1
|
Popp C, Miller W, Eide C, Tolar J, McGrath JA, Ebens CL. Beyond the Surface: A Narrative Review Examining the Systemic Impacts of Recessive Dystrophic Epidermolysis Bullosa. J Invest Dermatol 2024:S0022-202X(24)00198-2. [PMID: 38613531 DOI: 10.1016/j.jid.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/09/2024] [Accepted: 03/02/2024] [Indexed: 04/15/2024]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a rare genetic disease resulting from inadequate type VII collagen (C7). Although recurrent skin blisters and wounds are the most apparent disease features, the impact of C7 loss is not confined to the skin and mucous membranes. RDEB is a systemic disease marred by chronic inflammation, fibrotic changes, pain, itch, and anemia, significantly impacting QOL and survival. In this narrative review, we summarize these systemic features of RDEB and promising research avenues to address them.
Collapse
Affiliation(s)
- Courtney Popp
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - William Miller
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Cindy Eide
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jakub Tolar
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA; MHealth Fairview Masonic Children's Hospital, Minneapolis, Minnesota, USA
| | - John A McGrath
- St. John's Institute of Dermatology, Guy's Hospital, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Christen L Ebens
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA; MHealth Fairview Masonic Children's Hospital, Minneapolis, Minnesota, USA.
| |
Collapse
|
2
|
Abstract
Birch bark extract (Filsuvez®; also known as the developmental name Oleogel-S10), a topical gel consisting of 10% dry birch bark extract and 90% sunflower oil, is the first therapy approved in the EU and UK for the treatment of partial thickness wounds associated with dystrophic and junctional epidermolysis bullosa (EB) in patients aged ≥ 6 months old. In the pivotal double-blind, randomized, vehicle-controlled, phase III EASE trial in patients with EB, the primary endpoint was met, in which birch bark extract relative to control gel significantly increased the proportion of patients with first complete target wound closure within 45 days. Moreover, patients treated with birch bark extract demonstrated several other positive findings in improving wound burden and wound-associated symptoms. The clinical benefits of birch bark extract were maintained in the 24-month open-label extension period of the EASE trial. Birch bark extract was generally well tolerated in patients with EB, with the tolerability profile being similar to that of control gel. Current evidence indicates that birch bark extract is an effective, emerging treatment option for patients with dystrophic and junctional EB.
Collapse
Affiliation(s)
- Young-A Heo
- Springer Nature, Mairangi Bay, Private Bag 65901, Auckland, 0754, New Zealand.
| |
Collapse
|
3
|
Riekstina U, Vitolina S, Goluba K, Jekabsons K, Muceniece R, Berzins R, Rizhikovs J, Godina D, Teresko A, Paze A. Effect of Betulin Colloidal Particles on Proliferation and Cytokine Secretion of Human Skin Fibroblasts. PLANTS (BASEL, SWITZERLAND) 2023; 12:3088. [PMID: 37687335 PMCID: PMC10490372 DOI: 10.3390/plants12173088] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
The aim of the study was to obtain untreated and treated betulin colloidal particles and assess their effect on the viability, morphology, proliferation and cytokine secretion of human dermal fibroblasts. To improve bioavailability, betulin treatment was performed by an antisolvent precipitation technique. The average particle size after treatment in the aqueous dispersion decreased from 552.9 ± 11.3 to 278.2 ± 1.6 nm. Treated betulin colloidal particles showed no cytotoxicity up to a concentration of 400 µg·mL-1 in the colorimetric tetrazolium salt viability test (CCK-8). Moreover, the cell morphology was not changed in the presence of betulin colloidal particles at a concentration range from 0.78 to 400 µg·mL-1. The obtained results also show that betulin particles induce the secretion of the proinflammatory and angiogenesis-stimulating cytokine IL-8. However, further studies would be required to clarify the mechanism of IL-8 secretion induction.
