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Alavi SE, Alavi SZ, Nisa MU, Koohi M, Raza A, Ebrahimi Shahmabadi H. Revolutionizing Wound Healing: Exploring Scarless Solutions through Drug Delivery Innovations. Mol Pharm 2024; 21:1056-1076. [PMID: 38288723 DOI: 10.1021/acs.molpharmaceut.3c01072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Human skin is the largest organ and outermost surface of the human body, and due to the continuous exposure to various challenges, it is prone to develop injuries, customarily known as wounds. Although various tissue engineering strategies and bioactive wound matrices have been employed to speed up wound healing, scarring remains a significant challenge. The wound environment is harsh due to the presence of degradative enzymes and elevated pH levels, and the physiological processes involved in tissue regeneration operate on distinct time scales. Therefore, there is a need for effective drug delivery systems (DDSs) to address these issues. The objective of this review is to provide a comprehensive exposition of the mechanisms underlying the skin healing process, the factors and materials used in engineering DDSs, and the different DDSs used in wound care. Furthermore, this investigation will delve into the examination of emergent technologies and potential avenues for enhancing the efficacy of wound care devices.
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Affiliation(s)
- Seyed Ebrahim Alavi
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, Queensland 4102, Australia
| | - Seyed Zeinab Alavi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan 7718175911, Iran
| | - Mehr Un Nisa
- Nishtar Medical University and Hospital, Multan 60000, Pakistan
| | - Maedeh Koohi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan 7718175911, Iran
| | - Aun Raza
- School of Pharmacy, Jiangsu University, Zhenjiang 202013, PR China
| | - Hasan Ebrahimi Shahmabadi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan 7718175911, Iran
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2
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Bi M, Qin Y, Wang L, Zhang J. The protective role of resveratrol in diabetic wound healing. Phytother Res 2023; 37:5193-5204. [PMID: 37767805 DOI: 10.1002/ptr.7981] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/23/2023] [Accepted: 07/28/2023] [Indexed: 09/29/2023]
Abstract
Diabetic wounds are severe complications of diabetes mellitus (DM), which have difficulty in healing. Although diverse treatments have been used, the prognosis of diabetic wounds is not satisfactory; therefore, an effective therapy to accelerate diabetic wound healing is urgently needed. In our review, we summarized that resveratrol can promote diabetic wound healing by protecting against hyperglycemia, inflammation, oxidative stress, vascular pathology, infection, and peripheral neuropathy. To clarify it clearly, we highlighted its underlying mechanisms of protective effects of resveratrol against diabetic wounds, and high-quality studies are needed to firmly establish its clinical efficacy. Otherwise, with the development of material sciences, resveratrol can exert its therapeutic effectiveness efficiently; however, more high-quality studies are needed to confirm the clinical efficacy of resveratrol on diabetic wounds.
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Affiliation(s)
- Minglei Bi
- Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Yonghong Qin
- Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Lerong Wang
- Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Jin Zhang
- Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, China
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Pandey S, Shamim A, Shaif M, Kushwaha P. Development and evaluation of Resveratrol-loaded liposomes in hydrogel-based wound dressing for diabetic foot ulcer. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1811-1825. [PMID: 36862150 DOI: 10.1007/s00210-023-02441-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/21/2023] [Indexed: 03/03/2023]
Abstract
Diabetic foot wounds (DFUs) are counted as one of the most common microvascular complications associated with poorly controlled and chronic diabetes mellitus. It confers a serious challenge to clinical practice, surmounting hyperglycemia-induced disturbance in angiogenesis and endothelial dysfunction, with limited fruitful intervention to control the manifestations of DFUs. Resveratrol (RV) can improve endothelial function and has strong pro-angiogenic properties for the treatment of diabetic foot wounds. The present study aims to design an RV-loaded liposome-in-hydrogel system to effectively heal diabetic foot ulcers. A thin-film hydration method was used to prepare RV-loaded liposomes. Liposomal vesicles were assessed, for various characteristics such as particle size, zeta potential, and entrapment efficiency. The best-prepared liposomal vesicle was then incorporated into 1% carbopol 940 gel to develop a hydrogel system. The RV-loaded liposomal gel showed improved skin penetration. To assess the efficacy of the developed formulation, a diabetic foot ulcer animal model was used. The topical application of the developed formulation significantly reduced blood glucose and increased glycosaminoglycans (GAGs) to improve ulcer healing as well as wound closure on day 9. Faster re-epithelization, proliferation of fibroblast, formation of collagen, and reduced inflammatory cell infiltration at the wound site were also noted. Results indicate that RV-loaded liposomes in hydrogel-based wound dressing significantly accelerate wound healing in diabetic foot ulcers by restoring the altered wound healing process in diabetics.
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Affiliation(s)
- Supriya Pandey
- Faculty of Pharmacy, Integral University, Dasauli-Kursi Road, Lucknow, 226026, India
| | - Arshiya Shamim
- Faculty of Pharmacy, Integral University, Dasauli-Kursi Road, Lucknow, 226026, India
| | - Mohammad Shaif
- Faculty of Pharmacy, Integral University, Dasauli-Kursi Road, Lucknow, 226026, India
| | - Poonam Kushwaha
- Faculty of Pharmacy, Integral University, Dasauli-Kursi Road, Lucknow, 226026, India.
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Cai F, Chen W, Zhao R, Liu Y. Mechanisms of Nrf2 and NF-κB pathways in diabetic wound and potential treatment strategies. Mol Biol Rep 2023; 50:5355-5367. [PMID: 37029875 DOI: 10.1007/s11033-023-08392-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/15/2023] [Indexed: 04/09/2023]
Abstract
The issue of delayed wound healing or nonhealing in diabetic patients presents a challenge for modern medicine. A number of attempts have been made to understand the mechanisms behind diabetic wound. In a hyperglycemic environment, increased intracellular reactive oxygen species (ROS) disturb the balance between oxidation and antioxidant, causing the wound environment to deteriorate. It has been established that the nuclear factor E2-related factor 2 (Nrf2) and nuclear factor-kappa B (NF-κB) pathways play an important role in regulating inflammation and oxidative stress. Several potential treatment strategies involving Nrf2 and/or NF-κB pathways have been explored in previous studies. Hence, we analyzed mechanisms and changes in Nrf2 and NF-κB pathways in response to oxidative stress and inflammation in diabetic environment. Additionally, we reviewed potential treatment strategies from the past five years for diabetic wound by Nrf2 and/or NF-κB pathways, including receptor agonists, vitamins, hormones, exosomes, drugs, plants, and biomaterials. It may be useful to develop drugs to promote diabetic wound healing.
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Affiliation(s)
- Feiyu Cai
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Wenjiao Chen
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Ruomei Zhao
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Yi Liu
- Department of Burns and Plastic Surgery & Wound Repair Surgery, the Lanzhou University Second Hospital, Lanzhou, Gansu, China.
