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Soh S, Han S, Ka HI, Mun SH, Kim W, Oh G, Yang Y. Adiponectin affects the migration ability of bone marrow-derived mesenchymal stem cells via the regulation of hypoxia inducible factor 1α. Cell Commun Signal 2023; 21:158. [PMID: 37370133 PMCID: PMC10294307 DOI: 10.1186/s12964-023-01143-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/22/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Bone marrow (BM) is progressively filled with adipocytes during aging process. Thus, BM adipocytes-derived adiponectin (APN) affects the function of bone marrow-derived mesenchymal stem cells (BMSCs). However, little is known about the effect of APN on migration ability of BMSCs cultured under hypoxic conditions, which is similar to the BM microenvironment. RESULTS We found that the population and migration ability of BMSCs from APN KO mice was higher than that of WT mice due to increased stability of hypoxia inducible factor 1α (HIF1α). Stem cell factor (SCF)-activated STAT3 stimulated the induction of HIF1α which further stimulated SCF production, indicating that the SCF/STAT3/HIF1α positive loop was highly activated in the absence of APN. It implies that APN negatively regulated this positive loop by stimulating HIF1α degradation via the inactivation of GSK3β. Furthermore, APN KO BMSCs were highly migratory toward EL-4 lymphoma, and the interaction between CD44 in BMSCs and hyaluronic acid (HA) from EL-4 enhanced the migration of BMSCs. On the other hand, the migrated BMSCs recruited CD8+ T cells into the EL-4 tumor tissue, resulting in the retardation of tumor growth. Additionally, gradually increased APN in BM on the aging process affects migration and related functions of BMSCs, thus aged APN KO mice showed more significant suppression of EL-4 growth than young APN KO mice due to higher migration and recruitment of CD8+ T cells. CONCLUSION APN deficiency enhances CD44-mediated migration ability of BMSCs in the hypoxic conditions by the SCF/STAT3/HIF1α positive loop and influences the migration ability of BMSCs for a longer time depending on the aging process. Video Abstract.
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Affiliation(s)
- Sujung Soh
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Sora Han
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
- Research Institute of Women's Health, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Hye In Ka
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
- Research Institute of Women's Health, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Se Hwan Mun
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
- Research Institute of Women's Health, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Woojung Kim
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Gaeun Oh
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Young Yang
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea.
- Research Institute of Women's Health, Sookmyung Women's University, Seoul, 04310, Republic of Korea.
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Gao J, Liang Y, Chen J, Shen H, Liu H. CXCR4 enhances the inhibitory effects of bone mesenchymal stem cells on lung cell apoptosis in a rat model of smoking-induced COPD. Apoptosis 2023; 28:639-652. [PMID: 36719470 PMCID: PMC9888343 DOI: 10.1007/s10495-022-01800-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2022] [Indexed: 02/01/2023]
Abstract
Chronic obstructive pulmonary disease is the 3rd leading cause of death worldwide, and the available treatments are unsatisfactory, resulting in a major economic burden. As cellular therapy is commonly used for lung disease, we investigated a treatment with CXCR4-overexpressing BMSCs in a COPD model. We extracted and purified Bone marrow mesenchymal stem cells (BMSCs) from SD rats. COPD apoptosis model was established by cigarette smoke exposure. BMSCs (1 × 106 cells per injection)were transplanted in vivo twice a month during model establishment, and alveolar rupture in the lung was assessed. Lung cell apoptosis was assessed by terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) analysis, and the concentrations of apoptotic proteins in the lungs were detected by Western blotting. We successfully isolated BMSCs and established CXCR4-overexpressing BMSCs. qRT‒PCR and Western blotting detection both reveal that CXCR4 mRNA level and protein both significantly higher expression in CXCR4-BMSCs than the pBABE-BMSCs. Continuous cigarette smoke exposure caused alveolar septal rupture: In the model group, the alveolar mean linear intercept in the first month was significantly lower than that in the third month (p < 0.05). In the third month, the alveolar mean linear intercept values of the control and CXCR4-BMSC groups were lower than those of the model group (control group p < 0.01, CXCR4-BMSC group p < 0.05), and TUNEL staining revealed that the apoptosis rates of the control and CXCR4-BMSC groups were significantly lower than those of the model group (p < 0.01). Furthermore, the levels of the apoptotic proteins cleaved caspase-8, cleaved caspase-3 and cleaved PARP-1 were higher in the model group than in the control group (p < 0.05) and significantly lower in the CXCR4-BMSC group than in the model group (p < 0.05). The transplantation of CXCR4-overexpressing BMSCs during COPD model generation significantly inhibited apoptosis via the extrinsic apoptosis pathway. CXCR4 enhances the inhibitory effects of bone mesenchymal stem cells on lung cell apoptosis in a rat model of smoking-induced COPD.
