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James JJ, Sandhya KV, Sridhar KN, Sudarson S, Basavaraj BV, Bharath S. Proteomic Characterization of Human Placenta: Insights into Potential Therapeutic Applications for Osteoarthritis. AAPS PharmSciTech 2024; 25:139. [PMID: 38890179 DOI: 10.1208/s12249-024-02851-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 05/28/2024] [Indexed: 06/20/2024] Open
Abstract
Biologics have become increasingly prominent as therapeutics in recent years due to their innate immune-privileged nature, biocompatibility, and high levels of protein biofactors. The aim of the study is to characterise the biologic, lyophilized human placenta (LHP) and explore its therapeutic potential for osteoarthritis (OA). The presence of six bioactive constituents that regulate cell-extracellular matrix interaction was identified by liquid chromatography coupled to electrospray ionization and quadrupole time-of-flight mass spectrometry (LC-ESI-QTOF/MS). Metalloproteinase inhibitor 3 (TIMP3), alpha-1 anti-trypsin (a1AT), basic fibroblast growth factor (bFGF), and transforming growth factor β1 (TGFβ1) were detected and quantified using ELISA. The total protein content present in LHP by Bradford assay was found to be 409.35 ± 0.005 μg/ml. The analytical techniques such as Attenuated Total Reflectance-Fourier Transform Infrared spectroscopy (ATR-FTIR), solid state carbon-13 Nuclear Magnetic Resonance (ssC13 NMR) spectroscopy, and Differential Scanning Calorimetry (DSC) revealed the secondary structure and conformational stability of LHP. X-Ray diffraction (XRD) studies showed its amorphous nature. Bioactivity assessment of LHP was performed in human keratinocytes (HaCaT) and human dermal fibroblasts (HDF) by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The LHP was highly proliferative against skin cells and non-toxic, based on the findings of the bioactivity assay. LHP has the potential to be used as a therapeutic agent for OA, as its characterisation unveiled its physical stability, significant concentration of bioactive components that are pertinent to cartilage repair and its conformational stability.
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Affiliation(s)
- Jithu Jerin James
- Department of Pharmaceutics, Faculty of Pharmacy, MS Ramaiah University of Applied Sciences, University House, Gnanagangothri Campus, New BEL Road, MSR Nagar, Bengaluru, 560054, India
| | - K V Sandhya
- Department of Pharmaceutics, Faculty of Pharmacy, MS Ramaiah University of Applied Sciences, University House, Gnanagangothri Campus, New BEL Road, MSR Nagar, Bengaluru, 560054, India.
| | - K N Sridhar
- Cancyte Technologies Pvt Ltd, Sri Shankara Research Centre, Rangadore Memorial Hospital, Shankarapuram, Bengaluru, India
| | - S Sudarson
- Cancyte Technologies Pvt Ltd, Sri Shankara Research Centre, Rangadore Memorial Hospital, Shankarapuram, Bengaluru, India
| | - B V Basavaraj
- Department of Pharmaceutics, Faculty of Pharmacy, MS Ramaiah University of Applied Sciences, University House, Gnanagangothri Campus, New BEL Road, MSR Nagar, Bengaluru, 560054, India
| | - S Bharath
- Department of Pharmaceutics, Faculty of Pharmacy, MS Ramaiah University of Applied Sciences, University House, Gnanagangothri Campus, New BEL Road, MSR Nagar, Bengaluru, 560054, India
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Lee HG, Jang MJ, Park BD, Um IC. Structural Characteristics and Properties of Redissolved Silk Sericin. Polymers (Basel) 2023; 15:3405. [PMID: 37631462 PMCID: PMC10459888 DOI: 10.3390/polym15163405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 07/30/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Silk sericin has garnered the attention of researchers as a promising biomaterial because of its good biocompatibility and high water retention. However, despite its useful properties, the poor storage stability of sericin has restricted its extensive use in biorelated applications. This study extracted sericin from silkworm cocoon, dried and stored it as a solid, and then dissolved it in hot water conditions to improve the storage stability of sericin for its use. The dissolution behavior of the extracted sericin solids was examined in conjunction with the structural characteristics and properties of dissolved sericin. Consequently, the results of solution viscosity, gel strength, crystallinity index, and thermal decomposition temperature indicated that the molecular weight (MW) of the dissolved sericin remained constant until a dissolution time of 5 min, following which deterioration was observed. The optimum condition of dissolution of the extracted sericin solid was 5 min at 90 °C. Conclusively, the extracted sericin could be stored in a dry state and dissolved to prepare redissolved sericin aqueous solution with the same MW as extracted sericin, thereby improving the storage stability of the sericin aqueous solution.
