1
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Hodaei H, Esmaeili Z, Erfani Y, Esnaashari SS, Geravand M, Adabi M. Preparation of biocompatible Zein/Gelatin/Chitosan/PVA based nanofibers loaded with vitamin E-TPGS via dual-opposite electrospinning method. Sci Rep 2024; 14:23796. [PMID: 39394234 PMCID: PMC11470087 DOI: 10.1038/s41598-024-74865-9] [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: 05/20/2024] [Accepted: 09/30/2024] [Indexed: 10/13/2024] Open
Abstract
Wound management is a critical aspect of healthcare, necessitating effective and innovative wound dressing materials. Many existing wound dressings lack effectiveness and exhibit limitations, including poor antimicrobial activity, toxicity, inadequate moisture regulation, and weak mechanical performance. The aim of this study is to develop a natural-based nanofibrous structure that possesses desirable characteristics for use as a wound dressing. The chemical analysis confirmed the successful creation of Zein (Ze) (25% w/v) /gelatin (Gel) (10% w/v) /chitosan (CS) (2% w/v) /Polyvinyl alcohol (PVA) (10% w/v) nanofibrous scaffolds loaded with vitamin E tocopheryl polyethylene glycol succinate (Vit E). The swelling percentages of nanofiber (NF), NF + Vit E, cross-linked nanofiber (CNF), and CNF + Vit E were 49%, 110%, 410%, and 676%, respectively; and the degradation rates of NF, NF + Vit E, CNF, and CNF + Vit E were 29.57 ± 5.06%, 33.78 ± 7.8%, 14.03 ± 7.52%, 43 ± 6.27%, respectively. The antibacterial properties demonstrated that CNF impregnated with antibiotics reduced Escherichia coli (E. coli) counts by approximately 27-28% and Staphylococcus aureus (S. aureus) counts by about 34-35% compared to negative control. In conclusion, cross-linked Ze/Gel/CS/PVA nanofibrous scaffolds loaded with Vit E have potential as suitable wound dressing materials because environmentally friendly materials contribute to sustainable wound care and controlled degradation ensures wound dressings breakdown harmlessly.
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Affiliation(s)
- Homa Hodaei
- Department of Medical Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Zahra Esmaeili
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Erfani
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Sara Esnaashari
- Department of Medical Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mahvash Geravand
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Adabi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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2
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Zhang Z, Liu H, Yu DG, Bligh SWA. Alginate-Based Electrospun Nanofibers and the Enabled Drug Controlled Release Profiles: A Review. Biomolecules 2024; 14:789. [PMID: 39062503 PMCID: PMC11274620 DOI: 10.3390/biom14070789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 06/28/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024] Open
Abstract
Alginate is a natural polymer with good biocompatible properties and is a potential polymeric material for the sustainable development and replacement of petroleum derivatives. However, the non-spinnability of pure alginate solutions has hindered the expansion of alginate applications. With the continuous development of electrospinning technology, synthetic polymers, such as PEO and PVA, are used as co-spinning agents to increase the spinnability of alginate. Moreover, the coaxial, parallel Janus, tertiary and other diverse and novel electrospun fiber structures prepared by multi-fluid electrospinning have found a new breakthrough for the problem of poor spinning of natural polymers. Meanwhile, the diverse electrospun fiber structures effectively achieve multiple release modes of drugs. The powerful combination of alginate and electrostatic spinning is widely used in many biomedical fields, such as tissue engineering, regenerative engineering, bioscaffolds, and drug delivery, and the research fever continues to climb. This is particularly true for the controlled delivery aspect of drugs. This review provides a brief overview of alginate, introduces new advances in electrostatic spinning, and highlights the research progress of alginate-based electrospun nanofibers in achieving various controlled release modes, such as pulsed release, sustained release, biphasic release, responsive release, and targeted release.
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Affiliation(s)
- Zhiyuan Zhang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Z.Z.); (H.L.)
| | - Hui Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Z.Z.); (H.L.)
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Z.Z.); (H.L.)
| | - Sim-Wan Annie Bligh
- School of Health Sciences, Saint Francis University, Hong Kong 999077, China
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3
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Wu J, Yu F, Shao M, Zhang T, Lu W, Chen X, Wang Y, Guo Y. Electrospun Nanofiber Scaffold for Skin Tissue Engineering: A Review. ACS APPLIED BIO MATERIALS 2024; 7:3556-3567. [PMID: 38777621 DOI: 10.1021/acsabm.4c00318] [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] [Indexed: 05/25/2024]
Abstract
Skin tissue engineering (STE) is widely regarded as an effective approach for skin regeneration. Several synthetic biomaterials utilized for STE have demonstrated favorable fibrillar characteristics, facilitating the regeneration of skin tissue at the site of injury, yet they have exhibited a lack of in situ degradation. Various types of skin regenerative materials, such as hydrogels, nanofiber scaffolds, and 3D-printing composite scaffolds, have recently emerged for use in STE. Electrospun nanofiber scaffolds possess distinct advantages, such as their wide availability, similarity to natural structures, and notable tissue regenerative capabilities, which have garnered the attention of researchers. Hence, electrospun nanofiber scaffolds may serve as innovative biological materials possessing the necessary characteristics and potential for use in tissue engineering. Recent research has demonstrated the potential of electrospun nanofiber scaffolds to facilitate regeneration of skin tissues. Nevertheless, there is a need to enhance the rapid degradation and limited mechanical properties of electrospun nanofiber scaffolds in order to strengthen their effectiveness in soft tissue engineering applications in clinical settings. This Review centers on advanced research into electrospun nanofiber scaffolds, encompassing preparation methods, materials, fundamental research, and preclinical applications in the field of science, technology, and engineering. The existing challenges and prospects of electrospun nanofiber scaffolds in STE are also addressed.
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Affiliation(s)
- Jingwen Wu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
- Hangzhou CASbios Medical Company Hangzhou 310000, P. R. China
| | - Fenglin Yu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Mingfei Shao
- Hangzhou CASbios Medical Company Hangzhou 310000, P. R. China
| | - Tong Zhang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Weipeng Lu
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
- Hangzhou CASbios Medical Company Hangzhou 310000, P. R. China
| | - Xin Chen
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yihu Wang
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yanchuan Guo
- Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, Beijing 100190, P. R. China
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4
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Han W, Wang L, Sun J, Shi Y, Cui S, Yang D, Nie J, Ma G. Dual-Drug-Loaded Core-Shell Electrospun Nanofiber Dressing for Deep Burns. ACS APPLIED BIO MATERIALS 2024; 7:1179-1190. [PMID: 38215047 DOI: 10.1021/acsabm.3c01091] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
The epidermis of a deep burn wound is entirely absent and the dermal tissue sustains significant damage, accompanied by a substantial amount of tissue exudate. Due to the excessively humid environment, the formation of a scab on the wound becomes challenging, leaving it highly vulnerable to external bacterial invasion. In this work, a core-shell dual-drug-loaded nanofiber dressing was prepared by electrospinning technology for the synergistic treatment of a deep burn. The shell layer consists of polycaprolactone and chitosan encapsulating asiaticoside, with the core layer comprising the clathrate of 2-hydroxypropyl-β-cyclodextrin and curcumin. Upon application to the wound, the dual-drug-loaded nanofiber dressing exhibited rapid release of asiaticoside, stimulating collagen deposition and promoting tissue repair. The core-shell structure and clathrate configuration ensured sustained release of curcumin, providing antibacterial and anti-inflammatory functions for the wound. The mechanical strength, broad-spectrum antibacterial ability, cell proliferation, and adhesion ability of the nanofiber dressing showed its potential as a medical dressing. This dressing also exhibited excellent wound healing promoting effects in the SD rat burn model. This paper provides a strategy for burn wound healing.
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Affiliation(s)
- Weisen Han
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Liangyu Wang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jingxian Sun
- China Tobacco Shandong Industrial Co. LTD., Jinan 250000, P. R. China
| | - Yunchang Shi
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shuai Cui
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Dongzhi Yang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Jun Nie
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Guiping Ma
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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5
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Lee S, Baek SW, Kim DS, Park SY, Kim JH, Jung JW, Lee JK, Park GM, Park CG, Han DK. Injectable Microparticle-containing hydrogel with controlled release of bioactive molecules for facial rejuvenation. Mater Today Bio 2024; 24:100890. [PMID: 38162281 PMCID: PMC10755792 DOI: 10.1016/j.mtbio.2023.100890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/20/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024] Open
Abstract
The skin is the largest organ and a crucial barrier for protection against various intrinsic and extrinsic factors. As we age, the skin's components become more vulnerable to damage, forming wrinkles. Among different procedures, hyaluronic acid-based hydrogel has been extensively utilized for skin regeneration and reducing wrinkles. However, it has limitations like low retention and weak mechanical properties. In this study, we suggested the poly(l-lactic acid) (PLLA) microparticles containing alkaline magnesium hydroxide and nitric oxide-generating zinc oxide and rejuvenative hyaluronic acid (HA) hydrogels including these functional microparticles and asiaticoside, creating a novel delivery system for skin rejuvenation and regeneration. The fabricated rejuvenative hydrogels have exhibited enhanced biocompatibility, pH neutralization, reactive oxygen species scavenging, collagen biosynthesis, and angiogenesis capabilities in vitro and in vivo. Additionally, an excellent volume retention ability was demonstrated due to the numerous hydrogen bonds that formed between hyaluronic acid and asiaticoside. Overall, our advanced injectable hydrogel containing functional microparticles, with controlled release of bioactive molecules, has a significant potential for enhancing the regeneration and rejuvenation of the skin.
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Affiliation(s)
- Semi Lee
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
| | - Seung-Woon Baek
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyenggi 16419, South Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyenggi 16419, South Korea
| | - Da-Seul Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
| | - So-Yeon Park
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, South Korea
| | - Jun Hyuk Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
| | - Ji-Won Jung
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
| | - Jun-Kyu Lee
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
| | - Gi-Min Park
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyenggi 16419, South Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyenggi 16419, South Korea
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyenggi 13488, South Korea
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6
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Sánchez-Machado DI, Maldonado-Cabrera A, López-Cervantes J, Maldonado-Cabrera B, Chávez-Almanza AF. Therapeutic effects of electrospun chitosan nanofibers on animal skin wounds: A systematic review and meta-analysis. Int J Pharm X 2023; 5:100175. [PMID: 36950662 PMCID: PMC10025980 DOI: 10.1016/j.ijpx.2023.100175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/24/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023] Open
Abstract
Electrospun chitosan nanofibers (QSNFs) enhance the healing process by mimicking skin structure and function. The aim of this study was to analyze the therapeutic effects of QSNFs application on animal skin wounds to identify a potential direction for translational research in dermatology. The PRISMA methodology and the PICO scheme were used. A random effects model and mean difference analysis were applied for the meta-analysis. A meta-regression model was constructed, risk of bias was determined, and methodological quality assessment was performed. Of the 2370 articles collected, 54 studies were selected based on the inclusion and exclusion criteria. The wound healing area was used for building models on the 3rd, 7th, and 14th days of follow-up; the results were - 10.4% (95% CI, -18.2% to -2.6%, p = 0.001), -21.0% (95% CI, -27.3% to -14.7%, p = 0.001), and - 14.0% (95% CI, -19.1 to -8.8%, p = 0.001), respectively. Antioxidants and synthetic polymers combined with QSNFs further reduced skin wound areas (p < 0.05). The results show a more efficient reduction in wound area percentages in experimental groups than in control groups, so QSNFs could potentially be applied in translational human medicine research.
