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Effects of the Extracts from Fruit and Stem of Camellia japonica on Induced Pluripotency and Wound Healing. J Clin Med 2018; 7:jcm7110449. [PMID: 30463279 PMCID: PMC6262430 DOI: 10.3390/jcm7110449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/12/2018] [Accepted: 11/16/2018] [Indexed: 12/16/2022] Open
Abstract
Small molecules that improve reprogramming, stem cell properties, and regeneration can be widely applied in regenerative medicine. Natural plant extracts represent an abundant and valuable source of bioactive small molecules for drug discovery. Natural products themselves or direct derivatives of them have continued to provide small molecules that have entered clinical trials, such as anticancer and antimicrobial drugs. Here, we tested 3695 extracts from native plants to examine whether they can improve induced pluripotent stem cell (iPSC) generation using genetically homogeneous secondary mouse embryonic fibroblasts (MEFs) harboring doxycycline (dox)-inducible reprograming transgenes. Among the tested extracts, extracts from the fruit and stem of Camellia japonica (CJ) enhanced mouse and human iPSC generation and promoted efficient wound healing in an in vivo mouse wound model. CJ is one of the best-known species of the genus Camellia that belongs to the Theaceae family. Our findings identified the natural plant extracts from the fruit and stem of CJ as novel regulators capable of enhancing cellular reprogramming and wound healing, providing a useful supplement in the development of a more efficient and safer method to produce clinical-grade iPSCs and therapeutics.
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Bayrami Z, Hajiaghaee R, Khalighi-Sigaroodi F, Rahimi R, Farzaei MH, Hodjat M, Baeeri M, Rahimifard M, Navaei-Nigjeh M, Abdollahi M. Bio-guided fractionation and isolation of active component from Tragopogon graminifolius based on its wound healing property. JOURNAL OF ETHNOPHARMACOLOGY 2018; 226:48-55. [PMID: 30096362 DOI: 10.1016/j.jep.2018.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 06/13/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tragopogon graminifolius (T. graminifolius) from Asteraceae family has been used as a remedy in Persian traditional medicine for the treatment of various disorders such as wound healing. AIM OF THE STUDY The purpose of this study is to investigate the compounds of T. graminifolius, which are responsible for its wound healing activity. MATERIALS AND METHODS The experiment was performed in three phases; each phase consisted of fractionation of extracts followed by scratch assay. The results of the scratch assay were expressed using scratch closure index (SCI), representing the contraction of scratch. RESULTS In phase I, Ethyl acetate fraction (E) showed the maximum SCI (61.7 ± 3.5) that was selected for more fractionation in the next phase. In phase II, 12 fractions were obtained and labeled as fractions E- A to L, respectively. Based on the SCI of fractions, EF (SCI=68.9 ± 0.6) was the most active fraction in phase II and selected for further fractionation in phase III. In phase III, 8 fractions were resulted by fractionation of EF and labeled as EF- 1-8. Fraction EF5 with the highest SCI (30.8 ± 3.0) was the most effective fraction and Luteolin was the main component. Luteolin significantly improved viability of fibroblast cells and increased cell population that was accompanied by decreased cell apoptosis. Luteolin-induced cell number increase in the S and G2M phases of the cell cycle, further confirms the proliferative effect of this compound. CONCLUSION The results showed that the total extract and fractions of T. graminifolius stimulate proliferation and migration of skin fibroblast cells and Luteolin is one of the active compounds responsible for these effects.
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Affiliation(s)
- Zahra Bayrami
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran; Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Hajiaghaee
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran.
| | | | - Roja Rahimi
- Department of Persian Pharmacy, School of Persian Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mahshid Hodjat
- Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran; Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Baeeri
- Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mahban Rahimifard
- Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Navaei-Nigjeh
- Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran; Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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Hydrogel and membrane scaffold formulations of Frutalin (breadfruit lectin) within a polysaccharide galactomannan matrix have potential for wound healing. Int J Biol Macromol 2018; 121:429-442. [PMID: 30326222 DOI: 10.1016/j.ijbiomac.2018.10.050] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/17/2018] [Accepted: 10/12/2018] [Indexed: 12/17/2022]
Abstract
Plant lectins are carbohydrate-binding proteins, which can interact with cell surfaces to initiate anti-inflammatory pathways, as well as immunomodulatory functions. Here, we have extracted, purified and part-characterized the bioactivity of Jacalin, Frutalin, DAL and PNA, before evaluating their potential for wound healing in cultured human skin fibroblasts. Only Frutalin stimulated fibroblast migration in vitro, prompting further studies which established its low cytotoxicity and interaction with TLR4 receptors. Frutalin also increased p-ERK expression and stimulated IL-6 secretion. The in vivo potential of Frutalin for wound healing was then assessed in hybrid combination with the polysaccharide galactomannan, purified from Caesalpinia pulcherrima seeds, using both hydrogel and membrane scaffolds formulations. Physical-chemical characterization of the hybrid showed that lectin-galactomannan interactions increased the pseudoplastic behaviour of solutions, reducing viscosity and increasing Frutalin's concentration. Furthermore, infrared spectroscopy revealed -OH band displacement, likely caused by interaction of Frutalin with galactose residues present on galactomannan chains, while average membrane porosity was 100 μm, sufficient to ensure water vapor permeability. Accelerated angiogenesis and increased fibroblast and keratinocyte proliferation were observed with the optimal hybrid recovering the lesioned area after 11 days. Our findings indicate Frutalin as a biomolecule with potential for tissue repair, regeneration and chronic wound healing.
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Purification and characterization of a new thermophilic collagenase from Nocardiopsis dassonvillei NRC2aza and its application in wound healing. Int J Biol Macromol 2018; 116:801-810. [DOI: 10.1016/j.ijbiomac.2018.05.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/04/2018] [Accepted: 05/04/2018] [Indexed: 11/19/2022]
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Pereira LOM, Vilegas W, Tangerina MMP, Arunachalam K, Balogun SO, Orlandi-Mattos PE, Colodel EM, Martins DTDO. Lafoensia pacari A. St.-Hil.: Wound healing activity and mechanism of action of standardized hydroethanolic leaves extract. JOURNAL OF ETHNOPHARMACOLOGY 2018; 219:337-350. [PMID: 29501673 DOI: 10.1016/j.jep.2018.02.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 01/11/2018] [Accepted: 02/24/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL IMPORTANCE Lafoensia pacari A. St.-Hil., (Lythraceae) is a native tree of Brazilian Cerrado and commonly known in Brazil as "mangava-brava". Its leaves are used in Brazilian folk medicine in wound healing, cutaneous mycoses, and in the treatment of gastritis and ulcers. AIM OF THE STUDY The present study was designed to evaluate the wound healing activity and mechanism of action of the hydroethanolic extract of Lafoensia pacari A. St.-Hil. leaves (HELp), and to advance in its chemical profiling. MATERIALS AND METHODS HELp was prepared by maceration in 70% hydroethanolic solution (1:10, w/v). The phytochemical analyses were investigated using colorimetry and electrospray ionization/mass spectrometric detection (ESI-MSn). Its in vitro cytotoxicity was evaluated in CHO-K1 and L929 cells, while the in vivo acute toxicity was performed in mice. The potential in vivo wound healing activity was assessed using excision and incision rat models and histopathology of the wounded skin (excision model) was carried out. The in vitro wound healing activity of HELp was demonstrated by scratch assay in L-929 cells, by measuring proliferation/migration rate and p-ERK 1/2 protein expression using western blot analysis. HELp's in vivo anti-inflammatory activity was evaluated by lipopolysaccharide (LPS) induced peritonitis in mice, along with the determination of nitric oxide (NO) and cytokines (TNF-α and IL-10) in the peritoneal lavages. Its potential in vitro antibacterial activity was performed using microbroth dilution assay, while in vitro antioxidant activities was by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical, and ferric reducing antioxidant power (FRAP) assays. RESULTS The phytochemical analysis of HELp revealed the presence of polyphenols with ellagic acid, punicalagin, punicalin, kaempferol, quercetin-3-O-xylopyranoside and quercetin-3-O-rhamnopyranoside being the most prominent. HELp showed no toxicity on CHO-k1 and L929 cell lines. Topical treatment with HELp (10 and 30 mg/g of gel) presented increased rates of wound contraction at all the days evaluated with complete wound re-epithelialization at 22.0 ± 1.5 (p < 0.05) and 21.7 ± 1.6 (p < 0.01) days, respectively. Topical application of HELp (10, 30 or 100 mg/g of gel) in incised wounds caused an increase in tensile break strength at all concentrations resulting in moderate re-epithelialization and neovascularization, increased cell proliferation an accelerated remodeling phase of the wound, in a manner comparable to standard drug (Madecassol®, 10 mg/g). In the scratch assay with L929 cells, HELp (0.1 and 0.03 mg/mL) and PDGF (5 ng/mL) resulted in the increased proliferation/migration rate of fibroblasts and higher expression of p-ERK 1/2 protein. In LPS-induced peritonitis, HELp (100 and 200 mg/kg p.o.) decreased total leukocyte migration, comparable to the dexamethasone (0.5 mg/kg p.o.). In RAW 264.7 macrophages activated by LPS, HELp produced anti-inflammatory activity dependent on increased concentrations of IL-10, reduction in NO production, without altering the TNF-α levels. HELp also presented potent antioxidant activity in the DPPH and FRAP, but lacks in vitro antibacterial activity. CONCLUSION The present study results support the popular use of the leaves of L. pacari in the treatment of wounds. Its wound healing activity is multi-targeted and involves inhibition of the proliferative and anti-inflammatory phases, antioxidant and positive modulation of the remodeling phase that might be involved different secondary metabolites, with emphasis on the ellagic acid, punicalagin, punicalin, kaempferol, quercetin-3-O-xylopyranoside and quercetin-3-O-rhamnopyranoside.
