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Liao S, Qiu G, Hu Y, Guo B, Qiu Y. Separable and Inseparable Silk Fibroin Microneedles for the Transdermal Delivery of Colchicine: Development, Characterization, and Comparisons. AAPS PharmSciTech 2023; 25:3. [PMID: 38114734 DOI: 10.1208/s12249-023-02716-3] [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: 06/29/2023] [Accepted: 11/30/2023] [Indexed: 12/21/2023] Open
Abstract
Colchicine is the first-line option for both the treatment and prophylaxis of gout flares. However, due to potentially severe side effects, the clinical use of colchicine is limited. A well-tolerated and safe delivery system for colchicine is widely desired. For this purpose, colchicine-loaded inseparable microneedles were fabricated using silk fibroin. Additionally, separable microneedles made of silk fibroin as the needle tips and PVP K30 as the base material were developed. Both types of microneedles were evaluated for their mechanical strength, swelling and dissolution characteristics, insertion abilities, degradation properties, in vitro penetration, skin irritation, and in vivo anti-gout effects. The results demonstrated that separable microneedles had greater mechanical strength and insertion ability. Moreover, the separable microneedles separated quickly and caused little skin irritation. In the pharmacodynamic test, mice with acute gouty arthritis responded significantly to treatment with separable microneedles. In conclusion, the separable silk fibroin-based microneedles provide a promising route for colchicine delivery.
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Affiliation(s)
- Shiji Liao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Guirong Qiu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yanping Hu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Bohong Guo
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China
| | - Yuqin Qiu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China.
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Zhou J, Zhou X, Pan L, Deng Y, Zheng H, Peng Z, Wan J, Zhou Y, Wang B. Molecular Evidence of Structural Changes in Silk Using Unlimited Degradation Mass Spectrometry. ACS OMEGA 2023; 8:34410-34419. [PMID: 37780015 PMCID: PMC10536863 DOI: 10.1021/acsomega.3c02254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/03/2023] [Indexed: 10/03/2023]
Abstract
Proteomics has important uses in archeological science because it can distinguish species, reveal the evolution of paleontology, and provide biological evidence of historical events. However, this technique still has full potential in the study of silk aging mechanisms. In this work, we propose a strategy combining unlimited degradation with mass-spectrometry-based proteomics techniques, which interpret protein fragmentation propensity and secondary structure changes by detecting content changes of specific peptide groups in complex proteomes. This approach was employed to study the conformational changes in silk microscopic crystals after heat treatment. Combining conventional mechanics and crystallographic characterization, a thermal aging degradation mechanism model was proposed. At the same time, it explained the interesting problem that the crystallinity remained unchanged, but the mechanical properties decreased significantly. Focusing on the unlimited degradation process, this method will be widely applicable to the study of silk and wool aging processes and regenerated silk fibroin.
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Affiliation(s)
- Jie Zhou
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
| | - Xiong Zhou
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
| | - Lindan Pan
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
| | - Yefeng Deng
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
| | - Hailing Zheng
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
- Key
Scientific Research Base of Textile Conservation, State Administration for Cultural Heritage, China National Silk Museum, Hangzhou 310002, China
| | - Zhiqin Peng
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
| | - Junmin Wan
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
| | - Yang Zhou
- Key
Scientific Research Base of Textile Conservation, State Administration for Cultural Heritage, China National Silk Museum, Hangzhou 310002, China
| | - Bing Wang
- Institute
of Textile Conservation, Zhejiang Sci-Tech
University, Hangzhou 310018, China
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Huang L, Shi J, Zhou W, Zhang Q. Advances in Preparation and Properties of Regenerated Silk Fibroin. Int J Mol Sci 2023; 24:13153. [PMID: 37685960 PMCID: PMC10487664 DOI: 10.3390/ijms241713153] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Over the years, silk fibroin (SF) has gained significant attention in various fields, such as biomedicine, tissue engineering, food processing, photochemistry, and biosensing, owing to its remarkable biocompatibility, machinability, and chemical modifiability. The process of obtaining regenerated silk fibroin (RSF) involves degumming, dissolving, dialysis, and centrifugation. RSF can be further fabricated into films, sponges, microspheres, gels, nanofibers, and other forms. It is now understood that the dissolution method selected greatly impacts the molecular weight distribution and structure of RSF, consequently influencing its subsequent processing and application. This study comprehensively explores and summarizes different dissolution methods of SF while examining their effects on the structure and performance of RSF. The findings presented herein aim to provide valuable insights and references for researchers and practitioners interested in utilizing RSF in diverse fields.
