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Du J, Han S, Zhou H, Wang J, Wang F, Zhao M, Song R, Li K, Zhu H, Zhang W, Yang Z, Liu Z. Targeted protein degradation combined with PET imaging reveals the role of host PD-L1 in determining anti-PD-1 therapy efficacy. Eur J Nucl Med Mol Imaging 2024:10.1007/s00259-024-06804-9. [PMID: 38910165 DOI: 10.1007/s00259-024-06804-9] [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: 03/05/2024] [Accepted: 06/17/2024] [Indexed: 06/25/2024]
Abstract
PURPOSE Immunohistochemical staining of programmed death-ligand 1 (PD-L1) in tumor biopsies acquired through invasive procedures is routinely employed in clinical practice to identify patients who are most likely to benefit from anti-programmed cell death protein 1 (PD-1) therapy. Nevertheless, PD-L1 expression is observed in various cellular subsets within tumors and their microenvironments, including tumor cells, dendritic cells, and macrophages. The impact of PD-L1 expression across these different cell types on the responsiveness to anti-PD-1 treatment is yet to be fully understood. METHODS We synthesized polymer-based lysosome-targeting chimeras (LYTACs) that incorporate both PD-L1-targeting motifs and liver cell-specific asialoglycoprotein receptor (ASGPR) recognition elements. Small-animal positron emission tomography (PET) imaging of PD-L1 expression was also conducted using a PD-L1-specific radiotracer 89Zr-αPD-L1/Fab. RESULTS The PD-L1 LYTAC platform was capable of specifically degrading PD-L1 expressed on liver cancer cells through the lysosomal degradation pathway via ASGPR without impacting the PD-L1 expression on host cells. When coupled with whole-body PD-L1 PET imaging, our studies revealed that host cell PD-L1, rather than tumor cell PD-L1, is pivotal in the antitumor response to anti-PD-1 therapy in a mouse model of liver cancer. CONCLUSION The LYTAC strategy, enhanced by PET imaging, has the potential to surmount the limitations of knockout mouse models and to provide a versatile approach for the selective degradation of target proteins in vivo. This could significantly aid in the investigation of the roles and mechanisms of protein functions associated with specific cell subsets in living subjects.
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Affiliation(s)
- Jinhong Du
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Shu Han
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Haoyi Zhou
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Jianze Wang
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Feng Wang
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals, Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Meixin Zhao
- Department of Nuclear Medicine, Peking University Third Hospital, Beijing, 100191, China
| | - Rui Song
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Kui Li
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Hua Zhu
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals, Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Weifang Zhang
- Department of Nuclear Medicine, Peking University Third Hospital, Beijing, 100191, China.
| | - Zhi Yang
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals, Peking University Cancer Hospital and Institute, Beijing, 100142, China.
| | - Zhaofei Liu
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals, Peking University Cancer Hospital and Institute, Beijing, 100142, China.
- Department of Nuclear Medicine, Peking University Third Hospital, Beijing, 100191, China.
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China.
- Peking University-Yunnan Baiyao International Medical Research Center, Beijing, 100191, China.
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2
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Komatsu S, Yamada S, Kikuchi A. Preparation of Degradable and Transformable Core-Corona-Type Particles that Control Cellular Uptake by Thermal Shape Change. ACS Biomater Sci Eng 2024; 10:897-904. [PMID: 38243792 PMCID: PMC10865287 DOI: 10.1021/acsbiomaterials.3c01554] [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] [Received: 10/23/2023] [Revised: 01/06/2024] [Accepted: 01/08/2024] [Indexed: 01/22/2024]
Abstract
Particle-cell interactions, such as cellular uptake, vary depending on the particle size, shape, and surface properties. By dynamic control of the physical properties of particles, microparticle-cell interactions can intentionally be altered. Particle degradability is also necessary for their application in the body. In this study, we aimed to prepare degradable core-corona-type particles that are deformed near the body temperature and investigated particle shape-dependent cellular uptake. Degradable and transformable particles consisting of poly(2-methylene-1,3-dioxepane)-co-poly(ethylene glycol) with three-armed poly(ε-caprolactone) (PCL) were prepared. The particle melting point was controlled by the chain length of the three-armed PCL. Particle degradation occurred under both acidic and alkaline conditions via ester group hydrolysis in the polymer backbones. The rod-shaped microparticles prepared by uniaxial stretching at a temperature above the melting point of the core showed less uptake into macrophages than did the spherical microparticles. Therefore, the degradable transformable particles enable macrophage interaction control via stimuli-regulated particle shapes and are expected to be applied as drug delivery carriers that can be decomposed and excreted from the body.
