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Ma C, Zhao H, Sun Y, Ding W, Wang H, Li Y, Gu Z. Deciphering disulfidptosis: Uncovering a lncRNA-based signature for prognostic assessment, personalized immunotherapy, and therapeutic agent selection in lung adenocarcinoma patients. Cell Signal 2024; 117:111105. [PMID: 38369264 DOI: 10.1016/j.cellsig.2024.111105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/30/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Disulfidptosis, a recently identified type of regulated cell death, plays critical roles in various biological processes of cancer; however, whether they can impact the prognosis of lung adenocarcinoma (LUAD) remains to be fully elucidated. We aimed to adopt this concept to develop and validate a lncRNA signature for LUAD prognostic prediction. METHODS For this study, the TCGA-LUAD dataset was used as the training cohort, and multiple datasets from the GEO database were pooled as the validation cohort. Disulfidptosis regulated genes were obtained from published studies, and various statistical methods, including Kaplan-Meier (KM), Cox, and LASSO, were used to train our gene signature DISULncSig. We utilized KM analysis, COX analysis, receiver operating characteristic analysis, time-dependent AUC analysis, principal component analysis, nomogram predictor analysis, and functional assays in our validation process. We also compared DISULncSig with previous studies. We performed analyses to evaluate DISULncSig's immunotherapeutic ability, focusing on eight immune algorithms, TMB, and TIDE. Additionally, we investigated potential drugs that could be effective in treating patients with high-risk scores. Additionally qRT-PCR examined the expression patterns of DISULncSig lncRNAs, and the ability of DISULncSig in pan-cancer was also assessed. RESULTS DISULncSig containing twelve lncRNAs was trained and showed strong predictive ability in the validation cohort. Compared with previous similar studies, DISULncSig had more prognostic ability advantages. DISULncSig was closely related to the immune status of LUAD, and its tight relationship with checkpoints KIR2DL3, IL10, IL2, CD40LG, SELP, BTLA, and CD28 may be the key to its potential immunotherapeutic ability. For the high DISULncSig score population, we found ten drug candidates, among which epothilone-b may have the most potential. The pan-cancer analysis found that DISULncSig was a risk factor in multiple cancers. Additionally, we discovered that some of the DISULncSig lncRNAs could play crucial roles in specific cancer types. CONCLUSION The current study established a powerful prognostic DISULncSig signature for LUAD that was also valid for most pan-cancers. This signature could serve as a potential target for immunotherapy and might help the more efficient application of drugs to specific populations.
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Affiliation(s)
- Chao Ma
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Huan Zhao
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Yang Sun
- Department of Cardiothoracic Surgery, Zibo First Hospital, Weifang Medical University, Zibo, Shandong, PR China
| | - Weizheng Ding
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Hui Wang
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Yixin Li
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, PR China.
| | - Zhuoyu Gu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, PR China.
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2
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Li Y, Gong JY, Wang P, Fu H, Yousef F, Xie R, Wang W, Liu Z, Pan DW, Ju XJ, Chu LY. Dissolving microneedle system containing Ag nanoparticle-decorated silk fibroin microspheres and antibiotics for synergistic therapy of bacterial biofilm infection. J Colloid Interface Sci 2024; 661:123-138. [PMID: 38295695 DOI: 10.1016/j.jcis.2024.01.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/11/2024] [Accepted: 01/21/2024] [Indexed: 02/27/2024]
Abstract
Most cases of delayed wound healing are associated with bacterial biofilm infections due to high antibiotic resistance. To improve patient compliance and recovery rates, it is critical to develop minimally invasive and efficient methods to eliminate bacterial biofilms as an alternative to clinical debridement techniques. Herein, we develop a dissolving microneedle system containing Ag nanoparticles (AgNPs)-decorated silk fibroin microspheres (SFM-AgNPs) and antibiotics for synergistic treatment of bacterial biofilm infection. Silk fibroin microspheres (SFM) are controllably prepared in an incompatible system formed by a mixture of protein and carbohydrate solutions by using a mild all-aqueous phase method and serve as biological templates for the synthesis of AgNPs. The SFM-AgNPs exert dose- and time-dependent broad-spectrum antibacterial effects by inducing bacterial adhesion. The combination of SFM-AgNPs with antibiotics breaks the limitation of the antibacterial spectrum and achieves better efficacy with reduced antibiotic dosage. Using hyaluronic acid (HA) as the soluble matrix, the microneedle system containing SFM-AgNPs and anti-Gram-positive coccus drug (Mupirocin) inserts into the bacterial biofilms with sufficient strength, thereby effectively delivering the antibacterial agents and realizing good antibiofilm effect on Staphylococcus aureus-infected wounds. This work demonstrates the great potential for the development of novel therapeutic systems for eradicating bacterial biofilm infections.
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Affiliation(s)
- Yao Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Jue-Ying Gong
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Po Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Han Fu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Faraj Yousef
- Department of Chemical Engineering, University of Chester, Chester CH1 4BJ, United Kingdom
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Da-Wei Pan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
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3
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Huang W, Wang S, Feng Z, Zhou D, Bai W. Tyrosinase-Modified UHMW SELP Polymers as Wet and Underwater Adhesives to Achieve Multi-interface Adhesion. ACS Synth Biol 2024; 13:1191-1204. [PMID: 38536670 DOI: 10.1021/acssynbio.3c00644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The presence of a hydration layer in humid and underwater environments challenges adhesive-substrate interactions and prevents effective bonding, which has become a significant obstacle to the development of adhesives in the industrial and biomedical fields. In this study, ultrahigh-molecular-weight (UHMW) silk-elastin-like proteins (SELP) with 3,4-dihydroxyphenylalanine (DOPA) converted from tyrosine residues by tyrosinase exhibited excellent adhesive properties on different interfaces, such as glass, aluminum, wood, polypropylene sheets, and pigskin, under both dry and wet conditions. Additionally, by incorporating trace amounts of cross-linking agents like Fe3+, NaIO4, and tris(hydroxymethyl) phosphine (THP), the mussel-inspired adhesives maintained a stable and excellent adhesion, broadening the conditions of application. Notably, the UHMW SELP adhesive exhibited remarkable underwater adhesion properties with a shear strength of 0.83 ± 0.17 MPa on glass. It also demonstrated good adhesion to biological tissues including the kidney, liver, heart, and lungs. In vitro cytocompatibility testing using L929 cells showed minimal toxicity, highlighting its potential application in the biomedical field. The sustainable, cytocompatible, cost-effective, and highly efficient adhesive provides valuable insights for the design and development of a new protein-based underwater adhesive for medical application.
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Affiliation(s)
- Wenxin Huang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Sijia Wang
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, China
- National Center of Technology Innovation for Synthetic Biology, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Zhaoxuan Feng
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, China
- National Center of Technology Innovation for Synthetic Biology, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Dasen Zhou
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Wenqin Bai
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, China
- National Center of Technology Innovation for Synthetic Biology, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, China
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4
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Wang R, He X, Chen Z, Su S, Bai J, Liu H, Zhou F. A nanoparticle reinforced microporous methacrylated silk fibroin hydrogel to promote bone regeneration. Biomater Sci 2024; 12:2121-2135. [PMID: 38456326 DOI: 10.1039/d3bm01901b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Natural polymer-based hydrogels have been widely applied in bone tissue engineering due to their excellent biocompatibility and outstanding ability of drug encapsulation. However, they have relatively weak mechanical properties and lack bioactivity. Hence, we developed a bioactive nanoparticle composite hydrogel by incorporating LAPONITE®, which is an osteo-inductive inorganic nanoparticle. The incorporation of the nanoparticle significantly enhanced its mechanical properties. In vitro evaluation indicated that the nanocomposite hydrogel could exhibit good biocompatibility. Besides, the nanocomposite hydrogel was proved to have excellent osteogenic ability with up-regulated expression of osteogenic markers such as type I collagen (COL-I), runt-related transcription factor-2 (Runx-2) and osteocalcin (OCN). Furthermore, the in vivo study confirmed that the composite nanocomposite hydrogel could significantly promote new bone formation, providing a prospective strategy for bone tissue regeneration.
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Affiliation(s)
- Ruideng Wang
- Department of Orthopedics, Peking University Third Hospital, Beijing, China.
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
| | - Xi He
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
| | - Zhengyang Chen
- Department of Orthopedics, Peking University Third Hospital, Beijing, China.
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
| | - Shilong Su
- Department of Orthopedics, Peking University Third Hospital, Beijing, China.
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
| | - Jinwu Bai
- Department of Orthopedics, Peking University Third Hospital, Beijing, China.
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
| | - Haifeng Liu
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
| | - Fang Zhou
- Department of Orthopedics, Peking University Third Hospital, Beijing, China.
- Engineering Research Center of Bone and Joint Precision Medicine, Beijing, China
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5
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Dixit A, Mahajan A, Saxena R, Chakraborty S, Katti DS. Engineering sulfated polysaccharides and silk fibroin based injectable IPN hydrogels with stiffening and growth factor presentation abilities for cartilage tissue engineering. Biomater Sci 2024; 12:2067-2085. [PMID: 38470831 DOI: 10.1039/d3bm01466e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The extracellular matrix (ECM) presents a framework for various biological cues and regulates homeostasis during both developing and mature stages of tissues. During development of cartilage, the ECM plays a critical role in endowing both biophysical and biochemical cues to the progenitor cells. Hence, designing microenvironments that recapitulate these biological cues as provided by the ECM during development may facilitate the engineering of cartilage tissue. In the present study, we fabricated an injectable interpenetrating hydrogel (IPN) system which serves as an artificial ECM and provides chondro-inductive niches for the differentiation of stem cells to chondrocytes. The hydrogel was designed to replicate the gradual stiffening (as a biophysical cue) and the presentation of growth factors (as a biochemical cue) as provided by the natural ECM of the tissue, thus exemplifying a biomimetic approach. This dynamic stiffening was achieved by incorporating silk fibroin, while the growth factor presentation was accomplished using sulfated-carboxymethyl cellulose. Silk fibroin and sulfated-carboxymethyl cellulose (s-CMC) were combined with tyraminated-carboxymethyl cellulose (t-CMC) and crosslinked using HRP/H2O2 to fabricate s-CMC/t-CMC/silk IPN hydrogels. Initially, the fabricated hydrogel imparted a soft microenvironment to promote chondrogenic differentiation, and with time it gradually stiffened to offer mechanical support to the joint. Additionally, the presence of s-CMC conferred the hydrogel with the property of sequestering cationic growth factors such as TGF-β and allowing their prolonged presentation to the cells. More importantly, TGF-β loaded in the developed hydrogel system remained active and induced chondrogenic differentiation of stem cells, resulting in the deposition of cartilage ECM components which was comparable to the hydrogels that were treated with TGF-β provided through media. Overall, the developed hydrogel system acts as a reservoir of the necessary biological cues for cartilage regeneration and simultaneously provides mechanical support for load-bearing tissues such as cartilage.
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Affiliation(s)
- Akansha Dixit
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India.
- The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Aman Mahajan
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India.
- The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Rakshita Saxena
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India.
- The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Saptomee Chakraborty
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India.
- The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Dhirendra S Katti
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India.
- The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology-Kanpur, Kanpur-208016, Uttar Pradesh, India
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6
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Yang L, Zi C, Li Y, Huang J, Gu Z, Wang C, Hu JM, Jiang Z, Zhang W. An in-depth investigation of molecular interaction in zeaxanthin/corn silk glycan complexes and its positive role in hypoglycemic activity. Food Chem 2024; 438:137986. [PMID: 38000158 DOI: 10.1016/j.foodchem.2023.137986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 10/08/2023] [Accepted: 11/11/2023] [Indexed: 11/26/2023]
Abstract
Glycans in corn silk could interact with co-existing small molecules during its absorption, digestion, and biological process. In order to understand the exact mechanism of action of zeaxanthin, it is critical to investigate the biomolecular interactions, which were necessary to form a glycan-small molecule complex and yet produce the bioactive effect. So far, the in-depth study of these natural interactions has not been fully elucidated. Here, we probed that the molecular interaction between zeaxanthin (ZEA) and glycans from corn silk (CSGs) was driven by enthalpy. More importantly, it was the first time found that CSGs can bind to lipid-soluble ZEA could be binded with CSGs. It was the first report on the thermostability of insulin structure and natural glycans. This study should facilitate our understanding of the interaction between lipid soluble molecules and glycans, and provide a more comprehensive understanding of the nutrient base in food.
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Affiliation(s)
- Liu Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa 999078, Macau; State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Chengting Zi
- College of Science, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Yanlang Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Jia Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Zhijia Gu
- Key Laboratory for Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Caiyun Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa 999078, Macau
| | - Jiang-Miao Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.
| | - Zhihong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa 999078, Macau.
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa 999078, Macau.