Collapse
Affiliation(s)
- Una Riekstina
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (U.R.); (K.G.); (K.J.); (R.M.)
| | - Sanita Vitolina
- Biorefinery Laboratory, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.)
| | - Karina Goluba
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (U.R.); (K.G.); (K.J.); (R.M.)
| | - Kaspars Jekabsons
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (U.R.); (K.G.); (K.J.); (R.M.)
| | - Ruta Muceniece
- Faculty of Medicine, University of Latvia, LV-1004 Riga, Latvia; (U.R.); (K.G.); (K.J.); (R.M.)
| | - Rudolfs Berzins
- Biorefinery Laboratory, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.)
| | - Janis Rizhikovs
- Biorefinery Laboratory, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.)
| | - Daniela Godina
- Biorefinery Laboratory, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.)
| | | | - Aigars Paze
- Biorefinery Laboratory, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.)
| |
Collapse
|
4
|
Adepoju FO, Duru KC, Li E, Kovaleva EG, Tsurkan MV. Pharmacological Potential of Betulin as a Multitarget Compound. Biomolecules 2023; 13:1105. [PMID: 37509141 PMCID: PMC10377123 DOI: 10.3390/biom13071105] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Betulin is a natural triterpene, usually from birch bark, known for its potential wound-healing properties. Despite having a wide range of pharmacological targets, no studies have proposed betulin as a multitarget compound. Betulin has protective effects against cardiovascular and liver diseases, cancer, diabetes, oxidative stress, and inflammation. It reduces postprandial hyperglycemia by inhibiting α-amylase and α-glucosidase activity, combats tumor cells by inducing apoptosis and inhibiting metastatic proteins, and modulates chronic inflammation by blocking the expression of proinflammatory cytokines via modulation of the NFκB and MAPKs pathways. Given its potential to influence diverse biological networks with high target specificity, it can be hypothesized that betulin may eventually become a new lead for drug development because it can modify a variety of pharmacological targets. The summarized research revealed that the diverse beneficial effects of betulin in various diseases can be attributed, at least in part, to its multitarget anti-inflammatory activity. This review focuses on the natural sources, pharmacokinetics, pharmacological activity of betulin, and the multi-target effects of betulin on signaling pathways such as MAPK, NF-κB, and Nrf2, which are important regulators of the response to oxidative stress and inflammation in the body.
Collapse
Affiliation(s)
- Feyisayo O Adepoju
- Department of Technology for Organic Synthesis, Chemical Technology Institute, Ural Federal University, Mira 19, 620002 Yekaterinburg, Russia
| | - Kingsley C Duru
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, NJ 08854-8021, USA
| | - Erguang Li
- Medical School, Nanjing University, Nanjing, 22 Hankou Road, Nanjing 210093, China
| | - Elena G Kovaleva
- Department of Technology for Organic Synthesis, Chemical Technology Institute, Ural Federal University, Mira 19, 620002 Yekaterinburg, Russia
| | | |
Collapse
|
5
|
Facile preparation of a novel nanoemulsion based hyaluronic acid hydrogel loading with Poria cocos triterpenoids extract for wound dressing. Int J Biol Macromol 2023; 226:1490-1499. [PMID: 36442559 DOI: 10.1016/j.ijbiomac.2022.11.261] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/14/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
Diabetic wounds have been a serious concern for human health owing to their long chronic inflammation and reduced vascularization. Herein, we report novel oil-in-water (o/w) nanoemulsions (NEs) containing Poria cocos triterpenes extract (PTE) to fabricate hyaluronic acid hydrogels (PTE-NEs) for the treatment of diabetic wounds. The size and morphology of NEs are analyzed by transmission electron microscope (TEM) and Zeta potential, respectively. Furthermore, the rheological behavior and morphology of synthesized hydrogels are also determined. It is found that PTE-NEs gel has a homogeneous and porous structure with good elastic properties. In addition, in vitro experiments show that the cell viability of PTE-NEs gel is >85 % without cytotoxicity. In vivo experiments of diabetic rats demonstrate that the PTE-NEs gel can not only significantly accelerate diabetic wound healing, collagen deposition, M2 macrophage polarization, and angiogenesis, but also inhibit inflammation. In conclusion, PTE plays a significant role in wound healing and exhibits anti-inflammatory effects, demonstrating its great potential in treating diabetic wounds.