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Affiliation(s)
- Lucas Olivo Martins Pereira
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Wagner Vilegas
- UNESP - São Paulo State University, Institute of Biosciences, São Vicente, São Paulo, Brazil
| | | | - Karuppusamy Arunachalam
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Sikiru Olaitan Balogun
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil; Curso de Farmácia, Faculdade Noroeste do Mato Grosso, Associação Juinense de Ensino Superior, AJES - Faculdade do Noroeste de Mato Grosso, Brazil
| | - Paulo Eduardo Orlandi-Mattos
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Edson Moleta Colodel
- Faculdade de Medicina Veterinaria, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, no. 2367, Boa Esperança, 78060-900 Cuiabá, MT, Brazil.
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Artem Ataide J, Caramori Cefali L, Machado Croisfelt F, Arruda Martins Shimojo A, Oliveira-Nascimento L, Gava Mazzola P. Natural actives for wound healing: A review. Phytother Res 2018; 32:1664-1674. [PMID: 29722075 DOI: 10.1002/ptr.6102] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 03/29/2018] [Accepted: 04/05/2018] [Indexed: 12/15/2022]
Abstract
Nature has been a source of medicinal treatments for thousands of years, with the use of plants as prototypes for drug development and for the extraction of active compounds. Skin injuries occur regularly in everyday life, and the human skin has the ability to promote repair spontaneously under healthy conditions. However, some intrinsic and external factors may interfere with skins' natural ability, leading to nonhealing lesions and chronic wounds, which directly affect health and quality of life. Thus, attention should be given to this health problem, using an appropriated management when necessary. In this scenario, phytotherapy may be an option for cutaneous wound treatment, although further high-quality studies are needed to firmly establish the clinical efficacy of plants. This article reviews traditionally used natural actives for wound healing, highlighting their characteristics and mode of action.
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Affiliation(s)
- Janaína Artem Ataide
- Graduate Program in Medical Sciences, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Letícia Caramori Cefali
- Graduate Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Fernanda Machado Croisfelt
- Graduate Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Andréa Arruda Martins Shimojo
- Department of Engineering of Materials and Bioprocesses, School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, Brazil
| | | | - Priscila Gava Mazzola
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
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Hou J, Kim S. Possible role of ginsenoside Rb1 in skin wound healing via regulating senescent skin dermal fibroblast. Biochem Biophys Res Commun 2018; 499:381-388. [DOI: 10.1016/j.bbrc.2018.03.170] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 03/22/2018] [Indexed: 12/17/2022]
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108
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Abdelkader DH, Osman MA, El-Gizawy SA, Hawthorne SJ, Faheem AM, McCarron PA. Effect of poly(ethylene glycol) on insulin stability and cutaneous cell proliferation in vitro following cytoplasmic delivery of insulin-loaded nanoparticulate carriers – A potential topical wound management approach. Eur J Pharm Sci 2018; 114:372-384. [DOI: 10.1016/j.ejps.2017.12.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 12/19/2017] [Accepted: 12/21/2017] [Indexed: 12/14/2022]
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Full-Length Isoforms of Kaposi's Sarcoma-Associated Herpesvirus Latency-Associated Nuclear Antigen Accumulate in the Cytoplasm of Cells Undergoing the Lytic Cycle of Replication. J Virol 2017; 91:JVI.01532-17. [PMID: 28978712 DOI: 10.1128/jvi.01532-17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 09/29/2017] [Indexed: 01/09/2023] Open
Abstract
The latency-associated nuclear antigen (LANA) of the Kaposi's sarcoma-associated herpesvirus (KSHV) performs a variety of functions to establish and maintain KSHV latency. During latency, LANA localizes to discrete punctate spots in the nucleus, where it tethers viral episomes to cellular chromatin and interacts with nuclear components to regulate cellular and viral gene expression. Using highly sensitive tyramide signal amplification, we determined that LANA localizes to the cytoplasm in different cell types undergoing the lytic cycle of replication after de novo primary infection and after spontaneous, tetradecanoyl phorbol acetate-, or open reading frame 50 (ORF50)/replication transactivator (RTA)-induced activation. We confirmed the presence of cytoplasmic LANA in a subset of cells in lytically active multicentric Castleman disease lesions. The induction of cellular migration by scratch-wounding confluent cell cultures, culturing under subconfluent conditions, or induction of cell differentiation in primary cultures upregulated the number of cells permissive for primary lytic KSHV infection. The induction of lytic replication was characterized by high-level expression of cytoplasmic LANA and nuclear ORF59, a marker of lytic replication. Subcellular fractionation studies revealed the presence of multiple isoforms of LANA in the cytoplasm of ORF50/RTA-activated Vero cells undergoing primary infection. Mass spectrometry analysis demonstrated that cytoplasmic LANA isoforms were full length, containing the N-terminal nuclear localization signal. These results suggest that trafficking of LANA to different subcellular locations is a regulated phenomenon, which allows LANA to interact with cellular components in different compartments during both the latent and the replicative stages of the KSHV life cycle.IMPORTANCE Kaposi's sarcoma-associated herpesvirus (KSHV) causes AIDS-related malignancies, including lymphomas and Kaposi's sarcoma. KSHV establishes lifelong infections using its latency-associated nuclear antigen (LANA). During latency, LANA localizes to the nucleus, where it connects viral and cellular DNA complexes and regulates gene expression, allowing the virus to maintain long-term infections. Our research shows that intact LANA traffics to the cytoplasm of cells undergoing permissive lytic infections and latently infected cells in which the virus is induced to replicate. This suggests that LANA plays important roles in the cytoplasm and nuclear compartments of the cell during different stages of the KSHV life cycle. Determining cytoplasmic function and mechanism for regulation of the nuclear localization of LANA will enhance our understanding of the biology of this virus, leading to therapeutic approaches to eliminate infection and block its pathological effects.
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Assessment of In Vitro Biological Activities of Anthocyanins-Rich Plant Species Based on Plinia cauliflora Study Model. Methods Mol Biol 2017; 1391:65-80. [PMID: 27108310 DOI: 10.1007/978-1-4939-3332-7_5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Plinia cauliflora (jaboticaba) is a native fruit tree from Brazilian rainforest widely used in popular medicine to prevent diarrhea, asthma, and infections. Studies have shown that the major therapeutic potential of jaboticaba fruits is on its peel, a rich source of anthocyanins. These secondary metabolites have well-known antioxidant and anti-inflammatory activities and have been claimed to be effective to treat diabetes, cancer, cardiovascular diseases, and stroke. This chapter describes a series of methodologies to evaluate important in vitro biological activities like cytotoxicity, proliferation, and migration of a hydroalcoholic extract of jaboticaba peel on mouse fibroblast L929 line. Assays to assess total phenolic, flavonoid, and anthocyanin contents and antioxidant activities are described as well.
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4-Hydroxybenzaldehyde accelerates acute wound healing through activation of focal adhesion signalling in keratinocytes. Sci Rep 2017; 7:14192. [PMID: 29079748 PMCID: PMC5660242 DOI: 10.1038/s41598-017-14368-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/09/2017] [Indexed: 01/16/2023] Open
Abstract
4-Hydroxybenzaldehyde (4-HBA) is a naturally occurring benzaldehyde and the major active constituent of Gastrodia elata. While recent studies have demonstrated metabolic effects of 4-HBA, little is known about the physiological role of 4-HBA in acute wound healing. Here, we investigated the effects and mechanisms of 4-HBA on acute wound healing. Using an in vitro approach, we found that 4-HBA significantly promoted keratinocyte cell migration and invasion by increasing focal adhesion kinase and Src activity. In addition, 4-HBA treatment also promoted wound healing and re-epithelialization in an in vivo excision wound animal model. Combination treatment with 4-HBA and platelet-derived growth factor subunit B homodimer showed synergistic effects in promoting wound healing. Taken together, our results demonstrated that treatment with 4-HBA promoted keratinocyte migration and wound healing in mouse skin through the Src/mitogen-activated protein kinase pathway. Therefore, 4-HBA could be a candidate therapeutic agent with the potential to promote acute wound healing.
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Affiliation(s)
- L. F. Price
- School of Mathematical Sciences, Queensland University of Technology, Australia and Australian Research Council Centre of Excellence for Mathematical and Statistical Frontiers (ACEMS)
| | - C. C. Drovandi
- School of Mathematical Sciences, Queensland University of Technology, Australia and Australian Research Council Centre of Excellence for Mathematical and Statistical Frontiers (ACEMS)
| | - A. Lee
- Department of Statistics, University of Warwick, Coventry, UK
| | - D. J. Nott
- Department of Statistics and Applied Probability, National University of Singapore, Singapore
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113
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From Inflammation to Current and Alternative Therapies Involved in Wound Healing. Int J Inflam 2017; 2017:3406215. [PMID: 28811953 PMCID: PMC5547704 DOI: 10.1155/2017/3406215] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/01/2017] [Accepted: 06/06/2017] [Indexed: 02/08/2023] Open
Abstract
Wound healing is a complex event that develops in three overlapping phases: inflammatory, proliferative, and remodeling. These phases are distinct in function and histological characteristics. However, they depend on the interaction of cytokines, growth factors, chemokines, and chemical mediators from cells to perform regulatory events. In this article, we will review the pathway in the skin healing cascade, relating the major chemical inflammatory mediators, cellular and molecular, as well as demonstrating the local and systemic factors that interfere in healing and disorders associated with tissue repair deficiency. Finally, we will discuss the current therapeutic interventions in the wounds treatment, and the alternative therapies used as promising results in the development of new products with healing potential.