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Microparticles in the Development and Improvement of Pharmaceutical Formulations: An Analysis of In Vitro and In Vivo Studies. Int J Mol Sci 2023; 24:ijms24065441. [PMID: 36982517 PMCID: PMC10049314 DOI: 10.3390/ijms24065441] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 03/18/2023] Open
Abstract
Microparticulate systems such as microparticles, microspheres, microcapsules or any particle in a micrometer scale (usually of 1–1000 µm) are widely used as drug delivery systems, because they offer higher therapeutic and diagnostic performance compared to conventional drug delivery forms. These systems can be manufactured with many raw materials, especially polymers, most of which have been effective in improving the physicochemical properties and biological activities of active compounds. This review will focus on the in vivo and in vitro application in the last decade (2012 to 2022) of different active pharmaceutical ingredients microencapsulated in polymeric or lipid matrices, the main formulation factors (excipients and techniques) and mostly their biological activities, with the aim of introducing and discussing the potential applicability of microparticulate systems in the pharmaceutical field.
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Emami S, Ebrahimi M. Bioactive wound powders as wound healing dressings and drug delivery systems. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Supporting the Wound Healing Process-Curcumin, Resveratrol and Baicalin in In Vitro Wound Healing Studies. Pharmaceuticals (Basel) 2023; 16:ph16010082. [PMID: 36678579 PMCID: PMC9861488 DOI: 10.3390/ph16010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 01/11/2023] Open
Abstract
The purpose of the investigation was to evaluate the effect of the selected bioflavonoids curcumin, resveratrol and baicalin on the wound healing process in an in vitro model. In the study, Balb3t3 and L929 cell lines were used. The first step was the evaluation of the cytotoxicity of the substances tested (MTT assay). Then, using the scratch test (ST), the influence of bioflavonoids on the healing process was evaluated in an in vitro model. The second stage of the work was a mathematical analysis of the results obtained. On the basis of experimental data, the parameters of the Brian and Cousens model were determined in order to determine the maximum value of the cellular and metabolic response that occurs for the examined range of concentrations of selected bioflavonoids. In the MTT assays, no cytotoxic effect of curcumin, resveratrol and baicalin was observed in selected concentrations, while in the ST tests for selected substances, a stimulatory effect was observed on the cell division rate regardless of the cell lines tested. The results obtained encourage further research on the use of substances of natural origin to support the wound healing process.
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Jia Y, Shao JH, Zhang KW, Zou ML, Teng YY, Tian F, Chen MN, Chen WW, Yuan ZD, Wu JJ, Yuan FL. Emerging Effects of Resveratrol on Wound Healing: A Comprehensive Review. Molecules 2022; 27:molecules27196736. [PMID: 36235270 PMCID: PMC9570564 DOI: 10.3390/molecules27196736] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/01/2022] [Accepted: 10/02/2022] [Indexed: 11/07/2022] Open
Abstract
Resveratrol (RSV) is a natural extract that has been extensively studied for its significant anti-inflammatory and antioxidant effects, which are closely associated with a variety of injurious diseases and even cosmetic medicine. In this review, we have researched and summarized the role of resveratrol and its different forms of action in wound healing, exploring its role and mechanisms in promoting wound healing through different modes of action such as hydrogels, fibrous scaffolds and parallel ratio medical devices with their anti-inflammatory, antioxidant, antibacterial and anti-ageing properties and functions in various cells that may play a role in wound healing. This will provide a direction for further understanding of the mechanism of action of resveratrol in wound healing for future research.
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Affiliation(s)
- Yuan Jia
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi 214041, China
| | - Jia-Hao Shao
- Wuxi Clinical Medicine Hospital of Chinese Medicine, Nanjing University of Chinese Medicine, Wuxi 214041, China
| | - Kai-Wen Zhang
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi 214041, China
| | - Ming-Li Zou
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi 214041, China
| | - Ying-Ying Teng
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Jiangnan University, Wuxi 214041, China
| | - Fan Tian
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Jiangnan University, Wuxi 214041, China
| | - Meng-Nan Chen
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Jiangnan University, Wuxi 214041, China
| | - Wei-Wei Chen
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Jiangnan University, Wuxi 214041, China
| | - Zheng-Dong Yuan
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Jiangnan University, Wuxi 214041, China
| | - Jun-Jie Wu
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Jiangnan University, Wuxi 214041, China
| | - Feng-Lai Yuan
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi 214041, China
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Jiangnan University, Wuxi 214041, China
- Correspondence: ; Tel./Fax: +86-510-82603332
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Recent Overview of Resveratrol's Beneficial Effects and Its Nano-Delivery Systems. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165154. [PMID: 36014390 PMCID: PMC9414442 DOI: 10.3390/molecules27165154] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/17/2022]
Abstract
Highlights Abstract Natural polyphenols have a wide variety of biological activities and are taken into account as healthcare materials. Resveratrol is one such natural polyphenol, belonging to a group known as stilbenoids (STBs). Resveratrol (3,5,4′-trihydroxy-trans-stilbene) is mainly found in grapes, wine, nuts, and berries. A wide range of biological activities has been demonstrated by resveratrol, including antimicrobial, antioxidant, antiviral, antifungal, and antiaging effects, and many more are still under research. However, as with many other plant-based polyphenol products, resveratrol suffers from low bioavailability once administered in vivo due to its susceptibility to rapid enzyme degradation by the body’s innate immune system before it can exercise its therapeutic influence. Therefore, it is of the utmost importance to ensure the best use of resveratrol by creating a proper resveratrol delivery system. Nanomedicine and nanodelivery systems utilize nanoscale materials as diagnostic tools or to deliver therapeutic agents in a controlled manner to specifically targeted locations. After a brief introduction about polyphenols, this review overviews the physicochemical characteristics of resveratrol, its beneficial effects, and recent advances on novel nanotechnological approaches for its delivery according to the type of nanocarrier utilized. Furthermore, the article summarizes the different potential applications of resveratrol as, for example, a therapeutic and disease-preventing anticancer and antiviral agent.
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10
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ERDOĞAN Ü. Antioxidant Activities and Chemical Composition of Essential Oil of Rhizomes of Zingiber officinale (Ginger) and Curcuma longa L.(Turmeric). INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2022. [DOI: 10.21448/ijsm.993906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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11
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Choosing the appropriate wall materials for spray-drying microencapsulation of natural bioactive ingredients: Taking phenolic compounds as examples. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.08.082] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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12
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Pignet AL, Schellnegger M, Hecker A, Kohlhauser M, Kotzbeck P, Kamolz LP. Resveratrol-Induced Signal Transduction in Wound Healing. Int J Mol Sci 2021; 22:ijms222312614. [PMID: 34884419 PMCID: PMC8657598 DOI: 10.3390/ijms222312614] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/14/2021] [Accepted: 11/16/2021] [Indexed: 12/11/2022] Open
Abstract
Resveratrol is a well-known polyphenol that harbors various health benefits. Besides its well-known anti-oxidative potential, resveratrol exerts anti-inflammatory, pro-angiogenic, and cell-protective effects. It seems to be a promising adjuvant for various medical indications, such as cancer, vascular, and neurodegenerative diseases. Additionally, resveratrol was shown to display beneficial effects on the human skin. The polyphenol is discussed to be a feasible treatment approach to accelerate wound healing and prevent the development of chronic wounds without the drawback of systemic side effects. Despite resveratrol’s increasing popularity, its molecular mechanisms of action are still poorly understood. To take full advantage of resveratrol’s therapeutic potential, a profound knowledge of its interactions with its targets is needed. Therefore, this review highlights the resveratrol-induced molecular pathways with particular focus on the most relevant variables in wound healing, namely inflammation, oxidative stress, autophagy, collagen proliferation and angiogenesis.