Collapse
|
6
|
Liu E, Gao H, Zhao Y, Pang Y, Yao Y, Yang Z, Zhang X, Wang Y, Yang S, Ma X, Zeng J, Guo J. The potential application of natural products in cutaneous wound healing: A review of preclinical evidence. Front Pharmacol 2022; 13:900439. [PMID: 35935866 PMCID: PMC9354992 DOI: 10.3389/fphar.2022.900439] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 06/28/2022] [Indexed: 11/22/2022] Open
Abstract
Under normal circumstances, wound healing can be summarized as three processes. These include inflammation, proliferation, and remodeling. The vast majority of wounds heal rapidly; however, a large percentage of nonhealing wounds have still not been studied significantly. The factors affecting wound nonhealing are complex and diverse, and identifying an effective solution from nature becomes a key goal of research. This study aimed to highlight and review the mechanisms and targets of natural products (NPs) for treating nonhealing wounds. The results of relevant studies have shown that the effects of NPs are associated with PI3K-AKT, P38MAPK, fibroblast growth factor, MAPK, and ERK signaling pathways and involve tumor growth factor (TNF), vascular endothelial growth factor, TNF-α, interleukin-1β, and expression of other cytokines and proteins. The 25 NPs that contribute to wound healing were systematically summarized by an inductive collation of the six major classes of compounds, including saponins, polyphenols, flavonoids, anthraquinones, polysaccharides, and others, which will further direct the attention to the active components of NPs and provide research ideas for further development of new products for wound healing.
Collapse
Affiliation(s)
- E Liu
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongjin Gao
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - YiJia Zhao
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yaobing Pang
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yejing Yao
- Neijiang Hospital of Traditional Chinese Medicine, Neijiang, China
| | - Zhengru Yang
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xueer Zhang
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - YanJin Wang
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Siming Yang
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiao Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiao Ma, ; Jinhao Zeng, ; Jing Guo,
| | - Jinhao Zeng
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiao Ma, ; Jinhao Zeng, ; Jing Guo,
| | - Jing Guo
- Dermatological Department, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiao Ma, ; Jinhao Zeng, ; Jing Guo,
| |
Collapse
|
7
|
Emrich S, Schuster A, Schnabel T, Oostingh GJ. Antimicrobial Activity and Wound-Healing Capacity of Birch, Beech and Larch Bark Extracts. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092817. [PMID: 35566174 PMCID: PMC9102567 DOI: 10.3390/molecules27092817] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 12/04/2022]
Abstract
Bark is a major by-product of woodworking industries. The contents of several wood species are known to harbor antimicrobial, antiviral, anti-inflammatory and wound-healing capacities. The aim of this work was to identify beneficial properties of Austrian larch, birch and beech bark extracts for their potential usage as additives or active ingredients in dermatological applications. Bacterial agar diffusion assay and resazurin-based broth microdilution assay were used to evaluate anti-bacterial activity. To gain more insight into the cellular response to bark extracts, viability-, scratch-assays and ELISAs were performed. Birch and beech extracts showed strong antimicrobial activities against Gram-positive bacteria, including Cutibacterium acnes, Staphylococcus epidermidis and MRSA. Wound closure was enhanced with birch and beech extracts as compared to controls in the scratch-assays. Whereas beneficial properties of birch bark components have previously been described, the similar effects of beech extracts are novel. The combined positive effect on wound-healing and antimicrobial activity has great potential for the treatment of various skin diseases, including acne in future dermal applications.
Collapse
Affiliation(s)
- Stefanie Emrich
- Biomedical Sciences, Salzburg University of Applied Sciences, Urstein Sued 1, 5412 Puch, Austria; (S.E.); (G.J.O.)
| | - Anja Schuster
- Biomedical Sciences, Salzburg University of Applied Sciences, Urstein Sued 1, 5412 Puch, Austria; (S.E.); (G.J.O.)
- Correspondence:
| | - Thomas Schnabel
- Department of Forest Products Technology & Timber Constructions, Salzburg University of Applied Sciences, Markt 136a, 5431 Kuchl, Austria;
- Faculty of Furniture Design and Wood Engineering, Transilvania University of Brasov, B-dul. Eroilor nr. 29, 500036 Brasov, Romania
| | - Gertie Janneke Oostingh
- Biomedical Sciences, Salzburg University of Applied Sciences, Urstein Sued 1, 5412 Puch, Austria; (S.E.); (G.J.O.)
