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Matheus HR, Hadad H, Monteiro JLGC, Takusagawa T, Zhang F, Ye Q, He Y, Rosales IA, Jounaidi Y, Randolph MA, Guastaldi FPS. Photo-crosslinked GelMA loaded with dental pulp stem cells and VEGF to repair critical-sized soft tissue defects in rats. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101373. [PMID: 36584767 DOI: 10.1016/j.jormas.2022.101373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Tissue engineering of skin and mucosa is essential for the esthetic and functional reconstruction of individuals disfigured by trauma, resection surgery, or severe burns while overcoming the limited amount of autograft and donor site morbidity. PURPOSE We aimed to determine whether a combination of Gelatin-methacryloyl (GelMA) hydrogel scaffold alone or loaded with either dental pulp stem cells (DPSCs) and/or vascular endothelial growth factor (VEGF) could improve skin wound healing in rats. MATERIALS AND METHODS Four 10 mm full-thickness skin defects were created on the dorsum of 15 Sprague-Dawley rats. The wounds were treated with GelMA alone, GelMA+DPSCs, or GelMA+DPSCs+VEGF. Unprotected wounds were used as controls. Animals were euthanized at 1-, 2-, and 4 weeks post-surgery, and the healing wounds were harvested for clinical, histological, and RT-PCR analysis. RESULTS No signs of clinical inflammation were observed among all groups. Few and sparse mononuclear inflammatory cells were observed in GelMA+DPSCs and GelMA+DPSCs+VEGF groups at 2 weeks, with complete epithelialization of the wounds. At 4 weeks, the epidermis in GelMA+DPSCs and GelMA+DPSCs+VEGF groups was indistinguishable from the empty defect and GelMA groups. The decrease in cellularity and increase in density of collagen fibers were observed over time in both GelMA+DPSCs and GelMA+DPSCs+VEGF groups but were more evident in the GelMA+DPSCs+VEGF group. The GelMA+DPSCs+VEGF group showed a higher expression of the KER 10 gene at all time points compared with the other groups. Expression of Col1 A1 and TGFβ-1 were not statistically different over time neither among the groups. CONCLUSION GelMA scaffolds loaded with DPSCs, and VEGF accelerated the re-epithelialization of skin wounds.
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Affiliation(s)
- Henrique R Matheus
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America; Department of Diagnosis and Surgery, Periodontics Division, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - Henrique Hadad
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America; Department of Diagnosis and Surgery, Oral & Maxillofacial Surgery Division, São Paulo State University (UNESP), School of Dentistry, Araçatuba, SP, Brazil
| | - Joao L G C Monteiro
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America
| | - Toru Takusagawa
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America
| | - Fugui Zhang
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America
| | - Qingsong Ye
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America
| | - Yan He
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America
| | - Ivy A Rosales
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Youssef Jounaidi
- Department of Anaesthesia, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Mark A Randolph
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Fernando P S Guastaldi
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America.
