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Son G, Seon GM, Choi SH, Yang HC. Effects of vehicles on the physical properties and biocompatibility of premixed calcium silicate cements. Dent Mater J 2024; 43:276-285. [PMID: 38447980 DOI: 10.4012/dmj.2023-147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Premixed calcium silicate cements (pCSCs) contain vehicles which endow fluidity and viscosity to CSCs. This study aimed to investigate the effects of three vehicles, namely, polyethylene glycol (PEG), propylene glycol (PG), and dimethyl sulfoxide (DMSO), on the physicochemical properties and biocompatibility of pCSCs. The setting time, solubility, expansion rate, and mechanical strength of the pCSCs were evaluated, and the formation of calcium phosphate precipitates was assessed in phosphate-buffered saline (PBS). The effects of pCSC extracts on the osteogenic differentiation of mesenchymal stem cells (MSCs) were investigated. Finally, the tissue compatibility of pCSCs in rat femurs was observed. CSC containing PEG (CSC-PEG) exhibited higher solubility and setting time, and CSC-DMSO showed the highest expansion rate and mechanical strength. All pCSCs generated calcium phosphate precipitates. The extract of CSC-PG induced the highest expressions of osteogenic markers along with the greatest calcium deposites. When implanted in rat femurs, CSC-PEG was absorbed considerably, whereas CSC-PG remained relatively unaltered inside the femur.
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Affiliation(s)
- Gitae Son
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University
| | - Gyeung Mi Seon
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University
| | - Sang Hoon Choi
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University
| | - Hyeong-Cheol Yang
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University
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2
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Wu L, Seon GM, Ju S, Choi SH, Jiang ES, Kim Y, Chung SH, Ahn JS, Yang HC. Synergistic effects of arginine-glycine-aspartic acid and phosphatidylserine on the surface immunomodulation and osseointegration of titanium implants. Biomater Sci 2023; 11:1358-1372. [PMID: 36594560 DOI: 10.1039/d2bm01589g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The control of macrophage polarization is important in bone tissue regeneration such as osseointegration. In this study, a coating method was developed to improve the osseointegration of titanium (Ti) implants by generating an immunomodulatory effect. The surface of the Ti discs was coated with a poly(lactide-co-glycolide)(PLGA) polymer, phosphatidylserine (PS), and arginine-glycine-aspartic acid (RGD) peptide conjugated phospholipid. In in vitro assay using mouse bone marrow-derived macrophages (BMDMs), the most significant expression of the M2 marker genes (Arg-1, YM-1, FIZZ1) and CD206, an M2 surface marker, was obtained with coatings containing 6 mol% RGD conjugates and phospholipids consisting of 50 mol% PS. The M2-inducing effect of RGD and PS was also verified in rat femurs where coated Ti rods were implanted. The RGD and PS coating significantly enhanced the osseointegration of the Ti implants. Moreover, a biomechanical push-out test showed that the RGD and PS coating increased the interfacial binding force between the bone and implants. These results indicate that PS and RGD can be applied to the solid surface of implantable biomedical devices to improve immunomodulation and tissue regeneration.
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Affiliation(s)
- Lele Wu
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - Gyeung Mi Seon
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - Sungwon Ju
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - Sang Hoon Choi
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - En-Shi Jiang
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - Yongjoon Kim
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - Shin Hye Chung
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - Jin-Soo Ahn
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
| | - Hyeong-Cheol Yang
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul 03080, South Korea.
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3
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Wu L, Seon GM, Kim Y, Choi SH, Vo QC, Yang HC. Enhancing effect of sodium butyrate on phosphatidylserine–liposome-induced macrophage polarization. Inflamm Res 2022; 71:641-652. [DOI: 10.1007/s00011-022-01563-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/11/2022] [Indexed: 11/28/2022] Open
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Koo MA, Jeong H, Hong SH, Seon GM, Lee MH, Park JC. Preconditioning process for dermal tissue decellularization using electroporation with sonication. Regen Biomater 2021; 9:rbab071. [PMID: 35449827 PMCID: PMC9017362 DOI: 10.1093/rb/rbab071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/11/2021] [Accepted: 11/19/2021] [Indexed: 12/02/2022] Open
Abstract
Decellularization to produce bioscaffolds composed of the extracellular matrix (ECM) uses enzymatic, chemical and physical methods to remove antigens and cellular components from tissues. Effective decellularization methods depend on the characteristics of tissues, and in particular, tissues with dense, complex structure and abundant lipid content are difficult to completely decellularize. Our study enables future research on the development of methods and treatments for fabricating bioscaffolds via decellularization of complex and rigid skin tissues, which are not commonly considered for decellularization to date as their structural and functional characteristics could not be preserved after severe decellularization. In this study, decellularization of human dermal tissue was done by a combination of both chemical (0.05% trypsin-EDTA, 2% SDS and 1% Triton X-100) and physical methods (electroporation and sonication). After decellularization, the content of DNA remaining in the tissue was quantitatively confirmed, and the structural change of the tissue and the retention and distribution of ECM components were evaluated through histological and histochemical analysis, respectively. Conditions of the chemical pretreatment that increase the efficiency of physical stimulation as well as decellularization, and conditions for electroporation and sonication without the use of detergents, unlike the methods performed in previous studies, were established to enable the complete decellularization of the skin tissue. The combinatorial decellularization treatment formed micropores in the lipid bilayers of the skin tissues while removing all cell and cellular residues without affecting the ECM properties. Therefore, this procedure can be widely used to fabricate bioscaffolds by decellularizing biological tissues with dense and complex structures.