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Affiliation(s)
- Jiansheng Gao
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yuli Liang
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiabao Chen
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Huihui Shen
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Hua Liu
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
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3
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Abdel-Latif A, Ahmed T, Leung SW, Alnabelsi T, Tarhuni W, Sekela ME. Autologous CD133 + Cells and Laser Revascularization in patients with severe Ischemic Cardiomyopathy. Stem Cell Rev Rep 2022; 19:817-822. [PMID: 36376770 DOI: 10.1007/s12015-022-10479-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We tested the hypothesis that targeted TMLR combined with intramyocardial injection of autologous CD 133+ progenitor cells is safe and feasible in patients with chronic ischemic cardiomyopathy (ICM) and no revascularization options. METHODS Eight male patients (age 62 ± 2.4 years) with multivessel severe ischemic heart disease and no revascularization options were enrolled. Autologous CD 133 + endothelial progenitor cells were derived and purified from the bone marrow on the day of surgery using the clinical-grade closed CliniMACS system. Using a lateral thoracotomy approach, TMLR was performed, followed by transmyocardial transplantation of purified CD133 + cells (mean number of transplanted cells: 12.5 × 106) in the region surrounding the TMLR sites. These sites were selected based on ischemia on pre-procedure perfusion imaging. We performed clinical and myocardial perfusion imaging pre-procedure and then at 6- and 12-month follow-up. RESULTS No major complications or death occurred during the procedure or during the peri-operative hospital stay. One patient died of cardiac cause 6 months post-procedure. There was a reported short-term improvement in anginal and heart failure symptoms and a modest reduction in the ischemic score as assessed by perfusion imaging. CONCLUSIONS Our phase 1 clinical study examining the combination therapy of targeted transmyocardial laser revascularization therapy and autologous CD133 + endothelial progenitor cells in patients with chronic ICM and no revascularization options demonstrates the feasibility and short-term safety of this combined approach and warrants future larger phase 2 randomized clinical studies.
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Affiliation(s)
- Ahmed Abdel-Latif
- Department of Cardiovascular Medicine, Division of Cardiology, University of Kentucky, Lexington, KY, USA
- Department of Cardiovascular Medicine, Division of Cardiology, University of Michigan, Ann Arbor, MI, USA
| | - Taha Ahmed
- Department of Cardiovascular Medicine, Division of Cardiology, University of Kentucky, Lexington, KY, USA
| | - Steve W Leung
- Department of Cardiovascular Medicine, Division of Cardiology, University of Kentucky, Lexington, KY, USA
| | - Talal Alnabelsi
- Department of Cardiovascular Medicine, Division of Cardiology, University of Kentucky, Lexington, KY, USA
| | - Wadea Tarhuni
- Department of Internal Medicine, Division of Cardiology, Canadian Cardiac Research Center, University of Saskatchewan, SK, Saskatoon, Canada
| | - Michael E Sekela
- Department of Cardiothoracic Surgery, University of Kentucky, Lexington, KY, USA.
- Heart Transplant, Division of Cardiothoracic Surgery, University of Kentucky, Lexington, KY, USA.