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7
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Das JM, Upadhyay J, Monaghan MG, Borah R. Impact of the Reduction Time-Dependent Electrical Conductivity of Graphene Nanoplatelet-Coated Aligned Bombyx mori Silk Scaffolds on Electrically Stimulated Axonal Growth. ACS Appl Bio Mater 2024; 7:2389-2401. [PMID: 38502100 PMCID: PMC11022174 DOI: 10.1021/acsabm.4c00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/02/2024] [Accepted: 03/05/2024] [Indexed: 03/20/2024]
Abstract
Graphene-based nanomaterials, renowned for their outstanding electrical conductivity, have been extensively studied as electroconductive biomaterials (ECBs) for electrically stimulated tissue regeneration. However, using eco-friendly reducing agents like l-ascorbic acid (l-Aa) can result in lower conductive properties in these ECBs, limiting their full potential for smooth charge transfer in living tissues. Moreover, creating a flexible biomaterial scaffold using these materials that accurately mimics a specific tissue microarchitecture, such as nerves, poses additional challenges. To address these issues, this study developed a microfibrous scaffold of Bombyx mori (Bm) silk fibroin uniformly coated with graphene nanoplatelets (GNPs) through a vacuum coating method. The scaffold's electrical conductivity was optimized by varying the reduction period using l-Aa. The research systematically investigated how different reduction periods impact scaffold properties, focusing on electrical conductivity and its significance on electrically stimulated axonal growth in PC12 cells. Results showed that a 48 h reduction significantly increased surface electrical conductivity by 100-1000 times compared to a shorter or no reduction process. l-Aa contributed to stabilizing the reduced GNPs, demonstrated by a slow degradation profile and sustained conductivity even after 60 days in a proteolytic environment. β (III) tubulin immunostaining of PC12 cells on varied silk:GNP scaffolds under pulsed electrical stimulation (ES, 50 Hz frequency, 1 ms pulse width, and amplitudes of 100 and 300 mV/cm) demonstrates accelerated axonal growth on scaffolds exhibiting higher conductivity. This is supported by upregulated intracellular Ca2+ dynamics immediately after ES on the scaffolds with higher conductivity, subjected to a prolonged reduction period. The study showcases a sustainable reduction approach using l-Aa in combination with natural Bm silk fibroin to create a highly conductive, mechanically robust, and stable silk:GNP-based aligned fibrous scaffold. These scaffolds hold promise for functional regeneration in electrically excitable tissues such as nerves, cardiac tissue, and muscles.
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Affiliation(s)
- Jitu Mani Das
- Life
Sciences Division, Institute of Advanced
Study in Science & Technology, Guwahati 781035, India
| | - Jnanendra Upadhyay
- Department
of Physics, Dakshin Kamrup College, Kamrup, Mirza, Assam 781125, India
| | - Michael G. Monaghan
- Department
of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin D2, Ireland
- Advanced
Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons
in Ireland, Dublin D2, Ireland
- Trinity
Centre for Biomedical Engineering, Trinity
College Dublin, Dublin D2, Ireland
- CÚRAM,
Centre for Research in Medical Devices, National University of Ireland, Galway H91 W2TY, Ireland
| | - Rajiv Borah
- Life
Sciences Division, Institute of Advanced
Study in Science & Technology, Guwahati 781035, India
- Department
of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin D2, Ireland
- Advanced
Materials and BioEngineering Research (AMBER), Centre at Trinity College Dublin and the Royal College of Surgeons
in Ireland, Dublin D2, Ireland
- Trinity
Centre for Biomedical Engineering, Trinity
College Dublin, Dublin D2, Ireland
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8
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Adams SA, Gurajapu A, Qiang A, Gerbaulet M, Schulz S, Tsutsui ND, Ramirez SR, Gillespie RG. Chemical species recognition in an adaptive radiation of Hawaiian Tetragnatha spiders (Araneae: Tetragnathidae). Proc Biol Sci 2024; 291:20232340. [PMID: 38593845 PMCID: PMC11003775 DOI: 10.1098/rspb.2023.2340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 03/05/2024] [Indexed: 04/11/2024] Open
Abstract
Studies of adaptive radiations have played a central role in our understanding of reproductive isolation. Yet the focus has been on human-biased visual and auditory signals, leaving gaps in our knowledge of other modalities. To date, studies on chemical signals in adaptive radiations have focused on systems with multimodal signalling, making it difficult to isolate the role chemicals play in reproductive isolation. In this study we examine the use of chemical signals in the species recognition and adaptive radiation of Hawaiian Tetragnatha spiders by focusing on entire communities of co-occurring species, and conducting behavioural assays in conjunction with chemical analysis of their silks using gas chromatography-mass spectrometry. Male spiders significantly preferred the silk extracts of conspecific mates over those of sympatric heterospecifics. The compounds found in the silk extracts, long chain alkyl methyl ethers, were remarkably species-specific in the combination and quantity. The differences in the profile were greatest between co-occurring species and between closely related sibling species. Lastly, there were significant differences in the chemical profile between two populations of a particular species. These findings provide key insights into the role chemical signals play in the attainment and maintenance of reproductive barriers between closely related co-occurring species.
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Affiliation(s)
- Seira A. Adams
- Department of Environmental Science, Policy, and Management, University of California, 130 Mulford Hall, #3114, Berkeley, CA 94720, USA
- Center for Population Biology, University of California, 2320 Storer Hall, Davis, CA 95616, USA
- Department of Evolution and Ecology, University of California, 2320 Storer Hall, Davis, CA 95616, USA
| | - Anjali Gurajapu
- Department of Environmental Science, Policy, and Management, University of California, 130 Mulford Hall, #3114, Berkeley, CA 94720, USA
| | - Albert Qiang
- Department of Environmental Science, Policy, and Management, University of California, 130 Mulford Hall, #3114, Berkeley, CA 94720, USA
| | - Moritz Gerbaulet
- Institute of Organic Chemistry, Technische Universität Braunschweig, Hagenring 30, Braunschweig 38106, Germany
| | - Stefan Schulz
- Institute of Organic Chemistry, Technische Universität Braunschweig, Hagenring 30, Braunschweig 38106, Germany
| | - Neil D. Tsutsui
- Department of Environmental Science, Policy, and Management, University of California, 130 Mulford Hall, #3114, Berkeley, CA 94720, USA
| | - Santiago R. Ramirez
- Center for Population Biology, University of California, 2320 Storer Hall, Davis, CA 95616, USA
- Department of Evolution and Ecology, University of California, 2320 Storer Hall, Davis, CA 95616, USA
| | - Rosemary G. Gillespie
- Department of Environmental Science, Policy, and Management, University of California, 130 Mulford Hall, #3114, Berkeley, CA 94720, USA
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9
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Wu J, Cortes KAF, Li C, Wang Y, Guo C, Momenzadeh K, Yeritsyan D, Hanna P, Lechtig A, Nazarian A, Lin SJ, Kaplan DL. Tuning the Biodegradation Rate of Silk Materials via Embedded Enzymes. ACS Biomater Sci Eng 2024; 10:2607-2615. [PMID: 38478959 DOI: 10.1021/acsbiomaterials.3c01758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Conventional thinking when designing biodegradable materials and devices is to tune the intrinsic properties and morphological features of the material to regulate their degradation rate, modulating traditional factors such as molecular weight and crystallinity. Since regenerated silk protein can be directly thermoplastically molded to generate robust dense silk plastic-like materials, this approach afforded a new tool to control silk degradation by enabling the mixing of a silk-degrading protease into bulk silk material prior to thermoplastic processing. Here we demonstrate the preparation of these silk-based devices with embedded silk-degrading protease to modulate the degradation based on the internal presence of the enzyme to support silk degradation, as opposed to the traditional surface degradation for silk materials. The degradability of these silk devices with and without embedded protease XIV was assessed both in vitro and in vivo. Ultimately, this new process approach provides direct control of the degradation lifetime of the devices, empowered through internal digestion via water-activated proteases entrained and stabilized during the thermoplastic process.
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Affiliation(s)
- Junqi Wu
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Kareen A Fajardo Cortes
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Chunmei Li
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Yushu Wang
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Chengchen Guo
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Kaveh Momenzadeh
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave., RN 115, Boston, Massachusetts 02215, United States
| | - Diana Yeritsyan
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave., RN 115, Boston, Massachusetts 02215, United States
| | - Philip Hanna
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave., RN 115, Boston, Massachusetts 02215, United States
| | - Aron Lechtig
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave., RN 115, Boston, Massachusetts 02215, United States
| | - Ara Nazarian
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave., RN 115, Boston, Massachusetts 02215, United States
| | - Samuel J Lin
- Divisions of Plastic Surgery and Otolaryngology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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10
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Hwang J, Im P, Kim MK, Kim J. Polydopamine-Coated Silk Fiber with Controllable Length for Enhanced Hemostatic Application. Biomacromolecules 2024; 25:2597-2606. [PMID: 38483111 DOI: 10.1021/acs.biomac.4c00125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
The development of highly effective hemostatic materials with high biocompatibility and outstanding performance is vital to the field of biomaterials. In this study, we develop a hemostatic fiber material that exhibits high biocompatibility and excellent performance. By incorporating polydopamine (PDA) into the alkaline treatment of silk fibroin (SF), we achieve PDA-coated SF fibers with lengths that can be controlled by the alkaline concentration. The PDA coating significantly enhances the hemostatic ability of the silk fibers and exhibits superior performance in both in vitro and ex vivo experiments. By performing animal studies involving a mouse liver puncture model and a femoral vein incision model, we demonstrate the remarkable hemostatic capability of the PDA-coated SF fibers, as evidenced by the lower blood loss compared to that of a commercial hemostat powder. These findings highlight the potential of applying a PDA-assisted alkaline treatment to SF fibers to efficiently create hemostatic fibers with controllable lengths, which would be promising candidates for clinical hemostatic applications.
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Affiliation(s)
- Junha Hwang
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Pilseon Im
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Min Kyung Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jaeyun Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Institute of Quantum Biophysics (IQB), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
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11
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Vaziri AS, Vasheghani-Farahani E, Hosseinzadeh S, Bagheri F, Büchner M, Schubert DW, Boccaccini AR. Genipin-Cross-Linked Silk Fibroin/Alginate Dialdehyde Hydrogel with Tunable Gelation Kinetics, Degradability, and Mechanical Properties: A Potential Candidate for Tissue Regeneration. Biomacromolecules 2024; 25:2323-2337. [PMID: 38437165 DOI: 10.1021/acs.biomac.3c01203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Genipin-cross-linked silk fibroin (SF) hydrogel is considered to be biocompatible and mechanically robust. However, its use remains a challenge for in situ forming applications due to its prolonged gelation process. In our attempt to facilitate the in situ fabrication of a genipin-mediated SF hydrogel, alginate dialdehyde (ADA) was utilized as a reinforcement template. Here, SF/ADA-based hydrogels with different compositions were synthesized covalently and ionically. Incorporating ADA into the SF hydrogel increased pore size (44.66-174.66 μm), porosity (61.59-80.40%), and the equilibrium swelling degree (7.60-30.17). Moreover, a wide range of storage modulus and compressive modulus were obtained by adjusting the proportions of SF and ADA networks within the hydrogel. The in vitro cell analysis using preosteoblast cells (MC3T3-E1) demonstrated the cytocompatibility of all hydrogels. Overall, the covalently and ionically cross-linked SF/ADA hydrogel represents a promising solution for in situ forming hydrogels for applications in tissue regeneration.
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Affiliation(s)
- Asma Sadat Vaziri
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Ebrahim Vasheghani-Farahani
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1968917313, Iran
| | - Fatemeh Bagheri
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
| | - Margitta Büchner
- Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Dirk W Schubert
- Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
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12
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Wang Y, Yang M, Wang J, Shuai Y, Xu Z, Wan Q, Zhong S, Mao C, Ping W, Yang M. Design of Bombyx mori (B. mori) Silk Fibroin Microspheres for Developing Biosafe Sunscreen. ACS Appl Mater Interfaces 2024; 16:15798-15808. [PMID: 38507684 DOI: 10.1021/acsami.3c17879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Sunscreens play a crucial role in protecting the skin from ultraviolet (UV) damage. However, present commercial sunscreens have a tendency to generate free radicals in the UV window, resulting in serious inflammatory responses and health problems. In this study, we demonstrate that silk fibroin microspheres (SFMPs) assembled from regenerated silk fibroin (SF) could scavenge free radicals while preventing UV irradiation and thus present a promising sunscreen. The SFMP reflected more UV light than SF and presented a higher stability than that of organic commercial sunscreens. In vitro analysis proved that SFMP could more efficiently scavenge the hydroxy radical and reduce the intracellular reactive oxygen than titanium dioxide (TiO2). In vivo experiments exhibited that SFMP provided stronger skin protection against UV irradiation than commercial sunscreens and TiO2. Furthermore, SFMP treatment significantly inhibited the skin inflammatory response. This work suggests that the SFMP has great potential to be developed into a biosafe sunscreen.
