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Nikzad S, Same S, Safiri S, Dolati S, Roushangar Zineh B, Meshgi S, Roshangar L, Şahin F. The effect of Wharton's jelly-derived stem cells seeded/boron-loaded acellular scaffolds on the healing of full-thickness burn wounds in the rat model. Biomed Mater 2024; 19:025042. [PMID: 38364284 DOI: 10.1088/1748-605x/ad2a3e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
Burn wounds are the most destructive and complicated type of skin or underlying soft tissue injury that are exacerbated by a prolonged inflammatory response. Several cell-based therapeutic systems through the culturing of potent stem cells on modified scaffolds have been developed to direct the burn healing challenges. In this context, a new regenerative platform based on boron (B) enriched-acellular sheep small intestine submucosa (AOSIS) scaffold was designed and used as a carrier for mesenchymal stem cells derived from Wharton's jelly (WJMSCs) aiming to promote the tissue healing in burn-induced rat models. hWJMSCs have been extracted from human extra-embryonic umbilical cord tissue. Thereafter, 96 third-degree burned Wistar male rats were divided into 4 groups. The animals that did not receive any treatment were considered as group A (control). Then, group B was treated just by AOSIS scaffold, group C was received cell-seeded AOSIS scaffold (hWJMSCs-AOSIS), and group D was covered by boron enriched-cell-AOSIS scaffold (B/hWJMSCs-AOSIS). Inflammatory factors, histopathological parameters, and the expression levels of epitheliogenic and angiogenic proteins were assessed on 5, 14 and 21 d post-wounding. Application of the B/hWJMSCs-AOSIS on full-thickness skin-burned wounds significantly reduced the volume of neutrophils and lymphocytes at day 21 post-burning, whilst the number of fibroblasts and blood vessels enhanced at this time. In addition, molecular and histological analysis of wounds over time further verified that the addition of boron promoted wound healing, with decreased inflammatory factors, stimulated vascularization, accelerated re-epithelialization, and enhanced expression levels of epitheliogenic genes. In addition, the boron incorporation amplified wound closure via increasing collagen deposition and fibroblast volume and activity. Therefore, this newly fabricated hWJMSCs/B-loaded scaffold can be used as a promising system to accelerate burn wound reconstruction through inflammatory regulation and angiogenesis stimulation.
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Affiliation(s)
- Sadeneh Nikzad
- Biology Department, Concordia University, Montreal, Canada
| | - Saeideh Same
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeid Safiri
- Neurosciences Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sanam Dolati
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Shahla Meshgi
- General Cardiologist, Tabriz Madani Heart Hospital, Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Roshangar
- Faculty of Medicine, Department of Anatomical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fikrettin Şahin
- Faculty of Engineering and Architecture, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
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Sterling J, Policastro C, Elyaguov J, Simhan J, Nikolavsky D. How and why tobacco use affects reconstructive surgical practice: a contemporary narrative review. Transl Androl Urol 2023; 12:112-127. [PMID: 36760864 PMCID: PMC9906109 DOI: 10.21037/tau-22-427] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 11/24/2022] [Indexed: 01/05/2023] Open
Abstract
Background and Objective The overall negative impact of tobacco use on an individual's health has been well documented but the literature on tobacco's impact on post-surgical outcomes, specifically the outcomes after urologic surgery, is not as clear cut. The aim of this narrative review is to provide urologists with the information needed to have a nuanced pre-operative counseling conversation with patients about tobacco use. Here we combine publications on the histologic and physiologic changes induced by nicotine and tobacco use with publications from the wider surgical literature on post-operative outcomes in tobacco users. Methods A literature search of PubMed, Google Scholar and Medline was performed using iterations of the following terms: tobacco, nicotine, changes, physiologic, histology, post-operative, and surgical. Non-English publications and abstracts were excluded. Inclusion required agreement from all authors and preference was given to human specimens over animal models for the basic science manuscripts and large database and meta-analyses over single institution experiences. Key Content and Findings Tobacco use results in measurable changes in nearly every organ system in the body. While smokers have increased wound complications, there is no evidence that reconstructive surgery using grafts or flaps fail more frequently in tobacco users. Smokers have an increased risk of respiratory complications following endotracheal intubation. Conclusions Surgeries should not be canceled due to a patient's inability to cease tobacco use. Urologists and patients should engage in joint decision making regarding the timing and pursuit of elective operations.
