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González-Restrepo D, Zuluaga-Vélez A, Orozco LM, Sepúlveda-Arias JC. Silk fibroin-based dressings with antibacterial and anti-inflammatory properties. Eur J Pharm Sci 2024; 195:106710. [PMID: 38281552 DOI: 10.1016/j.ejps.2024.106710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/03/2024] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
Silk fibroin is a fibrillar protein obtained from arthropods such as mulberry and non-mulberry silkworms. Silk fibroin has been used as a dressing in wound treatment for its physical, chemical, mechanical, and biological properties. This systematic review analyzed studies from PubMed, Web of Science, and Scopus databases to identify the molecules preferred for functionalizing silk fibroin-based dressings and to describe their mechanisms of exhibiting anti-inflammatory and antibacterial properties. The analysis of the selected articles allowed us to classify the dressings into different conformations, such as membranes, films, hydrogels, sponges, and bioadhesives. The incorporation of various molecules, including antibiotics, natural products, peptides, nanocomposites, nanoparticles, secondary metabolites, growth factors, and cytokines, has allowed the development of dressings that promote wound healing with antibacterial and immunomodulatory properties. In addition, silk fibroin-based dressings have been established to have the potential to regenerate wounds such as venous ulcers, arterial ulcers, diabetic foot, third-degree burns, and neoplastic ulcers. Evaluation of the efficacy of silk fibroin-based dressings in tissue engineering is an area of great activity that has shown significant advances in recent years.
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Affiliation(s)
- David González-Restrepo
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Augusto Zuluaga-Vélez
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Lina M Orozco
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia; Grupo Polifenoles, Facultad de Tecnologías, Escuela de Química, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Juan C Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia.
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Ma YF, Yan XZ. Periodontal Guided Tissue Regeneration Membranes: Limitations and Possible Solutions for the Bottleneck Analysis. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:532-544. [PMID: 37029900 DOI: 10.1089/ten.teb.2023.0040] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
Guided tissue regeneration (GTR) is an important surgical method for periodontal regeneration. By placing barrier membrane on the root surface of the tooth to guide the adhesion and proliferation of periodontal ligament cells, periodontal tissue regeneration can be achieved. This review intends to analyze the current limitations of GTR membranes and to propose possible solutions for developing new ones. Limitations of current GTR membranes include nonabsorbable membranes and absorbable synthetic polymer membranes exhibit weak biocompatibility; when applying to a large defect wound, the natural collagen membrane with fast degradation rate have limited mechanical strength, and the barrier function may not be maintained well. Although the degradation time can be prolonged after cross-linking, it may cause foreign body reaction and affect tissue integration; The clinical operation of current barrier membranes is inconvenient. In addition, most of the barrier membranes lack bioactivity and will not actively promote periodontal tissue regeneration. Possible solutions include using electrospinning (ELS) techniques, nanofiber scaffolds, or developing functional gradient membranes to improve their biocompatibility; adding Mg, Zn, and/or other metal alloys, or using 3D printing technology to improve their mechanical strength; increasing the concentration of nanoparticles or using directional arrangement of membrane fibers to control the fiber diameter and porosity of the membrane, which can improve their barrier function; mixing natural and synthetic polymers as well as other biomaterials with different degradation rates in proportion to change the degradation rate and maintain barrier function; to improve the convenience of clinical operation, barrier membranes that meets personalized adhesion to the wound defect can be manufactured; developing local controlled release drug delivery systems to improve their bioactivity. Impact statement This review provides an up-to-date summary of commonly commercial periodontal guided tissue regeneration membranes, and analyze their limitations in clinical use. Using studies published recently to explore possible solutions from several perspectives and to raise possible strategies in the future. Several strategies have tested in vivo/in vitro, which will guide the way to propel clinical translation, meeting clinical needs.
