1
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Butler K, Brinker CJ, Leong HS. Bridging the In Vitro to In Vivo gap: Using the Chick Embryo Model to Accelerate Nanoparticle Validation and Qualification for In Vivo studies. ACS NANO 2022; 16:19626-19650. [PMID: 36453753 PMCID: PMC9799072 DOI: 10.1021/acsnano.2c03990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 10/17/2022] [Indexed: 06/17/2023]
Abstract
We postulate that nanoparticles (NPs) for use in therapeutic applications have largely not realized their clinical potential due to an overall inability to use in vitro results to predict NP performance in vivo. The avian embryo and associated chorioallantoic membrane (CAM) has emerged as an in vivo preclinical model that bridges the gap between in vitro and in vivo, enabling rapid screening of NP behavior under physiologically relevant conditions and providing a rapid, accessible, economical, and more ethical means of qualifying nanoparticles for in vivo use. The CAM is highly vascularized and mimics the diverging/converging vasculature of the liver, spleen, and lungs that serve as nanoparticle traps. Intravital imaging of fluorescently labeled NPs injected into the CAM vasculature enables immediate assessment and quantification of nano-bio interactions at the individual NP scale in any tissue of interest that is perfused with a microvasculature. In this review, we highlight how utilization of the avian embryo and its CAM as a preclinical model can be used to understand NP stability in blood and tissues, extravasation, biocompatibility, and NP distribution over time, thereby serving to identify a subset of NPs with the requisite stability and performance to introduce into rodent models and enabling the development of structure-property relationships and NP optimization without the sacrifice of large populations of mice or other rodents. We then review how the chicken embryo and CAM model systems have been used to accelerate the development of NP delivery and imaging agents by allowing direct visualization of targeted (active) and nontargeted (passive) NP binding, internalization, and cargo delivery to individual cells (of relevance for the treatment of leukemia and metastatic cancer) and cellular ensembles (e.g., cancer xenografts of interest for treatment or imaging of cancer tumors). We conclude by showcasing emerging techniques for the utilization of the CAM in future nano-bio studies.
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Affiliation(s)
- Kimberly
S. Butler
- Molecular
and Microbiology, Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| | - C. Jeffrey Brinker
- Department
of Chemical and Biological Engineering and the Comprehensive Cancer
Center, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Hon Sing Leong
- Department
of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto M5G 1L7, Canada
- Biological
Sciences Platform, Sunnybrook Hospital, Toronto M4N 3M5, Canada
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2
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Synthesis, carbonic anhydrase inhibitory activity, anticancer activity and molecular docking studies of new imidazolyl hydrazone derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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3
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Doğan M, Koçyiğit ÜM, Gürdere MB, Ceylan M, Budak Y. Synthesis and biological evaluation of thiosemicarbazone derivatives. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 39:157. [PMID: 35861942 DOI: 10.1007/s12032-022-01784-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/22/2022] [Indexed: 11/26/2022]
Abstract
In this study, firstly, 22 thiosemicarbazone derivatives (3a-y) were synthesized. Then, ADME parameters, pharmacokinetic properties, drug-like structures, and suitability for medicinal chemistry of these molecules were studied theoretically by using SwissADME and admetSAR programs. According to the results of these theoretical studies, it can be said that the bioavailability and bioactivity of these compounds may be high. In silico molecular docking between ligands (thiosemicarbazone derivatives) and targeted proteins (protein-78 (GRP78) for C6 and quinone reductase-2 (4ZVM for MCF 7) was analyzed using Hex 8.0.0 docking software. According to the docking data, almost all molecules had higher negative E values than Imatinib (already used as a drug). For this, in vitro anticancer studies of these molecules were done. The cytotoxic activities of thiosemicarbazone derivatives (3a-y) were evaluated on C6 glioma and MCF7 breast cancer cell lines at 24 h, and Imatinib was used as the positive control. According to the results of the cytotoxicity assay, it can be said that the five compounds (3b, c, f, g, and m with IC50 = 10.59-9.08 μg/mL; Imatinib IC50 = 11.68 μg/mL) showed more potent cytotoxic activity than Imatinib on C6 cell line. Together with to these results ten compounds (3b, d, f, g, I, k, l, m, n, and r with IC50 = 7.02-9.08 μg/mL; Imatinib IC50 = 9.24 μg/mL) had a more effective cytotoxic activity against MCF7 cell line than Imatinib. Compound 3 m showed the highest antiproliferative effect against C6 and MCF7 cell lines.
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Affiliation(s)
- Murat Doğan
- Department of Basic Pharmaceutical Sciences, Cumhuriyet University, Sivas, Turkey
| | - Ümit M Koçyiğit
- Department of Pharmaceutical Biotechnology, Cumhuriyet University, Sivas, Turkey
| | - Meliha Burcu Gürdere
- Faculty of Science and Arts, Department of Chemistry, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey.
| | - Mustafa Ceylan
- Faculty of Science and Arts, Department of Chemistry, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey
| | - Yakup Budak
- Faculty of Science and Arts, Department of Chemistry, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey
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4
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Li D, Xu KY, Zhao WP, Liu MF, Feng R, Li DQ, Bai J, Du WL. Chinese Medicinal Herb-Derived Carbon Dots for Common Diseases: Efficacies and Potential Mechanisms. Front Pharmacol 2022; 13:815479. [PMID: 35281894 PMCID: PMC8906921 DOI: 10.3389/fphar.2022.815479] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/07/2022] [Indexed: 12/17/2022] Open
Abstract
The management of hemorrhagic diseases and other commonly refractory diseases (including gout, inflammatory diseases, cancer, pain of various forms and causes) are very challenging in clinical practice. Charcoal medicine is a frequently used complementary and alternative drug therapy for hemorrhagic diseases. However, studies (other than those assessing effects on hemostasis) on charcoal-processed medicines are limited. Carbon dots (CDs) are quasi-spherical nanoparticles that are biocompatible and have high stability, low toxicity, unique optical properties. Currently, there are various studies carried out to evaluate their efficacy and safety. The exploration of using traditional Chinese medicine (TCM) -based CDs for the treatment of common diseases has received great attention. This review summarizes the literatures on medicinal herbs-derived CDs for the treatment of the difficult-to-treat diseases, and explored the possible mechanisms involved in the process of treatment.
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Affiliation(s)
- Dan Li
- Department of Pharmacy, Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Kun-Yan Xu
- Department of Pharmacy, Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wei-Peng Zhao
- Department of Traditional Chinese Medicine, Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ming-Feng Liu
- Department of Pharmacy, Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Rui Feng
- Department of Pharmacy, Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - De-Qiang Li
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jing Bai
- Department of Pharmacy, Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wen-Li Du
- Department of Pharmacy, Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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5
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Doğan M, Şahbaz S, Uğurlu T, Sezer AD. Synthesis and characterization of chitosan-PVA hydrogel containing PEGylated recombinant epidermal growth factor on cell culture for wound healing substitute. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e191120s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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6
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DOĞAN M. Preparation of Chitosan-Polyvinyl Prolidone (PVP) Hydrogels with Fibroblast Growth Factor (FGF) and Investigation of in Vitro Characteristics. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2021. [DOI: 10.33808/clinexphealthsci.972758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Shin H, Choi JH, Lee JY. Probing TGF-β1-induced cytoskeletal rearrangement by fluorescent-labeled silica nanoparticle uptake assay. Biochem Biophys Rep 2021; 28:101137. [PMID: 34584989 PMCID: PMC8453189 DOI: 10.1016/j.bbrep.2021.101137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/31/2021] [Accepted: 09/15/2021] [Indexed: 11/28/2022] Open
Abstract
Cytoskeletal proteins are essential in maintaining cell morphology, proliferation, and viability as well as internalizing molecules in phagocytic and non-phagocytic cells. Orderly aligned cytoskeletons are disturbed by a range of biological processes, such as the epithelial–mesenchymal transition, which is observed in cancer metastasis. Although many biological methods have been developed to detect cytoskeletal rearrangement, simple and quantitative in vitro approaches are still in great demand. Herein, we applied a flow cytometry-based nanoparticle uptake assay to measure the degree of cytoskeletal rearrangement induced by transforming growth factor β1 (TGF-β1). For the assay, silica nanoparticles, selected for their high biocompatibility, were fluorescent-labeled to facilitate quantification with flow cytometry. Human keratinocyte HaCaT cells were treated with different concentrations of TGF-β1 and then exposed to FITC-labeled silica nanoparticles. Increasing concentrations of TGF-β1 induced gradual changes in cytoskeletal rearrangement, as confirmed by conventional assays. The level of nanoparticle uptake increased by TGF-β1 treatment in a dose-dependent manner, indicating that our nanoparticle uptake assay can be used as a quick and non-destructive approach to measure cytoskeletal rearrangement. Fluorescent-labeled silica nanoparticles are used to quantify the level of cytoskeletal rearrangement of HaCaT cells following TGF-β1 treatment as measured by flow cytometry. Increasing concentrations of TGF-β1 stimulated cytoskeletal rearrangement of HaCaT cells which in turn increased cellular nanoparticle uptake. The nanoparticle uptake assay is a useful tool in semi-quantifying phenotypical changes in epidermal keratinocyte HaCaT cells by TGF-β1, which could help the understanding of the epithelial–mesenchymal transition.