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Affiliation(s)
- Anna-Lisa Pignet
- COREMED—Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (M.S.); (A.H.); (M.K.); (P.K.); (L.-P.K.)
- Research Unit for Tissue Regeneration, Repair and Reconstruction, Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
- Correspondence: ; Tel.: +43-316-876-6013
| | - Marlies Schellnegger
- COREMED—Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (M.S.); (A.H.); (M.K.); (P.K.); (L.-P.K.)
| | - Andrzej Hecker
- COREMED—Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (M.S.); (A.H.); (M.K.); (P.K.); (L.-P.K.)
- Research Unit for Tissue Regeneration, Repair and Reconstruction, Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Michael Kohlhauser
- COREMED—Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (M.S.); (A.H.); (M.K.); (P.K.); (L.-P.K.)
| | - Petra Kotzbeck
- COREMED—Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (M.S.); (A.H.); (M.K.); (P.K.); (L.-P.K.)
- Research Unit for Tissue Regeneration, Repair and Reconstruction, Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Lars-Peter Kamolz
- COREMED—Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, Austria; (M.S.); (A.H.); (M.K.); (P.K.); (L.-P.K.)
- Research Unit for Tissue Regeneration, Repair and Reconstruction, Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
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Hecker A, Schellnegger M, Hofmann E, Luze H, Nischwitz SP, Kamolz LP, Kotzbeck P. The impact of resveratrol on skin wound healing, scarring, and aging. Int Wound J 2021; 19:9-28. [PMID: 33949795 PMCID: PMC8684849 DOI: 10.1111/iwj.13601] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/25/2021] [Accepted: 03/31/2021] [Indexed: 12/14/2022] Open
Abstract
Resveratrol is a well‐known antioxidant that harbours many health beneficial properties. Multiple studies associated the antioxidant, anti‐inflammatory, and cell protective effects of resveratrol. These diverse effects of resveratrol are also potentially involved in cutaneous wound healing, scarring, and (photo‐)aging of the skin. Hence, this review highlighted the most relevant studies involving resveratrol in wound healing, scarring, and photo‐aging of the skin. A systematic review was performed and the database PubMed was searched for suitable publications. Only original articles in English that investigated the effects of resveratrol in wound healing, scarring, and (photo‐)aging of the skin were analysed. The literature search yielded a total of 826 studies, but only 41 studies met the inclusion criteria. The included studies showed promising results that resveratrol might be a feasible treatment approach to support wound healing, counteract excessive scarring, and even prevent photo‐aging of the skin. Resveratrol represents an interesting and promising novel therapy regime but to confirm resveratrol‐associated effects, more evidence based in vitro and in vivo studies are needed.
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Affiliation(s)
- Andrzej Hecker
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria.,Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
| | - Marlies Schellnegger
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria.,Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
| | - Elisabeth Hofmann
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria.,Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
| | - Hanna Luze
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria.,Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
| | - Sebastian Philipp Nischwitz
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria.,Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
| | - Lars-Peter Kamolz
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria.,Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
| | - Petra Kotzbeck
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria.,Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
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14
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The Use of Micro- and Nanocarriers for Resveratrol Delivery into and across the Skin in Different Skin Diseases-A Literature Review. Pharmaceutics 2021; 13:pharmaceutics13040451. [PMID: 33810552 PMCID: PMC8066164 DOI: 10.3390/pharmaceutics13040451] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/19/2021] [Accepted: 03/24/2021] [Indexed: 12/11/2022] Open
Abstract
In recent years, polyphenols have been extensively studied due to their antioxidant, anticancer, and anti-inflammatory properties. It has been shown that anthocyanins, flavonols, and flavan-3-ols play an important role in the prevention of bacterial infections, as well as vascular or skin diseases. Particularly, resveratrol, as a multi-potent agent, may prevent or mitigate the effects of oxidative stress. As the largest organ of the human body, skin is an extremely desirable target for the possible delivery of active substances. The transdermal route of administration of active compounds shows many advantages, including avoidance of gastrointestinal irritation and the first-pass effect. Moreover, it is non-invasive and can be self-administered. However, this delivery is limited, mainly due to the need to overpassing the stratum corneum, the possible decomposition of the substances in contact with the skin surface or in the deeper layers thereof. In addition, using resveratrol for topical and transdermal delivery faces the problems of its low solubility and poor stability. To overcome this, novel systems of delivery are being developed for the effective transport of resveratrol across the skin. Carriers in the micro and nano size were demonstrated to be more efficient for safe and faster topical and transdermal delivery of active substances. The present review aimed to discuss the role of resveratrol in the treatment of skin abnormalities with a special emphasis on technologies enhancing transdermal delivery of resveratrol.
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Sağıroğlu AA, Çelik B, Güler EM, Koçyiğit A, Özer Ö. Evaluation of wound healing potential of new composite liposomal films containing coenzyme Q10 and d-panthenyl triacetate as combinational treatment. Pharm Dev Technol 2021; 26:444-454. [PMID: 33583320 DOI: 10.1080/10837450.2021.1887892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Conventional formulations can not achieve wound healing efficiently and fail to accelerate wound regeneration. To overcome these problems, it was planned to develop nanoformulations that perform a positive effect on the wound healing duration and are suitable for topical use. In this study, liposomal film formulations that encapsulated d-panthenyl triacetate (PTA) and coenzyme Q10 (CoQ10) were optimized by using response surface methodology (RSM) and were analyzed for their wound healing efficacy and cytotoxicity on fibroblast (CCD1079 Sk) and keratinocyte (HEKa) cells. Swelling index, puncture strength, and puncture deformation values, which were choosen as dependent variables for the liposomal film formulation were found as 556.9% ± 21.3, 3.98 ± 0.98 N/mm2, and 6.57% ± 1.12, respectively. Cumulative release of 65.32% for PTA and 12.23% for CoQ10 was obtained after 24 hours of in vitro release study in sink conditions. The in vitro cytotoxicity and wound healing assay results suggested that optimum formulation could be used safely on fibroblast and keratinocyte cells and provided wound closure entirely after 24 h. Consequently, the optimum liposomal film containing PTA and CoQ10 formulations could be proposed as an innovative approach in wound healing treatment, considering their release, mechanical properties, stability, and effectiveness.
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Affiliation(s)
- Ali Asram Sağıroğlu
- Faculty of Pharmacy, Pharmaceutical Technology Department, Bezmialem Vakif University, Istanbul, Turkey
| | - Burak Çelik
- Faculty of Pharmacy, Pharmaceutical Technology Department, Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Güler
- Hamidiye School of Medicine, Department of Medical Biochemistry, University of Health Sciences, Istanbul, Turkey.,Hamidiye Faculty of Medicine, Haydarpasa Numune Health Application and Research Center, Department of Medical Biochemistry, University of Health Sciences, Istanbul, Turkey
| | - Abdurrahim Koçyiğit
- Faculty of Medicine, Medical Biochemistry Department, Bezmialem Vakif University, Istanbul, Turkey
| | - Özgen Özer
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Ege University, Izmir, Turkey
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Natural Formulations Provide Antioxidant Complement to Hyaluronic Acid-Based Topical Applications Used in Wound Healing. Polymers (Basel) 2020; 12:polym12081847. [PMID: 32824650 PMCID: PMC7465439 DOI: 10.3390/polym12081847] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/04/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023] Open
Abstract
Hyaluronic acid (HA) promotes wound healing, and, accordingly, formulations based on HA have been widely used in regenerative medicine. In addition, naturally derived compounds, e.g., plant-based extracts and vitamin E, have exhibited antioxidant activity. In this study, a formulation containing hyaluronic acid, vitamin E, raspberry extract, and green tea was developed for potential topical applications, targeting wound healing. Rheological analysis was performed along with antioxidant and biological studies. The rheological characterization showed that the HA-based formulation is a thixotropic platform and possesses higher mechanical properties than the control formulation. To evaluate the wound healing potential of the formulation, an in vitro “wound healing” assay was carried out using human derived fibroblasts (HDF) with a cell-free gap on the tissue culture dish. The formulation showed better wound healing ability than the control formulation.