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Affiliation(s)
- Hye Gyeoung Lee
- Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Mi Jin Jang
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Byung-Dae Park
- Department of Wood and Paper Science, Kyungpook National University, Daegu 41566, Republic of Korea
| | - In Chul Um
- Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, Republic of Korea
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Chen S, Feng X, Li X, Liu M, Gao W, Miao Q, Wu H. Microparticles of Sericin-Dextran Conjugate for Improving the Solubility of Antiviral Drug. J Funct Biomater 2023; 14:292. [PMID: 37367256 DOI: 10.3390/jfb14060292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
A novel sericin-dextran conjugate (SDC) and self-assembled microparticles has been prepared for improving solubility of atazanavir. Microparticles of SDC were assembled by the reprecipitation method. The size and morphology of SDC microparticles could be adjusted by the concentration and solvents. Low concentration was conducive to the preparation of microspheres. Heterogeneous microspheres could be prepared in ethanol with the range of 85-390 nm, and hollow mesoporous microspheres in propanol with an average particle size of 2.5-22 µm. The aqueous solubility of atazanavir was improved to 2.22 mg/mL in buffer solutions at pH 2.0 and 1.65 mg/mL at pH 7.4 by SDC microspheres. In vitro release of atazanavir from hollow microspheres of SDC exhibited a slower release, had the lowest linear cumulative release in basic buffer (pH 8.0), and the most rapid double exponential diphase kinetic cumulative release in acid buffer (pH 2.0).
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Affiliation(s)
- Shuqi Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Xiaolong Feng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Xinwei Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Miaochang Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Wenxia Gao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Qian Miao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Huayue Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
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Shin M, Yang S, Kwak HW, Lee KH. Synthesis of gold nanoparticles using silk sericin as a green reducing and capping agent. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110960] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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5
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Lei F, Zhou G, Chen Y, Cai J, Wang J, Shuai Y, Xu Z, Wang Z, Mao C, Yang M. Arginine induces protein self-assembly into nanofibers for triggering osteogenic differentiation of stem cells. J Mater Chem B 2021; 9:9764-9769. [PMID: 34806096 DOI: 10.1039/d1tb01921j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although silk proteins are considered promising in building a scaffold for tissue engineering, one of the silk proteins, Bombyx mori silk sericin (BS), has limited processability in producing nanofibrous scaffolds because its surface charge anisotropy promotes gelation instead. To overcome this daunting challenge, we developed a mild and simple procedure for assembling BS into nanofibers and nanofibrous scaffolds. Briefly, arginine was added to the aqueous BS solution to reduce the negative charge of BS, thereby inducing BS to self-assemble into nanofibers in the solution. Circular dichroism (CD) and Fourier transform infrared (FT-IR) spectra showed that arginine promoted the formation of β-sheet conformation in BS and increased its thermal stability. Furthermore, the arginine-induced BS nanofiber solution could be casted into scaffolds made of abundant network-like nanofibrous structures. The BS scaffolds promoted cell adhesion and growth and stimulated osteogenic differentiation of the bone marrow mesenchymal stem cells (BMSCs) in the absence of differentiation inducers in culture media. Our study presents a new strategy for assembling proteins into osteogenic nanofibrous scaffolds for inducing stem cell differentiation in regenerative medicine.
