1
|
Braťka P, Fenclová T, Hlinková J, Uherková L, Šebová E, Hefka Blahnová V, Hedvičáková V, Žižková R, Litvinec A, Trč T, Rosina J, Filová E. The Preparation and Biological Testing of Novel Wound Dressings with an Encapsulated Antibacterial and Antioxidant Substance. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3824. [PMID: 36364600 PMCID: PMC9656126 DOI: 10.3390/nano12213824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Chronic wounds represent a significant socio-economic problem, and the improvement of their healing is therefore an essential issue. This paper describes the preparation and biological properties of a novel functionalized nanofiber wound dressing consisting of a polycaprolactone nanofiber carrier modified by a drug delivery system, based on the lipid particles formed by 1-tetradecanol and encapsulated gentamicin and tocopherol acetate. The cytotoxicity of extracts was tested using a metabolic activity assay, and the antibacterial properties of the extracts were tested in vitro on the bacterial strains Staphylococcus aureus and Pseudomonas aeruginosa. The effect of the wound dressing on chronic wound healing was subsequently tested using a mouse model. Fourteen days after surgery, the groups treated by the examined wound cover showed a lower granulation, reepithelization, and inflammation score compared to both the uninfected groups, a lower dermis organization compared to the control, a higher scar thickness compared to the other groups, and a higher thickness of hypodermis and bacteria score compared to both the uninfected groups. This work demonstrates the basic parameters of the safety (biocompatibility) and performance (effect on healing) of the dressing as a medical device and indicates the feasibility of the concept of its preparation in outpatient conditions using a suitable functionalization device.
Collapse
Affiliation(s)
- Petr Braťka
- Faculty of Biomedical Engineering, Czech Technical University, Náměstí Sítná 3105, 27201 Kladno, Czech Republic
- Grade Medical s.r.o., Náměstí Sítná 3105, 27201 Kladno, Czech Republic
| | - Taťána Fenclová
- Grade Medical s.r.o., Náměstí Sítná 3105, 27201 Kladno, Czech Republic
| | - Jana Hlinková
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Lenka Uherková
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Eva Šebová
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Veronika Hefka Blahnová
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Věra Hedvičáková
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Radmila Žižková
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Andrej Litvinec
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| | - Tomáš Trč
- Grade Medical s.r.o., Náměstí Sítná 3105, 27201 Kladno, Czech Republic
| | - Jozef Rosina
- Faculty of Biomedical Engineering, Czech Technical University, Náměstí Sítná 3105, 27201 Kladno, Czech Republic
| | - Eva Filová
- Department of Tissue Engineering, Institute of Experimental Medicine of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
| |
Collapse
|
2
|
Chong WT, Tan CP, Cheah YK, Lai OM. In-vitro and in-vivo evaluations of tocotrienol-rich nanoemulsified system on skin wound healing. PLoS One 2022; 17:e0267381. [PMID: 35613124 PMCID: PMC9132311 DOI: 10.1371/journal.pone.0267381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 04/08/2022] [Indexed: 12/02/2022] Open
Abstract
Proper wound healing is vital for the survival of higher organisms. Responses to skin injury can lead to complications such as scar formation that can affect the quality of life. In this study, keratinocytes migration (scratch assay) and zebrafish tail regeneration experiments were used to evaluate the wound healing effect of a tocotrienol-based nanoemulsified (NE) system against ascorbic acid and phosphate-buffered saline (PBS) as positive and negative controls, respectively. MTT assay provided a concentration range of 0.35–8.75 μg/ml of nanoemulsion that produced cell viability more than 100%. After 24 hours of treatment, the wound closure of keratinocytes were found to be significantly faster by 73.76%, 63.37% and 35.56%, respectively when treated with 3.50 μg/ml and 1.75 μg/ml of NE compared to the blank. The lethal concentration at 50% (LC50 value) obtained from acute and prolonged toxicity was almost similar, which was 4.6 mg/ml and 5.0 mg/ml, respectively. Growth of zebrafish tail regeneration treated with NE at a concentration of 2.5 mg/ml was significantly faster than the untreated zebrafish, which regenerated to 40% on the fifth day, more than 60% on the tenth day of treatment and fully recovered at the twentieth day. In conclusion, these results showed the potential of the tocotrienols-based nanoemulsified system in enhancing wound healing through accelerated wound closure.