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Affiliation(s)
- Yi-Fei Ma
- Department of Periodontology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, People's Republic of China
| | - Xiang-Zhen Yan
- Department of Periodontology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, People's Republic of China
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Zhou W, Xie Z, Si R, Chen Z, Javeed A, Li J, Wu Y, Han B. Actinomycin-X2-Immobilized Silk Fibroin Film with Enhanced Antimicrobial and Wound Healing Activities. Int J Mol Sci 2023; 24:6269. [PMID: 37047243 PMCID: PMC10094675 DOI: 10.3390/ijms24076269] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Actinomycin is a family of chromogenic lactone peptides that differ in their peptide portions of the molecule. An antimicrobial peptide, actinomycin X2 (Ac.X2), was produced through the fermentation of a Streptomyces cyaneofuscatus strain. Immobilization of Ac.X2 onto a prepared silk fibroin (SF) film was done through a carbodiimide reaction. The physical properties of immobilized Ac.X2 (antimicrobial films, AMFs) were analyzed by ATR-FTIR, SEM, AFM, and WCA. The findings from an in vitro study showed that AMFs had a more broad-spectrum antibacterial activity against both S. aureus and E. coli compared with free Ac.X2, which showed no apparent strong effect against E. coli. These AMFs showed a suitable degradation rate, good hemocompatibility, and reduced cytotoxicity in the biocompatibility assay. The results of in vivo bacterially infected wound healing experiments indicated that wound inflammation was prevented by AMFs, which promoted wound repair and improved the wound microenvironment. This study revealed that Ac.X2 transformation is a potential candidate for skin wound healing.
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Affiliation(s)
- Wenjing Zhou
- Laboratory of Antiallergy Functional Molecules, Zhejiang Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhenxia Xie
- Laboratory of Antiallergy Functional Molecules, Zhejiang Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Ranran Si
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zijun Chen
- Laboratory of Antiallergy Functional Molecules, Zhejiang Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Ansar Javeed
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jiaxing Li
- Laboratory of Antiallergy Functional Molecules, Zhejiang Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yang Wu
- Laboratory of Antiallergy Functional Molecules, Zhejiang Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Bingnan Han
- Laboratory of Antiallergy Functional Molecules, Zhejiang Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
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Hossain SI, Sportelli MC, Picca RA, Gentile L, Palazzo G, Ditaranto N, Cioffi N. Green Synthesis and Characterization of Antimicrobial Synergistic AgCl/BAC Nanocolloids. ACS APPLIED BIO MATERIALS 2022; 5:3230-3240. [PMID: 35738566 PMCID: PMC9297327 DOI: 10.1021/acsabm.2c00207] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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All over the world,
one of the major challenges is the green synthesis
of potential materials against antimicrobial resistance and viruses.
This study demonstrates a simple method like chemistry lab titration
to synthesize green, facile, scalable, reproducible, and stable synergistic
silver chloride/benzyldimethylhexadecyl-ammonium chloride (AgCl/BAC)
colloidal Nanoantimicrobials (NAMs). Nanocolloidal dispersions of
AgCl in an aqueous medium are prepared by using silver nitrate (AgNO3) as precursor and BAC as both sources of chloride and stabilizer,
holding an asymmetric molecular structure. The synthetic approach
is scalable and green. Both the morphology and stability of AgCl/BAC
nanocolloids (NCs) were investigated as a function of different molar
fractions of the reagents. AgCl/BAC NCs were characterized by transmission
electron microscopy (TEM) and X-ray photoelectron and UV–vis
spectroscopies. Zeta potential measurements revealed increasing positive
potential values at every stage of the synthesis. Size distribution
and hydrodynamic diameter of the particles were measured by dynamic
light scattering (DLS), which predicted the formation of BAC layered
structures associated with the AgCl nanoparticles (NPs). Small-angle
X-ray scattering (SAXS) experiments verify the thickness of the BAC
bilayer around AgCl. The produced AgCl/BAC NCs probably have synergistic
antimicrobial properties from the AgCl core and the biocide BAC shell.
AgCl/BAC NCs stability over months was investigated. The experimental
evidence supports the morphological stability of the AgCl/BAC NCs,
while higher positive zeta potential values anticipate a long-term
antimicrobial effect: a higher surface charge causes NPs to be potentially
more lethal to bacteria. AgCl/BAC antimicrobial aqueous colloidal
suspensions will be used as additives for the industrial production
of antimicrobial coatings.
