1
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Tokura D, Konarita K, Suzuki M, Ogata K, Honda Y, Miura Y, Nishiyama N, Nomoto T. Active control of pharmacokinetics using light-responsive polymer-drug conjugates for boron neutron capture therapy. J Control Release 2024; 371:445-454. [PMID: 38844180 DOI: 10.1016/j.jconrel.2024.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 05/03/2024] [Accepted: 06/03/2024] [Indexed: 06/11/2024]
Abstract
In boron neutron capture therapy (BNCT), boron drugs should exhibit high intratumoral boron concentrations during neutron irradiation, while being cleared from the blood and normal organs. However, it is usually challenging to achieve such tumor accumulation and quick clearance simultaneously in a temporally controlled manner. Here, we developed a polymer-drug conjugate that can actively control the clearance of the drugs from the blood. This polymer-drug conjugate is based on a biocompatible polymer that passively accumulates in tumors. Its side chains were conjugated with the low-molecular-weight boron drugs, which are immediately excreted by the kidneys, via photolabile linkers. In a murine subcutaneous tumor model, the polymer-drug conjugate could accumulate in the tumor with the high boron concentration ratio of the tumor to the surrounding normal tissue (∼10) after intravenous injection while a considerable amount remained in the bloodstream as well. Photoirradiation to blood vessels through the skin surface cleaved the linker to release the boron drug in the blood, allowing for its rapid clearance from the bloodstream. Meanwhile, the boron concentration in the tumor which was not photoirradiated could be maintained high, permitting strong BNCT effects. In clinical BNCT, the dose of thermal neutrons to solid tumors is determined by the maximum radiation exposure to normal organs. Thus, our polymer-drug conjugate may enable us to increase the therapeutic radiation dose to tumors in such a practical situation.
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Affiliation(s)
- Daiki Tokura
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan; Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Kakeru Konarita
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan; Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Minoru Suzuki
- Division of Particle Radiation Oncology, Particle Radiation Oncology Research Center, Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - Keisuke Ogata
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Yuto Honda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Yutaka Miura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Takahiro Nomoto
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan; Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
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2
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Tan MF, Hosier BM, Forsythe NL, Maynard HD. Enzyme-Polymer Conjugates with Photocleavable Linkers for Control Over Protein Activity. Polym Chem 2024; 15:1085-1092. [PMID: 38854662 PMCID: PMC11155517 DOI: 10.1039/d3py01339a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Reversible conjugation of polymers to proteins is important for a variety of applications, for example to control protein activity. Light is often employed as an external trigger to allow for spatio and temporal control over release of a payload. In this report, we demonstrate preparation of photocleavable poly(polyethylene glycol) acrylate)-lysozyme (pPEGA-Lys) conjugates via ortho-nitrobenzyl linkages. The conjugates were made by both grafting-to and grafting-from in order to compare and contrast the two synthetic approaches. First, a lysine-reactive ortho-nitrobenzyl atom transfer radical polymerization (ATRP) initiator was synthesized. For the grafting-to strategy, the initiator was employed in the ATRP of PEGA, and the subsequent polymer was conjugated to the lysine residues of lysozyme. For the grafting-from strategy, lysozyme was modified first with the photocleavable initiator, and the purified macroinitiator was then subjected to polymerization conditions to synthesize the protein-polymer conjugate. The polymer was cleaved from the protein via UV light, and activity before and after polymer removal was evaluated, showing 83% recovery. This work provides evidence that reversing conjugation is successful for activity modulation for ortho-nitrobenzyl linked protein-polymer conjugates.