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Affiliation(s)
| | - Anahí Maldonado-Cabrera
- Technologic Institute of Sonora (ITSON), Ciudad Obregon MX-85000, Sonora, Mexico
- Mexican Social Security Institute (IMSS), Hermosillo MX-83000, Sonora, Mexico
| | - Jaime López-Cervantes
- Technologic Institute of Sonora (ITSON), Ciudad Obregon MX-85000, Sonora, Mexico
- Corresponding author.
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7
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Chhabra J, Chopra H, Pahwa R, Raina N, Wadhwa K, Saini S, Negi P, Gupta M, Singh I, Dureja H, Emran TB. Potential of nanoemulsions for accelerated wound healing: innovative strategies. Int J Surg 2023; 109:2365-2377. [PMID: 37158143 PMCID: PMC10442146 DOI: 10.1097/js9.0000000000000460] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 05/01/2023] [Indexed: 05/10/2023]
Abstract
Wounds represent various significant health concerns for patients and also contribute major costs to healthcare systems. Wound healing comprises of overlapped and various coordinated steps such as homeostasis, inflammation, proliferation, and remodeling. In response to the failure of many strategies in delivering intended results including wound closure, fluid loss control, and exhibiting properties such as durability, targeted delivery, accelerated action, along with histocompatibility, numerous nanotechnological advances have been introduced. To understand the magnitude of wound therapy, this systematic and updated review discussing the effectiveness of nanoemulsions has been undertaken. This review portrays mechanisms associated with wound healing, factors for delayed wound healing, and various technologies utilized to treat wounds effectively. While many strategies are available, nanoemulsions have attracted the tremendous attention of scientists globally for the research in wound therapy due to their long-term thermodynamic stability and bioavailability. Nanoemulsions not only aid in tissue repair, but are also considered as an excellent delivery system for various synthetic and natural actives. Nanotechnology provides several pivotal benefits in wound healing, including improved skin permeation, controlled release, and stimulation of fibroblast cell proliferation. The significant role of nanoemulsions in improved wound healing along with their preparation techniques has also been highlighted with special emphasis on mechanistic insights. This article illustrates recent research advancements for the utilization of nanoemulsions in wound treatment. An adequate literature search has been conducted using the keywords 'Nanoemulsions in wound healing', 'Wound therapy and nanoemulsions', 'Herbal actives in wound therapy', 'Natural oils and wounds treatment' etc., from PubMed, Science Direct, and Google Scholar databases. Referred and original publications in the English language accessed till April 2022 has been included, whereas nonEnglish language papers, unpublished data, and nonoriginal papers were excluded from the study.
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Affiliation(s)
- Jatin Chhabra
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Rakesh Pahwa
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra
| | - Neha Raina
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences & Research University, New Delhi
| | - Karan Wadhwa
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana
| | - Swati Saini
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra
| | - Poonam Negi
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, India
| | - Madhu Gupta
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences & Research University, New Delhi
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Harish Dureja
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, Bangladesh
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
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8
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Kumar M, Keshwania P, Chopra S, Mahmood S, Bhatia A. Therapeutic Potential of Nanocarrier-Mediated Delivery of Phytoconstituents for Wound Healing: Their Current Status and Future Perspective. AAPS PharmSciTech 2023; 24:155. [PMID: 37468691 DOI: 10.1208/s12249-023-02616-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/01/2023] [Indexed: 07/21/2023] Open
Abstract
The treatment of wounds is a serious problem all over the world and imposes a huge financial burden on each and every nation. For a long time, researchers have explored wound dressing that speeds up wound healing. Traditional wound dressing does not respond effectively to the wound-healing process as expected. Therapeutic active derived from plant extracts and extracted bioactive components have been employed in various regions of the globe since ancient times for the purpose of illness, prevention, and therapy. About 200 years ago, most medical treatments were based on herbal remedies. Especially in the West, the usage of herbal treatments began to wane in the 1960s as a result of the rise of allopathic medicine. In recent years, however, there has been a resurgence of interest in and demand for herbal medicines for a number of reasons, including claims about their efficacy, shifting consumer preferences toward natural medicines, high costs and negative side effects of modern medicines, and advancements in herbal medicines brought about by scientific research and technological innovation. The exploration of medicinal plants and their typical uses could potentially result in advanced pharmaceuticals that exhibit reduced adverse effects. This review aims to present an overview of the utilization of nanocarriers in plant-based therapeutics, including its current status, recent advancements, challenges, and future prospects. The objective is to equip researchers with a comprehensive understanding of the historical background, current state, and potential future developments in this emerging field. In light of this, the advantages of nanocarriers based delivery of natural wound healing treatments have been discussed, with a focus on nanofibers, nanoparticles, nano-emulsion, and nanogels.
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Affiliation(s)
- Mohit Kumar
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda, 151001, Punjab, India
| | - Puja Keshwania
- Department of Microbiology, Maharishi Markandeshwar Institute of Medical Sciences and Research, Mullana, Ambala, Haryana, 133207, India
| | - Shruti Chopra
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh, 201313, India
| | - Syed Mahmood
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Amit Bhatia
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda, 151001, Punjab, India.
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Kumar M, Hilles AR, Ge Y, Bhatia A, Mahmood S. A review on polysaccharides mediated electrospun nanofibers for diabetic wound healing: Their current status with regulatory perspective. Int J Biol Macromol 2023; 234:123696. [PMID: 36801273 DOI: 10.1016/j.ijbiomac.2023.123696] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/08/2023] [Accepted: 02/11/2023] [Indexed: 02/18/2023]
Abstract
The current treatment strategies for diabetic wound care provide only moderate degree of effectiveness; hence new and improved therapeutic techniques are in great demand. Diabetic wound healing is a complex physiological process that involves synchronisation of various biological events such as haemostasis, inflammation, and remodelling. Nanomaterials like polymeric nanofibers (NFs) offer a promising approach for the treatment of diabetic wounds and have emerged as viable options for wound management. Electrospinning is a powerful and cost-effective method to fabricate versatile NFs with a wide array of raw materials for different biological applications. The electrospun NFs have unique advantages in the development of wound dressings due to their high specific surface area and porosity. The electrospun NFs possess a unique porous structure and biological function similar to the natural extracellular matrix (ECM), and are known to accelerate wound healing. Compared to traditional dressings, the electrospun NFs are more effective in healing wounds owing to their distinct characteristics, good surface functionalisation, better biocompatibility and biodegradability. This review provides a comprehensive overview of the electrospinning procedure and its operating principle, with special emphasis on the role of electrospun NFs in the treatment of diabetic wounds. This review discusses the present techniques applied in the fabrication of NF dressings, and highlights the future prospects of electrospun NFs in medicinal applications.
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Affiliation(s)
- Mohit Kumar
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda 151001, Punjab, India
| | - Ayah R Hilles
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Yi Ge
- INHART, International Islamic University Malaysia, Jalan Gombak, 53100 Kuala Lumpur, Selangor, Malaysia
| | - Amit Bhatia
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University (MRSPTU), Bathinda 151001, Punjab, India
| | - Syed Mahmood
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, 50603 Kuala Lumpur, Malaysia.
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10
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Sharma A, Dheer D, Singh I, Puri V, Kumar P. Phytoconstituent-Loaded Nanofibrous Meshes as Wound Dressings: A Concise Review. Pharmaceutics 2023; 15:pharmaceutics15041058. [PMID: 37111544 PMCID: PMC10143731 DOI: 10.3390/pharmaceutics15041058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/12/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
In the past, wounds were treated with natural materials, but modern wound dressings include functional elements to expedite the process of healing and to improve skin recovery. Due to their exceptional properties, nanofibrous wound dressings are now the most cutting-edge and desirable option. Similar in structure to the skin’s own extracellular matrix (ECM), these dressings can promote tissue regeneration, wound fluid transportation, and air ductility for cellular proliferation and regeneration owing to their nanostructured fibrous meshes or scaffolds. Many academic search engines and databases, such as Google Scholar, PubMed, and Sciencedirect, were used to conduct a comprehensive evaluation of the literature for the purposes of this investigation. Using the term “nanofibrous meshes” as a keyword, this paper focuses on the importance of phytoconstituents. This review article summarizes the most recent developments and conclusions from studies on bioactive nanofibrous wound dressings infused with medicinal plants. Several wound-healing methods, wound-dressing materials, and wound-healing components derived from medicinal plants were also discussed.
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Affiliation(s)
- Ameya Sharma
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
| | - Divya Dheer
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, Punjab, India
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Vivek Puri
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
- Correspondence: (V.P.); (P.K.)
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2050, South Africa
- Correspondence: (V.P.); (P.K.)
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Narisepalli S, Salunkhe SA, Chitkara D, Mittal A. Asiaticoside polymeric nanoparticles for effective diabetic wound healing through increased collagen biosynthesis: In-vitro and in-vivo evaluation. Int J Pharm 2023; 631:122508. [PMID: 36539166 DOI: 10.1016/j.ijpharm.2022.122508] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Asiaticoside (AST) is a naturally available phytoconstituent that enables effective wound healing mainly by promoting collagen biosynthesis. However, the physicochemical nature of AST such as high molecular weight (959.12 g/mol), poor water solubility and poor permeability limits its therapeutic effects. This study aims to develop Asiaticoside polymeric nanoparticles (AST PNP) embedded in a gelatin based biodegradable hydrogel (15 % w/v) for application in the wound cavity to enable sustained release of AST and enhance its therapeutic effects. The AST PNP were fabricated in the desired size range (168.4 nm; PDI (0.09)) and the morphology, rate of fluid uptake, rate of water loss, and water vapor transmission rate of AST PNP incorporated hydrogel were determined. AST PNP gel showed porous structural morphology and possessed ideal characteristics as a graft for wound healing. The drug release kinetics and cellular uptake of AST PNP were investigated wherein, AST PNP demonstrated sustained release profile upto 24 h in comparison to free AST (complete release within 6 h) and exhibited an enhanced intra-cellular uptake in fibroblasts within 3 h compared to the free drug. In-vitrocell culture studies also demonstrated significant proliferation and migration of fibroblasts in the presence of AST PNP. Additionally, AST PNP gel upon application to the wounds of diabetic rats depicted improved wound healing efficacy in terms of improved collagen biosynthesis, upregulated COL-1 protein level (∼1.85 fold vs free AST), and enhanced expression of α-SMA compared to control groups. Altogether, formulation of AST as polymeric nanoparticles in a gel based carrier offered significant improvement in the therapeutic properties of AST for the management of diabetic wounds.
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Affiliation(s)
- Saibhargav Narisepalli
- Department of Pharmacy, Birla Institute of Technology and Science (BITS PILANI), Pilani, Rajasthan 333031, India
| | - Shubham A Salunkhe
- Department of Pharmacy, Birla Institute of Technology and Science (BITS PILANI), Pilani, Rajasthan 333031, India
| | - Deepak Chitkara
- Department of Pharmacy, Birla Institute of Technology and Science (BITS PILANI), Pilani, Rajasthan 333031, India
| | - Anupama Mittal
- Department of Pharmacy, Birla Institute of Technology and Science (BITS PILANI), Pilani, Rajasthan 333031, India; Department of Cellular and Molecular Biology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan.