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Affiliation(s)
- Yecheng Wang
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
| | - Mei Yang
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
| | - Jie Wang
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
| | - Yajun Shuai
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
| | - Zongpu Xu
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
| | - Quan Wan
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
| | - Suting Zhong
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
| | - Chuanbin Mao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR 000000, China
| | - Weidong Ping
- Department of Plastic Surgery, Zhejiang Hospital, 12 Lingyin Road, Xihu District, Hangzhou 310013, China
| | - Mingying Yang
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, Zhejiang, P. R. China
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13
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Fan R, Zhao J, Yi L, Yuan J, McCarthy A, Li B, Yang G, John JV, Wan W, Zhang Y, Chen S. Anti-Inflammatory Peptide-Conjugated Silk Fibroin/Cryogel Hybrid Dual Fiber Scaffold with Hierarchical Structure Promotes Healing of Chronic Wounds. Adv Mater 2024; 36:e2307328. [PMID: 38288789 DOI: 10.1002/adma.202307328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/17/2023] [Indexed: 02/06/2024]
Abstract
Chronic wounds resulting from diabetes, pressure, radiation therapy, and other factors continue to pose significant challenges in wound healing. To address this, this study introduces a novel hybrid fibroin fibrous scaffold (FFS) comprising randomly arranged fibroin fibers and vertically aligned cryogel fibers (CFs). The fibroin scaffold is efficiently degummed at room temperature and simultaneously formed a porous structure. The aligned CFs are produced via directional freeze-drying, achieved by controlling solution concentration and freezing polymerization temperature. The incorporation of aligned CFs into the expanded fibroin fiber scaffold leads to enhanced cell infiltration both in vitro and in vivo, further elevating the hybrid scaffold's tissue compatibility. The anti-inflammatory peptide 1 (AP-1) is also conjugated to the hybrid fibrous scaffold, effectively transforming the inflammatory status of chronic wounds from pro-inflammatory to pro-reparative. Consequently, the FFS-AP1+CF group demonstrates superior granulation tissue formation, angiogenesis, collagen deposition, and re-epithelialization during the proliferative phase compared to the commercial product PELNAC. Moreover, the FFS-AP1+CF group displays epidermis thickness, number of regenerated hair follicles, and collagen density closer to normal skin tissue. These findings highlight the potential of random fibroin fibers/aligned CFs hybrid fibrous scaffold as a promising approach for skin tissue filling and tissue regeneration.
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Affiliation(s)
- Ruyi Fan
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of the Chinese Academy of Sciences, Wenzhou, Zhejiang, 325000, China
| | - Jiebing Zhao
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of the Chinese Academy of Sciences, Wenzhou, Zhejiang, 325000, China
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Lei Yi
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jiayi Yuan
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of the Chinese Academy of Sciences, Wenzhou, Zhejiang, 325000, China
| | - Alec McCarthy
- Department of Surgery-Transplant and Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Bo Li
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of the Chinese Academy of Sciences, Wenzhou, Zhejiang, 325000, China
| | - Ganghua Yang
- Department of Orthopaedic Surgery, the Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Johnson V John
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Wenbing Wan
- Department of Orthopaedic Surgery, the Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Yi Zhang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Shixuan Chen
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of the Chinese Academy of Sciences, Wenzhou, Zhejiang, 325000, China
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14
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Glomb C, Wilhelmi M, Strauß S, Zippusch S, Klingenberg M, Aper T, Vogt PM, Ruhparwar A, Helms F. Fabrication and biomechanical characterization of a spider silk reinforced fibrin-based vascular prosthesis. J Mech Behav Biomed Mater 2024; 152:106433. [PMID: 38316085 DOI: 10.1016/j.jmbbm.2024.106433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/15/2024] [Accepted: 01/25/2024] [Indexed: 02/07/2024]
Abstract
With fibrin-based vascular prostheses, vascular tissue engineering offers a promising approach for the fabrication of biologically active regenerative vascular grafts. As a potentially autologous biomaterial, fibrin exhibits excellent hemo- and biocompatibility. However, the major problem in the use of fibrin constructs in vascular tissue engineering, which has so far prevented their widespread clinical application, is the insufficient biomechanical stability of unprocessed fibrin matrices. In this proof-of-concept study, we investigated to what extent the addition of a spider silk network into the wall structure of fibrin-based vascular prostheses leads to an increase in biomechanical stability and an improvement in the biomimetic elastic behavior of the grafts. For the fabrication of hybrid prostheses composed of fibrin and spider silk, a statically cast tubular fibrin matrix was surrounded with an envelope layer of Trichonephila edulis silk using a custom built coiling machine. The fibrin matrix was then compacted and pressed into the spider silk network by transluminal balloon compression. This manufacturing process resulted in a hybrid prosthesis with a luminal diameter of 4 mm. Biomechanical characterization revealed a significant increase in biomechanical stability of spider silk reinforced grafts compared to exclusively compacted fibrin segments with a mean burst pressure of 362 ± 74 mmHg vs. 213 ± 14 mmHg (p < 0.05). Dynamic elastic behavior of the spider silk reinforced grafts was similar to native arteries. In addition, the coiling with spider silk allowed a significant increase in suture retention strength and resistance to external compression without compromising the endothelialization capacity of the grafts. Thus, spider silk reinforcement using the abluminal coiling technique represents an efficient and reproducible technique to optimize the biomechanical behavior of small-diameter fibrin-based vascular grafts.
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Affiliation(s)
- Clara Glomb
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625, Hannover, Germany
| | - Mathias Wilhelmi
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625, Hannover, Germany; Department of Vascular- and Endovascular Surgery, St. Bernward Hospital, Hildesheim, Germany
| | - Sarah Strauß
- Department of Plastic, Hand and Reconstructive Surgery, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany
| | - Sarah Zippusch
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625, Hannover, Germany; Division for Cardiothoracic-, Transplantation- and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Melanie Klingenberg
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625, Hannover, Germany; Division for Cardiothoracic-, Transplantation- and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Thomas Aper
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625, Hannover, Germany; Division for Cardiothoracic-, Transplantation- and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Peter M Vogt
- Department of Plastic, Hand and Reconstructive Surgery, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany
| | - Arjang Ruhparwar
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625, Hannover, Germany; Division for Cardiothoracic-, Transplantation- and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Florian Helms
- Lower Saxony Centre for Biomedical Engineering, Implant Research and Development (NIFE), Hannover Medical School, Stadtfelddamm 34, 30625, Hannover, Germany; Division for Cardiothoracic-, Transplantation- and Vascular Surgery, Hannover Medical School, Hannover, Germany.
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15
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Yameen M, Adeel S, Salman M, Haji A, Asghar F, Mia R, Imran M. Sustainable appraisal of lipstick tree seeds ( Bixa orellana)-based bixin natural orange colorant for green mordanted silk fabrics and wool yarns. Sci Prog 2024; 107:368504241242282. [PMID: 38614468 PMCID: PMC11024587 DOI: 10.1177/00368504241242282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2024]
Abstract
This research aims to optimize the silk and wool dyeing process using natural dyes from Bixa orellana (annatto) through response surface methodology. Central composite design experiments highlight the significant enhancement of color outcomes achieved through microwave treatment. For silk, the optimal conditions (80 °C for 40 min) with annatto extract yield a color strength (K/S) of 17.8588, while wool achieves a K/S of 7.5329. Introducing eco-friendly bio-mordants, such as pomegranate peel and red sumac tannins, enhances color strength. Pre-dyeing treatments with 2% red sumac, 1.5% pomegranate peel, and weld flower extracts for silk produce high color strength, with K/S values of 16.4063, 16.3784, and 12.1658, respectively. Post-dyeing, the K/S values increase to 40.1178, 17.4779, and 21.6494. Wool yarn exhibits similar improvements, with pre-dyeing K/S values of 13.1353, 13.5060, and 16.3232, escalating to 10.5892, 15.3141, and 23.4850 post-dyeing. Furthermore, this research underscores improved colorfastness properties, including notable enhancements in light, wash, and rubbing fastness for both silk fabric and wool yarn. These findings underscore the efficacy of the proposed sustainable dyeing methods, offering valuable insights for eco-friendly textile production.
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Affiliation(s)
- Muhammad Yameen
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Shahid Adeel
- Department of Applied Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Mahwish Salman
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Aminoddin Haji
- Department of Textile Engineering, Yazd University, Yazd, Iran
| | - Fariha Asghar
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Rony Mia
- Department of Textile Engineering, National Institute of Textile Engineering and Research, University of Dhaka, Dhaka, Bangladesh
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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16
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Kim JY, Kwon D, Jung S, Tsang YF, Kwon EE. Thermochemical conversion of silkworm by-product into syngas. Int J Biol Macromol 2024; 265:130956. [PMID: 38499118 DOI: 10.1016/j.ijbiomac.2024.130956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/03/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
This study explored the valorisation of silkworm by-product, a major by-product of the silk industry (sericulture), which amounts to 16 million tonnes annually. The focus was on transforming waste into energy resources through pyrolysis under CO2 conditions. In one-stage pyrolysis, the evolution of syngas under N2 was found to be comparable to that under CO2. A notable allocation of carbon to biocrude rather than syngas was observed. The two-stage pyrolysis resulted in increased syngas production. However, achieving a homogeneous reaction between CO2 and the volatiles liberated from silkworm byproduct proved challenging. Indeed, the reaction kinetics governing CO2 reactivity was not fast although the temperature windows of the reaction were aligned in the two-stage pyrolysis. To address this issue, pyrolysis was performed using a Ni-based catalyst to expedite the reaction kinetics. Consequently, syngas formation, particularly CO formation, was significantly enhanced under CO2 conditions compared to that under N2 conditions. The syngas yield under CO2 was 36.42 wt% which was 2-fold higher than that of N2. This suggested the potential of CO2 altering the carbon distribution from biocrude to syngas. This strategy would contribute to the establishment of sustainable production of silk by converting sericulture by-product into energy/chemical resources.
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Affiliation(s)
- Jee Young Kim
- Department of Earth Resources & Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Dohee Kwon
- Department of Earth Resources & Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Sungyup Jung
- Department of Environmental Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies and State Key Laboratory in Marine Pollution, The Education University of Hong Kong, Tai Po, New Territories 999077, Hong Kong
| | - Eilhann E Kwon
- Department of Earth Resources & Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
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17
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Ghosh D, Yaron JR, Abedin MR, Godeshala S, Kumar S, Kilbourne J, Berthiaume F, Rege K. Bioactive nanomaterials kickstart early repair processes and potentiate temporally modulated healing of healthy and diabetic wounds. Biomaterials 2024; 306:122496. [PMID: 38373363 DOI: 10.1016/j.biomaterials.2024.122496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/15/2024] [Accepted: 01/30/2024] [Indexed: 02/21/2024]
Abstract
Slow-healing and chronic wounds represent a major global economic and medical burden, and there is significant unmet need for novel therapies which act to both accelerate wound closure and enhance biomechanical recovery of the skin. Here, we report a new approach in which bioactives that augment early stages of wound healing can kickstart and engender effective wound closure in healthy and diabetic, obese animals, and set the stage for subsequent tissue repair processes. We demonstrate that a nanomaterial dressing made of silk fibroin and gold nanorods (GNR) stimulates a pro-neutrophilic, innate immune, and controlled inflammatory wound transcriptomic response. Further, Silk-GNR, lasered into the wound bed, in combination with exogeneous histamine, accelerates early-stage processes in tissue repair leading to effective wound closure. Silk-GNR and histamine enhanced biomechanical recovery of skin, increased transient neoangiogenesis, myofibroblast activation, epithelial-to-mesenchymal transition (EMT) of keratinocytes and a pro-resolving neutrophilic immune response, which are hitherto unknown activities for these bioactives. Predictive and temporally coordinated delivery of growth factor nanoparticles that modulate later stages of tissue repair further accelerated wound closure in healthy and diabetic, obese animals. Our approach of kickstarting healing by delivering the "right bioactive at the right time" stimulates a multifactorial, pro-reparative response by augmenting endogenous healing and immunoregulatory mechanisms and highlights new targets to promote tissue repair.
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Affiliation(s)
- Deepanjan Ghosh
- Biological Design Graduate Program, Arizona State University, Tempe, AZ 85287, USA
| | - Jordan R Yaron
- Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Muhammad Raisul Abedin
- Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Sudhakar Godeshala
- Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Suneel Kumar
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Jacquelyn Kilbourne
- Department of Animal Care and Technologies, Arizona State University, Tempe, AZ 85287, USA
| | - Francois Berthiaume
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Kaushal Rege
- Biological Design Graduate Program, Arizona State University, Tempe, AZ 85287, USA; Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA.
