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Qi R, Mundy E, Amsden BG. Visible light degradable micelles for intraocular corticosteroid delivery. J Mater Chem B 2024; 12:2099-2113. [PMID: 38288582 DOI: 10.1039/d3tb02793g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Visible light responsive micellar drug delivery formulations are of notable interest for the treatment of ocular diseases, as their successful development would enable controlled drug release at the back of the eye, improving efficacy and reducing side-effects when compared to existing approaches. In this work, an aliphatic polycarbonate-based visible light responsive micelle formulation based on mPEG-b-poly(5-hydroxy-trimethylene carbonate) (PHTMC) was prepared wherein the pendant hydroxyl groups of the PHTMC repeating units were protected by blue light-labile [7-(diethylamino)coumarin-4-yl]methyl (DEACM). The photo-labile DEACM provided a photo-triggered release profile, as, upon the removal of these protecting groups by photo-irradiation, the micelles underwent structural disruption, leading to the release of the payload. The removal of DEACM also deprotected the pendant hydroxyl groups of PHTMC, leading to PHTMC backbone degradation via intramolecular cyclization.
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Affiliation(s)
- Ronghui Qi
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada, K7L 3N6.
| | - Emily Mundy
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada, K7L 3N6.
| | - Brian G Amsden
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada, K7L 3N6.
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2
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Chanthaset N, Maehara A, Ajiro H. Particles and film preparation of ester-free type poly(trimethylene carbonate) derivatives bearing aromatic groups initiated with hydrophilic initiators. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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3
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de Prinse M, Qi R, Amsden BG. Polymer micelles for the protection and delivery of specialized pro-resolving mediators. Eur J Pharm Biopharm 2023; 184:159-169. [PMID: 36720371 DOI: 10.1016/j.ejpb.2023.01.020] [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: 10/07/2022] [Revised: 01/18/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023]
Abstract
Specialized pro-resolving mediators (SPMs) are being considered for the treatment of chronic inflammatory diseases. However, these polyunsaturated fatty acids are prone to oxidation and as a result have a short biological half-life. It was reasoned that a micelle formulation would provide sustained delivery of SPMs while providing protection from oxidation. Thus, micelle formulations were prepared with poly(ethylene glycol) (PEG) as the hydrophilic block and poly(trimethylene carbonate) (PT) containing unsaturated pendant groups, specifically benzyloxy (BT) and sorbate (ST) groups, as the hydrophobic block. The potential of these micelles was assessed using linoleic acid as a model SPM. Loading into a micelle core reduced the extent of oxidation of the model SPM and a sustained release of non-oxidized model drug was achieved for up to 20 days in vitro from the PEG-P(T-BT) micelles. These micelles were also non-cytotoxic over a wide concentration range, demonstrating the potential of this formulation for effective SPM release in vivo.