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12
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Merzougui C, Miao F, Liao Z, Wang L, Wei Y, Huang D. Electrospun nanofibers with antibacterial properties for wound dressings. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:2165-2183. [PMID: 36001387 DOI: 10.1080/09205063.2022.2099662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
The antibacterial nanofibers have been proposed as an interesting material for wound healing management, since the majority of traditional wound dressings exhibit issues and complications such as infection, pain, discomfort, and poor adhesive proprieties. It allows the organism's passage through the dressing and delay the wound healing progression. Electrospun nanofibers have been intensively investigated for wound dressings in tissue engineering applications due to their distinctive features and structural similarities to the extracellular matrix including the various available methods to load the antibacterial compounds onto the nanofiber webs. To construct an effective electrospun wound dressing, various efforts have been made to design different strategies to develop advanced polymers, such as employing synthetic and/or natural materials, modifying fiber orientation, and incorporating chemicals and metallic nanoparticles (NPs) as intriguing materials for antibacterial bandages. Thus, this review summarizes the relevant recent studies on the production of electrospun antibacterial nanofibers from a wide variety of polymers used in biomedical applications for wound dressings.
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Affiliation(s)
- Chaima Merzougui
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Fenyan Miao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Ziming Liao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Longfei Wang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Yan Wei
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, P.R. China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Shanxi Key Laboratory of Materials Strength & Structural Impact, Taiyuan University of Technology, Taiyuan, P.R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, P.R. China
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13
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Tan G, Wang L, Pan W, Chen K. Polysaccharide Electrospun Nanofibers for Wound Healing Applications. Int J Nanomedicine 2022; 17:3913-3931. [PMID: 36097445 PMCID: PMC9464040 DOI: 10.2147/ijn.s371900] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/23/2022] [Indexed: 12/26/2022] Open
Abstract
As a type of biological macromolecule, natural polysaccharides have been widely used in wound healing due to their low toxicity, good biocompatibility, degradability and reproducibility. Electrospinning is a versatile and simple technique for producing continuous nanoscale fibers from a variety of natural and synthetic polymers. The application of electrospun nanofibers as wound dressings has made great progress and they are considered one of the most effective wound dressings. This paper reviews the preparation of polysaccharide nanofibers by electrospinning and their application prospects in the field of wound healing. A variety of polysaccharide nanofibers, including chitosan, starch, alginate, and hyaluronic acid are introduced. The preparation strategy of polysaccharide electrospun nanofibers and their functions in promoting wound healing are summarized. In addition, the future prospects and challenges for the preparation of polysaccharide nanofibers by electrospinning are also discussed.
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Affiliation(s)
- Guoxin Tan
- School of Pharmacy, Hainan University, Haikou, 570228, People's Republic of China
| | - Lijie Wang
- School of Pharmacy, Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Kai Chen
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou, 571199, People's Republic of China
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14
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Iliou K, Kikionis S, Ioannou E, Roussis V. Marine Biopolymers as Bioactive Functional Ingredients of Electrospun Nanofibrous Scaffolds for Biomedical Applications. Mar Drugs 2022; 20:md20050314. [PMID: 35621965 PMCID: PMC9143254 DOI: 10.3390/md20050314] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/30/2022] [Accepted: 05/01/2022] [Indexed: 02/01/2023] Open
Abstract
Marine biopolymers, abundantly present in seaweeds and marine animals, feature diverse structures and functionalities, and possess a wide range of beneficial biological activities. Characterized by high biocompatibility and biodegradability, as well as unique physicochemical properties, marine biopolymers are attracting a constantly increasing interest for the development of advanced systems for applications in the biomedical field. The development of electrospinning offers an innovative technological platform for the production of nonwoven nanofibrous scaffolds with increased surface area, high encapsulation efficacy, intrinsic interconnectivity, and structural analogy to the natural extracellular matrix. Marine biopolymer-based electrospun nanofibrous scaffolds with multifunctional characteristics and tunable mechanical properties now attract significant attention for biomedical applications, such as tissue engineering, drug delivery, and wound healing. The present review, covering the literature up to the end of 2021, highlights the advancements in the development of marine biopolymer-based electrospun nanofibers for their utilization as cell proliferation scaffolds, bioadhesives, release modifiers, and wound dressings.
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Preparation, biocompatibility, and wound healing effects of O-carboxymethyl chitosan nonwoven fabrics in partial-thickness burn model. Carbohydr Polym 2022; 280:119032. [PMID: 35027134 DOI: 10.1016/j.carbpol.2021.119032] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/16/2021] [Accepted: 12/17/2021] [Indexed: 02/08/2023]
Abstract
This study was aimed at preparing O-carboxymethyl chitosan (CM-CTS) fabrics, and examining the wound healing effects on partial-thickness burn. The functional polysaccharides were produced from chitosan needle-punched nonwovens reacted with chloroacetic acid. Then the biocompatibility and biological functions were evaluated through fibroblast L-929 and SD rats. CM-CTS fabrics were obtained with elongation at break more than 42%, tensile strength reaching 0.65 N/mm2, and water vapor transmission rate about 2600 g/m2∙24 h. Moreover, CM-CTS fabrics could effectively promote the mouse L-929 migration in vitro. CM-CTS fabrics yielded satisfactory results in angiogenesis, collagen deposition, interleukin-6 content, transforming growth factor level and healing rate, which were superior to the positive control and model groups after rats suffering with partial-thickness burn. In conclusion, CM-CTS fabrics possessed proper mechanical properties, air permeability, favorable biocompatibility, acceleration on fibroblasts migration and healing capacity for partial-thickness burn injury, and owned good potential as high-quality wound dressing.
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16
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Cui C, Sun S, Li X, Chen S, Wu S, Zhou F, Ma J. Optimizing the chitosan-PCL based membranes with random/aligned fiber structure for controlled ciprofloxacin delivery and wound healing. Int J Biol Macromol 2022; 205:500-510. [PMID: 35218801 DOI: 10.1016/j.ijbiomac.2022.02.118] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 12/12/2022]
Abstract
The aim of this study was to optimize the chitosan/polycaprolactone (CS/PCL) electrospun nanofibrous membrane with random/aligned fiber structures to provide a controlled release of ciprofloxacin (Cip) and guide skin fibroblasts arrangement. A series of Cip-encapsulated CS/PCL electrospun membranes were prepared by coaxial-electrospinning. The existence of Cip in core-shell structured fibers was confirmed by using SEM, TEM and FTIR characterizations. The in vitro drug-release profiles suggested that the Cip presented a sustained release for 15 days. Simultaneously, cyto-compatibility of the membranes decreased with the increasing amount of Cip from 2.0% to 5.0%. In particular, aligned CS/PCL membrane loading with 2.0% Cip exhibited a good balanced ability between cell proliferation and antibacterial effect (>99% against Escherichiacoli and Staphylococcus aureus), which significantly accelerated the wound healing process in vivo. These results suggested that the aligned CS/PCL membrane loading with 2.0% Cip exhibited great antibacterial property and biocompatibility, which possess promising applications potential for wound healing.
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Affiliation(s)
- Congjing Cui
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Shibin Sun
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Xueyan Li
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Shaojuan Chen
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Shaohua Wu
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Fang Zhou
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China.
| | - Jianwei Ma
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China
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17
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Multifunctional Biomimetic Nanofibrous Scaffold Loaded with Asiaticoside for Rapid Diabetic Wound Healing. Pharmaceutics 2022; 14:pharmaceutics14020273. [PMID: 35214006 PMCID: PMC8875374 DOI: 10.3390/pharmaceutics14020273] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/05/2022] [Accepted: 01/11/2022] [Indexed: 01/01/2023] Open
Abstract
Diabetes mellitus is a chronic disease with a high mortality rate and many complications. A non-healing diabetic foot ulcer (DFU) is one the most serious complications, leading to lower-extremity amputation in 15% of diabetic patients. Nanofibers are emerging as versatile wound dressing due to their unique wound healing properties, such as a high surface area to volume ratio, porosity, and ability to maintain a moist wound environment capable of delivering sustained drug release and oxygen supply to a wound. The present study was aimed to prepare and evaluate a polyvinyl alcohol (PVA)–sodium alginate (SA)–silk fibroin (SF)-based multifunctional nanofibrous scaffold loaded with asiaticoside (AT) in diabetic rats. The SEM findings showed that fibers’ diameters ranged from 100–200 nm, and tensile strengths ranged from 12.41–16.80 MPa. The crosslinked nanofibers were sustained AT over an extended period. The MTT and scratch assay on HaCat cells confirmed low cytotoxicity and significant cell migration, respectively. Antimicrobial tests revealed an excellent anti-microbial efficacy against P. aeruginosa and S. aureus bacteria. In-vivo study demonstrated better wound healing efficacy in diabetic rats. In addition, the histopathological studies showed its ability to restore the normal structure of the skin. The present study concluded that developed multifunctional nanofibers have a great potential for diabetic wound healing applications.
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18
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Nanofiber Systems as Herbal Bioactive Compounds Carriers: Current Applications in Healthcare. Pharmaceutics 2022; 14:pharmaceutics14010191. [PMID: 35057087 PMCID: PMC8781881 DOI: 10.3390/pharmaceutics14010191] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 12/31/2022] Open
Abstract
Nanofibers have emerged as a potential novel platform due to their physicochemical properties for healthcare applications. Nanofibers’ advantages rely on their high specific surface-area-to-volume and highly porous mesh. Their peculiar assembly allows cell accommodation, nutrient infiltration, gas exchange, waste excretion, high drug release rate, and stable structure. This review provided comprehensive information on the design and development of natural-based polymer nanofibers with the incorporation of herbal medicines for the treatment of common diseases and their in vivo studies. Natural and synthetic polymers have been widely used for the fabrication of nanofibers capable of mimicking extracellular matrix structure. Among them, natural polymers are preferred because of their biocompatibility, biodegradability, and similarity with extracellular matrix proteins. Herbal bioactive compounds from natural extracts have raised special interest due to their prominent beneficial properties in healthcare. Nanofiber properties allow these systems to serve as bioactive compound carriers to generate functional matrices with antimicrobial, anti-inflammatory, antioxidant, antiseptic, anti-viral, and other properties which have been studied in vitro and in vivo, mostly to prove their wound healing capacity and anti-inflammation properties.
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19
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Liu L, Ding Z, Yang Y, Zhang Z, Lu Q, Kaplan DL. Asiaticoside-laden silk nanofiber hydrogels to regulate inflammation and angiogenesis for scarless skin regeneration. Biomater Sci 2021; 9:5227-5236. [PMID: 34190240 PMCID: PMC8319114 DOI: 10.1039/d1bm00904d] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Scarless skin regeneration remains a challenge due to the complicated microenvironment involved in wound healing. Here, the hydrophobic drug, asiaticoside (AC), was loaded inside silk nanofiber hydrogels to achieve bioactive and injectable matrices for skin regeneration. AC was dispersed in aqueous silk nanofiber hydrogels with retention of biological functions that regulated inflammatory reactions and vascularization in vitro. After implantation in full-thickness wound defects, these AC-laden hydrogel matrices achieved scarless wound repair. Inflammatory reactions and angiogenesis were regulated during inflammation and remodeling, which was responsible for wound regeneration similar to normal skin. Both in vitro and in vivo studies demonstrated promising applications of these AC-laden silk hydrogels towards scarless tissue regeneration.
