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Lin Y, Jin L, Yang Y. Periodontal ligament cells from patients with treated stable periodontitis: Characterization and osteogenic differentiation potential. J Periodontal Res 2023; 58:237-246. [PMID: 36567428 DOI: 10.1111/jre.13085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 11/22/2022] [Accepted: 12/12/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontal ligament progenitor cells (PDL cells) isolated from patients with inflammatory periodontitis have impaired regenerative capacity, but it is unknown whether this capacity can be recovered upon treatment and stabilization of the periodontal condition. The study aimed to investigate the expression of surface markers and the proliferation and osteogenic potential of PDL cells isolated from patients with treated stable periodontitis (S-PDL cells), periodontally healthy individuals (H-PDL cells), and patients with inflammatory periodontitis (I-PDL cells). METHODS H-PDL, I-PDL, and S-PDL cells were isolated from the extracted teeth of individuals who (1) were periodontally healthy, (2) had inflammatory periodontitis, and (3) had treated stable periodontitis, respectively. The expression levels of surface markers and the proliferative and osteogenic capacities of the PDL cells were assessed. RESULTS PDL cells derived from all three sources exhibited mesenchymal stem cell (MSC) characteristics. They were positive for MSC-related markers and negative for a hematopoiesis-related marker. However, S-PDL cells had higher proliferation rates, higher expression levels of osteogenic markers, higher alkaline phosphatase activity, and more calcium nodules than I-PDL cells. But all of these parameters remained lower in S-PDL cells than in H-PDL cells. CONCLUSIONS S-PDL cells proliferated faster and had greater osteogenic potential than I-PDL cells, although these values remained lower than those in H-PDL cells.
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Affiliation(s)
- Yifan Lin
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Lijian Jin
- Periodontology and Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Yanqi Yang
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
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2
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Hu J, Song J, Chen Z, Yang J, Shi Q, Jin F, Pang Q, Chang X, Tian Y, Luo Y, Chen L. Reverse causal relationship between periodontitis and shortened telomere length: Bidirectional two-sample Mendelian random analysis. Front Immunol 2022; 13:1057602. [PMID: 36601105 PMCID: PMC9806346 DOI: 10.3389/fimmu.2022.1057602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Background Observational studies have demonstrated a link between shortened telomere lengths(TL) and chronic periodontitis. However, whether the shortened TL is the cause or the result of periodontitis is unknown.Therefore, our objective was to investigate a bidirectional causal relationship between periodontitis and TL using a two-sample Mendel randomized (MR) study. Methods A two-sample bidirectional MR analysis using publicly available genome-wide association study (GWAS) data was used. As the primary analysis, inverse variance weighting (IVW) was employed. To identify pleiotropy, we used leave-one-out analysis, MR-Egger, Weighted median, Simple mode, Weighted mode, and MR pleiotropy residual sum and outlier (MR-PRESSO). Results In reverse MR results, a genetic prediction of short TL was causally associated with a higher risk of periodontitis (IVW: odds ratio [OR]: 1.0601, 95% confidence interval [CI]: 1.0213 to 1.1002; P =0.0021) and other complementary MR methods. In the forward MR analysis, periodontitis was shown to have no significant effect on TL (IVW: p = 0.7242), with consistent results for the remaining complementary MR. No pleiotropy was detected in sensitivity analysis (all P>0.05). Conclusion Our MR studies showed a reverse causal relationship, with shorten TL being linked to a higher risk of periodontitis, rather than periodontitis shorten that TL. Future research is needed to investigate the relationship between cell senescence and the disease.