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4
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Ferreira JP, Ouwerkerk W, Santema BT, van Veldhuisen DJ, Lang CC, Ng LL, Anker SD, Dickstein K, Metra M, Cleland JGF, Nilesh SJ, Filippatos G, Aboumsallem JP, de Boer RA, Figarska S, Sama IE, Voors AA, Zannad F. Differences in biomarkers and molecular pathways according to age for patients with HFrEF. Cardiovasc Res 2020; 117:2228-2236. [DOI: 10.1093/cvr/cvaa279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/21/2020] [Accepted: 09/17/2020] [Indexed: 12/14/2022] Open
Abstract
Abstract
Aims
Elderly patients with heart failure with reduced ejection fraction (HFrEF) have worse prognosis and less often receive guideline-recommended therapies. We aim to better understand the underlying pathophysiological processes associated with ageing in HFrEF potentially leading to targeted therapies in this vulnerable population.
Methods and results
From a panel of 363 cardiovascular biomarkers available in 1611 patients with HFrEF in the BIOSTAT-CHF index cohort and cross-validated in 823 patients in the BIOSTAT-CHF validation cohort, we tested which biomarkers were dysregulated in patients aged >75 vs. <65 years. Second, pathway overrepresentation analyses were performed to identify biological pathways linked to higher plasma concentrations of biomarkers in elderly vs. younger patients. After adjustment, multiple test correction [false discovery rate (FDR) 1%], and cross-validation, 27/363 biomarkers were associated with older age, 22 positively and 5 negatively. The biomarkers that were positively associated with older age were associated with tumour cell regulation, extra-cellular matrix organization, and inflammatory processes, whereas biomarkers negatively associated with older age were associated with pathways that may point to cell proliferation and tumourigenesis. Among the 27 biomarkers, WFDC2 (WAP four-disulphide core domain protein 2)—that broadly functions as a protease inhibitor—was associated with older age and had the strongest association with all outcomes. No protein-by-sex interaction was observed.
Conclusions
In elderly HFrEF patients, pathways associated with extra-cellular matrix organization, inflammatory processes, and tumour cell regulation were activated, while pathways associated with tumour proliferation functions were down-regulated. These findings may help in a better understanding of the ageing processes in HFrEF and identify potential therapeutic targets.
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Affiliation(s)
- João Pedro Ferreira
- Université de Lorraine, Inserm, Centre d'Investigation Clinique - Plurithématique 14-33, Inserm U1116, CHRU, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), 4 rue du Morvan, Nancy 54500, France
| | - Wouter Ouwerkerk
- National Heart Centre Singapore, Hospital Drive, Singapore 169659, Singapore
- Department of Dermatology, Amsterdam UMC, University of Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam, the Netherlands
| | - Bernadet T Santema
- Department of Cardiology, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - Dirk J van Veldhuisen
- Department of Cardiology, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - Chim C Lang
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Leong L Ng
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Stefan D Anker
- Department of Cardiology (CVK) and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), German Centre for Cardiovascular Research (DZHK) partner site Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kenneth Dickstein
- Cardiology Division, Stavanger University Hospital, Postboks 8100, 4068 Stavanger, Norway
| | - Marco Metra
- Cardiology, ASST Spedali Civili and Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - John G F Cleland
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Samani J Nilesh
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Gerasimos Filippatos
- National and Kapodistrian University of Athens, School of Medicine, Attikon University Hospital, Athens, Greece
| | - Joseph-Pierre Aboumsallem
- Department of Cardiology, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - Sylwia Figarska
- Department of Cardiology, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - Iziah E Sama
- Department of Cardiology, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - Adriaan A Voors
- Department of Cardiology, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands
| | - Faiez Zannad
- Université de Lorraine, Inserm, Centre d'Investigation Clinique - Plurithématique 14-33, Inserm U1116, CHRU, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), 4 rue du Morvan, Nancy 54500, France
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Chaihulonggumulitang Shows Psycho-cardiology Therapeutic Effects on Acute Myocardial Infarction by Enhancing Bone Marrow Mesenchymal Stem Cells Mobilization. Sci Rep 2018; 8:3724. [PMID: 29487305 PMCID: PMC5829256 DOI: 10.1038/s41598-018-21789-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 02/09/2018] [Indexed: 12/25/2022] Open
Abstract
Ischemic myocardium initiates the mobilization and homing of bone marrow mesenchymal stem cells (BM-MSCs) to promote myocardial regeneration after acute myocardial infarction (AMI). Inflammation caused by necrotic cardiomyocytes induce major pathological changes (cardiac remodeling and myocardial apoptosis) as well as anxiety disorder. This process may be inhibited by the differentiation and paracrine effects of BM-MSCs. However, the spontaneous mobilization of BMSCs is insufficient to prevent this effect. Given the anti-inflammatory effects of BM-MSCs, ventricular remodeling and anxiety following AMI, methods focused on enhancing BMSCs mobilization are promising. BFG is a classical traditional Chinese prescription medicine and has been proved effective in treating AMI and reducing anxiety, but the potential mechanism of its function remains unknown. In the present study, we explored the effects of Chaihulonggumulitang (BFG) on AMI and anxiety in vivo and in vitro. We also tested its effects in promoting BMSCs mobilization and alleviating inflammation. Our data showed that the classical Chinese prescription BFG promoted BM-MSCs mobilization, inhibited inflammatory response, and improved heart damage and anxiety developed from AMI. Thus, we provided an underlying mechanism of BFG function in psycho-cardiology conditions such as AMI.