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Affiliation(s)
- Lutong Liu
- National Engineering Laboratory for Modern Silk &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215213, People's Republic of China.
| | - Zhaozhao Ding
- National Engineering Laboratory for Modern Silk &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215213, People's Republic of China.
| | - Yan Yang
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China.
| | - Zhen Zhang
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China.
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215213, People's Republic of China.
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, USA
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20
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Fabrication of Hybrid Nanofibers from Biopolymers and Poly (Vinyl Alcohol)/Poly (ε-Caprolactone) for Wound Dressing Applications. Polymers (Basel) 2021; 13:polym13132104. [PMID: 34206747 PMCID: PMC8271691 DOI: 10.3390/polym13132104] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 11/24/2022] Open
Abstract
The management of chronic wounds is challenging. The factors that impede wound healing include malnutrition, diseases (such as diabetes, cancer), and bacterial infection. Most of the presently utilized wound dressing materials suffer from severe limitations, including poor antibacterial and mechanical properties. Wound dressings formulated from the combination of biopolymers and synthetic polymers (i.e., poly (vinyl alcohol) or poly (ε-caprolactone) display interesting properties, including good biocompatibility, improved biodegradation, good mechanical properties and antimicrobial effects, promote tissue regeneration, etc. Formulation of these wound dressings via electrospinning technique is cost-effective, useful for uniform and continuous nanofibers with controllable pore structure, high porosity, excellent swelling capacity, good gaseous exchange, excellent cellular adhesion, and show a good capability to provide moisture and warmth environment for the accelerated wound healing process. Based on the above-mentioned outstanding properties of nanofibers and the unique properties of hybrid wound dressings prepared from poly (vinyl alcohol) and poly (ε-caprolactone), this review reports the in vitro and in vivo outcomes of the reported hybrid nanofibers.
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21
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Chen J, Wang H, Mei L, Wang B, Huang Y, Quan G, Lu C, Peng T, Pan X, Wu C. A pirfenidone loaded spray dressing based on lyotropic liquid crystals for deep partial thickness burn treatment: healing promotion and scar prophylaxis. J Mater Chem B 2021; 8:2573-2588. [PMID: 32147675 DOI: 10.1039/c9tb02929j] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A deep partial thickness (DPT) burn injury refers to burn damage involving the epidermis and major dermis, whose prognosis depends greatly on wound management. Lack of effective management can lead to an elongated healing process and aggravated scar formation, which can severely disturb patients, both physically and mentally. A dressing with good water absorption and moderate mechanical properties is crucial for healing promotion, and the prevention of scar formation is highly desirable. In this project, a hyaluronic acid combined lyotropic liquid crystal based spray dressing (HLCSD) loaded with the anti-fibrotic drug pirfenidone (PFD) has been designed. HLCSD is expected to achieve the goals of both wound healing promotion and scar prophylaxis. Its water absorption capacity, mechanical properties, drug release behavior and phase transition are fully evaluated. HLCSD possesses low viscosity for spray administration and high levels of water absorption for exudate absorption. An in situ gel composed of self-assembled lattice nanostructures provides excellent mechanical protection to promote the healing process and steady PFD release to exert a scar prophylaxis effect. The benefit of HLCSD on the wound healing rate is verified in vivo. In the DPT burn wound model we established, HLCSD also exhibits excellent healing promotion effects, and PFD-loaded HLCSD shows scar prophylaxis effects and displays an ideal prognosis, with skin as smooth as healthy skin. The healing promotion of HLCSD is considered to be related to the alleviation of inflammation, with an obviously shortened inflammation phase, with contributions from water management, mechanical protection and anti-inflammation by HLCSD. The scar prophylaxis of PFD-loaded HLCSD is proven to be related to the regulation of collagen synthesis and degradation, involving key cytokines like TGF-β and MMP-1. Taken together, the PFD-loaded HLCSD with healing promotion and scar prophylaxis offers significant promise as a spray dressing for DPT burn injuries.
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Affiliation(s)
- Jintian Chen
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China.
| | - Hui Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China.
| | - Liling Mei
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China.
| | - Bei Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China.
| | - Ying Huang
- School of Pharmacy, Jinan University, Guangzhou 510632, P. R. China.
| | - Guilan Quan
- School of Pharmacy, Jinan University, Guangzhou 510632, P. R. China.
| | - Chao Lu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China.
| | - Tingting Peng
- School of Pharmacy, Jinan University, Guangzhou 510632, P. R. China.
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China.
| | - Chuanbin Wu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China. and School of Pharmacy, Jinan University, Guangzhou 510632, P. R. China.
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22
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Nanotechnology Development for Formulating Essential Oils in Wound Dressing Materials to Promote the Wound-Healing Process: A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041713] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Wound healing refers to the replacement of damaged tissue through strongly coordinated cellular events. The patient’s condition and different types of wounds complicate the already intricate healing process. Conventional wound dressing materials seem to be insufficient to facilitate and support this mechanism. Nanotechnology could provide the physicochemical properties and specific biological responses needed to promote the healing process. For nanoparticulate dressing design, growing interest has focused on natural biopolymers due to their biocompatibility and good adaptability to technological needs. Polysaccharides are the most common natural biopolymers used for wound-healing materials. In particular, alginate and chitosan polymers exhibit intrinsic antibacterial and anti-inflammatory effects, useful for guaranteeing efficient treatment. Recent studies highlight that several natural plant-derived molecules can influence healing stages. In particular, essential oils show excellent antibacterial, antifungal, antioxidant, and anti-inflammatory properties that can be amplified by combining them with nanotechnological strategies. This review summarizes recent studies concerning essential oils as active secondary compounds in polysaccharide-based wound dressings.
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23
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Tiwari R, Tiwari G, Lahiri A, R V, Rai AK. Localized Delivery of Drugs through Medical Textiles for Treatment of Burns: A Perspective Approach. Adv Pharm Bull 2021; 11:248-260. [PMID: 33880346 PMCID: PMC8046402 DOI: 10.34172/apb.2021.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/12/2020] [Accepted: 07/15/2020] [Indexed: 12/15/2022] Open
Abstract
The topical delivery offers numerous benefits, such as the ability to deliver drugs specifically on site selectively, prevents fluctuations in the levels of the drug, improved compliance, and improved self-medication capacity. Skin is the main route of the administration of the drug delivery system (DDS) and burns mainly cause skin damage. A burn is a kind of damage caused to skin and tissues by fire, ice, electrical energy, pollutants, friction, and radiation. There are three different types of burns, including superficial epidermis burns, partial-thickness dermis that stretch to the papillary and reticular dermis, and full-thickness burns that cover the dermis whole. The objective of the present review article is to focus on fabrication techniques of medical textiles, different types of polymers used for designing medicated textiles, skin burn conditions, and application of medicated textiles for treatment of burn along with other applications. Cream, ointment, and gel are the dosage forms used in burns. Intravenous fluids, wound care, assorted antibiotics, surgical and alternative medicines, burned creams and salami, dressings can be used to treat wounds. Nanofibers are nanometer-specific fibers that encapsulate drugs inside them and cure wounds. Nanofibers have all the properties that speed up wound healing. The properties are mechanical integrity, proper timing of wound addiction, temperature homeostasis facilitation and gas exchange, absorption of exudates. The nanofibers have been used in burn care and have been highly efficient and non-toxic.
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Affiliation(s)
- Ruchi Tiwari
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kalpi Road, Bhauti, Kanpur-208020, India
| | - Gaurav Tiwari
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kalpi Road, Bhauti, Kanpur-208020, India
| | - Akanksha Lahiri
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kalpi Road, Bhauti, Kanpur-208020, India
| | - Vadivelan R
- Department of Pharmacology, JSS College of Pharmacy, Ooty-643001, India
| | - Awani K Rai
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kalpi Road, Bhauti, Kanpur-208020, India
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Li HL, Liu XT, Huang SM, Xiong YX, Zhang ZR, Zheng YH, Chen QX, Chen QH. Repair function of essential oil from Crocodylus Siamensis (Schneider, 1801) on the burn wound healing via up-regulated growth factor expression and anti-inflammatory effect. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113286. [PMID: 32827658 DOI: 10.1016/j.jep.2020.113286] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/22/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Crocodile oil has been used by traditional physicians around the world to treat wound healing and inflammation. However, the scientific rationale and mechanism behind its use in vivo has not been fully researched. AIMS OF THE STUDY We mainly investigated the mechanism during crocodile oil treatment of up-regulated growth factor expression and anti-inflammatory on burn wound healing in rats. MATERIALS AND METHODS The moisture and nitric oxide (NO) levels in the skin of rats were analyzed in the first 14 days after burn and the changes of the structure of the skin tissues in the wound healing were studied by hematoxylin-eosin (H.E.) staining within 21 days after scald. The inflammatory factor on burn wound healing in rats was dected by ELISA kits and Q-PCR. the expression of a variety of growth factors (TGF-β1, VEGE-α, EGF) and PCNA in the skin tissue after burns was evaluated using immunohistochemistry. The down-regulated phosphorylation of p38 MAPK in the wound healing was confirmed by Western-blot analysis. In addition, TEM was used to observe the ultrastructure of scalded skin. RESULTS This study showed that crocodile oil could significantly reduce the protein and mRNA levels of TNF-α, IL-1β and IL-6. And it was found that the phosphorylation of p38 MAPK was down-regulated in the wound healing (p < 0.05). Meanwhile, crocodile oil can promote the expression of a variety of growth factors (TGF-β1, VEGE-α, EGF) and PCNA in the skin tissue after burns, and promote the repair of collagen fibers in the dermis, preventing the production of melanin and maintain the appearance of repaired skin.
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Affiliation(s)
- Hua-Liang Li
- School of Life Sciences, Xiamen University, Xiamen, 361005, China; Fujian Tuolong Industrial Limited Company, Xiamen, 361026, China.
| | - Xiao-Tian Liu
- School of Life Sciences, Xiamen University, Xiamen, 361005, China.
| | - Shao-Min Huang
- Centre for Reproductive Medicine, The First Affiliated Hospital of Xiamen, China
| | - You-Xiong Xiong
- Fujian Tuolong Industrial Limited Company, Xiamen, 361026, China
| | - Zi-Ran Zhang
- Fujian Tuolong Industrial Limited Company, Xiamen, 361026, China
| | - Ya-Hui Zheng
- School of Life Sciences, Xiamen University, Xiamen, 361005, China
| | - Qing-Xi Chen
- School of Life Sciences, Xiamen University, Xiamen, 361005, China.
| | - Qiong-Hua Chen
- Centre for Reproductive Medicine, The First Affiliated Hospital of Xiamen, China.