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Affiliation(s)
- Min-Ah Koo
- Cellbiocontrol Laboratory
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | | | - Seung Hee Hong
- Cellbiocontrol Laboratory
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | | | | | - Jong-Chul Park
- Cellbiocontrol Laboratory
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
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Wu L, Kim Y, Seon GM, Choi SH, Park HC, Son G, Kim SM, Lim BS, Yang HC. Effects of RGD-grafted phosphatidylserine-containing liposomes on the polarization of macrophages and bone tissue regeneration. Biomaterials 2021; 279:121239. [PMID: 34753037 DOI: 10.1016/j.biomaterials.2021.121239] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/27/2021] [Accepted: 11/01/2021] [Indexed: 12/24/2022]
Abstract
Phosphatidylserine-containing liposomes (PSLs) can mimic the anti-inflammatory effects of apoptotic cells by binding to the phosphatidylserine receptors of macrophages. MGF-E8, a bridge molecule between phosphatidylserine and macrophages, can promote M2 polarization by activating macrophage integrin with its arginine-glycine-aspartic acid (RGD) motif. In this study, to mimic MGF-E8, PSLs presenting RGD peptide (RGD-PSLs) were prepared, and their immunomodulatory effects on macrophages and the bone tissue regeneration of rat calvarial defects were investigated. RGD peptides enhanced the phagocytosis of PSLs by macrophages, especially when the PSLs contained 3% RGD. RGD-PSLs were also more effective than PSLs for the suppression of lipopolysaccharide-induced gene expression of proinflammatory cytokines (i.e., IL-1β, IL-6, and TNF-α) as well as CD86 (M1 marker) expression. Furthermore, RGD promoted PSL-induced M2 polarization: 3%-RGD-PSLs significantly enhanced the mRNA expression of Arg-1, FIZZ1, and YM-1, as well as CD206 (M2 marker) expression. In a calvarial defect model, a significant increase in M2 with a decrease in M1 macrophages was observed with 3%-RGD-PSL treatment compared with the effects of PSLs alone. Finally, new bone formation was also accelerated by 3%-RGD-PSLs. Thus, these results suggest that the intensive immunomodulatory effect of RGD-PSLs led to the enhancement of bone tissue regeneration.
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Affiliation(s)
- Lele Wu
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Yongjoon Kim
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Gyeung Mi Seon
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Sang Hoon Choi
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Hee Chul Park
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Gitae Son
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Soung Min Kim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Bum-Soon Lim
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Hyeong-Cheol Yang
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101, Deahak-ro, Jongno-gu, Seoul, 03080, South Korea.
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Seon GM, Lee MH, Koo MA, Hong SH, Park YJ, Jeong HK, Park JC. A collagen-AS/εPLL bilayered artificial substitute regulates anti-inflammation and infection for initial inflamed wound healing. Biomater Sci 2021; 9:6865-6878. [PMID: 34494620 DOI: 10.1039/d1bm01071a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Despite the development of advanced tissue engineering substitutes, inflammation is still a significant problem that can arise from inflamed burn injuries, chronic wounds, or microbial diseases. Although topical wound dressing accelerates healing by minimizing or preventing the consequences of skin inflammation, there remains a need for the development of a novel substitute scaffold that can effectively eliminate immoderate inflammation and infection in the initial phase of the healing meachanism. In this study, an artificial skin substitute scaffold fabricated with asiaticoside (AS) and epsilon-poly-L-lysine (εPLL) was prepared. Upon the release of these bioactive compounds, they accelerate wound healing and inhibit any bacterial infection at the wound site. We determined whether AS and εPLL exhibit anti-inflammatory and bactericidal effects through different mechanisms. Collectively, the collagen-AS/εPLL artificial skin substitute could be a significant therapeutic agent for scar-less rapid wound healing (without infection and inflammation) of initially-inflamed full-thickness wounds.
