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Gao F, Rafiq M, Cong H, Yu B, Shen Y. Current research status and development prospects of embolic microspheres containing biological macromolecules and others. Int J Biol Macromol 2024; 267:131494. [PMID: 38608974 DOI: 10.1016/j.ijbiomac.2024.131494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/27/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
Transcatheter arterial embolization (TACE) has been used in the treatment of malignant tumors, sudden hemorrhage, uterine fibroids, and other diseases, and with advances in imaging techniques and devices, materials science, and drug release technology, more and more embolic agents that are drug-carrying, self-imaging, or have multiple functions are being developed. Microspheres provide safer and more effective therapeutic results as embolic agents, with their unique spherical appearance and good embolic properties. Embolic microspheres are the key to arterial embolization, blocking blood flow and nutrient supply to the tumor target. This review summarizes some of the currently published embolic microspheres, classifies embolic microspheres according to matrix, and summarizes the characteristics of the microsphere materials, the current status of research, directions, and the value of existing and potential applications. It provides a direction to promote the development of embolic microspheres towards multifunctionalization, and provides a reference to promote the research and application of embolic microspheres in the treatment of tumors.
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Affiliation(s)
- Fengyuan Gao
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Muhammad Rafiq
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Hailin Cong
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China; School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China.
| | - Bing Yu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China.
| | - Youqing Shen
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China; Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Center for Bionanoengineering, and Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
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Sreedharan M, Vijayamma R, Liyaskina E, Revin VV, Ullah MW, Shi Z, Yang G, Grohens Y, Kalarikkal N, Ali Khan K, Thomas S. Nanocellulose-Based Hybrid Scaffolds for Skin and Bone Tissue Engineering: A 10-Year Overview. Biomacromolecules 2024; 25:2136-2155. [PMID: 38448083 DOI: 10.1021/acs.biomac.3c00975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Cellulose, the most abundant polymer on Earth, has been widely utilized in its nanoform due to its excellent properties, finding applications across various scientific fields. As the demand for nanocellulose continues to rise and its ease of use becomes apparent, there has been a significant increase in research publications centered on this biomaterial. Nanocellulose, in its different forms, has shown tremendous promise as a tissue engineered scaffold for regeneration and repair. Particularly, nanocellulose-based composites and scaffolds have emerged as highly demanding materials for both soft and hard tissue engineering. Medical practitioners have traditionally relied on collagen and its analogue, gelatin, for treating tissue damage. However, the limited mechanical strength of these biopolymers restricts their direct use in various applications. This issue can be overcome by making hybrids of these biopolymers with nanocellulose. This review presents a comprehensive analysis of the recent and most relevant publications focusing on hybrid composites of collagen and gelatin with a specific emphasis on their combination with nanocellulose. While bone and skin tissue engineering represents two areas where a majority of researchers are concentrating their efforts, this review highlights the use of nanocellulose-based hybrids in these contexts.
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Affiliation(s)
- Mridula Sreedharan
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India
| | - Raji Vijayamma
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India
- School of Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India
| | - Elena Liyaskina
- Department of Biotechnology, Biochemistry and Bioengineering, National Research Ogarev Mordovia State University, Saransk 430005, Russia
| | - Viktor V Revin
- Department of Biotechnology, Biochemistry and Bioengineering, National Research Ogarev Mordovia State University, Saransk 430005, Russia
| | - Muhammad Wajid Ullah
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhijun Shi
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yves Grohens
- Univ. Bretagne Sud, UMR CNRS 6027, IRDL, F-56321 Lorient, France
| | - Nandakumar Kalarikkal
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India
- School of Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India