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114
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Frutapin, a lectin from Artocarpus incisa (breadfruit): cloning, expression and molecular insights. Biosci Rep 2017; 37:BSR20170969. [PMID: 28684550 PMCID: PMC5520216 DOI: 10.1042/bsr20170969] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/02/2017] [Accepted: 07/04/2017] [Indexed: 12/22/2022] Open
Abstract
Artocarpus incisa (breadfruit) seeds contain three different lectins (Frutalin, Frutapin (FTP) and Frutackin) with distinct carbohydrate specificities. The most abundant lectin is Frutalin, an α-D-galactose-specific carbohydrate-binding glycoprotein with antitumour properties and potential for tumour biomarker discovery as already reported. FTP is the second most abundant, but proved difficult to purify with very low yields and contamination with Frutalin frustrating its characterization. Here, we report for the first time high-level production and isolation of biologically active recombinant FTP in Escherichia coli BL21, optimizing conditions with the best set yielding >40 mg/l culture of soluble active FTP. The minimal concentration for agglutination of red blood cells was 62.5 µg/ml of FTP, a process effectively inhibited by mannose. Apo-FTP, FTP–mannose and FTP–glucose crystals were obtained, and they diffracted X-rays to a resolution of 1.58 (P212121), 1.70 (P3121) and 1.60 (P3121) Å respectively. The best solution showed four monomers per asymmetric unit. Molecular dynamics (MD) simulation suggested that FTP displays higher affinity for mannose than glucose. Cell studies revealed that FTP was non-cytotoxic to cultured mouse fibroblast 3T3 cells below 0.5 mg/ml and was also capable of stimulating cell migration at 50 µg/ml. In conclusion, our optimized expression system allowed high amounts of correctly folded soluble FTP to be isolated. This recombinant bioactive lectin will now be tested in future studies for therapeutic potential; for example in wound healing and tissue regeneration.
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Heil N, Bravo K, Montoya A, Robledo S, Osorio E. Wound healing activity of Ullucus tuberosus , an Andean tuber crop. Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2017.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Hu T, Yang C, Fu M, Yang J, Du R, Ran X, Yin T, Wang G. Cytotoxic effects of docetaxel as a candidate drug of drug-eluting stent on human umbilical vein endothelial cells and the signaling pathway of cell migration inhibition, adhesion delay and shape change. Regen Biomater 2017; 4:167-178. [PMID: 28596914 PMCID: PMC5458539 DOI: 10.1093/rb/rbx010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/12/2017] [Accepted: 03/14/2017] [Indexed: 01/03/2023] Open
Abstract
Docetaxel (DTX), a paclitaxel analogue, can efficiently inhibit proliferation of vascular smooth muscle cells and has broadly been used as an antiangiogenesis drug. However, as a candidate drug of drug-eluting stent, the effects of DTX on human umbilical vein endothelial cells (HUVECs) are still not well understood. Herein, we investigated the effects of DTX on proliferation, apoptosis, adhesion, migration and morphology of HUVECs in vitro. We found that DTX had the cytostatic and cytotoxic effects at low and high concentrations, respectively. DTX could inhibit the proliferation and migration of HUVECs, induce HUVECs apoptosis, delay HUVECs adhesion and decrease spreading area and aspect ratio of individual cells. The signaling pathway that DTX led to the migration inhibition, adhesion delay and shape change of HUVECs is the VE-cadherin mediated integrin β1/FAK/ROCK signaling pathway. The study will provide a theoretical basis for the clinical application of DTX.
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Affiliation(s)
- Tingzhang Hu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Chun Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Meiling Fu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Jiali Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Rolin Du
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Xiaolin Ran
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
- Correspondence address. Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China. Tel: +86(0)23-65112675; Fax: +86(0)23-65112507; E-mail:
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Yousefi K, Hamedeyazdan S, Hodaei D, Lotfipour F, Baradaran B, Orangi M, Fathiazad F. An in vitro ethnopharmacological study on Prangos ferulacea: a wound healing agent. ACTA ACUST UNITED AC 2017; 7:75-82. [PMID: 28752071 PMCID: PMC5524988 DOI: 10.15171/bi.2017.10] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 02/18/2017] [Accepted: 03/06/2017] [Indexed: 12/03/2022]
Abstract
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Introduction: Traditionally Prangos ferulacea root is being used as an effective wound healing agent especially for pus-filled wounds both in human and stocks in the western north of Iran. Regarding the subject we decided to study P. ferulacea roots essential oil (PFE) for its antimicrobial and wound healing activities.
Methods: The in vitro wound healing activity of PFE was evaluated in the mouse fibroblast cell line L929 using MTT assay of cell viability and cytotoxicity indices. Scratch assay as an in vitro model of wound healing assay was also conducted in this study. Moreover, the type I collagen content was used as an indicator of progress in wound healing process using Sircol collagen assay. Besides, PFE was subjected to GC/MS to identify the chemical constituents, and antimicrobical property was also evaluated against S. aureus, S. epidermidis, E. coli, P. aeruginosa,S. paratyphi and C. albicans using agar dilution method.
Results: GC/MS analysis showed that the monoterpene hydrocarbones dominated in PFE, amounting to a total percentage of 95.1% with the major constituents: β-Phellandrene (32.1%), m-Tolualdehyde (26.2%), and δ-3-carene (25.8%). PFE inhibited the growth of S. aureus and P. aeruginusa with the MIC value of 20 µg/mL. In addition, at the second day of treatment, PFE at concentrations of 4 and 16 µg/mL significantly (P<0.001) enhanced the migration rate of L929 cells by 87.05±2.4 and 63.5±0.08 %, respectively. Moreover, the collagen production by L929 cells was increased greatly (P<0.001).
Conclusion: It is proposed that the excellent antimicrobial activity along with the significant increase of migration rate and collagen production by fibroblast cells might be associated with the high content and synergistic effect of the monoterpens, corroborating the traditional usage of this plant as a wound healing agent.
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Affiliation(s)
- Keyvan Yousefi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sanaz Hamedeyazdan
- Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Darya Hodaei
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Lotfipour
- Department of Drug and Food Control, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mona Orangi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Fathiazad
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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118
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Buzzi M, de Freitas F, de Barros Winter M. Therapeutic effectiveness of a Calendula officinalis extract in venous leg ulcer healing. J Wound Care 2017; 25:732-739. [PMID: 27974009 DOI: 10.12968/jowc.2016.25.12.732] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Non-healing venous leg ulcers (VLUs) have a significant effect on patients' quality of life and substantially increase expenditures in health-care systems. The aim of this study was to evaluate the clinical efficacy of the Calendula officinalis extract, Plenusdermax, in the treatment of VLUs. METHOD Patients treated with Calendula officinalis extract (n=38) and control patients (n=19) were evaluated every two weeks for 30 weeks or until their ulcers healed. Assessments included determination of the wound area by planimetry, infection control, and evaluation of the clinical aspects of the wounds. The percentage of healing velocity per week (%HVw), taking the initial area at baseline into account, was also determined. RESULTS The proportion of the treatment patients achieving complete epithelialisation was 72 % and 32 % in the treatment and control groups, respectively. The average healing time was approximately 12 weeks in the treatment group and 25 % in control patients. Patients with ulcers treated with Calendula officinalis extract had a significant 4-fold increase in percentage healing velocity per week, 7.4 %, compared with 1.7 % in the control group. No adverse events were observed during the Calendula officinalis extract treatment. CONCLUSION Our findings indicate that Calendula officinalis extract is an effective treatment for VLUs. DECLARATION OF INTEREST The authors have no conflict of interest.
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Affiliation(s)
- M Buzzi
- Proamplus Clinical Research Advisory LTD, Pinhais, Paraná, Brazil
| | - F de Freitas
- Phytoplenus Bioativos S.A., Pinhais, Paraná, Brazil
| | - M de Barros Winter
- Hospital da Santa Casa de Misericórdia de Curitiba, Departamento of Dermatologia, Curitiba, Paraná, Brazil
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119
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Trivedi MK, Gangwar M, Mondal SC, Jana S. Protective effects of tetrahydrocurcumin (THC) on fibroblast and melanoma cell lines in vitro: it's implication for wound healing. Journal of Food Science and Technology 2017; 54:1137-1145. [PMID: 28416863 DOI: 10.1007/s13197-017-2525-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/22/2017] [Accepted: 01/31/2017] [Indexed: 10/20/2022]
Abstract
The aim of this study was to investigate the role of tetrahydrocurcumin (THC) against various skin health parameters using in vitro human foreskin fibroblast and melanoma cell lines (i.e. HFF-1 and B16-F10). The study was assessed using cell viability by MTT assay, identification of extracellular matrix component in HFF-1 cell line (i.e. collagen, elastin and hyaluronic acid), melanin synthesis in B16-F10 cells, cell viability against UVB-induced stress in HFF-1 cells, and in vitro wound healing by the scratch assay. THC was found to be safe and nontoxic up to the concentration of 10 µg/mL with improved level of collagen (37.90%), elastin (90.1%), and hyaluronic acid (74.19%) at 1 µg/mL. Besides, melanin was significantly inhibition by 78.5% at the lowest THC concentration of 0.1 µg/mL. UVB-protection rate was significantly improved by 61.2% and improved cell viability by THC in HFF-1 cells, which indicated protection from photoaging. In addition, THC showed significant wound healing activity (78.51%) and greater migration of fibroblast in HFF-1 cells at different time period. It can be concluded from the study that THC can protect the skin matrix with improved extracellular component synthesis and would healing via collagen synthesis in the skin, which improved the skin elasticity and tightness. Overall, it might be suggested that THC can be used as a safe skin whitening agent, wounds management, cosmetic applications, and treating various skin-related disorders.
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Affiliation(s)
| | - Mayank Gangwar
- Trivedi Science Research Laboratory Pvt. Ltd., Bhopal, Madhya Pradesh India
| | | | - Snehasis Jana
- Trivedi Science Research Laboratory Pvt. Ltd., Bhopal, Madhya Pradesh India
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120
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Freiesleben SH, Soelberg J, Nyberg NT, Jäger AK. Determination of the Wound Healing Potentials of Medicinal Plants Historically Used in Ghana. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:9480791. [PMID: 28326125 PMCID: PMC5343285 DOI: 10.1155/2017/9480791] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 01/16/2017] [Indexed: 11/18/2022]
Abstract
The present study was carried out to investigate the wound healing potentials of 17 medicinal plants historically used in Ghana for wound healing. Warm and cold water extracts were prepared from the 17 dried plant species and tested in vitro in the scratch assay with NIH 3T3 fibroblasts from mice. The wound healing scratch assay was used to evaluate the effect of the plants on cell proliferation and/or migration in vitro, as a test for potential wound healing properties. After 21 hours of incubation increased proliferation and/or migration of fibroblasts in the scratch assay was obtained for 5 out of the 17 plant species. HPLC separation of the most active plant extract, which was a warm water extract of Philenoptera cyanescens, revealed the wound healing activity to be attributed to rutin and a triglycoside of quercetin. The present study suggests that Allophylus spicatus, Philenoptera cyanescens, Melanthera scandens, Ocimum gratissimum, and Jasminum dichotomum have wound healing activity in vitro.