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Affiliation(s)
- Gyeung Mi Seon
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Min-Ah Koo
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea. .,Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seung Hee Hong
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea. .,Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Ye Jin Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Ha Kyeong Jeong
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea. .,Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
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Lee MH, Jeong H, Koo MA, Seon GM, Hong SH, Park YJ, Park JC. Sterilization of sealed PVDF pouches containing decellularized scaffold by electrical stimulation. Biotechnol J 2021; 16:e2100156. [PMID: 34374222 DOI: 10.1002/biot.202100156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 07/26/2021] [Accepted: 08/04/2021] [Indexed: 11/11/2022]
Abstract
A terminal sterilization process for tissue engineering products, such as allografts and biomaterials is necessary to ensure complete removal of pathogenic microorganisms such as the bacteria, fungi and viruses. However, it can be difficult to sterilize allografts and artificial tissue models packaged in wet conditions without deformation. In this study, we investigated the sterilization effects of electrical stimulation (ES) and assessed its suitability by evaluating sterility assurance levels in pouches at a constant current. Stability of polyvinylidene fluoride pouches was determined by a sterility test performed after exposure to five microorganisms (Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans) for 5 days; the sterility test was also performed with decellularized human dermal tissues inoculated with the five microorganisms. Sterilization using ES inactivated microorganisms both inside and outside of sealed pouches and caused no damage to the packaged tissue. Our results support the development of a novel system that involves ES sterilization for packaging of implantable biomaterials and human derived materials. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering, Seoul, Republic of Korea
| | - HaKyeong Jeong
- Cellbiocontrol Laboratory, Department of Medical Engineering, Seoul, Republic of Korea.,Department of Medical Device Engineering and Management, Seoul, Republic of Korea
| | - Min-Ah Koo
- Cellbiocontrol Laboratory, Department of Medical Engineering, Seoul, Republic of Korea.,Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Gyeung Mi Seon
- Cellbiocontrol Laboratory, Department of Medical Engineering, Seoul, Republic of Korea.,Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Seung Hee Hong
- Cellbiocontrol Laboratory, Department of Medical Engineering, Seoul, Republic of Korea.,Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Ye Jin Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Seoul, Republic of Korea.,Department of Medical Device Engineering and Management, Seoul, Republic of Korea
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Seoul, Republic of Korea.,Department of Medical Device Engineering and Management, Seoul, Republic of Korea.,Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
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8
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Hong SH, Koo MA, Lee MH, Seon GM, Park YJ, Jeong H, Kim D, Park JC. An effective method to generate controllable levels of ROS for the enhancement of HUVEC proliferation using a chlorin e6-immobilized PET film as a photo-functional biomaterial. Regen Biomater 2021; 8:rbab005. [PMID: 33738119 PMCID: PMC7955709 DOI: 10.1093/rb/rbab005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/29/2020] [Accepted: 01/14/2021] [Indexed: 12/20/2022] Open
Abstract
Reactive oxygen species (ROS) are byproducts of cellular metabolism; they play a significant role as secondary messengers in cell signaling. In cells, high concentrations of ROS induce apoptosis, senescence, and contact inhibition, while low concentrations of ROS result in angiogenesis, proliferation, and cytoskeleton remodeling. Thus, controlling ROS generation is an important factor in cell biology. We designed a chlorin e6 (Ce6)-immobilized polyethylene terephthalate (PET) film (Ce6-PET) to produce extracellular ROS under red-light irradiation. The application of Ce6-PET films can regulate the generation of ROS by altering the intensity of light-emitting diode sources. We confirmed that the Ce6-PET film could effectively promote cell growth under irradiation at 500 μW/cm2 for 30 min in human umbilical vein endothelial cells. We also found that the Ce6-PET film is more efficient in generating ROS than a Ce6-incorporated polyurethane film under the same conditions. Ce6-PET fabrication shows promise for improving the localized delivery of extracellular ROS and regulating ROS formation through the optimization of irradiation intensity.