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Affiliation(s)
- Joshua Sterling
- SUNY Upstate Medical University, Department of Urology, Syracuse, NY, USA;,Yale School of Medicine, Department of Urology, New Haven, CT, USA
| | - Connor Policastro
- SUNY Upstate Medical University, Department of Urology, Syracuse, NY, USA
| | - Jason Elyaguov
- SUNY Upstate Medical University, Department of Urology, Syracuse, NY, USA
| | - Jay Simhan
- Fox Chase Cancer Center, Division of Urologic Oncology and Urology, Philadelphia, PA, USA
| | - Dmitriy Nikolavsky
- SUNY Upstate Medical University, Department of Urology, Syracuse, NY, USA
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AUTHOR REPLY. Urology 2022; 164:e310-e311. [PMID: 35710183 DOI: 10.1016/j.urology.2021.12.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Policastro CG, Sterling J, Porter B, Zaccarini DJ, Li G, Bratslavksy G, Nikolavsky D. Evaluation of the Effect of Tobacco Use on Buccal Mucosa Graft Histology. Urology 2022; 166:264-270. [DOI: 10.1016/j.urology.2022.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 12/01/2022]
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Nikolavsky D, Zhao LC. AUTHOR REPLY. Urology 2021; 156:278. [PMID: 34758566 DOI: 10.1016/j.urology.2021.05.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Dmitriy Nikolavsky
- Department of Urology, State University of New York Upstate Medical University, Syracuse NY 13210
| | - Lee C Zhao
- Department of Urology, NYU Langone Medical Center, NYU School of Medicine, New York, NY, 10016
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Wu N, Yan C, Chen J, Yao Q, Lu Y, Yu F, Sun H, Fu Y. Conjunctival reconstruction via enrichment of human conjunctival epithelial stem cells by p75 through the NGF-p75-SALL2 signaling axis. Stem Cells Transl Med 2020; 9:1448-1461. [PMID: 32602639 PMCID: PMC7581450 DOI: 10.1002/sctm.19-0449] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 05/03/2020] [Accepted: 06/04/2020] [Indexed: 12/12/2022] Open
Abstract
Severe conjunctival diseases can cause significant conjunctival scarring, which seriously limits eye movement and affects patients' vision. Conjunctival reconstruction remains challenging due to the lack of efficient methods for stem cells enrichment. This study indicated that p75 positive conjunctival epithelial cells (CjECs) were mainly located in the basal layer of human conjunctival epithelium and showed an immature differentiation state in vivo. The p75 strongly positive (p75++) CjECs enriched by immuno-magnetic beads exhibited high expression of stem cell markers and low expression of differentiated keratins. During continuous cell passage cultivation, p75++ CjECs showed the strongest proliferation potential and were able to reconstruct the conjunctiva in vivo with the most complete structure and function. Exogenous addition of NGF promoted the differentiation of CjECs by increasing nuclear localization of SALL2 in p75++ CjECs while proNGF played an opposite role. Altogether, p75++ CjECs present stem cell characteristics and exhibit the strongest proliferation potential so can be used as seed cells for conjunctival reconstruction, and NGF-p75-SALL2 signaling pathway was involved in regulating the differentiation of CjECs.
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Affiliation(s)
- Nianxuan Wu
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
| | - Chenxi Yan
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
| | - Junzhao Chen
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
| | - Qinke Yao
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
| | - Yang Lu
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
| | - Fei Yu
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
| | - Hao Sun
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
| | - Yao Fu
- Department of OphthalmologyShanghai Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiPeople's Republic of China
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Loss of oral mucosal stem cell markers in oral submucous fibrosis and their reactivation in malignant transformation. Int J Oral Sci 2020; 12:23. [PMID: 32826859 PMCID: PMC7442837 DOI: 10.1038/s41368-020-00090-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023] Open
Abstract
The integrity of the basal stem cell layer is critical for epithelial homoeostasis. In this paper, we review the expression of oral mucosal stem cell markers (OM-SCMs) in oral submucous fibrosis (OSF), oral potentially malignant disorders (OPMDs) and oral squamous cell carcinoma (OSCC) to understand the role of basal cells in potentiating cancer stem cell behaviour in OSF. While the loss of basal cell clonogenicity triggers epithelial atrophy in OSF, the transition of the epithelium from atrophic to hyperplastic and eventually neoplastic involves the reactivation of basal stemness. The vacillating expression patterns of OM-SCMs confirm the role of keratins 5, 14, 19, CD44, β1-integrin, p63, sex-determining region Y box (SOX2), octamer-binding transcription factor 4 (Oct-4), c-MYC, B-cell-specific Moloney murine leukaemia virus integration site 1 (Bmi-1) and aldehyde dehydrogenase 1 (ALDH1) in OSF, OPMDs and OSCC. The downregulation of OM-SCMs in the atrophic epithelium of OSF and their upregulation during malignant transformation are illustrated with relevant literature in this review.