| |
Collapse
|
8
|
Calderón C, Rubarth L, Cebo M, Merfort I, Lämmerhofer M. Lipid Atlas of Keratinocytes and Betulin Effects on its Lipidome Profiled by Comprehensive UHPLC–MS/MS with Data Independent Acquisition Using Targeted Data Processing. Proteomics 2019; 20:e1900113. [DOI: 10.1002/pmic.201900113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/24/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Carlos Calderón
- Institute of Pharmaceutical Sciences Pharmaceutical (Bio‐)Analysis University of Tübingen Auf der Morgenstelle 8 72076 Tübingen Germany
| | - Lara Rubarth
- Institute of Pharmaceutical Sciences Department of Pharmaceutical Biology and Biotechnology University of Freiburg 79104 Freiburg Germany
| | - Malgorzata Cebo
- Institute of Pharmaceutical Sciences Pharmaceutical (Bio‐)Analysis University of Tübingen Auf der Morgenstelle 8 72076 Tübingen Germany
| | - Irmgard Merfort
- Institute of Pharmaceutical Sciences Department of Pharmaceutical Biology and Biotechnology University of Freiburg 79104 Freiburg Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences Pharmaceutical (Bio‐)Analysis University of Tübingen Auf der Morgenstelle 8 72076 Tübingen Germany
| |
Collapse
|
9
|
Schwieger-Briel A, Ott H, Kiritsi D, Laszczyk-Lauer M, Bodemer C. Mechanism of Oleogel-S10: A triterpene preparation for the treatment of epidermolysis bullosa. Dermatol Ther 2019; 32:e12983. [PMID: 31168940 PMCID: PMC6771815 DOI: 10.1111/dth.12983] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 04/08/2019] [Accepted: 06/03/2019] [Indexed: 12/24/2022]
Abstract
Epidermolysis bullosa (EB) is a group of rare heterogeneous, genetic disorders. Currently, there is no effective pharmacological or genetic therapy for all EB subtypes. Dry extract from birch bark and betulin upregulate some pro‐inflammatory mediators and downregulate others. The increase in pro‐inflammatory cytokines is temporary and attenuated over long‐term treatment. This inflammatory stimulus is thought to be prerequisite for a secondary anti‐inflammatory response. Dry extract from birch bark and its active marker substances have also been shown to increase the migration of primary human keratinocytes, accelerate wound closure, and promote differentiation of keratinocytes in vitro and in vivo—processes that are essential for reepithelialization and maintenance of the skin barrier. Comprehensive clinical data are available to support the use of Oleogel‐S10 in the treatment of partial thickness wounds of different etiologies, and a proof‐of‐concept Phase 2 study in patients with dystrophic EB has suggested the potential for faster reepithelialization of wounds treated with Oleogel‐S10.
Collapse
Affiliation(s)
- Agnes Schwieger-Briel
- Department of Pediatric Dermatology, University Childrens' Hospital Zurich, Zurich, Switzerland
| | - Hagen Ott
- Division of Pediatric Dermatology and Allergology, Children's Hospital Auf der Bult, Hannover, Germany
| | - Dimitra Kiritsi
- Department of Dermatology, Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany
| | | | - Christine Bodemer
- Department of Dermatology, Institut Imagine, Necker Enfants Malades Hospital, Paris University, APHP 5; Centre for Genodermatoses (MAGEC); European Network for Rare Skin Diseases (ERN-SKIN), Paris, France
| |
Collapse
|
10
|
Meng L, Guo X, Yang X, Liu H, Yu M, Wu Y, Zhu Z. Human α defensins promote the expression of the inflammatory cytokine interleukin-8 under high-glucose conditions: Novel insights into the poor healing of diabetic foot ulcers. J Biochem Mol Toxicol 2019; 33:e22351. [PMID: 31158307 DOI: 10.1002/jbt.22351] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/21/2019] [Accepted: 05/08/2019] [Indexed: 12/26/2022]
Abstract
Sustained infection and chronic inflammation are the most common features and complex mechanisms of diabetic foot disease. In this study, we examined the expression and functional roles of human endogenous α defensins in diabetic foot ulcer. The expression levels of human α defensins HNP1, HNP3, and HNP4 were significantly higher in the wound center than the edge of diabetic foot ulcers. And the inflammatory cytokine interleukin IL-8 (IL-8) was also highly expressed in wound exudates. In human foreskin fibroblasts, these human α defensins were found only slightly to affect IL-8 expression directly. hemoglobin A1C (HbA1c) is the main clinical indicator of diabetic foot disease. Advanced glycation end products of bovine serum albumin (AGE-BSA), as HbA1c analogue, was found to promote IL-8 expression. Human α defensins, in the presence of AGE-BSA, further significantly promoted IL-8 expression. These findings showed that human α defensins aggravated the inflammatory response in diabetic foot ulcers patients, providing new insights in to the poor healing of diabetic foot ulcers.
