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Oyama Y, Kurokawa N, Hotta A. Multifunctionality of Iodinated Halogen-Bonded Polymer: Biodegradability, Radiopacity, Elasticity, Ductility, and Self-Healing Ability. ACS Biomater Sci Eng 2023; 9:6094-6102. [PMID: 37856790 DOI: 10.1021/acsbiomaterials.3c01075] [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] [Indexed: 10/21/2023]
Abstract
A polymer with high contents of ester bonds and iodine atoms was synthesized, exhibiting sufficient biodegradability and radioactivity for biomedical applications. The iodine moieties of the synthesized polyester can generate halogen bonding between molecules, which may develop additional functional properties through the bonding. In this study, poly(glycerol adipate) (PGA) was selected and synthesized as a polyester, which was then adequately conjugated with three different types of iodine compounds via the hydroxy groups of PGA. It was found that the iodine compounds could effectively work as donors of halogen bonding. The thermal analysis by differential scanning calorimetry (DSC) revealed that the glass transition temperature increased with the increase in the strength of interactions caused by π-π stacking and halogen bonding, eventually reaching 49.6 °C for PGA with triiodobenzoic groups. An elastomeric PGA with monoiodobenzoic groups was also obtained, exhibiting a high self-healing ability at room temperature because of the reconstruction of halogen bonding. Such multifaceted performance of the synthesized polyester with controllable thermal/mechanical properties was realized by halogen bonding, leading to a promising biomaterial with multifunctionality.
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Affiliation(s)
- Yuya Oyama
- Department of Mechanical Engineering, Keio University, Yokohama 223-8522, Japan
| | - Naruki Kurokawa
- Department of Mechanical Engineering, Keio University, Yokohama 223-8522, Japan
| | - Atsushi Hotta
- Department of Mechanical Engineering, Keio University, Yokohama 223-8522, Japan
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Zheng Z, Ma M, Han X, Li X, Huang J, Zhao Y, Liu H, Kang J, Kong X, Sun G, Sun G, Kong J, Tang W, Shao G, Xiong F, Song J. Idarubicin-loaded biodegradable microspheres enhance sensitivity to anti-PD1 immunotherapy in transcatheter arterial chemoembolization of hepatocellular carcinoma. Acta Biomater 2023; 157:337-351. [PMID: 36509402 DOI: 10.1016/j.actbio.2022.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 11/23/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022]
Abstract
Transarterial chemoembolization (TACE) is an image-guided locoregional therapy used for the treatment of patients with primary hepatocellular carcinoma (HCC). However, conventional TACE formulations such as epirubicin-lipiodol emulsion are rapidly dissociated due to the instability of the emulsion, resulting in insufficient local drug concentrations in the target tumor. To overcome these limitations, we used biodegradable Idarubicin loaded microspheres (BILMs), which were prepared from gelatin and carrageenan and could be loaded with Idarubicin (IDA-MS). The morphology and the ability to load and release IDA of BILMs were characterized in vitro. We evaluated tumor changes and side effects after TACE treatment with IDA-MS in VX2 rabbit and C57BL/6 mice HCC models. In addition, the effect of IDA-MS on the tumor immune microenvironment of HCC tumors was elucidated via mass spectrometry and immunohistochemistry. Result showed that IDA-MS was developed as a new TACE formulation to overcome the poor delivery of drugs due to rapid elimination of the anticancer drug into the systemic circulation. We demonstrated in rabbits and mice HCC models that TACE with IDA-MS resulted in significant tumor shrinkage and no more severe adverse events than those observed in the IDA group. TACE with IDA-MS could also significantly enhance the sensitivity of anti-PD1 immunotherapy, improve the expression of CD8+ T cells, and activate the tumor immune microenvironment in HCC. This study provides a new approach for TACE therapy and immunotherapy and illuminates the future of HCC treatment. STATEMENT OF SIGNIFICANCE: Conventional transarterial chemoembolization (TACE) formulations are rapidly dissociated due to the instability of the emulsion, resulting in insufficient local drug concentrations in hepatocellular carcinoma (HCC). To overcome these limitations, we used biodegradable microspheres called BILMs, which could be loaded with Idarubicin (IDA-MS). We demonstrated in rabbits and mice HCC models that TACE with IDA-MS resulted in significant tumor shrinkage and no more severe adverse events than those observed in the IDA group. TACE with IDA-MS could also significantly enhance the sensitivity of anti-PD1 immunotherapy, improve the expression of CD8+ T cells, and activate the tumor immune microenvironment in HCC. This study provides a new approach for TACE therapy and immunotherapy and illuminates the future of HCC treatment.
