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Anti-Herpes Simplex Virus Efficacy of Silk Cocoon, Silkworm Pupa and Non-Sericin Extracts. Antibiotics (Basel) 2021; 10:antibiotics10121553. [PMID: 34943765 PMCID: PMC8698825 DOI: 10.3390/antibiotics10121553] [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: 11/07/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 11/25/2022] Open
Abstract
Herpes simplex virus (HSV) infections are prevalent worldwide and are the cause of life- threatening diseases. Standard treatment with antiviral drugs, such as acyclovir, could prevent serious complications; however, resistance has been reported specifically among immunocompromised patients. Therefore, the development of an alternative approach is needed. The silk cocoon derived from silkworm, Bombyx mori, has been recognized for its broad-spectrum biological activity, including antiviral activity; however, its effects against HSV infection are unknown. In this study, we investigated the inhibitory effects of silk extracts derived from the cocoon shell, silk cocoon, silkworm pupa and non-sericin extract, on blocking HSV-1 and HSV-2 binding to host cells, resulting in the inhibition of the virus infection in Vero cells. Non-sericin extract demonstrated the greatest effectiveness on inhibiting HSV-1 and HSV-2 binding activity. Moreover, the virucidal effect to inactivate HSV-1 and HSV-2 was determined and revealed that non-sericin extract also exerted the highest potential activity. Using the treatment of non-sericin extract in HSV-2-infected HeLa cells could significantly lower the HSV-induced cell death and prevent inflammation via lowering the inflammatory cytokine gene expression. The non-sericin extract was analyzed for its bioactive compounds in which gallic acid, flavonoid and xanthophyll were identified, and might have partially contributed to its antiviral activity. The finding in our study suggested the potential of silk extract as an alternative therapeutic treatment for HSV infection.
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Pudkon W, Laomeephol C, Damrongsakkul S, Kanokpanont S, Ratanavaraporn J. Comparative Study of Silk Fibroin-Based Hydrogels and Their Potential as Material for 3-Dimensional (3D) Printing. Molecules 2021; 26:molecules26133887. [PMID: 34202196 PMCID: PMC8271494 DOI: 10.3390/molecules26133887] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 11/16/2022] Open
Abstract
Three-dimensional (3D) printing is regarded as a critical technology in material engineering for biomedical applications. From a previous report, silk fibroin (SF) has been used as a biomaterial for tissue engineering due to its biocompatibility, biodegradability, non-toxicity and robust mechanical properties which provide a potential as material for 3D-printing. In this study, SF-based hydrogels with different formulations and SF concentrations (1-3%wt) were prepared by natural gelation (SF/self-gelled), sodium tetradecyl sulfate-induced (SF/STS) and dimyristoyl glycerophosphorylglycerol-induced (SF/DMPG). From the results, 2%wt SF-based (2SF) hydrogels showed suitable properties for extrusion, such as storage modulus, shear-thinning behavior and degree of structure recovery. The 4-layer box structure of all 2SF-based hydrogel formulations could be printed without structural collapse. In addition, the mechanical stability of printed structures after three-step post-treatment was investigated. The printed structure of 2SF/STS and 2SF/DMPG hydrogels exhibited high stability with high degree of structure recovery as 70.4% and 53.7%, respectively, compared to 2SF/self-gelled construct as 38.9%. The 2SF/STS and 2SF/DMPG hydrogels showed a great potential to use as material for 3D-printing due to its rheological properties, printability and structure stability.
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Affiliation(s)
- Watcharapong Pudkon
- Biomedical Engineering Program, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;
- Biomedical Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.D.); (S.K.)
| | - Chavee Laomeephol
- Biomedical Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.D.); (S.K.)
| | - Siriporn Damrongsakkul
- Biomedical Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.D.); (S.K.)
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sorada Kanokpanont
- Biomedical Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.D.); (S.K.)
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Juthamas Ratanavaraporn
- Biomedical Engineering Program, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;
- Biomedical Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; (C.L.); (S.D.); (S.K.)