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18
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Pilley S, Kularkar A, Hippargi G, Dhargave L, Shende N, Krupadam RJ, Rayalu S. Powdered silk: A promising biopolymer for the treatment of dye contaminated water. Chemosphere 2024; 352:141213. [PMID: 38336040 DOI: 10.1016/j.chemosphere.2024.141213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/13/2023] [Accepted: 01/12/2024] [Indexed: 02/12/2024]
Abstract
Discharge of textile dye effluents into water bodies is creating stress to aquatic life and contaminating water resources. In this study, a new biopolymer adsorbent silk fibroin (SF) was prepared from Bombyx mori silk fibroin (SF) and used for removal of Solochrome Black-T (SB-T) from water. This innovative adsorbent exhibits an exceptional adsorption capacity of 20.08 mg/g, achieving a removal efficiency of approximately 98.6 % within 60 min. Notably, the powdered SF adsorbent demonstrates rapid kinetics, surpassing the performance of previously reported similar adsorbents in adsorption capacity and reaction speed. The molecular weight and particle diameter of the material were observed to be > 1.243 kDa and 3 μm, respectively. The experimental investigations were performed on different parameters, viz., adsorbent dosage, contact time, repeatability, and desorption-adsorption study. The experimental data well fit for the Langmuir model (R2 = 0.937, qmax = 20.08 mg/g) and the pseudo-second-order kinetics (R2 = 0.921 and qe = 1.496 mg/g). Compared to the adsorbents reported in the literature, the newly prepared SF showed high adsorption capacity and faster kinetics to address real-life situations. The novelty of this work extends beyond its remarkable adsorption capabilities. The SF adsorbent offers a cost-effective, sustainable solution and regenerable adsorption material with minimal negative environmental impacts. This regenerability, with its versatility and broad applicability, positions powdered SF fibroin as a transformative technology in water treatment and environmental protection.
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Affiliation(s)
- Sonali Pilley
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
| | - Ankush Kularkar
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Girivyankatesh Hippargi
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India.
| | - Layashree Dhargave
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
| | - Nandini Shende
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Reddithota J Krupadam
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
| | - Sadhana Rayalu
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
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Deptuch T, Kucharczyk K, Florczak A, Dams-Kozlowska H. Endotoxin reduction from biotech silk material inhibits the production of anti-silk antibodies in mice. J Biomed Mater Res A 2024; 112:463-472. [PMID: 37941467 DOI: 10.1002/jbm.a.37644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/10/2023] [Accepted: 10/25/2023] [Indexed: 11/10/2023]
Abstract
Eliminating endotoxins is a common problem in the development of biotechnologically produced pharmaceuticals or biomaterials. Residual endotoxins in the final sample may hamper the properties of the product or induce severe adverse effects. Developing an effective downstream purification protocol that ensures a lack of minimal endotoxin content in the final product can be a challenging task. In our previous studies, we developed nanospheres produced from bioengineered silks. Despite their good overall biocompatibility, in vivo characterization of spheres showed mild activation of the immune system (mainly in terms of anti-silk antibody production). Herein, we examined, if the endotoxins delivered with the silk spheres might have contributed to activating the adaptive immune response. We investigated various commercially available methods for endotoxin removal that can be applied as an extra step in downstream endotoxin removal from MS1-type silk proteins. We selected a method that allowed for a 10-fold reduction of endotoxin content in soluble silk and 2-fold in the final product (silk spheres). The reduced level of endotoxins improved the biocompatibility of the silk spheres as these particles induced negligible titers of anti-silk antibodies in an in vivo immune study. Since endotoxins can enhance life-threatening immune responses, it is crucial to optimize the method of their removal before clinical use not only of silk-based products but also of other biomolecules produced biotechnologically.
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Affiliation(s)
- Tomasz Deptuch
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan, Poland
| | - Kamil Kucharczyk
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan, Poland
| | - Anna Florczak
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan, Poland
| | - Hanna Dams-Kozlowska
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan, Poland
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20
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Chiba Y, Miyajima M, Takahashi Y, Shindo Y, Tsuruta K, Maki R, Watanabe A. Comparison of imaging changes in pulmonary artery diameter at the occlusion site using silk or metal clamps for pulmonary artery troubles. Eur J Cardiothorac Surg 2024; 65:ezae034. [PMID: 38336995 PMCID: PMC11024802 DOI: 10.1093/ejcts/ezae034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 01/05/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024] Open
Abstract
OBJECTIVES We analysed our clinical experience using silk sutures [the double-loop technique (DLT)] or DeBakey type vascular clamp (DeBakey clamp) for pulmonary artery (PA) troubles during anatomical lung resection to validate its practicality and safety. METHODS We retrospectively reviewed the records of patients who underwent either of the above clamping techniques during anatomical lung resection at our hospital between April 2007 and August 2022. We measured the PA diameter at the occlusion site on computed tomography images acquired within 1 year pre- and postoperatively. The difference between pre- and postoperative diameters of the occlusion sites was calculated as the change in the PA diameter. We zoned the occlusion site of the PA to adjust for variation. PA deformation was evaluated as an adverse event caused by clamping. RESULTS Ultimately, 27 and 26 patients who underwent the DLT and DeBakey clamp, respectively, were included. No additional injury due to the clamp procedure was found in either group. For zone R1/L1, defined as the main PA, the median changes in the PA diameter were 0.02 (-0.7 to 0.27) mm for the DLT and 0.36 (-0.28 to 0.89) mm for the DeBakey clamp. No significant differences were observed between the 2 groups (P = 0.106). Furthermore, no aneurysms, dissections, or stenoses were found in either group. CONCLUSIONS The DLT and DeBakey clamp had only minimal effects on the occlusion site of the PA. The DLT is a practical thoracoscopic technique for PA bleeding when primary haemostasis has been achieved.
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Affiliation(s)
- Yoshiki Chiba
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, Japan
| | - Masahiro Miyajima
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, Japan
| | - Yuki Takahashi
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, Japan
| | - Yuma Shindo
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, Japan
| | - Kodai Tsuruta
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, Japan
| | - Ryunosuke Maki
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, Japan
| | - Atsushi Watanabe
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, Japan
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21
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Navamajiti N, Gardner A, Cao R, Sugimoto Y, Yang JW, Lopes A, Phan NV, Collins J, Hua T, Damrongsakkul S, Kanokpanont S, Steiger C, Reker D, Langer R, Traverso G. Silk Fibroin-Based Coatings for Pancreatin-Dependent Drug Delivery. J Pharm Sci 2024; 113:718-724. [PMID: 37690778 PMCID: PMC10924069 DOI: 10.1016/j.xphs.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 09/04/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
Triggerable coatings, such as pH-responsive polymethacrylate copolymers, can be used to protect the active pharmaceutical ingredients contained within oral solid dosage forms from the acidic gastric environment and to facilitate drug delivery directly to the intestine. However, gastrointestinal pH can be highly variable, which can reduce delivery efficiency when using pH-responsive drug delivery technologies. We hypothesized that biomaterials susceptible to proteolysis could be used in combination with other triggerable polymers to develop novel enteric coatings. Bioinformatic analysis suggested that silk fibroin is selectively degradable by enzymes in the small intestine, including chymotrypsin, but resilient to gastric pepsin. Based on the analysis, we developed a silk fibroin-polymethacrylate copolymer coating for oral dosage forms. In vitro and in vivo studies demonstrated that capsules coated with this novel silk fibroin formulation enable pancreatin-dependent drug release. We believe that this novel formulation and extensions thereof have the potential to produce more effective and personalized oral drug delivery systems for vulnerable populations including patients that have impaired and highly variable intestinal physiology.
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Affiliation(s)
- Natsuda Navamajiti
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Apolonia Gardner
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ruonan Cao
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Division of Engineering Science, University of Toronto, Toronto, ON M5S 2E4, Canada
| | - Yutaro Sugimoto
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Materials Engineering, Faculty of Engineering, The University of Tokyo, Tokyo, 113-0032, Japan
| | - Jee Won Yang
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91105, USA
| | - Aaron Lopes
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Nhi V Phan
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Joy Collins
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Tiffany Hua
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Siriporn Damrongsakkul
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Biomaterial Engineering in Medical and Health, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sorada Kanokpanont
- Biomedical Engineering Research Center, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Biomaterial Engineering in Medical and Health, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Christoph Steiger
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Daniel Reker
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Robert Langer
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Giovanni Traverso
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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22
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Rexlin PEJ, Cecil A, Eswaramoorthy R, John RS. CHARACTERISATION OF RESORBABLE AND NON- RESORBABLE SUTURES COATED WITH Punica granatum SEED EXTRACT: AN in vitro PILOT STUDY. J Evid Based Dent Pract 2024; 24:101952. [PMID: 38448126 DOI: 10.1016/j.jebdp.2023.101952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/28/2023] [Accepted: 11/05/2023] [Indexed: 03/08/2024]
Abstract
BACKGROUND In order to achieve uneventful and rapid healing of the tissues, a suture material should be biocompatible, easy to handle, sterile, and have good and uniform tensile strength. Hence, in the present study, characterization of the suture materials was done through a novel green chemistry approach using Punica granatum seed extract. MATERIALS AND METHODS Ethanolic extract of P. granatum seed was prepared by dissolving 25 g of P. granatum seed powder with 100 mL of ethanol. The obtained extract was coated in silk and Vicryl suture material and was tested for its surface morphology (SEM), tensile strength, anti-microbial activity, biocompatibility, and wound healing potential. RESULTS Silk and Vicryl sutures coated with P. granatum seed extract showed the uniform coating and deposition of extract with sustaining integrity. Vicryl suture coated with the extract had good tensile strength and antimicrobial activity. The in vitro scratch assay and biocompatibility test showed that the P. granatum seed extract had excellent wound healing potential and can be used without any effect on the viability of the normal cells. CONCLUSION Within the limitations of the study it can be concluded that P. granatum seed extract coated Vicryl sutures had good tensile strength and anti-microbial activity. P. granatum seed extract also showed excellent biocompatibility and wound healing potential.
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Affiliation(s)
- P E Jai Rexlin
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Anju Cecil
- Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
| | - Rajalakshmanan Eswaramoorthy
- Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Rubin S John
- Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
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23
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Zhu Y, Li Y, Li X, Chen T, Zhao H, Zhou H. Activities of polysaccharide fractions from corn silk: Hemostatic, immune, and anti-lung cancer potentials. Int J Biol Macromol 2024; 262:130156. [PMID: 38367774 DOI: 10.1016/j.ijbiomac.2024.130156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/27/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024]
Abstract
Corn silk is the stigma and style of corn and is rich in polysaccharides. Despite the extensive research on its polysaccharides, the hemostatic characteristics of effective parts and the related activities remain insufficiently explored. Corn silk polysaccharide (CSP) was extracted with hot water and purified using a diethylaminoethyl cellulose membrane. Then, it was separated with sephadex G-150 to obtain five fractions. These fractions were investigated for their potential in hemostasis, antioxidant, immune response, and anti-lung cancer activities. CSP-2, CSP-3, and CSP-4 significantly affected the coagulation indicators activated partial thromboplastin time (APTT) and thrombin time (TT) at 125-500 μg/mL. Corn silk flavonoids and saponins at 32.25 μg/mL significantly prolonged APTT, TT, and prothrombin time (PT). CSP-2, with potent antioxidant ability, approaches Vitamin C. At 25 μg/mL, CSPs nearly reached the phagocytosis of neutral red of lipopolysaccharides. The five fractions promoted the proliferation of RAW264.7 cells at 25-800 μg/mL and stimulated NO secretion at 25-100 μg/mL. CSP-2 also showed an 86 % inhibition rate effect on A549 at 200 μg/mL. These results indicate that CSP not only has hemostatic effects but also has immune and anti-lung cancer activities. Thus, it is a potential candidate compound with immune activity for managing bleeding in cancer.
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Affiliation(s)
- Yunwen Zhu
- School of Chemistry and Pharmaceutical, Engineering Jilin Institute of Chemical Technology Jilin, PR China
| | - Yaping Li
- School of Chemistry and Pharmaceutical, Engineering Jilin Institute of Chemical Technology Jilin, PR China
| | - Xue Li
- School of Chemistry and Pharmaceutical, Engineering Jilin Institute of Chemical Technology Jilin, PR China
| | - Tongfei Chen
- School of Chemistry and Pharmaceutical, Engineering Jilin Institute of Chemical Technology Jilin, PR China
| | - Hepeng Zhao
- School of Chemistry and Pharmaceutical, Engineering Jilin Institute of Chemical Technology Jilin, PR China.
| | - Hongli Zhou
- School of Chemistry and Pharmaceutical, Engineering Jilin Institute of Chemical Technology Jilin, PR China.
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24
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Qu J, Xia Z, Liu Y, Li M, Xie Y. Targeting Antheraea pernyi silk fibroin modified dual-gene coexpressing vector enhances gene transport and promotes lung tumor suppression. Int J Biol Macromol 2024; 262:130074. [PMID: 38342259 DOI: 10.1016/j.ijbiomac.2024.130074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/13/2024]
Abstract
Poor systemic administration capability, a natural tendency to target CAR-positive cells, nonspecific shedding to normal organs, and poor viral persistence in tumor tissues are major hindrances to the therapeutic benefit of adenovirus (Ad) gene vectors in the clinical setting. Antheraea pernyi silk fibroin (ASF) grafted with targeted peptides was used to coat ING4-IL-24 dual-gene coexpressing adenovirus for targeted gene therapy of lung carcinoma. The dual-gene vector with a diameter of 390 nm could target and infect H460 lung tumor cells, internalize into cells, express the ING4 and IL-24 genes at a high level, effectively inhibit the proliferation of lung tumor cells, and induce their apoptosis. The in vivo treatment of H460 human lung carcinoma xenograft tumors showed that the dual-gene coexpressing vector suppressed the proliferation of lung tumor cells by downregulating the expression of Ki67 and Bcl-2, promoted apoptosis by upregulating the expression of C Caspase-3 and Bax, and blocked tumor angiogenesis by downregulating the expression of VEGF and CD31, thus exerting a multichannel tumor inhibition effect. Surface modification of Ad with targeted cationic silk fibroin is an effective way to solve the natural tendencies and in vivo instability of adenovirus vectors, and such vectors have potential for clinical application.