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Liu Q, Zhang X, Jiao Y, Liu X, Wang Y, Li SL, Zhang W, Chen FM, Ding Y, Jiang C, Jin Z. In vitro cell behaviors of bone mesenchymal stem cells derived from normal and postmenopausal osteoporotic rats. Int J Mol Med 2017; 41:669-678. [PMID: 29207050 PMCID: PMC5752170 DOI: 10.3892/ijmm.2017.3280] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 10/19/2017] [Indexed: 12/13/2022] Open
Abstract
Postmenopausal osteoporosis (PMO) increases bone fragility and the risk of fractures, and impairs the healing procedure of bone defects in aged women. The stromal cell-derived factor-1α (SDF-1α)/CXC chemokine receptor type 4 (CXCR4) axis helps to maintain the biological and physiological functions of bone marrow mesenchymal stem cells (BMSCs) and increase the homing efficiency of BMSCs. The present study aimed to provide insights into the possible association between migration and osteogenic ability and the SDF-1α/CXCR4 axis in BMSCs derived from a rat model of PMO. In order to do this, the general and SDF-1α/CXCR4-associated biological characteristics as well as associated molecular mechanisms in BMSCs isolated from a PMO rat model (OVX-BMSCs) and normal rats (Sham-BMSCs) were investigated and compared. In comparison with Sham-BMSCs, OVX-BMSCs exhibited an impaired osteogenic ability, but a stronger adipogenic activity as well as a higher proliferative ability. In addition, OVX-BMSCs presented a lower chemotactic activity towards SDF-1α, lower expression levels of CXCR4 and reduced levels of phosphorylated AKT (p-AKT). Therefore, the lower expression levels of CXCR4 and p-AKT may be responsible for the impaired osteogenic ability and lower chemotactic activity towards SDF-1α of OVX-BMSCs.
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Affiliation(s)
- Qian Liu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xiaoxia Zhang
- Department of Stomatology, Xi'an Medical College, Xi'an, Shaanxi 710309, P.R. China
| | - Yang Jiao
- Department of Stomatology, PLA Army General Hospital, Beijing 100700, P.R. China
| | - Xin Liu
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yirong Wang
- State Key Laboratory of Military Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Song-Lun Li
- Medical Service Management Office, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wei Zhang
- Research Center of Traditional Chinese Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yin Ding
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Chuan Jiang
- Department of Stomatology, The People's Hospital of Tongchuan, Tongchuan 727000, P.R. China
| | - Zuolin Jin
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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7
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Abstract
Stem cell mediated cardiac repair is an exciting and controversial area of cardiovascular research that holds the potential to produce novel, revolutionary therapies for the treatment of heart disease. Extensive investigation to define cell types contributing to cardiac formation, homeostasis and regeneration has produced several candidates, including adult cardiac c-Kit+ expressing stem and progenitor cells that have even been employed in a Phase I clinical trial demonstrating safety and feasibility of this therapeutic approach. However, the field of cardiac cell based therapy remains deeply divided due to strong disagreement among researchers and clinicians over which cell types, if any, are the best candidates for these applications. Research models that identify and define specific cardiac cells that effectively contribute to heart repair are urgently needed to resolve this debate. In this review, current c-Kit reporter models are discussed with respect to myocardial c-Kit cell biology and function, and future designs imagined to better represent endogenous myocardial c-Kit expression.