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Affiliation(s)
- Mikayla F Tan
- Department of Chemistry and Biochemistry and California NanoSystems Institute, 607 Charles E. Young Drive East, University of California, Los Angeles, CA 90095-1569, USA
| | - Brock M Hosier
- Department of Chemistry and Biochemistry and California NanoSystems Institute, 607 Charles E. Young Drive East, University of California, Los Angeles, CA 90095-1569, USA
| | - Neil L Forsythe
- Department of Chemistry and Biochemistry and California NanoSystems Institute, 607 Charles E. Young Drive East, University of California, Los Angeles, CA 90095-1569, USA
| | - Heather D Maynard
- Department of Chemistry and Biochemistry and California NanoSystems Institute, 607 Charles E. Young Drive East, University of California, Los Angeles, CA 90095-1569, USA
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3
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Judge N, Heise A. Investigation of the Effectiveness of Photo Deprotection of Polypeptides in Solution and within the Core of Miniemulsion-Derived Nanoparticles. Macromolecules 2024; 57:1979-1987. [PMID: 38495387 PMCID: PMC10938878 DOI: 10.1021/acs.macromol.3c02538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/02/2024] [Accepted: 02/08/2024] [Indexed: 03/19/2024]
Abstract
Homopolymerization of ortho-nitrobenzyl (oNB)-protected l-cysteine and l-glutamic acid was systematically studied in different solvents and at different monomer to initiator ratios, revealing the best reaction control in dimethylformamide (DMF) across a range of degrees of polymerization. In the subsequent ultraviolet (UV)-cleavage studies, it was found that quantitative deprotection upon UV exposure at 365 nm was not achievable for either of the homopolypeptides as confirmed by 1H NMR and UV/visible (UV/vis) analyses. While the poly(oNB-l-cysteine) deprotected more readily with no effect of the polypeptide molecular weight, lower molecular weight poly(oNB-l-glutamate) reached maximum deprotection faster than high molecular weight samples. This was further confirmed by the pH changes of the solution. When incorporated into the core of miniemulsion-derived nanoparticles, both oNB-protected copolypeptides were successfully deprotected as evident from a color change and a pH change in the case of poly(oNB-l-glutamate). However, the removal of the deprotection byproduct nitrosobenzaldehyde proved unsuccessful, which indicates a diffusion barrier caused by the nanoparticle's surfactant. The study provides insights and guidelines for the UV deprotection of polypeptides and demonstrates the ability to selectively UV-deprotect polypeptides in the confined space of a nanoparticle dispersion.
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Affiliation(s)
- Nicola Judge
- Department
of Chemistry, RCSI University of Medicine
and Health Sciences, Dublin D02 YN77, Ireland
| | - Andreas Heise
- Department
of Chemistry, RCSI University of Medicine
and Health Sciences, Dublin D02 YN77, Ireland
- Science
Foundation Ireland (SFI) Centre for Research in Medical Devices (CURAM),
RCSI, Dublin D02 YN77, Ireland
- AMBER,
The SFI Advanced Materials and Bioengineering Research Centre, RCSI, Dublin D02 YN77, Ireland
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4
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Lim S, Kim JA, Chun YH, Lee HJ. Hyaluronic acid hydrogel for controlled release of heterobifunctional photocleavable linker-modified epidermal growth factor in wound healing. Int J Biol Macromol 2023; 253:126603. [PMID: 37652341 DOI: 10.1016/j.ijbiomac.2023.126603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/22/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
Peptide and protein drugs, such as epidermal growth factor (EGF), face challenges related to stability and bioavailability. Recently, hydrogels have emerged as promising carriers for these drugs. This study focuses on a light-responsive hydrogel-based drug delivery system for the controlled release of EGF in wound healing. A photocleavable (PC) linker was designed to bind EGF to the hydrogel matrix, enabling UV light-triggered release of EGF. Hydrogels have evolved from drug reservoirs to controlled release systems, and the o-nitrobenzyl-based PC linkers offer selective cleavage under UV irradiation. We used a thiol-ene crosslinked hyaluronic acid (HA) hydrogel matrix modified with the PC-linked EGF. The release of EGF from the HA hydrogel under UV irradiation was evaluated, along with in vitro and in vivo experiments to assess the controlled effect of EGF on wound healing. Our results indicate that the successful development of a light-responsive hydrogel-based system for precise temporal release of EGF enhances the therapeutic potential in wound healing. This study highlights the importance of incorporating stimulus-responsive functionalities into hydrogel-based drug delivery systems to optimize protein drugs in clinical applications.
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Affiliation(s)
- Saebin Lim
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si, Gyeonggi-do 13120, Republic of Korea
| | - Ji An Kim
- Department of Pediatrics, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Republic of Korea
| | - Yoon Hong Chun
- Department of Pediatrics, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Republic of Korea.
| | - Hyun Jong Lee
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si, Gyeonggi-do 13120, Republic of Korea.