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: ; Tel.: +662-218-6793 (ext. 15)
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Thitiset T, Damrongsakkul S, Yodmuang S, Leeanansaksiri W, Apinun J, Honsawek S. A novel gelatin/chitooligosaccharide/demineralized bone matrix composite scaffold and periosteum-derived mesenchymal stem cells for bone tissue engineering. Biomater Res 2021; 25:19. [PMID: 34134780 PMCID: PMC8207659 DOI: 10.1186/s40824-021-00220-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/30/2021] [Indexed: 01/05/2023] Open
Abstract
Background A novel biodegradable scaffold including gelatin (G), chitooligosaccharide (COS), and demineralized bone matrix (DBM) could play a significant part in bone tissue engineering. The present study aimed to investigate the biological characteristics of composite scaffolds in combination of G, COS, and DBM for in vitro cell culture and in vivo animal bioassays. Methods Three-dimensional scaffolds from the mixture of G, COS, and DBM were fabricated into 3 groups, namely, G, GC, and GCD using a lyophilization technique. The scaffolds were cultured with mesenchymal stem cells (MSCs) for 4 weeks to determine biological responses such as cell attachment and cell proliferation, alkaline phosphatase (ALP) activity, calcium deposition, cell morphology, and cell surface elemental composition. For the in vivo bioassay, G, GC, and GCD, acellular scaffolds were implanted subcutaneously in 8-week-old male Wistar rats for 4 weeks and 8 weeks. The explants were assessed for new bone formation using hematoxylin and eosin (H&E) staining and von Kossa staining. Results The MSCs could attach and proliferate on all three groups of scaffolds. Interestingly, the ALP activity of MSCs reached the greatest value on day 7 after cultured on the scaffolds, whereas the calcium assay displayed the highest level of calcium in MSCs on day 28. Furthermore, weight percentages of calcium and phosphorus on the surface of MSCs after cultivation on the GCD scaffolds increased when compared to those on other scaffolds. The scanning electron microscopy images showed that MSCs attached and proliferated on the scaffold surface thoroughly over the cultivation time. Mineral crystal aggregation was evident in GC and greatly in GCD scaffolds. H&E staining illustrated that G, GC, and GCD scaffolds displayed osteoid after 4 weeks of implantation and von Kossa staining confirmed the mineralization at 8 weeks in G, GC, and GCD scaffolds. Conclusion The MSCs cultured in GCD scaffolds revealed greater osteogenic differentiation than those cultured in G and GC scaffolds. Additionally, the G, GC, and GCD scaffolds could promote in vivo ectopic bone formation in rat model. The GCD scaffolds exhibited maximum osteoinductive capability compared with others and may be potentially used for bone regeneration.
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Affiliation(s)
- Thakoon Thitiset
- Biomedical Engineering Program, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siriporn Damrongsakkul
- Department of Chemical Engineering, Biomaterial Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Supansa Yodmuang
- Research Affairs, Faculty of Medicine, Chulalongkorn University, Excellence Center for Advanced Therapy Medicinal Products, King Chulalongkorn Memorial Hospital, Bangkok, 10330, Thailand
| | - Wilairat Leeanansaksiri
- School of Preclinic, Institute of Science, Suranaree University of Technology, 111 University Avenue, Muang, Nakhon Ratchasima, 30000, Thailand
| | - Jirun Apinun
- Department of Orthopaedics, Vinai Parkpian Orthopaedic Research Center, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sittisak Honsawek
- Department of Biochemistry, Osteoarthritis and Musculoskeleton Research Unit, Faculty of Medicine, Chulalongkorn University, Rama IV road, Pathumwan, Bangkok, 10330, Thailand.