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Trejo-Remigio DA, Jacinto-Alemán LF, Leyva-Huerta ER, Navarro-Bustos BR, Portilla-Robertson J. Ectodermal and ectomesenchymal marker expression in primary cell lines of complex and compound odontomas: a pilot study. ACTA ACUST UNITED AC 2019; 68:132-141. [PMID: 31014063 DOI: 10.23736/s0026-4970.19.04166-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Odontomas are odontogenic tumors with hamartoma features that are classified as compound or complex. Our objective was to characterize the proliferation of ectodermal and ectomesenchymal profile markers of primary cell cultures of complex and compound odontomas. METHODS Four samples of compound odontomas (OdCm) and three of complex odontomas (OdCx) were obtained from patients attending the Oral Pathology and Medicine Clinic of the Graduate Dental School, National Autonomous University of Mexico for primary culture generation. MTT, immunocytochemistry and RT-PCR assays of CD34, Sox2, Amel, Ambn, p21, EDAR, Msx1, Msx2, Pax9, RUNX2, BSP, OPN, Barx1 and GAPDH (control) were performed. Additionally, six paraffin-embedded odontomas were obtained for immunocytochemistry and RT-PCR validation assays. The mean and standard deviation were determined, and ANOVA and Kruskall-Wallis tests were performed. RESULTS Cultured compound odontoma exhibited higher proliferation, and an ectomesenchymal immunocytochemistry profile with predominant expression of Amel, BSP, Pax9, EDAR, Barx and Msx2; in complex cultured odontoma Sox2, CD34, RUNX2 and OPN predominated. Our statistical analysis showed a significant difference in PCR analysis (P<0.05) for OPN and CD34. Paraffin-embedded odontomas showed similar pattern with difference for NGFR and Sox2 for immunohistochemistry and EDAR, BARX1 and PAX9 for RT-PCR assays. CONCLUSIONS The results suggested heterogeneous behavior for both odontoma cell lines, because in compound odontomas predominant biomarkers are related to the enamel knot, late-stage odontogenesis and ectomesenchymal interactions; and in complex odontoma the significant expression of CD34 and OPN could be responsible for the difference behavior and mineralized amorphous structure.
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Affiliation(s)
- David A Trejo-Remigio
- Department of Oral Medicine and Pathology, Graduate Dental School, National Autonomous Mexico University, Mexico City, Mexico
| | - Luis F Jacinto-Alemán
- Laboratory of Cell Culture and Immunohistochemistry, Department of Oral Medicine and Pathology, Graduate Dental School, National Autonomous Mexico University, Mexico City, Mexico
| | - Elba R Leyva-Huerta
- Service of Oral Pathology Diagnosis, Department of Oral Medicine and Pathology, Graduate Dental School, National Autonomous Mexico University, Mexico City, Mexico
| | | | - Javier Portilla-Robertson
- Department of Oral Medicine and Pathology, Graduate Dental School, National Autonomous Mexico University, Mexico City, Mexico -
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Does migrative and proliferative capability of epithelial cells reflect cellular developmental competence? ACTA ACUST UNITED AC 2018. [DOI: 10.2478/acb-2018-0001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Abstract
Mammalian epithelial and epithelial-like cells are significantly involved in various processes associated with tissue development, differentiation and oncogenesis. Because of that, high number of research is focused on identifying cells that express stem-like or progenitor characteristics. Identifying such cells and recognizing their specific markers, would open new clinical opportunities in transplantology and oncology. There are several epithelia characterized by their ability to rapidly proliferate and/or differentiate. Due to their function or location they are subject to cyclic changes involving processes of apoptosis and regeneration. Literature presenting well-structured studies of these types of epithelia was analyzed in order to compare various results and establish if epithelial cells’ migrative and proliferative ability indicates their stemness potential. Endometrial, ovarian, oviductal and oral mucosal epithelia were analyzed with most of the publications delivering relatively unified results. The ability to rapidly proliferate/differentiate usually indicated the presence of some kind of stem/stem-like/progenitor cells. Most of the papers focused on pinpointing the exact location of these kind of cells, or analyzing specific markers that would be used for their future identification. There have also been substantial proportion of research that focused on discovering growth factors or intercellular signals that induced proliferation/differentiation in analyzed epithelia. Most of the research provided valuable insights into the modes of function and characteristics of the analyzed tissue, outlining the importance of such study for the possible clinical application of in vitro derived cell cultures.
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Novel Concept and Method of Endoscopic Urethral Stricture Treatment Using Liquid Buccal Mucosal Graft. J Urol 2016; 196:1788-1795. [DOI: 10.1016/j.juro.2016.05.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2016] [Indexed: 11/18/2022]
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