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Affiliation(s)
- Fang Lei
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Guanshan Zhou
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Yuping Chen
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Jiangfeng Cai
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Yajun Shuai
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Zongpu Xu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Zhangfu Wang
- Department of Orthopaedics, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai 317000, Zhejiang, China
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, Institute for Biomedical Engineering Science and Technology, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019-5251, USA. .,School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
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Jaramillo-Quiceno N, Callone E, Dirè S, Álvarez-López C, Motta A. Boosting sericin extraction through alternative silk sources. Polym J 2021. [DOI: 10.1038/s41428-021-00539-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Manesa KC, Kebede TG, Dube S, Nindi MM. Profiling of Silk Sericin from Cocoons of Three Southern African Wild Silk Moths with a Focus on Their Antimicrobial and Antioxidant Properties. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5706. [PMID: 33327575 PMCID: PMC7765042 DOI: 10.3390/ma13245706] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/19/2022]
Abstract
Silk sericin was extracted from the cocoons of three Southern African wild silk moth species, namely Gonometapostica, G. rufobrunnae (Lepidoptera: Lasiocampidae), and Argema mimosae (Lepidoptera: Saturniidae); these three sericin extracts were analysed to determine the relationship that exists between their chemical structures and their functional properties. The relationship was investigated by utilising several methods that include the determination of the amino acid composition, and characterisation of the secondary structures with Fourier transformation infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The antibacterial properties of these three sericin extracts were evaluated by an agar well diffusion assay with three Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus, and Staphylococcus epidermidis) as test microorganisms; and, lastly, the antioxidant properties of the three sericin extracts were determined using several scavenging methods that include the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS˙+), and the ferric reducing antioxidant power (FRAP) assay. The amino acid composition in the silk sericin extracts from G. postica, G. rufobrunnea, and Argema mimosa in terms of the polar/non-polar ratio (P/NP) was found to be 65:35, 56:44, and 59:41, respectively. The FTIR spectra of these three silk sericin extracts showed distinct major bands such as amide A (3265 cm-1), amide B (3062 cm-1), amide I (1644 cm-1), amide II (1538 cm-1), and amide III (1244 cm-1). The XRD patterns of the silk sericin extracts revealed both amorphous and α-helical structures, with small crystalline regions. All three silk sericin extracts presented potent antibacterial efficacy against the three Gram-positive bacteria and were found to have excellent antioxidant activities against the tested free radicals.
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Affiliation(s)
| | | | - Simiso Dube
- Department of Chemistry, Florida Science Campus, University of South Africa, Roodepoort 1709, South Africa; (K.C.M.); (T.G.K.); (M.M.N.)
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8
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Sparkes J, Holland C. The rheological properties of native sericin. Acta Biomater 2018; 69:234-242. [PMID: 29408618 DOI: 10.1016/j.actbio.2018.01.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/13/2017] [Accepted: 01/16/2018] [Indexed: 11/29/2022]
Abstract
Unlike spider silk, spinning silkworm silk has the added intricacy of being both fibre and micron-thick glue-like coating. Whilst the natural flow properties of the fibre feedstock fibroin are now becoming more established, our understanding of the coating sericin is extremely limited and thus presents both a gap in our knowledge and a hindrance to successful exploitation of these materials. In this study we characterise sericin feedstock from the silkworm Bombyx mori in its native state and by employing both biochemical, rheological and spectroscopic tools, define a natural gold standard. Our results demonstrate that native sericin behaves as a viscoelastic shear thinning fluid, but that it does so at a considerably lower viscosity than its partner fibroin, and that its upper critical shear rate (onset of gelation) lies above that of fibroin. Together these findings provide the first evidence that in addition to acting as a binder in the construction of the cocoon, sericin is capable of lubricating the flow of fibroin within the silk gland, which has implications for future processing, modelling and biomimetic use of these materials. STATEMENT OF SIGNIFICANCE This study addresses one of the major gaps in our knowledge regarding natural silk spinning by providing rigorous rheological characterisation of the other major protein involved - sericin. This allows progress in silk flow modelling, biomimetic system design, and in assessing the quality of bioinspired and waste sericin materials by providing a better understanding of the native, undegraded system.
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Affiliation(s)
- James Sparkes
- Department of Materials Science and Engineering, The University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S. Yorks S1 3JD, UK
| | - Chris Holland
- Department of Materials Science and Engineering, The University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S. Yorks S1 3JD, UK.
