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Geng Y, Zou H, Li Z, Wu H. Recent advances in nanomaterial-driven strategies for diagnosis and therapy of vascular anomalies. J Nanobiotechnology 2024; 22:120. [PMID: 38500178 PMCID: PMC10949774 DOI: 10.1186/s12951-024-02370-2] [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: 12/22/2023] [Accepted: 02/23/2024] [Indexed: 03/20/2024] Open
Abstract
Nanotechnology has demonstrated immense potential in various fields, especially in biomedical field. Among these domains, the development of nanotechnology for diagnosing and treating vascular anomalies has garnered significant attention. Vascular anomalies refer to structural and functional anomalies within the vascular system, which can result in conditions such as vascular malformations and tumors. These anomalies can significantly impact the quality of life of patients and pose significant health concerns. Nanoscale contrast agents have been developed for targeted imaging of blood vessels, enabling more precise identification and characterization of vascular anomalies. These contrast agents can be designed to bind specifically to abnormal blood vessels, providing healthcare professionals with a clearer view of the affected areas. More importantly, nanotechnology also offers promising solutions for targeted therapeutic interventions. Nanoparticles can be engineered to deliver drugs directly to the site of vascular anomalies, maximizing therapeutic effects while minimizing side effects on healthy tissues. Meanwhile, by incorporating functional components into nanoparticles, such as photosensitizers, nanotechnology enables innovative treatment modalities such as photothermal therapy and photodynamic therapy. This review focuses on the applications and potential of nanotechnology in the imaging and therapy of vascular anomalies, as well as discusses the present challenges and future directions.
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Affiliation(s)
- Yiming Geng
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, Jinan, 250021, China
| | - Huwei Zou
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, Jinan, 250021, China
| | - Zhaowei Li
- School of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, 619 Changcheng Road, Tai'an, 271000, China.
| | - Haiwei Wu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, Jinan, 250021, China.
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Li Y, Ge X, Li Z, Zhou Z, Wu K, Li Y, Ji T, Wang C, Guo K, Ren J, Han X, Ren K. Application of temperature-sensitive liquid embolic agent loaded with oxaliplatin in the TACE procedure for rabbit VX2 gastric cancer. Drug Deliv Transl Res 2024; 14:705-717. [PMID: 37668861 DOI: 10.1007/s13346-023-01425-5] [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] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
As a promising drug delivery system, the temperature-sensitive liquid embolic agent (TempSLE) has yet to be reported in animal experiments in treating gastric cancer. We observed and compared computed tomography (CT) imaging changes, tumor volume, HE staining, and immunohistochemistry after transcatheter arterial chemoembolization (TACE) treatment in rabbit VX2 gastric cancer models to clarify the effectiveness of TempSLE loaded with oxaliplatin (TempSLE/Oxa) in treating gastric cancer. One milliliter TempSLE can be loaded with 20 mg oxaliplatin. The accumulative drug release rate at 30 min was 38.76%, and after 24 h, it reached more than 90%. CT examination 1 week after TACE revealed that the TempSLE/Oxa group presents unenhanced hypodense necrotic foci, the iodinated oil loaded with oxaliplatin (Ioil/Oxa) group presents shrinking tumors but still visible speckled foci of enhancement, and the normal saline (NS) group presents heterogeneous enhancement with larger tumors than before. In the postoperative autopsy of TACE, the tumor volumes of TempSLE/Oxa, Ioil/Oxa, and NS groups were 0.15 ± 0.06 cm3, 0.37 ± 0.11 cm3, and 1.19 ± 0.16 cm3, respectively, all of which were statistically different. The positive vascular endothelial growth factor (VEGF) and proliferating cell nuclear antigen (PCNA) expression percentages in the TempSLE/Oxa, Ioil/Oxa, and NS groups were statistically different and lowest in the TempSLE/Oxa group. In conclusion, the TempSLE can load a high dose of oxaliplatin to meet the demand of clinical applications. TempSLE/Oxa could effectively inhibit tumor cell proliferation and angiogenesis. This study provides experimental evidence for the further clinical application of the TempSLE/Oxa.
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Affiliation(s)
- Yahua Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Xiaoyong Ge
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Zongming Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Zihe Zhou
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Kunpeng Wu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Yifan Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Tengfei Ji
- Department of Peripheral Vascular, Zhoukou Chinese Medicine Hospital, Zhoukou, 466000, People's Republic of China
| | - Changran Wang
- Department of Peripheral Vascular, Zhoukou Chinese Medicine Hospital, Zhoukou, 466000, People's Republic of China
| | - Kefeng Guo
- Department of Oncology, Yellow River Sanmenxia Hospital, Sanmenxia, 472000, People's Republic of China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China.
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, People's Republic of China.
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, People's Republic of China.
| | - Kewei Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China.
- Engineering Technology Research Center for Minimally Invasive, Interventional Tumors of Henan Province, Zhengzhou, 450052, Henan, China.
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Pal A, Blanzy J, Gómez KJR, Preul MC, Vernon BL. Liquid Embolic Agents for Endovascular Embolization: A Review. Gels 2023; 9:gels9050378. [PMID: 37232970 DOI: 10.3390/gels9050378] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/11/2023] [Accepted: 05/02/2023] [Indexed: 05/27/2023] Open
Abstract
Endovascular embolization (EE) has been used for the treatment of blood vessel abnormalities, including aneurysms, AVMs, tumors, etc. The aim of this process is to occlude the affected vessel using biocompatible embolic agents. Two types of embolic agents, solid and liquid, are used for endovascular embolization. Liquid embolic agents are usually injectable and delivered into the vascular malformation sites using a catheter guided by X-ray imaging (i.e., angiography). After injection, the liquid embolic agent transforms into a solid implant in situ based on a variety of mechanisms, including polymerization, precipitation, and cross-linking, through ionic or thermal process. Until now, several polymers have been designed successfully for the development of liquid embolic agents. Both natural and synthetic polymers have been used for this purpose. In this review, we discuss embolization procedures with liquid embolic agents in different clinical applications, as well as in pre-clinical research studies.
