polyphosphate into Cells Using Amphipathic Oligocarbonate Transporters. ACS CENTRAL SCIENCE 2018; 4:1394-1402. [PMID: 30410977 PMCID: PMC6202642 DOI: 10.1021/acscentsci.8b00470] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Indexed: 05/10/2023]
Abstract
Inorganic polyphosphate (polyP) is an often-overlooked biopolymer of phosphate residues present in living cells. PolyP is associated with many essential biological roles. Despite interest in polyP's function, most studies have been limited to extracellular or isolated protein experiments, as polyanionic polyP does not traverse the nonpolar membrane of cells. To address this problem, we developed a robust, readily employed method for polyP delivery using guanidinium-rich oligocarbonate transporters that electrostatically complex polyPs of multiple lengths, forming discrete nanoparticles that are resistant to phosphatase degradation and that readily enter multiple cell types. Fluorescently labeled polyPs have been monitored over time for subcellular localization and release from the transporter, with control over release rates achieved by modulating the transporter identity and the charge ratio of the electrostatic complexes. This general approach to polyP delivery enables the study of intracellular polyP signaling in a variety of applications.
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Affiliation(s)
- Gabriella
M. Fernandes-Cunha
- Department
of Chemistry and Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
| | - Colin J. McKinlay
- Department
of Chemistry and Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
| | - Jessica R. Vargas
- Department
of Chemistry and Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
| | - Henning J. Jessen
- Institute
of Organic Chemistry, Albert-Ludwigs University, Freiburg Albertstr. 21, 79104 Freiburg, Germany
| | - Robert M. Waymouth
- Department
of Chemistry and Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
| | - Paul A. Wender
- Department
of Chemistry and Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
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46
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Grogg M, Hilvert D, Ebert MO, Beck AK, Seebach D, Kurth F, Dittrich PS, Sparr C, Wittlin S, Rottmann M, Mäser P. Cell Penetration, Herbicidal Activity, and in-vivo-Toxicity of Oligo-Arginine Derivatives and of Novel Guanidinium-Rich Compounds Derived from the Biopolymer Cyanophycin. Helv Chim Acta 2018; 101:e1800112. [PMID: 30905972 PMCID: PMC6426238 DOI: 10.1002/hlca.201800112] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/02/2018] [Indexed: 11/10/2022]
Abstract
Oligo-arginines are thoroughly studied cell-penetrating peptides (CPPs, Figures 1 and 2). Previous in-vitro investigations with the octaarginine salt of the phosphonate fosmidomycin (herbicide and anti-malaria drug) have shown a 40-fold parasitaemia inhibition with P. falciparum, compared to fosmidomycin alone (Figure 3). We have now tested this salt, as well as the corresponding phosphinate salt of the herbicide glufosinate, for herbicidal activity with whole plants by spray application, hoping for increased activities, i.e. decreased doses. However, both salts showed low herbicidal activity, indicating poor foliar uptake (Table 1). Another pronounced difference between in-vitro and in-vivo activity was demonstrated with various cell-penetrating octaarginine salts of fosmidomycin: intravenous injection to mice caused exitus of the animals within minutes, even at doses as low as 1.4 μmol/kg (Table 2). The results show that use of CPPs for drug delivery, for instance to cancer cells and tissues, must be considered with due care. The biopolymer cyanophycin is a poly-aspartic acid containing argininylated side chains (Figure 4); its building block is the dipeptide H-βAsp-αArg-OH (H-Adp-OH). To test and compare the biological properties with those of octaarginines we synthesized Adp8-derivatives (Figure 5). Intravenouse injection of H-Adp8-NH2 into the tail vein of mice with doses as high as 45 μmol/kg causes no symptoms whatsoever (Table 3), but H-Adp8-NH2 is not cell penetrating (HEK293 and MCF-7 cells, Figure 6). On the other hand, the fluorescently labeled octamers FAM-(Adp(OMe))8-NH2 and FAM-(Adp(NMe2))8-NH2 with ester and amide groups in the side chains exhibit mediocre to high cell-wall permeability (Figure 6), and are toxic (Table 3). Possible reasons for this behavior are discussed (Figure 7) and corresponding NMR spectra are presented (Figure 8).