Collapse
Affiliation(s)
- Wai Ting Chong
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Chin Ping Tan
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Yoke Kqueen Cheah
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Oi Ming Lai
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Bioprocess Technology, Faculty Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- * E-mail:
| |
Collapse
|
3
|
Kurashiki T, Horikoshi Y, Kamizaki K, Sunaguchi T, Hara K, Morimoto M, Kitagawa Y, Nakaso K, Otsuki A, Matsura T. Molecular mechanisms underlying the promotion of wound repair by coenzyme Q10: PI3K/Akt signal activation via alterations to cell membrane domains. J Clin Biochem Nutr 2022; 70:222-230. [PMID: 35692678 PMCID: PMC9130066 DOI: 10.3164/jcbn.21-141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/04/2021] [Indexed: 11/22/2022] Open
Abstract
Coenzyme Q10 (CoQ10) promotes wound healing in vitro and in vivo. However, the molecular mechanisms underlying the promoting effects of CoQ10 on wound repair remain unknown. In the present study, we investigated the molecular mechanisms through which CoQ10 induces wound repair using a cellular wound-healing model. CoQ10 promoted wound closure in a dose-dependent manner and wound-mediated cell polarization after wounding in HaCaT cells. A comparison with other CoQ homologs, benzoquinone derivatives, and polyisoprenyl compounds suggested that the whole structure of CoQ10 is required for potent wound repair. The phosphorylation of Akt after wounding and the plasma membrane translocation of Akt were elevated in CoQ10-treated cells. The promoting effect of CoQ10 on wound repair was abrogated by co-treatment with a phosphatidylinositol 3-kinase (PI3K) inhibitor. Immunohistochemical and biochemical analyses showed that CoQ10 increased the localization of caveolin-1 (Cav-1) to the apical membrane domains of the cells and the Cav-1 content in the membrane-rich fractions. Depletion of Cav-1 suppressed CoQ10-mediated wound repair and PI3K/Akt signaling activation in HaCaT cells. These results indicated that CoQ10 increases the translocation of Cav-1 to the plasma membranes, activating the downstream PI3K/Akt signaling pathway, and resulting in wound closure in HaCaT cells.
Collapse
Affiliation(s)
- Tatsuyuki Kurashiki
- Division of Biochemistry, Department of Pathophysiological and Therapeutic Sciences, Faculty of Medicine, Tottori University
| | - Yosuke Horikoshi
- Division of Biochemistry, Department of Pathophysiological and Therapeutic Sciences, Faculty of Medicine, Tottori University
| | - Koki Kamizaki
- Division of Cell Physiology, Department of Physiology and Cell Biology, Graduate School of Medicine, Kobe University
| | - Teppei Sunaguchi
- Division of Biochemistry, Department of Pathophysiological and Therapeutic Sciences, Faculty of Medicine, Tottori University
| | - Kazushi Hara
- Division of Biochemistry, Department of Pathophysiological and Therapeutic Sciences, Faculty of Medicine, Tottori University
| | - Masaki Morimoto
- Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, Faculty of Medicine, Tottori University
| | - Yoshinori Kitagawa
- Division of Anesthesiology and Critical Care Medicine, Department of Surgery, Faculty of Medicine, Tottori University
| | - Kazuhiro Nakaso
- Division of Biochemistry, Department of Pathophysiological and Therapeutic Sciences, Faculty of Medicine, Tottori University
| | - Akihiro Otsuki
- Division of Anesthesiology and Critical Care Medicine, Department of Surgery, Faculty of Medicine, Tottori University
| | - Tatsuya Matsura
- Division of Biochemistry, Department of Pathophysiological and Therapeutic Sciences, Faculty of Medicine, Tottori University
| |
Collapse
|
4
|