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Affiliation(s)
- Syuuhei Komatsu
- Department of Materials Science
and Technology, Tokyo University of Science, 6-3-1 Niijuku,
Katsushika, Tokyo 125-8585, Japan
| | - Satoshi Yamada
- Department of Materials Science
and Technology, Tokyo University of Science, 6-3-1 Niijuku,
Katsushika, Tokyo 125-8585, Japan
| | - Akihiko Kikuchi
- Department of Materials Science
and Technology, Tokyo University of Science, 6-3-1 Niijuku,
Katsushika, Tokyo 125-8585, Japan
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3
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Liu H, Lu HH, Alp Y, Wu R, Thayumanavan S. Structural Determinants of Stimuli-Responsiveness in Amphiphilic Macromolecular Nano-assemblies. Prog Polym Sci 2024; 148:101765. [PMID: 38476148 PMCID: PMC10927256 DOI: 10.1016/j.progpolymsci.2023.101765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Stimuli-responsive nano-assemblies from amphiphilic macromolecules could undergo controlled structural transformations and generate diverse macroscopic phenomenon under stimuli. Due to the controllable responsiveness, they have been applied for broad material and biomedical applications, such as biologics delivery, sensing, imaging, and catalysis. Understanding the mechanisms of the assembly-disassembly processes and structural determinants behind the responsive properties is fundamentally important for designing the next generation of nano-assemblies with programmable responsiveness. In this review, we focus on structural determinants of assemblies from amphiphilic macromolecules and their macromolecular level alterations under stimuli, such as the disruption of hydrophilic-lipophilic balance (HLB), depolymerization, decrosslinking, and changes of molecular packing in assemblies, which eventually lead to a series of macroscopic phenomenon for practical purposes. Applications of stimuli-responsive nano-assemblies in delivery, sensing and imaging were also summarized based on their structural features. We expect this review could provide readers an overview of the structural considerations in the design and applications of nanoassemblies and incentivize more explorations in stimuli-responsive soft matters.
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Affiliation(s)
- Hongxu Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 P. R. China
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Hung-Hsun Lu
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Yasin Alp
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Ruiling Wu
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
- Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
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4
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Wang Z, Debuigne A. Radical Polymerization of Methylene Heterocyclic Compounds: Functional Polymer Synthesis and Applications. POLYM REV 2023. [DOI: 10.1080/15583724.2023.2181819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Zhuoqun Wang
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, Chemistry Department, University of Liege, Liege, Belgium
| | - Antoine Debuigne
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, Chemistry Department, University of Liege, Liege, Belgium
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5
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Gebrie HT, Addisu KD, Darge HF, Birhan YS, Thankachan D, Tsai HC, Wu SY. pH/redox-responsive core cross-linked based prodrug micelle for enhancing micellar stability and controlling delivery of chemo drugs: An effective combination drug delivery platform for cancer therapy. BIOMATERIALS ADVANCES 2022; 139:213015. [PMID: 35882161 DOI: 10.1016/j.bioadv.2022.213015] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/22/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Core-crosslinking of micelles (CCMs) appears to be a favorable strategy to enhance micellar stability and sustained release of the loaded drug. In this study, the DOX-conjugated pH-sensitive polymeric prodrug Methoxy Poly (ethylene oxide)-b-Poly (Aspartate-Hydrazide) (mPEG-P [Asp-(Hyd-DOX)] was created using ring-opening polymerization. To further enhance the micellar system, 3,3'-diselanediyldipropanoic acid (DSeDPA) was applied to link the hydrophobic segment via click reaction to form pH/redox-responsive CCMs. Dual anti-cancer drugs, DOX as a pro-drug and SN-38 as a targeting drug, were used to enhance inhibition. DLS confirmed that the non-cross-linked micelle (NCMs) showed a higher (96.43 nm) particle size compared to the CCMs (72.63 nm). Due to micellar shrinkage after crosslinking, CCMs displayed SN-38 drug loading (7.32 %) and encapsulation efficiency (86.23 %). The mPEG-P(Asp-Hyd) copolymer's in vitro cytotoxicity on HeLa and HaCaT cell lines found that 84.52 % of the cells are alive, and zebrafish (Danio rerio) embryos and larvae are highly biocompatible. The DOX/SN-38@CCMs had a sustained discharge profile in vitro, unlike the DOX/SN-38@NCMs. In DOX/SN-38@CCMs, HeLa cells were inhibited 50.90 % more than HaCaT (14.25 %) at the maximum drug dose (10 μg/mL). The CCMs successfully targeted and supplied DOX/SN-38 in HeLa cells rather than HaCaT cells, based on cellular uptake of 2D cell culture. CCMs, unlike NCMs, inhibit the growth of spheroids for extended periods of time due to the prolonged release of the loaded drug. Overall, CCMs are good-looking for use as regulated delivery of DOX/SN-38 in cancer cells because of all of these appealing characteristics.