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Affiliation(s)
- Amrita Pal
- Center for Interventional Biomaterials, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Jeffrey Blanzy
- Center for Interventional Biomaterials, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Karime Jocelyn Rosas Gómez
- Center for Interventional Biomaterials, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Mark C Preul
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, Phoenix, AZ 85013, USA
| | - Brent L Vernon
- Center for Interventional Biomaterials, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
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Zhou H, Xie W, Guo A, Chen B, Hu S, Zheng M, Yu H, Tian H, Li L. Temperature sensitive nanogels for real-time imaging during transcatheter arterial embolization. Des Monomers Polym 2023; 26:31-44. [PMID: 36684709 PMCID: PMC9858417 DOI: 10.1080/15685551.2022.2164445] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Several vascular embolization materials are commonly used in clinical practice, however, having application defects of varying degrees, such as poor intraoperative imaging and easy recanalization of embolized blood vessels, they are challenging for application during Transcatheter arterial embolization (TAE). Thus, an intraoperative visible vascular embolization material with good embolization effect and biocompatibility can improve transcatheter arterial embolization clinical efficacy to some extent. Our study aimed to synthesize a novel vascular embolization material that can achieve complete embolization of arterial trunks and peripheral vessels, namely poly (N-isopropyl acrylamide)-co-acrylic acid nanogel (NIPAM-co-AA). Iohexol 200 mg/mL was co-assembled with 7 wt% NIPAM-co-AA nanogel to create an intelligent thermosensitive radiopaque nanogel (INCA), which achieves a good intraoperative imaging effect and is convenient for transcatheter arterial bolus injection due to its good fluidity and temperature-sensitive sol-gel phase transition. The normal rabbit kidney embolism model further confirmed that INCA could effectively use Digital subtraction angiography (DSA) to achieve intraoperative imaging, and real-time monitoring of the embolization process could avoid mis-embolization and leakage. Meanwhile, in a 42-day study, INCA demonstrated an excellent embolization effect on the right renal artery of New Zealand white rabbits, with no vascular recanalization and ischemic necrosis and calcification remaining. As a result, this radiopaque thermosensitive nanogel has the potential to be an intelligent thermosensitive medical vascular embolization material, providing dual benefits in TAE intraoperative imaging and long-term postoperative embolization while effectively addressing the shortcomings and challenges of commonly used clinical vascular embolization agents.
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Affiliation(s)
- Hongfu Zhou
- School of Biomedical Engineering and Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Wenjing Xie
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Anran Guo
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Bin Chen
- Department of Radiology, Xianning Central Hospital, the First Affiliated Hospital of Hubei University of Science and Technology, Xianning, P.R. China
| | - Sanming Hu
- School of Biomedical Engineering and Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Min Zheng
- School of Biomedical Engineering and Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
| | - Houqiang Yu
- Department of Mathematics and Statistics, Hubei University of Science and Technology, Xianning, PR China
| | - Hongan Tian
- Department of Radiology, Xianning Central Hospital, the First Affiliated Hospital of Hubei University of Science and Technology, Xianning, P.R. China,CONTACT Hongan Tian Department of Radiology, Xianning Central Hospital, the First Affiliated Hospital of Hubei University of Science and Technology, Xianning, PR China
| | - Ling Li
- School of Biomedical Engineering and Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China,Ling Li School of Biomedical Engineering and Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning, PR China
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Ko G, Choi JW, Lee N, Kim D, Hyeon T, Kim HC. Recent progress in liquid embolic agents. Biomaterials 2022; 287:121634. [PMID: 35716628 DOI: 10.1016/j.biomaterials.2022.121634] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 11/21/2022]
Abstract
Vascular embolization is a non-surgical procedure used to treat diseases or morbid conditions related to blood vessels, such as bleeding, arteriovenous malformation, aneurysm, and hypervascular tumors, through the intentional occlusion of blood vessels. Among various types of embolic agents that have been applied, liquid embolic agents are gaining an increasing amount of attention owing to their advantages in distal infiltration into regions where solid embolic agents cannot reach, enabling more extensive embolization. Meanwhile, recent advances in biomaterials and technologies have also contributed to the development of novel liquid embolic agents that can resolve the challenges faced while using the existing embolic materials. In this review, we briefly summarize the clinically used embolic agents and their applications, and then present selected research results that overcome the limitations of the embolic agents in use. Through this review, we suggest the required properties of liquid embolic agents that ensure efficacy, which can replace the existing agents, providing directions for the future development in this field.
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Affiliation(s)
- Giho Ko
- Center for Nanoparticle Research, Institute for Basic Spegcience (IBS), Seoul 08826, Republic of Korea; School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin Woo Choi
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Nohyun Lee
- School of Advanced Materials Engineering, Kookmin University, Seoul 02707, Republic of Korea
| | - Dokyoon Kim
- Department of Bionano Engineering and Bionanotechnology, Hanyang University, Ansan 15588, Republic of Korea.
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Spegcience (IBS), Seoul 08826, Republic of Korea; School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.
| | - Hyo-Cheol Kim
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.
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Keskin D, Zu G, Forson AM, Tromp L, Sjollema J, van Rijn P. Nanogels: A novel approach in antimicrobial delivery systems and antimicrobial coatings. Bioact Mater 2021; 6:3634-3657. [PMID: 33898869 PMCID: PMC8047124 DOI: 10.1016/j.bioactmat.2021.03.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/02/2021] [Indexed: 12/15/2022] Open
Abstract
The implementation of nanotechnology to develop efficient antimicrobial systems has a significant impact on the prospects of the biomedical field. Nanogels are soft polymeric particles with an internally cross-linked structure, which behave as hydrogels and can be reversibly hydrated/dehydrated (swollen/shrunken) by the dispersing solvent and external stimuli. Their excellent properties, such as biocompatibility, colloidal stability, high water content, desirable mechanical properties, tunable chemical functionalities, and interior gel-like network for the incorporation of biomolecules, make them fascinating in the field of biological/biomedical applications. In this review, various approaches will be discussed and compared to the newly developed nanogel technology in terms of efficiency and applicability for determining their potential role in combating infections in the biomedical area including implant-associated infections.