Peng Y, Liu X, Jin Z, Liu H, Xu C. Scribble downregulation in adenomyosis compromises endometrial stromal decidualization by decreasing FOXO1 expression. Hum Reprod 2021; 37:93-108. [PMID: 34746956 DOI: 10.1093/humrep/deab234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 10/03/2021] [Indexed: 12/14/2022] Open
Abstract
STUDY QUESTION Does Scribble (SCRIB) contribute to aberrant decidualization of endometrial stromal cells (ESC) in adenomyosis? SUMMARY ANSWER SCRIB knockdown impairs decidualization of ESC by decreasing Fork-head box O1A (FOXO1) expression through the protein kinase B (AKT) and atypical protein kinase C (aPKC) activated pathways. WHAT IS KNOWN ALREADY Stromal SCRIB is required for primary decidual zone formation and pregnancy success in mice. In our previous studies, decidualization was dampened in ESC isolated from adenomyosis patients, yet the underlying molecular mechanisms remain elusive. STUDY DESIGN, SIZE, DURATION Eutopic endometrium tissue samples from diffuse adenomyosis and non-adenomyosis patients in proliferative, early-secretory and mid-secretory phase (n = 10 per phase for each group) were explored. In parallel, in vitro decidualization studies were carried out in ESC isolated from non-adenomyosis women (n = 8). PARTICIPANTS/MATERIALS, SETTING, METHODS The endometrial SCRIB expression was analyzed using immunohistochemistry staining and western blot. Quantitative RT-PCR (qRT-PCR), western blot and immunofluorescence staining were used to explore the expression of SCRIB in ESC during in vitro decidualization. siRNA-mediated SCRIB knockdown followed by decidual markers expression analysis, flow cytometry for cell cycle analysis and phalloidin staining for morphological analysis were performed to examine the function of SCRIB in ESC decidualization. RNA-sequencing was performed to examine the SCRIB-mediated transcriptional changes in decidualized ESC (DSC). Rescue experiments using an AKT inhibitor MK2206 and aPKC inhibitor NSC37044 were used to investigate the signaling pathways through which could mediate SCRIB-regulated FOXO1 protein expression and ESC decidualization. MAIN RESULTS AND THE ROLE OF CHANCE We found that the expression of SCRIB in the mid-secretory phase eutopic endometrial stroma of adenomyosis patients was significantly lower than that of non-adenomyosis. SCRIB knockdown reduced the expression of decidual markers, abrogated the epithelioid-like morphological changes, inhibited the mesenchymal-to-epithelial transitions process and promoted the cell cycle progression of ESC during in vitro decidualization. SCRIB knockdown-induced decidualization defects were attributed to a decrease in expression of transcription factor FOXO1, known to regulate decidualization. Furthermore, we found that SCRIB knockdown induced the aberrant activation of AKT and aPKC, which led to FOXO1 phosphorylation and degradation. Rescue assay confirmed that restoring the expression of FOXO1 effectively reversed the decidualization defects and cell cycle progression caused by SCRIB knockdown. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION In this study, it was demonstrated that SCRIB knockdown mediated the activation of AKT and aPKC, contributing to FOXO1 degradation and aberrant decidualization, however, the molecular link between AKT and aPKC signaling was not determined, and still requires further exploration. WIDER IMPLICATIONS OF THE FINDINGS Our findings support the hypothesis that adenomyosis interferes with embryo implantation due to insufficient endometrial receptivity. Abnormal decidualization of the endometrial stroma may clarify the possible association between adenomyosis and infertility. Our findings may be clinically useful for counseling and treatment of infertile adenomyosis patients. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by the National Natural Science Foundation of China (82001523 and 82171639). The authors have no conflicts of interest to disclose. TRIAL REGISTRATION NUMBER N/A.