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Affiliation(s)
- Hailemichael Tegenu Gebrie
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Kefyalew Dagnew Addisu
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Haile Fentahun Darge
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Yihenew Simegniew Birhan
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Darieo Thankachan
- Department of Materials Science And Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; Advanced Membrane Material Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; R&d Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan, ROC.
| | - Szu-Yuan Wu
- Department of Food Nutrition and Health Biotechnology, College of Medical and Health Science, Asia University, Taichung, Taiwan; Division of Radiation Oncology, Department of Medicine, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan; Big Data Center, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan; Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan; Artificial Intelligence Development Center, Fu Jen Catholic University, Taipei, Taiwan.; Graduate Institute of Business Administration, College of Management, Fu Jen Catholic University, Taipei, Taiwan; Center for Regional Anesthesia and Pain Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
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6
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Wang T, Qin J, Cheng J, Li C, Du J. Intelligent design of polymersomes for antibacterial and anticancer applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1822. [PMID: 35673991 DOI: 10.1002/wnan.1822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/13/2022] [Accepted: 05/18/2022] [Indexed: 01/25/2023]
Abstract
Polymersomes (or polymer vesicles) have attracted much attention for biomedical applications in recent years because their lumen can be used for drug delivery and their coronas and membrane can be modified with a variety of functional groups. Thus, polymersomes are very suitable for improved antibacterial and anticancer therapy. This review mainly highlighted recent advances in the synthetic protocols and design principles of intelligent antibacterial and anticancer polymersomes. Antibacterial polymersomes are divided into three categories: polymersomes as antibiotic nanocarriers, intrinsically antibacterial polymersomes, and antibacterial polymersomes with supplementary means including photothermal and photodynamic therapy. Similarly, the anticancer polymersomes are divided into two categories: polymersomes-based delivery systems and anticancer polymersomes with supplementary means. In addition, the bilateral relationship between bacteria and cancer is addressed, since more and more evidences show that bacteria may cause cancer or promote cancer progression. Finally, prospective on next-generation antibacterial and anticancer polymersomes are discussed. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Biology-Inspired Nanomaterials > Lipid-Based Structures.
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Affiliation(s)
- Tao Wang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, China
| | - Jinlong Qin
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, China.,Department of Gynecology and Obstetrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiajing Cheng
- Department of Gynecology and Obstetrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Chang Li
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, China
| | - Jianzhong Du
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, China.,Department of Gynecology and Obstetrics, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
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7
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Bai Y, Liu C, Yang J, Liu C, Shang Q, Tian W. Supramolecular self-assemblies based on water-soluble pillar[6]arene and drug-drug conjugates for the combination of chemotherapy. Colloids Surf B Biointerfaces 2022; 217:112606. [PMID: 35660745 DOI: 10.1016/j.colsurfb.2022.112606] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 12/12/2022]
Abstract
Although some co-drug delivery systems have been reported to treat cancer, how to optimal design these nano-systems with enhanced therapeutic efficacy is still a major challenge. As for the nitrogen mustard drugs chlorambucil (Cb), the overexpressed glutathione (GSH) in cancer tissue is responsible for their detoxification and reduced bioavailability. In this paper, chlorambucil-oxoplatin (Cb-Pt) was prepared to fabricate water-soluble pillar[6]arene (WP[6]) based supramolecular drug-drug self-assemblies (SDSAs). Remarkably, after the transcytosis by cancer cells, SDSAs was reduced by GSH to re lease Cb and higher toxic cisplatin, accompanying with the declining GSH level and ascending ROS level. Moreover, in vitro and in vivo experiments demonstrated that SDSAs with oxidative stress amplification strategy exhibited excellent therapeutic effect. This strategy might be useful for the synergistic co-drug based chemotherapy field.