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Affiliation(s)
- Marcel Grogg
- Laboratorium für Organische Chemie, Departement Chemie und Angewandte Biowissenschaften, ETH-Zürich, Hönggerberg HCI, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Donald Hilvert
- Laboratorium für Organische Chemie, Departement Chemie und Angewandte Biowissenschaften, ETH-Zürich, Hönggerberg HCI, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Marc-Olivier Ebert
- Laboratorium für Organische Chemie, Departement Chemie und Angewandte Biowissenschaften, ETH-Zürich, Hönggerberg HCI, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Albert K. Beck
- Laboratorium für Organische Chemie, Departement Chemie und Angewandte Biowissenschaften, ETH-Zürich, Hönggerberg HCI, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Dieter Seebach
- Laboratorium für Organische Chemie, Departement Chemie und Angewandte Biowissenschaften, ETH-Zürich, Hönggerberg HCI, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Felix Kurth
- Department of Biosystems Science and Engineering, ETH Zürich, BSD H 368, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Petra S. Dittrich
- Department of Biosystems Science and Engineering, ETH Zürich, BSD H 368, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Christof Sparr
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Sergio Wittlin
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4051 Basel, Switzerland
| | - Matthias Rottmann
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4051 Basel, Switzerland
| | - Pascal Mäser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4051 Basel, Switzerland
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Zhang C, Moonshi SS, Wang W, Ta HT, Han Y, Han FY, Peng H, Král P, Rolfe BE, Gooding JJ, Gaus K, Whittaker AK. High F-Content Perfluoropolyether-Based Nanoparticles for Targeted Detection of Breast Cancer by 19F Magnetic Resonance and Optical Imaging. ACS NANO 2018; 12:9162-9176. [PMID: 30118590 DOI: 10.1021/acsnano.8b03726] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Two important challenges in the field of 19F magnetic resonance imaging (MRI) are the maintenance of high fluorine content without compromising imaging performance, and effective targeting of small particles to diseased tissue. To address these challenges, we have developed a series of perfluoropolyether (PFPE)-based hyperbranched (HBPFPE) nanoparticles with attached peptide aptamer as targeting ligands for specific in vivo detection of breast cancer with high 19F MRI sensitivity. A detailed comparison of the HBPFPE nanoparticles (NPs) with the previously reported trifluoroethyl acrylate (TFEA)-based polymers demonstrates that the mobility of fluorinated segments of the HBPFPE nanoparticles is significantly enhanced (19F T2 > 80 ms vs 31 ms), resulting in superior MR imaging sensitivity. Selective targeting was confirmed by auto- and pair correlation analysis of fluorescence microscopy data, in vitro immunofluorescence, in vivo 19F MRI, ex vivo fluorescence and 19F NMR. The results highlight the high efficiency of aptamers for targeting and the excellent sensitivity of the PFPE moieties for 19F MRI. Of relevance to in vivo applications, the PFPE-based polymers exhibit much faster clearance from the body than the previously introduced perfluorocarbon emulsions ( t1/2 ∼ 20 h vs up to months). Moreover, the aptamer-conjugated NPs show significantly higher tumor-penetration, demonstrating the potential of these imaging agents for therapeutic applications. This report of the synthesis of polymeric aptamer-conjugated PFPE-based 19F MRI CAs with high fluorine content (∼10 wt %) demonstrates that these NPs are exciting candidates for detecting diseases with high imaging sensitivity.
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Affiliation(s)
| | | | | | | | | | - Felicity Y Han
- Centre for Integrated Preclinical Drug Development , The University of Queensland , Brisbane , Qld 4072 , Australia
| | | | - Petr Král
- Department of Biopharmaceutical Sciences , University of Illinois at Chicago , Chicago , Illinois 60612 , United States
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Ahn J, Lee B, Choi Y, Jin H, Lim NY, Park J, Kim JH, Bae J, Jung JH. Non-peptidic guanidinium-functionalized silica nanoparticles as selective mitochondria-targeting drug nanocarriers. J Mater Chem B 2018; 6:5698-5707. [PMID: 32254976 DOI: 10.1039/c8tb01358f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We report on the design and fabrication of a Fe3O4 core-mesoporous silica nanoparticle shell (Fe3O4@MSNs)-based mitochondria-targeting drug nanocarrier. A guanidinium derivative (GA) was conjugated onto the Fe3O4@MSNs as the mitochondria-targeting ligand. The fabrication of the Fe3O4@MSNs and their functionalization with GA were carried out by the sol-gel polymerization of alkoxysilane groups. Doxorubicin (DOX), an anti-cancer drug, was loaded into the pores of a GA-attached Fe3O4@MSNs due to both its anti-cancer properties and to allow for the fluorescent visualization of the nanocarriers. The selective and efficient mitochondria-targeting ability of a DOX-loaded GA-Fe3O4@MSNs (DOX/GA-Fe3O4@MSNs) was demonstrated by a co-localization study, transmission electron microscopy, and a fluorometric analysis on isolated mitochondria. It was found that the DOX/GA-Fe3O4@MSNs selectively accumulated into mitochondria within only five minutes; to the best of our knowledge, this is the shortest accumulation time reported for mitochondria targeting systems. Moreover, 2.6 times higher amount of DOX was accumulated in mitochondria by DOX/GA-Fe3O4@MSNs than by DOX/TPP-Fe3O4@MSNs. A cell viability assay indicated that the DOX/GA-Fe3O4@MSNs have high cytotoxicity to cancer cells, whereas the GA-Fe3O4@MSNs without DOX are non-cytotoxic; this indicates that the DOX/GA-Fe3O4@MSNs have great potential for use as biocompatible and effective mitochondria-targeting nanocarriers for cancer therapy.