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Zou W, Sun Z, Su Z, Bai Y. Application of Gelatin Decorated with Allura Red as Resonance Rayleigh Scattering Sensor to Detect Chito-Oligosaccharides. Mar Drugs 2020; 18:E146. [PMID: 32121316 PMCID: PMC7143526 DOI: 10.3390/md18030146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 11/17/2022] Open
Abstract
A convenient and sensitive triple-wavelength overlapping resonance Rayleigh scattering (TWO-RRS) method for the detection of chito-oligosaccharides (COS) was proposed based on enhancing the rigid surface of porous reticular spatial structure of gelatin and COS by introducing allura red AC (AR). The interaction and resultant porous reticular spatial structure were characterized with transmission electron microscopy (TEM), RRS, and UV-Vis spectroscopy. The results indicated that gelatin and COS formed porous reticular spatial structure with an average diameter of 1.5-2.0 μm, and the RRS value of COS-AR-gelatin ternary system with gelatin participation was significantly higher than that of COS-AR binary system. Under the optimal conditions, the enhanced TWO-RRS intensity of the system was linearly proportional to COS concentration in the range of 0.30-2.50 μg/mL, and the regression equation was ΔI = 4933.2c-446.21 with R2 = 0.9980. The limit of detection was 0.0478 μg/mL. So, a new method for the detection of COS was established and verified in the health products with satisfactory results.
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Affiliation(s)
- Weiling Zou
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China; (W.Z.); (Z.S.)
| | - Zijun Sun
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China; (W.Z.); (Z.S.)
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yan Bai
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China; (W.Z.); (Z.S.)
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Chantong N, Damrongsakkul S, Ratanavaraporn J. Gelation Process and Physicochemical Properties of Thai Silk Fibroin Hydrogels Induced by Various Anionic Surfactants for Controlled Release of Curcumin. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12298] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Nattakan Chantong
- Biomedical Engineering Program, Faculty of EngineeringChulalongkorn University Phaya Thai Road, Bangkok 10330 Thailand
| | - Siriporn Damrongsakkul
- Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Phaya Thai Road, Bangkok 10330 Thailand
| | - Juthamas Ratanavaraporn
- Biomedical Engineering Program, Faculty of EngineeringChulalongkorn University Phaya Thai Road, Bangkok 10330 Thailand
- Skeletal Disorders Research Unit, Faculty of DentistryChulalongkorn University Phaya Thai Road, Bangkok 10330 Thailand
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Importance of crosslinking strategies in designing smart biomaterials for bone tissue engineering: A systematic review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:941-954. [PMID: 30606606 DOI: 10.1016/j.msec.2018.11.081] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 10/29/2018] [Accepted: 11/29/2018] [Indexed: 12/14/2022]
Abstract
Biomaterials are of significant importance in biomedical applications as these biological macromolecules have moderately replaced classical tissue grafting techniques owing to its beneficial properties. Despite of its favourable advantages, poor mechanical and degradative properties of biomaterials are of great concern. To this regard, crosslinkers have emerged as a smart and promising tool to augment the biological functionality of biopolymers. Different crosslinkers have been extensively used in past decades to develop bone substitutes, but the implications of toxic response and adverse reactions are truly precarious after implantation. Traditional crosslinker like glutaraldehyde has been widely used in numerous bio-implants but the potential toxicity is largely being debated with many disproving views. As alternative, green chemicals, enzymatic and non-enzymatic chemicals, bi-functional epoxies, zero-length crosslinkers and physical crosslinkers have been introduced to achieve the desired properties of a bone substitute. In this review, systematic literature search was performed on PubMed database to identify the most commonly used crosslinkers for developing promising bone like materials. The relevant articles were identified, analysed and reviewed in this paper giving due importance to different crosslinking methodologies and comparing their effectiveness and efficacy in regard to material composition, scaffold production, crosslinker dosage, toxicity and immunogenicity. This review summarizes the recent developments in crosslinking mechanism with an emphasis placed on their ability to link proteins through bonding reactions. Finally, this study also covers the convergent and divergent methodologies of crosslinking strategies also giving special importance in retrieving the current limitations and future opportunities of crosslinking modalities in bone tissue engineering.