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Affiliation(s)
- HyeRim Shin
- Biometrology Group, Division of Chemical and Biological Metrology, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Jun-Hyuk Choi
- Biometrology Group, Division of Chemical and Biological Metrology, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Ji Youn Lee
- Biometrology Group, Division of Chemical and Biological Metrology, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
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8
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Carano F, Teti G, Ruggeri A, Chiarini F, Giorgetti A, Mazzotti MC, Fais P, Falconi M. Assessment of the structural and functional characteristics of human mesenchymal stem cells associated with a prolonged exposure of morphine. Sci Rep 2021; 11:19248. [PMID: 34584173 PMCID: PMC8478991 DOI: 10.1038/s41598-021-98682-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/08/2021] [Indexed: 01/10/2023] Open
Abstract
The discovery of the expression of opioid receptors in the skin and their role in orchestrating the process of tissue repair gave rise to questions regarding the potential effects of clinical morphine treatment in wound healing. Although short term treatment was reported to improve tissue regeneration, in vivo chronic administration was associated to an impairment of the physiological healing process and systemic fibrosis. Human mesenchymal stem cells (hMSCs) play a fundamental role in tissue regeneration. In this regard, acute morphine exposition was recently reported to impact negatively on the functional characteristics of hMSCs, but little is currently known about its long-term effects. To determine how a prolonged treatment could impair their functional characteristics, we exposed hMSCs to increasing morphine concentrations respectively for nine and eighteen days, evaluating in particular the fibrogenic potential exerted by the long-term exposition. Our results showed a time dependent cell viability decline, and conditions compatible with a cellular senescent state. Ultrastructural and protein expression analysis were indicative of increased autophagy, suggesting a relation to a detoxification activity. In addition, the enhanced transcription observed for the genes involved in the synthesis and regulation of type I collagen suggested the possibility that a prolonged morphine treatment might exert its fibrotic potential risk, even involving the hMSCs.
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Affiliation(s)
- Francesco Carano
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126, Bologna, Italy
| | - Gabriella Teti
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126, Bologna, Italy
| | - Alessandra Ruggeri
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126, Bologna, Italy
| | - Francesca Chiarini
- CNR-National Research Council of Italy, Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, 40136, Bologna, Italy.,IRCCS Istituto Ortopedico Rizzoli, 40136, Bologna, Italy
| | - Arianna Giorgetti
- Department of Medical and Surgical Sciences, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy
| | - Maria C Mazzotti
- Department of Medical and Surgical Sciences, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy
| | - Paolo Fais
- Department of Medical and Surgical Sciences, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy
| | - Mirella Falconi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via Irnerio 48, 40126, Bologna, Italy.
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9
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TAŞKIN D, DOĞAN M, ERMANOĞLU M, ARABACİ T. Achillea goniocephala Extract Loaded into Nanochitosan: In Vitro Cytotoxic and Antioxidant Activity. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2021. [DOI: 10.33808/clinexphealthsci.972180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Buhr CR, Wiesmann N, Tanner RC, Brieger J, Eckrich J. The Chorioallantoic Membrane Assay in Nanotoxicological Research-An Alternative for In Vivo Experimentation. NANOMATERIALS 2020; 10:nano10122328. [PMID: 33255445 PMCID: PMC7760845 DOI: 10.3390/nano10122328] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 12/14/2022]
Abstract
Nanomaterials unveil many applicational possibilities for technical and medical purposes, which range from imaging techniques to the use as drug carriers. Prior to any human application, analysis of undesired effects and characterization of their toxicological profile is mandatory. To address this topic, animal models, and rodent models in particular, are most frequently used. However, as the reproducibility and transferability to the human organism of animal experimental data is increasingly questioned and the awareness of animal welfare in society increases at the same time, methodological alternatives are urgently required. The chorioallantoic membrane (CAM) assay is an increasingly popular in ovo experimental organism suitable for replacement of rodent experimentation. In this review, we outline several application fields for the CAM assay in the field of nanotoxicology. Furthermore, analytical methods applicable with this model were evaluated in detail. We further discuss ethical, financial, and bureaucratic aspects and benchmark the assay with other established in vivo models such as rodents.
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Affiliation(s)
- Christoph R. Buhr
- Department of Otorhinolaryngology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Rhineland-Palatinate, Germany; (C.R.B.); (N.W.); (R.C.T.); (J.E.)
| | - Nadine Wiesmann
- Department of Otorhinolaryngology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Rhineland-Palatinate, Germany; (C.R.B.); (N.W.); (R.C.T.); (J.E.)
- Department of Oral and Maxillofacial Surgery, -Plastic Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Rhineland-Palatinate, Germany
| | - Rachel C. Tanner
- Department of Otorhinolaryngology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Rhineland-Palatinate, Germany; (C.R.B.); (N.W.); (R.C.T.); (J.E.)
| | - Jürgen Brieger
- Department of Otorhinolaryngology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Rhineland-Palatinate, Germany; (C.R.B.); (N.W.); (R.C.T.); (J.E.)
- Correspondence: ; Tel.: +49-(0)-6131-17-3354
| | - Jonas Eckrich
- Department of Otorhinolaryngology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Rhineland-Palatinate, Germany; (C.R.B.); (N.W.); (R.C.T.); (J.E.)
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11
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Yang DJ, Moh SH, Choi YH, Kim KW. β-Neoendorphin Enhances Wound Healing by Promoting Cell Migration in Keratinocyte. Molecules 2020; 25:molecules25204640. [PMID: 33053781 PMCID: PMC7587199 DOI: 10.3390/molecules25204640] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 01/01/2023] Open
Abstract
The skin is the largest and a remarkably plastic organ that serves as a protective barrier against environmental stimuli and injuries throughout life. Skin injuries are serious health problems, and wound healing is a critical process to replace devitalized cellular and tissue structures. Although some endogenous opioids are known to be involved in the modulation of wound healing, it remains to be determined whether the β-neoendorphin (β-NEP), an endogenous opioid, has beneficial effects on wound repair in human keratinocyte. In this study, we found that β-NEP accelerated wound repair through activation of mitogen-activated protein kinase (MAPK)/Erk1/2 signaling pathways in human keratinocytes. Moreover, the wound healing effect of β-NEP is mainly through the acceleration of keratinocyte migration without affecting cell proliferation. Therefore, our studies reveal that β-NEP plays an important role in the regulation of wound repair and suggest a therapeutic strategy to promote wound healing using β-NEP.
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Affiliation(s)
- Dong Joo Yang
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea;
- Department of Global Medical Science, Yonsei University Wonju College of Medicine, Wonju 26426, Korea
| | - Sang Hyun Moh
- Anti-aging Research Institute of BIO-FD&C Co. Ltd., Incheon 21990, Korea;
| | - Yun-Hee Choi
- Department of Internal Medicine, Division of Hypothalamic Research, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA;
| | - Ki Woo Kim
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea;
- Department of Applied Biological Science, BK21 FOUR, Yonsei University College of Dentistry, Seoul 03722, Korea
- Correspondence: ; Tel.: +82-2-2228-3052; Fax: +82-2-364-1085
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12
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Fonseca-Santos B, Silva PB, Rigon RB, Sato MR, Chorilli M. Formulating SLN and NLC as Innovative Drug Delivery Systems for Non-Invasive Routes of Drug Administration. Curr Med Chem 2020; 27:3623-3656. [PMID: 31232233 DOI: 10.2174/0929867326666190624155938] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 05/28/2019] [Accepted: 06/11/2019] [Indexed: 01/18/2023]
Abstract
Colloidal carriers diverge depending on their composition, ability to incorporate drugs and applicability, but the common feature is the small average particle size. Among the carriers with the potential nanostructured drug delivery application there are SLN and NLC. These nanostructured systems consist of complex lipids and highly purified mixtures of glycerides having varying particle size. Also, these systems have shown physical stability, protection capacity of unstable drugs, release control ability, excellent tolerability, possibility of vectorization, and no reported production problems related to large-scale. Several production procedures can be applied to achieve high association efficiency between the bioactive and the carrier, depending on the physicochemical properties of both, as well as on the production procedure applied. The whole set of unique advantages such as enhanced drug loading capacity, prevention of drug expulsion, leads to more flexibility for modulation of drug release and makes Lipid-based nanocarriers (LNCs) versatile delivery system for various routes of administration. The route of administration has a significant impact on the therapeutic outcome of a drug. Thus, the non-invasive routes, which were of minor importance as parts of drug delivery in the past, have assumed added importance drugs, proteins, peptides and biopharmaceuticals drug delivery and these include nasal, buccal, vaginal and transdermal routes. The objective of this paper is to present the state of the art concerning the application of the lipid nanocarriers designated for non-invasive routes of administration. In this manner, this review presents an innovative technological platform to develop nanostructured delivery systems with great versatility of application in non-invasive routes of administration and targeting drug release.