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Affiliation(s)
- Jing Qu
- School of Textile Garment and Design, Changshu Institute of Technology, Suzhou 215500, China; National Engineering Laboratory for Modern Silk, Key Laboratory of Textile Industry for Silk Products in Medical and Health Use, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Zhenran Xia
- School of Textile Garment and Design, Changshu Institute of Technology, Suzhou 215500, China
| | - Yu Liu
- National Engineering Laboratory for Modern Silk, Key Laboratory of Textile Industry for Silk Products in Medical and Health Use, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, Key Laboratory of Textile Industry for Silk Products in Medical and Health Use, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Yufeng Xie
- Department of Thoracic Surgery, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Sun X, Huang D, Li G, Sun J, Zhang Y, Hu B, Xie M, Zhao M, Zhang X, Yu J, Li G. Artificial heart valve reinforced with silk woven fabric and poly (ethylene glycol) diacrylate hydrogels composite. Int J Biol Macromol 2024; 260:129485. [PMID: 38237838 DOI: 10.1016/j.ijbiomac.2024.129485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/30/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024]
Abstract
The present study describes the preparation of woven silk fabric (WSF) and poly(ethylene glycol) diacrylate (PEGDA) hydrogel composite reinforced artificial heart valve (SPAHV). Interestingly, the longitudinal and latitudinal elastic modulus of the SPAHV composite can achieve at 54.08 ± 3.29 MPa and 23.96 ± 2.18 MPa, respectively, while its volume/mass swelling ratio and water permeability was 1.9 %/2.8 % and 3 mL/(cm2∙min), respectively, revealing remarkable anisotropic mechanical properties, low water swelling property and water permeability. The in vitro & in vivo biocompatibility and anti-calcification ability of SPAHV were further examined using L929 mouse fibroblasts and Sprague Dawley (SD) male rat model under 8 weeks of subcutaneous implantation. The expression of pro-inflammatory cytokine TNF-α and anti-inflammatory cytokine IL-10 was determined by immunohistochemical staining, as well as the H&E staining and alizarin red staining were accessed. The results showed that the composites possess better biocompatibility, resistance to degradation and anti-calcification ability compared to the control group (p < 0.05). Thus, the SPAHV composite with robust mechanical properties and biocompatibility has potential application for artificial heart valves.
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Affiliation(s)
- Xuan Sun
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Di Huang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Guanqiang Li
- Dapartment of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China
| | - Jing Sun
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Yaoyu Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Bo Hu
- Dapartment of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China
| | - Maobin Xie
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 511436, China
| | - Mengdi Zhao
- Department of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
| | - Xicheng Zhang
- Dapartment of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China.
| | - Jia Yu
- School of Physical Education, Department of Orthopedics, Orthopedic Institute, The First Affiliated Hospital of Soochow University, Suzhou 215021, China.
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
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Asakura T, Shimokawatoko H, Nakazawa Y. Characterization and promotion of endothelialization of Bombyx mori silk fibroin functionalized with REDV peptide. Int J Biol Macromol 2024; 261:129746. [PMID: 38302025 DOI: 10.1016/j.ijbiomac.2024.129746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
In the development of small-diameter vascular grafts, it is crucial to achieve early-stage endothelialization to prevent thrombus formation and intimal hyperplasia. Silk fibroin (SF) from Bombyx mori is commonly used for such grafts. However, there is a need to expedite endothelialization post-implantation. In this study, we functionalized SF with Arg-Glu-Asp-Val (REDV) (SF + REDV) using cyanuric chloride to enhance endothelialization. The immobilization of REDV onto SF was confirmed and the amount of immobilized REDV could be calculated by 1H NMR. Furthermore, the conformational changes in Tyr, Ser, and Ala residues in [3-13C]Tyr- and [3-13C]Ser-SF due to REDV immobilization were monitored using 13C solid-state NMR. The REDV immobilized onto the SF film was found to be exposed on the film's surface, as confirmed by biotin-avidin system. Cell culture experiments, including adhesiveness, proliferation, and extensibility, were conducted using normal human umbilical vein endothelial cells (HUVEC) and normal human aortic smooth muscle cells (HAoSMC) on both SF and SF + REDV films to evaluate the impact of REDV on endothelialization. The results indicated a trend towards promoting HUVEC proliferation while inhibiting HAoSMC proliferation. Therefore, these findings suggest that SF + REDV may be more suitable than SF alone for coating small-diameter SF knitted tubes made of SF threads.
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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.
| | - Haruka Shimokawatoko
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Yasumoto Nakazawa
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
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27
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Mahardawi B, Jiaranuchart S, Rochanavibhata S, Siriwat K, Mattheos N, Pimkhaokham A. Cyanoacrylate tissue adhesive versus silk sutures for mandibular third molar surgery: a systematic review and meta-analysis. Clin Oral Investig 2024; 28:180. [PMID: 38418796 DOI: 10.1007/s00784-024-05578-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVE Cyanoacrylate tissue adhesive has been presented as an alternative to sutures and several studies have compared them. The objective of this meta-analysis was to evaluate the effect of cyanoacrylate tissue adhesive on postoperative pain and swelling, following mandibular third molar surgery. MATERIALS AND METHODS Database search was conducted in MEDLINE/PubMed and Scopus, along with extensive search in the grey literature, including randomized and non-randomized clinical trials that applied cyanoacrylate adhesive for closing mandibular third molar surgical sites and compared it with silk sutures, assessing postoperative pain and swelling. The search ended on September 22, 2023. RESULTS Of 886 identified articles, six were included and meta-analyzed. Applying cyanoacrylate demonstrated a reduction in the overall postoperative pain (SMD = -0.57, 95% CI -1.00 to -0.15, p = 0.009). A similar outcome was noted when pain was evaluated on the first and last postoperative days, based on controlled clinical trials (SMD = -0.47, 95% CI -0.92 to -0.03, p = 0.04), and randomized trials (SMD = -0.97, 95% CI -1.31 to -0.62, p < 0.00001). Patients/sides received cyanoacrylate showed a decrease in postoperative swelling (SMD = -0.26, 95% CI -0.51 to -0.01, p = 0.04). Following the GRADE rating system, the quality of evidence on pain and swelling was judged as moderate and low, respectively. CONCLUSIONS The use of cyanoacrylate adhesive may offer benefit in reducing postoperative pain and swelling following mandibular third molar surgery. Nevertheless, this should be further investigated, considering the low number of included reports. CLINICAL RELEVANCE The current results could help clinicians who perform this procedure to manage postoperative pain and swelling more effectively.
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Affiliation(s)
- Basel Mahardawi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road, Wangmai, Patumwan, Bangkok, 10330, Thailand
| | - Sirimanas Jiaranuchart
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road, Wangmai, Patumwan, Bangkok, 10330, Thailand
| | - Sunisa Rochanavibhata
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road, Wangmai, Patumwan, Bangkok, 10330, Thailand
| | - Kiti Siriwat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road, Wangmai, Patumwan, Bangkok, 10330, Thailand
| | - Nikos Mattheos
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road, Wangmai, Patumwan, Bangkok, 10330, Thailand
- Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Atiphan Pimkhaokham
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road, Wangmai, Patumwan, Bangkok, 10330, Thailand.
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28
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Cheng W, Yang H, Xiao L, Yang G, Lu Q, Kaplan DL. Nanosized Silk-Magnesium Complexes for Promotion of Angiogenic and Osteogenic Activities. ACS Appl Mater Interfaces 2024; 16:9880-9889. [PMID: 38359078 DOI: 10.1021/acsami.3c18195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Injectable hydrogels with osteogenic and angiogenetic properties are of interest in bone tissue engineering. Since the bioactivity of ions is concentration-dependent, nanosized silk-magnesium (Mg) complexes were previously developed and assembled into hydrogels with angiogenic capabilities but failed to control both osteogenic and angiogenetic activities effectively. Here, nanosized silk particles with different sizes were obtained by using ultrasonic treatment to control silk-Mg coordination and particle formation, resulting in silk-Mg hydrogels with different types of bioactivity. Fourier transform infrared and X-ray diffraction results revealed that different coordination intensities were present in the different complexes as a basis for the differences in activities. Slow Mg ion release was controlled by these nanosized silk-Mg complexes through degradation. With the same amount of Mg ions, the different silk-Mg complexes exhibited different angiogenic and osteogenic capacities. Complexes with both angiogenic and osteogenic capacities were developed by optimizing the sizes of the silk particles, resulting in faster and improved quality of bone formed in vivo than complexes with the same composition of silk and Mg but only angiogenic or osteogenic capacities. The biological selectivity of silk-Mg complexes should facilitate applications in tissue regeneration.
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Affiliation(s)
- Weinan Cheng
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai 200233, People's Republic of China
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People's Republic of China
| | - Huaxiang Yang
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People's Republic of China
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People's Republic of China
| | - Liying Xiao
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People's Republic of China
| | - Gongwen Yang
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People's Republic of China
| | - Qiang Lu
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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Deng Y, Zhang C, Lv L, Wang K, Liu F, Zhou Y, Peng Z, Wang B. In situ detection of silk fibroin using a dual recognition strategy with a flexible pressure immunosensor. Anal Methods 2024; 16:1185-1195. [PMID: 38305686 DOI: 10.1039/d3ay01967e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Silk is a symbol of ancient Chinese civilization that has made an indelible contribution to the development of world civilization. However, because ancient artifacts are often contaminated or degraded, it is difficult to detect the presence of silk therein, and the true origin of silk thus remains a mystery. Therefore, this work presents a flexible pressure immunosensor that was designed based on 3D polypyrrole (PPy) foams for the trace detection of silk fibroin at archaeological sites. Initially, silk fibroin (SF) was conjugated with antibody-functionalized copper oxide nanoparticles (CuO NPs) and carboxylated magnetic beads (MBs) to form a sandwich immune complex. Then, the sandwich immune complex was added to hydrogen peroxide (H2O2) by magnetic separation to catalyse the generation of oxygen (O2), which converted the antigen-antibody specific recognition signal to gas pressure. As the pressure within the device increases, the 3D PPy foam, as the sensing layer resistance was 150 Ω, undergoes extrusion and deformation. This deformation leads to alterations in the foam resistance. The flexible pressure immunosensor can sensitively monitor the change in electrical resistance in the system and quantitatively detect silk fibroin. With optimization, the flexible pressure immunosensor demonstrates a dynamic range of operation spanning from 10 ng mL-1 to 100 μg mL-1, exhibiting a remarkable detection limit of 10.58 ng mL-1 specifically for silk fibroin. Notably, this immunosensor surpasses enzyme-linked immunosorbent assay (ELISA) in terms of superior reproducibility, specificity, and accuracy. Therefore, this application provides a new method and technical support for silk detection.
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Affiliation(s)
- Yefeng Deng
- School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Chao Zhang
- School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Lianpeng Lv
- School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Kun Wang
- School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Feng Liu
- School of Materials Science & Engineering, 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
| | - Zhiqin Peng
- School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Bing Wang
- School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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30
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Yaron JR, Bakkaloglu S, Grigaitis NA, Babur FH, Macko S, Rhodes S, Norvor-Davis S, Rege K. Inflammasome modulation with P2X7 inhibitor A438079-loaded dressings for diabetic wound healing. Front Immunol 2024; 15:1340405. [PMID: 38426101 PMCID: PMC10901979 DOI: 10.3389/fimmu.2024.1340405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
The inflammasome is a multiprotein complex critical for the innate immune response to injury. Inflammasome activation initiates healthy wound healing, but comorbidities with poor healing, including diabetes, exhibit pathologic, sustained activation with delayed resolution that prevents healing progression. In prior work, we reported the allosteric P2X7 antagonist A438079 inhibits extracellular ATP-evoked NLRP3 signaling by preventing ion flux, mitochondrial reactive oxygen species generation, NLRP3 assembly, mature IL-1β release, and pyroptosis. However, the short half-life in vivo limits clinical translation of this promising molecule. Here, we develop a controlled release scaffold to deliver A438079 as an inflammasome-modulating wound dressing for applications in poorly healing wounds. We fabricated and characterized tunable thickness, long-lasting silk fibroin dressings and evaluated A438079 loading and release kinetics. We characterized A438079-loaded silk dressings in vitro by measuring IL-1β release and inflammasome assembly by perinuclear ASC speck formation. We further evaluated the performance of A438079-loaded silk dressings in a full-thickness model of wound healing in genetically diabetic mice and observed acceleration of wound closure by 10 days post-wounding with reduced levels of IL-1β at the wound edge. This work provides a proof-of-principle for translating pharmacologic inhibition of ATP-induced inflammation in diabetic wounds and represents a novel approach to therapeutically targeting a dysregulated mechanism in diabetic wound impairment.