- School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, Kerala 686560, India
| | - Khalid Ali Khan
- Applied College, Mahala Campus and the Unit of Bee Research and Honey Production/Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Sabu Thomas
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India
- School of Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India
- School of Energy Materials, Mahatma Gandhi University, Kottayam, Kerala 686560, India
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Patel R, Gómez-Cerezo MN, Huang H, Grøndahl L, Lu M. Degradation behaviour of porous poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) scaffolds in cell culture. Int J Biol Macromol 2024; 257:128644. [PMID: 38065444 DOI: 10.1016/j.ijbiomac.2023.128644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/16/2023] [Accepted: 12/04/2023] [Indexed: 01/27/2024]
Abstract
Exploring the degradation behaviour of biomaterials in a complex in vitro physiological environment can assist in predicting their performance in vivo, yet this aspect remains largely unexplored. In this study, the in vitro degradation over 12 weeks of porous poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) bone scaffolds in human osteoblast (hOB) culture was investigated. The objective was to evaluate how the presence of cells influenced both the degradation behaviour and mechanical stability of these scaffolds. The molecular weight (Mw) of the scaffolds decreased with increasing incubation time and the Mw reduction rate (6.2 ± 0.4 kg mol-1 week-1) was similar to that observed when incubated in phosphate buffered saline (PBS) solution, implying that the scaffolds underwent hydrolytic degradation in hOB culture. The mass of the scaffolds increased by 0.8 ± 0.2 % in the first 4 weeks, attributed to cells attachment and extracellular matrix (ECM) deposition including biomineralisation. During the first 8 weeks, the nominal compressive modulus, E⁎, of the scaffolds remained constant. However, it increased significantly from Week 8 to 12, with increments of 55 % and 42 % in normal and lateral directions, respectively, attributed to the reinforcement effect of cells, ECM and minerals attached on the surface of the scaffold. This study has highlighted, that while the use of PBS in degradation studies is suitable for evaluating Mw changes it cannot predict changes in mechanical properties to PHBV scaffolds in the presence of cells and culture media. Furthermore, the PHBV scaffolds had mechanical stability in cell culture for 12 weeks validating their suitability for tissue engineering applications.
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Affiliation(s)
- Rushabh Patel
- School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Maria Natividad Gómez-Cerezo
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital, 12 de Octubre i+12, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Han Huang
- School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Lisbeth Grøndahl
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Mingyuan Lu
- School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, QLD 4072, Australia.
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Wu K, Ma S, Xu X, Liu Y, Tian C, Zhang C, Shan J, Li Z, Ren K, Ren J, Han X, Zhao Y. Celecoxib and cisplatin dual-loaded microspheres synergistically enhance transarterial chemoembolization effect of hepatocellular carcinoma. Mater Today Bio 2024; 24:100927. [PMID: 38234462 PMCID: PMC10792487 DOI: 10.1016/j.mtbio.2023.100927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/10/2023] [Accepted: 12/18/2023] [Indexed: 01/19/2024] Open
Abstract
Transarterial chemoembolization (TACE) is a first-line treatment for intermediate to advanced-stage liver cancer, with drug-eluting microspheres commonly used as embolic agents. However, currently available drug-eluting microspheres suffer from low drug-loading capacity and limited drug options. In this work, we developed polydopamine-modified polyvinyl alcohol dual-drug-loaded microspheres encapsulating celecoxib and cisplatin (referred to as PCDMS). Physicochemical characterization revealed that the surface of the microspheres displayed increased roughness after polydopamine modification, and celecoxib and cisplatin were successfully loaded onto the microsphere surface. In vitro cell experiments demonstrated that the PCDMS significantly inhibited the proliferation and migration of highly metastatic human liver cancer cells (MHCC-97H) and human liver cancer cells (SMMC-7721). Furthermore, the dual-loaded microspheres exhibited remarkable tumor growth inhibition and reshaped the tumor microenvironment in both subcutaneous H22 liver cancer model in Balb/c mice and intrahepatic VX2 tumor model in New Zealand rabbits, demonstrating a synergistic antitumor effect where 1 + 1>2. This work provides a potential therapeutic approach for the treatment of refractory liver cancer and holds significant translational potential.