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Affiliation(s)
- Seung Hee Hong
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
| | - Min-Ah Koo
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
| | - Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering
| | - Gyeung Mi Seon
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
| | - Ye Jin Park
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Device Engineering and Management, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
| | - HaKyeong Jeong
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Device Engineering and Management, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
| | - Dohyun Kim
- Cellbiocontrol Laboratory, Department of Medical Engineering
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
- Department of Medical Device Engineering and Management, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
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9
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Seon GM, Lee MH, Koo MA, Hong SH, Park YJ, Jeong HK, Kwon BJ, Kim D, Park JC. Asiaticoside and polylysine-releasing collagen complex for effectively reducing initial inflammatory response using inflamed induced in vitro model. Mater Sci Eng C Mater Biol Appl 2021; 121:111837. [PMID: 33579475 DOI: 10.1016/j.msec.2020.111837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 12/17/2020] [Accepted: 12/20/2020] [Indexed: 12/31/2022]
Abstract
Inflammation is a significant clinical problem that can arise from full-thickness wounds or burn injuries or microbial disease. Although topical wound healing substances could promote rapid wound healing by preventing or reducing the consequences of inflammation, there still remains a need for the development of novel substances that can effectively reduce infection and inflammation in initial wound healing phase. In this study, collagen was combined with asiaticoside (AS) and ε-poly-l-lysine (εPLL). This complex was then applied to in vitro models of infection and inflammation. Collagen-AS coatings inhibited the initial inflammatory response to LPS through a sustained release of AS, and a bilayer coating-εPLL showed a notable antimicrobial effect using microbial infection test. In this study, we determined whether asiaticoside and εPLL have anti-inflammatory and antibacterial effects through different mechanisms. Collectively, the collagen-AS/εPLL complex indicated great therapeutic potentials for accelerate wound healing and the complex may be considered as a artificial scaffold substitute product to full-thickness wound healing.
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Affiliation(s)
- Gyeung Mi Seon
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea; Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Republic of Korea
| | - Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea
| | - Min-Ah Koo
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea; Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Republic of Korea
| | - Seung Hee Hong
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea; Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Republic of Korea
| | - Ye Jin Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea; Department of Medical Device Industry, Yonsei University College of Medicine, Republic of Korea
| | - Ha Kyeong Jeong
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea; Department of Medical Device Industry, Yonsei University College of Medicine, Republic of Korea
| | - Byeong-Ju Kwon
- Department of Medical Device Industry, Yonsei University College of Medicine, Republic of Korea
| | - Dohyun Kim
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Republic of Korea; Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Republic of Korea.
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Shin YC, Lee JB, Kim DH, Kim T, Alexander G, Shin YM, Park JY, Baek S, Yoon JK, Lee YJ, Seon GM, Lee MH, Kang ML, Jang WS, Park JC, Jun HW, Kim Y, Sung HJ. Development of a Shape-Memory Tube to Prevent Vascular Stenosis. Adv Mater 2019; 31:e1904476. [PMID: 31454108 DOI: 10.1002/adma.201904476] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Inserting a graft into vessels with different diameters frequently causes severe damage to the host vessels. Poor flow patency is an unresolved issue in grafts, particularly those with diameters less than 6 mm, because of vessel occlusion caused by disturbed blood flow following fast clotting. Herein, successful patency in the deployment of an ≈2 mm diameter graft into a porcine vessel is reported. A new library of property-tunable shape-memory polymers that prevent vessel damage by expanding the graft diameter circumferentially upon implantation is presented. The polymers undergo seven consecutive cycles of strain energy-preserved shape programming. Moreover, the new graft tube, which features a diffuser shape, minimizes disturbed flow formation and prevents thrombosis because its surface is coated with nitric-oxide-releasing peptides. Improved patency in a porcine vessel for 18 d is demonstrated while occlusive vascular remodeling occurs. These insights will help advance vascular graft design.
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Affiliation(s)
- Yong Cheol Shin
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jung Bok Lee
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Dae-Hyun Kim
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Taeyoung Kim
- George W. Woodruff School of Mechanical Engineering, Wallace H. Coulter Department of Biomedical Engineering, Institute for Electronics and Nanotechnology, Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | | | - Young Min Shin
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | | | - Sewoom Baek
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jeong-Kee Yoon