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17
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Sahiner N, Suner SS, Ayyala RS. Preparation of hyaluronic acid and copolymeric hyaluronic acid: sucrose particles as tunable antibiotic carriers. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02168-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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18
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Erol İ, Üstündağ Okur N, Orak D, Sipahi H, Aydın A, Özer Ö. Tazarotene-loaded in situ gels for potential management of psoriasis: biocompatibility, anti-inflammatory and analgesic effect. Pharm Dev Technol 2020; 25:909-918. [PMID: 32364036 DOI: 10.1080/10837450.2020.1765180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Psoriasis is a chronic autoinflammatory disorder characterized by patches of abnormal skin. For psoriasis management, the application of topical retinoids as Tazarotene is recommended. However, Tazarotene could induce skin irritation limiting its use. Herein, it is evaluated the possible usage of in situ gels for tazarotene skin delivery. The topical in situ gels were developed using thermosensitive poloxamers via cold method. They were examined for their appearance, sol-gel temperature, clarity, pH, viscosity, in vitro release, and stability. Their biocompatibility was evaluated by investigating their cytotoxicity and irritation inducing capacity. The possible anti-inflammatory and analgesic activities were determined by measuring the nitric oxide and prostaglandin E2 levels production in LPS-stimulated RAW264.7 murine macrophage cells. It was revealed that the in situ gels had no cytotoxic effect (∼95-100% cell viability) and nor irritation potential (∼97% cell viability), according to the in vitro EpiDerm™ reconstituted skin irritation test. Additionally, the 10% tazarotene-in situ gels showed possible analgesic activity since the production of prostaglandin E2 (PGE2) was decreased. In further, both concentrations of 5% and 10% tazarotene-in situ gels inhibited significantly the nitrite oxide production at 16% and 19%, respectively. Finally, the prepared in situ gels can act as a potential non-irritant alternative option for tazarotene topical skin delivery.
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Affiliation(s)
- İpek Erol
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Ege University, Izmir, Turkey
| | - Neslihan Üstündağ Okur
- Faculty of Pharmacy, Department of Pharmaceutical Technology, University of Health Sciences, Istanbul, Turkey
| | - Duygu Orak
- Faculty of Pharmacy, Department of Toxicology, Yeditepe University, Istanbul, Turkey.,Faculty of Pharmacy, Drug, Cosmetic and Medical Device Research-Development and Analysis Laboratory, Yeditepe University, Istanbul, Turkey
| | - Hande Sipahi
- Faculty of Pharmacy, Department of Toxicology, Yeditepe University, Istanbul, Turkey
| | - Ahmet Aydın
- Faculty of Pharmacy, Department of Toxicology, Yeditepe University, Istanbul, Turkey
| | - Özgen Özer
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Ege University, Izmir, Turkey
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19
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Çetinkalp Ş, Gökçe EH, Şimşir I, Tuncay Tanrıverdi S, Doğan F, Biray Avcı Ç, Eroğlu İ, Utku T, Gündüz C, Özer Ö. Comparative Evaluation of Clinical Efficacy and Safety of Collagen Laminin–Based Dermal Matrix Combined With Resveratrol Microparticles (Dermalix) and Standard Wound Care for Diabetic Foot Ulcers. INT J LOW EXTR WOUND 2020; 20:217-226. [PMID: 32131656 DOI: 10.1177/1534734620907773] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This is an open, prospective, comparative parallel-arm medical device clinical study of Dermalix (Dx) in diabetic foot wounds. Dx is a 3-dimensional collagen-laminin porous-structured dermal matrix prepared and additionally impregnated with resveratrol-loaded hyaluronic acid and dipalmitoylphosphatidylcholine-based microparticles. The aim was to evaluate the efficacy and safety of Dx, an investigational medical device, in Wagner 1 and 2 wounds in comparison to a standard wound care (SWC) that consists of irrigation and cleaning with sterile saline solution. Forty-eight patients were randomized to receive either SWC or SWC + Dx. A 4-week treatment period was followed by a 2-month follow-up without treatment. The wound area measurement, total collagen, vascular epidermal growth factor, tumor necrosis factor, interleukin 1, caspase 3, glutathione, reduced/oxidized glutathione, and lipid peroxidation levels were evaluated. At the end of 4 weeks, the percentage closures of wounds were determined as 57.82% for Dx, and 26.63% for SWC groups. Dx had a significant effect on tumor necrosis factor, caspase 3, and reduced/oxidized glutathione levels. Dx provided 2 times faster wound healing and decreased oxidative stress. Application of Dx in the first phase of wound would help the wound area heal faster with a safe profile.
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20
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Cardoso T, Gonçalves A, Estevinho BN, Rocha F. Potential food application of resveratrol microparticles: Characterization and controlled release studies. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.07.079] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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21
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Comparison of 1-Palmitoyl-2-Linoleoyl-3-Acetyl-Rac-Glycerol-Loaded Self-Emulsifying Granule and Solid Self-Nanoemulsifying Drug Delivery System: Powder Property, Dissolution and Oral Bioavailability. Pharmaceutics 2019; 11:pharmaceutics11080415. [PMID: 31426411 PMCID: PMC6723086 DOI: 10.3390/pharmaceutics11080415] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 01/05/2023] Open
Abstract
The main objective of this study was to compare the powder property, dissolution and bioavailability of 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol (PLAG)-loaded self-emulsifying granule system (SEGS) and solid self-nanoemulsifying drug delivery system (SNEDDS). Various SEGS formulations were prepared, and the effect of surfactant and binder on the drug solubility in them, leading to selecting sodium lauryl sulphate (SLS) and hydroxyl propyl methyl cellulose (HPMC). The SEGS and SNEDDS were prepared with PLAG/SLS/HPMC/calcium silicate/microcrystalline cellulose at the weight ratio of 1:0.25:0.1:0.5:3 employing the fluid bed granulation and spray-drying technique, respectively. Their powder properties were compared in terms of flow ability, emulsion droplet size, scanning electron microscopy, and powder X-ray diffraction. Furthermore, the solubility, dissolution, and oral bioavailability in rats of the SEGS were assessed in comparison with the SNEDDS. The SEGS and SNEDDS enhanced the solubility of the drug approximately 36- and 32-fold as compared with the drug alone; but they had no differences. The crystalline drug may exist in both the calcium silicate and microcrystalline cellulose (MCC) in the SEGS, but only in the calcium silicate in the SNEDDS. The SEGS had considerably improved the flow ability (Hausner ratio, 1.23 vs. 1.07; Carr index, 19.8 vs. 43.5%) and drug dissolution as compared with the SNEDDS. The SEGS and SNEDDS with double peak profiles, unlike the single peak of drug alone, showed a significantly higher plasma concentration and area under the curve (AUC), as compared with drug alone. Although they were not significantly different, the SEGS gave higher AUC than did the SNEDDS, suggesting its enhanced oral bioavailability of PLAG. Thus, the SEGS could be used as a powerful oral dosage form to improve the flow ability and oral bioavailability of PLAG, an oily drug.