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Affiliation(s)
- Kunpeng Wu
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Shengnan Ma
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xiaohong Xu
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Yiming Liu
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Chuan Tian
- Department of Interventional Medical Center, the Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Shandong, 266000, Qingdao, China
| | - Chengzhi Zhang
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Jiheng Shan
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Zongming Li
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Kewei Ren
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Xinwei Han
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
| | - Yanan Zhao
- Department of Interventional Radiology, Key Laboratory of Interventional Radiology of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, China
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Xiao T, Li B, Lai R, Liu Z, Xiong S, Li X, Zeng Y, Jiao S, Tang Y, Lu Y, Xu Y. Active pharmaceutical ingredient-ionic liquids assisted follicular co-delivery of ferulic acid and finasteride for enhancing targeted anti-alopecia. Int J Pharm 2023; 648:123624. [PMID: 37984619 DOI: 10.1016/j.ijpharm.2023.123624] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/03/2023] [Accepted: 11/17/2023] [Indexed: 11/22/2023]
Abstract
Androgenetic alopecia (AGA) is the primary hair loss with impairing patients' quality of life. Finasteride (FIN) is an SRD5A2 inhibitor for AGA treatment, but oral FIN causes systemic adverse effects. Topical FIN delivery is anticipated to overcome this problem. Ferulic acid (FA) is a natural phenolic acid with vascular remodeling and anti-inflammatory effects. Herein, an active pharmaceutical ingredient ionic liquid (API IL) based on choline and FA (CF-IL) is for the first time constructed to load FIN for fabricating FIN CF-IL. CF-IL aims to act as carriers and cargos and enhance hair follicle (HF) co-delivery of FA and FIN for synergistic anti-alopecia. Thermal and spectroscopic analysis combined with quantum chemistry calculations and molecular dynamics confirm the formation of CF-IL. The CF-IL simultaneously increases the solubility of FA (∼648-fold) and FIN (∼686-fold), enhances the permeation and retention of FIN and FA through the follicular pathway, and promotes cellular uptake. FIN CFIL regulates the abnormal mRNA expressions in dihydrotestosterone-irritated hDPCs, and promotes hair regrowth in AGA mice in a combined manner with FIN and FA. These findings suggest that FA-based API IL is a promising approach for percutaneously co-delivering FA and FIN to HF, providing an enhanced targeting treatment for AGA.
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Affiliation(s)
- Ting Xiao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Bin Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Rongrong Lai
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ziyi Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Sha Xiong
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiaojuan Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yao Zeng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Siwen Jiao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yujia Tang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yi Lu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yuehong Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
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Rehan T, Tahir A, Sultan A, Alabbosh KF, Waseem S, Ul-Islam M, Khan KA, Ibrahim EH, Ullah MW, Shah N. Mitigation of Benzene-Induced Haematotoxicity in Sprague Dawley Rats through Plant-Extract-Loaded Silica Nanobeads. TOXICS 2023; 11:865. [PMID: 37888715 PMCID: PMC10610980 DOI: 10.3390/toxics11100865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023]
Abstract
Benzene, a potent carcinogen, is known to cause acute myeloid leukaemia. While chemotherapy is commonly used for cancer treatment, its side effects have prompted scientists to explore natural products that can mitigate the haematotoxic effects induced by chemicals. One area of interest is nano-theragnostics, which aims to enhance the therapeutic potential of natural products. This study aimed to enhance the effects of methanolic extracts from Ocimum basilicum, Rosemarinus officinalis, and Thymus vulgaris by loading them onto silica nanobeads (SNBs) for targeted delivery to mitigate the benzene-induced haematotoxic effects. The SNBs, 48 nm in diameter, were prepared using a chemical method and were then loaded with the plant extracts. The plant-extract-loaded SNBs were then coated with carboxymethyl cellulose (CMC). The modified SNBs were characterized using various techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-visible spectroscopy, and Fourier transform infrared (FTIR) spectroscopy. The developed plant-extract-loaded and CMC-modified SNBs were administered intravenously to benzene-exposed rats, and haematological and histopathological profiling was conducted. Rats exposed to benzene showed increased liver and spleen weight, which was mitigated by the plant-extract-loaded SNBs. The differential white blood cell (WBC) count was higher in rats with benzene-induced haematotoxicity, but this count decreased significantly in rats treated with plant-extract-loaded SNBs. Additionally, blast cells observed in benzene-exposed rats were not found in rats treated with plant-extract-loaded SNBs. The SNBs facilitated targeted drug delivery of the three selected medicinal herbs at low doses. These results suggest that SNBs have promising potential as targeted drug delivery agents to mitigate haematotoxic effects induced by benzene in rats.
