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Host antibacterial defense of 6-10 Gy γ-irradiated mice subjected to lentiviral vector-based Gas5 gene therapy. Gene Ther 2023; 30:172-179. [PMID: 33262512 DOI: 10.1038/s41434-020-00211-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/23/2020] [Accepted: 11/11/2020] [Indexed: 11/08/2022]
Abstract
Gut bacteria-associated sepsis is a serious concern in patients with gastrointestinal acute radiation syndrome (GIARS). In our previous studies, all mice exposed to 8 Gy of whole body γ-irradiation (8 Gy GIARS-mice) died by sepsis stemming from bacterial translocation. M1Mϕ located in the bacterial translocation site (i.e., the mesenteric lymph nodes, MLNs) have been characterized as major antibacterial effector cells. However, M2bMϕ, inhibitor cells for M1Mϕ polarization, predominated in the MLNs of these mice. The reduced expression of long noncoding RNA Gas5 was associated with M2bMϕ polarization. In this study, we tried to reduce the mortality rate of 8 Gy GIARS-mice through Gas5 gene transduction using lentivirus (Gas5 lentivirus). After Gas5 lentivirus injection, Gas5 RNA was overexpressed in MLN-F4/80+ cells of 8 Gy GIARS-mice, and these cells were identified as non-M2bMϕ. All of the 8 Gy GIARS-mice injected with Gas5 lentivirus survived 30 days or more after irradiation, and bacterial translocation and subsequent sepsis were shown to be minimal in these mice. These results indicate that the antibacterial resistance of 8 Gy GIASR-mice can be restored through the modulation of M2bMϕ located in the bacterial translocation site by Gas5 transduction.
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Prabhakar S, Lule S, DA Hora CC, Breakefield XO, Cheah PS. AAV9 transduction mediated by systemic delivery of vector via retro-orbital injection in newborn, neonatal and juvenile mice. Exp Anim 2021; 70:450-458. [PMID: 34039790 PMCID: PMC8614020 DOI: 10.1538/expanim.20-0186] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Adeno-associated virus (AAV)-based gene therapy is gaining popularity owing to its excellent safety profile and effective therapeutic outcomes in a number of diseases. Intravenous (IV)
injection of AAV into the tail vein, facial vein and retro-orbital (RO) venous sinus have all been useful strategies to infuse the viral vector systemically. However, tail vein injection is
technically challenging in juvenile mice, and injection at young ages (≤ postnatal day-(P)21) is essentially impossible. The temporal or facial vein is localized anterior to the ear bud and
is markedly visible in the first couple of days postnatally. However, this method is age-dependent and requires a dissecting microscope. Retro-orbital injection (ROI), on the other hand, is
suitable for all murine ages, including newborn and older mice, and is relatively less stressful to animals compared to tail vein injection. Although many reports have shown ROI as an
effective route of AAV delivery, herein we aim to highlight and summarize the methods and benefits of ROI. To capture the full spectrum of transduction efficiency mediated by ROI, we
transduced the editing-dependent reporter mice (Ai9 Cre reporter mice) with the AAV9 vector, which targets a wide range of peripheral tissues with exceptional brain tropism. We also provide
a comprehensive description of the ROI technique to facilitate viral vector administration without complications.
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Affiliation(s)
- Shilpa Prabhakar
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School.,Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital
| | - Sevda Lule
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School.,Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital
| | - Cintia Carla DA Hora
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School.,Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital
| | - Xandra O Breakefield
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School.,Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital
| | - Pike See Cheah
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School.,Center for Molecular Imaging Research, Department of Radiology, Massachusetts General Hospital.,Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
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Joung EJ, Kwon M, Gwon WG, Cao L, Lee SG, Utsuki T, Wakamatsu N, Kim JI, Kim HR. Meroterpenoid-Rich Fraction of the Ethanol Extract of Sargassum Serratifolium Suppresses Collagen-Induced Rheumatoid Arthritis in DBA/1J Mice Via Inhibition of Nuclear Factor κB Activation. Mol Nutr Food Res 2020; 64:e1900373. [PMID: 31900972 DOI: 10.1002/mnfr.201900373] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 12/10/2019] [Indexed: 12/20/2022]
Abstract
SCOPE Rheumatoid arthritis (RA) is an autoimmune disorder related to the inflammation of cartilage due to the infiltration of inflammatory cells. Sargassum serratifolium, a brown alga, possesses strong anti-inflammatory activities. METHODS AND RESULTS The effect of meroterpenoid-rich fraction from the ethanol extract of S. serratifolium (MES) on RA and its underlying mechanisms on the inhibition of RA using a collagen-induced arthritis (CIA) mouse model are examined. The results show that MES ameliorates paw swelling and reduces the arthritis score. MES considerably decreases the secretion of pro-inflammatory cytokines in the serum and joint tissue of mice. Histopathological analysis demonstrates that MES strongly inhibited bone damage and inflammatory cell intrusion in the joint tissue. The expression of inflammatory enzymes and adhesion molecules is significantly inhibited in the serum and joint tissue of MES-fed mice. In addition, MES downregulates the nuclear factor κB (NF-κB) signaling pathway by suppressing the phosphorylation of protein kinase B, c-Jun N-terminal kinase, and p38 mitogen-activated protein kinases. CONCLUSIONS MES supplementation remarkably reduces inflammatory response in CIA mouse model. These results indicate that MES can be used as a pharmaceutical agent against RA.