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Affiliation(s)
- Sara H. Freiesleben
- Department of Drug Design and Pharmacology, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Jens Soelberg
- Department of Drug Design and Pharmacology, Universitetsparken 2, 2100 Copenhagen, Denmark
- Museum of Natural Medicine, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Nils T. Nyberg
- Department of Drug Design and Pharmacology, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Anna K. Jäger
- Department of Drug Design and Pharmacology, Universitetsparken 2, 2100 Copenhagen, Denmark
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121
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Das U, Behera SS, Pramanik K. Ethno-Herbal-Medico in Wound Repair: An Incisive Review. Phytother Res 2017; 31:579-590. [DOI: 10.1002/ptr.5786] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 01/16/2017] [Accepted: 01/18/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Urmimala Das
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela 769008 Odisha India
| | | | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela 769008 Odisha India
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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.
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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.
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Ehrlich L, Hall C, Venter J, Dostal D, Bernuzzi F, Invernizzi P, Meng F, Trzeciakowski JP, Zhou T, Standeford H, Alpini G, Lairmore TC, Glaser S. miR-24 Inhibition Increases Menin Expression and Decreases Cholangiocarcinoma Proliferation. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:570-580. [PMID: 28087162 DOI: 10.1016/j.ajpath.2016.10.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 10/04/2016] [Accepted: 10/25/2016] [Indexed: 12/15/2022]
Abstract
Menin (MEN1) is a tumor-suppressor protein in neuroendocrine tissue. Therefore, we tested the novel hypothesis that menin regulates cholangiocarcinoma proliferation. Menin and miR-24 expression levels were measured in the following intrahepatic and extrahepatic cholangiocarcinoma (CCA) cell lines, Mz-ChA-1, TFK-1, SG231, CCLP, HuCCT-1, and HuH-28, as well as the nonmalignant human intrahepatic biliary line, H69. miR-24 miRNA and menin protein levels were manipulated in vitro in Mz-ChA-1 cell lines. Markers of proliferation and angiogenesis (Ki-67, vascular endothelial growth factors A/C, vascular endothelial growth factor receptors 2/3, angiopoietin 1/2, and angiopoietin receptors 1/2) were evaluated. Mz-ChA-1 cells were injected into the flanks of nude mice and treated with miR-24 inhibitor or inhibitor scramble. Menin expression was decreased in advanced CCA specimens, whereas miR-24 expression was increased in CCA. Menin overexpression decreased proliferation, angiogenesis, migration, and invasion. Inhibition of miR-24 increased menin protein expression while decreasing proliferation, angiogenesis, migration, and invasion. miR-24 was shown to negatively regulate menin expression by luciferase assay. Tumor burden and expression of proliferative and angiogenic markers was decreased in the miR-24 inhibited tumor group compared to controls. Interestingly, treated tumors were more fibrotic than the control group. miR-24-dependent expression of menin may be important in the regulation of nonmalignant and CCA proliferation and may be an additional therapeutic tool for managing CCA progression.
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Affiliation(s)
- Laurent Ehrlich
- Department of Medicine, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Division of Gastroenterology and Medical Physiology, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Chad Hall
- Division of Surgery, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Julie Venter
- Department of Medicine, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - David Dostal
- Division of Gastroenterology and Medical Physiology, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Francesca Bernuzzi
- Department of Medicine and Surgery, Program for Autoimmune Liver Diseases, International Center for Digestive Diseases, University of Milan-Bicocca, Milan, Italy; Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | - Pietro Invernizzi
- Department of Medicine and Surgery, Program for Autoimmune Liver Diseases, International Center for Digestive Diseases, University of Milan-Bicocca, Milan, Italy; Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano (Milan), Italy
| | - Fanyin Meng
- Department of Medicine, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Division of Gastroenterology and Medical Physiology, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Research Section, Central Texas Veterans Health Care System, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Baylor Scott & White Digestive Disease Research Center, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Jerome P Trzeciakowski
- Division of Gastroenterology and Medical Physiology, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Tianhao Zhou
- Department of Medicine, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Holly Standeford
- Research Section, Central Texas Veterans Health Care System, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Gianfranco Alpini
- Department of Medicine, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Research Section, Central Texas Veterans Health Care System, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Baylor Scott & White Digestive Disease Research Center, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Terry C Lairmore
- Division of Surgery, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas
| | - Shannon Glaser
- Department of Medicine, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Research Section, Central Texas Veterans Health Care System, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas; Baylor Scott & White Digestive Disease Research Center, Baylor Scott & White and Texas A&M University Health Science Center, Temple, Texas.
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Fuseler JW, Valarmathi MT. Nitric Oxide Modulates Postnatal Bone Marrow-Derived Mesenchymal Stem Cell Migration. Front Cell Dev Biol 2016; 4:133. [PMID: 27933292 PMCID: PMC5122209 DOI: 10.3389/fcell.2016.00133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 11/01/2016] [Indexed: 01/06/2023] Open
Abstract
Nitric oxide (NO) is a small free-radical gas molecule, which is highly diffusible and can activate a wide range of downstream effectors, with rapid and widespread cellular effects. NO is a versatile signaling mediator with a plethora of cellular functions. For example, NO has been shown to regulate actin, the microfilament, dependent cellular functions, and also acts as a putative stem cell differentiation-inducing agent. In this study, using a wound-healing model of cellular migration, we have explored the effect of exogenous NO on the kinetics of movement and morphological changes in postnatal bone marrow-derived mesenchymal stem cells (MSCs). Cellular migration kinetics and morphological changes of the migrating MSCs were measured in the presence of an NO donor (S-Nitroso-N-Acetyl-D,L-Penicillamine, SNAP), especially, to track the dynamics of single-cell responses. Two experimental conditions were assessed, in which SNAP (200 μM) was applied to the MSCs. In the first experimental group (SN-1), SNAP was applied immediately following wound formation, and migration kinetics were determined for 24 h. In the second experimental group (SN-2), MSCs were pretreated for 7 days with SNAP prior to wound formation and the determination of migration kinetics. The generated displacement curves were further analyzed by non-linear regression analysis. The migration displacement of the controls and NO treated MSCs (SN-1 and SN-2) was best described by a two parameter exponential functions expressing difference constant coefficients. Additionally, changes in the fractal dimension (D) of migrating MSCs were correlated with their displacement kinetics for all the three groups. Overall, these data suggest that NO may evidently function as a stop migration signal by disordering the cytoskeletal elements required for cell movement and proliferation of MSCs.
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Affiliation(s)
- John W Fuseler
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina Columbia, SC, USA
| | - Mani T Valarmathi
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign Urbana, IL, USA
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125
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Baliano AP, Pimentel EF, Buzin AR, Vieira TZ, Romão W, Tose LV, Lenz D, Andrade TUD, Fronza M, Kondratyuk TP, Endringer DC. Brown seaweed Padina gymnospora is a prominent natural wound-care product. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2016. [DOI: 10.1016/j.bjp.2016.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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126
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Yoo JY, Hwang CH, Hong HN. A Model of Glial Scarring Analogous to the Environment of a Traumatically Injured Spinal Cord Using Kainate. Ann Rehabil Med 2016; 40:757-768. [PMID: 27847705 PMCID: PMC5108702 DOI: 10.5535/arm.2016.40.5.757] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 03/14/2016] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To develop an in vitro model analogous to the environment of traumatic spinal cord injury (SCI), the authors evaluated change of astrogliosis following treatments with kainate and/or scratch, and degree of neurite outgrowth after treatment with a kainate inhibitor. METHODS Astrocytes were obtained from the rat spinal cord. Then, 99% of the cells were confirmed to be GFAP-positive astrocytes. For chemical injury, the cells were treated with kainate at different concentrations (10, 50 or 100 µM). For mechanical injury, two kinds of uniform scratches were made using a plastic pipette tip by removing strips of cells. For combined injury (S/K), scratch and kainate were provided. Cord neurons from rat embryos were plated onto culture plates immediately after the three kinds of injuries and some cultures were treated with a kainate inhibitor. RESULTS Astro-gliosis (glial fibrillary acidic protein [GFAP], vimentin, chondroitin sulfate proteoglycan [CSPG], rho-associated protein kinase [ROCK], and ephrin type-A receptor 4 [EphA4]) was most prominent after treatment with 50 µM kainate and extensive scratch injury in terms of single arm (p<0.001) and in the S/K-induced injury model in view of single or combination (p<0.001). Neurite outgrowth in the seeded spinal cord (β-III tubulin) was the least in the S/K-induced injury model (p<0.001) and this inhibition was reversed by the kainate inhibitor (p<0.001). CONCLUSION The current in vitro model combining scratch and kainate induced glial scarring and inhibitory molecules and restricted neurite outgrowth very strongly than either the mechanically or chemically-induced injury model; hence, it may be a useful tool for research on SCI.