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Affiliation(s)
- Touseef Rehan
- Department of Biochemistry, Women University Mardan, Mardan 23200, Pakistan
| | - Anum Tahir
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Aneesa Sultan
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | | | - Shahid Waseem
- Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Mazhar Ul-Islam
- Department of Chemical Engineering, College of Engineering, Dhofar University, Salalah 211, Oman
| | - Khalid Ali Khan
- Unit of Bee Research and Honey Production, Research Center for
Advanced Materials Science (RCAMS), Applied College, King Khalid University, Abha 61413, Saudi Arabia
| | - Essam H. Ibrahim
- Biology Department, Faculty of Science, Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Blood Products Quality Control and Research Department, National Organization for Research and Control of Biologicals, Cairo 12611, Egypt
| | - Muhammad Wajid Ullah
- Biofuels Institute, School of the Environmental and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Nasrullah Shah
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
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Shen Y, Zhang B, Yi Z, Zhang L, Ling J, Wang S, Sun Z, Iqbal MZ, Kong X. Microfluidic fabrication of X-ray-visible sodium hyaluronate microspheres for embolization. RSC Adv 2023; 13:20512-20519. [PMID: 37435366 PMCID: PMC10331790 DOI: 10.1039/d3ra02812g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 06/27/2023] [Indexed: 07/13/2023] Open
Abstract
Catheter embolization is a minimally invasive technique that relies on embolic agents and is now widely used to treat various high-prevalence medical diseases. Embolic agents usually need to be combined with exogenous contrasts to visualize the embolotherapy process. However, the exogenous contrasts are quite simply washed away by blood flow, making it impossible to monitor the embolized location. To solve this problem, a series of sodium hyaluronate (SH) loaded with bismuth sulfide (Bi2S3) nanorods (NRs) microspheres (Bi2S3@SH) were prepared in this study by using 1,4-butaneglycol diglycidyl ether (BDDE) as a crosslinker through single-step microfluidics. Bi2S3@SH-1 microspheres showed the best performance among other prepared microspheres. The fabricated microspheres had uniform size and good dispersibility. Furthermore, the introduction of Bi2S3 NRs synthesized by a hydrothermal method as Computed Tomography (CT) contrast agents improved the mechanical properties of Bi2S3@SH-1 microspheres and endowed the microspheres with excellent X-ray impermeability. The blood compatibility and cytotoxicity test showed that the Bi2S3@SH-1 microspheres had good biocompatibility. In particular, the in vitro simulated embolization experiment results indicate that the Bi2S3@SH-1 microspheres had excellent embolization effect, especially for the small-sized blood vessels of 500-300 and 300 μm. The results showed the prepared Bi2S3@SH-1 microspheres have good biocompatibility and mechanical properties, as well as certain X-ray visibility and excellent embolization effects. We believe that the design and combination of this material has good guiding significance in the field of embolotherapy.
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Affiliation(s)
- Yang Shen
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
| | - Baoqu Zhang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
| | - Zihan Yi
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
| | - Lan Zhang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
| | - Jing Ling
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
| | - Shibo Wang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
| | - Zhichao Sun
- The Department of Medical Imaging, The First Medical College of Zhejiang Chinese Medical University Hangzhou 310053 China
| | - M Zubair Iqbal
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
| | - Xiangdong Kong
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering Hangzhou 310018 China
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Fang Y, Chen F, Qin X, Zhang B, Mei X, Lu W, Li N. Cu–ZnO Composite Nanoparticles Loaded Catalytic Fiber Efficiently Inactivates Bacteria by Generating Active Species Without Needing Light. Catal Letters 2023. [DOI: 10.1007/s10562-022-04070-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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9
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Pooprommin P, Manaspon C, Dwivedi A, Mazumder A, Sangkaew S, Wanmasae S, Tangpong J, Ongtanasup T, Eawsakul K. Alginate/pectin dressing with niosomal mangosteen extract for enhanced wound healing: evaluating skin irritation by structure-activity relationship. Heliyon 2022; 8:e12032. [PMID: 36506386 PMCID: PMC9727648 DOI: 10.1016/j.heliyon.2022.e12032] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/28/2022] [Accepted: 11/24/2022] [Indexed: 12/12/2022] Open
Abstract
Most modern wound dressings assist the wound-healing process. In contrast, conventional wound dressings have limited antibacterial activity and promote sporadic fibroblast growth. Therefore, wound dressings with prolonged substance release must be improved. This research aimed to develop hydrogel films. These were synthesized from alginate and pectin, incorporated with mangosteen extract (ME), and encapsulated in niosomes (ME-loaded niosomes). Subsequently, we examined the in vitro release and physical characteristics of ME-loaded niosomes. These characteristics included particle pH, size, charge, polydispersity index (PDI), and drug loading properties. These properties included drug loading content (DLC), entrapment efficiency (EE), and yield (Y). Additionally, we examined the swelling ratio and biological characteristics of the hydrogel film. These characteristics included antibacterial activity, cytotoxicity (L929), cell attachment to the tested materials, cell migration, hemocompatibility, and in vivo irritation. Significant results were obtained using a 2:1 niosome preparation containing Span60 and cholesterol. Ratio influenced size, charge, PDI, DLC, EE, and Y. The results were 225.5 ± 5.83 nm, negatively charged, 0.38, 16.2 ± 0.87%, 64.8 ± 3.49%, and 87.3 ± 3.09%, respectively. Additionally, the release of encapsulated ME was pH sensitive because 85% of the ME can be released at a pH of 5.5 within seven days and decrease to 70% at a pH of 7.4. The maximum swelling ratios of patches with 0.5% and 1% Ca2+ crosslinking were 867 wt% and 1,025 wt%, respectively, after 30 min. These results suggested that a medium dose (15 mg) of niosomal ME incorporated in a hydrogel film provided better bacterial inhibition, cell migration, and cell adhesion in an in vitro model. Additionally, no toxicity was observed in the fibroblasts and red blood cells. Therefore, given the above-mentioned advantages, this product can be a promising candidate for wound dressing applications.
