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Seo YJ, Lilliu MA, Abu Elghanam G, Nguyen TT, Liu Y, Lee JC, Presley JF, Zeitouni A, El-Hakim M, Tran SD. Cell culture of differentiated human salivary epithelial cells in a serum-free and scalable suspension system: The salivary functional units model. J Tissue Eng Regen Med 2019; 13:1559-1570. [PMID: 31151134 DOI: 10.1002/term.2908] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 12/15/2018] [Accepted: 02/13/2019] [Indexed: 01/10/2023]
Abstract
Saliva aids in digestion, lubrication, and protection of the oral cavity against dental caries and oropharyngeal infections. Reduced salivary secretion, below an adequate level to sustain normal oral functions, is unfortunately experienced by head and neck cancer patients treated with radiotherapy and by patients with Sjögren's syndrome. No disease-modifying therapies exist to date to address salivary gland hypofunction (xerostomia, dry mouth) because pharmacotherapies are limited by the need for residual secretory acinar cells, which are lost at the time of diagnosis, whereas novel platforms such as cell therapies are yet immature for clinical applications. Autologous salivary gland primary cells have clinical utility as personalized cell therapies, if they could be cultured to a therapeutically useful mass while maintaining their in vivo phenotype. Here, we devised a serum-free scalable suspension culture system that grows partially digested human salivary tissue filtrates composing of acinar and ductal cells attached to their native extracellular matrix components while retaining their 3D in vivo spatial organization; we have coined these salivary spheroids as salivary functional units (SFU). The proposed SFU culture system was sub-optimal, but we have found that the cells could still survive and grow into larger salivary spheroids through cell proliferation and aggregation for 5 to 10 days within the oxygen diffusion rates in vitro. In summary, by using a less disruptive cell isolation procedure as the starting point for primary cell culture of human salivary epithelial cells, we demonstrated that aggregates of cells remained proliferative and continued to express acinar and ductal cell-specific markers.
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Affiliation(s)
- You Jung Seo
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Maria Alberta Lilliu
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada.,Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, Cagliari, Italy
| | - Ghada Abu Elghanam
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada.,Department of Anatomy and Histology, Faculty of Medicine, University of Jordan, Amman, Jordan
| | - Thomas T Nguyen
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada.,Department of periodontics, School of dentistry, University of Montreal, Montreal, QC, Canada
| | - Younan Liu
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Jin Choon Lee
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada.,Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine, Pusan, South Korea
| | - John F Presley
- Department of Anatomy and Cell Biology, McGill University, Montreal, QC, Canada
| | - Anthony Zeitouni
- Department of Otolaryngology-Head and Neck Surgery, McGill University, Montreal, QC, Canada
| | - Michel El-Hakim
- Department of Oral and Maxillofacial Surgery, McGill University, Montreal, QC, Canada
| | - Simon D Tran
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada
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Błochowiak K, Olewicz-Gawlik A, Polańska A, Nowak-Gabryel M, Kocięcki J, Witmanowski H, Sokalski J. Oral mucosal manifestations in primary and secondary Sjögren syndrome and dry mouth syndrome. Postepy Dermatol Alergol 2016; 33:23-7. [PMID: 26985175 PMCID: PMC4793060 DOI: 10.5114/pdia.2016.57764] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 01/04/2015] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION One of the most important symptoms of Sjögren syndrome is xerostomia. The oral cavity deprived of saliva and its natural lubricative, protective and antibacterial properties is prone to a number of unfavourable consequences. AIM To present the most important lesions on the oral mucosa in primary and secondary Sjögren syndrome and in dry mouth syndrome. MATERIAL AND METHODS The study group comprised 55 patients including 52 women and 3 men aged 20-72 years (average: 28.25 years). RESULTS Basing on the accepted criteria, primary Sjögren syndrome was diagnosed in 22 (40%) patients, secondary Sjögren syndrome in 18 (32.7%) patients, and dry mouth syndrome in 15 (27.27%) patients. The physical examination and the examination of the mouth were performed and history was elicited from every patient. CONCLUSIONS The most common pathologies appearing on the oral mucosa in primary and secondary Sjögren syndrome are angular cheilitis, cheilitis, increased lip dryness as well as non-specific ulcerations, aphthae and aphthoid conditions.
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Affiliation(s)
- Katarzyna Błochowiak
- Department of Oral Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - Anna Olewicz-Gawlik
- Department of Rheumatology and Clinical Immunology, Poznan University of Medical Sciences, Poznan, Poland
| | - Adriana Polańska
- Department of Dermatology, Poznan University of Medical Sciences, Poznan, Poland
| | | | - Jarosław Kocięcki
- Department of Ophthalmology, Poznan University of Medical Sciences, Poznan, Poland
| | - Henryk Witmanowski
- Department of Physiology, Poznan University of Medical Sciences, Poznan, Poland
- Department of Plastic, Aesthetic and Reconstructive Surgery, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Jerzy Sokalski
- Department of Oral Surgery, Poznan University of Medical Sciences, Poznan, Poland
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