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Affiliation(s)
| | | | | | - Lisa Tromp
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, W. J. Kolff Institute, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Jelmer Sjollema
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, W. J. Kolff Institute, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Patrick van Rijn
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, W. J. Kolff Institute, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
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Kim S, Nowicki KW, Gross BA, Wagner WR. Injectable hydrogels for vascular embolization and cell delivery: The potential for advances in cerebral aneurysm treatment. Biomaterials 2021; 277:121109. [PMID: 34530233 DOI: 10.1016/j.biomaterials.2021.121109] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 08/23/2021] [Accepted: 08/27/2021] [Indexed: 12/11/2022]
Abstract
Cerebral aneurysms are vascular lesions caused by the biomechanical failure of the vessel wall due to hemodynamic stress and inflammation. Aneurysmal rupture results in subarachnoid hemorrhage often leading to death or disability. Current treatment options include open surgery and minimally invasive endovascular options aimed at secluding the aneurysm from the circulation. Cerebral aneurysm embolization with appropriate materials is a therapeutic approach to prevent rupture and the resultant clinical sequelae. Metallic platinum coils are a typical, practical option to embolize cerebral aneurysms. However, the development of an alternative treatment modality is of interest because of poor occlusion permanence, coil migration, and coil compaction. Moreover, minimizing the implanted foreign materials during therapy is of importance not just to patients, but also to clinicians in the event an open surgical approach has to be pursued in the future. Polymeric injectable hydrogels have been investigated for transcatheter embolization and cell therapy with the potential for permanent aneurysm repair. This review focuses on how the combination of injectable embolic biomaterials and cell therapy may achieve minimally invasive remodeling of a degenerated cerebral artery with promise for superior outcomes in treatment of this devastating disease.
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Affiliation(s)
- Seungil Kim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kamil W Nowicki
- Department of Neurosurgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bradley A Gross
- Department of Neurosurgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
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Lim J, Choi G, Joo KI, Cha HJ, Kim J. Embolization of Vascular Malformations via In Situ Photocrosslinking of Mechanically Reinforced Alginate Microfibers using an Optical-Fiber-Integrated Microfluidic Device. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006759. [PMID: 33543521 DOI: 10.1002/adma.202006759] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/12/2020] [Indexed: 06/12/2023]
Abstract
Embolization, which is a minimally invasive endovascular treatment, is a safe and effective procedure for treating vascular malformations (e.g., aneurysms). Hydrogel microfibers obtained via spatiotemporally controllable in situ photocrosslinking exhibit great potential for embolizing aneurysms. However, this process is challenging because of the absence of biocompatible and morphologically stable hydrogels and the difficulty in continuously spinning the microfibers via in situ photocrosslinking in extreme endovascular environments such as those involving a tortuous geometry and high absorbance. A double-crosslinked alginate-based hydrogel with tantalum nanopowder (DAT) that exploits the synergistic effect of covalent crosslinking by visible-light irradiation and ionic crosslinking using Ca2+ , which is present in the blood, is developed in this study. Furthermore, an effective strategy to design and produce an optical-fiber-integrated microfluidic device (OFI-MD) that can continuously spin hydrogel microfibers via in situ photocrosslinking in extreme endovascular environments is proposed. As an embolic material, DAT exhibits promising characteristics such as radiopacity, nondissociation, nonswelling, and constant mechanical strength in blood, in addition to excellent cyto- and hemo-compatibilities. Using OFI-MD to spin DAT microfibers continuously can help fill aneurysms safely, uniformly, and completely within the endovascular simulator without generating microscopic fragments, which demonstrates its potential as an effective embolization strategy.
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Affiliation(s)
- Jongkyeong Lim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Geunho Choi
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Kye Il Joo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Joonwon Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
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Assessment of the embolization effect of temperature-sensitive p(N-isopropylacrylamide-co-butyl methylacrylate) nanogels in the rabbit renal artery by CT perfusion and confirmed by macroscopic examination. Sci Rep 2021; 11:4826. [PMID: 33649484 PMCID: PMC7921428 DOI: 10.1038/s41598-021-84372-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/15/2021] [Indexed: 11/29/2022] Open
Abstract
Transcatheter embolization is an important treatment method in clinical therapy, and vascular embolization material plays a key role in embolization. The temperature-sensitive p(N-isopropylacrylamide-co-butyl methylacrylate) (PIB) nanogel is a novel embolic agent. To evaluate the feasibility of the nanogel as a blood vessel embolization agent, we aimed to assess the effect of embolization with PIB nanogels in the rabbit renal artery by non-invasive computed tomography (CT) perfusion, macroscopic and histological examination. Ten healthy adult Japanese rabbits were used to implement RAE of PIB nanogels in their right kidneys. CT perfusion scans were performed pre- and post-treatment at various time-points (1, 4, 8, and 12 weeks). Two rabbits were euthanized and histologically examined at each time-point, and the remaining rabbits were euthanized at 12 weeks after embolization. The RAE efficacy of the nanogels was further confirmed by macroscopic and histological examination. The renal volume and renal blood flow (BF) of the right kidney were significantly decreased post-treatment compared with those pre-treatment (volume: pre, 9278 ± 1736 mm3; post 1 week, 5155 ± 979 mm3, P < 0.0001; post 4 weeks, 3952 ± 846 mm3, P < 0.0001; post 8 weeks, 3226 ± 556 mm3, P < 0.0001; post 12 weeks, 2064 ± 507 mm3, P < 0.0001. BF: pre, 530.81 ± 51.50 ml/min/100 ml; post 1 week, 0 ml/min/100 ml, P < 0.0001; post 4 weeks, 0 ml/min/100 ml, P < 0.0001; post 8 weeks, 0 ml/min/100 ml, P < 0.0001; post 12 weeks, 0 ml/min/100 ml, P < 0.0001). No revascularization or collateral circulation was observed on histological examination during this period, and PIB nanogels were dispersed in all levels of the renal arteries. Twelve weeks after embolization, CT perfusion showed no BF in the right renal artery and renal tissue, a finding that was consistent with histological examination showing complete embolization of the right renal artery with a lack of formation of collateral vessels. The effect of embolization on PIB was adequate, with good dispersion and permanency, and could be evaluated by non-invasive and quantitative CT perfusion.