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Affiliation(s)
| | - Chawan Manaspon
- Biomedical Engineering Institute, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Anupma Dwivedi
- Faculty of Pharmacy, Charles University, Hradec Králové, Czech Republic
| | - Anisha Mazumder
- Faculty of Pharmacy, Charles University, Hradec Králové, Czech Republic
| | - Surat Sangkaew
- School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Smith Wanmasae
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Jitbanjong Tangpong
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Tassanee Ongtanasup
- School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Komgrit Eawsakul
- School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand,Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand,Corresponding author.
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10
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Huang H, Huang C, Xu C, Liu R. Development and characterization of lotus-leaf-inspired bionic antibacterial adhesion film through beeswax. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2022.100906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Bakadia BM, Boni BOO, Ahmed AAQ, Zheng R, Shi Z, Ullah MW, Lamboni L, Yang G. In Situ Synthesized Porous Bacterial Cellulose/Poly(Vinyl Alcohol)-Based Silk Sericin and Azithromycin Release System for Treating Chronic Wound Biofilm. Macromol Biosci 2022; 22:e2200201. [PMID: 35962940 DOI: 10.1002/mabi.202200201] [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: 05/24/2022] [Revised: 07/05/2022] [Indexed: 11/09/2022]
Abstract
Chronic wounds are associated with infectious microbial complex communities called biofilms. The management of chronic wound infection is limited by the complexity of selecting an appropriate antimicrobial dressing with antibiofilm activity due to antimicrobial resistance in biofilms. Herein, the in situ developed bacterial cellulose/poly(vinyl alcohol) (BC-PVA) composite is ex situ modified with genipin-crosslinked silk sericin (SS) and azithromycin (AZM) (SSga). The composite is evaluated as a wound dressing material for preventing the development, dispersion, and/or eradication of microbial biofilm. FTIR spectroscopy confirms the intermolecular interactions between the components of BC-PVA@SSga scaffolds. The addition of PVA during BC production significantly increases the porosity from 53.5 ± 2.3 to 83.5 ± 2.9%, the pore size from 2.3 ± 1.9 to 16.8 ± 4.5 μm, the fiber diameter from 35.5 ± 10 to 120 ± 27.4 nm, and improves the thermal stability and flexibility. Studies using bacteria and fungi indicate high inhibition and disruption of biofilms upon AZM addition. In vitro biocompatibility analysis confirms the nontoxic nature of BC-PVA@SSga towards HaCaT and NIH3T3 cells, whereas the addition of SS enhanced cell proliferation. The developed BC-PVA@SSga accelerated wound healing in the infected mouse model, thus could be a promising wound dressing biomaterial. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Bianza Moise Bakadia
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.,Institut Superieur des Techniques Medicales de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Biaou Oscar Ode Boni
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Abeer Ahmed Qaed Ahmed
- Department of Environmental Sciences, School of Agriculture and Environmental Sciences, University of South Africa, P.O. Box 392, Florida, Johannesburg, 1710, South Africa
| | - Ruizhu Zheng
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Zhijun Shi
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Muhammad Wajid Ullah
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Lallepak Lamboni
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.,Laboratoire de Biologie Moléculaire et Virologie, Institut National d'Hygiène-Togo, 26 Rue Nangbéto, Quartier Administratif- PO. Box 1396, Lomé, Togo
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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12
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Preparation and characterization of PLA microspheres as drug delivery system for controlled release of Cetirizine with carbon dots as drug carrier. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04331-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Mendes AI, Rebelo R, Aroso I, Correlo VM, Fraga AG, Pedrosa J, Marques AP. Development of an antibiotics delivery system for topical treatment of the neglected tropical disease Buruli ulcer. Int J Pharm 2022; 623:121954. [PMID: 35760261 DOI: 10.1016/j.ijpharm.2022.121954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/31/2022] [Accepted: 06/21/2022] [Indexed: 01/10/2023]
Abstract