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5
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Dong JX, Zhang SM, Li YL, Zhang X, Fan YJ, Su M, Wang ZG, Li H, Shen SG, Gao ZF, Wei Q, Xia F. Photocontrollable DNA Walker-Based Molecular Circuit for the Tunable Detection of MicroRNA-21 Using Metal-Organic Frameworks as Label-Free Fluorescence Tags. Anal Chem 2023; 95:16744-16753. [PMID: 37929302 DOI: 10.1021/acs.analchem.3c03913] [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: 11/07/2023]
Abstract
Tunable detection of microRNA is crucial to meet the desired demand for sample species with varying concentrations in clinical settings. Herein, we present a DNA walker-based molecular circuit for the detection of miRNA-21 (miR-21) with tunable dynamic ranges and sensitivity levels ranging from fM to pM. The phosphate-activated fluorescence of UiO-66-NH2 metal-organic framework nanoparticles was used as label-free fluorescence tags due to their competitive coordination effect with the Zr atom, which significantly inhibited the ligand-to-metal charge transfer. To achieve a tunable detection performance for miR-21, the ultraviolet sensitive o-nitrobenzyl was induced as a photocleavable linker, which was inserted at various sites between the loop and the stem of the hairpin probe to regulate the DNA strand displacement reaction. The dynamic range can be precisely regulated from 700- to 67,000-fold with tunable limits of detection ranging from 2.5 fM to 36.7 pM. Impressively, a Boolean logic tree and complex molecular circuit were constructed for logic computation and cancer diagnosis in clinical blood samples. This intelligent biosensing method presents a powerful solution for converting complex biosensing systems into actionable healthcare decisions and will facilitate early disease diagnosis.
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Affiliation(s)
- Jiang Xue Dong
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Sai Mei Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Yan Lei Li
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xu Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Ya Jie Fan
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Ming Su
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Zhen Guang Wang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Hui Li
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding 071002, P. R. China
| | - Shi Gang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Zhong Feng Gao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
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6
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Li J, Liang P, Gao L, Lu H, Dong Y, Zhang J. o-Nitrobenzyl-Based Caged exo-16,17-Dihydro-gibberellin A5-13-acetate for Photocontrolled Release of Plant Growth Regulators. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16533-16541. [PMID: 37878916 DOI: 10.1021/acs.jafc.3c05259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Caged plant growth regulators (caged PGRs) that release bioactive molecules under irradiation are critical in enhancing the efficacy and mitigating the negative environmental effects of PGRs. The synthetically derived plant growth inhibitor exo-16,17-dihydro-gibberellin A5-13-acetate (DHGA5) regulates the development and stress resilience of plants. We report here the conception of novel caged DHGA5 derivatives wherein the photoremovable protecting groups (PRPGs) serve not only to enable light-controlled release but also to protect the carboxyl group during chemical synthesis. Three o-nitrobenzyl-based caged DHGA5 derivatives with different substituents on the nitrobenzyl moiety were obtained and evaluated for their properties in vitro and in vivo. The photolysis half-life values of caged DHGA5 derivatives 7a, 7b, and 7c under a UV lamp were 15.6 h, 1.2 h, and 28.2 h, respectively. Experiments in vivo showed that 0.2 mM of the caged compounds significantly inhibited the growth of the model plant Arabidopsis thaliana and important crop rice in a precise photoactivated form.
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Affiliation(s)
- Jingmin Li
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Peibo Liang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Linying Gao
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Huizhe Lu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Yanhong Dong
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Jianjun Zhang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
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7
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Lee H, Hong HJ, Ahn S, Kim D, Kang SH, Cho K, Koh WG. One-Pot Synthesis of Double-Network PEG/Collagen Hydrogel for Enhanced Adipogenic Differentiation and Retrieval of Adipose-Derived Stem Cells. Polymers (Basel) 2023; 15:polym15071777. [PMID: 37050391 PMCID: PMC10098799 DOI: 10.3390/polym15071777] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 04/05/2023] Open
Abstract
Hydrogels are widely used in stem cell therapy due to their extensive tunability and resemblance to the extracellular matrix (ECM), which has a three-dimensional (3D) structure. These features enable various applications that enhance stem cell maintenance and function. However, fast and simple hydrogel fabrication methods are desirable for stem cells for efficient encapsulation and to reduce adverse effects on the cells. In this study, we present a one-pot double-crosslinked hydrogel consisting of polyethylene glycol (PEG) and collagen, which can be prepared without the multi-step sequential synthesis of each network, by using bio-orthogonal chemistry. To enhance the adipogenic differentiation efficiency of adipose-derived stem cells (ADSCs), we added degradable components within the hydrogel to regulate matrix stiffness through cell-mediated degradation. Bio-orthogonal reactions used for hydrogel gelation allow rapid gel formation for efficient cell encapsulation without toxic by-products. Furthermore, the hybrid network of synthetic (PEG) and natural (collagen) components demonstrated adequate mechanical strength and higher cell adhesiveness. Therefore, ADSCs grown within this hybrid hydrogel proliferated and functioned better than those grown in the single-crosslinked hydrogel. The degradable elements further improved adipogenesis in ADSCs with dynamic changes in modulus during culture and enabled the retrieval of differentiated cells for potential future applications.