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Affiliation(s)
- Eun-Ji Joung
- Department of Food Science and Nutrition, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Misung Kwon
- Department of Food Science and Nutrition, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Wi-Gyeong Gwon
- Department of Food Science and Nutrition, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Lei Cao
- Department of Food Science and Nutrition, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Sang-Gil Lee
- Department of Food Science and Nutrition, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Tadanobu Utsuki
- Department of Pathobiological Science, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70802, USA
| | - Nobuko Wakamatsu
- Department of Pathobiological Science, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70802, USA
| | - Jae-Il Kim
- Department of Food Science and Nutrition, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
| | - Hyeung-Rak Kim
- Department of Food Science and Nutrition, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea
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Ito I, Asai A, Suzuki S, Kobayashi M, Suzuki F. M2b macrophage polarization accompanied with reduction of long noncoding RNA GAS5. Biochem Biophys Res Commun 2017; 493:170-175. [PMID: 28917839 DOI: 10.1016/j.bbrc.2017.09.053] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 09/12/2017] [Indexed: 01/19/2023]
Abstract
Macrophages (Mϕ) are highly plastic and change their functional phenotypes depending on microenvironmental signals. Recent studies have shown that microRNAs are involved in the polarization of Mϕ. In this study, we demonstrated that the phenotype of M2bMϕ [CCL1(+) IL-10(+) LIGHT(+)] switches to other phenotypes with interchangeability attained through the increased expression of growth arrest-specific 5 RNA (GAS5 RNA), a long noncoding RNA. GAS5 RNA has been described as a silencer of the CCL1 gene. Various phenotypes of Mϕ were prepared from bone marrow-derived Mϕ (BMDMϕ) after stimulation with IFNγ [M(IFNγ)/M1Mϕ], IL-4 [M(IL-4)/M2aMϕ], LPS and immobilized IgG [M(LPS + IC)/M2bMϕ], and IL-10 [M(IL-10)/M2cMϕ]. BMDMϕ cultured with medium [M(no)/quiescent Mϕ] were used as a control. As compared to Μ(no), M(IFNγ), M(IL-4) and M(IL-10), the reduced level of GAS5 RNA was shown in M(LPS + IC). CCL1 and LIGHT mRNAs (typical biomarkers of M2bMϕ) were not expressed by M(LPS + IC) transduced with a GAS5 gene using lentiviral vector. The reduction of GAS5 RNA in M(LPS + IC) was mediated by the activation of nonsense-mediated RNA decay (NMD) pathway. BMDMϕ overexpressed with GAS5 RNA after GAS5 gene transduction did not polarize to M2bMϕ even though they were stimulated with LPS and IC in combination. These results indicate that the reduction of GAS5 RNA influenced by the NMD pathway activation leads to the Mϕ polarization stimulated with LPS and IC in combination.