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Thai silk fibroin gelation process enhancing by monohydric and polyhydric alcohols. Int J Biol Macromol 2018; 118:1726-1735. [PMID: 30017976 DOI: 10.1016/j.ijbiomac.2018.07.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 02/06/2023]
Abstract
Silk fibroin hydrogel is an interesting natural material in various biomedical applications. However, the self-assembled gelation takes a long time. In this work, different alcohol types are used as gelation enhancers for aqueous silk fibroin solution. Monohydric alcohols having carbon chain length from C1 to C4 and polyhydric alcohols with the number of mono- to tri- hydroxyl groups were used as the enhancers which are effective for rapid gelation. The addition of monohydric alcohol distinctively reduced the gelation time, comparing to the polyhydric alcohol. The gelation process is directly dependent on the polarity of alcohol and hydrophobicity. The alcohol mediated gelation imparts strong viscoelastic property and enhanced compressive modulus of resulting hydrogels. This is due to the effective formation of self-assembled beta sheet network of the silk fibroin chains facilitates the gelation process.
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Chitooligosaccharides and their biological activities: A comprehensive review. Carbohydr Polym 2018; 184:243-259. [DOI: 10.1016/j.carbpol.2017.12.067] [Citation(s) in RCA: 225] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 11/10/2017] [Accepted: 12/24/2017] [Indexed: 01/11/2023]
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Jo YY, Kim SG, Kwon KJ, Kweon H, Chae WS, Yang WG, Lee EY, Seok H. Silk Fibroin-Alginate-Hydroxyapatite Composite Particles in Bone Tissue Engineering Applications In Vivo. Int J Mol Sci 2017; 18:ijms18040858. [PMID: 28420224 PMCID: PMC5412440 DOI: 10.3390/ijms18040858] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/28/2017] [Accepted: 04/13/2017] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to evaluate the in vivo bone regeneration capability of alginate (AL), AL/hydroxyapatite (HA), and AL/HA/silk fibroin (SF) composites. Forty Sprague Dawley rats were used for the animal experiments. Central calvarial bone (diameter: 8.0 mm) defects were grafted with AL, AL/HA, or AL/HA/SF. New bone formation was evaluated by histomorphometric analysis. To demonstrate the immunocompatibility of each group, the level of tumor necrosis factor (TNF)-α expression was studied by immunohistochemistry (IHC) and quantitative reverse transcription polymerase chain reaction (qRT-PCR) at eight weeks post implantation. Additionally, osteogenic markers, such as fibroblast growth factor (FGF)-23, osteoprotegerin (OPG), and Runt-related transcription factor (Runx2) were evaluated by qPCR or IHC at eight weeks post implantation. The AL/HA/SF group showed significantly higher new bone formation than did the control group (p = 0.044) and the AL group (p = 0.035) at four weeks post implantation. Additionally, the AL/HA/SF group showed lower relative TNF-α mRNA levels and higher FGF-23 mRNA levels than the other groups did at eight weeks post implantation. IHC results demonstrated that the AL/HA/SF group had lower TNF-α expression and higher OPG and Runx2 expression at eight weeks post implantation. Additionally, no evidence of the inflammatory reaction or giant cell formation was observed around the residual graft material. We concluded that the AL/HA/SF composite could be effective as a scaffold for bone tissue engineering.
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Affiliation(s)
- You-Young Jo
- Sericultural & Apicultural Materials Division, National Institute of Agricultural Science, Wanju 55365, Korea.
| | - Seong-Gon Kim
- Department of Oral and Maxillofacial Surgery, Gangneung-Wonju National University, Gangneung 25457, Korea.
| | - Kwang-Jun Kwon
- Department of Oral and Maxillofacial Surgery, Gangneung-Wonju National University, Gangneung 25457, Korea.
| | - HaeYong Kweon
- Sericultural & Apicultural Materials Division, National Institute of Agricultural Science, Wanju 55365, Korea.
| | - Weon-Sik Chae
- Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu 41566, Korea.
| | - Won-Geun Yang
- Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu 41566, Korea.
| | - Eun-Young Lee
- Department of Oral and Maxillofacial Surgery, Chungbuk National University College of Medicine, Cheongju 28644, Korea.