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Affiliation(s)
- Yang Bai
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Caiping Liu
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jing Yang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Chengfei Liu
- Shaanxi Key Laboratory of Polymer Science & Technology, OME Key Laboratory of Supernormal Material Physics & Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Qingqing Shang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Wei Tian
- Shaanxi Key Laboratory of Polymer Science & Technology, OME Key Laboratory of Supernormal Material Physics & Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
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8
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Wang W, Zhou Z, Sathe D, Tang X, Moran S, Jin J, Haeffner F, Wang J, Niu J. Degradable Vinyl Random Copolymers via Photocontrolled Radical Ring‐Opening Cascade Copolymerization**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenqi Wang
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Zefeng Zhou
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Devavrat Sathe
- School of Polymer Science and Polymer Engineering University of Akron Akron OH 44325 USA
| | - Xuanting Tang
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Stephanie Moran
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Jing Jin
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Fredrik Haeffner
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Junpeng Wang
- School of Polymer Science and Polymer Engineering University of Akron Akron OH 44325 USA
| | - Jia Niu
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
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9
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Wang W, Zhou Z, Sathe D, Tang X, Moran S, Jin J, Haeffner F, Wang J, Niu J. Degradable Vinyl Random Copolymers via Photocontrolled Radical Ring-Opening Cascade Copolymerization. Angew Chem Int Ed Engl 2021; 61:e202113302. [PMID: 34890493 DOI: 10.1002/anie.202113302] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Indexed: 11/12/2022]
Abstract
Degradable vinyl polymers by radical ring-opening polymerization are promising solutions to the challenges caused by non-degradable vinyl plastics. However, achieving even distributions of labile functional groups in the backbone of degradable vinyl polymers remains challenging. Herein, we report a photocatalytic approach to degradable vinyl random copolymers via radical ring-opening cascade copolymerization (rROCCP). The rROCCP of macrocyclic allylic sulfones and acrylates or acrylamides mediated by visible light at ambient temperature achieved near-unity comonomer reactivity ratios over the entire range of the feed compositions. Experimental and computational evidence revealed an unusual reversible inhibition of chain propagation by in situ generated sulfur dioxide (SO2), which was successfully overcome by reducing the solubility of SO2. This study provides a powerful approach to degradable vinyl random copolymers with comparable material properties to non-degradable vinyl polymers.
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Affiliation(s)
- Wenqi Wang
- Boston College, Chemistry, UNITED STATES
| | | | - Devavrat Sathe
- University of Akron, School of Polymer Science and Polymer Engineering, UNITED STATES
| | | | | | - Jing Jin
- Boston College, Chemistry, UNITED STATES
| | | | - Junpeng Wang
- University of Akron, School of Polymer Science and Polymer Engineering, UNITED STATES
| | - Jia Niu
- Boston College, Department of Chemistry, 2609 Beacon St., Merkert Chemistry Center 214B, 02467, Chestnut Hill, UNITED STATES
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Theodosis-Nobelos P, Charalambous D, Triantis C, Rikkou-Kalourkoti M. Drug Conjugates Using Different Dynamic Covalent Bonds and their Application in Cancer Therapy. Curr Drug Deliv 2021; 17:542-557. [PMID: 32384029 DOI: 10.2174/1567201817999200508092141] [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] [Received: 06/19/2019] [Revised: 09/12/2019] [Accepted: 03/12/2020] [Indexed: 01/27/2023]
Abstract
Polymer-drug conjugates are polymers with drug molecules chemically attached to polymer side chains through either a weak (degradable bond) or a dynamic covalent bond. These systems are known as pro-drugs in the inactive form when passing into the blood circulation system. When the prodrug reaches the target organ, tissue or cell, the drug is activated by cleavage of the bond between the drug and polymer, under certain conditions existing in the target organ. The advantages of polymer-drug conjugates compared to other controlled-release carriers and conventional pharmaceutical formulations are the increased drug loading capacity, prolonged in vivo; circulation time, enhanced intercellular uptake, better-controlled release, improved therapeutic efficacy, and enhanced permeability and retention effect. The aim of the present review is the investigation of polymer-drug conjugates bearing anti-cancer drugs. The polymer, through its side chains, is linked to the anti-cancer drugs via; dynamic covalent bonds, such as hydrazone/imine bonds, disulfide bonds, and boronate esters. These dynamic covalent bonds are cleaved in conditions existing only in cancer cells and not in healthy ones. Thus, ensuring the selective release of drug to the targeted tissue, reducing in this way, the frequent side effects of chemotherapy, leading to a more targeted application, despite the nature of the applied polymer, possessing the ability to aim tumors selectively via; incorporation of a relative ligand.