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Yong Jae Lee
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Gyeung Mi Seon
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Mi Hee Lee
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Mi-Lan Kang
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- TMD Lab., Seoul, 03722, Republic of Korea
| | | | - Jong-Chul Park
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Ho-Wook Jun
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - YongTae Kim
- George W. Woodruff School of Mechanical Engineering, Wallace H. Coulter Department of Biomedical Engineering, Institute for Electronics and Nanotechnology, Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Hak-Joon Sung
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
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Koo MA, Hee Hong S, Hee Lee M, Kwon BJ, Mi Seon G, Sung Kim M, Kim D, Chang Nam K, Park JC. Effective stacking and transplantation of stem cell sheets using exogenous ROS-producing film for accelerated wound healing. Acta Biomater 2019; 95:418-426. [PMID: 30660002 DOI: 10.1016/j.actbio.2019.01.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 12/26/2022]
Abstract
Extensive skin loss caused by burns or diabetic ulcers may lead to major disability or even death. Therefore, cell-based therapies that enhance skin regeneration are clinically needed. Previous approaches have been applied the injections of cell suspensions and the implantation of biodegradable three-dimensional scaffolds seeded cells. However, these treatments have limits due to poor localization of the injected cells and insufficient delivery of oxygen and nutrients to cells. Recently, cell sheet-based tissue engineering has been developed to transplant cell sheets, which are cell-dense tissues without scaffolds. Because cell density is one of the important factors for improving the therapeutic effect of cell transplantation, transplanting layered cell sheet constructs can promote the recovery of tissue function and tissue regeneration compared with a single cell sheet. Thus, this study designed ROS-induced cell sheet stacking method with newly fabricated hematoporphyrin-incorporated polyketone film (Hp-PK film) to enhance cell sheet delivery efficiency and application in wound healing. We have demonstrated the therapeutic effect of a multi-layered mesenchymal stem cell sheets onto a full-thickness wound defect in nude mice. Consequentially, three-layered cell sheets transplanted and stacked by ROS-induced method promoted angiogenesis and skin regeneration at the wound site. Thus, our strategy based on Hp-PK film, which allows for easy stacking and transplantation of cell sheets, could be applied to enhance tissue regeneration. STATEMENT OF SIGNIFICANCE: We herein report exogenous ROS-induced cell sheet stacking method with newly fabricated hematoporphyrin-incorporated polyketone film (Hp-PK film) to enhance cell sheet transplantation efficiency and application in wound healing. Although there are several ways to stack-up cell sheets, all of these methods have limitations in transplanting the cell sheet directly to the target site. The method is simple and takes a relatively short time compared to previously reported methods for stacking and transplanting cell sheets. Thus, our study will provide a scientific impact because the method of applying exogenous ROS generated from Hp-PK film on cell detachment can transplant the cell sheet through a process of putting a cell sheet-cultured film on the lesion, irradiating with light, and then removing only the film.
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Affiliation(s)
- Min-Ah Koo
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seung Hee Hong
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Mi Hee Lee
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Byeong-Ju Kwon
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Gyeung Mi Seon
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Min Sung Kim
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Dohyun Kim
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Ki Chang Nam
- Department of Medical Engineering, Dongguk University College of Medicine, Gyeonggi-do 10326, Republic of Korea
| | - Jong-Chul Park
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
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Hong SH, Lee MH, Koo MA, Seon GM, Park YJ, Kim D, Park JC. Stem cell passage affects directional migration of stem cells in electrotaxis. Stem Cell Res 2019; 38:101475. [PMID: 31176110 DOI: 10.1016/j.scr.2019.101475] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/20/2019] [Accepted: 05/28/2019] [Indexed: 02/06/2023] Open
Abstract
Stem cells can differentiate into various body tissues and organs and thus are considered as promising tools for cell therapy and tissue engineering. Early passage stem cells have high differentiation ability compared to late passage stem cells. Thus, it is important to use early passage stem cells in cell therapy. Here, we investigated whether cell migration could be used to compare young and senescent cells. We used 'electrotaxis' where cells under electric treatment move towards the anode or cathode. Without an electric stimulus, stem cells moved randomly. However, under a direct electric current, the cells moved with directionality. Under stimulation with a direct electric current, early passage stem cells moved towards the anode; when the cells became senescent with increasing passages, the percentage of cells migrating to the anode decreased. These results suggest that the behavior of stem cells under the influence of a direct electric current is also related to their passage number. Therefore, electrotaxis migration analysis can be used to distinguish between young cell and senescent cells.