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22
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Shah SA, Sohail M, Khan S, Minhas MU, de Matas M, Sikstone V, Hussain Z, Abbasi M, Kousar M. Biopolymer-based biomaterials for accelerated diabetic wound healing: A critical review. Int J Biol Macromol 2019; 139:975-993. [PMID: 31386871 DOI: 10.1016/j.ijbiomac.2019.08.007] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 08/01/2019] [Accepted: 08/01/2019] [Indexed: 02/07/2023]
Abstract
Non-healing, chronic wounds place a huge burden on healthcare systems as well as individual patients. These chronic wounds especially diabetic wounds will ultimately lead to compromised mobility, amputation of limbs and even death. Currently, wounds and limb ulcers associated with diabetes remain significant health issues; the associated healthcare cost ultimately leads to the increased clinical burden. The presence of diabetes interrupts a highly coordinated cascade of events in the wound closure process. Advances in the understanding of pathophysiological conditions associated with diabetic wounds lead to the development of drug delivery systems which can enhance wound healing by targeting various phases of the impaired processes. Wound environments typically contain degradative enzymes, along with an elevated pH and demonstrate a physiological cascade involved in the regeneration of tissue, which requires the application of an effective delivery system. This article aims to review the pathophysiological conditions associated with chronic and diabetic wounds. The delivery systems, involved in their treatment are described, highlighting potential biomaterials and polymers for establishing drug delivery systems, specifically for the treatment of diabetic wounds and the promotion of the associated mechanisms involved in advanced wound healing. Emerging approaches and engineered devices for effective wound care are reported. The discussion will give insight into the mechanisms relevant to all stages of wound healing.
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Affiliation(s)
- Syed Ahmed Shah
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Muhammad Sohail
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, 22060, Pakistan.
| | - Shahzeb Khan
- Department of Pharmacy, University of Malakand, Lower Dir, KPK, Pakistan; Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409, USA.; Discipline of Pharmaceutical Sciences, School of Health Sciences, UKZN, Durban, South Africa
| | | | - Marcel de Matas
- SEDA Pharmaceutical Development Services, The BioHub at Alderley Park, Cheshire, UK
| | - Victoria Sikstone
- Division of Pharmacy and Optometry, School of Health Sciences, The University of Manchester, UK
| | - Zahid Hussain
- Department of Pharmaceutics & Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Mudassir Abbasi
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Mubeen Kousar
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, 22060, Pakistan
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23
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Huang X, Sun J, Chen G, Niu C, Wang Y, Zhao C, Sun J, Huang H, Huang S, Liang Y, Shen Y, Cong W, Jin L, Zhu Z. Resveratrol Promotes Diabetic Wound Healing via SIRT1-FOXO1-c-Myc Signaling Pathway-Mediated Angiogenesis. Front Pharmacol 2019; 10:421. [PMID: 31068817 PMCID: PMC6491521 DOI: 10.3389/fphar.2019.00421] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 04/03/2019] [Indexed: 12/11/2022] Open
Abstract
Background/Aims: Diabetic non-healing skin ulcers represent a serious challenge in clinical practice, in which the hyperglycemia-induced disturbance of angiogenesis, and endothelial dysfunction play a crucial role. Resveratrol (RES), a silent information regulator 1 (SIRT1) agonist, can improve endothelial function and has strong pro-angiogenic properties, and has thus become a research focus for the treatment of diabetic non-healing skin ulcers; however, the underlying mechanism by which RES regulates these processes remains unclear. Therefore, the present study was intended to determine if RES exerts its observed protective role in diabetic wound healing by alleviating hyperglycemia-induced endothelial dysfunction and the disturbance of angiogenesis. Methods: We investigated the effects of RES on cell migration, cell proliferation, apoptosis, tube formation, and the underlying molecular mechanisms in 33 mM high glucose-stimulated human umbilical vein endothelial cells (HUVECs) by semi-quantitative RT-PCR, western blot analysis, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining, and immunofluorescence in vitro. We further explored the role of RES on endothelial dysfunction and wound healing disturbance in db/db mice by TUNEL staining, immunofluorescence, and photography in vivo. Results: We observed an obvious inhibition of hyperglycemia-triggered endothelial dysfunction and a disturbance of angiogenesis, followed by the promotion of diabetic wound healing via RES, along with restoration of the activity of the hyperglycemia-impaired SIRT1 signaling pathway. Pretreatment with EX-527, a SIRT1 inhibitor, abolished the RES-mediated endothelial protection and pro-angiogenesis action, and then delayed diabetic wound healing. Furthermore, examination of the overexpression of forkhead box O1 (FOXO1), a transcription factor substrate of SIRT1, in HUVECs and db/db mice revealed that RES activated SIRT1 to restore hyperglycemia-triggered endothelial dysfunction and disturbance of angiogenesis, followed by the promotion of diabetic wound healing in a c-Myc-dependent manner. Pretreatment with 10058-F4, a c-Myc inhibitor, repressed RES-mediated endothelial protection, angiogenesis, and diabetic wound healing. Conclusion: Our findings indicate that the positive role of RES in diabetic wound healing via its SIRT1-dependent endothelial protection and pro-angiogenic effects involves the inhibition of FOXO1 and the de-repression of c-Myc expression.
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Affiliation(s)
- Xiaozhong Huang
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Jia Sun
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Gen Chen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Chao Niu
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ying Wang
- Department of Pharmacy, Jinhua Women & Children Health Hospital, Jinhua, China
| | - Congcong Zhao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Jian Sun
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Huiya Huang
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shuai Huang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Yangzhi Liang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Yingjie Shen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Weitao Cong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Litai Jin
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Zhongxin Zhu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
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24
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Furlani F, Sacco P, Decleva E, Menegazzi R, Donati I, Paoletti S, Marsich E. Chitosan Acetylation Degree Influences the Physical Properties of Polysaccharide Nanoparticles: Implication for the Innate Immune Cells Response. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9794-9803. [PMID: 30768897 DOI: 10.1021/acsami.8b21791] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The aim of the present contribution is twofold as it reports (i) on the role played by chitosan acetylation degree for the stability of nanoparticles (NPs) formed with hyaluronan and (ii) on the effect of the interaction of such NPs with immune cells. Chitosans with similar viscosity-average molecular weight, [Formula: see text], (i.e., 200 000) and different fractions of acetylated units ( FA) together with low-molecular-weight hyaluronan were chosen for developing a select library of formulations via electrostatic complex coacervation. The resulting NPs were analyzed in terms of size, polydispersity, surface charge, and stability in physiological-mimicked media by dynamic light scattering. Only medium acetylated chitosan ( FA = 0.16) guaranteed the stability of NPs. To explore the effect of NPs interaction with immune cells, the release of proinflammatory cytokines and the reactive oxygen species production by human macrophages and neutrophils, respectively, were evaluated. Strikingly, a structure-function relationship emerged, showing that NPs made of chitosans with FA = 0.02, 0.25, 0.46, and 0.63 manifested a proinflammatory activity, linked to the instability of the system. Conversely, NPs made of chitosan with FA = 0.16 neither modified the functional response of macrophages nor that of neutrophils. Of note, such NPs were found to possess additional properties potentially advantageous in applications such as delivery of therapeutics to target inflamed sites: (i) they are devoid of cytotoxic effects, (ii) they avoid engulfment during the early stage of interaction with macrophages, and (iii) they are muco-adhesive, thereby providing for site-specificity and long-residence effects.