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Affiliation(s)
- Hwajung Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hye Jin Hong
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sujeong Ahn
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Dohyun Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Shin Hyuk Kang
- Departments of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul 06973, Republic of Korea
| | - Kanghee Cho
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
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8
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Jia S, Sletten EM. Spatiotemporal Control of Biology: Synthetic Photochemistry Toolbox with Far-Red and Near-Infrared Light. ACS Chem Biol 2022; 17:3255-3269. [PMID: 34516095 PMCID: PMC8918031 DOI: 10.1021/acschembio.1c00518] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The complex network of naturally occurring biological pathways motivates the development of new synthetic molecules to perturb and/or detect these processes for fundamental research and clinical applications. In this context, photochemical tools have emerged as an approach to control the activity of drug or probe molecules at high temporal and spatial resolutions. Traditional photochemical tools, particularly photolabile protecting groups (photocages) and photoswitches, rely on high-energy UV light that is only applicable to cells or transparent model animals. More recently, such designs have evolved into the visible and near-infrared regions with deeper tissue penetration, enabling photocontrol to study biology in tissue and model animal contexts. This Review highlights recent developments in synthetic far-red and near-infrared photocages and photoswitches and their current and potential applications at the interface of chemistry and biology.
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Affiliation(s)
- Shang Jia
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Ellen M Sletten
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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9
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González-Montiel S, Velázquez-Jiménez R, Segovia-Pérez R, Fragoso-Soto W, Martínez-Otero D, Andrade-López N, Salazar-Pereda V, Cruz-Borbolla J. η3-allyl-Pd(II) complexes of 2-, 3- and 4-pyridylmethyl-coumarin esters. TRANSIT METAL CHEM 2022. [DOI: 10.1007/s11243-022-00518-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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10
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Development of Photoremovable Linkers as a Novel Strategy to Improve the Pharmacokinetics of Drug Conjugates and Their Potential Application in Antibody–Drug Conjugates for Cancer Therapy. Pharmaceuticals (Basel) 2022; 15:ph15060655. [PMID: 35745573 PMCID: PMC9230074 DOI: 10.3390/ph15060655] [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] [Received: 04/17/2022] [Revised: 05/19/2022] [Accepted: 05/22/2022] [Indexed: 02/04/2023] Open
Abstract
Although there have been extensive research and progress on the discovery of anticancer drug over the years, the application of these drugs as stand-alone therapy has been limited by their off-target toxicities, poor pharmacokinetic properties, and low therapeutic index. Targeted drug delivery, especially drug conjugate, has been recognized as a technology that can bring forth a new generation of therapeutics with improved efficacy and reduced side effects for cancer treatment. The linker in a drug conjugate is of essential importance because it impacts the circulation time of the conjugate and the release of the drug for full activity at the target site. Recently, the light-triggered linker has attracted a lot of attention due to its spatiotemporal controllability and attractive prospects of improving the overall pharmacokinetics of the conjugate. In this paper, the latest developments of UV- and IR-triggered linkers and their application and potential in drug conjugate development are reviewed. Some of the most-well-researched photoresponsive structural moieties, such as UV-triggered coumarin, ortho-nitrobenzyl group (ONB), thioacetal ortho-nitrobenzaldehyde (TNB), photocaged C40-oxidized abasic site (PC4AP), and IR-triggered cyanine and BODIPY, are included for discussion. These photoremovable linkers show better physical and chemical stabilities and can undergo rapid cleavage upon irradiation. Very importantly, the drug conjugates containing these linkers exhibit reduced off-target toxicity and overall better pharmacokinetic properties. The progress on photoactive antibody–drug conjugates, such as antibody–drug conjugates (ADC) and antibody–photoabsorber conjugate (APC), as precision medicine in clinical cancer treatment is highlighted.