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Lombardo G, Melzi G, Indino S, Piazza S, Sangiovanni E, Baruffaldi Preis F, Marabini L, Donetti E. Keratin 17 as a marker of UVB-induced stress in human epidermis and modulation by Vitis vinifera extract. Cells Tissues Organs 2021; 211:611-627. [PMID: 34644704 DOI: 10.1159/000520038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/04/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Giulia Lombardo
- Department of Biomedical Science for Health, Università degli Studi di Milano, Milan, Italy
| | - Gloria Melzi
- Department of Pharmacological and Biomolecular Sciences, Milan, Italy
| | - Serena Indino
- Department of Biomedical Science for Health, Università degli Studi di Milano, Milan, Italy
| | - Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences, Milan, Italy
| | | | | | - Laura Marabini
- Department of Pharmacological and Biomolecular Sciences, Milan, Italy
| | - Elena Donetti
- Department of Biomedical Science for Health, Università degli Studi di Milano, Milan, Italy
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Laskin JD, Wahler G, Croutch CR, Sinko PJ, Laskin DL, Heck DE, Joseph LB. Skin remodeling and wound healing in the Gottingen minipig following exposure to sulfur mustard. Exp Mol Pathol 2020; 115:104470. [PMID: 32445752 DOI: 10.1016/j.yexmp.2020.104470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/21/2020] [Accepted: 05/17/2020] [Indexed: 12/24/2022]
Abstract
Sulfur mustard (SM), a dermal vesicant that has been used in chemical warfare, causes inflammation, edema and epidermal erosions depending on the dose and time following exposure. Herein, a minipig model was used to characterize wound healing following dermal exposure to SM. Saturated SM vapor caps were placed on the dorsal flanks of 3-month-old male Gottingen minipigs for 30 min. After 48 h the control and SM wounded sites were debrided daily for 7 days with wet to wet saline gauze soaks. Animals were then euthanized, and full thickness skin biopsies prepared for histology and immunohistochemistry. Control skin contained a well differentiated epidermis with a prominent stratum corneum. A well-developed eschar covered the skin of SM treated animals, however, the epidermis beneath the eschar displayed significant wound healing with a hyperplastic epidermis. Stratum corneum shedding and a multilayered basal epithelium consisting of cuboidal and columnar cells were also evident in the neoepidermis. Nuclear expression of proliferating cell nuclear antigen (PCNA) was contiguous in cells along the basal epidermal layer of control and SM exposed skin; SM caused a significant increase in PCNA expression in basal and suprabasal cells. SM exposure was also associated with marked changes in expression of markers of wound healing including increases in keratin 10, keratin 17 and loricrin and decreases in E-cadherin. Trichrome staining of control skin showed a well-developed collagen network with no delineation between the papillary and reticular dermis. Conversely, a major delineation was observed in SM-exposed skin including a web-like papillary dermis composed of filamentous extracellular matrix, and compact collagen fibrils in the lower reticular dermis. Although the dermis below the wound site was disrupted, there was substantive epidermal regeneration following SM-induced injury. Further studies analyzing the wound healing process in minipig skin will be important to provide a model to evaluate potential vesicant countermeasures.
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Affiliation(s)
- Jeffrey D Laskin
- Department of Environmental and Occupational Health, Rutgers University School of Public Health, Piscataway, NJ 08854, United States of America
| | - Gabriella Wahler
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States of America
| | | | - Patrick J Sinko
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States of America
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States of America
| | - Diane E Heck
- Department of Environmental Health Science, New York Medical College, Valhalla, NY 10595, United States of America
| | - Laurie B Joseph
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States of America.
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Lee S, Kim CM, Lee JH, Lee K, Cho KS, Kim ES. Effect of hemp fiber on UVB-induced epidermal cell proliferation and PCNA expression. Genes Genomics 2017. [DOI: 10.1007/s13258-017-0533-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jeon BJ, Kim DW, Kim MS, Park SH, Dhong ES, Yoon ES, Lee BI, Hwang NH. Protective effects of adipose-derived stem cells against UVB-induced skin pigmentation. J Plast Surg Hand Surg 2016; 50:336-342. [DOI: 10.1080/2000656x.2016.1175358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Koehler MJ, Kellner K, Hipler UC, Kaatz M. Acute UVB-induced epidermal changes assessed by multiphoton laser tomography. Skin Res Technol 2014; 21:137-43. [PMID: 25066913 DOI: 10.1111/srt.12168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2014] [Indexed: 01/20/2023]
Abstract
BACKGROUND In vivo multiphoton tomography (MPT) of human skin has become a valuable tool for non-invasive examination of morphological and biophysical skin properties and their alterations. So far, skin changes after UVB irradiation were mainly evaluated clinically and histologically. The present study aimed at non-invasive imaging of histological changes during acute UVB irradiation by multiphoton laser tomography. METHODS In 10 volunteers, five areas were irradiated once with an erythematous UVB dose. Multiphoton measurements were performed four times, i.e. before irradiation (baseline), and 24, 48 and 72 h after irradiation, respectively. The data were evaluated for changes of epidermal pleomorphy, spongiosis, pigmentation and thickness. RESULTS The four parameters were altered significantly by acute UVB irradiation, i.e. epidermal pleomorphy, spongiosis, pigmentation and thickness increased within 72 h after irradiation. CONCLUSION Thus, the study has shown that typical epidermal changes induced by acute UVB irradiation can be evaluated by MPT.