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Affiliation(s)
- Seung Hee Hong
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Min-Ah Koo
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Gyeung Mi Seon
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Ye Jin Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Medical Device Industry, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Dohyun Kim
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Medical Device Industry, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
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Kim DH, Lee JB, Kang ML, Park JH, You J, Yu S, Park JY, Ryu SB, Seon GM, Yoon JK, Lee MH, Shin YM, Park KD, Park JC, Jang WS, Kim WS, Sung HJ. Microneedle Vascular Couplers with Heparin-Immobilized Surface Improve Suture-Free Anastomosis Performance. ACS Biomater Sci Eng 2018; 4:3848-3853. [DOI: 10.1021/acsbiomaterials.8b01097] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Dae-Hyun Kim
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jung Bok Lee
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Mi-Lan Kang
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | | | - Jin You
- FutureBioWorks, Seoul 08504, Republic of Korea
| | - SeongMi Yu
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ju Young Park
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
- FutureBioWorks, Seoul 08504, Republic of Korea
| | - Seung Bae Ryu
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Gyeung Mi Seon
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jeong-Kee Yoon
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Mi Hee Lee
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Young Min Shin
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Jong-Chul Park
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | | | - Won Shik Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Hak-Joon Sung
- Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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Kim D, Lee MH, Koo MA, Kwon BJ, Kim MS, Seon GM, Hong SH, Park JC. Suppression of T24 human bladder cancer cells by ROS from locally delivered hematoporphyrin-containing polyurethane films. Photochem Photobiol Sci 2018; 17:763-772. [PMID: 29717739 DOI: 10.1039/c7pp00424a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Systemic injection of a photosensitizer is a general method in photodynamic therapy, but it has complications due to the unintended systemic distribution and remnants of photosensitizers. This study focused on the possibility of suppressing luminal proliferative cells by excessive reactive oxygen species from locally delivered photosensitizer with biocompatible polyurethane, instead of the systemic injection method. We used human bladder cancer cells, hematoporphyrin as the photosensitizer, and polyurethane film as the photosensitizer-delivering container. The light source was a self-made LED (510 nm, 5 mW cm-2) system. The cancer cells were cultured on different doses of hematoporphyrin-containing polyurethane film and irradiated with LED for 15 minutes and 30 minutes each. After irradiating with LED and incubating for 24 hours, cell viability analysis, cell cycle analysis, apoptosis assay, intracellular and extracellular ROS generation study and western blot were performed. The cancer cell suppression effects of different concentrations of the locally delivered hematoporphyrin with PDT were compared. Apoptosis dominant cancer cell suppressions were shown to be hematoporphyrin dose-dependent. However, after irradiation, intracellular ROS amounts were similar in all the groups having different doses of hematoporphyrin, but these values were definitely higher than those in the control group. Excessive extracellular ROS from the intended, locally delivered photosensitizer for photodynamic treatment application had an inhibitory effect on luminal proliferative cancer cells. This method can be another possibility for PDT application on contactable or attachable lesions.
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Affiliation(s)
- Dohyun Kim
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.
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Koo MA, Lee MH, Kwon BJ, Seon GM, Kim MS, Kim D, Nam KC, Park JC. Exogenous ROS-induced cell sheet transfer based on hematoporphyrin-polyketone film via a one-step process. Biomaterials 2018; 161:47-56. [DOI: 10.1016/j.biomaterials.2018.01.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/15/2018] [Accepted: 01/19/2018] [Indexed: 12/14/2022]
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Kwon BJ, Seon GM, Lee MH, Koo MA, Kim MS, Kim D, Han JJ, Kim D, Kim J, Park JC. Locally delivered ethyl-2,5-dihydroxybenzoate using 3D printed bone implant for promotion of bone regeneration in a osteoporotic animal model. Eur Cell Mater 2018; 35:1-12. [PMID: 29327779 DOI: 10.22203/ecm.v035a01] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Osteoporosis is a disease characterized by low bone mass, most commonly caused by an increase in bone resorption that is not matched by sufficient bone formation. The most common complications of postmenopausal osteoporosis are bone-related defects and fractures. Fracture healing is a multifactorial bone regeneration process, influenced by both biological and mechanical factors related to age, osteoporosis and stability of the osteosynthesis. During the treatment of bone defects in osteoporotic conditions, imbalanced bone remodeling is the leading cause for implant failure. To overcome these problems, ethyl-2,5-dihydroxybenzoate (E-2,5-DHB), a drug that promotes bone formation and inhibits bone resorption, was used. E-2,5-DHB-incorporating titanium (Ti) implants using poly(lactic-co-glycolic acid) (PLGA) coating for local delivery of E-2,5-DHB were developed and the effects on bone healing of femoral defects were evaluated in an osteoporotic model. The release of E-2,5-DHB resulted in decreased bone resorption and increased bone formation around the implant. Thus, it was confirmed that, in the osteoporotic model, bone healing was increased and implant fixation was enhanced. These results suggested that E-2,5-DHB-coated Ti implants have great potential as an ultimate local drug delivery system for bone tissue scaffolds.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - J-C Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, Seoul, 03722, Republic of