Skin infection by Mycobacterium ulcerans causes Buruli ulcer (BU) disease, a serious condition that significantly impact patient' health and quality of life and can be very difficult to treat. Treatment of BU is based on daily systemic administration of antibiotics for at least 8 weeks and presents drawbacks associated with the mode and duration of drug administration and potential side effects. Thus, new therapeutic strategies are needed to improve the efficacy and modality of BU therapeutics, resulting in a more convenient and safer antibiotic regimen. Hence, we developed a dual delivery system based on poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) microparticles and a gellan gum (GG) hydrogel for delivery of rifampicin (RIF) and streptomycin (STR), two antibiotics used for BU treatment. RIF was successfully loaded into PHBV microparticles, with an encapsulation efficiency of 43%, that also revealed a mean size of 10 µm, spherical form and rough topography. These microparticles were further embedded in a GG hydrogel containing STR. The resultant hydrogel showed a porous microstructure that conferred a high water retention capability (superior to 2000%) and a controlled release of both antibiotics. Also, biological studies revealed antibacterial activity against M. ulcerans, and a good cytocompatibility in a fibroblast cell line. Thus, the proposed drug delivery system can constitute a potential topical approach for treatment of skin ulcers caused by BU disease.
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Affiliation(s)
- Ana I Mendes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rita Rebelo
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
| | - Ivo Aroso
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
| | - Vitor M Correlo
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
| | - Alexandra G Fraga
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Pedrosa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Alexandra P Marques
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
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14
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Li Z, Chen Z, Gao Y, Xing Y, Zhou Y, Luo Y, Xu W, Chen Z, Gao X, Gupta K, Anbalakan K, Chen L, Liu C, Kong J, Leo HL, Hu C, Yu H, Guo Q. Shape memory micro-anchors with magnetic guidance for precision micro-vascular deployment. Biomaterials 2022; 283:121426. [DOI: 10.1016/j.biomaterials.2022.121426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 01/21/2022] [Accepted: 02/17/2022] [Indexed: 12/28/2022]
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15
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Development of PVA-based microsphere as a potential embolization agent. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 135:112677. [DOI: 10.1016/j.msec.2022.112677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/06/2022] [Accepted: 01/19/2022] [Indexed: 12/12/2022]
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16
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Yi Z, Sun Z, Shen Y, Luo D, Zhang R, Ma S, Zhao R, Farheen J, Iqbal MZ, Kong X. The sodium hyaluronate microspheres fabricated by solution drying for transcatheter arterial embolization. J Mater Chem B 2022; 10:4105-4114. [DOI: 10.1039/d2tb00413e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transcatheter arterial embolization (TAE) is an effective therapeutic method for several clinical ailments. Interminably, the polymer microsphere is reflected as one of the idyllic embolic materials due to the exceptional...
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17
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Prostate Artery Embolization-Review of Indications, Patient Selection, Techniques and Results. J Clin Med 2021; 10:jcm10215139. [PMID: 34768659 PMCID: PMC8584630 DOI: 10.3390/jcm10215139] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 12/28/2022] Open
Abstract
Lower urinary tract symptoms (LUTS) due to benign prostatic hypertrophy (BPH) are a very common problem in men ranging from mild urinary symptoms to recurrent urinary tract infections or renal failure. Numerous treatment options are available ranging from conservative medical therapies to more invasive surgical options. Prostate artery embolization (PAE) has emerged as a novel treatment option for this common problem with clinical efficacy comparable to the current surgical gold standard, transurethral resection of the prostate (TURP). PAE offers fewer complications and side effects without a need for general anesthesia or hospitalization. This review discusses the indications for prostate artery embolization in addition to LUTS, patient evaluation in patients with LUTS, PAE technique and clinical results, with an emphasis on efficacy and safety.