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Affiliation(s)
- Jong Yoon Yoo
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang Ho Hwang
- Department of Physical Medicine and Rehabilitation, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Hea Nam Hong
- Department of Anatomy, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Shin K, Hwang SG, Choi IJ, Ko YG, Jeong J, Kwon H. Fbxw7β, E3 ubiquitin ligase, negative regulation of primary myoblast differentiation, proliferation and migration. Anim Sci J 2016; 88:712-719. [PMID: 27594513 DOI: 10.1111/asj.12687] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 06/10/2016] [Accepted: 06/21/2016] [Indexed: 12/24/2022]
Abstract
Satellite cells attached to skeletal muscle fibers play a crucial role in skeletal muscle regeneration. During regeneration, the satellite cells proliferate, migrate to the damaged region, and fuse to each other. Although it is important to determine the cellular mechanisms controlling myoblast behavior, their regulators are not well understood. In this study, we evaluated the roles of Fbxw7 in primary myoblasts and determined its potential as a therapeutic target for muscle disease. We originally found that Fbxw7β, one of the E3 ubiquitin ligase Fbxw7 subtypes, negatively regulates differentiation, proliferation and migration of myoblasts and satellite cells on muscle fiber. However, these phenomena were not observed in myoblasts expressing a dominant-negative, F-box deleted Fbxw7β, mutant. Our results suggest that myoblast differentiation potential and muscle regeneration can be regulated by Fbxw7β.
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Affiliation(s)
- Kyungshin Shin
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Science, Seoul, South Korea.,Department of Biotechnology, Korea University, Seoul, South Korea
| | - Sang-Gu Hwang
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Science, Seoul, South Korea
| | - Ik Joon Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea Cancer Center Hospital, Seoul, South Korea
| | - Young-Gyu Ko
- College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Jaemin Jeong
- Department of Surgery, Hanyang University College of Medicine, Seoul, South Korea
| | - Heechung Kwon
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Science, Seoul, South Korea
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128
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Efficacy of silver coated surgical sutures on bacterial contamination, cellular response and wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:884-93. [PMID: 27612783 DOI: 10.1016/j.msec.2016.07.074] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/30/2016] [Accepted: 07/27/2016] [Indexed: 01/31/2023]
Abstract
The resistance demonstrated by many microorganisms towards conventional antibiotics has stimulated the interest in alternative antimicrobial agents and in novel approaches for prevention of infections. Silver, a natural braod-spectrum antimicrobial agent known since antiquity, has been widely employed in biomedical field due to its recognized antibacterial, antifungal and antiviral properties. In this work, antibacterial silver coatings were deposited on absorbable surgical sutures through the in situ photo-chemical deposition of silver clusters. Scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX) and thermo-gravimetric analysis (TGA) were performed in order to investigate the presence and distribution of the silver clusters on the substrate. The amounts of silver deposited and released by the silver treated sutures were calculated through Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS), and the results were related to the biodegradation of the material. The microbiological properties and the potential cytotoxicity of the silver-treated sutures were investigated in relation with hydrolysis experiments, in order to determine the effect of the degradation on antibacterial properties and biocompatibility.
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130
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Blue light does not impair wound healing in vitro. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 160:53-60. [DOI: 10.1016/j.jphotobiol.2016.04.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/04/2016] [Accepted: 04/06/2016] [Indexed: 11/19/2022]
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Effects of chlorhexidine, essential oils and herbal medicines (Salvia, Chamomile, Calendula) on human fibroblast in vitro. Cent Eur J Immunol 2016; 41:125-31. [PMID: 27536196 PMCID: PMC4967643 DOI: 10.5114/ceji.2016.59739] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 02/25/2016] [Indexed: 11/17/2022] Open
Abstract
Antiseptic rinses have been successfully used in inflammatory states of the gums and oral cavity mucosa. Antibacterial effects of chlorhexidine, essential oils and some herbs are well documented. Reaction of host tissue to these substances has much poorer documentation. The aim of the study was to analyse the influence of chlorhexidine (CHX), essential oil (EO: thymol, 0.064%; eucalyptol, 0.092%; methyl salicylate, 0.060%; menthol, 0.042%) mouth rinses and salvia, chamomile and calendula brews on fibroblast biology in vitro. The human fibroblast CCD16 line cells were cultured in incubation media which contained the examined substances. After 24 and 48 hours, the cell morphology, relative growth and apoptosis were evaluated. Exposure of fibroblasts to CHX, EO or salvia caused various changes in cell morphology. Cells cultured for 48 hours with CHX revealed a noticeably elongated shape of while cells cultured in high EO concentration or with salvia were considerably smaller and contracted with fewer projections. Chlorhexidine, EO and salvia reduced the fibroblast proliferation rate and stimulated cell death. Both reactions to EO were dose dependent. Cells exposure to chamomile or calendula brews did not change morphology or proliferation of fibroblasts. The results of this in vitro study showed that in contrast to chamomile and calendula, the brews of EO, CHX or salvia had a negative influence on fibroblast biology.
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132
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Pereira RF, Bártolo PJ. Traditional Therapies for Skin Wound Healing. Adv Wound Care (New Rochelle) 2016; 5:208-229. [PMID: 27134765 DOI: 10.1089/wound.2013.0506] [Citation(s) in RCA: 250] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Significance: The regeneration of healthy and functional skin remains a huge challenge due to its multilayer structure and the presence of different cell types within the extracellular matrix in an organized way. Despite recent advances in wound care products, traditional therapies based on natural origin compounds, such as plant extracts, honey, and larvae, are interesting alternatives. These therapies offer new possibilities for the treatment of skin diseases, enhancing the access to the healthcare, and allowing overcoming some limitations associated to the modern products and therapies, such as the high costs, the long manufacturing times, and the increase in the bacterial resistance. This article gives a general overview about the recent advances in traditional therapies for skin wound healing, focusing on the therapeutic activity, action mechanisms, and clinical trials of the most commonly used natural compounds. New insights in the combination of traditional products with modern treatments and future challenges in the field are also highlighted. Recent Advances: Natural compounds have been used in skin wound care for many years due to their therapeutic activities, including anti-inflammatory, antimicrobial, and cell-stimulating properties. The clinical efficacy of these compounds has been investigated through in vitro and in vivo trials using both animal models and humans. Besides the important progress regarding the development of novel extraction methods, purification procedures, quality control assessment, and treatment protocols, the exact mechanisms of action, side effects, and safety of these compounds need further research. Critical Issues: The repair of skin lesions is one of the most complex biological processes in humans, occurring throughout an orchestrated cascade of overlapping biochemical and cellular events. To stimulate the regeneration process and prevent the wound to fail the healing, traditional therapies and natural products have been used with promising results. Although these products are in general less expensive than the modern treatments, they can be sensitive to the geographic location and season, and exhibit batch-to-batch variation, which can lead to unexpected allergic reactions, side effects, and contradictory clinical results. Future Directions: The scientific evidence for the use of traditional therapies in wound healing indicates beneficial effects in the treatment of different lesions. However, specific challenges remain unsolved. To extend the efficacy and the usage of natural substances in wound care, multidisciplinary efforts are necessary to prove the safety of these products, investigate their side effects, and develop standard controlled trials. The development of good manufacturing practices and regulatory legislation also assume a pivotal role in order to improve the use of traditional therapies by the clinicians and to promote their integration into the national health system. Current trends move to the development of innovative wound care treatments, combining the use of traditional healing agents and modern products/practices, such as nanofibers containing silver nanoparticles, Aloe vera loaded into alginate hydrogels, propolis into dressing films, and hydrogel sheets containing honey.
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Affiliation(s)
- Rúben F. Pereira
- Centre for Rapid and Sustainable Product Development (CDRsp), Polytechnic Institute of Leiria, Marinha Grande, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Paulo J. Bártolo
- Centre for Rapid and Sustainable Product Development (CDRsp), Polytechnic Institute of Leiria, Marinha Grande, Portugal
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133
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Qi G, Yang L, Xiao C, Shi J, Mi Y, Liu X. Nutrient values and bioactivities of the extracts from three fern species in China: a comparative assessment. Food Funct 2016; 6:2918-29. [PMID: 26227747 DOI: 10.1039/c5fo00510h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Pteridium aquilinum, Osmunda cinnamomea Linn, and Athyrium multidentatum (Doll.) Ching are three fern species widely consumed as potherbs and traditional medicinal herbs in China. Nevertheless, no detailed comparative assessments of their nutrient values and bioactivities have been reported. In this paper, we examined the nutrient content of these ferns and the bioactivities of their extracts with a comparative method. The results indicated that they were nutrient dense for proteins, carbohydrates, fat and minerals. Compared with Pteridium aquilinum and Osmunda cinnamomea Linn, the extract from Athyrium multidentatum (Doll.) Ching was found to possess the strongest antioxidant activity, protective effects on biomolecules, cellular antioxidant activity, and antiproliferative effects owing to its highest total phenolic (476.52 ± 11.26 mg GAE per g extract) and total flavonoid (924.81 ± 4.25 mg RNE per g extract) contents. Further, Athyrium multidentatum (Doll.) Ching can lead to caspase-3 activation, poly ADP-ribose polymerase cleavage, mitochondrial membrane potential (MMP) reduction and inhibition of wound-healing in a dose-dependent manner in HepG2 cells. These results demonstrate the remarkable potential of Pteridium aquilinum, Osmunda cinnamomea Linn, and Athyrium multidentatum (Doll.) Ching as valuable sources of nutrients and natural antioxidants, and among which Athyrium multidentatum (Doll.) Ching has potential anticancer properties.
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Affiliation(s)
- Guoyuan Qi
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China.
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134
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Pusnik M, Imeri M, Deppierraz G, Bruinink A, Zinn M. The agar diffusion scratch assay--A novel method to assess the bioactive and cytotoxic potential of new materials and compounds. Sci Rep 2016; 6:20854. [PMID: 26861591 PMCID: PMC4748257 DOI: 10.1038/srep20854] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 01/07/2016] [Indexed: 12/16/2022] Open
Abstract
A profound in vitro evaluation not only of the cytotoxic but also of bioactive potential of a given compound or material is crucial for predicting potential effects in the in vivo situation. However, most of the current methods have weaknesses in either the quantitative or qualitative assessment of cytotoxicity and/or bioactivity of the test compound. Here we describe a novel assay combining the ISO 10993-5 agar diffusion test and the scratch also termed wound healing assay. In contrast to these original tests this assay is able to detect and distinguish between cytotoxic, cell migration modifying and cytotoxic plus cell migration modifying compounds, and this at higher sensitivity and in a quantitative way.