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Affiliation(s)
- Junho Ahn
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University, Jinju, 52828, Korea.
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Vazdar M, Heyda J, Mason PE, Tesei G, Allolio C, Lund M, Jungwirth P. Arginine "Magic": Guanidinium Like-Charge Ion Pairing from Aqueous Salts to Cell Penetrating Peptides. Acc Chem Res 2018; 51:1455-1464. [PMID: 29799185 DOI: 10.1021/acs.accounts.8b00098] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
It is a textbook knowledge that charges of the same polarity repel each other. For two monovalent ions in the gas phase at a close contact this repulsive interaction amounts to hundreds of kilojoules per mole. In aqueous solutions, however, this Coulomb repulsion is strongly attenuated by a factor equal to the dielectric constant of the medium. The residual repulsion, which now amounts only to units of kilojoules per mole, may be in principle offset by attractive interactions. Probably the smallest cationic pair, where a combination of dispersion and cavitation forces overwhelms the Coulomb repulsion, consists of two guanidinium ions in water. Indeed, by a combination of molecular dynamics with electronic structure calculations and electrophoretic, as well as spectroscopic, experiments, we have demonstrated that aqueous guanidinium cations form (weakly) thermodynamically stable like-charge ion pairs. The importance of pairing of guanidinium cations in aqueous solutions goes beyond a mere physical curiosity, since it has significant biochemical implications. Guanidinium chloride is known to be an efficient and flexible protein denaturant. This is due to the ability of the orientationally amphiphilic guanidinium cations to disrupt various secondary structural motifs of proteins by pairing promiscuously with both hydrophobic and hydrophilic groups, including guanidinium-containing side chains of arginines. The fact that the cationic guanidinium moiety forms the dominant part of the arginine side chain implies that the like-charge ion pairing may also play a role for interactions between peptides and proteins. Indeed, arginine-arginine pairing has been frequently found in structural protein databases. In particular, when strengthened by a presence of negatively charged glutamate, aspartate, or C-terminal carboxylic groups, this binding motif helps to stabilize peptide or protein dimers and is also found in or near active sites of several enzymes. The like-charge pairing of the guanidinium side-chain groups may also hold the key to the understanding of the arginine "magic", that is, the extraordinary ability of arginine-rich polypeptides to passively penetrate across cellular membranes. Unlike polylysines, which are also highly cationic but lack the ease in crossing membranes, polyarginines do not exhibit mutual repulsion. Instead, they accumulate at the membrane, weaken it, and might eventually cross in a concerted, "train-like" manner. This behavior of arginine-rich cell penetrating peptides can be exploited when devising smart strategies how to deliver in a targeted way molecular cargos into the cell.
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Affiliation(s)
- Mario Vazdar
- Division of Organic Chemistry and Biochemistry, Rudjer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Jan Heyda
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, Technicka 5, 16628 Prague, Czech Republic
| | - Philip E. Mason
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Giulio Tesei
- Division of Theoretical Chemistry, Department of Chemistry, Lund University, SE-221 00 Lund, Sweden
| | - Christoph Allolio
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Giv’at Ram, Jerusalem 9190401, Israel
| | - Mikael Lund
- Division of Theoretical Chemistry, Department of Chemistry, Lund University, SE-221 00 Lund, Sweden
| | - Pavel Jungwirth
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
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Martin L, Peltier R, Kuroki A, Town JS, Perrier S. Investigating Cell Uptake of Guanidinium-Rich RAFT Polymers: Impact of Comonomer and Monomer Distribution. Biomacromolecules 2018; 19:3190-3200. [DOI: 10.1021/acs.biomac.8b00146] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
| | | | | | | | - Sébastien Perrier
- Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
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