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Chotchindakun K, Pekkoh J, Ruangsuriya J, Zheng K, Unalan I, Boccaccini AR. Fabrication and Characterization of Cinnamaldehyde-Loaded Mesoporous Bioactive Glass Nanoparticles/PHBV-Based Microspheres for Preventing Bacterial Infection and Promoting Bone Tissue Regeneration. Polymers (Basel) 2021; 13:1794. [PMID: 34072334 PMCID: PMC8198921 DOI: 10.3390/polym13111794] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 12/28/2022] Open
Abstract
Polyhydroxybutyrate-co-hydroxyvalerate (PHBV) is considered a suitable polymer for drug delivery systems and bone tissue engineering due to its biocompatibility and biodegradability. However, the lack of bioactivity and antibacterial activity hinders its biomedical applications. In this study, mesoporous bioactive glass nanoparticles (MBGN) were incorporated into PHBV to enhance its bioactivity, while cinnamaldehyde (CIN) was loaded in MBGN to introduce antimicrobial activity. The blank (PHBV/MBGN) and the CIN-loaded microspheres (PHBV/MBGN/CIN5, PHBV/MBGN/CIN10, and PHBV/MBGN/CIN20) were fabricated by emulsion solvent extraction/evaporation method. The average particle size and zeta potential of all samples were investigated, as well as the morphology of all samples evaluated by scanning electron microscopy. PHBV/MBGN/CIN5, PHBV/MBGN/CIN10, and PHBV/MBGN/CIN20 significantly exhibited antibacterial activity against Staphylococcus aureus and Escherichia coli in the first 3 h, while CIN releasing behavior was observed up to 7 d. Human osteosarcoma cell (MG-63) proliferation and attachment were noticed after 24 h cell culture, demonstrating no adverse effects due to the presence of microspheres. Additionally, the rapid formation of hydroxyapatite on the composite microspheres after immersion in simulated body fluid (SBF) during 7 d revealed the bioactivity of the composite microspheres. Our findings indicate that this system represents an alternative model for an antibacterial biomaterial for potential applications in bone tissue engineering.
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Affiliation(s)
- Kittipat Chotchindakun
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Jeeraporn Pekkoh
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jetsada Ruangsuriya
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
- Functional Food Research Unit, Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kai Zheng
- Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (K.Z.); (I.U.)
| | - Irem Unalan
- Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (K.Z.); (I.U.)
| | - Aldo R. Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (K.Z.); (I.U.)
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19
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Patel R, Monticone D, Lu M, Grøndahl L, Huang H. Hydrolytic degradation of porous poly(hydroxybutyrate-co-hydroxyvalerate) scaffolds manufactured using selective laser sintering. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2021.109545] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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20
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Paper 2. Epigallocatechin Gallate and Tannic Acid Based Formulations of Finasteride for Dermal Administration and Chemoembolization. J Pharm Sci 2020; 110:807-814. [PMID: 33035538 DOI: 10.1016/j.xphs.2020.09.041] [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: 08/15/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 11/20/2022]
Abstract
Finasteride is used to treat benign prostatic hyperplasia (BPH) and pattern hair loss (androgenetic alopecia or APA). The local administration of formulations with increased solubility and controlled release of finasteride are proposed using gallate-containing compositions within embolic microparticles or paste. Finasteride solubility in either epigallocatechin gallate (EGCG) or tannic acid (TA) solutions was assessed using HPLC. Poly(dl-lactide-co-glycolide) (PLGA) or poly(methylmethacrylate) (PMMA) microspheres (100-400 μm) containing finasteride and EGCG or TA were effectively manufactured. Embolic particles were loaded with finasteride/EGCG/TA. Dermal uptake of TA/EGCG/finasteride topical compositions was measured in pig skin. The solubility of finasteride was dramatically increased using EGCG- or TA-based compositions. Finasteride loaded microspheres released over two months which was increased by EGCG or TA inclusion. Embolic particles soaked up finasteride and EGCG or TA and released the encapsulated drug over two weeks. Dermal uptake of finasteride from EGCG- or TA-based formulations was enhanced between 10 and 50 fold in layers as deep as 500 μm when compared to a generic control formulation. Gallate-based formulations of finasteride increase drug solubility and allow for effective release of the drug from embolic formulations. Paste or powder EGCG- or TA-based formulations of finasteride greatly increase dermal penetration of the drug.
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