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Affiliation(s)
| | - Despina Charalambous
- Department of Pharmacy, School of Health Sciences, Frederick University, Nicosia, Cyprus
| | - Charalampos Triantis
- Department of Pharmacy, School of Health Sciences, Frederick University, Nicosia, Cyprus
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11
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Ghorbani M, Zarei M, Mahmoodzadeh F, Ghorbani M. Targeted delivery of methotrexate using a new PEGylated magnetic/gold nanoplatform covered with pH‐responsive shell. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2020.1740994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Marjan Ghorbani
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mojtaba Zarei
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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12
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Sethuraman V, Janakiraman K, Krishnaswami V, Kandasamy R. Recent Progress in Stimuli-Responsive Intelligent Nano Scale Drug Delivery Systems: A Special Focus Towards pH-Sensitive Systems. Curr Drug Targets 2021; 22:947-966. [PMID: 33511953 DOI: 10.2174/1389450122999210128180058] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/12/2020] [Accepted: 11/24/2020] [Indexed: 11/22/2022]
Abstract
Stimuli-responsive nanocarriers are gaining much attention due to their versatile multifunctional activities, including disease diagnosis and treatment. Recently, clinical applications of nano-drug delivery systems for cancer treatment pose a challenge due to their limited cellular uptake, low bioavailability, poor targetability, stability issues, and unfavourable pharmacokinetics. To overcome these issues, researchers are focussing on stimuli-responsive systems. Nanocarriers elicit their role through endogenous (pH, temperature, enzyme, and redox) or exogenous (temperature, light, magnetic field, ultrasound) stimulus. These systems were designed to overcome the shortcomings such as non-specificity and toxicity associated with the conventional drug delivery systems. The pH variation between healthy cells and tumor microenvironment creates a platform for the generation of pH-sensitive nano delivery systems. Herein, we propose to present an overview of various internal and external stimuli-responsive behavior-based drug delivery systems. Herein, the present review will focus specifically on the significance of various pH-responsive nanomaterials such as polymeric nanoparticles, nano micelles, inorganic-based pH-sensitive drug delivery carriers such as calcium phosphate nanoparticles, and carbon dots in cancer treatment. Moreover, this review elaborates the recent findings on pH-based stimuli-responsive drug delivery systems with special emphasis on our reported stimuli-responsive systems for cancer treatment.
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Affiliation(s)
- Vaidevi Sethuraman
- Centre for Excellence in Nanobio Translational Research (CENTRE), Department of Pharmaceutical Technology, University College of Engineering, Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - Kumar Janakiraman
- Centre for Excellence in Nanobio Translational Research (CENTRE), Department of Pharmaceutical Technology, University College of Engineering, Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - Venkateshwaran Krishnaswami
- Department of Allied Health Sciences, Noorul Islam Center for Higher Education (Deemed University), Kumaracoil, Kanyakumari, Tamil Nadu, India
| | - Ruckmani Kandasamy
- Centre for Excellence in Nanobio Translational Research (CENTRE), Department of Pharmaceutical Technology, University College of Engineering, Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
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13
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Ofridam F, Tarhini M, Lebaz N, Gagnière É, Mangin D, Elaissari A. pH
‐sensitive polymers: Classification and some fine potential applications. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5230] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fabrice Ofridam
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Mohamad Tarhini
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
| | - Noureddine Lebaz
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Émilie Gagnière
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Denis Mangin
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
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14
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Dual Redox/pH-Sensitive Micelles Self-Assembled From Star-Like Amphiphilic Copolymers Based On Sucrose For Controlled Doxorubicin Delivery. J Pharm Sci 2020; 110:2196-2209. [PMID: 33373606 DOI: 10.1016/j.xphs.2020.12.029] [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: 07/29/2020] [Revised: 10/20/2020] [Accepted: 12/22/2020] [Indexed: 11/23/2022]
Abstract
Novel dual redox/pH-sensitive star-like amphiphilic sucrose-oligo(butyl fumarate) (thioglycolic acid conjugate)-SS-poly(ethylene glycol) (Suc-OBF(TGA)-SS-PEG) copolymers and their self-assembled micelles were prepared and utilized for intracellular doxorubicin delivery. Importance of changing the hydrophobic chain length on micelles properties was investigated. Results showed that the micelles with longer hydrophobic chain exhibited smaller size and were more stable in aqueous solution. The redox and pH sensitivity of the micelles was confirmed by the change of micelle diameter/diameter distribution measured by dynamic light scattering and the change of micellar morphology observed by scanning electron microscope. The micelles display a decent doxorubicin loading capacity. In vitro release studies showed that only 14.3% doxorubicin was released from doxorubicin-loaded micelles under physiological conditions in 30 h. The release of doxorubicin was accelerated at pH 5.5 or in the presence of 10 mM glutathione at pH 7.4 (46.9% and 76.9% of doxorubicin was released, respectively, in 30 h). The doxorubicin release was further expedited under pH 5.5 and 10 mM GSH conditions (91.4%). Suc-OBF(TGA)-SS-PEG micelles displayed no cytotoxicity toward HDF cells. MTT assays indicated that doxorubicin-loaded micelles had good cytotoxicity against MCF-7 cells. This work suggested that star-like amphiphilic Suc-OBF(TGA)-SS-PEG copolymer micelles may provide a promising platform for delivering doxorubicin and other hydrophobic anticancer drugs.