Collapse
Affiliation(s)
- Lanxia Meng
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xingchen Guo
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xilin Yang
- Department of Otorhinolaryngology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Hongyue Liu
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Mosheng Yu
- Department of Plastic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yingliang Wu
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Zhanyong Zhu
- Department of Plastic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| |
Collapse
|
11
|
Frew Q, Rennekampff HO, Dziewulski P, Moiemen N, Zahn T, Hartmann B. Betulin wound gel accelerated healing of superficial partial thickness burns: Results of a randomized, intra-individually controlled, phase III trial with 12-months follow-up. Burns 2018; 45:876-890. [PMID: 30559054 DOI: 10.1016/j.burns.2018.10.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/23/2018] [Accepted: 10/25/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Acceleration of wound healing promises advantages for patients and caregivers in reducing the burden of disease, avoiding complications such as wound infections, and improving the long-term outcome. However, medicines that can accelerate wound healing are lacking. The objective of this open, blindly evaluated, randomized, multicenter phase III study was to compare intra-individually the efficacy and tolerability of Oleogel-S10 with fatty gauze dressing versus Octenilin® wound gel with fatty gauze dressing in accelerating the healing of superficial partial thickness burn wounds. METHODS Acute superficial partial thickness burn wounds in adults caused by fire, heat burn or scalding were divided into 2 halves and randomly assigned to treatment with Oleogel-S10 or Octenilin® wound gel. Photos for observer-blinded analysis of wound healing were taken at each wound dressing change. Percentages of reepithelialization were assessed at defined intervals. Efficacy and tolerability were evaluated based on a 5-point Likert scale. RESULTS Of 61 patients that were enrolled, 57 received the allocated intervention and 48 completed treatment. The percentage of patients with earlier wound healing was significantly higher for Oleogel-S10 (85.7%, n=30) compared to Octenilin® wound gel (14.3%, n=5, p<0.0001). The mean intra-individual difference in time to wound closure was -1.0 day in favour of Oleogel-S10 (-1.4, -0.6; 95% CI, p<0.0001). Most investigators (87.0%) and patients (84.8%) evaluated the efficacy of Oleogel-S10 to be 'better' or 'much better' than that of Octenilin® wound gel. Long-term outcome 3 months and 12 months post injury was improved in some patients. CONCLUSIONS Oleogel-S10 (Episalvan) significantly accelerated the healing of superficial partial thickness burn wounds. It was safe and well tolerated.
Collapse
Affiliation(s)
- Quentin Frew
- St. Andrew's Centre for Plastic Surgery and Burns, Mid Essex Hospitals Trust, Broomfield Hospital, Chelmsford, UK
| | | | - Peter Dziewulski
- St. Andrew's Centre for Plastic Surgery and Burns, Mid Essex Hospitals Trust, Broomfield Hospital, Chelmsford, UK
| | - Naiem Moiemen
- Burns and Plastics, University Hospitals Birmingham NHS Foundation Trust Queen Elisabeth Hospital, Birmingham, UK
| | | | - Bernd Hartmann
- Burn Center with Plastic Surgery, Unfallkrankenhaus Berlin, Germany.
| |
Collapse
|
12
|
Kikowska MA, Chmielewska M, Włodarczyk A, Studzińska-Sroka E, Żuchowski J, Stochmal A, Kotwicka M, Thiem B. Effect of Pentacyclic Triterpenoids-Rich Callus Extract of Chaenomeles japonica (Thunb.) Lindl. ex Spach on Viability, Morphology, and Proliferation of Normal Human Skin Fibroblasts. Molecules 2018; 23:molecules23113009. [PMID: 30453634 PMCID: PMC6278340 DOI: 10.3390/molecules23113009] [Citation(s) in RCA: 21] [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: 09/24/2018] [Revised: 10/31/2018] [Accepted: 11/15/2018] [Indexed: 12/30/2022] Open
Abstract
The effect of the well-characterized callus extract of Chaenomeles japonica on viability, morphology, and proliferation of normal human skin fibroblasts was investigated. The phytochemical analysis was performed using the ultra-high performance liquid chromatography method. The total phenolic, phenolic acid, and flavonoid contents were determined spectrophotometrically. The antioxidant activity was investigated using the DPPH (1,1-Diphenyl-1-picrylhydrazyl Radical Scavenging), FRAP (Ferric Reducing Antioxidant Power), and CUPRAC (CUPric Reducing Antioxidant Capacity) assays. The callus growth index during passages was high as well as the content of pentacyclic triterpenoids. The microscopic observations of the fibroblast viability, morphology and the evaluation of the proliferation ratio (xCELLigence system) proved that the influence of callus extract on the fibroblasts was dose-dependent. The evaluated level of fibroblasts proliferation rate after 72 h of incubation with callus extract at concentration 12.5 µg L−1 was the highest compared to all the analyzed ligands. Moreover, callus extract administrated for 72 h caused a significant increase in the proliferation rate in comparison with the control group (5.7 ± 0.1 vs. 4.4 ± 0.9; p < 0.01). The preliminary studies carried out may suggest that the callus extract rich in triterpenoids may be a potential source of cosmetic ingredients with a beneficial effect on human skin.