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Zhou C, Shi Q, Liu J, Huang S, Yang C, Xiong B. Effect of Inhibiting Tumor Angiogenesis After Embolization in the Treatment of HCC with Apatinib-Loaded p( N-Isopropyl-Acrylamide- co-Butyl Methyl Acrylate) Temperature-Sensitive Nanogel. J Hepatocell Carcinoma 2020; 7:447-456. [PMID: 33409168 PMCID: PMC7780989 DOI: 10.2147/jhc.s282209] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 12/11/2020] [Indexed: 12/28/2022] Open
Abstract
Background Transcatheter arterial embolization (TAE) is widely used in hepatocellular carcinoma (HCC) therapy. Tumor hypoxia often correlates with the recurrence and metastasis of the tumor and is the critical factor limiting the treatment effect of TAE. Purpose To investigate the underlying mechanism and therapeutic potential of TAE combined with apatinib-loaded p(N-isopropyl-acrylamide-co-butyl methyl acrylate) temperature-sensitive (PIB) nanogel for the suppression of rabbit VX2 liver tumor growth. Materials and Methods Sixty-five VX2 tumor-burdened rabbits were randomly divided into five groups and treated transarterially with apatinib-loaded PIB (Group PA, 0.4 mL, n=13), PIB alone (Group P, 0.4 mL, n=13), iodized oil alone (Group I, 0.4 mL, n=13), apatinib solution (Group A, 0.4 mL, n=13) or saline (Group NS, 0.4 mL, n=13). The dose of apatinib was 2 mg/kg. Tumors were harvested, sectioned and immunohistochemically stained, and the tumor growth rates and survival times in each group were measured. Blood samples and liver tissues were collected for pharmacokinetic analysis. Results The tumor growth rate in Group PA was considerably lower than the other four groups (P=0.000<0.01), and the survival time was significantly prolonged (P=0.000<0.01). The immunohistochemistry results showed that CD31 expression was significantly lower in Group PA than that of the other four groups (P=0.000<0.01). The apatinib concentration in the blood fell below 10 ng/mL within 10 min after TAE and dropped below 1 ng/mL after 8 h. The drug was released continuously in the liver for 36 days, with the highest concentration at the tumor junction (P=0.045<0.05). Conclusion PIB effectively targeted apatinib to HCC tissues, achieved a slow and sustained release of the drug in the tumor and considerably reduced the systemic drug concentration. Further experiments showed significantly prolonged survival times and an inhibitory effect on tumor growth.
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Affiliation(s)
- Chen Zhou
- Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, People's Republic of China
| | - Qin Shi
- Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, People's Republic of China
| | - Jiacheng Liu
- Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, People's Republic of China
| | - Songjiang Huang
- Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, People's Republic of China
| | - Chongtu Yang
- Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, People's Republic of China
| | - Bin Xiong
- Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Department of Radiology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People's Republic of China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, People's Republic of China
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11
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Poupart O, Schmocker A, Conti R, Moser C, Nuss KM, Grützmacher H, Mosimann PJ, Pioletti DP. In vitro Implementation of Photopolymerizable Hydrogels as a Potential Treatment of Intracranial Aneurysms. Front Bioeng Biotechnol 2020; 8:261. [PMID: 32318555 PMCID: PMC7146053 DOI: 10.3389/fbioe.2020.00261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 03/13/2020] [Indexed: 12/19/2022] Open
Abstract
Intracranial aneurysms are increasingly being treated with endovascular therapy, namely coil embolization. Despite being minimally invasive, partial occlusion and recurrence are more frequent compared to open surgical clipping. Therefore, an alternative treatment is needed, ideally combining minimal invasiveness and long-term efficiency. Herein, we propose such an alternative treatment based on an injectable, radiopaque and photopolymerizable polyethylene glycol dimethacrylate hydrogel. The rheological measurements demonstrated a viscosity of 4.86 ± 1.70 mPa.s, which was significantly lower than contrast agent currently used in endovascular treatment (p = 0.42), allowing the hydrogel to be injected through 430 μm inner diameter microcatheters. Photorheology revealed fast hydrogel solidification in 8 min due to the use of a new visible photoinitiator. The addition of an iodinated contrast agent in the precursor contributed to the visibility of the precursor injection under fluoroscopy. Using a customized light-conducting microcatheter and illumination module, the hydrogel was implanted in an in vitro silicone aneurysm model. Specifically, in situ fast and controllable injection and photopolymerization of the developed hydrogel is shown to be feasible in this work. Finally, the precursor and the polymerized hydrogel exhibit no toxicity for the endothelial cells. Photopolymerizable hydrogels are expected to be promising candidates for future intracranial aneurysm treatments.