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15
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Pesenti T, Nicolas J. 100th Anniversary of Macromolecular Science Viewpoint: Degradable Polymers from Radical Ring-Opening Polymerization: Latest Advances, New Directions, and Ongoing Challenges. ACS Macro Lett 2020; 9:1812-1835. [PMID: 35653672 DOI: 10.1021/acsmacrolett.0c00676] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Radical ring-opening polymerization (rROP) allows facile incorporation of labile groups (e.g., ester) into the main chain of vinyl polymers to obtain (bio)degradable materials. rROP has focused a lot of attention especially since the advent of reversible deactivation radical polymerization (RDRP) techniques and is still incredibly moving forward, as attested by the numerous achievements in terms of monomer synthesis, macromolecular engineering, and potential biomedical applications of the resulting degradable polymers. In the present Viewpoint, we will cover the latest progress made in rROP in the last ∼5 years, such as its recent directions, its remaining limitations, and the ongoing challenges. More specifically, this will be achieved through the three different classes of monomers that recently caught most of the attention: cyclic ketene acetals (CKA), thionolactones, and macrocyclic monomers.
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Affiliation(s)
- Théo Pesenti
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
| | - Julien Nicolas
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
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16
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Ziolek RM, Omar J, Hu W, Porcar L, González-Gaitano G, Dreiss CA, Lorenz CD. Understanding the pH-Directed Self-Assembly of a Four-Arm Block Copolymer. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01694] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Robert M. Ziolek
- Biological Physics and Soft Matter Group, Department of Physics, King’s College London, London WC2R 2LS, United Kingdom
| | - Jasmin Omar
- Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, United Kingdom
| | - Wenjing Hu
- Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, United Kingdom
| | - Lionel Porcar
- Institut Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
| | | | - Cécile A. Dreiss
- Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, United Kingdom
| | - Christian D. Lorenz
- Biological Physics and Soft Matter Group, Department of Physics, King’s College London, London WC2R 2LS, United Kingdom
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17
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Moreno A, Jiménez-Alesanco A, Ronda JC, Cádiz V, Galià M, Percec V, Abian O, Lligadas G. Dual Biochemically Breakable Drug Carriers from Programmed Telechelic Homopolymers. Biomacromolecules 2020; 21:4313-4325. [PMID: 32897693 DOI: 10.1021/acs.biomac.0c01113] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Well-defined hydrophilic telechelic dibromo poly(triethylene glycol monomethyl ether acrylate)s were prepared by single-electron transfer living radical polymerization employing a hydrophobic difunctional initiator containing acetal and disulfide linkages. Although the resulting homopolymers have low hydrophobic contents (<8.5 wt % of the entire structure), they are able to self-assemble in water into nanoscale micellelike particles via chain folding. Acetal and disulfide linkages were demonstrated to be "keystone" units for their dual stimuli-responsive behavior under biochemically relevant conditions. Their site-selective middle-chain cleavage under both acidic pH and reductive conditions splits the homopolymer into two equal-sized fragments and results in the breakdown of the nanoassemblies. The drug loading/delivery potential of these nanoparticles was investigated using curcumine combining in vitro drug release, cytotoxicity, and cellular uptake studies with human cancer cell lines (HT-29 and HeLa). Importantly, this strategy may be extended to prepare innovative nanoplatforms based on hydrophilic homopolymers or random copolymers for intelligent drug delivery.