- Department of Oral and Maxillofacial Surgery, Chungbuk National University Hospital, Cheongju 28644, Korea.
| | - Hyun Seok
- Department of Oral and Maxillofacial Surgery, Gangneung-Wonju National University, Gangneung 25457, Korea.
- Department of Oral and Maxillofacial Surgery, Chungbuk National University Hospital, Cheongju 28644, Korea.
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Lerdchai K, Kitsongsermthon J, Ratanavaraporn J, Kanokpanont S, Damrongsakkul S. Thai Silk Fibroin/Gelatin Sponges for the Dual Controlled Release of Curcumin and Docosahexaenoic Acid for Anticancer Treatment. J Pharm Sci 2016; 105:221-30. [PMID: 26579620 DOI: 10.1002/jps.24701] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/04/2015] [Accepted: 09/30/2015] [Indexed: 12/15/2022]
Abstract
In this study, curcumin and/or docosahexaenoic acid (DHA) were encapsulated in Thai silk fibroin/gelatin (SF/G) sponges, prepared at different blending ratios, aimed to be applied as a controlled release system for localized cancer therapy. The SF/G sponges were fabricated by freeze-drying and glutaraldehyde cross-linking techniques. Physicochemical properties of the SF/G sponges were characterized. Then, curcumin and/or DHA were loaded in the sponges by physical adsorption. The encapsulation efficiency and the in vitro release of curcumin and/or DHA from the sponges were evaluated. SF/G sponges could encapsulate curcumin and/or DHA at high encapsulation efficiency. The highly cross-linked and slowly degrading SF/G (50/50) sponge released curcumin and/or DHA at the slowest rate. The in vitro cytotoxicity of the sponges against noncancer cells (L929 mouse fibroblast) and anticancer of curcumin and/or DHA released from the sponges against cervical cancer cells (CaSki) were tested. All sponges were not toxic to L929 mouse fibroblast. The mixed curcumin–DHA at the ratio of 1:4 had the highest inhibiting effect on the growth of CaSki, comparing with the release of curcumin or DHA alone. SF/G sponges could be a potential carrier for dual release of curcumin and DHA for anticancer effect.
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Sinlapabodin S, Amornsudthiwat P, Damrongsakkul S, Kanokpanont S. An axial distribution of seeding, proliferation, and osteogenic differentiation of MC3T3-E1 cells and rat bone marrow-derived mesenchymal stem cells across a 3D Thai silk fibroin/gelatin/hydroxyapatite scaffold in a perfusion bioreactor. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:960-70. [DOI: 10.1016/j.msec.2015.09.034] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 08/28/2015] [Accepted: 09/07/2015] [Indexed: 01/18/2023]
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Comparison of silkworm-cocoon-derived silk membranes of two different thicknesses for guided bone regeneration. J Craniofac Surg 2015; 25:2066-9. [PMID: 25377968 DOI: 10.1097/scs.0000000000001151] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The objective of this study was to compare the effectiveness of silk membranes (SMs) of different thicknesses for guided bone regeneration. Two kinds of SMs were prepared (SM1: 0.01 mm thickness, SM2: 0.5 mm thickness). Before use in animal experiments, scanning electron microscope images were taken to examine the gross morphology of each membrane. Ten New Zealand white rabbits were used for this study. Bilateral round-shaped defects were created in the parietal bone (diameter: 8.0 mm) and each defect was covered with SM1 or SM2. Animals were killed at 4 weeks and 8 weeks. Bone regeneration was analyzed in each specimen by micro-computed tomography (μ-CT) and histological analysis. In the μ-CT analysis, the average amount of newly formed bone in the SM2 group was greater than that in the SM1 group. There was a significant difference at 4 weeks after surgery (P = 0.004). In the histological analysis, the amount of formed lamellar bone was much greater in the SM2 group than in the SM1 group at 8 weeks after surgery (P = 0.021). In conclusion, the thick SM was much more effective for bone regeneration of bone defects than the thin SM.