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Cui C, Sun S, Wu S, Chen S, Ma J, Zhou F. Electrospun chitosan nanofibers for wound healing application. ENGINEERED REGENERATION 2021. [DOI: 10.1016/j.engreg.2021.08.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Ghiulai R, Roşca OJ, Antal DS, Mioc M, Mioc A, Racoviceanu R, Macaşoi I, Olariu T, Dehelean C, Creţu OM, Voicu M, Şoica C. Tetracyclic and Pentacyclic Triterpenes with High Therapeutic Efficiency in Wound Healing Approaches. Molecules 2020; 25:E5557. [PMID: 33256207 PMCID: PMC7730621 DOI: 10.3390/molecules25235557] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 02/06/2023] Open
Abstract
Wounds are among the most common skin conditions, displaying a large etiological diversity and being characterized by different degrees of severity. Wound healing is a complex process that involves multiple steps such as inflammation, proliferation and maturation and ends with scar formation. Since ancient times, a widely used option for treating skin wounds are plant- based treatments which currently have become the subject of modern pharmaceutical formulations. Triterpenes with tetracyclic and pentacyclic structure are extensively studied for their implication in wound healing as well as to determine their molecular mechanisms of action. The current review aims to summarize the main results of in vitro, in vivo and clinical studies conducted on lupane, ursane, oleanane, dammarane, lanostane and cycloartane type triterpenes as potential wound healing treatments.
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Affiliation(s)
- Roxana Ghiulai
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., 300041 Timişoara, Romania; (R.G.); (O.J.R.); (M.M.); (R.R.); (C.Ş.)
| | - Oana Janina Roşca
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., 300041 Timişoara, Romania; (R.G.); (O.J.R.); (M.M.); (R.R.); (C.Ş.)
| | - Diana Simona Antal
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., 300041 Timişoara, Romania
| | - Marius Mioc
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., 300041 Timişoara, Romania; (R.G.); (O.J.R.); (M.M.); (R.R.); (C.Ş.)
| | - Alexandra Mioc
- Department of Anatomy, Physiology, Pathophysiology, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., 300041 Timişoara, Romania;
| | - Roxana Racoviceanu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., 300041 Timişoara, Romania; (R.G.); (O.J.R.); (M.M.); (R.R.); (C.Ş.)
| | - Ioana Macaşoi
- Department of Toxicology, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd EftimieMurgu Sq., 300041 Timişoara, Romania; (I.M.); (C.D.)
| | - Tudor Olariu
- Department of Organic Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd EftimieMurgu Sq., 300041 Timişoara, Romania;
| | - Cristina Dehelean
- Department of Toxicology, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd EftimieMurgu Sq., 300041 Timişoara, Romania; (I.M.); (C.D.)
| | - Octavian Marius Creţu
- Department of Surgery, Faculty of Medicine, Victor Babeş University of Medicine and Pharmacy, 2nd EftimieMurgu Sq., 300041 Timişoara, Romania;
| | - Mirela Voicu
- Department of Pharmacology, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd EftimieMurgu Sq., 300041 Timişoara, Romania
| | - Codruţa Şoica
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Victor Babeş University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., 300041 Timişoara, Romania; (R.G.); (O.J.R.); (M.M.); (R.R.); (C.Ş.)
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Sharma A, Puri V, Kumar P, Singh I. Biopolymeric, Nanopatterned, Fibrous Carriers for Wound Healing Applications. Curr Pharm Des 2020; 26:4894-4908. [DOI: 10.2174/1381612826666200701152217] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/11/2020] [Indexed: 12/15/2022]
Abstract
Background:
Any sort of wound injury leads to skin integrity and further leads to wound formation.
Millions of deaths are reported every year, which contributes to an economical hamper world widely, this accounts
for 10% of death rate that insight into various diseases.
Current Methodology:
Rapid wound healing plays an important role in effective health care. Wound healing is a
multi-factorial physiological process, which helps in the growth of new tissue to render the body with the imperative
barrier from the external environment. The complexity of this phenomenon makes it prone to several abnormalities.
Wound healing, as a normal biological inherent process occurs in the body, which is reaped through four
highly defined programmed phases, such as hemostasis, inflammation, proliferation, and remodeling and these
phases occur in the proper progression. An overview, types, and classification of wounds along with the stages of
wound healing and various factors affecting wound healing have been discussed systematically. Various biopolymers
are reported for developing nanofibers and microfibers in wound healing, which can be used as a therapeutic
drug delivery for wound healing applications. Biopolymers are relevant for biomedical purposes owing to
biodegradability, biocompatibility, and non- toxicity. Biopolymers such as polysaccharides, proteins and various
gums are used for wound healing applications. Patents and future perspectives have been given in the concluding
part of the manuscript. Overall, applications of biopolymers in the development of fibers and their applications in
wound healing are gaining interest in researchers to develop modified biopolymers and tunable delivery systems
for effective management and care of different types of wounds.
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Affiliation(s)
- Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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Qiu H, Zhu S, Pang L, Ma J, Liu Y, Du L, Wu Y, Jin Y. ICG-loaded photodynamic chitosan/polyvinyl alcohol composite nanofibers: Anti-resistant bacterial effect and improved healing of infected wounds. Int J Pharm 2020; 588:119797. [DOI: 10.1016/j.ijpharm.2020.119797] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/28/2020] [Accepted: 08/18/2020] [Indexed: 01/09/2023]
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Samdavid Thanapaul RJR, Ranjan A, Manikandan SK, Nadar MSAM. Efficacy of Lobelia alsinoides Lam ethanolic extract on a third-degree burn: An experimental study on rats. Dermatol Ther 2020; 33:e14242. [PMID: 32860351 DOI: 10.1111/dth.14242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/11/2020] [Accepted: 08/21/2020] [Indexed: 02/02/2023]
Abstract
This is the first study to evaluate the topical application of Lobelia alsinoides Lam (LT) ethanolic extract on burns in rats. A deep third-degree burn wound was inflicted in adult male Wistar rats and the burns were dressed daily with a topical ointment formulation (Patent filed) comprising of Lobelia alsinoides Lam (5% and 10% w/w). The wound had noteworthy contraction and quicker eschar removal in 10% w/w LT-treated groups followed by 5% w/w treated groups on comparing with the commonly prescribed ointment (SilverexTM containing 1% w/w Silver sulfadiazine). Histopathological analysis showed that ointment containing 10% w/w LT ethanolic extract significantly increased fibroblast growth, which plays a major role in anatomic integrity, collagen synthesis, and accelerated the rate of the healing process. This study shows that the ethanolic extract of Lobelia alsinoides Lam, a previously pharmacologically unreported traditional medicinal plant, possesses wound contraction and eschar removal properties on burn wounds.
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Affiliation(s)
- Rex Jeya Rajkumar Samdavid Thanapaul
- Department of Surgery, Boston University School of Medicine, Boston, Massachusetts, USA.,Department of Biotechnology, Karunya Institute of Technology and Sciences (Deemed to be University), Coimbatore, Tamil Nadu, India
| | - Abraham Ranjan
- Department of Biotechnology, Karunya Institute of Technology and Sciences (Deemed to be University), Coimbatore, Tamil Nadu, India
| | - Sreeraj K Manikandan
- Department of Biotechnology, Karunya Institute of Technology and Sciences (Deemed to be University), Coimbatore, Tamil Nadu, India
| | - M S A Muthukumar Nadar
- Department of Biotechnology, Karunya Institute of Technology and Sciences (Deemed to be University), Coimbatore, Tamil Nadu, India
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Nazarnezhad S, Baino F, Kim HW, Webster TJ, Kargozar S. Electrospun Nanofibers for Improved Angiogenesis: Promises for Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1609. [PMID: 32824491 PMCID: PMC7466668 DOI: 10.3390/nano10081609] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 12/27/2022]
Abstract
Angiogenesis (or the development of new blood vessels) is a key event in tissue engineering and regenerative medicine; thus, a number of biomaterials have been developed and combined with stem cells and/or bioactive molecules to produce three-dimensional (3D) pro-angiogenic constructs. Among the various biomaterials, electrospun nanofibrous scaffolds offer great opportunities for pro-angiogenic approaches in tissue repair and regeneration. Nanofibers made of natural and synthetic polymers are often used to incorporate bioactive components (e.g., bioactive glasses (BGs)) and load biomolecules (e.g., vascular endothelial growth factor (VEGF)) that exert pro-angiogenic activity. Furthermore, seeding of specific types of stem cells (e.g., endothelial progenitor cells) onto nanofibrous scaffolds is considered as a valuable alternative for inducing angiogenesis. The effectiveness of these strategies has been extensively examined both in vitro and in vivo and the outcomes have shown promise in the reconstruction of hard and soft tissues (mainly bone and skin, respectively). However, the translational of electrospun scaffolds with pro-angiogenic molecules or cells is only at its beginning, requiring more research to prove their usefulness in the repair and regeneration of other highly-vascularized vital tissues and organs. This review will cover the latest progress in designing and developing pro-angiogenic electrospun nanofibers and evaluate their usefulness in a tissue engineering and regenerative medicine setting.
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Affiliation(s)
- Simin Nazarnezhad
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran;
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Hae-Won Kim
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan 31116, Korea;
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, Cheonan 31116, Korea
| | - Thomas J. Webster
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA;
| | - Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran;
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Glucantime-loaded electrospun core-shell nanofibers composed of poly(ethylene oxide)/gelatin-poly(vinyl alcohol)/chitosan as dressing for cutaneous leishmaniasis. Int J Biol Macromol 2020; 163:288-297. [PMID: 32610052 DOI: 10.1016/j.ijbiomac.2020.06.240] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 06/17/2020] [Accepted: 06/25/2020] [Indexed: 01/18/2023]
Abstract
Leishmaniasis, one of the main concerns of the World Health Organization, is a parasitic disease caused by Leishmania species. The main objective of this study was to prepare a topical drug delivery system that can deliver glucantime to the site of cutaneous Leishmania wounds. Using the electrospinning method, a core-shell nanofibrous mat composed of macromolecules including polyethylene oxide, gelatin, poly (vinyl alcohol) and chitosan was prepared. The prepared nanofibers were characterized by scanning electron microscopy (SEM), transmission electron microscopy, Fourier transform infrared spectroscopy (FT-IR), tensile test and in vitro drug release test. The anti-Leishmania activities of drug-loaded nanofibers against Leishmania promastigotes and its cytotoxicity on fibroblasts were determined respectively by flow-cytometry and indirect MTT methods. Results of morphological studies showed that uniform nanofibers were prepared without any bead with average diameter of 404 nm. The TEM investigation confirmed the core-shell structure of the fibers. The in-vitro drug release assay was executed using Franz diffusion cell, which indicted 84% of glucantime was released during the first 9 h. The results indicated that 4 and 6 cm2 of nanofibers mat were significantly killed promatigotes up to 78%. Moreover, the MTT assay also showed that the fabricated nanofibers do not possess any cytotoxicity towards fibroblast cells.