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Affiliation(s)
- Jordan R. Yaron
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
- School for Engineering of Matter, Transport & Energy, Arizona State University, Tempe, AZ, United States
| | - Selin Bakkaloglu
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Nicole A. Grigaitis
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
- Biological Design Graduate Program, Arizona State University, Tempe, AZ, United States
| | - Farhan H. Babur
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Sophia Macko
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Samantha Rhodes
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Solenne Norvor-Davis
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Kaushal Rege
- Center for Biomaterials Innovation and Translation, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
- School for Engineering of Matter, Transport & Energy, Arizona State University, Tempe, AZ, United States
- Biological Design Graduate Program, Arizona State University, Tempe, AZ, United States
- Chemical Engineering, Arizona State University, Tempe, AZ, United States
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Yu HC, Hsieh KL, Hirai T, Li MC. Dynamics of Nanocomposite Hydrogel Alignment during 3D Printing to Develop Tissue Engineering Technology. Biomacromolecules 2024; 25:605-613. [PMID: 37844272 DOI: 10.1021/acs.biomac.3c00522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Taking inspiration from spider silk protein spinning, we developed a method to produce tough filaments using extrusion-based 3D bioprinting and salting-out of the protein. To enhance both stiffness and ductility, we have designed a blend of partially crystalline, thermally sensitive natural polymer gelatin and viscoelastic G-polymer networks, mimicking the components of spider silk. Additionally, we have incorporated inorganic nanoparticles as a rheological modifier to fine-tune the 3D printing properties. This self-healing nanocomposite hydrogel exhibits exceptional mechanical properties, biocompatibility, shear thinning behavior, and a well-controlled gelation mechanism for 3D printing.
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Affiliation(s)
- Hao-Cheng Yu
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Kun-Liang Hsieh
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Tomoyasu Hirai
- Department of Applied Chemistry, Osaka Institute of Technology, Osaka 535-8585, Japan
| | - Ming-Chia Li
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Center For Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
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32
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Jiao Y, Yang X, Li Y, Wang F, Wang L, Li C. Spider- Silk-like Fiber Mat-Covered Polypropylene Warp-Knitted Hernia Mesh for Inhibition of Fibrosis under Dynamic Environment. Biomacromolecules 2024; 25:1214-1227. [PMID: 38295271 DOI: 10.1021/acs.biomac.3c01181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Hernia surgery is a widely performed procedure, and the use of a polypropylene mesh is considered the standard approach. However, the mesh often leads to complications, including the development of scar tissue that wraps around the mesh and causes it to shrink. Consequently, there is a need to investigate the relationship between the mesh and scar formation as well as to develop a hernia mesh that can prevent fibrosis. In this study, three different commercial polypropylene hernia meshes were examined to explore the connection between the fabric structure and mechanical properties. In vitro dynamic culture was used to investigate the mechanism by which the mechanical properties of the mesh in a dynamic environment affect cell differentiation. Additionally, electrospinning was employed to create polycaprolactone spider-silk-like fiber mats to achieve mechanical energy dissipation in dynamic conditions. These fiber mats were then combined with the preferred hernia mesh. The results demonstrated that the composite mesh could reduce the activation of fibroblast mechanical signaling pathways and inhibit its differentiation into myofibroblasts in dynamic environments.
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Affiliation(s)
- Yongjie Jiao
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Xiaowei Yang
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Yan Li
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Fujun Wang
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Lu Wang
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Chaojing Li
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
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Ni B, Kaplan DL, Buehler MJ. ForceGen: End-to-end de novo protein generation based on nonlinear mechanical unfolding responses using a language diffusion model. Sci Adv 2024; 10:eadl4000. [PMID: 38324676 PMCID: PMC10849601 DOI: 10.1126/sciadv.adl4000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/08/2024] [Indexed: 02/09/2024]
Abstract
Through evolution, nature has presented a set of remarkable protein materials, including elastins, silks, keratins and collagens with superior mechanical performances that play crucial roles in mechanobiology. However, going beyond natural designs to discover proteins that meet specified mechanical properties remains challenging. Here, we report a generative model that predicts protein designs to meet complex nonlinear mechanical property-design objectives. Our model leverages deep knowledge on protein sequences from a pretrained protein language model and maps mechanical unfolding responses to create proteins. Via full-atom molecular simulations for direct validation, we demonstrate that the designed proteins are de novo, and fulfill the targeted mechanical properties, including unfolding energy and mechanical strength, as well as the detailed unfolding force-separation curves. Our model offers rapid pathways to explore the enormous mechanobiological protein sequence space unconstrained by biological synthesis, using mechanical features as the target to enable the discovery of protein materials with superior mechanical properties.
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Affiliation(s)
- Bo Ni
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Markus J. Buehler
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA
- Center for Computational Science and Engineering, Schwarzman College of Computing, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA
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34
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Kakihara N, Sato M, Shirai A, Koguchi M, Yamauchi S, Nakano T, Sasamoto R, Sato H. Green cocoon-derived sericin reduces cellular damage caused by radiation in human keratinocytes. Sci Rep 2024; 14:3068. [PMID: 38321256 PMCID: PMC10847496 DOI: 10.1038/s41598-024-53712-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 02/04/2024] [Indexed: 02/08/2024] Open
Abstract
Radiation therapy used in the treatment of cancer causes skin damage, and no method of care has been established thus far. Recently, it has become clear that sericin derived from silkworm cocoons has moisturizing and antioxidant functions. In addition, green cocoon-derived sericin, which is rich in flavonoids, may have enhanced functions. However, whether this green cocoon-derived sericin can reduce radiotherapy-induced skin damage is unclear. In the present study, we aimed at establishing care methods to reduce skin cell damage caused by X-irradiation using green cocoon-derived sericin. We investigated its effect on human keratinocytes using lactate dehydrogenase activity to indicate damage reduction. Our results showed that green cocoon-derived sericin reduced cell damage caused by X-irradiation. However, this effect was not observed when cells were treated before X-irradiation or with a sericin derived from white cocoons. In addition, green cocoon-derived sericin decreased the levels of reactive oxygen species and lipid peroxidation. Our results suggest that green cocoon sericin mitigates the damaging effect of X-irradiation on cells, hence presenting potential usefulness in reducing skin damage from radiation therapy and opening new avenues in the care of cancer patients.
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Affiliation(s)
- Nahoko Kakihara
- Department of Nursing, Graduate School of Health Sciences, Niigata University, Niigata, Japan.
| | - Momoko Sato
- Department of Medical Technology, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Ayaki Shirai
- Department of Medical Technology, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Mizuki Koguchi
- Department of Medical Technology, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Shiori Yamauchi
- Department of Medical Technology, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Toshimichi Nakano
- Department of Radiology and Radiation Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryuta Sasamoto
- Department of Radiological Technology, Graduate School of Health Sciences, Niigata University, Niigata, Japan
| | - Hideyo Sato
- Department of Medical Technology, Faculty of Medicine, Niigata University, Niigata, Japan
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Li S, Liu A, Qiu W, Wang Y, Liu G, Liu J, Shi Y, Li Y, Li J, Cai W, Park C, Ye M, Guo W. An All-Protein Multisensory Highly Bionic Skin. ACS Nano 2024; 18:4579-4589. [PMID: 38258755 DOI: 10.1021/acsnano.3c12525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
To achieve a highly realistic robot, closely mimicking human skin in terms of materials and functionality is essential. This paper presents an all-protein silk fibroin bionic skin (SFBS) that emulates both fast-adapting (FA) and slow-adapting (SA) receptors. The mechanically different silk film and hydrogel, which exhibited skin-like properties, such as stretchability (>140%), elasticity, low modulus (<10 kPa), biocompatibility, and degradability, were prepared through mesoscopic reconstruction engineering to mimic the epidermis and dermis. Our SFBS, incorporating SA and FA sensors, demonstrated a highly sensitive (1.083 kPa-1) static pressure sensing performance (in vitro and in vivo), showed the ability to sense high-frequency vibrations (50-400 Hz), could discriminate materials and sliding, and could even identify the fine morphological differences between objects. As proof of concept, an SFBS-integrated rehabilitation glove was synthesized, which could help stroke patients regain sensory feedback. In conclusion, this work provides a practical approach for developing skin equivalents, prostheses, and smart robots.
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Affiliation(s)
- Shengyou Li
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Andeng Liu
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Wu Qiu
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao 266071, Shandong, China
| | - Yimeng Wang
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Guoqing Liu
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Jiarong Liu
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Yating Shi
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Yaxian Li
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Jianing Li
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Wenjie Cai
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Cheolmin Park
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Meidan Ye
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
| | - Wenxi Guo
- Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen 361005, China
- Jiujiang Research Institute, Xiamen University, Jiujiang 332000, China
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Xu S, Wu Q, Tang Z, Li P. Identification and Analysis of DNA Methylation Inflammation-Related Key Genes in Intracerebral Hemorrhage. Biochem Genet 2024; 62:395-412. [PMID: 37354351 DOI: 10.1007/s10528-023-10430-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 06/12/2023] [Indexed: 06/26/2023]
Abstract
Inflammation and DNA methylation have been reported to play key roles in intracerebral hemorrhage (ICH). This study aimed to investigate new diagnostic biomarkers associated with inflammation and DNA methylation using a comprehensive bioinformatics approaches. GSE179759 and GSE125512 were collected from the Gene Expression Omnibus database, and 3222 inflammation-related genes (IFRGs) were downloaded from the Molecular Signatures Database. Key differentially expressed methylation-regulated and inflammation-related genes (DE-MIRGs) were identified by overlapping methylation-regulated differentially expressed genes (MeDEGs) between patients with ICH and control samples, module genes from weighted correlation network analysis, and IFRGs. Functional annotation of DE-MIRGs was performed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). A protein-protein interaction (PPI) network was constructed to clarify the interrelationships between different DE-MIRGs. The key genes were categorized by least absolute shrinkage selection operator (LASSO) and support vector machine-recursive feature elimination (SVM-RFE), and gene set enrichment analysis (GSEA). A total of 22 DE-MIRGs were acquired from 451 MeDEGs, 3222 IFRGs, and 302 module genes, and were mainly enriched in the GO terms of wound healing, blood coagulation, and hemostasis; and the KEGG pathways of PI3K/Akt signaling, focal adhesion, and regulation of actin cytoskeleton. A PPI network with 22 nodes and 87 edges was constructed based on the 22 DE-MIRGs, 11 of which were selected for key gene selection. Two 2 key genes (SELP and S100A4) were identified using LASSO and SVM-RFE. Finally, SELP was mainly enriched in cell morphogenesis involved in differentiation, cytoplasmic translation, and actin binding of GO terms, and the KEGG pathway including endocytosis, focal adhesion, and platelet activation. S100A4 was mainly enriched in GO terms including mitochondrial inner membrane; mitochondrial respirasome and lysosomal membrane; and the KEGG pathway of oxidative phosphorylation, regulation of actin cytoskeleton, and chemical carcinogenesis-reactive oxygen species. Twenty-two DE-MIRGs-associated inflammation and DNA methylation were identified between patients with ICH and normal controls, and two key genes (SELP and S100A4) were identified and regarded as biomarkers for ICH, which could provide the research foundation for further investigation of the pathological mechanism of ICH.
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Affiliation(s)
- Sanpeng Xu
- Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Qiong Wu
- Xin Yang Central Hospital, Xinyang, China
| | - Zhe Tang
- Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Ping Li
- Changchun University of Traditional Chinese Medicine, Changchun, China.
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37
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Kreuz J, Michalik P, Wolff JO. Comparative anatomy of the spinneret musculature in cribellate and ecribellate spiders (Araneae). J Morphol 2024; 285:e21670. [PMID: 38361256 DOI: 10.1002/jmor.21670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 02/17/2024]
Abstract
Silk production is a prominent characteristic of spiders. The silk is extruded through spigots located on the spinnerets, which are single- to multimembered paired appendages at the end of the abdomen. Most extant spiders have three pairs of spinnerets, and in between either a cribellum (spinning plate) or a colulus (defunct vestigial organ), dividing these spiders into cribellate and ecribellate species. Previous research has shown that cribellate and ecribellate spiders differ not only in the composition of their spinning apparatus but also in the movements of their spinnerets during silk spinning. The objective of this study was to determine whether the differences in spinneret movements are solely due to variations in spinneret shape or whether they are based on differences in muscular anatomy. This was accomplished by analyzing microcomputed tomography scans of the posterior abdomen of each three cribellate and ecribellate species. It was found that the number of muscles did not generally differ between cribellate and ecribellate species, but varied considerably between the species within each of these two groups. Muscle thickness, particularly of the posterior median spinneret, varied slightly between groups, with cribellate spiders exhibiting more robust muscles, possibly to aid in the combing process during cribellar thread production. Interestingly, the vestigial colulus still possesses muscles, that can be homologized with those of the cribellum. This exploration into spinneret anatomy using microcomputed tomography data reveals that despite being small appendages, the spider spinnerets are equipped with a complex musculature that enables them to perform fine-scaled maneuvers to construct different fiber-based materials.