Collapse
Affiliation(s)
- Yaoming Peng
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Xiaoxia Liu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Zhixing Jin
- Department of Obstetrics and Gynecology, The First Hospital Affiliated Soochow University, Suzhou, China
| | - Haiou Liu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Congjian Xu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China.,Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai, China
| |
Collapse
|
5
|
Woonnoi W, Chotphruethipong L, Tanasawet S, Benjakul S, Sutthiwong N, Sukketsiri W. Hydrolyzed Collagen from Salmon Skin Increases the Migration and Filopodia Formation of Skin Keratinocytes by Activation of FAK/Src Pathway. POL J FOOD NUTR SCI 2021. [DOI: 10.31883/pjfns/141515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
6
|
Abate M, Citro M, Pisanti S, Caputo M, Martinelli R. Keratinocytes Migration Promotion, Proliferation Induction, and Free Radical Injury Prevention by 3-Hydroxytirosol. Int J Mol Sci 2021; 22:ijms22052438. [PMID: 33670966 PMCID: PMC7957601 DOI: 10.3390/ijms22052438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 12/11/2022] Open
Abstract
3-hydroxytyrosol (HT) is the main phenolic compound found in olive oil with known antioxidant, anti-inflammatory, and antimicrobial properties in several dermatological conditions, both when taken in the form of olive oil or pure in cosmeceutical formulations. To date, its direct effect on the wound healing process and the molecular mechanisms involved have not yet been elucidated. Thus, in the present study, we aimed to explore its effects in vitro in epidermal keratinocyte cultures focusing on the molecular mechanism implied. HT was able to induce keratinocyte proliferation in the low micromolar range, increasing the expression of cyclin dependent kinases fundamental for cell cycle progression such as CDK2 and CDK6. Furthermore, it increased cell migration through the activation of tissue remodeling factors such as matrix metalloproteinase-9 (MMP-9) protein. Then, we evaluated whether HT also showed antioxidant activity at this concentration range, protecting from H2O2-induced cytotoxicity. The HT prevented the activation of ATM serine/threonine kinase (ATM), Checkpoint kinase 1 (Chk1), Checkpoint kinase 2 (Chk2), and p53, reducing the number of apoptotic cells. Our study highlighted novel pharmacological properties of HT, providing the first evidence of its capability to induce keratinocyte migration and proliferation required for healing processes and re-epithelialization.
Collapse
|
7
|
Kim HB, Won KJ, Kim DY, Kang HM, Lee HM. Stimulatory Effects of Paederia foetida Flower Absolute on the Skin Wound and Barrier Repair Activities of Keratinocytes. Chem Biodivers 2020; 17:e2000506. [PMID: 32889769 DOI: 10.1002/cbdv.202000506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/04/2020] [Indexed: 12/19/2022]
Abstract
Paederia foetida (PF) has antidiarrheal, antidiabetic, and anti-inflammatory activities. However, its biological activities on skin remain unclear. In this study, we examined the effect of PF flower absolute (PFFA) on skin wound healing- and skin barrier-linked responses in human epidermal keratinocytes (HaCaT cells). PFFA contained 23 components and increased the proliferation and sprout outgrowth of HaCaT cells and modestly increased migration. PFFA enhanced the phosphorylation levels of extracellular signal-regulated kinase1/2, serine/threonine-specific protein kinase (AKT), and p38 mitogen-activated protein kinase (MAPK) in HaCaT cells, and upregulated type I and IV collagen synthesis and filaggrin (an epidermal barrier protein) expression in HaCaT cells. These findings suggest PFFA may promote skin wound repair by stimulating migratory and proliferative activities (probably through the AKT/MAPK pathway), collagen synthesis, and skin barrier repair by upregulating the expressions of filaggrin in epidermal keratinocytes. Therefore, PFFA may be useful for developing agents that enhance skin wound and barrier-repair functions.