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Affiliation(s)
| | | | | | - Qing Zhang
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
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4
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Adachi K. Analytical insights for silk science and technology. ANAL SCI 2023; 39:427-429. [PMID: 36991250 DOI: 10.1007/s44211-023-00283-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Affiliation(s)
- Kenta Adachi
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan.
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Zou S, Yao X, Shao H, Reis RL, Kundu SC, Zhang Y. Nonmulberry silk fibroin-based biomaterials: Impact on cell behavior regulation and tissue regeneration. Acta Biomater 2022; 153:68-84. [PMID: 36113722 DOI: 10.1016/j.actbio.2022.09.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/28/2022] [Accepted: 09/08/2022] [Indexed: 11/01/2022]
Abstract
Silk fibroin (SF) is a promising biomaterial due to its good biocompatibility, easy availability, and high mechanical properties. Compared with mulberry silk fibroin (MSF), nonmulberry silk fibroin (NSF) isolated from typical nonmulberry silkworm silk exhibits unique arginine-glycine-aspartic acid (RGD) sequences with favorable cell adhesion enhancing effect. This inherent property probably makes the NSF more suitable for cell culture and tissue regeneration-related applications. Accordingly, various types of NSF-based biomaterials, such as particles, films, fiber mats, and 3D scaffolds, are constructed and their application potential in different biomedical fields is extensively investigated. Based on these promising NSF biomaterials, this review firstly makes a systematical comparison between the molecular structure and properties of MSF and typical NSF and highlights the unique properties of NSF. In addition, we summarize the effective fabrication strategies from degummed nonmulberry silk fibers to regenerated NSF-based biomaterials with controllable formats and their recent application progresses in cell behavior regulation and tissue regeneration. Finally, current challenges and future perspectives for the fabrication and application of NSF-based biomaterials are discussed. Related research and perspectives may provide valuable references for designing and modifying effective NSF-based and other natural biomaterials. STATEMENT OF SIGNIFICANCE: There exist many reviews about mulberry silk fibroin (MSF) biomaterials and their biomedical applications, while that about nonmulberry silk fibroin (NSF) biomaterials is scarce. Compared with MSF, NSF exhibits unique arginine-glycine-aspartic acid sequences with promising cell adhesion enhancing effect, which makes NSF more suitable for cell culture and tissue regeneration related applications. Focusing on these advanced NSF biomaterials, this review has systematically compared the structure and properties of MSF and NSF, and emphasized the unique properties of NSF. Following that, the effective construction strategies for NSF-based biomaterials are summarized, and their recent applications in cell behavior regulations and tissue regenerations are highlighted. Furthermore, current challenges and future perspectives for the fabrication and application of NSF-based biomaterials were discussed.
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Affiliation(s)
- Shengzhi Zou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiang Yao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Huili Shao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Rui L Reis
- I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Barco, Guimarães 4805-017, Portugal
| | - Subhas C Kundu
- I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Barco, Guimarães 4805-017, Portugal
| | - Yaopeng Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China.
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Zhang D, Zhang B, Zhu L. A new method for shellac binder detection in ancient building mortars. NEW J CHEM 2022. [DOI: 10.1039/d2nj00016d] [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
Shellac, also known as lac, is composed mainly of aleuritic acid.
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Affiliation(s)
- Di Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Bingjian Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
- Department of Cultural Heritage and Museology, Zhejiang University, Hangzhou, 310028, China
| | - Longguan Zhu
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
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Huang Y, Wu W, Liu H, Chen Y, Li B, Gou Z, Li X, Gou M. 3D printing of functional nerve guide conduits. BURNS & TRAUMA 2021; 9:tkab011. [PMID: 34212061 PMCID: PMC8240533 DOI: 10.1093/burnst/tkab011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Nerve guide conduits (NGCs), as alternatives to nerve autografts and allografts, have been widely explored as an advanced tool for the treatment of peripheral nerve injury. However, the repairing efficiency of NGCs still needs significant improvements. Functional NGCs that provide a more favorable microenvironment for promoting axonal elongation and myelination are of great importance. In recent years, 3D printing technologies have been widely applied in the fabrication of customized and complex constructs, exhibiting great potential for tissue engineering applications, especially for the construction of functional NGCs. In this review, we introduce the 3D printing technologies for manufacturing functional NGCs, including inkjet printing, extrusion printing, stereolithography-based printing and indirect printing. Further, we summarize the current methods and strategies for constructing functional NGCs, such as designing special conduit architectures, using appropriate materials and co-printing with different biological cues. Finally, the challenges and prospects for construction of functional NGCs are also presented.
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Affiliation(s)
- Yulan Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenbi Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Haofan Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuwen Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Bo Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhiyuan Gou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xun Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China.,Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Maling Gou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
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