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Affiliation(s)
- Bruno Fonseca-Santos
- Sao Paulo State University - UNESP, School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, Sao Paulo 14801-903, Brazil
| | - Patrícia Bento Silva
- University of Brasilia (UnB), Department of Genetics and Morphology, Brasilia, Federal District 70910-970, Brazil
| | - Roberta Balansin Rigon
- University of Campinas (UNICAMP), Faculty of Pharmaceutical Sciences, Campinas, Sao Paulo 13083-871, Brazil
| | - Mariana Rillo Sato
- Sao Paulo State University - UNESP, School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, Sao Paulo 14801-903, Brazil
| | - Marlus Chorilli
- Sao Paulo State University - UNESP, School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, Sao Paulo 14801-903, Brazil
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13
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Zhang M, Cheng J, Zhang Y, Kong H, Wang S, Luo J, Qu H, Zhao Y. Green synthesis of Zingiberis rhizoma-based carbon dots attenuates chemical and thermal stimulus pain in mice. Nanomedicine (Lond) 2020; 15:851-869. [PMID: 32238028 DOI: 10.2217/nnm-2019-0369] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Aim: To evaluate the analgesic activity of Zingiberis rhizoma-based carbon dots (ZR-CDs). Materials & methods: Novel ZR-CDs were prepared via a facile, green pyrolysis method. Microstructure, optical and functional group properties were characterized. Acetic acid writhing, hot-plate and tail-immersion tests were performed using mice to evaluate the analgesic activity of ZR-CDs, followed by a preliminary study on the analgesic mechanism. Results: ZR-CDs with a quantum yield of 5.2% had a diameter ranging from 2.23 to 3.77 nm. Remarkable analgesic effect of ZR-CDs was observed against both thermal and chemical stimulus tests, possibly mediated by an opioid-like mechanism and the regulation of 5-hydroxytryptamine levels. Conclusion: ZR-CDs have a promising potential for biomedical application in relieving pain-related diseases.
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Affiliation(s)
- Meiling Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Jinjun Cheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Yue Zhang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Hui Kong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Suna Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Juan Luo
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Huihua Qu
- Center of Scientific Experiment, Beijing University of Chinese Medicine, Beijing, 100029, PR China
| | - Yan Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, PR China
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14
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Passos JS, Martino LCD, Dartora VFC, Araujo GLBD, Ishida K, Lopes LB. Development, skin targeting and antifungal efficacy of topical lipid nanoparticles containing itraconazole. Eur J Pharm Sci 2020; 149:105296. [PMID: 32151706 DOI: 10.1016/j.ejps.2020.105296] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/01/2020] [Accepted: 03/04/2020] [Indexed: 11/20/2022]
Abstract
Considering the increased incidence of sporotrichosis and other fungal infections in rural and urban areas, and the limitations and adverse effects of oral itraconazole therapy, we studied nanostructured lipid carriers (NLC) as topical delivery systems to increase itraconazole localization in skin lesions and associate efficacy with reduced systemic exposure. Unloaded and itraconazole-loaded NLC showed nanometric size (~216-340 nm), negative zeta potential (~ -17 mV), and high entrapment efficiency (~97%). NLC treatment decreased transepidermal water loss, an index of cutaneous barrier function, in intact skin and in tissues damaged with a linear incision (to mimic lesions) by 23-36%, and reduced drug transdermal delivery by ~2-fold, demonstrating its ability to localize itraconazole within the skin. The unloaded and itraconazole-loaded NLC were considered safe, as indicated by scores of 0.5 and 0.6 in HET-CAM models, respectively, and lack of toxicity (measured by survival and health index) on the Galleria mellonella larvae. The values obtained for minimum inhibitory concentration and minimum fungicidal concentration on Sporothrix brasiliensis yeasts were 0.25 and 32 μg/mL, respectively. The drug in solution displayed similar values, indicating that encapsulation does not hinder itraconazole antifungal effect. NLC treatment improved the survival rate and health index of G. mellonella larvae infected with S. brasiliensis yeasts and C. albicans, demonstrating antifungal efficacy. Taken together, itraconazole encapsulation in NLC represents a viable strategy to optimize cutaneous localization without compromising its efficacy against fungal infections.
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Affiliation(s)
- Julia Sapienza Passos
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil; School of Pharmaceutical Sciences of São Paulo, University of São Paulo, São Paulo, SP, Brazil
| | - Luiza Capello de Martino
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil; School of Pharmaceutical Sciences of São Paulo, University of São Paulo, São Paulo, SP, Brazil
| | | | - Gabriel L B de Araujo
- School of Pharmaceutical Sciences of São Paulo, University of São Paulo, São Paulo, SP, Brazil
| | - Kelly Ishida
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Luciana B Lopes
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.
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15
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Tansathien K, Suriyaaumporn P, Charoenputtakhun P, Ngawhirunpat T, Opanasopit P, Rangsimawong W. Development of Sponge Microspicule Cream as a Transdermal Delivery System for Protein and Growth Factors from Deer Antler Velvet Extract. Biol Pharm Bull 2019; 42:1207-1215. [PMID: 31257296 DOI: 10.1248/bpb.b19-00158] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sponge spicules are needle-like structures and used for dermabrasive treatment of the skin. This research aimed to develop an effective delivery system by using sponge spicules for enhancing skin permeation of bioactive proteins and growth factors from deer antler velvet (DAV). DAV was extracted by sonication and bioactivity studies were evaluated. The size of microspicules (MSs) was reduced and mixed with DAV extract cream. In vitro skin permeation was analyzed by using bovine serum albumin-fluorescein isothiocyanate conjugate (BSA-FITC) as a model macromolecular compound. For in vivo study, DAV extract formulations were applied on the skin of healthy humans, and effects were evaluated. Results showed that DAV extract containing proteins and growth factors increased the proliferation and migration of skin fibroblast cells. This extract was homogeneously mixed with spicule cream. Without blending, MS was 11.89 µm wide and 176.77 µm long; blending time exhibited short and broken MSs (MBs) for short blending (30 s) and fine powder (MF) for long blending (10 min). MS cream showed the highest permeation of BSA-FITC through the skin (2.26-fold enhancement), but it resulted in skin irritation. Therefore, MB cream that increased the permeation of BSA-FITC by 1.94-fold was not significantly different from MS formulations chosen for in vivo study. Applying DAV-containing MB cream on the skin for 14 d decreased the melanin content and erythema value but increased elasticity and hydration. Therefore, the MB-containing cream can enhance the macromolecule delivery through the skin, improve the skin properties, and avoid skin irritation.
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Affiliation(s)
| | | | | | | | - Praneet Opanasopit
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University
| | - Worranan Rangsimawong
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmaceutical Sciences, Ubon Ratchathani University
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Sharma JR, Lebeko M, Kidzeru EB, Khumalo NP, Bayat A. In Vitro and Ex Vivo Models for Functional Testing of Therapeutic Anti-scarring Drug Targets in Keloids. Adv Wound Care (New Rochelle) 2019; 8:655-670. [PMID: 31827980 PMCID: PMC6904937 DOI: 10.1089/wound.2019.1040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 09/09/2019] [Indexed: 01/08/2023] Open
Abstract
Significance: Keloids are benign fibro-proliferative raised dermal lesions that spread beyond the original borders of the wound, continue to grow, rarely regress, and are the most common in pigmented individuals after an abnormal wound healing response. The current treatment failure and respective challenges involved highlighting the underlying issue that the etiopathogenesis of keloids is still not well understood. Disease models are required to better understand the disease pathogenesis. It is not possible to establish keloids in animals because of the uniqueness of this disease to human skin. To address this challenge, along these lines, non-animal reproducible models are vital in investigating molecular mechanisms of keloid pathogenesis and therapeutics development. Recent Advances: Various non-animal models have been developed to better understand the molecular mechanisms involved in keloid scarring and aid in identifying and evaluating the therapeutic potential of novel drug candidates. In this scenario, the current review aims at describing in vitro monocultures, co-cultures, organotypic cultures, and ex vivo whole skin keloid tissue organ culture models. Critical Issues and Future Directions: Current treatment options for keloids are far from securing a cure or preventing disease recurrence. Identifying universally accepted effective therapy for keloids has been hampered by the absence of appropriate disease model systems. Animal models do not accurately mimic the disease, thus non-animal model systems are pivotal in keloid research. The use of these models is essential not only for a better understanding of disease biology but also for identifying and evaluating novel drug targets.