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Affiliation(s)
- Zhiying Zheng
- Hepatobiliary Center, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Mingxi Ma
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano-Science and Technology, Southeast University, Nanjing, China
| | - Xiuping Han
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao Li
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jinxin Huang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano-Science and Technology, Southeast University, Nanjing, China
| | - Yuetong Zhao
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Hanyuan Liu
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Junwei Kang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiangyi Kong
- Hepatobiliary Center, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Guoqiang Sun
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Guangshun Sun
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jie Kong
- Department of Intervention, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Weiwei Tang
- Hepatobiliary Center, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Guoqiang Shao
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Fei Xiong
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano-Science and Technology, Southeast University, Nanjing, China.
| | - Jinhua Song
- Hepatobiliary Center, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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Luo Y, Ma Y, Chen Z, Gao Y, Zhou Y, Liu X, Liu X, Gao X, Li Z, Liu C, Leo HL, Yu H, Guo Q. Shape-Anisotropic Microembolics Generated by Microfluidic Synthesis for Transarterial Embolization Treatment. Adv Healthc Mater 2022; 11:e2102281. [PMID: 35106963 DOI: 10.1002/adhm.202102281] [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: 10/22/2021] [Revised: 12/29/2021] [Indexed: 11/11/2022]
Abstract
Particulate embolic agents with calibrated sizes, which employ interventional procedures to achieve endovascular embolization, have recently attracted tremendous interest in therapeutic embolotherapies for a wide plethora of diseases. However, the particulate shape effect, which may play a critical role in embolization performances, has been rarely investigated. Here, polyvinyl alcohol (PVA)-based shape-anisotropic microembolics are developed using a facile droplet-based microfluidic fabrication method via heat-accelerated PVA-glutaraldehyde crosslinking reaction at a mild temperature of 38 ° C. Precise geometrical controls of the microembolics are achieved with a nearly capsule shape through regulating surfactant concentration and flow rate ratio between dispersed phase and continuous phase in the microfluidics. Two specific models are employed, i.e., in vitro decellularized rabbit liver embolization model and in vivo rabbit ear embolization model, to systematically evaluate the embolization behaviors of the nonspherical microembolics. Compared to microspheres of the same volume, the elongated microembolics demonstrated advantageous endovascular navigation capability, penetration depth and embolization stability due to their comparatively smaller radial diameter and their central cylindrical part providing larger contact area with distal vessels. Such nonspherical microembolics present a promising platform to apply shape anisotropy to achieve distinctive therapeutic effects for endovascular treatments.
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Affiliation(s)
- Yucheng Luo
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Yutao Ma
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Zijian Chen
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
- Department of Biomedical Engineering National University of Singapore Engineering Drive 3, Engineering Block 4, #04‐08 Singapore 117583 Singapore
| | - Yanan Gao
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Yuping Zhou
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Xiaoya Liu
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Xuezhe Liu
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Xu Gao
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Zhihua Li
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Chuang Liu
- Cryo‐EM Center Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Hwa Liang Leo
- Department of Biomedical Engineering National University of Singapore Engineering Drive 3, Engineering Block 4, #04‐08 Singapore 117583 Singapore
| | - Hanry Yu
- Mechanobiology Institute National University of Singapore Singapore 117411 Singapore
- Institute of Bioengineering and Nanotechnology Agency for Science Technology and Research Singapore 138669 Singapore
- Department of Physiology Yong Loo Lin School of Medicine National University of Singapore Singapore 117593 Singapore
- Singapore‐MIT Alliance for Research and Technology Singapore 138602 Singapore
| | - Qiongyu Guo
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 China
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Jeon SI, Kim MS, Kim HJ, Kim YI, Jae HJ, Ahn CH. Biodegradable poly(lactide-co-glycolide) microspheres encapsulating hydrophobic contrast agents for transarterial chemoembolization. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:409-425. [PMID: 34613885 DOI: 10.1080/09205063.2021.1990472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Transarterial chemoembolization (TACE) is a therapeutic approach to address hepatocellular carcinoma by obstructing the blood supply to the tumor using embolic agents and improving the local delivery of anticancer agents. Size-calibrated polymeric microspheres (MSs) termed drug-eluting beads (DEBs) are the most prevalent solid embolic materials; however, their limitations include insufficient X-ray visibility or biodegradability. In this study, size-controlled polymeric MSs with inherent radiopacity and biodegradability were created, and their embolic effect was assessed. Poly(lactide-co-glycolide) MSs (PLGA MSs) incorporating a hydrophobic X-ray contrast agent and an anticancer drug were produced by the w/o/w emulsion process. Their sizes were exactly calibrated to 71.40 ± 32.18 and 142.66 ± 59.92 μm in diameter, respectively, which were confirmed to have sizes similar to the clinically available DEBs. The iodine content of PLGA MSs was calculated as 144 mgI/g, and the loading quantity of the drug was 1.33%. Manufactured PLGA MSs were gradually degraded for 10 weeks and consistently released the anticancer drug. Following the PLGA MSs injection into the renal artery of New Zealand white rabbit test subjects, their deliverability to the targeted vessel through the microcatheter was confirmed. Injected PLGA MSs were clearly imaged through the real-time X-ray device without blending any contrast agents. The embolic effect of the PLGA MSs was ultimately established by the atrophy of an embolized kidney after 8 weeks. Consequently, the designed PLGA MS is anticipated to be an encouraging prospect to address hepatocellular carcinoma.