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Ruangsawasdi N, Zehnder M, Patcas R, Ghayor C, Siegenthaler B, Gjoksi B, Weber FE. Effects of Stem Cell Factor on Cell Homing During Functional Pulp Regeneration in Human Immature Teeth. Tissue Eng Part A 2016; 23:115-123. [PMID: 27762658 DOI: 10.1089/ten.tea.2016.0227] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Conventional root canal treatment in immature permanent teeth can lead to early tooth loss in children because root formation is discontinued. We investigated whether the stem cell factor (SCF) could facilitate cell homing in the pulpless immature root canal and promote regeneration of a functional pulp. In vitro, human mesenchymal stem cells (hMSCs) were exposed to SCF at various concentrations for assessing cell migration, proliferation, and differentiation toward odonto/osteoblasts by 3D-chemotaxis slides, WST-1 assay, and alkaline phosphatase activity, respectively. Fibrin gels were used to deliver 15 μg/mL SCF for in vivo experiments. The release kinetic of SCF was assessed in vitro. Two corresponding human immature premolars, with or without SCF, were placed at rat calvariae for 6 and 12 weeks. All tooth specimens were either analyzed histologically and the percentage of tissue ingrowth determined or the cells were extracted from the pulp space, and the mRNA level of DMP1, DSPP, Col1, NGF, and VEGF were assessed by quantitative polymerase chain reaction. In the presence of SCF, we saw an increase in hMSCs directional migration, proliferation, and odonto/osteogenic differentiation. SCF also increased the extent of tissue ingrowth at 6 weeks but not at 12 weeks. However, at this time point, the formed tissue appeared more mature in samples with SCF. In terms of gene transcription, DMP1, Col1, and VEGF were the significantly upregulated genes, while DSPP and NGF were not affected. Our results suggest that SCF can accelerate cell homing and the maturation of the pulp-dentin complex in human immature teeth.
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Affiliation(s)
- Nisarat Ruangsawasdi
- 1 Oral Biotechnology and Bioengineering, Center of Dental Medicine, University of Zürich , Zürich, Switzerland .,2 Zurich Center for Integrative Human Physiology (ZIHP), University of Zürich , Zürich, Switzerland .,3 Department of Pharmacology, Faculty of Dentistry, Mahidol University , Bangkok, Thailand
| | - Matthias Zehnder
- 4 Clinic for Preventive Dentistry, Periodontology, and Cariology, University of Zürich , Zürich, Switzerland
| | - Raphael Patcas
- 5 Clinic for Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zürich , Zürich, Switzerland
| | - Chafik Ghayor
- 1 Oral Biotechnology and Bioengineering, Center of Dental Medicine, University of Zürich , Zürich, Switzerland
| | - Barbara Siegenthaler
- 1 Oral Biotechnology and Bioengineering, Center of Dental Medicine, University of Zürich , Zürich, Switzerland .,2 Zurich Center for Integrative Human Physiology (ZIHP), University of Zürich , Zürich, Switzerland
| | - Bebeka Gjoksi
- 1 Oral Biotechnology and Bioengineering, Center of Dental Medicine, University of Zürich , Zürich, Switzerland
| | - Franz E Weber
- 1 Oral Biotechnology and Bioengineering, Center of Dental Medicine, University of Zürich , Zürich, Switzerland .,2 Zurich Center for Integrative Human Physiology (ZIHP), University of Zürich , Zürich, Switzerland
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Zhang F, Cui J, Liu X, Lv B, Liu X, Xie Z, Yu B. Roles of microRNA-34a targeting SIRT1 in mesenchymal stem cells. Stem Cell Res Ther 2015; 6:195. [PMID: 26446137 PMCID: PMC4597437 DOI: 10.1186/s13287-015-0187-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/13/2015] [Accepted: 09/21/2015] [Indexed: 12/27/2022] Open
Abstract