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Affiliation(s)
- Mitchell de Prinse
- Department of Chemical Engineering and Centre for Health Innovation Queen's University, Kingston, ON K7L 3N6, Canada
| | - Ronghui Qi
- Department of Chemical Engineering and Centre for Health Innovation Queen's University, Kingston, ON K7L 3N6, Canada
| | - Brian G Amsden
- Department of Chemical Engineering and Centre for Health Innovation Queen's University, Kingston, ON K7L 3N6, Canada
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4
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Czysch C, Dinh T, Fröder Y, Bixenmann L, Komforth P, Balint A, Räder HJ, Naumann S, Nuhn L. Nontoxic N-Heterocyclic Olefin Catalyst Systems for Well-Defined Polymerization of Biocompatible Aliphatic Polycarbonates. ACS POLYMERS AU 2022; 2:371-379. [PMID: 36855582 PMCID: PMC9955374 DOI: 10.1021/acspolymersau.2c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 11/28/2022]
Abstract
Herein, N-heterocyclic olefins (NHOs) are utilized as catalysts for the ring-opening polymerization (ROP) of functional aliphatic carbonates. This emerging class of catalysts provides high reactivity and rapid conversion. Aiming for the polymerization of monomers with high side chain functionality, six-membered carbonates derived from 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) served as model compounds. Tuning the reactivity of NHO from predominant side chain transesterification at room temperature toward ring-opening at lowered temperatures (-40 °C) enables controlled ROP. These refined conditions give narrowly distributed polymers of the hydrophobic carbonate 5-methyl-5-benzyloxycarbonyl-1,3-dioxan-2-one (MTC-OBn) (Đ < 1.30) at (pseudo)first-order kinetic polymerization progression. End group definition of these polymers demonstrated by mass spectrometry underlines the absence of side reactions. For the active ester monomer 5-methyl-5-pentafluorophenyloxycarbonyl-1,3-dioxane-2-one (MTC-PFP) with elevated side chain reactivity, a cocatalysis system consisting of NHO and the Lewis acid magnesium iodide is required to retune the reactivity from side chains toward controlled ROP. Excellent definition of the products (Đ < 1.30) and mass spectrometry data demonstrate the feasibility of this cocatalyst approach, since MTC-PFP has thus far only been polymerized successfully using acidic catalysts with moderate control. The broad feasibility of our findings was further demonstrated by the synthesis of block copolymers for bioapplications and their successful nanoparticular assembly. High tolerability of NHO in vitro with concentrations ranging up to 400 μM (equivalent to 0.056 mg/mL) further emphasize the suitability as a catalyst for the synthesis of bioapplicable materials. The polycarbonate block copolymer mPEG44-b-poly(MTC-OBn) enables physical entrapment of hydrophobic dyes in sub-20 nm micelles, whereas the active ester block copolymer mPEG44-b-poly(MTC-PFP) is postfunctionalizable by covalent dye attachment. Both block copolymers thereby serve as platforms for physical or covalent modification of nanocarriers for drug delivery.
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Affiliation(s)
- Christian Czysch
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Thi Dinh
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Yannick Fröder
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Leon Bixenmann
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Patric Komforth
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Alexander Balint
- Institute
of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Hans-Joachim Räder
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Stefan Naumann
- Institute
of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Lutz Nuhn
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany,Chair
of Macromolecular Chemistry, Julius-Maximilians-Universität
Würzburg, Röntgenring
11, 97070 Würzburg, Germany,
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5
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Amsden B. In Vivo Degradation Mechanisms of Aliphatic Polycarbonates and Functionalized Aliphatic Polycarbonates. Macromol Biosci 2021; 21:e2100085. [PMID: 33893715 DOI: 10.1002/mabi.202100085] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/29/2021] [Indexed: 11/06/2022]
Abstract
Aliphatic polycarbonates (APCs) have been studied for decades but have not been as utilized as aliphatic polyesters in biomaterial applications such as drug delivery and tissue engineering. With the recognition that functionalized aliphatic polymers can be readily synthesized, increased attention is being paid to these materials. A frequently provided reason for utilizing these polymers is that they degrade to form diols and carbon dioxide. However, depending on the structure and molecular weight of the APC, degradation may not occur. In this review, the mechanisms by which APCs and functionalized APCs have been found to degrade in vivo are examined with the objective of providing guidance in the continued development of these polymers as biomaterials.