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Juncos Bombin AD, Dunne NJ, McCarthy HO. Electrospinning of natural polymers for the production of nanofibres for wound healing applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:110994. [PMID: 32993991 DOI: 10.1016/j.msec.2020.110994] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/16/2020] [Accepted: 04/18/2020] [Indexed: 02/07/2023]
Abstract
Wound healing is a highly regulated process composed of four overlapping phases: (1) coagulation/haemostasis, (2) inflammation, (3) proliferation and (4) remodelling. Comorbidities such as advanced age, diabetes and obesity can impair natural tissue repair, rendering the wound in a pathological state of inflammation. This results in significant discomfort for patients and considerable financial costs for healthcare systems. Due to the complex nature of wound healing, current treatments are ineffective at dealing with delayed healing. With flexible properties that can be tailored, nanomaterials have emerged as alternative therapeutics for many biomedical applications. A nanofibrous network can be made via electrospinning polymers using a high electric field to create a responsive meshwork that can be used as a medical dressing. A nanofibrous device has properties that can overcome the limitations of traditional dressings, such as: (1) adaptability to wound contour; (2) controlled drug delivery of therapeutics; (3) gaseous exchange; (4) exudate absorption and (5) surface functionalisation to further enhance the biological activity of the dressing. This review details emerging trends in nanotechnology to specifically target wound healing applications. Particular focus is given to the most common natural polymers that could address many unmet healthcare needs.
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Affiliation(s)
| | - Nicholas J Dunne
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland; Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin, Ireland.; Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland.; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland..
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
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Yu Z, Liu X, Chen H, Zhu L. Naringenin-Loaded Dipalmitoylphosphatidylcholine Phytosome Dry Powders for Inhaled Treatment of Acute Lung Injury. J Aerosol Med Pulm Drug Deliv 2020; 33:194-204. [PMID: 32176552 DOI: 10.1089/jamp.2019.1569] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Acute lung injury is a severe respiratory disorder characterized by overwhelming lung inflammation. Dipalmitoylphosphatidylcholine (DPPC) is the major lipid component of pulmonary surfactant, which here acts as a carrier delivery system for drugs, while also preserving surface tension in the lung. The clinical development of naringenin (NG) is limited by its low solubility and bioavailability. Methods: Novel NG-loaded DPPC phytosomes for dry powder inhalation (NPDPIs) were prepared by solvent evaporation and a freeze-drying method. The particle size, electric potential, in vitro release, and lung deposition were characterized. A rat model of acute lung injury was established and used for pharmacodynamic evaluations. Results: A mixture of NG/DPPC 1:2 (w/w) formed stable phytosomes with the addition of appropriate ethanol. The phytosomes had high complexation efficiency (92.1% ± 1.87%) with NG, a small mean size (150.8 ± 6.9 nm), and a high zeta potential (20.97 ± 0.55 mV). NPDPIs composed of mannitol/DPPC/NG (4:2:1, w/w/w) presented a satisfactory appearance, good fluidity, quick reconstitution to naringenin phytosomes (NGPs), and small (167.2 nm) reconstituted NGPs. The aerodynamic diameter (12.48 μm) and fine particle fraction (23.90%) were suitable for pulmonary delivery by inhalation. The in vivo NPDPIs demonstrated efficacy in a rat model of acute lung injury. NPDPIs significantly inhibited the phosphorylation of P38 in the mitogen-activated protein kinase pathway and suppressed oxidative stress. Surprisingly, the DPPC vehicle exhibited potential effects against acute lung injury by protecting respiratory function. Conclusions: NPDPIs were developed for sustained drug release, promoting pulmonary bioavailability of drug and protecting against acid-induced acute lung injury in rats by pulmonary delivery. NPDPIs are a promising dry powder inhaler for clinical application in acute lung injury.
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Affiliation(s)
- Zicheng Yu
- Institute of Clinical Pharmacy and Pharmacology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaoyan Liu
- Department of Pharmacy, Shanghai United Family Pudong Hospital, Shanghai, China
| | - Hongjun Chen
- Institute of Clinical Pharmacy and Pharmacology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lifei Zhu
- Institute of Clinical Pharmacy and Pharmacology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
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Chen W, Li R, Zhu S, Ma J, Pang L, Ma B, Du L, Jin Y. Nasal timosaponin BII dually sensitive in situ hydrogels for the prevention of Alzheimer's disease induced by lipopolysaccharides. Int J Pharm 2020; 578:119115. [PMID: 32045690 DOI: 10.1016/j.ijpharm.2020.119115] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/13/2020] [Accepted: 02/01/2020] [Indexed: 02/01/2023]
Abstract
Alzheimer's disease (AD) is a common and severe brain disease with a high mortality among the elders, but no highly efficient medications are currently available. For example, timosaponin BII, an efficient anti-AD agent, has low oral bioavailability. Here, timosaponin BII was formulated in a temperature/ion-sensitive in situ hydrogel (ISG) that was well transformed into gels in the nasal environment. Timosaponin BII protected the PC12 cells injured by lipopolysaccharides (LPS) by decreasing TNF-α and IL-1β and stabilizing F-actin. Timosaponin BII ISGs were intranasally administered to the mice every day for 38 days. On Day 36, LPS was injected to the mice to establish an AD model. Morris water maze experiments showed that the number of the animals that were able to cross the platform returned to normal and the total distance over which the animals moved in the open field also increased, which demonstrated that the spatial memory and spontaneous behavior were improved after treatment compared to the model. Moreover, an AD improver, inducible nitric oxide synthase (iNOS) in the brain, was reduced after treatment. High brain targeting effect of timosaponin BII ISGs was confirmed by in vivo fluorescence imaging. The nasal timosaponin BII dually sensitive ISGs can serve as a promising medication for local prevention of AD.
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Affiliation(s)
- Wenyuan Chen
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Ruiteng Li
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Siqing Zhu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; Anhui Medical University, Hefei 230032, China
| | - Jinqiu Ma
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Lulu Pang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Baiping Ma
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lina Du
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Anhui Medical University, Hefei 230032, China.
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; Anhui Medical University, Hefei 230032, China.
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Zhang C, Chen S, Zhang Z, Xu H, Zhang W, Xu D, Lin B, Mei Y. Asiaticoside Alleviates Cerebral Ischemia-Reperfusion Injury via NOD2/Mitogen-Activated Protein Kinase (MAPK)/Nuclear Factor kappa B (NF-κB) Signaling Pathway. Med Sci Monit 2020; 26:e920325. [PMID: 32006420 PMCID: PMC7009775 DOI: 10.12659/msm.920325] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (CIRI) remains a serious health problem. Centella asiatica formulations are used to treat central nervous system disorders. In the present study, asiaticoside, an extract of the plant Centella asiatica, was investigated in CIRI in vivo and vitro. MATERIAL AND METHODS We made a CIRI model in vivo in SD rats treated by middle cerebral artery occlusion, and a cell model of ischemia-reperfusion injury was made in PC12 cells treated by deprivation of oxygen and glucose/restoration. CIRI in vivo was assessed by scores of neurological functions, encephaledema, and cerebral infarction area. Inflammation level and oxidative stress level were detected by the appropriate kits. TUNEL assay was performed for assessment of cell apoptosis and Western blot analysis was performed to assess protein expression levels. CCK8 assay was performed for evaluation of cell survival and flow cytometer was used to detect cell apoptosis in vitro. RESULTS Nervous function injury, brain edema, cell apoptosis, infarct size, apoptosis-related protein expressions, and protein expressions of the NOD2/MAPK/NF-kappaB signaling pathway in the CIRI model were all reversed by asiaticoside in rats. The cell apoptosis, inflammation level, and oxidative stress level in the model of cerebral ischemia-reperfusion injury were reduced by asiaticoside. The effects of asiaticoside on CIRI were reversed by NOD 2 agonists. CONCLUSIONS Asiaticoside showed a protective effect against cerebral ischemia-reperfusion injury via the NOD2/MAPK/NF-kappaB signaling pathway. These findings are vital for future research on use of asiaticoside in CIRI, providing a new avenue for alleviating CIRI.
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Affiliation(s)
- Chunhui Zhang
- Department of Clinical Nursing, Nursing and Health College of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Suyan Chen
- Department of Public Nursing, Nursing and Health College of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Zhenxiang Zhang
- Department of Fundamental Nursing, Nursing and Health College of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Hui Xu
- Department of Fundamental Nursing, Nursing and Health College of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Weihong Zhang
- Department of Basic Medicine, Nursing and Health College of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Dongqing Xu
- Rehabilitation Department, Henan Province Hospital of Traditional Chinese Medicine (TCM), Zhengzhou, Henan, China (mainland)
| | - Beilei Lin
- Department of Clinical Nursing, Nursing and Health College of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Yongxia Mei
- Department of Public Nursing, Nursing and Health College of Zhengzhou University, Zhengzhou, Henan, China (mainland)
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Moeini A, Pedram P, Makvandi P, Malinconico M, Gomez d'Ayala G. Wound healing and antimicrobial effect of active secondary metabolites in chitosan-based wound dressings: A review. Carbohydr Polym 2020; 233:115839. [PMID: 32059889 DOI: 10.1016/j.carbpol.2020.115839] [Citation(s) in RCA: 346] [Impact Index Per Article: 86.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/06/2020] [Accepted: 01/06/2020] [Indexed: 02/06/2023]
Abstract
Wound healing can lead to complex clinical problems, hence finding an efficient approach to enhance the healing process is necessary. An ideal wound dressing should treat wounds at reasonable costs, with minimal inconveniences for the patient. Chitosan is one of the most investigated biopolymers for wound healing applications due to its biocompatibility, biodegradability, non-toxicity, and antimicrobial activity. Moreover, chitosan and its derivative have attracted numerous attentions because of the accelerating wound healing, and easy processability into different forms (gels, foams, membranes, and beads). All these properties make chitosan-based materials particularly versatile and promising for wound dressings. Besides, secondary natural metabolites could potentially act like the antimicrobial and anti-inflammatory agents and accelerate the healing process. This review collected almost all studies regarding natural compounds applications in wound healing by focusing on the chitosan-based bioactive wound dressing systems. An accurate analysis of different chitosan formulations and the influence of bioactive compounds on their wound healing properties are reported.
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Affiliation(s)
- Arash Moeini
- Department of Chemical Sciences, Universityof Naples "Federico II", Italy.
| | - Parisa Pedram
- Department of Chemical, Materialsand Industrial Production Engineering, University of Naples Federico II, Italy; Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB), Italy
| | - Pooyan Makvandi
- Institute for Polymers, Composites and Biomaterials, National Research Council, Italy; Department of Medical Nanotechnology, Faculty of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mario Malinconico
- Institute for Polymers, Composites and Biomaterials, National Research Council, Italy
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Nie X, Zhang H, Shi X, Zhao J, Chen Y, Wu F, Yang J, Li X. Asiaticoside nitric oxide gel accelerates diabetic cutaneous ulcers healing by activating Wnt/β-catenin signaling pathway. Int Immunopharmacol 2019; 79:106109. [PMID: 31865242 DOI: 10.1016/j.intimp.2019.106109] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 11/25/2019] [Accepted: 11/29/2019] [Indexed: 12/23/2022]
Abstract
Diabetic ulcers, gangrene, local infections and other traumatic symptoms of wound healing are all directly related. Promoting the early healing of diabetic cutaneous ulcers (DCU) and reducing the disability and treatment costs is an important research project integrating traditional Chinese and Western medicine. Nitric oxide (NO) is a key component of wound healing, and endogenous NO secretion is insufficient during the development of DCU. It has been reported that exogenous NO can promote wound healing, but exogenous NO has a short half-life and is difficult to adhere to the skin. Asiaticoside (AC) is extracted from the traditional Chinese medicine Centella asiatica, and has angiogenic, anticancer, antioxidant, anti-inflammatory, and wound-healing effects. Therefore, our study is based on the hypothesis that the combination of AC and NO to treat DCU is possible. In this study we considered gels of AC and NO, and evaluated the effects of the gel on DCU healing. Based on our study, it was found that the combined effect of asiaticoside and NO could accelerate the healing rate of DCU wounds. The asiaticoside NO gel can inhibit the growth of bacteria in the wound surface, alleviate the inflammatory reaction of wound, and increase the expression of VEGF, iNOS, eNOS and CD34. Our research shows that asiaticoside NO gel may promote DCU wound healing by regulating Wnt/β-Catenin signaling pathway. It will provide new targets and strategies for the diagnosis and treatment of DCU.