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Affiliation(s)
- Oriane Poupart
- Laboratory of Biomechanical Orthopedics, EPFL, Lausanne, Switzerland
| | - Andreas Schmocker
- Laboratory of Applied Photonics Devices, EPFL, Lausanne, Switzerland
- Department of Chemistry and Applied Biosciences, ETH, Zurich, Switzerland
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Riccardo Conti
- Department of Chemistry and Applied Biosciences, ETH, Zurich, Switzerland
| | - Christophe Moser
- Laboratory of Applied Photonics Devices, EPFL, Lausanne, Switzerland
| | - Katja M. Nuss
- Musculoskeletal Research Unit, Department of Molecular Mechanisms of Disease, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | | | - Pascal J. Mosimann
- Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, Bern, Switzerland
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12
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He Y, Yuan T, Wang X, Shen M, Ding L, Huang L, Wang S, Kong P, Zhou X, Duan Y, Cao J. Temperature sensitive hydrogel for preoperative treatment of renal carcinoma. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110798. [PMID: 32279747 DOI: 10.1016/j.msec.2020.110798] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/29/2019] [Accepted: 02/29/2020] [Indexed: 12/22/2022]
Abstract
Surgical resection has been suggested as an effective and first-line treatment of renal cell carcinoma (RCC). However, operation is quite difficult for the patients with stage of middle-late or hypervascularized tumors. Transarterial chemoembolization (TACE) plays an important role in decreasing the size of tumors before surgery. In this work, we prepared an injectable drug-delivery system of doxorubicin-loaded temperature sensitive hydrogel for transarterial chemoembolization in RCC. The sol-gel transition behavior and rheologic analysis showed that the doxorubicin-loaded temperature sensitive hydrogel had good temperature sensitivity. Then, The X-ray experiment of hydrogel showed excellent visibility under the digital subtraction angiography and computed tomography scans in vitro and in vivo. Moreover, the studies of embolization in beagle's right kidney showed good properties in embolizing of renal arteries. In TACE therapy studies of rabbit VX2 renal tumors, angiography, computed tomography and histopathological analysis verified that TACE therapy of doxorubicin-loaded temperature sensitive hydrogel had excellent embolic efficiency as a result of repressing the tumor growth. This hydrogel could provide valuable option in the treatment of renal cell carcinoma before surgery.
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Affiliation(s)
- Yang He
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, People's Republic of China
| | - Tianwen Yuan
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, People's Republic of China
| | - Xing Wang
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, People's Republic of China
| | - Ming Shen
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's republic of China
| | - Li Ding
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's republic of China
| | - Lili Huang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's republic of China
| | - Saibo Wang
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, People's Republic of China
| | - Peng Kong
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, People's Republic of China
| | - Xing Zhou
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, People's Republic of China
| | - Yourong Duan
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's republic of China.
| | - Jun Cao
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, People's Republic of China.
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13
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Lord J, Britton H, Spain SG, Lewis AL. Advancements in the development on new liquid embolic agents for use in therapeutic embolisation. J Mater Chem B 2020; 8:8207-8218. [DOI: 10.1039/d0tb01576h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This review covers the current state-of-the-art in the development of liquid embolics for therapeutic embolisation.
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Affiliation(s)
- Jasmine Lord
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | - Hugh Britton
- Biocompatibles UK Ltd (a BTG International group company)
- Lakeview
- Camberley
- UK
| | | | - Andrew L. Lewis
- Biocompatibles UK Ltd (a BTG International group company)
- Lakeview
- Camberley
- UK
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14
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Hu J, Albadawi H, Oklu R, Chong BW, Deipolyi AR, Sheth RA, Khademhosseini A. Advances in Biomaterials and Technologies for Vascular Embolization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901071. [PMID: 31168915 PMCID: PMC7014563 DOI: 10.1002/adma.201901071] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/24/2019] [Indexed: 05/03/2023]
Abstract
Minimally invasive transcatheter embolization is a common nonsurgical procedure in interventional radiology used for the deliberate occlusion of blood vessels for the treatment of diseased or injured vasculature. A wide variety of embolic agents including metallic coils, calibrated microspheres, and liquids are available for clinical practice. Additionally, advances in biomaterials, such as shape-memory foams, biodegradable polymers, and in situ gelling solutions have led to the development of novel preclinical embolic agents. The aim here is to provide a comprehensive overview of current and emerging technologies in endovascular embolization with respect to devices, materials, mechanisms, and design guidelines. Limitations and challenges in embolic materials are also discussed to promote advancement in the field.
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Affiliation(s)
- Jingjie Hu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Hassan Albadawi
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Rahmi Oklu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Brian W Chong
- Departments of Radiology and Neurological Surgery, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Amy R. Deipolyi
- Department of Interventional Radiology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical Center, 1275 York Avenue, New York, New York 10065, USA
| | - Rahul A. Sheth
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77054, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Radiological Sciences, Department of Chemical and Biomolecular Engineering, Center for Minimally Invasive Therapeutics, California Nanosystems Institute, University of California, 410 Westwood Plaza, Los Angeles, California 90095, USA
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15
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Chen H, Gu Z, An H, Chen C, Chen J, Cui R, Chen S, Chen W, Chen X, Chen X, Chen Z, Ding B, Dong Q, Fan Q, Fu T, Hou D, Jiang Q, Ke H, Jiang X, Liu G, Li S, Li T, Liu Z, Nie G, Ovais M, Pang D, Qiu N, Shen Y, Tian H, Wang C, Wang H, Wang Z, Xu H, Xu JF, Yang X, Zhu S, Zheng X, Zhang X, Zhao Y, Tan W, Zhang X, Zhao Y. Precise nanomedicine for intelligent therapy of cancer. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9397-5] [Citation(s) in RCA: 273] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Li L, Liu Y, Li H, Guo X, He X, Geng S, Zhao H, Peng X, Shi D, Xiong B, Zhou G, Zhao Y, Zheng C, Yang X. Rational design of temperature-sensitive blood-vessel-embolic nanogels for improving hypoxic tumor microenvironment after transcatheter arterial embolization. Theranostics 2018; 8:6291-6306. [PMID: 30613298 PMCID: PMC6299701 DOI: 10.7150/thno.28845] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 11/14/2018] [Indexed: 01/01/2023] Open
Abstract
Transcatheter arterial embolization (TAE) plays an important role in clinical tumor therapy by accomplishing vessel-casting embolization of tumor arteries at all levels and suppressing tumor collateral circulation and vascular re-canalization. In this study, we describe smart blood-vessel-embolic nanogels for improving the anti-tumor efficacy of TAE therapy on hepatocellular carcinoma (HCC). Methods: In this study, an in vitro model composed of two microfluidic chips was used for simulating the tumor capillary network and analyzing artery-embolization properties. Also, blood-vessel-casting embolization of renal arteries was evaluated in normal rabbits. Using a VX2 tumor-bearing rabbit model, the therapeutic efficacy of TAE on HCC was investigated for tumor growth, necrosis, and proliferation. Neovascularization and collateral circulation were evaluated by immunofluorescent detection of hypoxia-inducible factor-1α (HIF-1α), vascular endothelial growth factor (VEGF), and CD31 following the TAE therapy of VX2 tumor-bearing rabbits. Results: Sufficient embolization of all eight levels of micro-channels was achieved in a tumor-vessel-mimetic model with two microfluidic chips using PIBI-2240, and was further confirmed in renal arteries of normal rabbit. Effective inhibition of tumor collateral circulation and vascular re-canalization was observed in VX2 tumor-bearing rabbits due to the reduced expression levels of HIF-1α, VEGF, and CD31. Conclusions: The exceptional anti-tumor effect of PIBI-2240 observed in this study suggested that it is an excellent blood-vessel-embolic material for tumor TAE therapy.