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11
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Sun H, Yee SS, Gobeze HB, He R, Martinez D, Risinger AL, Schanze KS. One- and Two-Photon Activated Release of Oxaliplatin from a Pt(IV)-Functionalized Poly(phenylene ethynylene). ACS APPLIED MATERIALS & INTERFACES 2022; 14:15996-16005. [PMID: 35360898 DOI: 10.1021/acsami.2c00859] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report a water-soluble poly(phenylene ethynylene) (PPE-Pt(IV)) that is functionalized with oxidized oxaliplatin Pt(IV) units and its use for photoactivated chemotherapy. The photoactivation strategy is based on photoinduced electron transfer from the PPE backbone to oxaliplatin Pt(IV) as an electron acceptor; this process triggers the release of oxaliplatin, which is a clinically used anticancer drug. Mechanistic studies carried out using steady-state and time-resolved fluorescence spectroscopy coupled with picosecond-nanosecond transient absorption support the hypothesis that electron transfer triggers the drug release. Photoactivation is effective, producing oxaliplatin with a good chemical yield in less than 1 h of photolysis (400 nm, 5 mW cm-2). Photorelease of oxaliplatin from PPE-Pt(IV) can also be effected with two-photon excitation by using 100 fs pulsed light at 725 nm. Cytotoxicity studies using SK-OV-3 human ovarian cancer cells demonstrate that without photoactivation PPE-Pt(IV) is not cytotoxic at concentrations up to 10 μM in polymer repeating unit (PRU) concentration. However, following a short period of 460 nm irradiation, oxaliplatin is released from PPE-Pt(IV), resulting in cytotoxicity at concentrations as low as 2.5 μM PRU.
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Affiliation(s)
- Han Sun
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Samantha S Yee
- Department of Pharmacology, University of Texas Health Science Center, San Antonio, Texas 78229, United States
| | - Habtom B Gobeze
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Ru He
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Daniel Martinez
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - April L Risinger
- Department of Pharmacology, University of Texas Health Science Center, San Antonio, Texas 78229, United States
| | - Kirk S Schanze
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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12
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Tigreros A, Portilla J. Ecological and economic effort analysis in molecular sensor development used for optical detection of cyanide ions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200249] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexis Tigreros
- Universidad de Los Andes Chemistry , Carrera 1 No. 18A-10 111711 Bogotá DC COLOMBIA
| | - Jaime Portilla
- Universidad de los Andes Bogotá D. C. Cra. 1 No. 18 A 12, Edificio Q, Of. 830Call 95 No. 71 - 11, Apto 204-1 111711 Bogotá COLOMBIA
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13
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Taylor JM, Luan H, Lewis JA, Rogers JA, Nuzzo RG, Braun PV. Biomimetic and Biologically Compliant Soft Architectures via 3D and 4D Assembly Methods: A Perspective. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108391. [PMID: 35233865 DOI: 10.1002/adma.202108391] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/08/2022] [Indexed: 06/14/2023]
Abstract
Recent progress in soft material chemistry and enabling methods of 3D and 4D fabrication-emerging programmable material designs and associated assembly methods for the construction of complex functional structures-is highlighted. The underlying advances in this science allow the creation of soft material architectures with properties and shapes that programmably vary with time. The ability to control composition from the molecular to the macroscale is highlighted-most notably through examples that focus on biomimetic and biologically compliant soft materials. Such advances, when coupled with the ability to program material structure and properties across multiple scales via microfabrication, 3D printing, or other assembly techniques, give rise to responsive (4D) architectures. The challenges and prospects for progress in this emerging field in terms of its capacities for integrating chemistry, form, and function are described in the context of exemplary soft material systems demonstrating important but heretofore difficult-to-realize biomimetic and biologically compliant behaviors.