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Affiliation(s)
- Jyoti R. Sharma
- Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, Faculty of Health Sciences and Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Maribanyana Lebeko
- Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, Faculty of Health Sciences and Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Elvis B. Kidzeru
- Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, Faculty of Health Sciences and Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
- Centre for Medical Research, Institute of Medical Research and Medical Plant Studies, Ministry of Scientific Research and Innovation, Yaoundé, Cameroon
| | - Nonhlanhla P. Khumalo
- Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, Faculty of Health Sciences and Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Ardeshir Bayat
- Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, Faculty of Health Sciences and Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
- Plastic and Reconstructive Surgery Research, Division of Musculoskeletal & Dermatological Sciences, NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom
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17
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Huss MK, Felt SA, Pacharinsak C. Influence of Pain and Analgesia on Orthopedic and Wound-healing Models in Rats and Mice. Comp Med 2019; 69:535-545. [PMID: 31561753 DOI: 10.30802/aalas-cm-19-000013] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The surgical stress response and resulting physiologic changes can lead to postoperative complications and negatively impact animal welfare. Although appropriate pain management is crucial to reduce the pain and stress response to surgery, analgesic choice can significantly affect bone and wound healing. This review aims to summarize data from rat and mouse studies and to provide recommendations for integrating analgesia into orthopedic and wound healing models in these species. Data from other species, such as humans, rabbits and other rodents, is included, where available. From these data, we conclude that for orthopedic surgical models, opioids, local anesthetics and dissociative agents have minimal impact on fracture healing; cyclooxygenase 2 (COX2) selective nonsteroidal antiinflammatory drugs (NSAID) may be used in the shortterm; and steroids should be avoided. For wound healing models, short-term systemic or topical opioids have negligible impact on wound healing; NSAID or local anesthetics may be used short-term; and systemic steroids should be avoided. Alternative analgesics such as tramadol, gabapentin, ketamine, and acetaminophen warrant consideration and further evaluation for both orthopedic and wound healing models. In all cases, researchers and veterinarians should work together to determine the appropriate analgesic plan to minimize pain, as well as to minimize unwanted effects on the orthopedic and wound healing models themselves.
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Affiliation(s)
- Monika K Huss
- Department of Comparative Medicine, Stanford University, Stanford, California;,
| | - Stephen A Felt
- Department of Comparative Medicine, Stanford University, Stanford, California
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Bernal-Chávez S, Nava-Arzaluz MG, Quiroz-Segoviano RIY, Ganem-Rondero A. Nanocarrier-based systems for wound healing. Drug Dev Ind Pharm 2019; 45:1389-1402. [PMID: 31099263 DOI: 10.1080/03639045.2019.1620270] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In general, the systems intended for the treatment and recovery of wounds, seek to act as a coating for the damaged area, maintaining an adequate level of humidity, reducing pain, and preventing the invasion and proliferation of microorganisms. Although many of the systems that are currently on the market meet the purposes mentioned above, with the arrival of nanotechnology, it has sought to improve the performance of these coatings. The variety of nano-systems that have been proposed is very extensive, including the use of very different materials (natural or synthetic) ranging from polymers or lipids to systems derived from microorganisms. With the objective of improving the performance of the systems, seeking to combat several of the problems that arise in a wound, especially when it is chronic, these materials have been combined, giving rise to nanocomposites or scaffolds. In recent years, the interest in the development of systems for the treatment of wounds is notable, which is reflected in the increase in publications related to the subject. Therefore, this document presents generalities of systems involving nanocarriers, mentioning some examples of representative systems of each case.
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Affiliation(s)
- S Bernal-Chávez
- a División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán , Universidad Nacional Autónoma de México , Cuautitlán Izcalli , Mexico
| | - M G Nava-Arzaluz
- a División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán , Universidad Nacional Autónoma de México , Cuautitlán Izcalli , Mexico
| | - R I Y Quiroz-Segoviano
- a División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán , Universidad Nacional Autónoma de México , Cuautitlán Izcalli , Mexico
| | - A Ganem-Rondero
- a División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán , Universidad Nacional Autónoma de México , Cuautitlán Izcalli , Mexico
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Laghezza Masci V, Taddei A, Courant T, Tezgel O, Navarro F, Giorgi F, Mariolle D, Fausto A, Texier I. Characterization of Collagen/Lipid Nanoparticle–Curcumin Cryostructurates for Wound Healing Applications. Macromol Biosci 2019; 19:e1800446. [DOI: 10.1002/mabi.201800446] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/01/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Valentina Laghezza Masci
- Department for Innovation in BiologicalAgrifood and Forestry SystemsTuscia University Largo dell'Universita 01100 Viterbo Italy
| | - Anna‐Rita Taddei
- Section of Electron MicroscopyTuscia University Largo dell'Universita 01100 Viterbo Italy
| | - Thomas Courant
- Univ. Grenoble AlpesCEA‐LETI 17 rue des martyrs 38054 Grenoble cedex 9 France
| | - Ozgül Tezgel
- Univ. Grenoble AlpesCEA‐LETI 17 rue des martyrs 38054 Grenoble cedex 9 France
| | - Fabrice Navarro
- Univ. Grenoble AlpesCEA‐LETI 17 rue des martyrs 38054 Grenoble cedex 9 France
| | - Franco Giorgi
- University of Pisa Lungarno Antonio Pacinotti, 43 56126 Pisa Italy
| | - Denis Mariolle
- Univ. Grenoble AlpesCEA‐LETI 17 rue des martyrs 38054 Grenoble cedex 9 France
| | - Anna‐Maria Fausto
- Department for Innovation in BiologicalAgrifood and Forestry SystemsTuscia University Largo dell'Universita 01100 Viterbo Italy
| | - Isabelle Texier
- Univ. Grenoble AlpesCEA‐LETI 17 rue des martyrs 38054 Grenoble cedex 9 France
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Ashtikar M, Wacker MG. Nanopharmaceuticals for wound healing - Lost in translation? Adv Drug Deliv Rev 2018; 129:194-218. [PMID: 29567397 DOI: 10.1016/j.addr.2018.03.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/19/2018] [Accepted: 03/13/2018] [Indexed: 12/17/2022]
Abstract
Today, many of the newly developed pharmaceuticals and medical devices take advantage of nanotechnology and with a rising incidence of chronic diseases such as diabetes and cardiovascular disease, the number of patients afflicted globally with non-healing wounds is growing. This has created a requirement for improved therapies and wound care. However, converting the strategies applied in early research into new products is still challenging. Many of them fail to comply with the market requirements. This review discusses the legal and scientific challenges in the design of nanomedicines for wound healing. Are they lost in translation or is there a new generation of therapeutics in the pipeline?
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Affiliation(s)
- Mukul Ashtikar
- Department of Pharmaceutical Technology and Nanosciences, Fraunhofer-Institute for Molecular Biology and Applied Ecology (IME), Frankfurt, Germany; Institute of Pharmaceutical Technology, Goethe University, Frankfurt, Germany
| | - Matthias G Wacker
- Department of Pharmaceutical Technology and Nanosciences, Fraunhofer-Institute for Molecular Biology and Applied Ecology (IME), Frankfurt, Germany; Institute of Pharmaceutical Technology, Goethe University, Frankfurt, Germany.
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21
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The analgesia efficiency of ultrasmall magnetic iron oxide nanoparticles in mice chronic inflammatory pain model. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1975-1981. [DOI: 10.1016/j.nano.2017.05.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/02/2017] [Accepted: 05/09/2017] [Indexed: 11/22/2022]
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Topical application of morphine for wound healing and analgesia in patients with oral lichen planus: a randomized, double-blind, placebo-controlled study. Clin Oral Investig 2017; 22:305-311. [PMID: 28353022 DOI: 10.1007/s00784-017-2112-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/20/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The objective of this study was to investigate the effect of topical morphine on erosive/ulcerative lesions in patients with oral lichen planus (OLP). Previous studies reported on an enhanced remission of skin wounds when morphine was applied topically. MATERIALS AND METHODS This was single-center, prospective, double-blind, placebo-controlled, randomized, multi-arm (3), phase II study (RCT). Patients diagnosed with erosive and/or ulcerative OLP applied 0.2 or 0.4 mg morphine dissolved in glycerine, three times a day for 5 days. The primary outcome was the extent of healing. Secondary outcomes were as follows: (1) effect on pain, (2) presence and severity of opioid-related central and local side effects, (3) whether patients required 'rescue medication' for treatment of pain, and (4) total intake of test substance. RESULTS A total of 123 patients were screened for eligibility, 45 patients were recruited into the study, and 43 completed it. Patients applied a solution of either placebo or 0.2 or 0.4% morphine in groups of n = 12, n = 15, and n = 16, respectively. Extent of healing was similar in the three groups. Severity of pain was minor pre-treatment and throughout the course of the study. Only minor adverse events were reported (dry mouth, burning sensation). CONCLUSION Morphine did not enhance wound healing compared to placebo-treated patients. Healing was observed in all groups, which may be attributed to an effect of glycerine or to the natural course of the disease. Patients experienced only mild levels of pain, rendering the model insensitive for assessing pain. CLINICAL RELEVANCE OLP is a chronic disease and current treatment options are limited. Healing occurred in all three study groups, an effect we attribute to the carrier.