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Affiliation(s)
- Ichiaki Ito
- Department of Internal Medicine, The University of Texas Medical Branch, Galveston, TX, USA.
| | - Akira Asai
- The Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Osaka, Japan
| | - Sumihiro Suzuki
- Department of Biostatistics and Epidemiology, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Makiko Kobayashi
- Department of Internal Medicine, The University of Texas Medical Branch, Galveston, TX, USA
| | - Fujio Suzuki
- Department of Internal Medicine, The University of Texas Medical Branch, Galveston, TX, USA
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Effects of Remote Ischemic Preconditioning on Heme Oxygenase-1 Expression and Cutaneous Wound Repair. Int J Mol Sci 2017; 18:ijms18020438. [PMID: 28218659 PMCID: PMC5343972 DOI: 10.3390/ijms18020438] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/06/2017] [Accepted: 02/13/2017] [Indexed: 12/26/2022] Open
Abstract
Skin wounds may lead to scar formation and impaired functionality. Remote ischemic preconditioning (RIPC) can induce the anti-inflammatory enzyme heme oxygenase-1 (HO-1) and protect against tissue injury. We aim to improve cutaneous wound repair by RIPC treatment via induction of HO-1. RIPC was applied to HO-1-luc transgenic mice and HO-1 promoter activity and mRNA expression in skin and several other organs were determined in real-time. In parallel, RIPC was applied directly or 24h prior to excisional wounding in mice to investigate the early and late protective effects of RIPC on cutaneous wound repair, respectively. HO-1 promoter activity was significantly induced on the dorsal side and locally in the kidneys following RIPC treatment. Next, we investigated the origin of this RIPC-induced HO-1 promoter activity and demonstrated increased mRNA in the ligated muscle, heart and kidneys, but not in the skin. RIPC did not change HO-1 mRNA and protein levels in the wound 7 days after cutaneous injury. Both early and late RIPC did not accelerate wound closure nor affect collagen deposition. RIPC induces HO-1 expression in several organs, but not the skin, and did not improve excisional wound repair, suggesting that the skin is insensitive to RIPC-mediated protection.
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Loukov D, Naidoo A, Puchta A, Marin JLA, Bowdish DME. Tumor necrosis factor drives increased splenic monopoiesis in old mice. J Leukoc Biol 2016; 100:121-9. [DOI: 10.1189/jlb.3ma0915-433rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 03/12/2016] [Indexed: 12/24/2022] Open
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Puchta A, Naidoo A, Verschoor CP, Loukov D, Thevaranjan N, Mandur TS, Nguyen PS, Jordana M, Loeb M, Xing Z, Kobzik L, Larché MJ, Bowdish DME. TNF Drives Monocyte Dysfunction with Age and Results in Impaired Anti-pneumococcal Immunity. PLoS Pathog 2016; 12:e1005368. [PMID: 26766566 PMCID: PMC4713203 DOI: 10.1371/journal.ppat.1005368] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 12/06/2015] [Indexed: 12/24/2022] Open
Abstract
Monocyte phenotype and output changes with age, but why this occurs and how it impacts anti-bacterial immunity are not clear. We found that, in both humans and mice, circulating monocyte phenotype and function was altered with age due to increasing levels of TNF in the circulation that occur as part of the aging process. Ly6C+ monocytes from old (18–22 mo) mice and CD14+CD16+ intermediate/inflammatory monocytes from older adults also contributed to this “age-associated inflammation” as they produced more of the inflammatory cytokines IL6 and TNF in the steady state and when stimulated with bacterial products. Using an aged mouse model of pneumococcal colonization we found that chronic exposure to TNF with age altered the maturity of circulating monocytes, as measured by F4/80 expression, and this decrease in monocyte maturation was directly linked to susceptibility to infection. Ly6C+ monocytes from old mice had higher levels of CCR2 expression, which promoted premature egress from the bone marrow when challenged with Streptococcus pneumoniae. Although Ly6C+ monocyte recruitment and TNF levels in the blood and nasopharnyx were higher in old mice during S. pneumoniae colonization, bacterial clearance was impaired. Counterintuitively, elevated TNF and excessive monocyte recruitment in old mice contributed to impaired anti-pneumococcal immunity since bacterial clearance was improved upon pharmacological reduction of TNF or Ly6C+ monocytes, which were the major producers of TNF. Thus, with age TNF impairs inflammatory monocyte development, function and promotes premature egress, which contribute to systemic inflammation and is ultimately detrimental to anti-pneumococcal immunity. As we age, levels of inflammatory cytokines in the blood and tissues increase. Although this appears to be an inevitable part of aging, it ultimately contributes to declining health. Epidemiological studies indicate that older adults with higher than age-average levels of inflammatory cytokines are at increased risk of acquiring, becoming hospitalized with and dying of Streptococcus pneumoniae pneumonia but how age-associated inflammation increased susceptibility to was not entirely clear. We demonstrate that the increase in the inflammatory cytokine TNF that occurs with age cause monocytes to leave the bone marrow prematurely and these immature monocytes produce more inflammatory cytokines when stimulated with bacterial products, thus further increasing levels of inflammatory cytokines in the blood. Furthermore, although old mice have higher levels of these inflammatory monocytes arriving at the site of S. pneumoniae, they are not able to clear the bacteria. By pharmacologically or genetically removing the inflammatory cytokine TNF or reducing the number of inflammatory monocytes we were able to restore antibacterial immunity in aged mice. Thus we demonstrate that monocytes are both influenced by and contributors to age-associated inflammation and that chronic exposure to age-associated inflammation increases susceptibility to S. pneumoniae due to altering monocyte maturity and function.