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Affiliation(s)
- Adrian Moreno
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Ana Jiménez-Alesanco
- Institute of Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, Universidad de Zaragoza, Zaragoza 50018, Spain
| | - Juan C Ronda
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Virginia Cádiz
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Marina Galià
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Olga Abian
- Institute of Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, Universidad de Zaragoza, Zaragoza 50018, Spain.,Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza 50018, Spain.,Instituto de Investigación Sanitaria de Aragón (IIS Aragon), Zaragoza 50009 Spain.,Centro de Investigación Biomédica en Red en el Área Temática de Enfermedades Hepáticas Digestivas (CIBERehd), Madrid 28029, Spain.,Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, Zaragoza 50013, Spain
| | - Gerard Lligadas
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain.,Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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18
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Zhang L, Xie L, Xu S, Kuchel RP, Dai Y, Jung K, Boyer C. Dual Role of Doxorubicin for Photopolymerization and Therapy. Biomacromolecules 2020; 21:3887-3897. [PMID: 32786533 DOI: 10.1021/acs.biomac.0c01025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this study, we report dual roles for doxorubicin (DOX), which can serve as an antitumor drug as well as a cocatalyst for a photoliving radical polymerization. DOX enhances the polymerization rates of a broad range of monomers, including acrylamide, acrylate, and methacrylates, allowing for high monomer conversion and well-defined molecular weights under irradiation with a blue light-emitting diode light (λmax = 485 nm, 2.2 mW/cm2). Utilizing this property, the photopolymerization of N,N-diethylacrylamide was performed in the presence of a poly(oligo(ethylene glycol) methyl ether acrylate) macroreversible addition-fragmentation chain transfer (macroRAFT) agent to prepare polymeric nanoparticles via aqueous polymerization-induced self-assembly (PISA). By varying the monomer:macroRAFT ratio, spherical polymeric nanoparticles of various diameters could be produced. Most notably, DOX was successfully encapsulated into the hydrophobic core of nanoparticles during the PISA process. The DOX-loaded nanoparticles were effectively uptaken into tumor cells and significantly inhibited the proliferation of tumor cells, demonstrating that the DOX bioactivity was not affected by the polymerization reaction.
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Affiliation(s)
- Liwen Zhang
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Lisi Xie
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau, SAR 999078, China.,Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, SAR 999078, China
| | - Sihao Xu
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Rhiannon P Kuchel
- Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yunlu Dai
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau, SAR 999078, China.,Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, SAR 999078, China
| | - Kenward Jung
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
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19
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Li B, Pang S, Li X, Li Y. PH and redox dual-responsive polymeric micelles with charge conversion for paclitaxel delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:2078-2093. [PMID: 32643545 DOI: 10.1080/09205063.2020.1793708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Here we demonstrate a type of pH and redox dual-responsive micelles, which were self-assembled in aqueous solution by an amphiphilic polymer, methoxypoly(ethylene glycol)-cystamine-poly(L-glutamic acid)-imidazole (mPEG-SS-PGA-IM). Considering tumor cells or tissues exhibiting low pH values and high glutathione (GSH) concentration, mPEG-SS-PGA-IM micelles possessed the charge conversion at pH of tumor tissues, which can facilitate cellular uptake of tumor cells. Furthermore, mPEG-SS-PGA-IM micelles can escape from endo/lysosomes based on the proton sponge effect, following degraded by higher concentration of GSH in cytoplasm. CLSM images of HCT116 cells indicated that mPEG-SS-PGA-IM micelles can escape from endo/lysosomes and enter cytoplasm. MTT assay showed that (paclitaxel) PTX-loaded mPEG-SS-PGA-IM micelles had higher cytotoxicity against HCT116 cells compared with PTX-loaded mPEG-PBLG and mPEG-SS-PBLG micelles. These results indicated that these mPEG-SS-PGA-IM micelles, as novel and effective pH- and redox-responsive nanocarriers, have great potential to both improve drug targeting efficiency while also enhancing the antitumor efficacy of PTX.