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23
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Ud-Din S, Bayat A. Non-animal models of wound healing in cutaneous repair: In silico, in vitro, ex vivo, and in vivo models of wounds and scars in human skin. Wound Repair Regen 2017; 25:164-176. [DOI: 10.1111/wrr.12513] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/15/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Sara Ud-Din
- Plastic and Reconstructive Surgery Research, Centre for Dermatology Research; University of Manchester; Manchester United Kingdom
| | - Ardeshir Bayat
- Plastic and Reconstructive Surgery Research, Centre for Dermatology Research; University of Manchester; Manchester United Kingdom
- Bioengineering Research Group, School of Materials, Faculty of Engineering & Physical Sciences; The University of Manchester; Manchester United Kingdom
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24
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Weinreb M, Nemcovsky CE. In vitro models for evaluation of periodontal wound healing/regeneration. Periodontol 2000 2017; 68:41-54. [PMID: 25867978 DOI: 10.1111/prd.12079] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2014] [Indexed: 12/14/2022]
Abstract
Periodontal wound healing and regeneration are highly complex processes, involving cells, matrices, molecules and genes that must be properly choreographed and orchestrated. As we attempt to understand and influence these clinical entities, we need experimental models to mimic the various aspects of human wound healing and regeneration. In vivo animal models that simulate clinical situations of humans can be costly and cumbersome. In vitro models have been devised to dissect wound healing/regeneration processes into discrete, analyzable steps. For soft tissue (e.g. gingival) healing, in vitro models range from simple culture of cells grown in monolayers and exposed to biological modulators or physical effectors and materials, to models in which cells are 'injured' by scraping and subsequently the 'wound' is filled with new or migrating cells, to three-dimensional models of epithelial-mesenchymal recombination or tissue explants. The cells employed are gingival keratinocytes, fibroblasts or endothelial cells, and their proliferation, migration, attachment, differentiation, survival, gene expression, matrix production or capillary formation are measured. Studies of periodontal regeneration also include periodontal ligament fibroblasts or progenitors, osteoblasts or osteoprogenitors, and cementoblasts. Regeneration models measure cellular proliferation, attachment and migration, as well as gene expression, transfer and differentiation into a mineralizing phenotype and biomineralization. Only by integrating data from models on all levels (i.e. a single cell to the whole organism) can various critical aspects of periodontal wound healing/regeneration be fully evaluated.
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Ambrozova N, Ulrichova J, Galandakova A. Models for the study of skin wound healing. The role of Nrf2 and NF-κB. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2017; 161:1-13. [PMID: 28115750 DOI: 10.5507/bp.2016.063] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 12/13/2016] [Indexed: 02/03/2023] Open
Abstract
Nrf2 and NF-κB transcription factors act in wound healing via their anti-inflammatory and anti-oxidant effects or through the immune response. Studying this process is a matter of some importance given the high cost of wound treatment. A major contribution in this regard is being made by models that enable investigation of the involvement of multiple factors in wound healing and testing new curative substances. This literature review was carried out via searches in the PubMed and Web of Science databases up to 2016. It covers skin wound healing, available models for its study (part I), the role of Nrf2 and NF-κB, substances that influence them and whether they can be used as markers (part II). Was found that in vitro assays are used for their availability but a holistic view must be established in vivo. In silico approaches are facilitating assessment of a vast amount of research data. Nfr2 and NF-κB play a crucial and reciprocal role in wound healing. Nrf2 controls repair-associated inflammation and protects against excessive accumulation of ROS while Nf-κB activates the innate immune reaction, proliferation and migration of cells, modulates expression of matrix metalloproteinases, secretion and stability of cytokines and growth factors for wound healing.
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Affiliation(s)
- Nikola Ambrozova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic.,Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
| | - Jitka Ulrichova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic.,Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
| | - Adela Galandakova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic.,Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
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Boreham A, Brodwolf R, Walker K, Haag R, Alexiev U. Time-Resolved Fluorescence Spectroscopy and Fluorescence Lifetime Imaging Microscopy for Characterization of Dendritic Polymer Nanoparticles and Applications in Nanomedicine. Molecules 2016; 22:molecules22010017. [PMID: 28029135 PMCID: PMC6155873 DOI: 10.3390/molecules22010017] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 12/16/2016] [Accepted: 12/16/2016] [Indexed: 12/11/2022] Open
Abstract
The emerging field of nanomedicine provides new approaches for the diagnosis and treatment of diseases, for symptom relief and for monitoring of disease progression. One route of realizing this approach is through carefully constructed nanoparticles. Due to the small size inherent to the nanoparticles a proper characterization is not trivial. This review highlights the application of time-resolved fluorescence spectroscopy and fluorescence lifetime imaging microscopy (FLIM) for the analysis of nanoparticles, covering aspects ranging from molecular properties to particle detection in tissue samples. The latter technique is particularly important as FLIM allows for distinguishing of target molecules from the autofluorescent background and, due to the environmental sensitivity of the fluorescence lifetime, also offers insights into the local environment of the nanoparticle or its interactions with other biomolecules. Thus, these techniques offer highly suitable tools in the fields of particle development, such as organic chemistry, and in the fields of particle application, such as in experimental dermatology or pharmaceutical research.
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Affiliation(s)
- Alexander Boreham
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany.
| | - Robert Brodwolf
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany.
- Helmholtz Virtual Institute-Multifunctional Biomaterials for Medicine, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.
| | - Karolina Walker
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany.
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany.
- Helmholtz Virtual Institute-Multifunctional Biomaterials for Medicine, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.
| | - Ulrike Alexiev
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany.
- Helmholtz Virtual Institute-Multifunctional Biomaterials for Medicine, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.
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Recent advancements in nanotechnological strategies in selection, design and delivery of biomolecules for skin regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:747-765. [DOI: 10.1016/j.msec.2016.05.074] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 05/03/2016] [Accepted: 05/18/2016] [Indexed: 12/31/2022]
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28
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Bigliardi PL, Dancik Y, Neumann C, Bigliardi‐Qi M. Opioids and skin homeostasis, regeneration and ageing – What's the evidence? Exp Dermatol 2016; 25:586-91. [DOI: 10.1111/exd.13021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Paul L. Bigliardi
- YLL School of Medicine National University Singapore Singapore
- Division of Rheumatology University Medicine Cluster National University Hospital Singapore
- Experimental Dermatology Institute of Medical Biology Agency for Science Technology & Research (A*STAR) Singapore
| | - Yuri Dancik
- Experimental Dermatology Institute of Medical Biology Agency for Science Technology & Research (A*STAR) Singapore
| | - Christine Neumann
- Experimental Dermatology Institute of Medical Biology Agency for Science Technology & Research (A*STAR) Singapore
| | - Mei Bigliardi‐Qi
- Experimental Dermatology Institute of Medical Biology Agency for Science Technology & Research (A*STAR) Singapore
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Hönzke S, Gerecke C, Elpelt A, Zhang N, Unbehauen M, Kral V, Fleige E, Paulus F, Haag R, Schäfer-Korting M, Kleuser B, Hedtrich S. Tailored dendritic core-multishell nanocarriers for efficient dermal drug delivery: A systematic top-down approach from synthesis to preclinical testing. J Control Release 2016; 242:50-63. [PMID: 27349353 DOI: 10.1016/j.jconrel.2016.06.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 06/16/2016] [Accepted: 06/22/2016] [Indexed: 12/12/2022]
Abstract
Drug loaded dendritic core-multishell (CMS) nanocarriers are of especial interest for the treatment of skin diseases, owing to their striking dermal delivery efficiencies following topical applications. CMS nanocarriers are composed of a polyglycerol core, connected by amide-bonds to an inner alkyl shell and an outer methoxy poly(ethylene glycol) shell. Since topically applied nanocarriers are subjected to biodegradation, the application of conventional amide-based CMS nanocarriers (10-A-18-350) has been limited by the potential production of toxic polyglycerol amines. To circumvent this issue, three tailored ester-based CMS nanocarriers (10-E-12-350, 10-E-15-350, 10-E-18-350) of varying inner alkyl chain length were synthesized and comprehensively characterized in terms of particle size, drug loading, biodegradation and dermal drug delivery efficiency. Dexamethasone (DXM), a potent drug widely used for the treatment of inflammatory skin diseases, was chosen as a therapeutically relevant test compound for the present study. Ester- and amide-based CMS nanocarriers delivered DXM more efficiently into human skin than a commercially available DXM cream. Subsequent in vitro and in vivo toxicity studies identified CMS (10-E-15-350) as the most biocompatible carrier system. The anti-inflammatory potency of DXM-loaded CMS (10-E-15-350) nanocarriers was assessed in TNFα supplemented skin models, where a significant reduction of the pro-inflammatory cytokine IL-8 was seen, with markedly greater efficacy than commercial DXM cream. In summary, we report the rational design and characterization of tailored, biodegradable, ester-based CMS nanocarriers, and their subsequent stepwise screening for biocompatibility, dermal delivery efficiency and therapeutic efficacy in a top-down approach yielding the best carrier system for topical applications.