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Affiliation(s)
- Mascha Pusnik
- Institute of Life Technologies, HES-SO Valais-Wallis, CH-1950 Sion, Switzerland
| | - Minire Imeri
- Institute of Life Technologies, HES-SO Valais-Wallis, CH-1950 Sion, Switzerland
| | - Grégoire Deppierraz
- Institute of Life Technologies, HES-SO Valais-Wallis, CH-1950 Sion, Switzerland
| | - Arie Bruinink
- Laboratory for Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology - Empa, CH-9014 St. Gallen, Switzerland
| | - Manfred Zinn
- Institute of Life Technologies, HES-SO Valais-Wallis, CH-1950 Sion, Switzerland
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135
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S. I, A. V. B, Velswamy P, T. S. U, Perumal PT. Design and development of a piscine collagen blended pullulan hydrogel for skin tissue engineering. RSC Adv 2016. [DOI: 10.1039/c6ra03578g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This present study was designed to prepare a super-absorbent tailor-made collagen–pullulan hydrogel with improved mechanical stability and well-defined biocompatibility for skin tissue engineering.
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Affiliation(s)
- Iswariya S.
- Bioproducts Division
- CSIR-Central Leather Research Institute
- Chennai 600 020
- India
| | - Bhanukeerthi A. V.
- Department of Pharmacology
- GIET School of Pharmacy
- Rajahmundry-533029
- India
| | - Poornima Velswamy
- Bioproducts Division
- CSIR-Central Leather Research Institute
- Chennai 600 020
- India
| | - Uma T. S.
- Bioproducts Division
- CSIR-Central Leather Research Institute
- Chennai 600 020
- India
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136
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Dasgupta N, Ranjan S, Shree M, Saleh MAM, Ramalingam C. Blood coagulating effect of marigold (Tagetes erecta L.) leaf and its bioactive compounds. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s13596-015-0200-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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137
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Cormier N, Yeo A, Fiorentino E, Paxson J. Optimization of the Wound Scratch Assay to Detect Changes in Murine Mesenchymal Stromal Cell Migration After Damage by Soluble Cigarette Smoke Extract. J Vis Exp 2015:e53414. [PMID: 26709527 DOI: 10.3791/53414] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Cell migration is vital to many physiological and pathological processes including tissue development, repair, and regeneration, cancer metastasis, and inflammatory responses. Given the current interest in the role of mesenchymal stromal cells in mediating tissue repair, we are interested in quantifying the migratory capacity of these cells, and understanding how migratory capacity may be altered after damage. Optimization of a rigorously quantitative migration assay that is both easy to customize and cost-effective to perform is key to answering questions concerning alterations in cell migration in response to various stimuli. Current methods for quantifying cell migration, including scratch assays, trans-well migration assays (Boyden chambers), micropillar arrays, and cell exclusion zone assays, possess a range of limitations in reproducibility, customizability, quantification, and cost-effectiveness. Despite its prominent use, the scratch assay is confounded by issues with reproducibility related to damage of the cell microenvironment, impediments to cell migration, influence of neighboring senescent cells, and cell proliferation, as well as lack of rigorous quantification. The optimized scratch assay described here demonstrates robust outcomes, quantifiable and image-based analysis capabilities, cost-effectiveness, and adaptability to other applications.
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Affiliation(s)
| | | | | | - Julia Paxson
- Department of Biology, College of the Holy Cross;
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138
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Improvement of skin wound healing in diabetic mice by kinin B2 receptor blockade. Clin Sci (Lond) 2015; 130:45-56. [PMID: 26443866 DOI: 10.1042/cs20150295] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 10/06/2015] [Indexed: 01/11/2023]
Abstract
Impaired skin wound healing is a major medical problem in diabetic subjects. Kinins exert a number of vascular and other actions limiting organ damage in ischaemia or diabetes, but their role in skin injury is unknown. We investigated, through pharmacological manipulation of bradykinin B1 and B2 receptors (B1R and B2R respectively), the role of kinins in wound healing in non-diabetic and diabetic mice. Using two mouse models of diabetes (streptozotocin-induced and db/db mice) and non-diabetic mice, we assessed the effect of kinin receptor activation or inhibition by subtype-selective pharmacological agonists (B1R and B2R) and antagonist (B2R) on healing of experimental skin wounds. We also studied effects of agonists and antagonist on keratinocytes and fibroblasts in vitro. Levels of Bdkrb1 (encoding B1R) and Bdkrb2 (encoding B2R) mRNAs increased 1-2-fold in healthy and wounded diabetic skin compared with in non-diabetic skin. Diabetes delayed wound healing. The B1R agonist had no effect on wound healing. In contrast, the B2R agonist impaired wound repair in both non-diabetic and diabetic mice, inducing skin disorganization and epidermis thickening. In vitro, B2R activation unbalanced fibroblast/keratinocyte proliferation and increased keratinocyte migration. These effects were abolished by co-administration of B2R antagonist. Interestingly, in the two mouse models of diabetes, the B2R antagonist administered alone normalized wound healing. This effect was associated with the induction of Ccl2 (encoding monocyte chemoattractant protein 1)/Tnf (encoding tumour necrosis factor α) mRNAs. Thus stimulation of kinin B2 receptor impairs skin wound healing in mice. B2R activation occurs in the diabetic skin and delays wound healing. B2R blockade improves skin wound healing in diabetic mice and is a potential therapeutic approach to diabetic ulcers.
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139
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A Bio-Guided Fractionation to Assess the Inhibitory Activity of Calendula officinalis L. on the NF-κB Driven Transcription in Human Gastric Epithelial Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:727342. [PMID: 26491463 PMCID: PMC4600869 DOI: 10.1155/2015/727342] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 09/08/2015] [Indexed: 11/18/2022]
Abstract
Calendula officinalis L. has been largely known for its topical anti-inflammatory properties; however, there are no experimental evidences about its antiphlogistic effect at the gastric level. To investigate whether marigold might exert an activity against gastric inflammation, a CH2Cl2 extract obtained from C. officinalis flowers was evaluated in vitro on the NF-κB pathway. The lipophilic extract demonstrated a significant inhibitory effect on the NF-κB driven transcription. The identification of active compounds was conducted by a bio-guided fractionation of the extract that afforded 16 fractions. Fraction J exhibited a concentration-dependent inhibitory activity on the NF-κB driven transcription and significantly contributed to the antiphlogistic effect showed by CH2Cl2 extract. The main components of fraction J were loliolide and the fucoside acetates of β-eudesmol and viridiflorol. HPLC analysis of fractions D and E led to the identification and isolation of triterpene esters that showed a concentration-dependent inhibition of the NF-κB driven transcription, with faradiol-3-myristate and the corresponding aglycone being the most active compounds. The present study provides some experimental evidences that Calendula officinalis L. may exert an anti-inflammatory activity on the gastric district by the inhibition of the NF-κB system, identifying the compounds responsible, at least in part, for the observed effect.
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140
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Gamal W, Borooah S, Smith S, Underwood I, Srsen V, Chandran S, Bagnaninchi PO, Dhillon B. Real-time quantitative monitoring of hiPSC-based model of macular degeneration on Electric Cell-substrate Impedance Sensing microelectrodes. Biosens Bioelectron 2015; 71:445-455. [PMID: 25950942 PMCID: PMC4456427 DOI: 10.1016/j.bios.2015.04.079] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 04/15/2015] [Accepted: 04/23/2015] [Indexed: 01/29/2023]
Abstract
Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world. Humanized disease models are required to develop new therapies for currently incurable forms of AMD. In this work, a tissue-on-a-chip approach was developed through combining human induced pluripotent stem cells, Electric Cell-substrate Impedance Sensing (ECIS) and reproducible electrical wounding assays to model and quantitatively study AMD. Retinal Pigment Epithelium (RPE) cells generated from a patient with an inherited macular degeneration and from an unaffected sibling were used to test the model platform on which a reproducible electrical wounding assay was conducted to model RPE damage. First, a robust and reproducible real-time quantitative monitoring over a 25-day period demonstrated the establishment and maturation of RPE layers on the microelectrode arrays. A spatially controlled RPE layer damage that mimicked cell loss in AMD disease was then initiated. Post recovery, significant differences (P < 0.01) in migration rates were found between case (8.6 ± 0.46 μm/h) and control cell lines (10.69 ± 0.21 μm/h). Quantitative data analysis suggested this was achieved due to lower cell-substrate adhesion in the control cell line. The ECIS cell-substrate adhesion parameter (α) was found to be 7.8 ± 0.28 Ω(1/2)cm for the case cell line and 6.5 ± 0.15 Ω(1/2)cm for the control. These findings were confirmed using cell adhesion biochemical assays. The developed disease model-on-a-chip is a powerful platform for translational studies with considerable potential to investigate novel therapies by enabling real-time, quantitative and reproducible patient-specific RPE cell repair studies.