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Kim MS, Lee MH, Kwon BJ, Koo MA, Seon GM, Kim D, Hong SH, Park JC. Influence of Biomimetic Materials on Cell Migration. Advances in Experimental Medicine and Biology 2018; 1064:93-107. [DOI: 10.1007/978-981-13-0445-3_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Lee Y, Le Thi P, Seon GM, Ryu SB, Brophy CM, Kim Y, Park JC, Park KD, Cheung-Flynn J, Sung HJ. Heparin-functionalized polymer graft surface eluting MK2 inhibitory peptide to improve hemocompatibility and anti-neointimal activity. J Control Release 2017; 266:321-330. [PMID: 28987880 PMCID: PMC5723561 DOI: 10.1016/j.jconrel.2017.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/30/2017] [Accepted: 10/03/2017] [Indexed: 12/21/2022]
Abstract
The leading cause of synthetic graft failure includes thrombotic occlusion and intimal hyperplasia at the site of vascular anastomosis. Herein, we report a co-immobilization strategy of heparin and potent anti-neointimal drug (Mitogen Activated Protein Kinase II inhibitory peptide; MK2i) by using a tyrosinase-catalyzed oxidative reaction for preventing thrombotic occlusion and neointimal formation of synthetic vascular grafts. The binding of heparin-tyramine polymer (HT) onto the polycarprolactone (PCL) surface enhanced blood compatibility with significantly reduced protein absorption (64.7% decrease) and platelet adhesion (85.6% decrease) compared to bare PCL surface. When loading MK2i, 1) the HT depot surface gained high MK2i-loading efficiency through charge-charge interaction, and 2) this depot platform enabled long-term, controlled release over 4weeks (92-272μg/mL of MK2i). The released MK2i showed significant inhibitory effects on VSMC migration through down-regulated phosphorylation of target proteins (HSP27 and CREB) associated with intimal hyperplasia. In addition, it was found that the released MK2i infiltrated into the tissue with a cumulative manner in ex vivo human saphenous vein (HSV) model. This present study demonstrates that enzymatically HT-coated surface modification is an effective strategy to induce long-term MK2i release as well as hemocompatibility, thereby improving anti-neointimal activity of synthetic vascular grafts.
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Affiliation(s)
- Yunki Lee
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Phuong Le Thi
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Gyeung Mi Seon
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, South Korea
| | - Seung Bae Ryu
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Colleen M Brophy
- Division of Vascular Surgery, Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - YongTae Kim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Jong-Chul Park
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, South Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Joyce Cheung-Flynn
- Division of Vascular Surgery, Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Hak-Joon Sung
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Severance Biomedical Science Institute, College of Medicine, Yonsei University, Seoul 03722, South Korea.
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Seon GM, Lee MH, Kwon BJ, Kim MS, Koo MA, Kim D, Seomun Y, Kim JT, Park JC. Functional improvement of hemostatic dressing by addition of recombinant batroxobin. Acta Biomater 2017; 48:175-185. [PMID: 27769944 DOI: 10.1016/j.actbio.2016.10.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 10/12/2016] [Accepted: 10/17/2016] [Indexed: 11/24/2022]
Abstract
Although a number of natural materials have been used as hemostatic agents, many substances do not act quickly enough. Here, we created a novel dressings using collagen and chitosan with recombinant batroxobin (r-Bat) to promote faster and more effective hemostasis. We hypothesized that r-Bat would promote synergetic blood coagulation because it contains a blood coagulation active site different than those of collagen and chitosan. Our results suggest that each substances can maintain hemostatic properties while in the mixed dressings and that our novel hemostatic dressings promotes potent control of bleeding, as demonstrated by a whole blood assay and rat hemorrhage model. In a rat femoral artery model, the scaffold with a high r-Bat concentration more rapidly controlled excessive bleeding. This novel dressings has enormous possible for rapidly controlling bleeding and it improves upon the effect of collagen and chitosan used alone. Our novel r-Bat dressings is a possible candidate for improving preoperative care and displays promising properties as an absorbable agent in hemostasis. STATEMENT OF SIGNIFICANCE Despite the excellent hemostatic properties of collagen and chitosan pads, they reported to brittle behavior and lack sufficient hemostatic effect within relevant time. Therefore, we created a novel pad using collagen and chitosan with recombinant batroxobin (r-Bat). r-Bat acts as a thrombin-like enzyme in the coagulation cascade. Specifically, r-Bat, in contrast to thrombin, only splits fibrinopeptide A off and does not influence other hemostatic factors or cells, which makes it clinically useful as a stable hemostatic agent. Also the materials in the pad have synergetic effect because they have different hemostatic mechanisms in the coagulation cascade. This report propose the novel hemostatic pad isreasonable that a great potential for excessive bleeding injury and improve effects of natural substance hemostatic pad.