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Affiliation(s)
- Jiaxin Hu
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jukun Song
- The Affiliated Stomatological Hospital & Stomatology of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Zhu Chen
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Jing Yang
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Qianhui Shi
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Fuqian Jin
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qiyuan Pang
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China
| | - Xingtao Chang
- School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yuan Tian
- Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Yi Luo
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China,*Correspondence: Yi Luo, ; Liming Chen,
| | - Liming Chen
- Guiyang Hospital of Stomatology, Stomatology Hospital of Guizhou University, Guiyang, Guizhou, China,School of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China,*Correspondence: Yi Luo, ; Liming Chen,
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3
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Mavinga M, Palmier M, Rémy M, Jeannière C, Lenoir S, Rey S, Saint-Marc M, Alonso F, Génot E, Thébaud N, Chevret E, Mournetas V, Rousseau B, Boiziau C, Boeuf H. The Journey of SCAPs (Stem Cells from Apical Papilla), from Their Native Tissue to Grafting: Impact of Oxygen Concentration. Cells 2022; 11:cells11244098. [PMID: 36552862 PMCID: PMC9776846 DOI: 10.3390/cells11244098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/30/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Tissue engineering strategies aim at characterizing and at optimizing the cellular component that is combined with biomaterials, for improved tissue regeneration. Here, we present the immunoMap of apical papilla, the native tissue from which SCAPs are derived. We characterized stem cell niches that correspond to a minority population of cells expressing Mesenchymal stromal/Stem Cell (CD90, CD105, CD146) and stemness (SSEA4 and CD49f) markers as well as endothelial cell markers (VWF, CD31). Based on the colocalization of TKS5 and cortactin markers, we detected migration-associated organelles, podosomes-like structures, in specific regions and, for the first time, in association with stem cell niches in normal tissue. From six healthy teenager volunteers, each with two teeth, we derived twelve cell banks, isolated and amplified under 21 or 3% O2. We confirmed a proliferative advantage of all banks when cultured under 3% versus 21% O2. Interestingly, telomerase activity was similar to that of the highly proliferative hiPSC cell line, but unrelated to O2 concentration. Finally, SCAPs embedded in a thixotropic hydrogel and implanted subcutaneously in immunodeficient mice were protected from cell death with a slightly greater advantage for cells preconditioned at 3% O2.
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Affiliation(s)
- Marine Mavinga
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
| | | | - Murielle Rémy
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
| | | | - Solène Lenoir
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
| | - Sylvie Rey
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
| | | | - Florian Alonso
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
| | - Elisabeth Génot
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
| | - Noélie Thébaud
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
| | - Edith Chevret
- Univ. Bordeaux, INSERM, BRIC, U1312, F-33000 Bordeaux, France
| | | | - Benoit Rousseau
- Univ. Bordeaux, Animal Facility A2, Service Commun des Animaleries, F-33000 Bordeaux, France
| | | | - Helene Boeuf
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France
- Correspondence:
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Selle M, Koch JD, Ongsiek A, Ulbrich L, Ye W, Jiang Z, Krettek C, Neunaber C, Noack S. Influence of age on stem cells depends on the sex of the bone marrow donor. J Cell Mol Med 2022; 26:1594-1605. [PMID: 35088539 PMCID: PMC8899192 DOI: 10.1111/jcmm.17201] [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: 09/06/2021] [Revised: 12/05/2021] [Accepted: 01/05/2022] [Indexed: 11/28/2022] Open
Abstract
Ageing is often accompanied by an increase in bone marrow fat together with reduced bone volume and diseases of the bone such as osteoporosis. As mesenchymal stem cells (MSCs) are capable of forming bone, cartilage and fat tissue, studying these cells is of great importance to understand the underlying mechanisms behind age‐related bone diseases. However, inter‐donor variation has been found when handling MSCs. Therefore, the aim of this study was to investigate the effects of donor age and sex by comparing in vitro characteristics of human bone marrow‐derived MSCs (hBMSCs) from a large donor cohort (n = 175). For this, hBMSCs were analysed for CFU‐F capacity, proliferation, differentiation capacity and surface antigen expression under standardized culture conditions. The results demonstrated a significantly reduced CFU‐F number for hBMSCs of female compared to male donors. Furthermore, there was a significant decrease in the proliferation rate, adipogenic differentiation potential and cell surface expression of SSEA‐4, CD146 and CD274 of hBMSCs with an increase in donor age. Interestingly, all these findings were exclusive to hBMSCs from female donors. Further research should focus on postmenopausal‐related effects on hBMSCs, as the results imply a functional loss and immunophenotypic change of hBMSCs particularly in aged women.
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Affiliation(s)
- Michael Selle
- Trauma Department, Hannover Medical School, Hannover, Germany
| | | | - Alina Ongsiek
- Trauma Department, Hannover Medical School, Hannover, Germany
| | - Linnea Ulbrich
- Trauma Department, Hannover Medical School, Hannover, Germany
| | - Weikang Ye
- Trauma Department, Hannover Medical School, Hannover, Germany
| | - Zhida Jiang
- Trauma Department, Hannover Medical School, Hannover, Germany
| | | | | | - Sandra Noack
- Trauma Department, Hannover Medical School, Hannover, Germany
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Shetty A, Krishna M, Manjappa A, Shetty V, Hegde M, Kumar B. Comparative characterization and analysis of telomere length in stem cells derived from deciduous and permanent teeth. Dent Res J (Isfahan) 2022. [DOI: 10.4103/1735-3327.353833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Tan S, Yao Y, Yang Q, Yuan XL, Cen LP, Ng TK. Diversified Treatment Options of Adult Stem Cells for Optic Neuropathies. Cell Transplant 2022; 31. [PMID: 36165292 PMCID: PMC9523835 DOI: 10.1177/09636897221123512] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/28/2022] [Accepted: 08/16/2022] [Indexed: 02/05/2023] Open
Abstract
Optic neuropathies refer to a group of ocular disorders with abnormalities or dysfunction of the optic nerve, sharing a common pathophysiology of retinal ganglion cell (RGC) death and axonal loss. RGCs, as the retinal neurons in the central nervous system, show limited capacity in regeneration or recovery upon diseases or after injuries. Critically, there is still no effective clinical treatment to cure most types of optic neuropathies. Recently, stem cell therapy was proposed as a potential treatment strategy for optic neuropathies. Adult stem cells, including mesenchymal stem cells and hematopoietic stem cells, have been applied in clinical trials based on their neuroprotective properties. In this article, the applications of adult stem cells on different types of optic neuropathies and the related mechanisms will be reviewed. Research updates on the strategies to enhance the neuroprotective effects of human adult stem cells will be summarized. This review article aims to enlighten the research scientists on the diversified functions of adult stem cells and consideration of adult stem cells as a potential treatment for optic neuropathies in future clinical practices.