Collapse
Affiliation(s)
- Małgorzata Anna Kikowska
- Department of Pharmaceutical Botany and Plant Biotechnology, Poznan University of Medical Sciences, 61-861 Poznań, Poland.
| | - Małgorzata Chmielewska
- Department of Cell Biology, Poznan University of Medical Sciences, 60-806 Poznań, Poland.
| | - Agata Włodarczyk
- Department of Pharmaceutical Botany and Plant Biotechnology, Poznan University of Medical Sciences, 61-861 Poznań, Poland.
| | | | - Jerzy Żuchowski
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100 Puławy, Poland.
| | - Anna Stochmal
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100 Puławy, Poland.
| | - Małgorzata Kotwicka
- Department of Cell Biology, Poznan University of Medical Sciences, 60-806 Poznań, Poland.
| | - Barbara Thiem
- Department of Pharmaceutical Botany and Plant Biotechnology, Poznan University of Medical Sciences, 61-861 Poznań, Poland.
| |
Collapse
|
13
|
Lin TK, Zhong L, Santiago JL. Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oils. Int J Mol Sci 2017; 19:E70. [PMID: 29280987 PMCID: PMC5796020 DOI: 10.3390/ijms19010070] [Citation(s) in RCA: 217] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/14/2017] [Accepted: 12/20/2017] [Indexed: 01/19/2023] Open
Abstract
Plant oils have been utilized for a variety of purposes throughout history, with their integration into foods, cosmetics, and pharmaceutical products. They are now being increasingly recognized for their effects on both skin diseases and the restoration of cutaneous homeostasis. This article briefly reviews the available data on biological influences of topical skin applications of some plant oils (olive oil, olive pomace oil, sunflower seed oil, coconut oil, safflower seed oil, argan oil, soybean oil, peanut oil, sesame oil, avocado oil, borage oil, jojoba oil, oat oil, pomegranate seed oil, almond oil, bitter apricot oil, rose hip oil, German chamomile oil, and shea butter). Thus, it focuses on the therapeutic benefits of these plant oils according to their anti-inflammatory and antioxidant effects on the skin, promotion of wound healing and repair of skin barrier.
Collapse
Affiliation(s)
- Tzu-Kai Lin
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan.
| | - Lily Zhong
- California State University, Los Angeles, School of Nursing, 5151 State University Dr, Los Angeles, CA 90032, USA.
| | - Juan Luis Santiago
- Dermatology Service & Translational Research Unit (UIT), Hospital General Universitario de Ciudad Real, 13005 Ciudad Real, Spain.