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Thitiwuthikiat P, Ii M, Saito T, Asahi M, Kanokpanont S, Tabata Y. A vascular patch prepared from Thai silk fibroin and gelatin hydrogel incorporating simvastatin-micelles to recruit endothelial progenitor cells. Tissue Eng Part A 2015; 21:1309-19. [PMID: 25517108 DOI: 10.1089/ten.tea.2014.0237] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Delayed re-endothelialization is one of the major disadvantages in synthetic vascular grafts, especially in small-diameter grafts (inner diameter <6 mm), leading to thrombosis and stenosis of the grafts. Simvastatin, a serum cholesterol-lowering drug, has promotional effects on endothelial progenitor cell (EPC) mobilization from bone marrow and recruitment to sites of vascular injury exhibiting acceleration of re-endothelialization. In this study, we prepared double-layer vascular patches from Thai silk fibroin/gelatin with gelatin hydrogel incorporating simvastatin-micelles (SM) for sustained release of simvastatin to recruit circulation EPCs. To enhance simvastatin solubility, simvastatin was entrapped in micelles of l-lactic acid oligomer-grafted gelatin. The drug loading efficiency was at 4.1 ± 0.5 μg/mg micelles. SM had a chemoattractive effect on EPCs comparable to nonmodified simvastatin. Gelatin hydrogel incorporating SM at 100 μM of simvastatin (GSM100) could enhance in vitro EPC activities of adhesion and proliferation. In vitro results showed the initial cell adhesion of 86%, specific growth rate of 15.33×10(-3) h(-1), and population doubling time of 46.21 h. In vivo implantation of the patches incorporating SM significantly increased the recruitment of circulating EPCs. From the results of immunofluorescence staining, they demonstrated the complete re-endothelialization on the implanted patches containing SM at 2 weeks after implantation in rat carotid arteries. The gelatin hydrogel incorporating SM could be an effective inner layer of multifunctional vascular grafts to accelerate re-endothelialization in vascular tissue engineering.
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Affiliation(s)
- Piyanuch Thitiwuthikiat
- 1 Biomedical Engineering Program, Faculty of Engineering, Chulalongkorn University , Bangkok, Thailand
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Panda N, Bissoyi A, Pramanik K, Biswas A. Development of novel electrospun nanofibrous scaffold from P. ricini and A. mylitta silk fibroin blend with improved surface and biological properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 48:521-32. [DOI: 10.1016/j.msec.2014.12.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 10/12/2014] [Accepted: 12/04/2014] [Indexed: 11/30/2022]
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Aramwit P, Bang N. The characteristics of bacterial nanocellulose gel releasing silk sericin for facial treatment. BMC Biotechnol 2014; 14:104. [PMID: 25487808 PMCID: PMC4265328 DOI: 10.1186/s12896-014-0104-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 11/27/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recently, naturally derived facial masks with beneficial biological properties have received increasing interest. In this study, silk sericin-releasing bacterial nanocellulose gel was developed to be applied as a bioactive mask for facial treatment. RESULTS The silk sericin-releasing bacterial nanocellulose gel produced at a pH of 4.5 had an ultrafine and extremely pure fiber network structure. The mechanical properties and moisture absorption ability of the gel were improved, compared to those of the commercially available paper mask. Silk sericin could be control-released from the gel. A peel test with porcine skin showed that the gel was less adhesive than the commercially available paper mask, which would be removed from the face more easily without pain. The in vitro cytotoxicity test showed that the gel was not toxic to L929 mouse fibroblast and HaCaT human keratinocyte cells. Furthermore, when implanted subcutaneously and evaluated according to ISO10993-6 standard, the gel was not irritant to tissue. CONCLUSION The silk sericin-releasing bacterial nanocellulose gel had appropriate physical and biological properties and safety for the facial treatment application.
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Affiliation(s)
- Pornanong Aramwit
- Bioactive Resources for Innovative Clinical Applications Research Unit and Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, PhayaThai Road, Phatumwan, Bangkok, 10330, Thailand.
| | - Nipaporn Bang
- Bioactive Resources for Innovative Clinical Applications Research Unit and Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, PhayaThai Road, Phatumwan, Bangkok, 10330, Thailand.