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Affiliation(s)
- Xuqiang Nie
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing 400038, China; College of Pharmacy, Zunyi Medical University, Zunyi 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China.
| | - Han Zhang
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Xiujun Shi
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Jiufeng Zhao
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Yu Chen
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Faming Wu
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Jianwen Yang
- Pharmacy Department, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - Xiaohui Li
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing 400038, China.
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Li W, Cicek N, Levin DB, Logsetty S, Liu S. Bacteria-triggered release of a potent biocide from core-shell polyhydroxyalkanoate (PHA)-based nanofibers for wound dressing applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 31:394-406. [PMID: 31722618 DOI: 10.1080/09205063.2019.1693882] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Bacterial infections are a serious issue in wound healing. Extensive use of biocides in wound dressings have raised concerns of biocide resistance and unnecessary harm to normal skin cells. In this paper, we report a new approach to realize bacteria-triggered release of a biocide to the sites of bacterial infections from core-shell polyhydroxyalkanoate (PHA)-based nanofibers prepared by coaxial electrospinning. The hydrophobic PHA-based shell can prevent the biocide from undesirable payload release in physiological environments without pathogens. However, in the presence of pathogens, the PHA-based shell is degraded by the pathogens, and the encapsulated biocide is released. The released biocide subsequently can exert targeted antimicrobial effects on the bacteria. Using Pseudomonas aeruginosa as a model bacterium and dodecyltrimethylammonium chloride as a model biocide, we demonstrated that the core-shell PHA-based nanofibers effectively released encapsulated dodecyltrimethylammonium chloride in the presence of Pseudomonas aeruginosa, resulting in targeted inactivation of Pseudomonas aeruginosa cells.HighlightsUnique core-shell nanofibers were successfully fabricated from PHAs generated by bacteria.An on-demand release of biocide was achieved from a PHA-based core-shell nanofibours membrane.The membrane's mechanical properties closely match those of the human skin.
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Affiliation(s)
- Wei Li
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
| | - Nazim Cicek
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
| | - David B Levin
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
| | - Sarvesh Logsetty
- Department of Surgery, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Song Liu
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
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Huang J, Zhou X, Shen Y, Li H, Zhou G, Zhang W, Zhang Y, Liu W. Asiaticoside loading into polylactic-co-glycolic acid electrospun nanofibers attenuates host inflammatory response and promotes M2 macrophage polarization. J Biomed Mater Res A 2019; 108:69-80. [PMID: 31496042 DOI: 10.1002/jbm.a.36793] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/17/2019] [Accepted: 09/04/2019] [Indexed: 12/27/2022]
Abstract
Polylactic-co-glycolic acid (PLGA) is one of the most promising synthetic materials for tissue engineering due to its excellent biocompatibility, good mechanical properties, and tunable biodegradation time. However, the accumulation of PLGA degradative products could cause significant host inflammatory response, a microenvironment favoring tissue fibrosis that is mainly mediated by M1 subtype macrophage. Drug loading is an emerging technology to modify electrospun nanofibers, and asiaticoside (AS) was demonstrated as an anti-inflammatory drug. This study investigated the potential effect of AS incorporating into PLGA electrospun nanofibers on modulating host inflammatory response. The results showed that AS co-electrospun with PLGA nanofibers could significantly reduce the infiltration of inflammatory cells at the implantation site as opposed to the site of regular PLGA nanofibers. In particular, immunohistochemistry demonstrated decreased M1 macrophage infiltration whereas increased M2 macrophage infiltration in the implantation site of AS-PLGA nanofibers when compared to the PLGA implantation site. In vitro study also revealed that culture of human fibroblasts on PLGA nanofibers resulted in significantly enhanced gene expression of inflammatory cytokines when compared to non-seeded fibroblasts, but these genes were significantly downregulated when seeded on AS-PLGA. Furthermore, culture of macrophage on AS-PLGA led to upregulated M2 marker gene expression and downregulated M1 marker gene expression. Collectively, these results indicate that, AS might be an ideal drug for loading into electrospun polymer nanofibers and thus favoring for tissue regeneration via mediating macrophage polarization.
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Affiliation(s)
- Jia Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering Research, Shanghai, China
| | - Xiaobo Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering Research, Shanghai, China
| | - Yanbing Shen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Haibo Li
- Xiangya Medical College of Central South University, Changsha, Hunan, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering Research, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China
| | - Wenjie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering Research, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China
| | - Yanzhong Zhang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China.,State Key Laboratory for Modification of Chemical Nanofibers and Polymer Materials, Donghua University, Shanghai, China.,Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai, China
| | - Wei Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering Research, Shanghai, China.,National Tissue Engineering Center of China, Shanghai, China
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Feng Y, Huang Y, Wang Y, Wang P, Wang F. Severe burn injury alters intestinal microbiota composition and impairs intestinal barrier in mice. BURNS & TRAUMA 2019; 7:20. [PMID: 31312663 PMCID: PMC6610819 DOI: 10.1186/s41038-019-0156-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 04/15/2019] [Indexed: 02/08/2023]
Abstract
Background The intestinal barrier integrity is crucial for maintaining intestinal homeostasis, and the mechanisms of intestinal barrier disruption induced by burn injury remain obscure. This study was aimed to investigate the changes of intestinal microbiota and barrier function in burned mice to further comprehend the mechanisms of burn-induced intestinal barrier dysfunction. Methods Samples were from mice inflicted with 30% total body surface area (TBSA) full-thickness burns. The intestinal permeability, tight junction proteins expressions, zonula occludens-1 (ZO-1) localization, inflammatory cytokines expressions, and short-chain fatty acids (SCFAs) contents were determined. The microbial community was assessed via 16S rDNA Illumina sequencing. Results The intestinal permeability was increased after severe burn injury, peaking at 6 h post-burn, with approximately 20-folds of the control (p < 0.001). The expression of tight junction proteins (ZO-1, occludin, claudin-1, and claudin-2) was significantly altered (p < 0.05). The ZO-1 morphology was dramatically changed following burn injury. The fecal SCFAs’ contents (acetate, propionate, butyrate, isobutyrate, and isovalerate) were noticeably declined after burn injury (p < 0.05). The expressions of pro-inflammatory cytokines (interleukin (IL)-1β and IL-6) in ileal mucosa were increased, whereas the expressions of anti-inflammatory cytokines (IL-4 and IL-13) were decreased following burn injury (p < 0.05). In addition, burned mice showed an alteration of intestinal microbial community, such as decreased diversity, reduced Bacteroidetes abundance, and increased Firmicutes abundance. Conclusions The severe burn-induced intestinal barrier dysfunction is along with the alterations of microbial community. Electronic supplementary material The online version of this article (10.1186/s41038-019-0156-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yanhai Feng
- 1State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), 30 Gaotanyan Street, Chongqing, 400038 China
| | - Yalan Huang
- 2Department of Military Nursing, School of Nursing, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yu Wang
- 3Department of Gastroenterology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Pei Wang
- 1State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), 30 Gaotanyan Street, Chongqing, 400038 China
| | - Fengjun Wang
- 1State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), 30 Gaotanyan Street, Chongqing, 400038 China
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Fahimirad S, Ajalloueian F. Naturally-derived electrospun wound dressings for target delivery of bio-active agents. Int J Pharm 2019; 566:307-328. [PMID: 31125714 DOI: 10.1016/j.ijpharm.2019.05.053] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 12/30/2022]
Abstract
Electrospun nanofibers are known as the advanced means for wound dressing. They have represented remarkable potency to encapsulate and deliver biomolecules promoting the wound healing process. Compared to synthetic polymers, naturally derived polymers (NDP) are more qualified candidates for fabrication of biomedical electrospun scaffolds. Not only nanofibers of NDP illustrate higher biocompatibility and biodegradability rates, but also they mimic the native extracellular matrix more closely, which leads to the wound closure acceleration by enhancing tissue regeneration. Aside, incorporation of bioactive molecules and therapeutic agents into the nanofibers can generate innovative bioactive wound dressings with significantly improved healing potentials. This paper starts with a brief discussion on the steps and factors influencing the wound healing process. Then, the recent applications of electrospun nanofibers as wound dressing with healing accelerating properties are reviewed. Further, the various healing agents and alternative strategies for modification and functionalization of bioactive naturally-derived electrospun nanofibers are discussed.
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Affiliation(s)
- Shohreh Fahimirad
- Agriculture and Natural Resources Biotechnology Department, University of Tehran, Karaj 31587-11167, Iran.
| | - Fatemeh Ajalloueian
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby 2800, Denmark
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de Matos SP, Teixeira HF, de Lima ÁAN, Veiga-Junior VF, Koester LS. Essential Oils and Isolated Terpenes in Nanosystems Designed for Topical Administration: A Review. Biomolecules 2019; 9:biom9040138. [PMID: 30959802 PMCID: PMC6523335 DOI: 10.3390/biom9040138] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 12/16/2022] Open
Abstract
Essential oils are natural products with a complex composition. Terpenes are the most common class of chemical compounds present in essential oils. Terpenes and the essential oils containing them are widely used and investigated by their pharmacological properties and permeation-enhancing ability. However, many terpenes and essential oils are sensitive to environmental conditions, undergoing volatilization and chemical degradation. In order to overcome the chemical instability of some isolated terpenes and essential oils, the encapsulation of these compounds in nanostructured systems (polymeric, lipidic, or molecular complexes) has been employed. In addition, nanoencapsulation can be of interest for pharmaceutical applications due to its capacity to improve the bioavailability and allow the controlled release of drugs. Topical drug administration is a convenient and non-invasive administration route for both local and systemic drug delivery. The present review focuses on describing the current status of research concerning nanostructured delivery systems containing isolated terpenes and/or essential oils designed for topical administration and on discussing the use of terpenes and essential oils either for their biological activities or as permeation enhancers in pharmaceutic formulations.
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Affiliation(s)
- Sheila P de Matos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000, Brazil.
| | - Helder F Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, Av. General Cordeiro de Farias, s/n, Petrópolis, Natal 59012-570, Brazil.
| | - Ádley A N de Lima
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, Av. General Cordeiro de Farias, s/n, Petrópolis, Natal 59012-570, Brazil.
| | - Valdir F Veiga-Junior
- Departamento de Engenharia Química, Instituto Militar de Engenharia, Praça Gen. Tibúrcio, 80, Praia Vermelha, Urca, Rio de Janeiro 22290-270, Brazil.
| | - Letícia S Koester
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000, Brazil.