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Affiliation(s)
- Bo Li
- Binzhou People's Hospital, Binzhou, China
| | | | - Xinxin Li
- Binzhou People's Hospital, Binzhou, China
| | - Yanhai Li
- Binzhou People's Hospital, Binzhou, China
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20
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Wang Q, Gao F, Zhou X. Redox-responsive AIE micelles for intracellular paclitaxel delivery. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04679-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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21
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Du Y, Wang Z, Wang T, He W, Zhou W, Li M, Yao C, Li X. Improved Antitumor Activity of Novel Redox-Responsive Paclitaxel-Encapsulated Liposomes Based on Disulfide Phosphatidylcholine. Mol Pharm 2019; 17:262-273. [PMID: 31747284 DOI: 10.1021/acs.molpharmaceut.9b00988] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The microtubule inhibitor paclitaxel (PTX) is used to treat a wide range of solid tumors. Due to the poor aqueous solubility of PTX, a continuous demand for safe, efficient PTX formulations with improved antitumor activity exists. Here, we report a novel form of redox-sensitive paclitaxel (PTX)-encapsulated liposomes based on the previously developed disulfide phosphatidylcholine (SS-PC). PTX-loaded stealth liposomes (PTX/SS-LP) composed of SS-PC, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-PEG2000 (DSPE-PEG2000), and cholesterol were prepared using the reverse-phase evaporation method. The characterization of the PTX/SS-LP liposomes using dynamic light scattering and transmission electron microscopy confirmed their uniform particle size and typical unilamellar vesicle structure with an average bilayer thickness of approximately 4 nm. Changes in the size and morphology as well as the rapid release of PTX triggered by the addition of dithiothreitol revealed the redox sensitivity of PTX/SS-LP. Finally, evaluations in MCF-7 and A549 cells in vitro and in BALB/c mice in vivo revealed the improved anticancer efficiency, biodistribution, and safety of PTX/SS-LP compared with those of Taxol and nonredox-sensitive PTX/LP. In conclusion, PTX/SS-LP displays a redox-responsive release of paclitaxel with improved antitumor activity and has great potential as a next-generation stealth liposomal PTX delivery system.
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Affiliation(s)
- Yawei Du
- Department of Plastic Surgery , Peking Union Medical College Hospital , Beijing 100730 , P. R. China.,School of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , P. R. China
| | - Zhi Wang
- Department of Plastic Surgery , Peking Union Medical College Hospital , Beijing 100730 , P. R. China
| | - Tao Wang
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , P. R. China
| | - Wei He
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , P. R. China
| | - Wenya Zhou
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , P. R. China
| | - Man Li
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , P. R. China
| | - Chen Yao
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , P. R. China
| | - Xinsong Li
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , P. R. China
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22
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Kim SG, Ryplida B, Phuong PTM, Won HJ, Lee G, Bhang SH, Park SY. Reduction-Triggered Paclitaxel Release Nano-Hybrid System Based on Core-Crosslinked Polymer Dots with a pH-Responsive Shell-Cleavable Colorimetric Biosensor. Int J Mol Sci 2019; 20:E5368. [PMID: 31661903 PMCID: PMC6862247 DOI: 10.3390/ijms20215368] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/09/2019] [Accepted: 10/25/2019] [Indexed: 12/22/2022] Open
Abstract
Herein, we describe the fabrication and characterization of carbonized disulfide core-crosslinked polymer dots with pH-cleavable colorimetric nanosensors, based on diol dye-conjugated fluorescent polymer dots (L-PD), for reduction-triggered paclitaxel (PTX) release during fluorescence imaging-guided chemotherapy of tumors. L-PD were loaded with PTX (PTX loaded L-PD), via π-π stackings or hydrophobic interactions, for selective theragnosis by enhanced release of PTX after the cleavage of disulfide bonds by high concentration of glutathione (GSH) in a tumor. The nano-hybrid system showed fluorescence quenching behavior with less than 2% of PTX released under physiological conditions. However, in a tumor microenvironment, the fluorescence recovered at an acidic-pH, and PTX (approximately 100% of the drug release) was released efficiently out of the matrix by reduction caused by the GSH level in the tumor cells, which improved the effectiveness of the cancer treatment. Therefore, the colorimetric nanosensor showed promising potential in distinguishing between normal and cancerous tissues depending on the surrounding pH and GSH concentrations so that PTX can be selectively delivered into cancer cells for improved cancer diagnosis and chemotherapy.
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Affiliation(s)
- Seul Gi Kim
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Korea.
| | - Benny Ryplida
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Korea.
| | - Pham Thi My Phuong
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Korea.
| | - Hyun Jeong Won
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Korea.
| | - Gibaek Lee
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Korea.
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea.
| | - Sung Young Park
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Korea.
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Korea.
- Department of IT Convergence, Korea National University of Transportation, Chungju 380-702, Korea.
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