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Affiliation(s)
- Franco Furlani
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Pasquale Sacco
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eva Decleva
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Renzo Menegazzi
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Ivan Donati
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Sergio Paoletti
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences , University of Trieste , Piazza dell'Ospitale 1 , I-34129 Trieste , Italy
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25
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Reolon JB, Brustolin M, Accarini T, Viçozzi GP, Sari MHM, Bender EA, Haas SE, Brum MCS, Gündel A, Colomé LM. Co-encapsulation of acyclovir and curcumin into microparticles improves the physicochemical characteristics and potentiates in vitro antiviral action: Influence of the polymeric composition. Eur J Pharm Sci 2019; 131:167-176. [PMID: 30790703 DOI: 10.1016/j.ejps.2019.02.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 12/21/2018] [Accepted: 02/14/2019] [Indexed: 01/23/2023]
Abstract
The present study developed and characterized microparticles formulations containing acyclovir and curcumin co-encapsulated in order to overcome the biopharmaceutical limitations and increase the antiviral effect of both drugs. The microparticles were prepared by a spray drying methodology following the ratio 1:3 (drug:polymer), which were made by hydroxypropylmethylcellulose (HPMC) and/or Eudragit® RS100 (EUD). The MP-1 formulation was composed of HPMC and EUD (1:1), MP-2 formulation was composed only of HPMC and MP-3 formulation was composed only of EUD. All formulations showed yielding around 50% and acceptable powder flowability. Drug content determination around 82.1-96.8% and 81.8-87% for acyclovir and curcumin, respectively. The microparticles had spherical shape, size within 11.5-15.3 μm, unimodal distribution and no chemical interactions among the components of the formulations. Of particular importance, the polymeric composition considerably influenced on the release profile of the drugs. The in vitro release experiment demonstrated that the microencapsulation provided a sustained release of acyclovir as well as increased the solubility of curcumin. Besides, mathematical modeling indicated that the experimental fit biexponential equation. Importantly, drugs microencapsulation promoted superior antiviral effect against BoVH-1 virus in comparison to their free form, which could be attributed to the improvement in the aforementioned physicochemical parameters. Therefore, these formulations could be promising technological drug carriers for acyclovir and curcumin, which highlight the great offering a potential alternative treatment for viral herpes.
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Affiliation(s)
- Jéssica Brandão Reolon
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Maicon Brustolin
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Thainá Accarini
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Gabriel Pedroso Viçozzi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Marcel Henrique Marcondes Sari
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Tecnologia Farmacêutica, Departamento de Farmácia Industrial, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria 97105-900, RS, Brazil
| | - Eduardo André Bender
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Sandra Elisa Haas
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Mario Celso Sperrotto Brum
- Programa de pós-graduação em Ciência Animal, Laboratório de Virologia, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - André Gündel
- Curso de Licenciatura em Física, Universidade Federal do Pampa, Campus Bagé, Avenida Maria Anunciação Gomes de Godoy, Bagé 96413-170, RS, Brazil
| | - Letícia Marques Colomé
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil.
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26
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Lu G, Ding Z, Wei Y, Lu X, Lu Q, Kaplan DL. Anisotropic Biomimetic Silk Scaffolds for Improved Cell Migration and Healing of Skin Wounds. ACS APPLIED MATERIALS & INTERFACES 2018; 10:44314-44323. [PMID: 30507148 DOI: 10.1021/acsami.8b18626] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Improved and more rapid healing of full-thickness skin wounds remains a major clinical need. Silk fibroin (SF) is a natural protein biomaterial that has been used in skin repair. However, there has been little effort aimed at improving skin healing through tuning the hierarchical microstructure of SF-based matrices and introducing multiple physical cues. Recently, enhanced vascularization was achieved with SF scaffolds with nanofibrous structures and tunable secondary conformation of the matrices. We hypothesized that anisotropic features in nanofibrous SF scaffolds would promote cell migration, neovascularization, and tissue regeneration in wounds. To address this hypothesis, SF nanofibers were aligned in an electric field to form anisotropic porous scaffolds after lyophilization. In vitro and in vivo studies indicated good cytocompatibility, and improved cell migration and vascularization than nanofibrous scaffolds without these anisotropic features. These improvements resulted in more rapid wound closure, tissue ingrowth, and the formation of new epidermis, as well as higher collagen deposition with a structure similar to the surrounding native tissue. The new epidermal layers and neovascularization were achieved by day 7, with wound healing complete by day 28. It was concluded that anisotropic SF scaffolds alone, without a need for growth factors and cells, promoted significant cell migration, vascularization, and skin regeneration and may have the potential to effectively treat dermal wounds.
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Affiliation(s)
- Guozhong Lu
- Department of Burns and Plastic Surgery , The Third Affiliated Hospital of Nantong University , Wuxi 214041 , 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 215123 , People's Republic of China
| | - Yuanyuan Wei
- Department of Maternity and Child Care Hospital , Lanzhou 730050 , Gansu Province , People's Republic of China
| | - Xiaohong Lu
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , People's Republic of China
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering , Tufts University , Medford , Massachusetts 02155 , United States
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27
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Simsolo EE, Eroğlu İ, Tanrıverdi ST, Özer Ö. Formulation and Evaluation of Organogels Containing Hyaluronan Microparticles for Topical Delivery of Caffeine. AAPS PharmSciTech 2018; 19:1367-1376. [PMID: 29380282 DOI: 10.1208/s12249-018-0955-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/06/2018] [Indexed: 12/14/2022] Open
Abstract
Cellulite is a dermal disorder including the extracellular matrix, the lymphatic and microcirculatory systems and the adipose tissue. Caffeine is used as the active moiety depending its preventive effect on localization of fat in the cellular structure. Hyaluronic acid (hyaluronan-HA) is a natural constituent of skin that generates formation and poliferation of new cells having a remarkable moisturizing ability. The aim of this study is to formulate HA microparticles loaded with caffeine via spray-drying method. Resulting microparticle formulations (33.97 ± 0.3 μm, span < 2, 88.56 ± 0.42% encapsulation efficiency) were distributed in lecithin organogels to maintain the proper viscosity for topical application. Following the characterization and cell culture studies, in vitro drug release and ex vivo permeation studies were performed. The accumulated amount of caffeine was twice higher than the aqueous solution for the microparticle-loaded organogels at 24 h (8262,673 μg/cm2versus 4676,691 μg/cm2). It was related to the sustained behaviour of caffeine release from the microparticles. As a result, lecithin organogel containing HA-encapsulated microparticles could be considered as suitable candidate formulations for efficient topical drug delivery system of caffeine. In addition to that, synergistic effect of this combination appears as a promising approach for long-acting treatment of cellulite.