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Affiliation(s)
- Seong Ik Jeon
- Research Institute of Advanced Materials (RIAM), Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Moo Song Kim
- Research Institute of Advanced Materials (RIAM), Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hyung Jun Kim
- Research Institute of Advanced Materials (RIAM), Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | | | - Hwan Jun Jae
- Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul National University Medical Research Center, Clinical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Cheol-Hee Ahn
- Research Institute of Advanced Materials (RIAM), Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
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Hashimoto K, Kurokawa N, Hotta A. Controlling the switching temperature of biodegradable shape memory polymers composed of stereocomplex polylactide / poly(,-lactide-co-ε-caprolactone) blends. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Abstract
Ultra-high molecular weight polyethylene (UHMWPE) can be made radiopaque for medical imaging applications through the diffusion of an iodised oil-based contrast agent (Lipiodol Ultra Fluid). A similar process is used for Vitamin E incorporated polyethylene which provides antioxidant properties. This study aimed to investigate the critical long-term properties of oil-infused medical polyethylene after 4 weeks of accelerated thermal ageing. Samples treated with an oil (Vitamin E or Lipiodol) had a higher oxidation stability than currently used medical grade polyethylene, indicated by a smaller increase in oxidation index after ageing (Vitamin E + 36%, Lipiodol +40%, Untreated +136%, Thermally treated +164%). The tensile properties of oil treated polyethylene after ageing were significantly higher than the Untreated and Thermally treated controls (p<0.05) indicating less mechanical degradation. There was also no alteration in the percentage crystallinity of oil treated samples after ageing, though the radiopacity of the Lipiodol treated samples reduced by 54% after ageing. The leaching of oil with time was also investigated; the leaching of Lipiodol and Vitamin E followed the same trend and reached a steady state by two weeks. Overall, it can be concluded that the diffusion of an oil-based fluid into polyethylene not only increases the oxidative and chemical stability of polyethylene but also adds additional functionality (e.g. radiopacity) providing a more suitable material for long-term medical applications.
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Affiliation(s)
- Fedra P Zaribaf
- Centre for Therapeutic Innovation, Department of Mechanical Engineering, University of Bath, Bath, UK
| | - Harinderjit S Gill
- Centre for Therapeutic Innovation, Department of Mechanical Engineering, University of Bath, Bath, UK
| | - Elise C Pegg
- Centre for Therapeutic Innovation, Department of Mechanical Engineering, University of Bath, Bath, UK
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Mikhail AS, Negussie AH, Mauda-Havakuk M, Owen JW, Pritchard WF, Lewis AL, Wood BJ. Drug-eluting embolic microspheres: State-of-the-art and emerging clinical applications. Expert Opin Drug Deliv 2021; 18:383-398. [PMID: 33480306 PMCID: PMC11247414 DOI: 10.1080/17425247.2021.1835858] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/07/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Drug-eluting embolic (DEE) microspheres, or drug-eluting beads (DEB), delivered by transarterial chemoembolization (TACE) serve as a therapeutic embolic to stop blood flow to tumors and a drug delivery vehicle. New combinations of drugs and DEE microspheres may exploit the potential synergy between mechanisms of drug activity and local tissue responses generated by TACE to enhance the efficacy of this mainstay therapy. AREAS COVERED This review provides an overview of key drug delivery concepts related to DEE microspheres with a focus on recent technological developments and promising emerging clinical applications as well as speculation into the future. EXPERT OPINION TACE has been performed for nearly four decades by injecting chemotherapy drugs into the arterial supply of tumors while simultaneously cutting off their blood supply, trying to starve and kill cancer cells, with varying degrees of success. The practice has evolved over the decades but has yet to fulfill the promise of truly personalized therapies envisioned through rational selection of drugs and real-time multi-parametric image guidance to target tumor clonality or heterogeneity. Recent technologic and pharmacologic developments have opened the door for potentially groundbreaking advances in how TACE with DEE microspheres is performed with the goal of achieving advancements that benefit patients.
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Affiliation(s)
- Andrew S Mikhail
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Ayele H Negussie
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Michal Mauda-Havakuk
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Joshua W Owen
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - William F Pritchard
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Andrew L Lewis
- Interventional Medicine Innovation Group, Biocompatibles UK, Ltd. (Now Boston Scientific Corp.), Camberley, UK
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
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