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Affiliation(s)
- Brian Amsden
- Department of Chemical Engineering, Queen's University, Kingston, K7L 3N6, Canada
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6
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Mohajeri S, Amsden BG. In Vivo Degradation Mechanism and Biocompatibility of a Biodegradable Aliphatic Polycarbonate: Poly(Trimethylene Carbonate- co-5-Hydroxy Trimethylene Carbonate). ACS APPLIED BIO MATERIALS 2021; 4:3686-3696. [PMID: 35014453 DOI: 10.1021/acsabm.1c00160] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A recently developed viscous liquid aliphatic polycarbonate, poly(trimethylene carbonate-co-5-hydroxy trimethylene carbonate), has advantageous properties for the delivery of acid-sensitive drugs such as proteins and peptides. This copolymer degrades in vitro via an alkaline-catalyzed intramolecular cyclization reaction yielding oligo (trimethylene carbonate), glycerol, and carbon dioxide, but its in vivo degradation mechanisms are presently unknown. The in vivo degradation mechanism and tissue response to this copolymer were investigated following subcutaneous implantation in Wistar rats. The molecular weight and composition of the copolymer varied in the same manner following subcutaneous implantation as observed in vitro. These findings suggest that the copolymer also degraded in vivo principally via intramolecular cyclization. The tissue response in terms of the inflammatory zone cell density, fibrous capsule thickness, and macrophage response was intermediate to that of two clinically used biodegradable sutures, Vicryl and Monocryl, indicating that the copolymer can be considered biotolerable. Collectively, the data show that further development of this copolymer as a drug delivery material is warranted.
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Affiliation(s)
- Sara Mohajeri
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada.,Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
| | - Brian G Amsden
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada.,Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
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7
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Yu W, Maynard E, Chiaradia V, Arno MC, Dove AP. Aliphatic Polycarbonates from Cyclic Carbonate Monomers and Their Application as Biomaterials. Chem Rev 2021; 121:10865-10907. [DOI: 10.1021/acs.chemrev.0c00883] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wei Yu
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Edward Maynard
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Viviane Chiaradia
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Maria C. Arno
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Andrew P. Dove
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
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8
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Montagna V, Takahashi J, Tsai MY, Ota T, Zivic N, Kawaguchi S, Kato T, Tanaka M, Sardon H, Fukushima K. Methoxy-Functionalized Glycerol-Based Aliphatic Polycarbonate: Organocatalytic Synthesis, Blood Compatibility, and Hydrolytic Property. ACS Biomater Sci Eng 2021; 7:472-481. [DOI: 10.1021/acsbiomaterials.0c01460] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Valentina Montagna
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Junko Takahashi
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Meng-Yu Tsai
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Takayuki Ota
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Nicolas Zivic
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - Seigou Kawaguchi
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Haritz Sardon
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - Kazuki Fukushima
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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9
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Preparation of fluorophore-tagged polymeric drug delivery vehicles with multiple biological stimuli-triggered drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110358. [DOI: 10.1016/j.msec.2019.110358] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 10/07/2019] [Accepted: 10/21/2019] [Indexed: 02/04/2023]
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10
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Mohajeri S, Chen F, de Prinse M, Phung T, Burke-Kleinman J, Maurice DH, Amsden BG. Liquid Degradable Poly(trimethylene-carbonate-co-5-hydroxy-trimethylene carbonate): An Injectable Drug Delivery Vehicle for Acid-Sensitive Drugs. Mol Pharm 2020; 17:1363-1376. [DOI: 10.1021/acs.molpharmaceut.0c00064] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sara Mohajeri
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada
- Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
| | - Fei Chen
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada
- Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
- Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Mitchell de Prinse
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada
- Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
| | - Ta Phung
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada
- Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
| | - Jonah Burke-Kleinman
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston K7L 3N6, Canada
| | - Donald H. Maurice
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston K7L 3N6, Canada
| | - Brian G. Amsden
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada
- Human Mobility Research Centre, Kingston General Hospital, Kingston, Ontario K7L 2V7, Canada
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11
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Tapia JB, Haines J, Yapor JP, Reynolds MM. Identification of the degradation products of a crosslinked polyester using LC-MS. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.108948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Steinman NY, Domb AJ. Injectable Pasty Biodegradable Polyesters Derived from Castor Oil and Hydroxyl-Acid Lactones. J Pharmacol Exp Ther 2019; 370:736-741. [DOI: 10.1124/jpet.119.259077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 05/14/2019] [Indexed: 12/17/2022] Open
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