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Affiliation(s)
- Stefan Hönzke
- Institute for Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Germany
| | - Christian Gerecke
- Institute of Nutritional Science, Department of Toxicology, University of Potsdam, Germany
| | - Anja Elpelt
- Institute for Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Germany
| | - Nan Zhang
- Institute for Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Germany
| | - Michael Unbehauen
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Germany
| | - Vivian Kral
- Institute for Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Germany
| | | | - Florian Paulus
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Germany
| | | | - Burkhard Kleuser
- Institute of Nutritional Science, Department of Toxicology, University of Potsdam, Germany
| | - Sarah Hedtrich
- Institute for Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Germany.
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Lee CH, Park YC, Kim JH, Kim WY, Lee YS, Kim YH, Min TJ. The effects of hydromorphone on astrocytic responses in cerebral ischemia. Anesth Pain Med (Seoul) 2016. [DOI: 10.17085/apm.2016.11.1.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Chang Hyung Lee
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Young Cheol Park
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Jae Hwan Kim
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Woon Young Kim
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Yoon Sook Lee
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Yun Hee Kim
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Too Jae Min
- Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
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Vellayappan M, Jaganathan SK, Manikandan A. Nanomaterials as a game changer in the management and treatment of diabetic foot ulcers. RSC Adv 2016. [DOI: 10.1039/c6ra24590k] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Nanoengineered biomaterials have tremendously improved the range of tools utilized for the control of as well as acceleration of healing of diabetic foot ulcers (DFU) over the last few decades.
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Affiliation(s)
- M. V. Vellayappan
- Faculty of Biosciences and Medical Engineering
- Universiti Teknologi Malaysia
- Johor Bahru 81310
- Malaysia
| | - S. K. Jaganathan
- Department for Management of Science and Technology Development
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
- Faculty of Applied Sciences
| | - A. Manikandan
- Department of Chemistry
- Bharath University
- Chennai
- India
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Abstract
INTRODUCTION Complete regeneration and restoration of the skin's structure and function with no or minimal scarring remains the goal of wound healing research. Novel pharmaceutical carriers have the potential to deliver wound healing drugs such as antibiotics, antimicrobials, human EGFs, and so on. Thus, offering a potential platform to overcome the limitations of conventional wound dressings. AREAS COVERED This review will describe various techniques such as microspheres, nanoparticles, liposomes, solid lipid nanoparticles, nano and microemulsions, sponges and wafers, and so on, that are successfully applied as carriers for wound healing drugs. Results of various studies including in vitro and in vivo experiments are also discussed. EXPERT OPINION Controlled and localized delivery of wound healing drugs to the wounds is more convenient than systemic administration as higher concentrations of the medication are delivered directly to the desired area in a sustained manner. They are also capable of providing optimum environmental conditions to facilitate wound healing while eliminating the need for frequent changes of dressings. As the number of people suffering from chronic wounds is increasing around the world, controlled delivery of wound healing agents have enormous potential for patient-friendly wound management.
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Affiliation(s)
- Lalduhsanga Pachuau
- a Department of Pharmaceutical Sciences, Assam University , Silchar, Assam 788011, India +91 986 236 2392 ;
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Impact of structural differences in hyperbranched polyglycerol–polyethylene glycol nanoparticles on dermal drug delivery and biocompatibility. Eur J Pharm Biopharm 2015; 88:625-34. [PMID: 25445303 DOI: 10.1016/j.ejpb.2014.10.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 10/23/2014] [Accepted: 10/27/2014] [Indexed: 12/30/2022]
Abstract
Polyglycerol scaffolds and nanoparticles emerged as prominent material for various biomedical applications including topical drug delivery. The impact of slight structural modifications on the nanoparticles' properties, drug delivery potential, and biocompatibility, however, is still not fully understood.Hence, we explored the influence of structural modifications of five structurally related polyglycerol-based nanoparticles (PG-PEG, SK1-SK5) on dermal drug delivery efficiency and biocompatibility. The PG-PEG particles were synthesized via randomly and controlled alkylated chemo-enzymatic approaches resulting in significantly varying particle sizes and interactions with guest molecules. Furthermore, weobserved considerably improved dermal drug delivery with the smallest particles SK4 and SK5 (11 nm and 14 nm) which also correlated with well-defined surface properties achieved by the controlled alkylated synthesis approach. The consistently good biocompatibility for all PG-PEG particles was mainly attributed to the neutral surface charge. No irritation potential, major cytotoxicity or genotoxicity was observed. Nevertheless, slightly better biocompatibility was again seen for the particles characterized by alkyl chain substitution in the core and not on the particle surface.Despite the high structural similarity of the PG-PEG particles, the synthesis and the functionalization significantly influenced particle properties, biocompatibility, and most significantly the drug delivery efficiency.
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Eckl KM, Weindl G, Ackermann K, Küchler S, Casper R, Radowski MR, Haag R, Hennies HC, Schäfer-Korting M. Increased cutaneous absorption reflects impaired barrier function of reconstructed skin models mimicking keratinisation disorders. Exp Dermatol 2015; 23:286-8. [PMID: 24612062 DOI: 10.1111/exd.12366] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2014] [Indexed: 11/29/2022]
Abstract
The aim of this study was to assess a recently established 3D model of congenital ichthyosis, representing severe epidermal barrier function defects, for skin penetration and permeation. We have generated disease models by knock-down of either TGM1 or ALOXE3 in primary human keratinocytes, and using keratinocytes and fibroblasts from patients with congenital ichthyosis. The results indicate disturbed barrier function as demonstrated by increased permeation of testosterone and caffeine particularly in TGM1 knock-down models compared to control models. In addition, enhanced penetration of the model dye nile red incorporated into solid lipid nanoparticles and core-multishell nanotransporters, respectively, was evident in disease models. Thus, in vitro skin disease models reproduce differences in barrier permeability and function seen in congenital ichthyosis and pave the way to personalised disease models. Furthermore, our findings indicate that nanocarriers may be useful in new, topical therapeutic approaches for the currently very limited treatment of congenital ichthyosis.
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Affiliation(s)
- Katja-Martina Eckl
- Dermatogenetics, Division of Human Genetics and Department of Dermatology and Venereology, Innsbruck Medical University, Innsbruck, Austria; Dermatogenetics, Cologne Center for Genomics, University of Cologne, Cologne, Germany
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The effect of steam sterilization on recombinant spider silk particles. Int J Pharm 2015; 481:125-31. [PMID: 25596418 DOI: 10.1016/j.ijpharm.2015.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 01/12/2015] [Accepted: 01/13/2015] [Indexed: 11/20/2022]
Abstract
In this work, the recombinant spider silk protein eADF4(C16) was used to fabricate particles in the submicron range using a micromixing method. Furthermore, particles in the micrometer range were produced using an ultrasonic atomizer system. Both particle species were manufactured by an all-aqueous process. The submicroparticles were 332 nm in average diameter, whereas 6.70 μm was the median size of the microparticles. Both particle groups showed a spherical shape and exhibited high β-sheet content in secondary structure. Submicro- and microparticles were subsequently steam sterilized and investigated with respect to particle size, secondary structure and thermal stability. Sterilization temperature and time were increased to assess the thermal stability of eADF4(C16) particles. Actually, particles remained stable and their properties did not change even after autoclaving at 134°C. Both, the untreated and the autoclaved submicroparticles showed no overt cytotoxicity on human dermal fibroblasts after incubation for 72 h. The eADF4(C16) particles were already loaded with proteins and small molecules in previous studies. With that, we can provide a highly promising parenteral drug delivery system based on a defined polypeptide carrier, manufactured with an all-aqueous process and being fully sterilizable.