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Koo MA, Kim BJ, Lee MH, Kwon BJ, Kim MS, Seon GM, Kim D, Nam KC, Wang KK, Kim YR, Park JC. Controlled Delivery of Extracellular ROS Based on Hematoporphyrin-Incorporated Polyurethane Film for Enhanced Proliferation of Endothelial Cells. ACS Appl Mater Interfaces 2016; 8:28448-28457. [PMID: 27696825 DOI: 10.1021/acsami.6b07628] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The principle of photodynamic treatment (PDT) involves the administration of photosensitizer (PS) at diseased tissues, followed by light irradiation to produce reactive oxygen species (ROS). In cells, a moderate increase in ROS plays an important role as signaling molecule to promote cell proliferation, whereas a severe increase of ROS causes cell damage. Previous studies have shown that low levels of ROS stimulate cell growth through PS drugs-treating PDT and nonthermal plasma treatment. However, these methods have side effects which are associated with low tissue selectivity and remaining of PS residues. To overcome such shortcomings, we designed hematoporphyrin-incorporated polyurethane (PU) film induced generation of extracellular ROS with singlet oxygen and free radicals. The film can easily control ROS production rate by regulating several parameters including light dose, PS dose. Also, its use facilitates targeted delivery of ROS to the specific lesion. Our study demonstrated that extracellular ROS could induce the formation of intracellular ROS. In vascular endothelial cells, a moderated increase in intracellular ROS also stimulated cell proliferation and cell cycle progression by accurate control of optimum levels of ROS with hematoporphyrin-incorporated polymer films. This modulation of cellular growth is expected to be an effective strategy for the design of next-generation PDT.
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Affiliation(s)
| | - Bong-Jin Kim
- Department of Chemistry, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | | | | | | | | | | | - Ki Chang Nam
- Department of Medical Engineering, Dongguk University College of Medicine , Gyeonggi-do 10326, Republic of Korea
| | - Kang-Kyun Wang
- Department of Chemistry, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Yong-Rok Kim
- Department of Chemistry, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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Lee MH, Lee DH, Baek HS, Kwon BJ, Koo MA, Kim MS, Seon GM, Park JC. Biological Safety Evaluation of Polyketones as Biomaterials. pk 2016. [DOI: 10.7317/pk.2016.40.2.225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kwon BJ, Lee MH, Koo MA, Kim MS, Seon GM, Han JJ, Park JC. Ethyl-2, 5-dihydroxybenzoate displays dual activity by promoting osteoblast differentiation and inhibiting osteoclast differentiation. Biochem Biophys Res Commun 2016; 471:335-41. [PMID: 26869515 DOI: 10.1016/j.bbrc.2016.02.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 02/05/2016] [Indexed: 11/26/2022]
Abstract
The interplay between bone-forming osteoblasts and bone-resorbing osteoclasts is essential for balanced bone remodeling. In this study, we evaluate the ability of ethyl-2, 5-dihyrdoxybenzoate (E-2, 5-DHB) to affect both osteoblast and osteoclast differentiation for bone regeneration. Osteogenic differentiation of human mesenchymal stem cells (hMSCs) was quantified by measuring alkaline phosphatase (ALP) activity and calcium deposition. To evaluate osteoclast differentiation, we investigated the effect of E-2, 5-DHB on RANKL-activated osteoclastogenesis in RAW 264.7 cells. E-2, 5-DHB enhanced ALP activity and inhibited RAW 264.7 cell osteoclastogenesis in vitro. To assess the in vivo activity of E-2, 5-DHB, hMSCs were delivered subcutaneosuly alone or in combination with E-2, 5-DHB in an alginate gel into the backs of nude-mice. Histological and immunohistochemical evaluation showed significantly higher calcium deposition in the E-2, 5-DHB group. Osteocalcin (OCN) was highly expressed in cells implanted in the gels containing E-2, 5-DHB. Our results suggest that E-2, 5-DHB can effectively enhance osteoblast differentiation and inhibit osteoclast differentiation both in vitro and in vivo. Understanding the dual function of E-2, 5-DHB on osteoblast and osteoclast differentiation will aid in future development of E-2, 5-DHB as a material for bone tissue engineering.
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Affiliation(s)
- Byeong-Ju Kwon
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Min-Ah Koo
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Min Sung Kim
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Gyeung Mi Seon
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Jae-Jin Han
- Cellsafe Ltd., 119 Ajou University Industry Cooperation Foundation, Suwon 442-749, Republic of Korea
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Republic of Korea.
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Lee MH, Kwon BJ, Koo MA, Jang EH, Seon GM, Park JC. Exovascular application of epigallocatechin-3-O-gallate-releasing electrospun poly(l-lactide glycolic acid) fiber sheets to reduce intimal hyperplasia in injured abdominal aorta. Biomed Mater 2015; 10:055010. [DOI: 10.1088/1748-6041/10/5/055010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kim MS, Lee MH, Kwon BJ, Koo MA, Seon GM, Park JC. Enhancement of human mesenchymal stem cell infiltration into the electrospun poly(lactic-co-glycolic acid) scaffold by fluid shear stress. Biochem Biophys Res Commun 2015; 463:137-42. [DOI: 10.1016/j.bbrc.2015.05.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 05/07/2015] [Indexed: 01/13/2023]
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