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Affiliation(s)
- Ling Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
- Shenzhen Institute of Huazhong University of Science and Technology, 518057, Shenzhen, P. R. China
| | - Yiming Liu
- Hubei Province Key Laboratory of Molecular Imaging, Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Shenzhen Institute of Huazhong University of Science and Technology, 518057, Shenzhen, P. R. China
| | - Han Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
- Shenzhen Institute of Huazhong University of Science and Technology, 518057, Shenzhen, P. R. China
| | - Xiaopeng Guo
- Hubei Province Key Laboratory of Molecular Imaging, Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaojun He
- Hubei Province Key Laboratory of Molecular Imaging, Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shinan Geng
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
- Shenzhen Institute of Huazhong University of Science and Technology, 518057, Shenzhen, P. R. China
| | - Hao Zhao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
- Shenzhen Institute of Huazhong University of Science and Technology, 518057, Shenzhen, P. R. China
| | - Xiaole Peng
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
- Shenzhen Institute of Huazhong University of Science and Technology, 518057, Shenzhen, P. R. China
| | - Dingwen Shi
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
| | - Bin Xiong
- Hubei Province Key Laboratory of Molecular Imaging, Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Guofeng Zhou
- Hubei Province Key Laboratory of Molecular Imaging, Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanbing Zhao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
- Shenzhen Institute of Huazhong University of Science and Technology, 518057, Shenzhen, P. R. China
| | - Chuansheng Zheng
- Hubei Province Key Laboratory of Molecular Imaging, Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan City, P. R. China
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17
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Zhang L, Chen F, Zheng J, Wang H, Qin X, Pan W. Chitosan-based liposomal thermogels for the controlled delivery of pingyangmycin: design, optimization and in vitro and in vivo studies. Drug Deliv 2018; 25:690-702. [PMID: 29484910 PMCID: PMC6058478 DOI: 10.1080/10717544.2018.1444684] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Pingyangmycin (PYM) has been applied clinically for many years to treat vascular malformations (VM) in China. The major limitation of PYM injections is quick diffusion from the injection site, which increases side effects, especially the possibility of pulmonary injury. In this paper, chitosan/glycerophosphate disodium (CS/GP) thermogels containing liposomes for sustained and localized PYM delivery were prepared and optimized by a three-level three-factorial Box–Behnken experimental design to evaluate the effects of different variables (the PYM concentration, CS amount and GP content), on the selected responses (cumulative percentage PYM released in 1 day, 9 days and the rate constant k). The results revealed that the optimized PYM liposomal thermogels had a controlled PYM release for 14 days in vitro, which confirmed the validity of optimization. In vitro morphological observation, cell cycle and apoptosis analysis showed an effective anti-proliferation action of PYM liposomal thermogels on human vascular endothelial cells (EA.hy926). In vivo pharmacokinetics research in rabbits displayed that compared with PYM liposomes and PYM thermogels, PYM liposomal thermogels had a better controlled delivery of PYM. Histological examination of rabbit ear veins showed that after local application with PYM lipsomal thermogels for 21 days, obvious vein thrombosis and inflammatory reaction could be observed. The above results indicated that PYM-loaded lipsomal CS/GP thermogels might have a good prospect for the treatment of VM.