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Tyo KM, Minooei F, Curry KC, NeCamp SM, Graves DL, Fried JR, Steinbach-Rankins JM. Relating Advanced Electrospun Fiber Architectures to the Temporal Release of Active Agents to Meet the Needs of Next-Generation Intravaginal Delivery Applications. Pharmaceutics 2019; 11:E160. [PMID: 30987206 PMCID: PMC6523330 DOI: 10.3390/pharmaceutics11040160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 02/07/2023] Open
Abstract
Electrospun fibers have emerged as a relatively new delivery platform to improve active agent retention and delivery for intravaginal applications. While uniaxial fibers have been explored in a variety of applications including intravaginal delivery, the consideration of more advanced fiber architectures may offer new options to improve delivery to the female reproductive tract. In this review, we summarize the advancements of electrospun coaxial, multilayered, and nanoparticle-fiber architectures utilized in other applications and discuss how different material combinations within these architectures provide varied durations of release, here categorized as either transient (within 24 h), short-term (24 h to one week), or sustained (beyond one week). We seek to systematically relate material type and fiber architecture to active agent release kinetics. Last, we explore how lessons derived from these architectures may be applied to address the needs of future intravaginal delivery platforms for a given prophylactic or therapeutic application. The overall goal of this review is to provide a summary of different fiber architectures that have been useful for active agent delivery and to provide guidelines for the development of new formulations that exhibit release kinetics relevant to the time frames and the diversity of active agents needed in next-generation multipurpose applications.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
| | - Farnaz Minooei
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Keegan C Curry
- Department of Biology, University of Louisville, Louisville, KY 40292, USA.
| | - Sarah M NeCamp
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Danielle L Graves
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Joel R Fried
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Jill M Steinbach-Rankins
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
- Department of Microbiology and Immunology, School of Medicine, University of Louisville, Louisville, KY 40292, USA.
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Feng X, Huang D, Lin D, Zhu L, Zhang M, Chen Y, Wu F. Effects of Asiaticoside Treatment on the Survival of Random Skin Flaps in Rats. J INVEST SURG 2019; 34:107-117. [PMID: 30898065 DOI: 10.1080/08941939.2019.1584255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background: Asiaticoside (AS) is extracted from the traditional herbal medicine Centella asiatica, and has angiogenic, antioxidant, anti-inflammatory, and wound-healing effects. We investigated the effects of AS on skin flap survival. Methods: Dorsal McFarlane flaps were harvested from 36 rats and divided into two groups: an experimental group treated with 40 mg/kg AS administered orally once daily, and a control group administered normal saline in an identical manner. On day 2, superoxide dismutase (SOD) and malondialdehyde (MDA) levels, and production of the cytokines tumor necrosis factor-α and interleukin (IL)-6 were evaluated. On day 7, tissue slices were stained with hematoxylin and eosin. The expression of vascular endothelial growth factor (VEGF), IL-6, and IL-1β were immunohistochemically evaluated. Microcirculatory flow was measured using laser Doppler flowmetry. Flap angiography, using the lead oxide-gelatin injection technique, was performed with the aid of a soft X-ray machine. Results: The AS group exhibited greater mean flap survival area, improved microcirculatory flow, and higher expression levels of SOD and VEGF compared with the control group. However, MDA levels and the inflammatory response were significantly reduced. Conclusions: AS exhibits promise as a therapeutic option due to its effects on the viability and function of random skin flaps in rats.
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Affiliation(s)
- Xiguang Feng
- Department of Orthopedics, People's Hospital of YingDe City Guangdong Province, Yingde City, China
| | - Dong Huang
- Department of Traumatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Dingsheng Lin
- Department of Hand and Plastic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lilin Zhu
- Department of Traumatology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Min Zhang
- Department of Orthopedics, People's Hospital of YingDe City Guangdong Province, Yingde City, China
| | - Yi Chen
- Department of Orthopedics, People's Hospital of YingDe City Guangdong Province, Yingde City, China
| | - Fanyu Wu
- Department of Orthopedics, People's Hospital of YingDe City Guangdong Province, Yingde City, China
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Preparation of hydroxylated lecithin complexed iodine/carboxymethyl chitosan/sodium alginate composite membrane by microwave drying and its applications in infected burn wound treatment. Carbohydr Polym 2018; 206:435-445. [PMID: 30553343 DOI: 10.1016/j.carbpol.2018.10.068] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/04/2018] [Accepted: 10/22/2018] [Indexed: 02/07/2023]
Abstract
Improving the antibacterial properties of membrane wound dressings of natural polymers is crucial. Iodine is an important safe inorganic antibacterial agent, but was confined in the composition with polymer membranes due to the challenges of homogeneity and stability during drying. In the present work, iodine was complexed with hydroxylated lecithin (HL) to improve its stability and complexing efficiency for the composition with carboxymethly chitosan/sodium alginate. With the aid of microwave drying, hydroxylated lecithin complexed iodine/carboxymethly chitosan/sodium alginate (HLI/CMCS/SA) composite membranes with homogeneously distributions of HLI, high contents of activated iodine, good mechanical and swelling properties, proper water vapor permeability, pH controllable iodine release and excellent antibacterial properties were prepared. The composite membranes exhibited high repairing efficiencies for the infection of a rat model of the seawater immersed wound infection of deep partial-thickness burns. This novel antibacterial composite membrane can be potentially used as a high performance wound dressing for treating and repairing open trauma infections.
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Encapsulation of polyphenolic antioxidants obtained from Momordica charantia fruit within zein/gelatin shell core fibers via coaxial electrospinning. FOOD BIOSCI 2018. [DOI: 10.1016/j.fbio.2017.12.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gizaw M, Thompson J, Faglie A, Lee SY, Neuenschwander P, Chou SF. Electrospun Fibers as a Dressing Material for Drug and Biological Agent Delivery in Wound Healing Applications. Bioengineering (Basel) 2018; 5:E9. [PMID: 29382065 PMCID: PMC5874875 DOI: 10.3390/bioengineering5010009] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 12/16/2022] Open
Abstract
Wound healing is a complex tissue regeneration process that promotes the growth of new tissue to provide the body with the necessary barrier from the outside environment. In the class of non-healing wounds, diabetic wounds, and ulcers, dressing materials that are available clinically (e.g., gels and creams) have demonstrated only a slow improvement with current available technologies. Among all available current technologies, electrospun fibers exhibit several characteristics that may provide novel replacement dressing materials for the above-mentioned wounds. Therefore, in this review, we focus on recent achievements in electrospun drug-eluting fibers for wound healing applications. In particular, we review drug release, including small molecule drugs, proteins and peptides, and gene vectors from electrospun fibers with respect to wound healing. Furthermore, we provide an overview on multifunctional dressing materials based on electrospun fibers, including those that are capable of achieving wound debridement and wound healing simultaneously as well as multi-drugs loading/types suitable for various stages of the healing process. Our review provides important and sufficient information to inform the field in development of fiber-based dressing materials for clinical treatment of non-healing wounds.
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Affiliation(s)
- Mulugeta Gizaw
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Jeffrey Thompson
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Addison Faglie
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Shih-Yu Lee
- School of Nursing, College of Nursing and Health Sciences, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Pierre Neuenschwander
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA.
| | - Shih-Feng Chou
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
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Wani S, Sofi HS, Majeed S, Sheikh FA. Recent Trends in Chitosan Nanofibers: From Tissue-Engineering to Environmental Importance: A Review. ACTA ACUST UNITED AC 2017. [DOI: 10.13005/msri/140202] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chitosan is a biodegradable, biocompatible and extracellular matrix mimicking polymer. These tunable biological properties make chitosan highly useful in a wide range of applications like tissue-engineering, wound dressing material, controlled drug delivery system, biosensors and membrane separators, and as antibacterial coatings etc. Moreover, its similarity with glycosaminoglycans makes its suitable candidate for tissue-engineering. Electrospinning is a novel technique to manufacture nanofibers of chitosan and these nanofibers possess high porosity and surface area, making them excellent candidates for biomedical applications. However, lack of mechanical strength and water insolubility make it difficult to fabricate chitosan nanofibers scaffolds. This often requires blending with other polymers and use of harsh solvents. Also, the functionalization of chitosan with different chemical moieties provides a solution to these limitations. This article reviews the recent trends and sphere of application of chitosan nanofibers produced by electrospinning process. Further, we present the latest developments in the functionalization of this polymer to produce materials of biological and environmental importance.
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Affiliation(s)
- Saima Wani
- Department of Biochemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology, Shalimar Campus, Srinagar-190025, Jammu and Kashmir, India
| | - HashAm S Sofi
- Department of Nanotechnology, University of Kashmir, Hazratbal, Srinagar-190006, Jammu and Kashmir, India
| | - Shafquatat Majeed
- Department of Nanotechnology, University of Kashmir, Hazratbal, Srinagar-190006, Jammu and Kashmir, India
| | - Faheem A. Sheikh
- Department of Nanotechnology, University of Kashmir, Hazratbal, Srinagar-190006, Jammu and Kashmir, India
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Hoseinpour Najar M, Minaiyan M, Taheri A. Preparation and in vivo evaluation of a novel gel-based wound dressing using arginine–alginate surface-modified chitosan nanofibers. J Biomater Appl 2017; 32:689-701. [DOI: 10.1177/0885328217739562] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The development of an effective wound dressing with the ability to induce skin wound healing is a great challenge in medicine. Nanofibers are highly attractive for wound dressing preparation due to their properties such as hemostasis induction, good absorption of wound exudates, and facilitation of cell growth. Chitosan nanofibers have attracted great attention for application in wound dressings due to their accelerating effects on wound healing. In this study, arginine surface-modified chitosan nanofibers were successfully prepared by attachment of arginine molecules on the surface of chitosan nanofibers using sodium alginate through electrostatic interaction. The effect of pH on the amount of attached arginine was evaluated at three different pH values; 5, 6, and 7. Fourier-transform infrared spectroscopy and zeta potential of chitosan nanofibers before and after surface modification suggested the occurrence of the attachment of arginine to chitosan nanofibers. Scanning electron microscope images showed the nanofibrous structure of arginine surface-modified chitosan nanofibers with an average diameter ranging from 100 nm to 150 nm. The release of arginine from arginine surface-modified chitosan nanofibers gel showed a sustained release manner. The suitable viscosity and spreadability of arginine surface-modified chitosan nanofibers gel verified its easy application at the wound site. Arginine surface-modified chitosan nanofibers gel significantly improved the wound healing process including wound closure when tested in vivo using rat model. Additionally, histological examination and immunohistochemical studies showed the significant enhancement of the re-epithelialization, collagen deposition, and angiogenesis in the skin of the animal group treated with arginine surface-modified chitosan nanofibers gel compared with the other control groups. These results suggested that arginine surface-modified chitosan nanofibers gel could be introduced as an effective wound dressing.
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Affiliation(s)
- Mahsa Hoseinpour Najar
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical sciences, Isfahan, Iran
| | - Mohsen Minaiyan
- Department of Pharmacology and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azade Taheri
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical sciences, Isfahan, Iran
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