Introduction Mesenchymal stem cell (MSC)-based therapies have had positive outcomes both in animal models of cardiovascular diseases and in clinical patients. However, the number and function of MSCs decline during hypoxia and serum deprivation (H/SD), reducing their ability to contribute to endogenous injury repair. MicroRNA-34a (miR-34a) is originally identified as a TP53-targeted miRNA that modulates cell functions, including apoptosis, proliferation, and senescence via several signaling pathways, and hence is an appealing target for MSC-based therapy for myocardial infarction. Methods Bone marrow-derived MSCs were isolated from 60–80 g male donor rats. Expression levels of miR-34a were determined by qRT-PCR. The roles of miR-34a in regulating cell vitality, apoptosis and senescence were investigated using the cell counting kit (CCK-8) assay, flow cytometric analysis of Annexin V-FITC/PI staining and senescence-associated β-galactosidase (SA-β-gal) staining, respectively. The expression of silent information regulator 1 (SIRT1) and forkhead box class O 3a (FOXO3a) and of apoptosis- and senescence-associated proteins in MSCs were analyzed by western blotting. Results The results of the current study showed that miR-34a was significantly up-regulated under H/SD conditions in MSCs, while overexpression of miR-34a was significantly associated with increased apoptosis, impaired cell vitality and aggravated senescence. Moreover, we found that the mechanism underlying the proapoptotic function of miR-34a involves activation of the SIRT1/FOXO3a pathway, mitochondrial dysfunction and finally, activation of the intrinsic apoptosis pathway. Further study showed that miR-34a can also aggravate MSC senescence, an effect which was partly abolished by the reactive oxygen species (ROS) scavenger, N-acetylcysteine (NAC). Conclusions Our study demonstrates for the first time that miR-34a plays pro-apoptotic and pro-senescence roles in MSCs by targeting SIRT1. Thus, inhibition of miR-34a might have important therapeutic implications in MSC-based therapy for myocardial infarction.
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Affiliation(s)
- Fengyun Zhang
- Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China. .,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China.
| | - Jinjin Cui
- Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China. .,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China.
| | - Xiaojing Liu
- Department of Cardiology, Mudanjiang Forestry Central Hospital, 50 XinhuaRoad, Mudanjiang, 157000, P.R. China.
| | - Bo Lv
- Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China. .,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China.
| | - Xinxin Liu
- Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China. .,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China.
| | - Zulong Xie
- Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China. .,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China.
| | - Bo Yu
- Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China. .,Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, 148 Baojian Road, Harbin, 150086, P.R. China.
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10
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Elevated Serum Tryptase and Endothelin in Patients with ST Segment Elevation Myocardial Infarction: Preliminary Report. Mediators Inflamm 2015; 2015:395173. [PMID: 26089601 PMCID: PMC4452104 DOI: 10.1155/2015/395173] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 04/19/2015] [Accepted: 05/08/2015] [Indexed: 11/17/2022] Open
Abstract
UNLABELLED An inflammatory response plays a crucial role in myocardial damage after an acute myocardial infarction. OBJECTIVES To measure serum concentrations of several mediators in patients with an acute myocardial infarction (STEMI) and to assess their potential relationship with a risk of coronary instability. PATIENTS AND METHODS The 33 patients with STEMI and 19 healthy volunteers were analyzed. The clinical data were obtained; as well serum concentrations of tryptase, endothelin (ET-1), angiogenin, soluble c-kit, and PDGF were measured. RESULTS Patients with STEMI had higher serum tryptase and ET-1 than healthy volunteers (2,5 ± 0,4 ng/mL versus 1,1 ± 0,4 ng/mL and 0,7 ± 0,1 ng/mL versus 0,3 ± 0,1 ng/mL, resp.). Subjects with significant lesion in left anterior descending artery (LAD) had lower serum ET-1 compared to those with normal LAD (0,6 ± 0,2 pg/mL versus 0,9 ± 0,4 pg/mL). Patients with three-vessel coronary artery disease (CAD) had higher level of soluble c-kit compared to those with one- or two-vessel CAD: 19,9 ± 24,1 ng/mL versus 5,6 ± 1,9 ng/mL. CONCLUSIONS Elevated serum tryptase and ET-1 may be markers of increased coronary instability; some cytokines may be related to the extension of CAD.
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