Collapse
Affiliation(s)
- Ha Bin Kim
- Division of Cosmetic and Biotechnology, College of Life and Health Sciences, Hoseo University, Asan, 31499, South Korea.,National Institute of Forest Science, Seoul, 02455, South Korea
| | - Kyung Jong Won
- Department of Physiology and Medical Science, School of Medicine, Konkuk University, Chungju, 27478, South Korea
| | - Do Yoon Kim
- Division of Cosmetic and Biotechnology, College of Life and Health Sciences, Hoseo University, Asan, 31499, South Korea
| | - Hye Min Kang
- Division of Cosmetic and Biotechnology, College of Life and Health Sciences, Hoseo University, Asan, 31499, South Korea
| | - Hwan Myung Lee
- Division of Cosmetic and Biotechnology, College of Life and Health Sciences, Hoseo University, Asan, 31499, South Korea
| |
Collapse
|
8
|
Polysaccharides from Gracilaria lemaneiformis promote the HaCaT keratinocytes wound healing by polarised and directional cell migration. Carbohydr Polym 2020; 241:116310. [DOI: 10.1016/j.carbpol.2020.116310] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/16/2020] [Accepted: 04/13/2020] [Indexed: 01/25/2023]
|
9
|
|
10
|
Factorial design-assisted supercritical carbon-dioxide extraction of cytotoxic active principles from Carica papaya leaf juice. Sci Rep 2019; 9:1716. [PMID: 30737457 PMCID: PMC6368614 DOI: 10.1038/s41598-018-37171-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023] Open
Abstract
The aims of this study are to investigate the selective cytotoxic activity of supercritical carbon dioxide (scCO2)-extracted freeze-dried leaf juice (FDLJ) of Carica papaya on squamous cell carcinoma (SCC25) cells, and to delineate the best small scale extraction parameters allowing maximal extract activity. Using scCO2 as a solvent, six operating parameters were studied and the supercritical fluid extraction (SFE) process investigated using a factorial design 26-2. The processing values promoting cytotoxic activity towards SCC-25 are: high pressure (250 bar), low temperature (35 °C), extended processing time (180 minutes), as well as a large amount of starting material (5 g). The factorial experimental design successfully identified the key parameters controlling the SFE of molecules cytotoxic to SCC cells from C. papaya juice. This study also validated the extraction method and showed that the SFE yield was reproducible. The chromatographic and mass spectrometric profiles of the scCO2 extract acquired with high-resolution quadrupole time-of-flight mass spectrometry (LC-QToF-MS) were used to tentatively identify the bioactive compounds using comparative analysis. The principal compounds were likely to be mainly vitamins and phytosterols, some of which are documented to be cytotoxic to cancer cells.
Collapse
|
11
|
Camillo L, Gironi LC, Savoia P. Alpha-tocopherol promotes metabolic activity and cell migration in human primary keratinocytes and fibroblasts from skin cancer patients. GIORN ITAL DERMAT V 2018; 155:521-524. [PMID: 30251801 DOI: 10.23736/s0392-0488.18.06075-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lara Camillo
- Department of Health Sciences, A. Avogadro University of Eastern Piedmont, Novara, Italy
| | - Laura C Gironi
- Department of Health Sciences, A. Avogadro University of Eastern Piedmont, Novara, Italy -
| | - Paola Savoia
- Department of Health Sciences, A. Avogadro University of Eastern Piedmont, Novara, Italy
| |
Collapse
|
12
|
Tocopherol-loaded transfersomes: In vitro antioxidant activity and efficacy in skin regeneration. Int J Pharm 2018; 551:34-41. [PMID: 30201294 DOI: 10.1016/j.ijpharm.2018.09.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 11/22/2022]
Abstract
Transfersomes were prepared by using different polysorbates (i.e., Tween 20, 40, 60 and 80) and loaded with tocopherol acetate, a naturally-occurring phenolic compound with antioxidant activity. The vesicles showed unilamellar morphology, small size (∼85 nm), low polydispersity index (≤0.27), and high entrapment efficiency, which increased as a function of the length of the Tween fatty acid chain (from 72% to 90%). The long-term stability of the formulations was evaluated by means of the Turbiscan™ technology, which indicated their good stability, irrespective of the Tween used. The vesicles efficiently delivered tocopherol to the skin, and showed biocompatibility in vitro in keratinocytes and fibroblasts. Regardless of the Tween used, the transfersomes were able to protect skin cells from the oxidative damage induced by hydrogen peroxide. Additionally, transfersomes promoted cell proliferation and migration, which resulted in an acceleration of skin wound closure. These results demonstrated that tocopherol-loaded transfersomes bear potential as topical delivery system with antioxidant activity and wound healing properties.
Collapse
|