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Affiliation(s)
- Ling Zhang
- a Department of Biotherapy , Cancer Research Institute, The First Affiliated Hospital of China Medical University , Shenyang , China
| | - Fen Chen
- b Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications , Liaoning University of Traditional Chinese Medicine , Shenyang , China
| | - Jiatong Zheng
- c Department of Pharmaceutics , School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
| | - Hongwei Wang
- d Department of Oromaxillofacial Head and Neck Oncology , Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology , Shanghai , China
| | - Xingjun Qin
- d Department of Oromaxillofacial Head and Neck Oncology , Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology , Shanghai , China
| | - Weisan Pan
- c Department of Pharmaceutics , School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
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18
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Tian X, Kong T, Zhu P, Kang Z, Lei L, Tang X, Wang L. Engineering embolic microparticles from a periodically-pulsating charged liquid meniscus. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.02.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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19
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Thermo-sensitive composite hydrogels based on poloxamer 407 and alginate and their therapeutic effect in embolization in rabbit VX2 liver tumors. Oncotarget 2018; 7:73280-73291. [PMID: 27602579 PMCID: PMC5341979 DOI: 10.18632/oncotarget.11789] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/25/2016] [Indexed: 12/11/2022] Open
Abstract
Interventional embolization therapy is an effective, most widely used method for inoperable liver tumors. Blood-vessel-embolic agents were essential in transarterial embolization (TAE). In this work, thermo-sensitive composite hydrogels based on poloxamer 407, sodium alginate, hydroxymethyl cellulose and iodixanol (PSHI), together with Ca2+ (PSHI-Ca2+) were prepared as liquid embolic agents for TAE therapy to liver cancer. With increasing temperature, PSHI exhibited two phase states: a flowing sol and a shrunken gel. Rheology tests showed good fluidity and excellent viscoelastic behavior with a gelation temperature (GT) of 26.5°C. The studies of erosion indicated that PSHI had calcium ion-related erosion characteristics and showed a slow erosion rate in an aqueous environment. When incubated with L929 cells, the thermo-sensitive composite hydrogels had low cytotoxicity in vitro. The results of analyzing the digital subtraction angiography and computed tomography images obtained from in vitro and in vivo assays indicated a good embolic effect in the renal arteries of normal rabbits. Angiography and histological studies on VX2 tumor-bearing rabbits indicated that PSHI-Ca2+ successfully occluded the tumors, including the peripheral vessels. In conclusion, PSHI-Ca2+ was a promising embolic agent for transarterial embolization therapy.
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20
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Avery RK, Albadawi H, Akbari M, Zhang YS, Duggan MJ, Sahani DV, Olsen BD, Khademhosseini A, Oklu R. An injectable shear-thinning biomaterial for endovascular embolization. Sci Transl Med 2017; 8:365ra156. [PMID: 27856795 DOI: 10.1126/scitranslmed.aah5533] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 10/28/2016] [Indexed: 01/11/2023]
Abstract
Improved endovascular embolization of vascular conditions can generate better patient outcomes and minimize the need for repeat procedures. However, many embolic materials, such as metallic coils or liquid embolic agents, are associated with limitations and complications such as breakthrough bleeding, coil migration, coil compaction, recanalization, adhesion of the catheter to the embolic agent, or toxicity. Here, we engineered a shear-thinning biomaterial (STB), a nanocomposite hydrogel containing gelatin and silicate nanoplatelets, to function as an embolic agent for endovascular embolization procedures. STBs are injectable through clinical catheters and needles and have hemostatic activity comparable to metallic coils, the current gold standard. In addition, STBs withstand physiological pressures without fragmentation or displacement in elastomeric channels in vitro and in explant vessels ex vivo. In vitro experiments also indicated that STB embolization did not rely on intrinsic thrombosis as coils did for occlusion, suggesting that the biomaterial may be suitable for use in patients on anticoagulation therapy or those with coagulopathy. Using computed tomography imaging, the biomaterial was shown to fully occlude murine and porcine vasculature in vivo and remain at the site of injection without fragmentation or nontarget embolization. Given the advantages of rapid delivery, in vivo stability, and independent occlusion that does not rely on intrinsic thrombosis, STBs offer an alternative gel-based embolic agent with translational potential for endovascular embolization.
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Affiliation(s)
- Reginald K Avery
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA.,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Hassan Albadawi
- Department of Surgery, Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Mohsen Akbari
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Michael J Duggan
- Department of Surgery, Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02144, USA
| | - Dushyant V Sahani
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Bradley D Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA. .,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Physics, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rahmi Oklu
- Biomaterials Innovation Research Center, Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA. .,Division of Vascular and Interventional Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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21
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Zhang Q, Chen X, Geng S, Wei L, Miron RJ, Zhao Y, Zhang Y. Nanogel-based scaffolds fabricated for bone regeneration with mesoporous bioactive glass and strontium: In vitro and in vivo characterization. J Biomed Mater Res A 2017; 105:1175-1183. [PMID: 27998017 DOI: 10.1002/jbm.a.35980] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/24/2016] [Accepted: 12/06/2016] [Indexed: 01/03/2023]
Abstract
The delivery of novel bioactive scaffolds for the repair of bone defects remains a prominent challenge worldwide. Currently osteoporosis, a disease caused by low bone mineral density affects over 200 million people worldwide with up to half of this population experiencing at least one fracture within their lifetime. Recently temperature-sensitive p(N-isopropylacrylamide-co-butyl methylacrylate) nanogel (PIB nanogel) scaffolds have emerged as biomaterial candidate for regenerative therapies. It has the advantage of being injected from syringes as a soluble gel form (capable of delivering growth and/or living progenitor cells) yet hardens once it reaches body temperatures. Although this material demonstrates optimal clinical delivery of scaffolds, its main drawback is its low osteoconductivity and bioactivity. Recently we have demonstrated that mesoporous bioactive glass (MBG) loaded with strontium was able to regenerate osteoporotic defects in vivo and enhance osteoblast differentiation in vitro. The aim of this study was to combine the advantages of these two therapies and prepare PIB-nanogel scaffolds containing Sr-MBG and investigate their ability to regenerate femur defects created in ovarectamized rats. The results demonstrate that groups containing Sr-MBG within the nanogel formulation had significantly higher new bone formation when compared with other modalities. We further demonstrate that although nanogel demonstrated poor osteogenic ability, the addition of osteoblasts worked synergistically with Sr-MBG particles to enhance the regeneration of the created femur defects in osteoporotic animals. In conclusion, PIB nanogel scaffolds are a viable treatment modality for bone tissue engineering and may serve as a carrier-scaffold for osteogenic cells and/or bioactive scaffolds such as Sr-MBG. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1175-1183, 2017.