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Affiliation(s)
- Jay M Taylor
- Department of Materials Science and Engineering, Materials Research Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, 104 South Goodwin Ave., Urbana, IL, 61801, USA
| | - Haiwen Luan
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Jennifer A Lewis
- John A. Paulson School of Engineering and Applied Sciences Wyss Institute for Biologically Inspired Engineering, Harvard University, 29 Oxford Street, Cambridge, MA, 02138, USA
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Departments of Materials Science and Engineering, Biomedical Engineering, Neurological Surgery, Chemistry, Mechanical Engineering, Electrical and Computer Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Ralph G Nuzzo
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 S Mathews Avenue, Urbana, IL, 61801, USA
- Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Drottning Kristinasväg 51, Stockholm, 10044, Sweden
| | - Paul V Braun
- Department of Materials Science and Engineering, Materials Research Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, 104 South Goodwin Ave., Urbana, IL, 61801, USA
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 S Mathews Avenue, Urbana, IL, 61801, USA
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14
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Liu C, Zhou H, Yu S, Chen H, Wang N, Yao W, Lu AH, Qiao W. Sensitive and precise visually guided drug delivery nanoplatform with dual activation of pH and light. Acta Biomater 2022; 141:374-387. [PMID: 34971788 DOI: 10.1016/j.actbio.2021.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 11/26/2022]
Abstract
Controlled-release drug carriers in cancer therapy are the most ideal way to reduce toxicity and improve drug efficacy. Since light stimulation is precise and operable, most multi-stimulation response carriers utilize phototherapy to enhance release efficiency. However, phototoxicity severely limits the application of phototherapy. Herein, we designed and synthesized a Cou-ONB lipid with sensitive fluorescence feedback and multi-stimulus response. COBL liposomes prepared from Cou-ONB lipids will passively aggregate at the tumor and guide phototherapy by fluorescence. More importantly, it can reflect the drug release effect in vivo through its own sensitive fluorescence changes, further enabling precise phototherapy and reducing phototoxicity. In this paper, the multi-stimulus superimposed response and precise fluorescence-guided performance of COBL liposomes were investigated at the molecular, liposome, cellular, and animal levels. Finally, tumor treatment experiments showed that the d-COBL-UV group had the best tumor suppression effect (5.3-fold). This paper highlights a real-time fluorescence-guided multi-stimulus superposition strategy and provides a design idea to precisely implement exogenous stimuli by displaying the degree of drug release, aiming to achieve less toxic and more efficient cancer therapy through timely and precise multi-stimulation. STATEMENT OF SIGNIFICANCE: Multi-stimulus responsive drug carriers have been extensively developed in the last decade. Visual guidance is an important tool to achieve precision medicine and precise control of drug release. However, the available visualization materials are more aimed at directing stimulation at the optimal moment. There is little discussion on when to stop exogenous stimulation and how to minimize the damage of stimulation to the patient. Here, we provide a Cou-ONB lipid that not only responds to multiple stimuli, but also provides sensitive feedback on its own dissociation with a fluorescent signal so that physicians can adjust exogenous stimuli in a timely manner. This paper provides insights to facilitate precision drug delivery systems, providing viable design ideas for precise, efficient, and less toxic cancer therapies.
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Sun F, Wang Y, Wang Q, Wang X, Yao P, Feng W, Yuan Q, Qi X, Chen S, Pu W, Huang R, Dai Q, Lv J, Wang Q, Shen W, Xia P, Zhang D. Self-Illuminating Triggered Release of Therapeutics from Photocleavable Nanoprodrug for the Targeted Treatment of Breast Cancer. ACS APPLIED MATERIALS & INTERFACES 2022; 14:8766-8781. [PMID: 35166116 DOI: 10.1021/acsami.1c21665] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photocleavable biomaterials and bioconjugates have been widely researched for tissue engineering, cell culture, and therapeutics delivery. However, most in vivo applications of these materials or conjugates require external irradiation, and some of the light sources used such as ultraviolet (UV) light have poor tissue penetration. To address these key limitations, we synthesized a photocleavable nanoprodrug using luminol (a luminescent donor), chlorambucil (CHL, i.e., an antitumor drug with a photocleavable linker), and polyethylene glycol-folic acid conjugates (a targeted moiety) loaded onto polyamidoamine (PAMAM). The synthesized nanoprodrug can smartly release its payloads through photocleavage of photoresponsive linker by UV light, which was produced in situ by reacting luminol with pathological reactive oxygen species (ROS). The luminescence performance and absorption spectrum of this nanoprodrug was characterized in detail. In vitro cellular assays verified that the nanoprodrugs could be efficiently internalized by 4T1 and MDA-MB-231 cells, and the CHL released from the nanoprodrugs could distinctly decrease cell viability through the damage of DNA in cells. In vivo animal experiments demonstrated that the nanoprodrugs were mainly accumulated at tumor sites, and the antitumor drug CHL could be smartly released from the nanoprodrugs through cleavage of photosensitive linkers at a high level of ROS. The released CHL significantly inhibited the growth of tumors without any obvious adverse effects. Our results provide a practicable strategy to expand the in vivo application of photocleavable biomaterials and bioconjugates.