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Affiliation(s)
- W Gamal
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, EH9 3DW, United Kingdom
| | - S Borooah
- MRC Centre for Regenerative Medicine, The University of Edinburgh, EH16 4UU, United Kingdom; Centre for Clinical Brain Sciences, The University of Edinburgh, EH16 4SB, United Kingdom; Euan MacDonald Centre for MND Research, The University of Edinburgh, EH16 4SB, United Kingdom; Centre for Neuroregeneration, The University of Edinburgh, EH16 4SB, United Kingdom; The Anne Rowling Regenerative Neurology Clinic, The University of Edinburgh, EH16 4SB, United Kingdom
| | - S Smith
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, EH9 3DW, United Kingdom
| | - I Underwood
- Institute for Integrated Micro and Nano Systems, School of Engineering, The University of Edinburgh, EH9 3JF, United Kingdom
| | - V Srsen
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, EH9 3DW, United Kingdom
| | - S Chandran
- MRC Centre for Regenerative Medicine, The University of Edinburgh, EH16 4UU, United Kingdom; Centre for Clinical Brain Sciences, The University of Edinburgh, EH16 4SB, United Kingdom; Euan MacDonald Centre for MND Research, The University of Edinburgh, EH16 4SB, United Kingdom; Centre for Neuroregeneration, The University of Edinburgh, EH16 4SB, United Kingdom; The Anne Rowling Regenerative Neurology Clinic, The University of Edinburgh, EH16 4SB, United Kingdom
| | - P O Bagnaninchi
- MRC Centre for Regenerative Medicine, The University of Edinburgh, EH16 4UU, United Kingdom.
| | - B Dhillon
- Centre for Clinical Brain Sciences, The University of Edinburgh, EH16 4SB, United Kingdom; The Anne Rowling Regenerative Neurology Clinic, The University of Edinburgh, EH16 4SB, United Kingdom; School of Clinical Sciences, The University of Edinburgh, EH16 4SB, United Kingdom
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141
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Meng XG, Yue SW. Dexamethasone disrupts cytoskeleton organization and migration of T47D Human breast cancer cells by modulating the AKT/mTOR/RhoA pathway. Asian Pac J Cancer Prev 2015; 15:10245-50. [PMID: 25556455 DOI: 10.7314/apjcp.2014.15.23.10245] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Glucocorticoids are commonly co-administered with chemotherapy to prevent drug-induced allergic reactions, nausea, and vomiting, and have anti-tumor functions clinically; however, the distinct effects of GC on subtypes of tumor cells, especially in breast cancer cells, are still not well understood. In this study, we aimed to clarify the effect of GC on subtypes of T47D breast cancer cells by focusing on apoptosis, cell organization and migration, and underluing molecular mechanisms. MATERIALS AND METHODS The cell scratch test was performed to observe the cell migration rate in T47D cells treated with dexamethasone (Dex). Hoechst and MTT assays were conducted to detect cell survival and rhodamine-labeled phalloidin staining to observe cytoskeleton dynamics. Related factors in the AKT/mTOR pathway were determined by Western blotting. RESULTS Dex treatment could effectively inhibit T47D breast cancer cell migration with disruption of the cytoskeletal dynamic organization. Moreover, the effect of Dex on cell migration and cytoskeleton may be mediated by AKT/ mTOR/RhoA pathway. Although Dex inhibited T47D cell migration, it alone may not induce cell apoptosis in T47D cells. CONCLUSIONS Dex in T47D human breast cancer cells could effectively inhibit cell migration by disrupting the cytoskeletal dynamic organization, which may be mediated by the AKT/mTOR/RhoA pathway. Our work suggests that glucocorticoid/Dex clinical use may prove helpful for the treatment of breast cancer metastasis.
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Affiliation(s)
- Xian-Guo Meng
- Department of Physical Medicine and Rehabilitation, Qilu Hospital, Shandong University, Jinan, China E-mail :
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142
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Geller FC, Teixeira MR, Pereira ABD, Dourado LPA, Souza DG, Braga FC, Simões CMO. Evaluation of the Wound Healing Properties ofHancornia speciosaLeaves. Phytother Res 2015; 29:1887-93. [DOI: 10.1002/ptr.5438] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/22/2015] [Accepted: 07/28/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Fabiana Cristina Geller
- Department of Pharmaceutical Sciences, Center of Health Sciences; Universidade Federal de Santa Catarina; Campus Trindade Florianópolis SC 88.040-900 Brazil
| | - Marina Rodrigues Teixeira
- Department of Pharmaceutical Sciences, Center of Health Sciences; Universidade Federal de Santa Catarina; Campus Trindade Florianópolis SC 88.040-900 Brazil
| | - Ana Bárbara Dias Pereira
- Department of Pharmaceutical Products, Faculty of Pharmacy; Federal University of Minas Gerais; Belo Horizonte MG Brazil
| | - Luana Pereira Antunes Dourado
- Department of Microbiology, Institute of Biological Sciences; Universidade Federal de Minas Gerais; Campus Pampulha Belo Horizonte MG 31.270-901 Brazil
| | - Danielle G. Souza
- Department of Microbiology, Institute of Biological Sciences; Universidade Federal de Minas Gerais; Campus Pampulha Belo Horizonte MG 31.270-901 Brazil
| | - Fernão Castro Braga
- Department of Pharmaceutical Products, Faculty of Pharmacy; Federal University of Minas Gerais; Belo Horizonte MG Brazil
| | - Cláudia Maria Oliveira Simões
- Department of Pharmaceutical Sciences, Center of Health Sciences; Universidade Federal de Santa Catarina; Campus Trindade Florianópolis SC 88.040-900 Brazil
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143
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Schneider NFZ, Geller FC, Persich L, Marostica LL, Pádua RM, Kreis W, Braga FC, Simões CMO. Inhibition of cell proliferation, invasion and migration by the cardenolides digitoxigenin monodigitoxoside and convallatoxin in human lung cancer cell line. Nat Prod Res 2015; 30:1327-31. [PMID: 26252521 DOI: 10.1080/14786419.2015.1055265] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Cardiac glycosides consist of a large family of naturally derived compounds that are clinically used to treat congestive heart failure, and also present anticancer properties. In this study, the cytotoxic effects of two cardenolides, digitoxigenin monodigitoxoside (DGX) and convallatoxin (CON) were screened in four human tumour cell lines. Both compounds showed anti-proliferative effects in all tumour cells, at nanomolar concentrations. Since the human lung cancer cell line A549 was the most sensitive, we investigated the anti-proliferative, anti-migratory and anti-invasive effects of these cardenolides. DGX and CON reduced A549 cell migration, being able to reduce more than 90% of cell invasion. Their effects on the expression of key regulators of metastatic mechanism showed decreased levels of MMP-2, MMP-9 and p-FAK. Both compounds also presented low toxicity for healthy cells. Finally, this work provides the first insights into the effects of these cardenolides on key steps of lung cancer metastasis.
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Affiliation(s)
- Naira F Z Schneider
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Fabiana C Geller
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Lara Persich
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Lucas L Marostica
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Rodrigo M Pádua
- b Faculdade de Farmácia, Departamento de Produtos Farmacêuticos , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brazil
| | - Wolfgang Kreis
- c Department of Biology , Friedrich-Alexander Universität , Erlangen-Nürnberg , Germany
| | - Fernão C Braga
- b Faculdade de Farmácia, Departamento de Produtos Farmacêuticos , Universidade Federal de Minas Gerais , Belo Horizonte , MG , Brazil
| | - Cláudia M O Simões
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
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144
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Budovsky A, Yarmolinsky L, Ben-Shabat S. Effect of medicinal plants on wound healing. Wound Repair Regen 2015; 23:171-83. [DOI: 10.1111/wrr.12274] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 02/13/2015] [Accepted: 02/17/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Arie Budovsky
- Judea Regional Research & Development Center; Carmel
| | | | - Shimon Ben-Shabat
- Department of Biochemistry and Pharmacology; Faculty of Health Sciences, Ben-Gurion University of the Negev; Beer-Sheva Israel
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145
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Gumus ZP, Guler E, Demir B, Barlas FB, Yavuz M, Colpankan D, Senisik AM, Teksoz S, Unak P, Coskunol H, Timur S. Herbal infusions of black seed and wheat germ oil: Their chemical profiles, in vitro bio-investigations and effective formulations as Phyto-Nanoemulsions. Colloids Surf B Biointerfaces 2015; 133:73-80. [PMID: 26087391 DOI: 10.1016/j.colsurfb.2015.05.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/21/2015] [Accepted: 05/26/2015] [Indexed: 01/11/2023]
Abstract
The reported studies related to black seed oil (BSO) and wheat germ oil (WGO) have illustrated that they have a wide range of biological activities. Therefore, enhancing the amount of bio-active compounds that caused higher cell based anti-oxidative effect as well as cell proliferation, etc. in seed oils, infusion of crude plant material has been gained importance as a traditional technique. Herein, we accomplished the infusion of Calendula flowers that also contains many phyto-constituents into BSO and WGO. After the infusion of oils, the change of phytochemical amount was investigated and evaluated according to the oils by chromatography, radical scavenging activity. Subsequently, for investigating the biological impact upon live cells, cytotoxicity, cell-based antioxidant capacity, wound healing and radioprotective activity were tested with monkey kidney fibroblast like cells (Vero) and HaCaT keratinocytes. In vitro cell based experiments (wound healing and radioprotective activity) confirmed that Calendula infused BSO and WGO have greater bio-activity when compared to those plain forms. The herbal oils prepared with an effective extraction technique were incorporated into nanoemulsion systems which will be then called as 'Phyto-Nanoemulsion'. After herbal oil biomolecules were encapsulated into nanoemulsion based delivery systems, the designed formulations were investigated in terms of biological activities. In conclusion, these preparations could be a good candidate as a part of dermal cosmetic products or food supplements which have the therapeutic efficiency, especially after radio- or chemotherapy.
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Affiliation(s)
- Z Pinar Gumus
- Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, Ege University, 35100 Bornova, Izmir, Turkey
| | - Emine Guler
- Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, Ege University, 35100 Bornova, Izmir, Turkey; Faculty of Science, Biochemistry Department, Ege University, 35100 Bornova, Izmir, Turkey
| | - Bilal Demir
- Faculty of Science, Biochemistry Department, Ege University, 35100 Bornova, Izmir, Turkey
| | - F Baris Barlas
- Faculty of Science, Biochemistry Department, Ege University, 35100 Bornova, Izmir, Turkey
| | - Murat Yavuz
- Faculty of Science, Chemistry Department, Dicle University, 21280 Diyarbakir, Turkey
| | - Dilara Colpankan
- Faculty of Science, Biochemistry Department, Ege University, 35100 Bornova, Izmir, Turkey
| | | | - Serap Teksoz
- Institute of Nuclear Sciences, Ege University, 35100 Bornova, Izmir, Turkey
| | - Perihan Unak
- Institute of Nuclear Sciences, Ege University, 35100 Bornova, Izmir, Turkey
| | - Hakan Coskunol
- Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, Ege University, 35100 Bornova, Izmir, Turkey; School of Medicine, Department of Psychiatry, Ege University, 35100 Bornova, Izmir, Turkey; Ege LS, Ege University, 35100 Bornova, Izmir, Turkey
| | - Suna Timur
- Institute of Drug Abuse Toxicology & Pharmaceutical Sciences, Ege University, 35100 Bornova, Izmir, Turkey; Faculty of Science, Biochemistry Department, Ege University, 35100 Bornova, Izmir, Turkey.