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Li J, Yang B, Qian Y, Wang Q, Han R, Hao T, Shu Y, Zhang Y, Yao F, Wang C. Iota-carrageenan/chitosan/gelatin scaffold for the osteogenic differentiation of adipose-derived MSCsin vitro. J Biomed Mater Res B Appl Biomater 2014; 103:1498-510. [DOI: 10.1002/jbm.b.33339] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/20/2014] [Accepted: 11/13/2014] [Indexed: 12/11/2022]
Affiliation(s)
- Junjie Li
- Department of Advanced Interdisciplinary Studies; Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences; No. 27, Taiping Road Beijing 100850 China
| | - Boguang Yang
- Department of Polymer Science and Key Laboratory of Systems Bioengineering of Ministry of Education; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Yufeng Qian
- Department of Chemistry and Biochemistry; University of Texas at Austin; 2500 Speedway Austin Texas 78712
| | - Qiyu Wang
- Department of Advanced Interdisciplinary Studies; Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences; No. 27, Taiping Road Beijing 100850 China
| | - Ruijin Han
- Department of Advanced Interdisciplinary Studies; Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences; No. 27, Taiping Road Beijing 100850 China
| | - Tong Hao
- Department of Advanced Interdisciplinary Studies; Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences; No. 27, Taiping Road Beijing 100850 China
| | - Yao Shu
- Department of Advanced Interdisciplinary Studies; Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences; No. 27, Taiping Road Beijing 100850 China
- Department of Stomatology; Affiliated Hospital of Academy of Military Medical Sciences; Beijing 100071 China
| | - Yabin Zhang
- Department of Polymer Science and Key Laboratory of Systems Bioengineering of Ministry of Education; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Fanglian Yao
- Department of Polymer Science and Key Laboratory of Systems Bioengineering of Ministry of Education; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Changyong Wang
- Department of Advanced Interdisciplinary Studies; Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences; No. 27, Taiping Road Beijing 100850 China
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17
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Panda NN, Biswas A, Pramanik K, Jonnalagadda S. Enhanced osteogenic potential of human mesenchymal stem cells on electrospun nanofibrous scaffolds prepared from eri-tasar silk fibroin. J Biomed Mater Res B Appl Biomater 2014; 103:971-82. [DOI: 10.1002/jbm.b.33272] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/09/2014] [Accepted: 08/06/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Niladri nath Panda
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela-769008 Odisha India
| | - Amit Biswas
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela-769008 Odisha India
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela-769008 Odisha India
| | - Sriramakamal Jonnalagadda
- Department of Pharmaceutical Sciences; Philadelphia College of Pharmacy; USciences Philadelphia Pennsylvania 19104
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18
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Kaewprasit K, Promboon A, Kanokpanont S, Damrongsakkul S. Physico-chemical properties andin vitroresponse of silk fibroin from various domestic races. J Biomed Mater Res B Appl Biomater 2014; 102:1639-47. [DOI: 10.1002/jbm.b.33142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/24/2014] [Accepted: 03/06/2014] [Indexed: 01/07/2023]
Affiliation(s)
- Kanyaluk Kaewprasit
- Department of Chemical Engineering; Faculty of Engineering, Chulalongkorn University; Bangkok 10330 Thailand
| | - Amornrat Promboon
- Department of Biochemistry; Faculty of Science, Kasetsart University; Bangkok 10900 Thailand
| | - Sorada Kanokpanont
- Department of Chemical Engineering; Faculty of Engineering, Chulalongkorn University; Bangkok 10330 Thailand
| | - Siriporn Damrongsakkul
- Department of Chemical Engineering; Faculty of Engineering, Chulalongkorn University; Bangkok 10330 Thailand
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19
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Silk proteins stimulate osteoblast differentiation by suppressing the Notch signaling pathway in mesenchymal stem cells. Nutr Res 2013; 33:162-70. [DOI: 10.1016/j.nutres.2012.11.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 11/07/2012] [Accepted: 11/12/2012] [Indexed: 11/17/2022]
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