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Sparkes J, Holland C. Analysis of the pressure requirements for silk spinning reveals a pultrusion dominated process. Nat Commun 2017; 8:594. [PMID: 28928362 PMCID: PMC5605702 DOI: 10.1038/s41467-017-00409-7] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 06/27/2017] [Indexed: 11/12/2022] Open
Abstract
Silks are remarkable materials with desirable mechanical properties, yet the fine details of natural production remain elusive and subsequently inaccessible to biomimetic strategies. Improved knowledge of the natural processes could therefore unlock development of a host of bio inspired fibre spinning systems. Here, we use the Chinese silkworm Bombyx mori to review the pressure requirements for natural spinning and discuss the limits of a biological extrusion domain. This provides a target for finite element analysis of the flow of silk proteins, with the aim of bringing the simulated and natural domains into closer alignment. Supported by two parallel routes of experimental validation, our results indicate that natural spinning is achieved, not by extruding the feedstock, but by the pulling of nascent silk fibres. This helps unravel the oft-debated question of whether silk is pushed or pulled from the animal, and provides impetus to the development of pultrusion-based biomimetic spinning devices.The natural production of silks remains elusive and subsequently inaccessible to biomimetic strategies. Here the authors show that silks cannot be spun by pushing alone, and that natural spinning is dominated by pultrusion, which provides design guidelines for future biomimetic spinning systems.
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Affiliation(s)
- James Sparkes
- The Natural Materials Group, Department of Materials Science and Engineering, The University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, South Yorkshire, UK
| | - Chris Holland
- The Natural Materials Group, Department of Materials Science and Engineering, The University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, South Yorkshire, UK.
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Verma VK, Subbiah S. Prospects of Silk Sericin as an Adsorbent for Removal of Ibuprofen from Aqueous Solution. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b01827] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vishal Kumar Verma
- Department of Chemical Engineering, Indian Institute of Technology, Guwahati-781039, India
| | - Senthilmurugan Subbiah
- Department of Chemical Engineering, Indian Institute of Technology, Guwahati-781039, India
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Asakura T, Endo M, Tasei Y, Ohkubo T, Hiraoki T. Hydration of Bombyx mori silk cocoon, silk sericin and silk fibroin and their interactions with water as studied by 13C NMR and 2H NMR relaxation. J Mater Chem B 2017; 5:1624-1632. [PMID: 32263934 DOI: 10.1039/c6tb03266d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The mechanical properties of Bombyx mori silk fibers, such as elasticity and tensile strength, change remarkably upon hydration. However, changes in the local conformation and dynamics of individual amino acid residues and change in the dynamics of water molecules due to hydration are not currently well understood on the molecular level. In this work, the conformations and dynamics of the hydrated Bombyx mori silk fibers, including silk cocoon (SC), silk sericin (SS) and silk fibroin (SF), were determined after sustained immersion in water by using 13C refocused insensitive nuclei enhanced by polarization transfer (INEPT) NMR, 13C cross-polarization/magic angle spinning (CP/MAS) NMR and 13C dipolar decoupled-magic angle spinning (DD/MAS) NMR. The 13C INEPT NMR spectrum reflects their mobile domain, the 13C CP/MAS NMR spectrum their rigid domain, and the 13C DD/MAS NMR spectrum both domains. The mobile domain of the hydrated SC fiber originates mainly from the hydrated SS part and the rigid domain of the hydrated SC fiber from the hydrated SF part. Moreover, the dynamics of mobile water molecules interacting with the silk fiber was studied by 2H solution NMR relaxation measurements in the silk fiber-2H2O system. Using an inverse Laplace transform algorithm, we were able to identify distinct mobile components in the relaxation times for 2H2O. Our measurements provide new insight relating to the characteristics of the hydrated structure of SC, SS and SF fibers, and the water molecules that interact with them in water. The information is relevant in light of current interest in the design of novel silk-based biomaterials which are usually in contact with blood and other body fluids.