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28
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Chen Q, Passos A, Balabani S, Chivu A, Zhao S, Azevedo HS, Butler P, Song W. Semi-interpenetrating network hyaluronic acid microgel delivery systems in micro-flow. J Colloid Interface Sci 2018; 519:174-185. [PMID: 29494879 DOI: 10.1016/j.jcis.2018.02.049] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 02/15/2018] [Accepted: 02/15/2018] [Indexed: 01/05/2023]
Abstract
Macroscopic hydrogels are commonly used as injectable scaffolds or fillers, however they may easily obstruct blood vessels, which poses risks and limits their clinical use. In the present study, three types of hyaluronic acid (HA)-based hydrogel micro-particles with non-covalent, covalent semi-interpenetrating and conventional 3D molecular networks, have been designed, fabricated and characterized. The micro-particles are spherical, biconcave or irregular in shape and their diameter ranged between 2.5 and 3.5 µm; their suspensions exhibit a tuneable viscosity, shear-thinning behaviour, dynamic stability and dispersity in microfluidic flow as a result of their specific particulate nature, providing thus a well-controlled injectable platform. Hydrogel particle suspensions also demonstrate an enhanced safety profile, in terms of the dispersity, cell safety, and hemocompatibility. In addition, Rhodamine 6G has successfully been loaded and released from the particles as a model for drug delivery. Functionalisation of hydrogel microparticles using synthetic polymers has been proven to be a cost-effective way to achieve desirable rheological properties and flow dynamic stability with improved physicochemical properties and biocompatibility in vitro, showing promise as a multifunctional biomedical material for various advanced surgical devices and therapies.
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Affiliation(s)
- Qiqing Chen
- Plastic Surgery Department, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London NW3 2PF, United Kingdom
| | - Andreas Passos
- Department of Mechanical Engineering, University College London, London NW1 2PS, United Kingdom
| | - Stavroula Balabani
- Department of Mechanical Engineering, University College London, London NW1 2PS, United Kingdom
| | - Alexandru Chivu
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London NW3 2PF, United Kingdom
| | - Shudong Zhao
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London NW3 2PF, United Kingdom
| | - Helena S Azevedo
- School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - Peter Butler
- Department of Plastic and Reconstructive Surgery, Royal Free London NHS Foundation Trust, London NW3 2PF, United Kingdom
| | - Wenhui Song
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London NW3 2PF, United Kingdom.
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Endocytic pathways of optimized resveratrol cubosomes capturing into human hepatoma cells. Biomed Pharmacother 2017; 93:561-569. [DOI: 10.1016/j.biopha.2017.06.093] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 06/17/2017] [Accepted: 06/23/2017] [Indexed: 12/17/2022] Open
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Dual release behavior of atorvastatin and alpha-lipoic acid from PLGA microspheres for the combination therapy in peripheral nerve injury. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.04.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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31
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Wound healing effects of collagen-laminin dermal matrix impregnated with resveratrol loaded hyaluronic acid-DPPC microparticles in diabetic rats. Eur J Pharm Biopharm 2017; 119:17-27. [PMID: 28461085 DOI: 10.1016/j.ejpb.2017.04.027] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 04/24/2017] [Accepted: 04/25/2017] [Indexed: 12/22/2022]
Abstract
An alternative formulation for the treatment of diabetic foot wounds that heal slowly is a requirement in pharmaceutical field. The aim of this study was to develop a dermal matrix consisting of skin proteins and lipids with an antioxidant that will enhance healing and balance the oxidative stress in the diabetic wound area due to the high levels of glucose. Thus a novel three dimensional collagen-laminin porous dermal matrix was developed by lyophilization. Resveratrol-loaded hyaluronic acid and dipalmitoylphosphatidylcholine microparticles were combined with this dermal matrix. Characterization, in vitro release, microbiological and in vivo studies were performed. Spherical microparticles were obtained with a high RSV encapsulation efficacy. The microparticles were well dispersed in the dermal matrix from the surface to deeper layers. Collagenase degraded dermal matrix, however the addition of RSV loaded microparticles delayed the degradation time. The release of RSV was sustained and reached 70% after 6h. Histological changes and antioxidant parameters in different treatment groups were investigated in full-thickness excision diabetic rat model. Collagen fibers were intense and improved by the presence of formulation without any signs of inflammation. The highest healing score was obtained with the dermal matrix impregnated with RSV-microparticles with an increased antioxidant activity. Collagen-laminin dermal matrix with RSV microparticles was synergistically effective due to presence of skin components in the formulation and controlled release achieved. This combination is a safe and promising option for the treatment of diabetic wounds requiring long recovery.
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Langasco R, Cadeddu B, Formato M, Lepedda AJ, Cossu M, Giunchedi P, Pronzato R, Rassu G, Manconi R, Gavini E. Natural collagenic skeleton of marine sponges in pharmaceutics: Innovative biomaterial for topical drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:710-720. [DOI: 10.1016/j.msec.2016.09.041] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/05/2016] [Accepted: 09/21/2016] [Indexed: 10/21/2022]
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33
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Tuncay Tanrıverdi S, Cheaburu-Yilmaz CN, Carbone S, Özer Ö. Preparation and in vitro evaluation of melatonin-loaded HA/PVA gel formulations. Pharm Dev Technol 2016; 23:815-825. [PMID: 27915492 DOI: 10.1080/10837450.2016.1268158] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Melatonin-loaded hyaluronic acid (HA) and poly(vinyl alcohol) (PVA) gels were prepared by using freeze-thaw technique and an emulsion method followed by freeze-thaw technique to produce a new synergistic system for topical application. Freeze-thaw hydrogels and emulgels were characterized by means of Fourier transform infrared spectroscopy, rheology and swelling tests. The porous structure of the hydrogels was shown by scanning electron microscopy observations and thermal properties were tested by differential scanning calorimetry measurements. Bioadhesion and in vitro release characterization of formulations were performed by texture profile analysis and dialysis bag method, respectively. The pore size of both formulations was ranging from 900 nm to 30 μm. Melatonin showed a good compatibility with the polymeric matrices as the pores were smaller for the drug-loaded systems. In vitro release studies showed that the release was improved by emulgel formulations. After 24 h, the release percentage was found to be 13.240% ± 1.094 and 15.192% ± 2.270 for hydrogel and emulgel, respectively. Emulgels had better bioadhesion properties than simple freeze-thaw samples. As a conclusion, regarding the in vitro characterization studies HA and PVA hydrogel and emulgel formulations and their lyophilized forms could be promising systems for topical application of melatonin.