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146
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Vittorazzi C, Endringer DC, Andrade TUD, Scherer R, Fronza M. Antioxidant, antimicrobial and wound healing properties of Struthanthus vulgaris. PHARMACEUTICAL BIOLOGY 2015; 54:331-337. [PMID: 25915104 DOI: 10.3109/13880209.2015.1040515] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Struthanthus vulgaris (Vell.) Mart. (Loranthaceae) has been widely used in traditional medicine in Brazil to bathe wounds. OBJECTIVE The objective of this study is to investigate the in vitro wound healing effects, together with the antioxidant and antimicrobial activities of S. vulgaris leaf and branch extracts. MATERIAL AND METHODS Ethanol leaf and branch extracts of S. vulgaris were investigated at 1-100 µg/ml concentrations in the scratch assay after 14 h. Antioxidant activity was investigated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging assay, and the antibacterial activity was tested at concentrations up to 1000 µg/ml against Gram-positive and Gram-negative bacteria by the microdilution test after 24 h. The total phenolic and flavonoid contents were determined by colorimetric methods. RESULTS Struthanthus vulgaris leaf and branch extracts at 100 µg/ml concentration stimulated migration and proliferation of fibroblasts and enhanced cell numbers by 56.2% and 18.6%, respectively. Antioxidant activity exhibited IC50 values of 24.3 and 18.9 µg/ml for the leaf and branch extracts, respectively. The ethanol leaf extract showed antimicrobial activity against the Gram-positive Staphylococcus mutans and Staphylococcus aureus bacteria, exhibiting minimum inhibitory concentration values of 125 and 500 µg/ml, respectively. An appreciable total phenolic content in the leaves (813.6 ± 2.7 mg/g) and branches (462.8 ± 9.6 mg/g), and relatively low concentration of flavonoids in the leaves (13.3 ± 4.3 mg/g) and branches (1.9 ± 0.2 mg/g), was detected. DISCUSSION AND CONCLUSION The antioxidant and antibacterial activities, together with the strong ability to stimulate proliferation and migration of fibroblasts, provide some support for the traditional use of S. vulgaris.
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Affiliation(s)
- Cátia Vittorazzi
- a Department of Pharmacy , University Vila Velha , Vila Velha , Espirito Santo , Brazil
| | | | | | - Rodrigo Scherer
- a Department of Pharmacy , University Vila Velha , Vila Velha , Espirito Santo , Brazil
| | - Marcio Fronza
- a Department of Pharmacy , University Vila Velha , Vila Velha , Espirito Santo , Brazil
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147
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Zubair M, Nybom H, Lindholm C, Brandner JM, Rumpunen K. Promotion of wound healing by Plantago major L. leaf extracts--ex-vivo experiments confirm experiences from traditional medicine. Nat Prod Res 2015; 30:622-4. [PMID: 25898918 DOI: 10.1080/14786419.2015.1034714] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The wound-healing properties of Plantago major L. (plantain) were evaluated using an ex-vivo porcine wound-healing model. Ethanol- and water-based extracts were prepared from greenhouse-grown and freeze-dried leaves of P. major. Both types of extracts stimulated wound healing in porcine skin, but the ethanol-based extracts had a somewhat stronger effect. A concentration of 1.0 mg/mL (on dry weight basis) produced the best results for both types of extracts.
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Affiliation(s)
- Muhammad Zubair
- a Department of Plant Breeding - Balsgård , Swedish University of Agricultural Sciences , Fjälkestadsvägen 459, 291 94 Kristianstad , Sweden.,b Department of Bioinformatics and Biotechnology , Government College University (GCU) , Faisalabad , Pakistan
| | - Hilde Nybom
- a Department of Plant Breeding - Balsgård , Swedish University of Agricultural Sciences , Fjälkestadsvägen 459, 291 94 Kristianstad , Sweden
| | | | - Johanna M Brandner
- d Department of Dermatology and Venerology , University Hospital Hamburg-Eppendorf , Martinistrasse 52, 20246 Hamburg , Germany
| | - Kimmo Rumpunen
- a Department of Plant Breeding - Balsgård , Swedish University of Agricultural Sciences , Fjälkestadsvägen 459, 291 94 Kristianstad , Sweden
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148
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Bussche L, Harman RM, Syracuse BA, Plante EL, Lu YC, Curtis TM, Ma M, Van de Walle GR. Microencapsulated equine mesenchymal stromal cells promote cutaneous wound healing in vitro. Stem Cell Res Ther 2015; 6:66. [PMID: 25889766 PMCID: PMC4413990 DOI: 10.1186/s13287-015-0037-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 02/25/2015] [Accepted: 03/04/2015] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION The prevalence of impaired cutaneous wound healing is high and treatment is difficult and often ineffective, leading to negative social and economic impacts for our society. Innovative treatments to improve cutaneous wound healing by promoting complete tissue regeneration are therefore urgently needed. Mesenchymal stromal cells (MSCs) have been reported to provide paracrine signals that promote wound healing, but (i) how they exert their effects on target cells is unclear and (ii) a suitable delivery system to supply these MSC-derived secreted factors in a controlled and safe way is unavailable. The present study was designed to provide answers to these questions by using the horse as a translational model. Specifically, we aimed to (i) evaluate the in vitro effects of equine MSC-derived conditioned medium (CM), containing all factors secreted by MSCs, on equine dermal fibroblasts, a cell type critical for successful wound healing, and (ii) explore the potential of microencapsulated equine MSCs to deliver CM to wounded cells in vitro. METHODS MSCs were isolated from the peripheral blood of healthy horses. Equine dermal fibroblasts from the NBL-6 (horse dermal fibroblast cell) line were wounded in vitro, and cell migration and expression levels of genes involved in wound healing were evaluated after treatment with MSC-CM or NBL-6-CM. These assays were repeated by using the CM collected from MSCs encapsulated in core-shell hydrogel microcapsules. RESULTS Our salient findings were that equine MSC-derived CM stimulated the migration of equine dermal fibroblasts and increased their expression level of genes that positively contribute to wound healing. In addition, we found that equine MSCs packaged in core-shell hydrogel microcapsules had similar effects on equine dermal fibroblast migration and gene expression, indicating that microencapsulation of MSCs does not interfere with the release of bioactive factors. CONCLUSIONS Our results demonstrate that the use of CM from MSCs might be a promising new therapy for impaired cutaneous wounds and that encapsulation may be a suitable way to effectively deliver CM to wounded cells in vivo.
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Affiliation(s)
- Leen Bussche
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14850, USA.
| | - Rebecca M Harman
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14850, USA.
| | - Bethany A Syracuse
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14850, USA.
| | - Eric L Plante
- Department of Biological Sciences, State University of New York at Cortland, 21 Graham Avenue, Cortland, NY, 13045, USA.
| | - Yen-Chun Lu
- Department of Biological and Environmental Engineering, Cornell University, Wing Road, Ithaca, NY, 14850, USA.
| | - Theresa M Curtis
- Department of Biological Sciences, State University of New York at Cortland, 21 Graham Avenue, Cortland, NY, 13045, USA.
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Wing Road, Ithaca, NY, 14850, USA.
| | - Gerlinde R Van de Walle
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14850, USA.
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149
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Barouti N, Mainetti C, Fontao L, Sorg O. L-Tryptophan as a Novel Potential Pharmacological Treatment for Wound Healing via Aryl Hydrocarbon Receptor Activation. Dermatology 2015; 230:332-9. [PMID: 25765536 DOI: 10.1159/000371876] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 12/13/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The aryl hydrocarbon receptor has been shown to be involved in wound healing. OBJECTIVE The aim of this study was to assess the effect of tryptophan on wound healing in vitro and in a clinical trial. METHODS The ability of tryptophan and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) to increase wound healing was assessed in an in vitro scratch wound model in human keratinocytes. Topical tryptophan and vehicle were assessed for 12 weeks in 51 patients with lower limb ulcers that were resistant to conventional therapies. RESULTS TCDD 0.1 nM and tryptophan 1 µM increased the rate of scratch recovery in a culture model. Topical tryptophan induced stronger pain relief and faster re-epithelialization than its vehicle in patients with lower limb ulcers. CONCLUSION Tryptophan shows promising potential as a novel topical treatment for wound healing.
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Affiliation(s)
- Neda Barouti
- Department of Dermatology, University Hospitals of Geneva, Geneva, Switzerland
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150
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Kwon HB, Park C, Jeon KH, Lee E, Park SE, Jun KY, Kadayat TM, Thapa P, Karki R, Na Y, Park MS, Rho SB, Lee ES, Kwon Y. A Series of Novel Terpyridine-Skeleton Molecule Derivants Inhibit Tumor Growth and Metastasis by Targeting Topoisomerases. J Med Chem 2015; 58:1100-22. [DOI: 10.1021/jm501023q] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Han-Byeol Kwon
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Global
Top 5 Program, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Chanmi Park
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Global
Top 5 Program, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Kyung-Hwa Jeon
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Global
Top 5 Program, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Eunyoung Lee
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Global
Top 5 Program, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - So-Eun Park
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Global
Top 5 Program, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Kyu-Yeon Jun
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Global
Top 5 Program, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Tara Man Kadayat
- College
of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Pritam Thapa
- College
of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Radha Karki
- College
of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Younghwa Na
- College
of Pharmacy, Cha University, Pochon 487-010, Republic of Korea
| | - Mi Sun Park
- Research Institute,
National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-769, Republic of Korea
| | - Seung Bae Rho
- Research Institute,
National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-769, Republic of Korea
| | - Eung-Seok Lee
- College
of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Youngjoo Kwon
- College
of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Global
Top 5 Program, Ewha Womans University, Seoul 120-750, Republic of Korea
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