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Affiliation(s)
- Josefine Kreuz
- Evolutionary Biomechanics, Zoological Institute and Museum, University of Greifswald, Greifswald, Germany
| | - Peter Michalik
- Zoological Museum, Zoological Institute and Museum, University of Greifswald, Greifswald, Germany
| | - Jonas O Wolff
- Evolutionary Biomechanics, Zoological Institute and Museum, University of Greifswald, Greifswald, Germany
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38
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Bol M, Montanari G. Making Yellows Last with Nitric Acid: Exploring Colour Permanence in Art and Knowledge, 1600-1850. Ambix 2024; 71:98-122. [PMID: 38444391 DOI: 10.1080/00026980.2024.2311462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Nitric acid became commonly available in the seventeenth century. Since then, it held the interest of chemists, especially those interested in the art of dyeing. Due to what is now called the xanthoproteic reaction (from Greek xanthós, describing shades of yellow), nitric acid produces a stable yellow colouration in proteinaceous materials, such as wool, silk, and bones. The chemistry of this reaction is well understood today. Less well-known is that it held the interest of dyers in the past. Dyers considered the ability of nitric acid to give a yellow colour to certain substances a solution to giving materials a durable, that is, a lasting, yellow colour. Yellow, indeed, posed a problem in the art of dyeing. Before the discovery of synthetic dyes in the mid-nineteenth century, there were no organic yellow dyes with long-term colour stability. Using historical dyeing manuals and chemistry treatises, combined with our practical engagement with the processes they describe, this paper traces how, between the seventeenth and nineteenth centuries, dyers explored nitric acid while examining the durability of yellow colourations. Based on these explorations into nitric acid, the chemical arts developed theories about the nature of colour, and about the causes for its relative permanence.
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Affiliation(s)
- Marjolijn Bol
- Technical Art History, Utrecht University, Utrecht, Netherlands
| | - Giacomo Montanari
- Department of Philosophy and Communication Studies, University of Bologna, Bologna, Italy
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Wang G, Ding X, Yang J, Ma L, Sun X, Zhu R, Lu R, Xiao Z, Xing Z, Liu J, Pan Z, Xu S, Sima Y. Effects of Habitual Dietary Change on the Gut Microbiota and Health of Silkworms. Int J Mol Sci 2024; 25:1722. [PMID: 38339000 PMCID: PMC10855636 DOI: 10.3390/ijms25031722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/24/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
Diet plays a crucial role in shaping the gut microbiota and overall health of animals. Traditionally, silkworms are fed fresh mulberry leaves, and artificial diets do not support good health. The aim of this study was to explore the relationship between the dietary transition from artificial diets to mulberry leaves and the effects on the gut microbiota and physiological changes in silkworms as a model organism. With the transition from artificial diets to mulberry leaves, the diversity of the silkworm gut microbiota increased, and the proportion of Enterococcus and Weissella, the dominant gut bacterial species in silkworms reared on artificial diets, decreased, whereas the abundance of Achromobacter and Rhodococcus increased. Dietary transition at different times, including the third or fifth instar larval stages, resulted in significant differences in the growth and development, immune resistance, and silk production capacity of silkworms. These changes might have been associated with the rapid adaptation of the intestinal microbiota of silkworms to dietary transition. This study preliminarily established a dietary transition-gut microbial model in silkworms based on the conversion from artificial diets to mulberry leaves, thus providing an important reference for future studies on the mechanisms through which habitual dietary changes affect host physiology through the gut microbiome.
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Affiliation(s)
- Guang Wang
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Xueyan Ding
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Jiameng Yang
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Lu Ma
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Xiaoning Sun
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Ruihong Zhu
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Riming Lu
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Zhitian Xiao
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Zhiyi Xing
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Jingbin Liu
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Zhonghua Pan
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Shiqing Xu
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
| | - Yanghu Sima
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou 215123, China; (G.W.); (S.X.)
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou 215123, China
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40
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Lin ZK, Lin JS, Chen ZH, Cheng HW, Huang WC, Chen SY. Electrogelated drug-embedded silk/gelatin/rGO degradable electrode for anti-inflammatory applications in brain-implant systems. J Mater Chem B 2024; 12:1361-1371. [PMID: 38234194 DOI: 10.1039/d3tb02715e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Implantable electrodes have raised great interest over the last years with the increasing incidence of neurodegenerative disorders. For brain implant devices, some key factors resulting in the formation of glial scars, such as mechanical mismatch and acute injury-induced inflammation, should be considered for material design. Therefore, in this study, a new biocompatible flexible electrode (e-SgG) with arbitrary shapes on a positive electrode was developed via electrogelation by applying a direct electrical voltage on a silk fibroin/gelatin/reduced graphene oxide composite hydrogel. The implantable flexible e-SgG-2 film with 1.23% rGO content showed high Young's modulus (11-150 MPa), which was sufficient for penetration under dried conditions but subsequently became a biomimetic brain tissue with low Young's modulus (50-3200 kPa) after insertion in the brain. At the same time, an anti-inflammatory drug (DEX) incorporated into the e-SgG-2 film can be electrically stimulated to exhibit two-stage release to overcome tissue inflammation during cyclic voltammetry via degradation by applying an AC field. The results of cell response to the SF/gelatin/rGO/DEX composite film showed that the released DEX could interrupt astrocyte growth to reduce the inflammatory response but showed non-toxicity toward neurons, which demonstrated a great potential for the application of the biocompatible and degradable e-SgG-D electrodes in the improvement of nerve tissue repair.
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Affiliation(s)
- Zhen-Kai Lin
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
| | - Jing-Syu Lin
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
| | - Zih-Huei Chen
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
| | - Hung-Wei Cheng
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
| | - Wei-Chen Huang
- Department of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
| | - San-Yuan Chen
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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41
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Zhang M, Zhuang Y, Mao J, Gong M, Zhang Y, Shi A, Lyu Y, Yan X. Application of Y-Z deformable magnetic ring for recanalization of transanal single-access rectal stricture. Sci Rep 2024; 14:1865. [PMID: 38253773 PMCID: PMC10803334 DOI: 10.1038/s41598-024-52531-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/19/2024] [Indexed: 01/24/2024] Open
Abstract
Magnetic compression anastomosis has been reported to have remarkable clinical outcomes. Here, we tested the applicability of a Y-Z deformable magnetic ring (DMR) for non-surgical manipulation of rectal stenosis (RS) in a beagle dog model under a transanal single-access condition. RS was modeled in 8 beagle dogs using partial ligation with silk thread. Under X-ray guidance, the Y-Z DMR was positioned at the proximal and distal ends of the RS, and the magnetic ring was bent into an "O" shape, such that the two rings were magnetically attracted. Operation time, complications during or after operation, and discharge time of the magnetic rings were recorded. The anastomosis bursting pressure was measured two weeks after removing the rings, and its formation was assessed through gross and histological examination. Partial ligation with a silk thread successfully established the canine RS model. After Y-Z DMR installation, the magnetic ring was successfully reconfigured from an "S" to an "O" shape. Strong attraction existed between the rings. The operation time was 9-15 min (average: 11.75 ± 1.98 min). No rectal bleeding or perforation occurred during or after operation. The ring was naturally expelled 7-10 days after surgery. A pressure of > 300 mmHg was recorded at the point of anastomosis rupture. The rectal anastomosis appeared to have healed properly on the surface, which was confirmed histologically, signifying the success of this procedure. A Y-Z DMR facilitated the successful recanalization of transanal single-channel RS without needing surgery in an animal model.
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Affiliation(s)
- Miaomiao Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, Shaanxi, China
- National and Local Joint Engineering Research Center of Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 76 West Yanta Road, Xi'an, 710061, Shaanxi, China
| | | | - Jianqi Mao
- Zonglian College, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Mingyan Gong
- Zonglian College, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Yuhan Zhang
- Qide College, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Aihua Shi
- National and Local Joint Engineering Research Center of Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 76 West Yanta Road, Xi'an, 710061, Shaanxi, China.
| | - Yi Lyu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, Shaanxi, China.
- National and Local Joint Engineering Research Center of Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 76 West Yanta Road, Xi'an, 710061, Shaanxi, China.
| | - Xiaopeng Yan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 West Yanta Road, Xi'an, 710061, Shaanxi, China.
- National and Local Joint Engineering Research Center of Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 76 West Yanta Road, Xi'an, 710061, Shaanxi, China.
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Yang X, Xu L, Xiong S, Rao H, Tan F, Yan J, Bao Y, Albanese A, Camposeo A, Pisignano D, Li B. Light-Emitting Microfibers from Lotus Root for Eco-Friendly Optical Waveguides and Biosensing. Nano Lett 2024; 24:566-575. [PMID: 37962055 DOI: 10.1021/acs.nanolett.3c03213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Optical biosensors based on micro/nanofibers are highly valuable for probing and monitoring liquid environments and bioactivity. Most current optical biosensors, however, are still based on glass, semiconductors, or metallic materials, which might not be fully suitable for biologically relevant environments. Here, we introduce biocompatible and flexible microfibers from lotus silk as microenvironmental monitors that exhibit waveguiding of intrinsic fluorescence as well as of coupled light. These features make single-filament monitors excellent building blocks for a variety of sensing functions, including pH probing and detection of bacterial activity. These results pave the way for the development of new and entirely eco-friendly, potentially multiplexed biosensing platforms.
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Affiliation(s)
- Xianguang Yang
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Liping Xu
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Shijie Xiong
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Hao Rao
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Fangchang Tan
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Jiahao Yan
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Yanjun Bao
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Annachiara Albanese
- Dipartimento di Fisica, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
| | - Andrea Camposeo
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, I-56127 Pisa, Italy
| | - Dario Pisignano
- Dipartimento di Fisica, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza S. Silvestro 12, I-56127 Pisa, Italy
| | - Baojun Li
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
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Xie C, Yang X, Zheng F, Shi J, Huo C, Wang Z, Reis RL, Kundu SC, Xiao B, Duan L. Facilely printed silk fibroin hydrogel microparticles as injectable long-lasting fillers. Biomater Sci 2024; 12:375-386. [PMID: 37997042 DOI: 10.1039/d3bm01488f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
There is a high demand from aging people for facial fillers with desirable biocompatibility and lasting filling effects to overcome facial depression. Novel injectable regenerated silk fibroin (RSF) microparticles were facilely printed from a glycidyl methacrylate-modified silk fibroin hydrogel to address this issue. The β-sheet content and mechanical properties of the RSF hydrogel can be simply modulated by the number of freeze-thawing cycles, and the swelling rate of the RSF hydrogel in saline was negligible. The printed RSF microparticles were uniform, and their diameter was about 300-500 μm, which could be adjusted by the pore sizes of the printed screens. After the injection with a 26-gauge needle, the size distribution of RSF microparticles had no noticeable variation, suggesting that the microparticles could bear the shear strain without breaking during the injection. The in vitro experiments demonstrated that RSF not only had desirable biocompatibility but also facilitated fibroblast migration. The subcutaneous injection experiments demonstrated that the RSF microparticles formed a lasting spot in the injected site. The tissue sections revealed that the RSF microparticles were still distinct on week 8, and blood vessels formed around the microparticles. These promising data demonstrate that the printed RSF microparticles have great potential for facial rejuvenation.
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Affiliation(s)
- Chunyu Xie
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Xiao Yang
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Fan Zheng
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Jiahao Shi
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Caixia Huo
- Beijing Green Pharmaceutical Technology Co., Ltd, Fengtai, Beijing 100070, China
| | - Zuyuan Wang
- Beijing Green Pharmaceutical Technology Co., Ltd, Fengtai, Beijing 100070, China
| | - Rui L Reis
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Subhas C Kundu
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Bo Xiao
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Lian Duan
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
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Hopfe C, Ospina-Jara B, Schulze T, Tischer M, Morales D, Reinhartz V, Esfahani RE, Valderrama C, Pérez-Rigueiro J, Bleidorn C, Feldhaar H, Cabra-García J, Scheibel T. Impact of environmental factors on spider silk properties. Curr Biol 2024; 34:56-67.e5. [PMID: 38118450 DOI: 10.1016/j.cub.2023.11.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/11/2023] [Accepted: 11/20/2023] [Indexed: 12/22/2023]
Abstract
Spider orb webs have evolved to stop flying prey, fast and slow alike. One of the main web elements dissipating impact energy is the radial fibers, or major ampullate silks, which possess a toughness surpassing most man-made materials. Orb webs are extended phenotypes, and as such their architectural elements, including major ampullate silks, have been selected to optimize prey capture under the respective environmental conditions. In this study, we investigated the correlation of three landscape scales and three microhabitat characteristics with intrinsic silk properties (elastic modulus, yield stress, tensile strength, extensibility, and toughness) to understand underlying ecological patterns. For this purpose, we collected and mechanically tested major ampullate silks from 50 spider species inhabiting large altitudinal and climatic gradients in Colombia. Using regression analysis and model selection, we investigated the environmental drivers of inter- and intra-specific patterns of major ampullate silk properties, taking into account phylogenetic relatedness based on newly sequenced mitochondrial genomes. We found that the total amount of energy absorbed, i.e., toughness and tensile strength, is higher for fibers from species inhabiting regions where heavy rainfall is common. Interestingly, we observe the same general trend between individuals of the same species, stressing the importance of this environmental driver. We also observe a phylogenetic conservation in the relation of environmental variables with silk tensile strength and yield stress. In conclusion, the increase in major ampullate silk tensile strength and toughness may reflect an adaptation to prevent frequent rain damage to orb webs and the associated energetic loss.