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Affiliation(s)
- Tetsuo Asakura
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
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Further development of silk sericin as a biomaterial: comparative investigation of the procedures for its isolation from Bombyx mori silk cocoons. Prog Biomater 2016; 5:135-145. [PMID: 27525204 PMCID: PMC4965490 DOI: 10.1007/s40204-016-0052-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 07/13/2016] [Indexed: 12/12/2022] Open
Abstract
There is significant research dedicated to fibroin and sericin, the two major proteinaceous components of the silk threads produced by the domesticated silkworm, Bombyx mori. While fibroin is accepted as an established biomaterial, sericin (BMSS) has been largely neglected in this respect on the account of a hypothetical allergenic activity. Research over the past decade, including our previous study (Prog Biomater 2:14, 2013), demonstrated the biocompatibility of sericin and feasibility of its use as a biomaterial. However, the current procedures for isolating BMSS from the raw silk cocoons can only provide degraded proteins, where the size and distribution of their molecular masses are significantly altered. Based on the plausible assumption that such effects can have a negative impact on the properties of sericin as a biomaterial, in this study we investigated comparatively four different extraction procedures in order to find the method that would cause the least hydrothermal degradation of BMSS. The products resulting from commonly used procedures (extraction in boiling water, alkaline extraction, and extraction in autoclave) were compared to those resulting from aqueous extraction in mild conditions as described a long time ago by Anderlini. The molecular mass distribution in BMSS resulting from each procedure was examined by electrophoretic analysis performed on sodium dodecyl sulphate-polyacrylamide gel (SDS-PAGE), while the conformational changes pertaining to secondary structure of BMSS were evaluated by Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectrometry. The electrophoretograms indicated that the aqueous extraction in mild conditions conducted at 50 °C for durations up to 4 weeks, with/without stirring, afforded the least degraded BMSS. The infrared spectrometric analysis showed that BMSS resulting from the mild extraction method contained predominantly β-sheet conformations, while the more degradative methods (alkaline, autoclave) led to BMSS where the random-coil conformations were preferential. The long-duration aqueous extraction at 50 °C (but not at 60 °C) appeared as a valid option for obtaining BMSS products where the hydrothermally induced fragmentation of the polypeptidic components is minimized.
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Kumar JP, Bhardwaj N, Mandal BB. Cross-linked silk sericin–gelatin 2D and 3D matrices for prospective tissue engineering applications. RSC Adv 2016. [DOI: 10.1039/c6ra18654h] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphical abstract representing the isolation, fabrication and characterization of silk sericin/gelatin blended matrices for intended biological application.
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Affiliation(s)
- Jadi Praveen Kumar
- Biomaterial and Tissue Engineering Laboratory
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
| | - Nandana Bhardwaj
- Life Sciences Division
- Institute of Advanced Study in Science and Technology (IASST)
- Guwahati-781035
- India
| | - Biman B. Mandal
- Biomaterial and Tissue Engineering Laboratory
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
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14
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Zhang Q, Dong P, Chen L, Wang X, Lu S. Genipin-cross-linked thermosensitive silk sericin/poly(N-isopropylacrylamide) hydrogels for cell proliferation and rapid detachment. J Biomed Mater Res A 2013; 102:76-83. [PMID: 23606462 DOI: 10.1002/jbm.a.34670] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 02/16/2013] [Accepted: 02/19/2013] [Indexed: 11/07/2022]
Abstract
To overcome release of silk sericin (SS) from semi-interpenetrating polymer network (semi-IPN) SS/poly(N-isopropylacrylamide) (PNIPAm) hydrogels, natural biocompatible genipin (GNP) was adopted as cross-linking agent of SS. The GNP/SS/PNIPAm hydrogels with various GNP contents were prepared by radical polymerization. Depending on GNP content, the resultant hydrogels present white, yellow, or dark blue. Required time of color change for GNP/SS mixture solution shortened with increasing GNP ratio. The GNP/SS/PNIPAm hydrogels present good oscillatory shrinking-swelling behavior between 20 and 37°C. The behaviors of L929 cell proliferation, desorption, and transshipment on the surface of hydrogels and tissue culture polystyrene were investigated by 3-(4,5-dimethy thioazol-2-yl)-2,5-di-phenytetrazoliumromide and scanning electron microscopy method. In comparison with pure SS/PNIPAm hydrogels, the introduction of certain GNP can accelerate cell adhesion and proliferation. Due to reversible change between hydrophobicity and hydrophilicity, by lowering temperature to 4°C from 37°C, L929 cells could spontaneously detach from the surface of hydrogels without the need for trypsin or ethylenediaminetetraacetic acid. The detached cells could subsequently be recultured. The prepared hydrogel and detached cells have potential applications in biomedical fields, such as organs or tissue regeneration and cancer or disease therapy.