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Affiliation(s)
- Fengjun Sun
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yu Wang
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qianmei Wang
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
- Department of Chemistry, College of Basic Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Xiaowen Wang
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Pu Yao
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Wei Feng
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qian Yuan
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Xiaowei Qi
- Department of Breast and Thyroid Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Sheng Chen
- Department of Pediatrics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Wendan Pu
- Department of Chemistry, College of Basic Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Rong Huang
- Department of Chemistry, College of Basic Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qing Dai
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Jun Lv
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qian Wang
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Wenhao Shen
- Department of Urology, Southwest Hospital, Third Military Medical University (Amy Medical University), Chongqing 400038, China
| | - Peiyuan Xia
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Dinglin Zhang
- Department of Chemistry, College of Basic Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, China
- Department of Urology, Southwest Hospital, Third Military Medical University (Amy Medical University), Chongqing 400038, China
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16
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Shahi S, Roghani-Mamaqani H, Talebi S, Mardani H. Stimuli-responsive destructible polymeric hydrogels based on irreversible covalent bond dissociation. Polym Chem 2022. [DOI: 10.1039/d1py01066b] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Covalently crosslinked stimuli-destructible hydrogels with the ability of irreversible bond dissociation have attracted great attentions due to their biodegradability, stability against hydrolysis, and controlled solubility upon insertion of desired triggers.
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Affiliation(s)
- Sina Shahi
- Faculty of Polymer Engineering, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
| | - Hossein Roghani-Mamaqani
- Faculty of Polymer Engineering, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
| | - Saeid Talebi
- Faculty of Polymer Engineering, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
| | - Hanieh Mardani
- Faculty of Polymer Engineering, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
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17
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Mena-Giraldo P, Orozco J. Polymeric Micro/Nanocarriers and Motors for Cargo Transport and Phototriggered Delivery. Polymers (Basel) 2021; 13:3920. [PMID: 34833219 PMCID: PMC8621231 DOI: 10.3390/polym13223920] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 02/07/2023] Open
Abstract
Smart polymer-based micro/nanoassemblies have emerged as a promising alternative for transporting and delivering a myriad of cargo. Cargo encapsulation into (or linked to) polymeric micro/nanocarrier (PC) strategies may help to conserve cargo activity and functionality when interacting with its surroundings in its journey to the target. PCs for cargo phototriggering allow for excellent spatiotemporal control via irradiation as an external stimulus, thus regulating the delivery kinetics of cargo and potentially increasing its therapeutic effect. Micromotors based on PCs offer an accelerated cargo-medium interaction for biomedical, environmental, and many other applications. This review collects the recent achievements in PC development based on nanomicelles, nanospheres, and nanopolymersomes, among others, with enhanced properties to increase cargo protection and cargo release efficiency triggered by ultraviolet (UV) and near-infrared (NIR) irradiation, including light-stimulated polymeric micromotors for propulsion, cargo transport, biosensing, and photo-thermal therapy. We emphasize the challenges of positioning PCs as drug delivery systems, as well as the outstanding opportunities of light-stimulated polymeric micromotors for practical applications.
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Affiliation(s)
| | - Jahir Orozco
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 # 52-20, Medellin 050010, Colombia;
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18
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Moreno VM, Meroño C, Baeza A, Usategui A, Ortiz-Romero PL, Pablos JL, Vallet-Regí M. UVA-Degradable Collagenase Nanocapsules as a Potential Treatment for Fibrotic Diseases. Pharmaceutics 2021; 13:499. [PMID: 33917543 PMCID: PMC8067494 DOI: 10.3390/pharmaceutics13040499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 11/16/2022] Open
Abstract
Peyronie and Dupuytren are pathologies characterized by the appearance of localized fibrotic lesions in an organ. These disorders originate from an excessive production of collagen in the tissue provoking dysfunction and functional limitations to the patients. Local administration of collagenase is the most used treatment for these fibrotic-type diseases, but a high lability of the enzyme limits its therapeutic efficacy. Herein, we present a novel methodology for the preparation of collagenase nanocapsules without affecting its enzymatic activity and capable of releasing the enzyme in response to an ultraviolet A (UVA) light stimulus. Polymeric coating around collagenase was formed by free-radical polymerization of acrylamide-type monomers. Their degradation capacity under UVA irradiation was provided by incorporating a novel photocleavable acrylamide-type crosslinker within the polymeric framework. This property allowed collagenase release to be triggered in a controlled manner by employing an easily focused stimulus. Additionally, UVA irradiation presents considerable benefits by itself due to its capacity to induce collagenase production in situ. An expected synergistic effect of collagenase nanocapsules in conjunction with UVA effect may present a promising treatment for these fibrotic diseases.