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Affiliation(s)
- Sakine Tuncay Tanrıverdi
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Ege University , Bornova-İzmir , Turkey
| | - Catalina Natalia Cheaburu-Yilmaz
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Ege University , Bornova-İzmir , Turkey.,b Department of Physical Chemistry of Polymers , "Petru Poni" Institute of Macromolecular Chemistry , Iasi , Romania
| | - Sonia Carbone
- c Faculty of Pharmacy , University of Turin , Torino , Italy
| | - Özgen Özer
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Ege University , Bornova-İzmir , Turkey
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Affiliation(s)
- James Melrose
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute Northern Sydney Local Health District, St. Leonards, NSW, Australia
- Sydney Medical School, Royal North Shore Hospital, The University of Sydney, Camperdown, NSW, Australia
- School of Biomedical Engineering, The University of New South Wales, Kensington, NSW, Australia
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Fouda MM, Abdel-Mohsen A, Ebaid H, Hassan I, Al-Tamimi J, Abdel-Rahman RM, Metwalli A, Alhazza I, Rady A, El-Faham A, Jancar J. Wound healing of different molecular weight of hyaluronan; in-vivo study. Int J Biol Macromol 2016; 89:582-91. [DOI: 10.1016/j.ijbiomac.2016.05.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 05/02/2016] [Accepted: 05/05/2016] [Indexed: 01/16/2023]
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36
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Castangia I, Manca ML, Catalán-Latorre A, Maccioni AM, Fadda AM, Manconi M. Phycocyanin-encapsulating hyalurosomes as carrier for skin delivery and protection from oxidative stress damage. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:75. [PMID: 26886823 DOI: 10.1007/s10856-016-5687-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 02/04/2016] [Indexed: 06/05/2023]
Abstract
The phycobiliprotein phycocyanin, extracted from Klamath algae, possesses important biological properties but it is characterized by a low bioavailability due to its high molecular weight. To overcome the bioavailability problems, phycocyanin was successfully encapsulated, using an environmentally-friendly method, into hyalurosomes, a new kind of phospholipid vesicles immobilised with hyaluronan sodium salt by the simple addition of drug/sodium hyaluronate water dispersion to phospholipids. Liposomes were used as a comparison. Vesicles were small in size and homogeneously dispersed, being the mean size always smaller than 150 nm and PI never higher than 0.31. Liposomes were unilamellar and spherical, the addition of the polymer slightly modify the vesicular shape which remain spherical, while the addition of PEG improve the lamellarity of vesicles being multilamellar vesicles. In all cases phycocyanin was encapsulated in good amount especially using hyalurosomes and PEG hyalurosomes (65 and 61% respectively). In vitro penetration studies suggested that hyalurosomes favoured the phycocyanin deposition in the deeper skin layers probably thanks to their peculiar hyaluronan-phospholipid structure. Moreover, hyalurosomes were highly biocompatible and improved phycocyanin antioxidant activity on stressed human keratinocytes respect to the drug solution.
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Affiliation(s)
- Ines Castangia
- Dipartimento di Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - Maria Letizia Manca
- Dipartimento di Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy.
| | - Ana Catalán-Latorre
- Dipartimento di Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
- Department of Pharmacy and Pharmaceutical Technology, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
- Instituto de Reconocimiento Molecular y Desarrollo Tecnológico, Centro Mixto Universidad Politécnica de Valencia, Universidad de Valencia, Valencia, Spain
| | - Anna Maria Maccioni
- Dipartimento di Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - Anna Maria Fadda
- Dipartimento di Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - Maria Manconi
- Dipartimento di Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
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37
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Janda J, Nfonsam V, Calienes F, Sligh JE, Jandova J. Modulation of ROS levels in fibroblasts by altering mitochondria regulates the process of wound healing. Arch Dermatol Res 2016; 308:239-48. [PMID: 26873374 DOI: 10.1007/s00403-016-1628-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 01/14/2016] [Accepted: 01/28/2016] [Indexed: 01/02/2023]
Abstract
Mitochondria are the major source of reactive oxygen species (ROS) in fibroblasts which are thought to be crucial regulators of wound healing with a potential to affect the expression of nuclear genes involved in this process. ROS generated by mitochondria are involved in all stages of tissue repair process but the regulation of ROS-generating system in fibroblasts still remains poorly understood. The purpose of this study was to better understand molecular mechanisms of how the regulation of ROS levels generated by mitochondria may influence the process of wound repair. Cybrid model system of mtDNA variations was used to study the functional consequences of altered ROS levels on wound healing responses in a uniform nuclear background of cultured ρ(0) fibroblasts. Mitochondrial ROS in cybrids were modulated by antioxidants that quench ROS to examine their ability to close the wound. Real-time PCR arrays were used to investigate whether ROS generated by specific mtDNA variants have the ability to alter expression of some key nuclear-encoded genes central to the wound healing response and oxidative stress. Our data suggest levels of mitochondrial ROS affect expression of some nuclear encoded genes central to wound healing response and oxidative stress and modulation of mitochondrial ROS by antioxidants positively affects in vitro process of wound closure. Thus, regulation of mitochondrial ROS-generating system in fibroblasts can be used as effective natural redox-based strategy to help treat non-healing wounds.
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Affiliation(s)
- Jaroslav Janda
- University of Arizona Cancer Center, 1515 N Campbell Avenue, Tucson, AZ, 85724, USA
| | - Valentine Nfonsam
- University of Arizona Cancer Center, 1515 N Campbell Avenue, Tucson, AZ, 85724, USA.,Department of Surgery, Division of Surgical Oncology, University of Arizona, 1501 N Campbell Avenue, Tucson, AZ, 85724, USA
| | - Fernanda Calienes
- University of Arizona Cancer Center, 1515 N Campbell Avenue, Tucson, AZ, 85724, USA
| | - James E Sligh
- University of Arizona Cancer Center, 1515 N Campbell Avenue, Tucson, AZ, 85724, USA.,Department of Medicine, Division of Dermatology, University of Arizona, 1515 N Campbell Avenue, Tucson, AZ, 85724, USA
| | - Jana Jandova
- University of Arizona Cancer Center, 1515 N Campbell Avenue, Tucson, AZ, 85724, USA. .,Department of Surgery, Division of Surgical Oncology, University of Arizona, 1501 N Campbell Avenue, Tucson, AZ, 85724, USA. .,Department of Medicine, Division of Dermatology, University of Arizona, 1515 N Campbell Avenue, Tucson, AZ, 85724, USA.
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38
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Allon I, Touitou E. Scrolls: novel microparticulate systems for enhanced delivery to/across the skin. Drug Deliv Transl Res 2015; 6:24-37. [PMID: 26644212 DOI: 10.1007/s13346-015-0264-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe the scroll system as a new microparticulate structured delivery system for enhanced delivery to/across the skin. The basic components of the scroll system are non-ionic surface active of the type of alkyl polyglycol ethers and a glycol. The unique structures are preserved with addition of various ingredients such as polymers, vegetable oils, pharmaceuticals, and permeation enhancers but are dismissed when amphiphile is withdrawn. The microparticles have a unique scroll structure with multiple "wrapping." Besides enabling superior permeation of drugs into/across the skin, the drugs delivered by scroll systems were more effective in vitro and in vivo compared to controls. Model drugs presented high entrapment capacity in scroll systems. The systems are stable over time and are safe for skin application. In order to form, they require a small number of ingredients, simple preparation method, and are environment friendly. The scroll systems may be new potential tools in the dermal/transdermal pharmaceutical and cosmetic industry.
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Affiliation(s)
- Irit Allon
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, POB 12065, Jerusalem, 91120, Israel
| | - Elka Touitou
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, POB 12065, Jerusalem, 91120, Israel.
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Ruivo J, Francisco C, Oliveira R, Figueiras A. The main potentialities of resveratrol for drug delivery systems. BRAZ J PHARM SCI 2015. [DOI: 10.1590/s1984-82502015000300002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resveratrol (RSV), a natural polyphenol found in grapes, was found to be effective in the prevention and therapy of several diseases, however, it does have unfavourable physicochemical properties. In this context, an increasing number of studies have aimed at developing novel therapeutic systems for its delivery to overcome these disadvantages. This review focuses on the mechanisms of action and therapeutic applications. Finally, it also describes some tested formulations for RSV administration, controlled release and targeting, developed with the purpose of increasing RSV bioavailability.
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