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Affiliation(s)
- Charlotte Hopfe
- Department of Biomaterials, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany.
| | - Bryan Ospina-Jara
- Department of Biology, Universidad del Valle, Cl. 13 #100-00, Cali 760042, Colombia
| | - Thilo Schulze
- Department of Animal Evolution and Biodiversity, Georg-August-Universität Göttingen, Untere Karspüle 2, Göttingen 37073, Germany
| | - Marta Tischer
- Department of Animal Evolution and Biodiversity, Georg-August-Universität Göttingen, Untere Karspüle 2, Göttingen 37073, Germany
| | - Diego Morales
- Department of Biology, Universidad del Valle, Cl. 13 #100-00, Cali 760042, Colombia
| | - Vivien Reinhartz
- Department of Biomaterials, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Rashin Eshghi Esfahani
- Department of Biomaterials, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Carlos Valderrama
- Facultad de Ciencias, Universidad del Rosario, Cl. 12c #6-25, Bogotá 111711, Colombia
| | - José Pérez-Rigueiro
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Crta. M40, Madrid 28223, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, C/Prof. Aranguren 3, Madrid 28040, Spain; Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Madrid 28029, Spain; Biomaterials and Regenerative Medicine Group, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), C/ Prof. Martín Lagos s/n, Madrid 28040, Spain
| | - Christoph Bleidorn
- Department of Animal Evolution and Biodiversity, Georg-August-Universität Göttingen, Untere Karspüle 2, Göttingen 37073, Germany
| | - Heike Feldhaar
- Department of Animal Ecology I, Bayreuth Center of Ecology and Environmental Research (BayCEER), Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany
| | - Jimmy Cabra-García
- Department of Biology, Universidad del Valle, Cl. 13 #100-00, Cali 760042, Colombia
| | - Thomas Scheibel
- Department of Biomaterials, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany; Bayreuther Zentrum für Kolloide und Grenzflächen, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany; Bayreuther Materialzentrum, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany; Bayreuther Zentrum für Molekulare Biowissenschaften, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany; Bayrisches Polymerinstitut, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany.
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Agnarsson I. Biomechanics: Rain yields tougher spider silks. Curr Biol 2024; 34:R30-R33. [PMID: 38194927 DOI: 10.1016/j.cub.2023.11.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Broad ecological sampling of spider silks from multiple species shows that the biomechanical properties of spider silk reflect the habitat in which their orb webs are built. Silk toughness is highest in habitats with dense rain.
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Affiliation(s)
- Ingi Agnarsson
- Faculty of Life and Environmental Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland; Department of Entomology, National Museum of Natural History, Washington, DC 20013-7012, USA; School of Life Sciences, Hubei University, Wuhan, Hubei, China.
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46
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Park W, Yoon T, Chang H, You J, Na S. An atomistic scale simulation study of structural properties in the silk-fibrohexamerin complex. Nanoscale 2024; 16:821-832. [PMID: 38093650 DOI: 10.1039/d3nr04787c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
The use of Bombyx mori silk fibroin in composite materials has been extensively explored in many studies, owing to its remarkable mechanical properties. Recently, the N-glycan-engineered P25 protein was utilized to improve the mechanical properties of silk. However, the mechanism by which N-glycan-engineered P25 protein enhances the mechanical properties of silk remains unclear. This study analyzed the interaction between the P25 protein and silkworm silk using quantum mechanics/molecular mechanics multiscale simulations and discovered stronger hydrogen bonding between the amorphous domain and the P25 protein. The results confirmed that glycoengineering of the mannose molecule in N-glycan in orders of three, five, and seven increased the hydrogen bonding of the amorphous structures. However, P25 has fewer binding interactions with the crystalline domain. Silk amino acids and mannose molecules were analyzed using QM simulations, and hydroxyl and charged amino acids in the amorphous domains were found to have relatively higher reactivity with mannose molecules in N-glycans than basic and aliphatic amino acids in the crystalline domain. This study demonstrates how the N-glycan-engineered P25 protein can improve the mechanical properties of silk fibroin and identifies a key factor for N-glycan-engineered proteins.
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Affiliation(s)
- Wooboum Park
- Department of Mechanical Engineering, Korea University, 02841, Seoul, Republic of Korea.
| | - Taeyoung Yoon
- Department of Mechanical Engineering, Korea University, 02841, Seoul, Republic of Korea.
| | - Hyunjoon Chang
- HITS Inc., 124, Teheran-ro, Gangnam-gu, Seoul, 06234, Republic of Korea
| | - Juneseok You
- Department of Mechanical Engineering, Korea University, 02841, Seoul, Republic of Korea.
| | - Sungsoo Na
- Department of Mechanical Engineering, Korea University, 02841, Seoul, Republic of Korea.
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47
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Sun Z, Liu H, Dai D, Lyu H, Huang R, Wang W, Guo C. Injectable cell-laden silk acid hydrogel. Chem Commun (Camb) 2024; 60:316-319. [PMID: 38063025 DOI: 10.1039/d3cc04280d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
This study presents an injectable cell-laden hydrogel system based on silk acid, a carboxylated derivative of natural silk fibroin, which exhibits promising applications in biomedicine. The hydrogel is produced under physiological conditions (37 °C and pH 7.4) via physical crosslinking. Notably, the hydrogel demonstrates remarkable cytocompatibility, enabling efficient cell encapsulation, and exhibits good injectability. These promising results strongly indicate the potential of silk acid hydrogel for transformative applications, including 3D cell culture, targeted cell delivery, and tissue engineering.
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Affiliation(s)
- Ziyang Sun
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China.
| | - Haoran Liu
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China.
| | - Dandan Dai
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China.
| | - Hao Lyu
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China.
| | - Ruochuan Huang
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China.
| | - Wenzhao Wang
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China.
| | - Chengchen Guo
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China.
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, 310024, China
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Sun Y, Hiew SH, Miserez A. Bioinspired Squid Peptides─A Tale of Curiosity-Driven Research Leading to Unforeseen Biomedical Applications. Acc Chem Res 2024; 57:164-174. [PMID: 38117659 DOI: 10.1021/acs.accounts.3c00685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
ConspectusThe molecular design of many peptide-based materials originates from structural proteins identified in living organisms. Prominent examples that have garnered broad interdisciplinary research interest (chemistry, materials science, bioengineering, etc.) include elastin, silk, or mussel adhesive proteins. The critical first steps in this type of research are to identify a convenient model system of interest followed by sequencing the prevailing proteins from which these biological structures are assembled. In our laboratory, the main model systems for many years have been the hard biotools of cephalopods, particularly their parrot-like tough beak and their sucker ring teeth (SRT) embedded within the sucker cuptions that line the interior surfaces of their arms and tentacles. Unlike the majority of biological hard tissues, these structures are devoid of biominerals and consist of protein/polysaccharide biomolecular composites (the beak) or, in the case of SRT, are entirely made of proteins that are assembled by supramolecular interactions.In this Account, we chronicle our journey into the discovery of these intriguing biological materials. We initially focus on their excellent mechanical robustness followed by the identification and sequencing of the structural proteins from which they are built, using the latest "omics" techniques including next-generation sequencing and high-throughput proteomics. A common feature of these proteins is their modular architecture at the molecular level consisting of short peptide repeats. We describe the molecular design of these peptide building blocks, highlighting the consensus motifs identified to play a key role in biofabrication and in regulating the mechanical properties of the macroscopic biological material. Structure/property relationships unveiled through advanced spectroscopic and scattering techniques, including Raman, infrared, circular dichroism, and NMR spectroscopies as well as wide-angle and small-angle X-ray scattering, are also discussed.We then present recent developments in exploiting the discovered molecular designs to engineer peptides and their conjugates for promising biomedical applications. One example includes short peptide hydrogels that self-assemble entirely under aqueous conditions and simultaneously encapsulate large macromolecules during the gelation process. A second example involves peptide coacervate microdroplets produced by liquid-liquid phase separation. These microdroplets are capable of recruiting and delivering large macromolecular therapeutics (genes, mRNA, proteins, peptides, CRISPR/Cas 9 modalities, etc.) into mammalian cells, which introduces exciting prospects in cancer, gene, and immune therapies.This Account also serves as a testament to how curiosity-driven explorations, which may lack an obvious practical goal initially, can lead to discoveries with unexpected and promising translational potential.
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Affiliation(s)
- Yue Sun
- Biological and Biomimetic Material Laboratory (BBML), Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University (NTU), 637553, Singapore
| | - Shu Hui Hiew
- Biological and Biomimetic Material Laboratory (BBML), Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University (NTU), 637553, Singapore
| | - Ali Miserez
- Biological and Biomimetic Material Laboratory (BBML), Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University (NTU), 637553, Singapore
- School of Biological Sciences, NTU, 637551, Singapore
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Wang SL, Li XW, Xu W, Yu QY, Fang SM. Advances of regenerated and functionalized silk biomaterials and application in skin wound healing. Int J Biol Macromol 2024; 254:128024. [PMID: 37972830 DOI: 10.1016/j.ijbiomac.2023.128024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/26/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
The cocoon silk of silkworms (Bombyx mori) has multiple potential applications in biomedicine due to its good biocompatibility, mechanical properties, degradability, and plasticity. Numerous studies have confirmed that silk material dressings are more effective than traditional ones in the skin wound healing process. Silk material research has recently moved toward functionalized biomaterials and achieved remarkable results. Herein, we summarize the recent advances in functionalized silk materials and their efficacy in skin wound healing. In particular, transgenic technology has realized the specific expression of human growth factors in the silk glands of the silkworms, which lays the foundation for fabricating novel and low-cost functionalized materials. Without a green and safe preparation process, the best raw silk materials cannot be made into medically safe products. Therefore, we provide an overview of green and gentle approaches for silk degumming and silk sericin (SS) extraction. Moreover, we summarize and discuss the processing methods of silk fibroin (SF) and SS materials and their potential applications, such as burns, diabetic wounds, and other wounds. This review aims to enhance our understanding of new advances and directions in silk materials and guide future biomedical research.
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Affiliation(s)
- Sheng-Lan Wang
- College of Life Science, China West Normal University, Nanchong 637002, Sichuan, China
| | - Xiao-Wei Li
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Wei Xu
- Department of Dermatology, Chongqing Hospital of Traditional Chinese Medicine, No. 40 Daomenkou St., District Yuzhong, Chongqing 400011, China
| | - Quan-You Yu
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Shou-Min Fang
- College of Life Science, China West Normal University, Nanchong 637002, Sichuan, China.
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He X, Wang R, Zhou F, Liu H. Recent advances in photo-crosslinkable methacrylated silk (Sil-MA)-based scaffolds for regenerative medicine: A review. Int J Biol Macromol 2024; 256:128031. [PMID: 37972833 DOI: 10.1016/j.ijbiomac.2023.128031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
Silks fibroin can be chemically modified through amino acid side chains to obtain methacrylated silk (Sil-MA). Sil-MA could be processed into a variety of scaffold forms and combine synergistically with other biomaterials to form composites vehicle. The advent of Sil-MA material has enabled impressive progress in the development of various scaffolds based on Sil-MA type to imitate the structural and functional characteristics of natural tissues. This review highlights the reasonable design and bio-fabrication strategies of diverse Sil-MA-based tissue constructs for regenerative medicine. First, we elucidate modification methodology and characteristics of Sil-MA. Next, we describe characteristics of Sil-MA hydrogels, and focus on the design approaches and formation of different types of Sil-MA-based hydrogels. Thereafter, we present an overview of the recent advances in the application of Sil-MA based scaffolds for regenerative medicine, including detailed strategies for the engineering methods and materials used. Finally, we summarize the current research progress and future directions of Sil-MA in regenerative medicine. This review not only delineates the representative design strategies and their application in regenerative medicine, but also provides new direction in the fabrication of biomaterial constructs for the clinical translation in order to stimulate the future development of implants.
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Affiliation(s)
- Xi He
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, PR China
| | - RuiDeng Wang
- Peking University Third Hospital, Department of Orthopaedics, PR China; Peking University Third Hospital, Engineering Research Center of Bone and Joint Precision Medicine, PR China
| | - Fang Zhou
- Peking University Third Hospital, Department of Orthopaedics, PR China
| | - Haifeng Liu
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, PR China.
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