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Affiliation(s)
- Víctor M. Moreno
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria, Hospital 12 de Octubre i+12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28029 Madrid, Spain
| | - Carolina Meroño
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), Universidad Complutense de Madrid, Avenida Córdoba s/n, 28041 Madrid, Spain; (C.M.); (A.U.); (J.L.P.)
| | - Alejandro Baeza
- Departamento de Materiales y Producción Aeroespacial, ETSI Aeronáutica y del Espacio, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Alicia Usategui
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), Universidad Complutense de Madrid, Avenida Córdoba s/n, 28041 Madrid, Spain; (C.M.); (A.U.); (J.L.P.)
| | - Pablo L. Ortiz-Romero
- Servicio de Dermatología, Hospital 12 de Octubre, Instituto (i+12 Medical School), Universidad Complutense de Madrid, Avenida Córdoba s/n, 28041 Madrid, Spain;
| | - José L. Pablos
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), Universidad Complutense de Madrid, Avenida Córdoba s/n, 28041 Madrid, Spain; (C.M.); (A.U.); (J.L.P.)
| | - María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria, Hospital 12 de Octubre i+12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28029 Madrid, Spain
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19
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Carneiro A, Matos MJ, Uriarte E, Santana L. Trending Topics on Coumarin and Its Derivatives in 2020. Molecules 2021; 26:501. [PMID: 33477785 PMCID: PMC7832358 DOI: 10.3390/molecules26020501] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 12/24/2022] Open
Abstract
Coumarins are naturally occurring molecules with a versatile range of activities. Their structural and physicochemical characteristics make them a privileged scaffold in medicinal chemistry and chemical biology. Many research articles and reviews compile information on this important family of compounds. In this overview, the most recent research papers and reviews from 2020 are organized and analyzed, and a discussion on these data is included. Multiple electronic databases were scanned, including SciFinder, Mendeley, and PubMed, the latter being the main source of information. Particular attention was paid to the potential of coumarins as an important scaffold in drug design, as well as fluorescent probes for decaging of prodrugs, metal detection, and diagnostic purposes. Herein we do an analysis of the trending topics related to coumarin and its derivatives in the broad field of drug discovery.
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Affiliation(s)
- Aitor Carneiro
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.C.); (M.J.M.); (E.U.)
| | - Maria João Matos
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.C.); (M.J.M.); (E.U.)
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua Campo Alegre 687, 4169-007 Porto, Portugal
| | - Eugenio Uriarte
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.C.); (M.J.M.); (E.U.)
- Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, 7500912 Santiago, Chile
| | - Lourdes Santana
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.C.); (M.J.M.); (E.U.)
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20
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Hou W, Liu R, Bi S, He Q, Wang H, Gu J. Photo-Responsive Polymersomes as Drug Delivery System for Potential Medical Applications. Molecules 2020; 25:E5147. [PMID: 33167426 PMCID: PMC7663911 DOI: 10.3390/molecules25215147] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Accepted: 11/02/2020] [Indexed: 02/05/2023] Open
Abstract
Due to a strong retardation effect of o-nitrobenzyl ester on polymerization, it is still a great challenge to prepare amphiphilic block copolymers for polymersomes with a o-nitrobenzyl ester-based hydrophobic block. Herein, we present one such solution to prepare amphiphilic block copolymers with pure poly (o-nitrobenzyl acrylate) (PNBA) as the hydrophobic block and poly (N,N'-dimethylacrylamide) (PDMA) as the hydrophilic block using bulk reversible addition-fragmentation chain transfer (RAFT) polymerization of o-nitrobenzyl acrylate using a PDMA macro-RAFT agent. The developed amphiphilic block copolymers have a suitable hydrophobic/hydrophilic ratio and can self-assemble into photoresponsive polymersomes for co-loading hydrophobic and hydrophilic cargos into hydrophobic membranes and aqueous compartments of the polymersomes. The polymersomes demonstrate a clear photo-responsive characteristic. Exposure to light irradiation at 365 nm can trigger a photocleavage reaction of o-nitrobenzyl groups, which results in dissociation of the polymersomes with simultaneous co-release of hydrophilic and hydrophobic cargoes on demand. Therefore, these polymersomes have great potential as a smart drug delivery nanocarrier for controllable loading and releasing of hydrophilic and hydrophobic drug molecules. Moreover, taking advantage of the conditional releasing of hydrophilic and hydrophobic drugs, the drug delivery system has potential use in medical applications such as cancer therapy.
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Affiliation(s)
- Wanting Hou
- Department of Medical Oncology Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China;
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610000, Sichuan, China
| | - Ruiqi Liu
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China; (R.L.); (S.B.)
| | - Siwei Bi
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China; (R.L.); (S.B.)
| | - Qian He
- Department of Emergency, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China;
| | - Haibo Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610000, Sichuan, China
| | - Jun Gu
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610000, Sichuan, China
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