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Affiliation(s)
- Syed Imdadul Hossain
- Chemistry Department, University of Bari "Aldo Moro", via E. Orabona 4 - 70126 Bari, Italy.,CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Maria Chiara Sportelli
- Chemistry Department, University of Bari "Aldo Moro", via E. Orabona 4 - 70126 Bari, Italy
| | - Rosaria Anna Picca
- Chemistry Department, University of Bari "Aldo Moro", via E. Orabona 4 - 70126 Bari, Italy.,CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Luigi Gentile
- Chemistry Department, University of Bari "Aldo Moro", via E. Orabona 4 - 70126 Bari, Italy.,CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Gerardo Palazzo
- Chemistry Department, University of Bari "Aldo Moro", via E. Orabona 4 - 70126 Bari, Italy.,CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Nicoletta Ditaranto
- Chemistry Department, University of Bari "Aldo Moro", via E. Orabona 4 - 70126 Bari, Italy.,CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Nicola Cioffi
- Chemistry Department, University of Bari "Aldo Moro", via E. Orabona 4 - 70126 Bari, Italy.,CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
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Mei J, Zhou J, Kong L, Dai Y, Zhang X, Song W, Zhu C. An injectable photo-cross-linking silk hydrogel system augments diabetic wound healing in orthopaedic surgery through spatiotemporal immunomodulation. J Nanobiotechnology 2022; 20:232. [PMID: 35568914 PMCID: PMC9107711 DOI: 10.1186/s12951-022-01414-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/05/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The complicated hyperglycaemic and chronic inflammation of diabetic wounds in orthopaedic surgery leads to dysregulated immune cell function and potential infection risk. Immune interventions in diabetic wounds face a possible contradiction between simultaneous establishment of the pro-inflammatory microenvironment in response to potential bacterial invasion and the anti-inflammatory microenvironment required for tissue repair. To study this contradiction and accelerate diabetic-wound healing, we developed a photocurable methacryloxylated silk fibroin hydrogel (Sil-MA) system, co-encapsulated with metformin-loaded mesoporous silica microspheres (MET@MSNs) and silver nanoparticles (Ag NPs). RESULTS The hydrogel system (M@M-Ag-Sil-MA) enhanced diabetic-wound healing via spatiotemporal immunomodulation. Sil-MA imparts a hydrogel system with rapid in situ Ultra-Violet-photocurable capability and allows preliminary controlled release of Ag NPs, which can inhibit bacterial aggregation and create a stable, sterile microenvironment. The results confirmed the involvement of Met in the immunomodulatory effects following spatiotemporal dual-controlled release via the mesoporous silica and Sil-MA. Hysteresis-released from Met shifts the M1 phenotype of macrophages in regions of diabetic trauma to an anti-inflammatory M2 phenotype. Simultaneously, the M@M-Ag-Sil-MA system inhibited the formation of neutrophil extracellular traps (NETs) and decreased the release of neutrophil elastase, myeloperoxidase, and NETs-induced pro-inflammatory factors. As a result of modulating the immune microenvironmental, the M@M-Ag-Sil-MA system promoted fibroblast migration and endothelial cell angiogenesis in vivo, with verification of enhanced diabetic-wound healing accompanied with the spatiotemporal immunoregulation of macrophages and NETs in a diabetic mouse model. CONCLUSIONS Our findings demonstrated that the M@M-Ag-Sil-MA hydrogel system resolved the immune contradiction in diabetic wounds through spatiotemporal immunomodulation of macrophages and NETs, suggesting its potential as a promising engineered nano-dressing for the treatment of diabetic wounds in orthopaedic surgery.
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Affiliation(s)
- Jiawei Mei
- Department of Orthopaedics, First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China.,Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Jun Zhou
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Lingtong Kong
- Department of Orthopaedics, First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China
| | - Yong Dai
- Department of Orthopaedics, First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China
| | - Xianzuo Zhang
- Department of Orthopaedics, First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China.
| | - Wenqi Song
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China.
| | - Chen Zhu
- Department of Orthopaedics, First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China.
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