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Do N, Weindl G, Fleige E, Salwiczek M, Koksch B, Haag R, Schäfer-Korting M. Core-multishell nanotransporters enhance skin penetration of the cell-penetrating peptide low molecular weight protamine. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nhung Do
- Institute of Pharmacy (Pharmacology and Toxicology); Freie Universität Berlin; 14195 Berlin Germany
| | - Günther Weindl
- Institute of Pharmacy (Pharmacology and Toxicology); Freie Universität Berlin; 14195 Berlin Germany
| | - Emanuel Fleige
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; 14195 Berlin Germany
| | - Mario Salwiczek
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; 14195 Berlin Germany
| | - Beate Koksch
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; 14195 Berlin Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; 14195 Berlin Germany
| | - Monika Schäfer-Korting
- Institute of Pharmacy (Pharmacology and Toxicology); Freie Universität Berlin; 14195 Berlin Germany
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Bigliardi PL, Neumann C, Teo YL, Pant A, Bigliardi-Qi M. Activation of the δ-opioid receptor promotes cutaneous wound healing by affecting keratinocyte intercellular adhesion and migration. Br J Pharmacol 2014; 172:501-14. [PMID: 24628261 PMCID: PMC4292964 DOI: 10.1111/bph.12687] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 02/28/2014] [Accepted: 03/06/2014] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND AND PURPOSE In addition to its analgesic functions, the peripheral opioid receptor system affects skin homeostasis by influencing cell differentiation, migration and adhesion; also, wound healing is altered in δ-opioid receptor knockout mice (DOPr–/–). Hence, we investigated δ-opioid receptor effects on the expression of several proteins of the desmosomal junction complex and on the migratory behaviour of keratinocytes. EXPERIMENTAL APPROACH Expression levels of desmosomal cadherins in wild-type and DOPr–/– mice, and the morphology of intercellular adhesion in human keratinocytes were analysed by immunofluorescence. To investigate the δ-opioid receptor activation pathway, protein expression was studied using Western blot and its effect on cellular migration determined by in vitro live cell migration recordings from human keratinocytes. KEY RESULTS Expression of the desmosomal cadherins, desmogleins 1 and 4, was up-regulated in skin from DOPr–/– mice, and down-regulated in δ-opioid receptor-overexpressing human keratinocytes. The localization of desmoplakin expression was rearranged from linear arrays emanating from cell borders to puncta in cell periphery, resulting in less stable intercellular adhesion. Migration and wound recovery were enhanced in human keratinocyte monolayers overexpressing δ-opioid receptors in vitro. These δ-opioid receptor effects were antagonized by specific PKCα/β inhibition indicating they were mediated through the PKC signalling pathway. Finally, cells overexpressing δ-opioid receptors developed characteristically long but undirected protrusions containing filamentous actin and δ-opioid receptors, indicating an enhanced migratory phenotype. CONCLUSION AND IMPLICATIONS Opioid receptors affect intercellular adhesion and wound healing mechanisms, underlining the importance of a cutaneous neuroendocrine system in wound healing and skin homeostasis. LINKED ARTICLES This article is part of a themed section on Opioids: New Pathways to Functional Selectivity. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2015.172.issue-2
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Affiliation(s)
- P L Bigliardi
- Institute of Medical Biology, Agency for Science Technology & Research (A*STAR), Singapore; Division of Rheumatology, National University Hospital, University Medicine Cluster, Singapore
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Mayet N, Choonara YE, Kumar P, Tomar LK, Tyagi C, Du Toit LC, Pillay V. A comprehensive review of advanced biopolymeric wound healing systems. J Pharm Sci 2014; 103:2211-30. [PMID: 24985412 DOI: 10.1002/jps.24068] [Citation(s) in RCA: 148] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/28/2014] [Accepted: 05/29/2014] [Indexed: 11/12/2022]
Abstract
Wound healing is a complex and dynamic process that involves the mediation of many initiators effective during the healing process such as cytokines, macrophages and fibroblasts. In addition, the defence mechanism of the body undergoes a step-by-step but continuous process known as the wound healing cascade to ensure optimal healing. Thus, when designing a wound healing system or dressing, it is pivotal that key factors such as optimal gaseous exchange, a moist wound environment, prevention of microbial activity and absorption of exudates are considered. A variety of wound dressings are available, however, not all meet the specific requirements of an ideal wound healing system to consider every aspect within the wound healing cascade. Recent research has focussed on the development of smart polymeric materials. Combining biopolymers that are crucial for wound healing may provide opportunities to synthesise matrices that are inductive to cells and that stimulate and trigger target cell responses crucial to the wound healing process. This review therefore outlines the processes involved in skin regeneration, optimal management and care required for wound treatment. It also assimilates, explores and discusses wound healing drug-delivery systems and nanotechnologies utilised for enhanced wound healing applications.
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Affiliation(s)
- Naeema Mayet
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, Parktown, 2193, South Africa
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Zaslansky R, Ben-Nun O, Ben-Shitrit S, Ullmann Y, Kopf A, Stein C. A randomized, controlled, clinical pilot study assessing the analgesic effect of morphine applied topically onto split-thickness skin wounds. ACTA ACUST UNITED AC 2014; 66:1559-66. [PMID: 24942055 DOI: 10.1111/jphp.12284] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 05/15/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To assess the effect of an opioid administered topically onto a standardized skin wound in patients without significant comorbidity. Findings to date are contradictory, often obtained from multimorbid patients with wounds lacking uniformity. METHODS Forty-four patients undergoing surgery for skin grafting were randomly assigned to receive morphine (0.25, 0.75 or 1.25 mg/100 cm(2) wound size) in hydroxyethylcellulose gel or placebo applied onto the excised split-thickness donor wound at the end of surgery. Pain, supplementary systemic opioids and adverse effects were assessed during the first 24 h after application. Healing was examined when the dressings were removed. KEY FINDINGS Morphine doses ranged from 0.25 to 5.4 mg (mean 1.93 ± standard deviation 1.34 mg). No differences in pain scores or use of supplementary analgesics were found between the groups. Serious adverse effects did not occur; healing was not impaired. Large intragroup variability was observed for pain scores, wound sizes and supplementary analgesia. CONCLUSIONS Patients treated with topically applied morphine gel onto standardized skin wounds did not report lower pain scores compared with placebo-treated patients. Larger groups would be required to arrive at definitive conclusions. The split-thickness skin graft model can be used for future research.
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Affiliation(s)
- Ruth Zaslansky
- Department of Anesthesiology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
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40
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Doktorovova S, Souto EB, Silva AM. Nanotoxicology applied to solid lipid nanoparticles and nanostructured lipid carriers – A systematic review of in vitro data. Eur J Pharm Biopharm 2014; 87:1-18. [DOI: 10.1016/j.ejpb.2014.02.005] [Citation(s) in RCA: 254] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 01/22/2014] [Accepted: 02/04/2014] [Indexed: 12/13/2022]
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Ali-von Laue C, Zoschke C, Do N, Lehnen D, Küchler S, Mehnert W, Blaschke T, Kramer KD, Plendl J, Weindl G, Korting HC, Hoeller Obrigkeit D, Merk HF, Schäfer-Korting M. Improving topical non-melanoma skin cancer treatment: In vitro efficacy of a novel guanosine-analog phosphonate. Skin Pharmacol Physiol 2014; 27:173. [PMID: 24503861 DOI: 10.1159/000354118] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Accepted: 07/01/2013] [Indexed: 11/19/2022]
Abstract
Actinic keratosis, a frequent carcinoma in situ of non-melanoma skin cancer (NMSC), can transform into life-threatening cutaneous squamous cell carcinoma. Current treatment is limited due to low complete clearance rates and asks for novel therapeutic concepts; the novel purine nucleotide analogue OxBu may be an option. In order to enhance skin penetration, solid lipid nanoparticles (SLN, 136-156 nm) were produced with an OxBu entrapment efficiency of 96.5 ± 0.1%. For improved preclinical evaluation, we combined tissue engineering with clinically used keratin-18 quantification. Three doses of 10(-3) mol/l OxBu, dissolved in phosphate-buffered saline as well as loaded to SLN, were effective on reconstructed NMSC. Tumour response and apoptosis induction were evaluated by an increase in caspase-cleaved fragment of keratin-18, caspase-7 activation as well as by reduced expression of matrix metallopeptidase-2 and Ki-67. OxBu efficacy was superior to equimolar 5-fluorouracil solution, and thus the drug should be subjected to the next step in preclinical evaluation.