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Affiliation(s)
- M J Koehler
- Department of Dermatology, SRH Waldklinikum Gera, Gera, Germany; Department of Dermatology, University Hospital Jena, Jena, Germany
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Tochio T, Tanaka H, Nakata S. Glucose transporter member 1 is involved in UVB-induced epidermal hyperplasia by enhancing proliferation in epidermal keratinocytes. Int J Dermatol 2013; 52:300-8. [DOI: 10.1111/j.1365-4632.2011.05299.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bezerra SMDFMDC, Sotto MN, Orii NM, Alves C, Duarte AJDS. Effects of long-term chronic exposure to sun radiation in immunological system of commercial fishermen in Recife, Brazil. An Bras Dermatol 2011; 86:222-33. [PMID: 21603804 DOI: 10.1590/s0365-05962011000200004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Accepted: 07/01/2010] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Among the various occupations which necessarily require long-term and chronic sun exposure is that of a fisherman. However, clinical experience in dermatology earned over several years of medical practice does not seem to confirm this hypothesis. OBJECTIVE To evaluate clinical, histological and immunological effects of long-term and chronic exposure to ultraviolet radiation in fishermen. METHODS A prospective, cross-sectional and observational study characterized skin lesions, immunological markers and histological alterations in fishermen, as well as lymphocyte subpopulations compared to a control group. Mann-Whitney, Fisher's and Wilcoxon statistical tests were used at a significance level of 0.05. RESULTS There were significant differences between the exposed group and the group protected due to elastosis (p = 0.03), ectasia of dermal vessels (p = 0.012) and number of cells in the epidermal layers between cones (p = 0.029). Most common among fishermen were CD45RO, CD68 + and mastocytes in the skin (p = 0.040, p <0.001, p = 0.001) and CD3CD8CD45RO in the blood (p = 0.016). CONCLUSION The alterations suggest that long-term and chronic sun exposure promotes tolerance to ultraviolet radiation, which protects against immunosuppression.
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Photoprotection by honeybush extracts, hesperidin and mangiferin against UVB-induced skin damage in SKH-1 mice. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2011; 103:126-39. [DOI: 10.1016/j.jphotobiol.2011.02.020] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 02/08/2011] [Accepted: 02/28/2011] [Indexed: 11/22/2022]
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Gambichler T, Huyn J, Tomi NS, Moussa G, Moll C, Sommer A, Altmeyer P, Hoffmann K. A Comparative Pilot Study on Ultraviolet-induced Skin Changes Assessed by Noninvasive Imaging Techniques in Vivo. Photochem Photobiol 2006; 82:1103-7. [PMID: 16555922 DOI: 10.1562/2005-12-21-ra-757] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The effects of acute and chronic ultraviolet (UV) on the morphology of human skin have been extensively studied ex vivo by means of histological investigations. However, innovative skin imaging techniques enable visualization of micromorphological structures in vivo. We aimed to perform a correlation study evaluating in vivo dose and time dependent skin changes following solar-simulated irradiation using noninvasive techniques such as optical coherence tomography (OCT) and confocal laser scanning microscopy (CLSM). The forearms of 10 healthy subjects were exposed to 1 minimal erythema dose (MED) and 3 MED of solar-simulated radiation. Noninvasive measurements were performed before and 24 h and 72 h after UV exposures. We demonstrate definite OCT and CLSM findings obtained from UV-exposed skin, including an increase in epidermal thickness (hyperproliferation, acanthosis), a reduction in dermal reflectivity (dermal edema), an increase in brightness of the basal layer (pigmentation), and an increase in vessel diameter within the dermal papillae (vasodilatation). A moderate to strong linear association between the methods employed was observed. In conclusion, noninvasive high-resolution imaging techniques such as OCT and CLSM may be promising tools for photobiological studies aimed at assessing photoadaptive and/or phototoxic processes in vivo. However, larger studies are needed to demonstrate the applicability of the findings presented in this pilot study.
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