| |
Collapse
|
14
|
Nicolaus C, Junghanns S, Hartmann A, Murillo R, Ganzera M, Merfort I. In vitro studies to evaluate the wound healing properties of Calendula officinalis extracts. JOURNAL OF ETHNOPHARMACOLOGY 2017; 196:94-103. [PMID: 27956358 DOI: 10.1016/j.jep.2016.12.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 11/14/2016] [Accepted: 12/07/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Calendula officinalis (pot marigold) flower extracts have a long-lasting tradition in ethnopharmacology. Currently, the European Medicines Agency (EMA) has approved its lipophilic and aqueous alcoholic extracts as traditional medicinal products for the treatment of minor inflammation of the skin and as an aid in the healing of minor wounds. AIM OF THE STUDY The purpose of this study was to analyse the molecular mechanism of the wound healing effects of Calendula extracts, which may reflect the phytomedicines currently used in the market. MATERIALS AND METHODS The effect of three different extracts from Calendula flowers (n-hexanic, ethanolic, aqueous) on the inflammatory phase of wound healing was studied in human immortalized keratinocytes and human dermal fibroblasts. An electrophoretic mobility shift assay on NF-κB-DNA binding, qRT-PCR and ELISA experiments were performed. The effect of Calendula extracts on the new tissue formation phase of wound healing was evaluated by studying the migratory properties of these extracts, triterpene mixtures and single compounds in human immortalized keratinocytes using the scratch assay. Finally, the effect of the extracts on the formation of granulation tissue in wound healing was studied using bacterial collagenase isolated from Clostridium histolyticum and the determination of soluble collagen in the supernatant of human dermal fibroblasts. RESULTS The n-hexanic and the ethanolic extracts from Calendula flowers influence the inflammatory phase by activating the transcription factor NF-κB and by increasing the amount of the chemokine IL-8, both at the transcriptional and protein level, in human immortalized keratinocytes. The migration of the keratinocytes during the new tissue formation phase was only marginally influenced in the scratch assay. However, it can be assumed that the granulation tissue was affected, as the ethanolic extract inhibited the activity of collagenase in vitro and enhanced the amount of collagen in the supernatant of human dermal fibroblasts. CONCLUSIONS Our results contribute to a better understanding of the wound healing properties of the traditional medicinal plant Calendula officinalis. However, further studies are necessary to evaluate which of its known constituents are responsible for these effects. Triterpenes seem to play only a marginal role, but carotene and xanthophyll derivatives should garner more attention in future studies.
Collapse
Affiliation(s)
- Christoph Nicolaus
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Stefan-Meier-Strasse 19, D-79104 Freiburg, Germany
| | - Susanne Junghanns
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Stefan-Meier-Strasse 19, D-79104 Freiburg, Germany
| | - Anja Hartmann
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82/IV, A-6020 Innsbruck, Austria
| | - Renato Murillo
- Escuela de Quimica and CIPRONA, Universidad de Costa Rica, 2060 San Jose, Costa Rica
| | - Markus Ganzera
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82/IV, A-6020 Innsbruck, Austria
| | - Irmgard Merfort
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Stefan-Meier-Strasse 19, D-79104 Freiburg, Germany.
| |
Collapse
|
15
|
Comparison of In-Vitro and Ex-Vivo Wound Healing Assays for the Investigation of Diabetic Wound Healing and Demonstration of a Beneficial Effect of a Triterpene Extract. PLoS One 2017; 12:e0169028. [PMID: 28046026 PMCID: PMC5207624 DOI: 10.1371/journal.pone.0169028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 12/09/2016] [Indexed: 11/24/2022] Open
Abstract
Diabetes mellitus is a frequent cause for chronic, difficult-to-treat wounds. New therapies for diabetic wounds are urgently needed and in-vitro or ex-vivo test systems are essential for the initial identification of new active molecules. The aim of this study is to compare in-vitro and ex-vivo test systems for their usability for early drug screening and to investigate the efficacy of a birch bark triterpene extract (TE) that has been proven ex-vivo and clinically to accelerate non-diabetic wound healing (WH), in a diabetic context. We investigated in-vitro models for diabetic WH, i.e. scratch assays with human keratinocytes from diabetic donors or cultured under hyperglycaemic conditions and a newly developed porcine ex-vivo hyperglycaemic WH model for their potential to mimic delayed diabetic WH and for the influence of TE in these test systems. We show that keratinocytes from diabetic donors often fail to exhibit significantly delayed WH. For cells under hyperglycaemic conditions significant decrease is observed but is influenced by choice of medium and presence of supplements. Also, donor age plays a role. Interestingly, hyperglycaemic effects are mainly hyperosmolaric effects in scratch assays. Ex-vivo models under hyperglycaemic conditions show a clear and substantial decrease of WH, and here both glucose and hyperosmolarity effects are involved. Finally, we provide evidence that TE is also beneficial for ex-vivo hyperglycaemic WH, resulting in significantly increased length of regenerated epidermis to 188±16% and 183±11% (SEM; p<0.05) compared to controls when using two different TE formulations. In conclusion, our results suggest that microenvironmental influences are important in WH test systems and that therefore the more complex hyperglycaemic ex-vivo model is more suitable for early drug screening. Limitations of the in-vitro and ex-vivo models are discussed. Furthermore our data recommend TE as a promising candidate for in-vivo testings in diabetic wounds.
Collapse
|