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Affiliation(s)
- Shaoying Tan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong
- Research Centre for SHARP Vision, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Yao Yao
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Shantou University Medical College, Shantou, China
| | - Qichen Yang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Shantou University Medical College, Shantou, China
| | - Ling-Ping Cen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Shantou University Medical College, Shantou, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
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Siadat SM, Zamboulis DE, Thorpe CT, Ruberti JW, Connizzo BK. Tendon Extracellular Matrix Assembly, Maintenance and Dysregulation Throughout Life. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1348:45-103. [PMID: 34807415 DOI: 10.1007/978-3-030-80614-9_3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In his Lissner Award medal lecture in 2000, Stephen Cowin asked the question: "How is a tissue built?" It is not a new question, but it remains as relevant today as it did when it was asked 20 years ago. In fact, research on the organization and development of tissue structure has been a primary focus of tendon and ligament research for over two centuries. The tendon extracellular matrix (ECM) is critical to overall tissue function; it gives the tissue its unique mechanical properties, exhibiting complex non-linear responses, viscoelasticity and flow mechanisms, excellent energy storage and fatigue resistance. This matrix also creates a unique microenvironment for resident cells, allowing cells to maintain their phenotype and translate mechanical and chemical signals into biological responses. Importantly, this architecture is constantly remodeled by local cell populations in response to changing biochemical (systemic and local disease or injury) and mechanical (exercise, disuse, and overuse) stimuli. Here, we review the current understanding of matrix remodeling throughout life, focusing on formation and assembly during the postnatal period, maintenance and homeostasis during adulthood, and changes to homeostasis in natural aging. We also discuss advances in model systems and novel tools for studying collagen and non-collagenous matrix remodeling throughout life, and finally conclude by identifying key questions that have yet to be answered.
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Affiliation(s)
| | - Danae E Zamboulis
- Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK
| | - Chavaunne T Thorpe
- Comparative Biomedical Sciences, The Royal Veterinary College, University of London, London, UK
| | - Jeffrey W Ruberti
- Department of Bioengineering, Northeastern University, Boston, MA, USA
| | - Brianne K Connizzo
- Department of Biomedical Engineering, Boston University, Boston, MA, USA.
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8
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Maeda H. Mass acquisition of human periodontal ligament stem cells. World J Stem Cells 2020; 12:1023-1031. [PMID: 33033562 PMCID: PMC7524700 DOI: 10.4252/wjsc.v12.i9.1023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/08/2020] [Accepted: 08/01/2020] [Indexed: 02/06/2023] Open
Abstract
The periodontal ligament (PDL) is an essential fibrous tissue for tooth retention in the alveolar bone socket. PDL tissue further functions to cushion occlusal force, maintain alveolar bone height, allow orthodontic tooth movement, and connect tooth roots with bone. Severe periodontitis, deep caries, and trauma cause irreversible damage to this tissue, eventually leading to tooth loss through the destruction of tooth retention. Many patients suffer from these diseases worldwide, and its prevalence increases with age. To address this issue, regenerative medicine for damaged PDL tissue as well as the surrounding tissues has been extensively investigated regarding the potential and effectiveness of stem cells, scaffolds, and cytokines as well as their combined applications. In particular, PDL stem cells (PDLSCs) have been well studied. In this review, I discuss comprehensive studies on PDLSCs performed in vivo and contemporary reports focusing on the acquisition of large numbers of PDLSCs for therapeutic applications because of the very small number of PDLSCs available in vivo.
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Affiliation(s)
- Hidefumi Maeda
- Department of Endodontology and Operative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka 8128582, Japan
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