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Affiliation(s)
- C Ali-von Laue
- Institute for Pharmacy, Freie Universität Berlin, Berlin, Germany
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Charbaji N, Rosenthal P, Schäfer-Korting M, Küchler S. Cytoprotective effects of opioids on irradiated oral epithelial cells. Wound Repair Regen 2013; 21:883-9. [DOI: 10.1111/wrr.12115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 08/28/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Nada Charbaji
- Institute for Pharmacy, Pharmacology and Toxicology; Freie University Berlin; Berlin Germany
| | - Peter Rosenthal
- Clinic of Radiation Oncology and Radiotherapy; Charité - University Medicine; Berlin Germany
| | - Monika Schäfer-Korting
- Institute for Pharmacy, Pharmacology and Toxicology; Freie University Berlin; Berlin Germany
| | - Sarah Küchler
- Institute for Pharmacy, Pharmacology and Toxicology; Freie University Berlin; Berlin Germany
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43
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Shenoy VS, Gude RP, Murthy RSR. In vitro anticancer evaluation of 5-fluorouracil lipid nanoparticles using B16F10 melanoma cell lines. INTERNATIONAL NANO LETTERS 2013. [DOI: 10.1186/2228-5326-3-36] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Stein C, Küchler S. Targeting inflammation and wound healing by opioids. Trends Pharmacol Sci 2013; 34:303-12. [PMID: 23602130 DOI: 10.1016/j.tips.2013.03.006] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 03/18/2013] [Accepted: 03/20/2013] [Indexed: 11/27/2022]
Abstract
Opioid receptors are expressed on peripheral sensory nerve endings, cutaneous cells, and immune cells; and local application of opioids is used for the treatment of inflammatory pain in arthritis, burns, skin grafts, and chronic wounds. However, peripherally active opioids can also directly modulate the inflammatory process and wound healing. Here, we discuss the underlying mechanisms of opioid action and the conceivable therapeutic approaches for opioid treatment, as investigated in experimental and clinical studies. A large number of in vitro experiments and animal model investigations have produced evidence that peripherally active opioids can reduce plasma extravasation, vasodilation, proinflammatory neuropeptides, immune mediators, and tissue destruction. In contrast to currently available anti-inflammatory agents, opioids have not demonstrated organ toxicity, thus making them interesting candidates for drug development. Few clinical studies have tapped into this potential to date.
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Affiliation(s)
- Christoph Stein
- Department of Anesthesiology and Critical Care Medicine, Freie Universität Berlin, 12200 Berlin, Germany.
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Heilmann S, Küchler S, Wischke C, Lendlein A, Stein C, Schäfer-Korting M. A thermosensitive morphine-containing hydrogel for the treatment of large-scale skin wounds. Int J Pharm 2013; 444:96-102. [PMID: 23352858 DOI: 10.1016/j.ijpharm.2013.01.027] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 01/11/2013] [Accepted: 01/13/2013] [Indexed: 11/25/2022]
Abstract
PURPOSE Topically applied opioids are an option to induce efficient analgesia in patients with severe skin wounds. For ongoing pain reduction, the vehicle should provide sustained drug release in order to increase the intervals during the regular wound dressing changes. In addition, the formulation should not impair wound healing. Hydrogels provide a moist wound environment, which is known to facilitate the healing process. METHODS AND RESULTS Investigating poloxamer hydrogels as a carrier system for morphine in terms of release behavior and (per-)cutaneous absorption, poloxamer 407 25wt.% hydrogel sustained morphine release up to 24h. The drug release rate decreased with increasing concentration of the gel forming triblock copolymer. Poloxamer 407 25wt.% hydrogel retarded morphine uptake into reconstructed human skin and percutaneous drug absorption compared to a hydroxyethyl cellulose reference gel. CONCLUSIONS The results of our in vitro study indicate that the thermosensitive poloxamer 407 25wt.% hydrogel is an appropriate carrier system for the topical application of morphine with regard to sustained drug release and ongoing analgesia.
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Affiliation(s)
- Sarah Heilmann
- Institute for Pharmacy, Freie Universität Berlin, Berlin, Germany
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46
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Charbaji N, Schäfer-Korting M, Küchler S. Morphine stimulates cell migration of oral epithelial cells by delta-opioid receptor activation. PLoS One 2012; 7:e42616. [PMID: 22900034 PMCID: PMC3416801 DOI: 10.1371/journal.pone.0042616] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Accepted: 07/09/2012] [Indexed: 01/13/2023] Open
Abstract
Oral mucositis is one of the most common side effects of chemoradiation regimens and manifestation can be dose-limiting for the therapy, can impair the patient's nutritional condition and quality of life due to severe pain. The therapeutic options are limited; often only an alleviation of the symptoms such as pain reduction by using systemic opioids is possible. Stimulating opioid receptors on peripheral neurons and dermal tissue, potent analgesic effects are induced e.g. in skin grafted patients. Advantageous effects on the cell migration and, thus, on the wound healing process are described, too. In this study, we investigated whether opioid receptors are also expressed on oral epithelial cells and if morphine can modulate their cell migration behavior. The expression of the opioid receptors MOR, DOR and KOR on primary human oral epithelial cells was verified. Furthermore, a significantly accelerated cell migration was observed following incubation with morphine. The effect even slightly exceeded the cell migration stimulating effect of TGF-ß: After 14 h of morphine treatment about 86% of the wound area was closed, whereas TGF-ß application resulted in a closed wound area of 80%. With respect to morphine stimulated cell migration we demonstrate that DOR plays a key role and we show the involvement of the MAPK members Erk 1/2 and p38 using Western blot analysis.Further studies in more complex systems in vitro and in vivo are required. Nevertheless, these findings might open up a new therapeutic option for the treatment of oral mucositis.
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Affiliation(s)
- Nada Charbaji
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | | | - Sarah Küchler
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
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Stein C, Machelska H. Modulation of Peripheral Sensory Neurons by the Immune System: Implications for Pain Therapy. Pharmacol Rev 2011; 63:860-81. [DOI: 10.1124/pr.110.003145] [Citation(s) in RCA: 133] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Farley P. Should topical opioid analgesics be regarded as effective and safe when applied to chronic cutaneous lesions? J Pharm Pharmacol 2011; 63:747-56. [DOI: 10.1111/j.2042-7158.2011.01252.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Abstract
Objectives
The induction of analgesia for many chronic cutaneous lesions requires treatment with an opioid analgesic. In many patients suffering with these wounds such drugs are either contraindicated or shunned because of their association with death. There are now case reports involving over 100 patients with many different types of chronic superficial wounds, which suggest that the topical application of an opioid in a suitable gel leads to a significant reduction in the level of perceived pain.
Key findings
Some work has been undertaken to elucidate the mechanisms by which such a reduction is achieved. To date there have been no proven deleterious effects of such an analgesic system upon wound healing. Although morphine is not absorbed through the intact epidermis, an open wound provides no such barrier and for large wounds drug absorption can be problematic. However, for most chronic cutaneous lesions, where data has been gathered, the blood levels of the drug applied ranges from undetectable to below that required for a systemic effect.
Summary
If proven, the use of opioids in this way would provide adequate analgesia for a collection of wounds, which are difficult to treat in patients who are often vulnerable. Proof of this concept is now urgently required.
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Affiliation(s)
- Peter Farley
- Formerly Life and Health Sciences, Aston University, Birmingham, UK
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49
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Lipid-based colloidal systems (nanoparticles, microemulsions) for drug delivery to the skin: materials and end-product formulations. J Drug Deliv Sci Technol 2011. [DOI: 10.1016/s1773-2247(11)50005-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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50
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Scheel J, Hermann M. Integrated risk assessment of a hydroxyapatite-protein-composite for use in oral care products: a weight-of-evidence case study. Regul Toxicol Pharmacol 2010; 59:310-23. [PMID: 21112362 DOI: 10.1016/j.yrtph.2010.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 11/04/2010] [Accepted: 11/22/2010] [Indexed: 11/26/2022]
Abstract
Risk assessment of cosmetic ingredients represents a regulatory standard requirement in Europe and other regions. An integrated approach was designed to assess the safety of HPC, a particulate composite of hydroxyapatite and protein (gelatin) for use in oral care products, employing a weight-of-evidence assessment and considering specific physico-chemical properties and exposure conditions. An initial evaluation of the constituents suggested that their chemical nature does not represent a particular health hazard per se. Hydroxyapatite is the main component of teeth and bones in mammals; gelatin is used in food and assumed to be safe once a BSE/TSE risk has been excluded. In vitro screening tests were chosen to further evaluate the biocompatibility: Hen's egg test-chorioallantoic membrane (HET-CAM) to assess irritating effects towards mucous membranes; MTT cytotoxicity test with 3T3 fibroblasts; human corneal epithelial models to investigate inflammatory mediators and cytotoxicity; macrophage assays to measure cytotoxicity, inflammatory mediators and oxidative stress. Together with results from clinical studies, exposure estimates and analyses of kinetic properties, the presented information provides sound evidence to support the safe use of HPC. This is an example of a risk assessment for cosmetic use of small particles without the need for additional animal studies.
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Affiliation(s)
- Julia Scheel
- Henkel AG & Co. KGaA, Corporate Product Safety, Department of Human Safety Assessment, Düsseldorf, Germany.
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