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Affiliation(s)
- Qingsong Zhang
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China
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Shahid-ul-Islam, Shahid M, Mohammad F. Green Chemistry Approaches to Develop Antimicrobial Textiles Based on Sustainable Biopolymers—A Review. Ind Eng Chem Res 2013. [DOI: 10.1021/ie303627x] [Citation(s) in RCA: 189] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shahid-ul-Islam
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi-110025,
India
| | - Mohammad Shahid
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi-110025,
India
| | - Faqeer Mohammad
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi-110025,
India
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16
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Yun H, Oh H, Kim MK, Kwak HW, Lee JY, Um IC, Vootla SK, Lee KH. Extraction conditions of Antheraea mylitta sericin with high yields and minimum molecular weight degradation. Int J Biol Macromol 2013; 52:59-65. [DOI: 10.1016/j.ijbiomac.2012.09.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 09/11/2012] [Accepted: 09/24/2012] [Indexed: 11/28/2022]
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17
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Quantifying the fraction of alanine residues in an α-helical conformation in hornet silk using solid-state NMR. Polym J 2012. [DOI: 10.1038/pj.2012.93] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Potential of 2D crosslinked sericin membranes with improved biostability for skin tissue engineering. Cell Tissue Res 2012; 347:783-94. [DOI: 10.1007/s00441-011-1269-4] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 10/20/2011] [Indexed: 11/26/2022]
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20
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Wray LS, Hu X, Gallego J, Georgakoudi I, Omenetto FG, Schmidt D, Kaplan DL. Effect of processing on silk-based biomaterials: reproducibility and biocompatibility. J Biomed Mater Res B Appl Biomater 2011; 99:89-101. [PMID: 21695778 DOI: 10.1002/jbm.b.31875] [Citation(s) in RCA: 227] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Revised: 03/13/2011] [Accepted: 03/17/2011] [Indexed: 11/07/2022]
Abstract
Silk fibroin has been successfully used as a biomaterial for tissue regeneration. To prepare silk fibroin biomaterials for human implantation a series of processing steps are required to purify the protein. Degumming to remove inflammatory sericin is a crucial step related to biocompatibility and variability in the material. Detailed characterization of silk fibroin degumming is reported. The degumming conditions significantly affected cell viability on the silk fibroin material and the ability to form three-dimensional porous scaffolds from the silk fibroin, but did not affect macrophage activation or β-sheet content in the materials formed. Methods are also provided to determine the content of residual sericin in silk fibroin solutions and to assess changes in silk fibroin molecular weight. Amino acid composition analysis was used to detect sericin residuals in silk solutions with a detection limit between 1.0 and 10% wt/wt, while fluorescence spectroscopy was used to reproducibly distinguish between silk samples with different molecular weights. Both methods are simple and require minimal sample volume, providing useful quality control tools for silk fibroin preparation processes.
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Affiliation(s)
- Lindsay S Wray
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, USA
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Oh H, Lee JY, Kim MK, Um IC, Lee KH. Refining hot-water extracted silk sericin by ethanol-induced precipitation. Int J Biol Macromol 2011; 48:32-7. [DOI: 10.1016/j.ijbiomac.2010.09.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 09/20/2010] [Accepted: 09/20/2010] [Indexed: 10/19/2022]
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22
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Chen WQ, Priewalder H, John JPP, Lubec G. Silk cocoon of Bombyx mori: proteins and posttranslational modifications--heavy phosphorylation and evidence for lysine-mediated cross links. Proteomics 2010; 10:369-79. [PMID: 20029844 DOI: 10.1002/pmic.200900624] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Although silk is used to produce textiles and serves as a valuable biomaterial in medicine, information on silk proteins of the cocoon is limited. Scanning electron microscopy was applied to morphologically characterise the sample and the solubility of cocoon in lithium thiocyanate and 2-DE was carried out with multi-enzyme in-gel digestion followed by MS identification of silk-peptides. High-sequence coverage of the silk cocoon proteins fibroin light and heavy chain, sericins and fibrohexamerins was revealed and PTMs as heavy phosphorylation of silk fibroin heavy chain; lysine hydroxylation and Lys->allysine formation have been observed providing evidence for lysine-mediated cross linking of silk as found in collagens, which has not been reported so far. Tyrosine oxidation verified the presence of di-tyrosine cross links. A high degree of sequence conflicts probably representing single-nucleotide polymorphisms was observed. PTM and sequence conflicts may be modulating structure and physicochemical properties of silk.