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Affiliation(s)
- Qiao Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
- Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Xiaohui Chen
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
- Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Shinan Geng
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Lingfei Wei
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Richard J Miron
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Yanbing Zhao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Yufeng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
- Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, People's Republic of China
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22
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Wang Q, Qian K, Liu S, Yang Y, Liang B, Zheng C, Yang X, Xu H, Shen AQ. X-ray Visible and Uniform Alginate Microspheres Loaded with in Situ Synthesized BaSO4 Nanoparticles for in Vivo Transcatheter Arterial Embolization. Biomacromolecules 2015; 16:1240-6. [PMID: 25728288 DOI: 10.1021/acs.biomac.5b00027] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Kun Qian
- Department
of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | | | | | - Bin Liang
- Department
of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chuansheng Zheng
- Department
of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | | | | | - Amy Q. Shen
- Micro/Bio/Nanofluidics
Unit, Okinawa Institute of Science and Technology Graduate University,
Japan, Mechanical Engineering, University of Washington, Seattle 98195, United States
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23
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Chen X, Zhao Y, Geng S, Miron RJ, Zhang Q, Wu C, Zhang Y. In vivo experimental study on bone regeneration in critical bone defects using PIB nanogels/boron-containing mesoporous bioactive glass composite scaffold. Int J Nanomedicine 2015; 10:839-46. [PMID: 25653525 PMCID: PMC4309792 DOI: 10.2147/ijn.s69001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
PURPOSE In the present study, the fabrication of novel p(N-isopropylacrylamide-co-butyl methylacrylate) (PIB) nanogels was combined with boron-containing mesoporous bioactive glass (B-MBG) scaffolds in order to improve the mechanical properties of PIB nanogels alone. Scaffolds were tested for mechanical strength and the ability to promote new bone formation in vivo. PATIENTS AND METHODS To evaluate the potential of each scaffold in bone regeneration, ovariectomized rats were chosen as a study model to determine the ability of PIB nanogels to stimulate bone formation in a complicated anatomical bone defect. PIB nanogels and PIB nanogels/B-MBG composites were respectively implanted into ovariectomized rats with critical-sized femur defects following treatment periods of 2, 4, and 8 weeks post-implantation. RESULTS Results from the present study demonstrate that PIB nanogels/B-MBG composites showed greater improvement in mechanical strength when compared to PIB nanogels alone. In vivo, hematoxylin and eosin staining revealed significantly more newly formed bone in defects containing PIB nanogels/B-MBG composite scaffolds when compared to PIB nanogels alone. Tartrate-resistant acid phosphatase-positive staining demonstrated that both scaffolds were degraded over time and bone remodeling occurred in the surrounding bone defect as early as 4 weeks post-implantation. CONCLUSION The results from the present study indicate that PIB nanogels are a potential bone tissue engineering biomaterial able to treat defects of irregular shapes and deformities as an injectable, thermoresponsive, biocompatible hydrogel which undergoes rapid thermal gelation once body temperature is reached. Furthermore, its combination with B-MBG scaffolds improves the mechanical properties and ability to promote new bone formation when compared to PIB nanogels alone.
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Affiliation(s)
- Xiaohui Chen
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China ; Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Yanbing Zhao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Shinan Geng
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Richard J Miron
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Qiao Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Yufeng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China ; Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, People's Republic of China
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24
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Chen F, Song S, Wang H, Zhang W, Lin C, Ma S, Ye T, Zhang L, Yang X, Qin X, Pan W. Injectable chitosan thermogels for sustained and localized delivery of pingyangmycin in vascular malformations. Int J Pharm 2014; 476:232-40. [PMID: 25283699 DOI: 10.1016/j.ijpharm.2014.09.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/27/2014] [Accepted: 09/30/2014] [Indexed: 01/08/2023]
Abstract
Pingyangmycin (PYM) is an effective drug to treat vascular malformations (VM), but can easily diffuse from the injection site, which will reduce its therapeutic effect and increase side effect. Our study was to evaluate PYM-loaded chitosan thermogels for sustained and localized embolization therapy. It was shown that in vitro release of PYM thermogels could be delayed up to 12 days. The results measured by MTT assay showed that PYM thermogels could inhibit proliferation and induce apoptosis of EA.hy926 cells in a concentration and time dependent manner. In vivo pharmacokinetics study demonstrated that compared with PYM injections, PYM thermogels had a better sustained delivery of PYM. Macroscopic observation and histological examination of rabbit ear veins displayed that after administration with PYM thermogels for 18 days, obvious venous embolization and inflammatory response could be found. These results indicate that PYM thermogels is likely to achieve excellent prospects for VM treatment.
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Affiliation(s)
- Fen Chen
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Shuangshuang Song
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Hongwei Wang
- Department of Oromaxillofacial Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, PR China
| | - Wenji Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Congcong Lin
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Shilin Ma
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Tiantian Ye
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Ling Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Xinggang Yang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Xingjun Qin
- Department of Oromaxillofacial Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, PR China.
| | - Weisan Pan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China.
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25
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Ma Y, Wan J, Qian K, Geng S, He N, Zhou G, Zhao Y, Yang X. The studies on highly concentrated complex dispersions of gold nanoparticles and temperature-sensitive nanogels and their application as new blood-vessel-embolic materials with high-resolution angiography. J Mater Chem B 2014; 2:6044-6053. [DOI: 10.1039/c4tb00748d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
High colloid stability of highly concentrated Au nanoparticles (GNPs) for use in blood-pool imaging was achieved, using p(N-isopropylacrylamide-co-butyl methylacrylate) nanogels.
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Affiliation(s)
- Yingying Ma
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan, P. R. China
| | - Jiangshan Wan
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan, P. R. China
| | - Kun Qian
- Interventional Radiology Department of Wuhan Union Hospital
- Huazhong University of Science and Technology
- Wuhan, P. R. China
| | - Shinan Geng
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan, P. R. China
| | - Nijun He
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan, P. R. China
| | - Guofeng Zhou
- Interventional Radiology Department of Wuhan Union Hospital
- Huazhong University of Science and Technology
- Wuhan, P. R. China
| | - Yanbing Zhao
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan, P. R. China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan, P. R. China
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