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Affiliation(s)
- Alicja Puchta
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Avee Naidoo
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Chris P. Verschoor
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Dessi Loukov
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Netusha Thevaranjan
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Talveer S. Mandur
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
| | - Phuong-son Nguyen
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Manel Jordana
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
| | - Mark Loeb
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
- Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada
| | - Zhou Xing
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Lester Kobzik
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | | | - Dawn M. E. Bowdish
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
- * E-mail:
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Cremers NAJ, Suttorp M, Gerritsen MM, Wong RJ, van Run-van Breda C, van Dam GM, Brouwer KM, Kuijpers-Jagtman AM, Carels CEL, Lundvig DMS, Wagener FADTG. Mechanical Stress Changes the Complex Interplay Between HO-1, Inflammation and Fibrosis, During Excisional Wound Repair. Front Med (Lausanne) 2015; 2:86. [PMID: 26697429 PMCID: PMC4678194 DOI: 10.3389/fmed.2015.00086] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/24/2015] [Indexed: 01/11/2023] Open
Abstract
Mechanical stress following surgery or injury can promote pathological wound healing and fibrosis, and lead to functional loss and esthetic problems. Splinted excisional wounds can be used as a model for inducing mechanical stress. The cytoprotective enzyme heme oxygenase-1 (HO-1) is thought to orchestrate the defense against inflammatory and oxidative insults that drive fibrosis. Here, we investigated the activation of the HO-1 system in a splinted and non-splinted full-thickness excisional wound model using HO-1-luc transgenic mice. Effects of splinting on wound closure, HO-1 promoter activity, and markers of inflammation and fibrosis were assessed. After seven days, splinted wounds were more than three times larger than non-splinted wounds, demonstrating a delay in wound closure. HO-1 promoter activity rapidly decreased following removal of the (epi)dermis, but was induced in both splinted and non-splinted wounds during skin repair. Splinting induced more HO-1 gene expression in 7-day wounds; however, HO-1 protein expression remained lower in the epidermis, likely due to lower numbers of keratinocytes in the re-epithelialization tissue. Higher numbers of F4/80-positive macrophages, αSMA-positive myofibroblasts, and increased levels of the inflammatory genes IL-1β, TNF-α, and COX-2 were present in 7-day splinted wounds. Surprisingly, mRNA expression of newly formed collagen (type III) was lower in 7-day wounds after splinting, whereas, VEGF and MMP-9 were increased. In summary, these data demonstrate that splinting delays cutaneous wound closure and HO-1 protein induction. The pro-inflammatory environment following splinting may facilitate higher myofibroblast numbers and increase the risk of fibrosis and scar formation. Therefore, inducing HO-1 activity against mechanical stress-induced inflammation and fibrosis may be an interesting strategy to prevent negative effects of surgery on growth and function in patients with orofacial clefts or in patients with burns.
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Affiliation(s)
- Niels A J Cremers
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands ; Experimental Rheumatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Maarten Suttorp
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Marlous M Gerritsen
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Ronald J Wong
- Department of Pediatrics, Stanford University School of Medicine , Stanford, CA , USA
| | - Coby van Run-van Breda
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Gooitzen M van Dam
- Department of Surgery, University Medical Center Groningen , Groningen , Netherlands
| | - Katrien M Brouwer
- Department of Plastic, Reconstructive and Hand Surgery, VU University Medical Center, MOVE Research Institute Amsterdam , Amsterdam , Netherlands ; Association of Dutch Burn Centers , Beverwijk , Netherlands
| | - Anne Marie Kuijpers-Jagtman
- Department of Orthodontics and Craniofacial Biology, Cleft Palate Craniofacial Center, Radboud University Medical Center , Nijmegen , Netherlands
| | - Carine E L Carels
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Ditte M S Lundvig
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Frank A D T G Wagener
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
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