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Affiliation(s)
- Wei-Qiang Chen
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
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Srihanam P, Simcheur W, Srisuwan Y. Study on silk sericin and chitosan blend film: morphology and secondary structure characterizations. Pak J Biol Sci 2010; 12:1487-90. [PMID: 20180324 DOI: 10.3923/pjbs.2009.1487.1490] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study aimed to prepare and characterize silk sericin and chitosan blend film as well as the native silk sericin and chitosan films. The films were observed their morphology using Scanning Electron Microscope (SEM). The secondary structures of the films were analyzed using Fourier Transform Infrared (FTIR) spectroscopy. Transparency of the films was investigated with UV-visible spectroscopy. The results found that all of silk films were smooth throughout the film surfaces, including blend film. This showed that silk sericin and chitosan very well compatible. However, phase separation is also being observed. It is show that the interaction between two materials might be miscible together. The FTIR results indicated that the most of films were composed both in random coil and beta-sheet forms which predominantly of the random coil structures. The results suggesting the blend film between sericin and chitosan did not change the intramolecular structure when compared to the native films. The silk sericin and blend films were slightly yellowish color and were higher transparent than chitosan film. However, % transmittance at lamda max of 660 nm showed that all of films have similar values. The result suggested that the transparency of the film did not change even blend together. It is a promising that both silk sericin and chitosan would be blended into many forms for applications in specifically fields.
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Affiliation(s)
- P Srihanam
- Department of Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand
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Geppi M, Mollica G, Borsacchi S, Cappellozza S. Proton Spin−Lattice Relaxation in Silkworm Cocoons: Physisorbed Water and Serine Side-Chain Motions. J Phys Chem B 2010; 114:2586-92. [DOI: 10.1021/jp907843r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marco Geppi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy, and CRA - Unità di Ricerca di Apicoltura e Bachicoltura di Bologna, sede di Padova, v. L. Eulero, 6a, 35143 Padova, Italy
| | - Giulia Mollica
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy, and CRA - Unità di Ricerca di Apicoltura e Bachicoltura di Bologna, sede di Padova, v. L. Eulero, 6a, 35143 Padova, Italy
| | - Silvia Borsacchi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy, and CRA - Unità di Ricerca di Apicoltura e Bachicoltura di Bologna, sede di Padova, v. L. Eulero, 6a, 35143 Padova, Italy
| | - Silvia Cappellozza
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy, and CRA - Unità di Ricerca di Apicoltura e Bachicoltura di Bologna, sede di Padova, v. L. Eulero, 6a, 35143 Padova, Italy
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25
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Natural protective glue protein, sericin bioengineered by silkworms: Potential for biomedical and biotechnological applications. Prog Polym Sci 2008. [DOI: 10.1016/j.progpolymsci.2008.08.002] [Citation(s) in RCA: 263] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dash R, Ghosh SK, Kaplan DL, Kundu SC. Purification and biochemical characterization of a 70 kDa sericin from tropical tasar silkworm, Antheraea mylitta. Comp Biochem Physiol B Biochem Mol Biol 2007; 147:129-34. [PMID: 17350301 DOI: 10.1016/j.cbpb.2007.01.009] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2006] [Revised: 01/07/2007] [Accepted: 01/08/2007] [Indexed: 11/17/2022]
Abstract
Sericin isolated from the cocoon of the tropical tasar silkmoth Antheraea mylitta showed three major bands, with the lowest 70 kDa. This band was purified by anion exchange chromatography. Immunoblotting with concanavalin-A suggests a glycoprotein and CD analysis of secondary structure includes beta-sheet. Amino acid analysis shows that the protein is enriched in glycine and serine while the mole percentages of these two amino acids are different from sericin of mulberry silkworm. An anti A. mylitta sericin antibody was able to cross-react with sericin from A. assamensis but not the sericin of Bombyx mori and Philosamia ricini. Immunoblot analysis with proteins isolated from middle silk gland of A. mylitta at different developmental stages of larva showed that the 70 kDa sericin is developmentally regulated. These data extend the range of biochemical features found in this unusual family of proteins and may help in developing an improved understanding of their role in forming environmentally stable fibroin fiber-sericin composite structures (cocoons).
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Affiliation(s)
- Rupesh Dash
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, India
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Teramoto H, Kakazu A, Yamauchi K, Asakura T. Role of Hydroxyl Side Chains inBombyxmoriSilk Sericin in Stabilizing Its Solid Structure. Macromolecules 2007. [DOI: 10.1021/ma062604e] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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