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Qi S, Du Y, Sun M, Zhang L, Chen Z, Xiong H. Aberrant myelomonocytic CD56 expression predicts response to cyclosporine therapy in pediatric patients with moderate aplastic anemia. Front Pediatr 2023; 11:1272593. [PMID: 38152649 PMCID: PMC10751928 DOI: 10.3389/fped.2023.1272593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/29/2023] [Indexed: 12/29/2023] Open
Abstract
Objects This study aimed to investigate the expression patterns and clinical significance of neural cell adhesion molecule-positive (CD56+) myelomonocytes in pediatric patients with moderate aplastic anemia (mAA). Methods Fifty-six pediatric patients with mAA were enrolled in this study. The patients' clinical characteristics, laboratory data, and response to cyclosporine therapy were obtained. CD56 expression on bone marrow myelomonocytic cells was investigated using flow cytometry. The association between aberrant CD56 expression and cyclosporine response was evaluated by a multivariate analysis. Results CD56+ myelomonocytes were detected in 43% of the mAA cases. Aberrant CD56 expression was frequent on immature CD45dimCD16dim granulocytes and mature CD45brightCD14bright monocytes. Compared with patients with CD56- myelomonocytes (CD56- patients), patients with CD56+ myelomonocytes (CD56+ patients) were in moderate hematological condition and had a distinct bone marrow cellular composition profile, which included an increased proportion of myeloid cells and CD56bright natural killer cells and a reduced proportion of CD4+ T cells, CD8+ T cells, and B cells. The multivariate analysis determined that CD56+ myelomonocytes were a favorable factor for achieving response at 6 months after cyclosporine therapy. There was a trend towards a lower 3-year rate of evolution to severe aplastic anemia or relapse among the CD56+ patients (8%) than the CD56- patients (22%). Conclusion CD56+ patients had an increased myeloid compartment and better prognosis compared with CD56- patients. The findings demonstrated the favorable role of CD56+ myelomonocytes in aplastic anemia progression.
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Affiliation(s)
- Shanshan Qi
- Laboratory of Pediatric Hematology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yu Du
- Department of Hematology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Sun
- Laboratory of Pediatric Hematology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lin Zhang
- Department of Hematology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhi Chen
- Department of Hematology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Xiong
- Laboratory of Pediatric Hematology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Hematology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Iltar U, Ataş Ü, Vural E, Alhan FN, Yücel OK, Salim O, Undar L. Outcomes of stem cell mobilization and engraftment in patients with multiple myeloma according to CD56 expression status. Transfus Apher Sci 2022; 61:103351. [PMID: 35022157 DOI: 10.1016/j.transci.2022.103351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND The molecular mechanism underlying the mobilization and engraftment of CD34+ cells is poorly understood. The most relevant factors in the regulation of stem cell release and engraftment include chemokines, adhesion molecules, and chemokine receptors. Previously, it was suggested that the absence of CD56 expression could be used as a predictive factor for mobilization failure at the time of diagnosis. Here, we investigated the effect of CD56 expression status on both mobilization and engraftment processes. Additionally, other factors affecting mobilization and engraftment efficacy were investigated. METHODS Data from 79 multiple myeloma patients undergoing autologous stem cell transplantation between 2015 and 2020 were analyzed for peripheral stem cell mobilization and posttransplant neutrophil and platelet engraftment according to CD56 expression on myeloma cells. RESULTS No difference in either the median number of CD34+ cells collected or time to engraftment was found between the CD56+ and CD56- groups. The age of the patients (p = 0.025) and peak number of circulating CD34+ cells in peripheral blood (p = 0.005) were important predictors for a higher number of collected CD34+ cells. The average time to recovery of leukocytes and platelets after transplantation was markedly correlated with the number of transplanted stem cells and peak number of circulating CD34+ cells in peripheral blood, respectively (p = 0.049 and p = 0.003). CONCLUSIONS Our results indicated no effect of CD56 expression status on the mobilization and engraftment of PBSCs. Our results also support the notion that the peak number of circulating CD34+ cells in peripheral blood is clinically important for rapid platelet engraftment following HPC transplantation.
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Affiliation(s)
- Utku Iltar
- Akdeniz University, Faculty of Medicine, Department of Internal Medicine, Division of Hematology, Antalya, Turkey.
| | - Ünal Ataş
- Akdeniz University, Faculty of Medicine, Department of Internal Medicine, Division of Hematology, Antalya, Turkey
| | - Ece Vural
- Akdeniz University, Faculty of Medicine, Department of Internal Medicine, Division of Hematology, Antalya, Turkey
| | - Fadime Nurcan Alhan
- Akdeniz University, Faculty of Medicine, Department of Internal Medicine, Division of Hematology, Antalya, Turkey
| | - Orhan Kemal Yücel
- Akdeniz University, Faculty of Medicine, Department of Internal Medicine, Division of Hematology, Antalya, Turkey
| | - Ozan Salim
- Akdeniz University, Faculty of Medicine, Department of Internal Medicine, Division of Hematology, Antalya, Turkey
| | - Levent Undar
- Akdeniz University, Faculty of Medicine, Department of Internal Medicine, Division of Hematology, Antalya, Turkey
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Abstract
INTRODUCTION Sertoli cells play central roles in the development of testis formation in fetuses and the initiation and maintenance of spermatogenesis in puberty and adulthood, and disorders of Sertoli cell proliferation and/or functional maturation can cause male reproductive disorders at various life stages. It's well documented that various genes are either overexpressed or absent in Sertoli cells during the conversion of an immature, proliferating Sertoli cell to a mature, non-proliferating Sertoli cell, which are considered as Sertoli cell stage-specific markers. Thus, it is paramount to choose an appropriate Sertoli cell marker that will be used not only to identify the developmental, proliferative, and maturation of Sertoli cell status in the testis during the fetal period, prepuberty, puberty, or in the adult, but also to diagnose the mechanisms underlying spermatogenic dysfunction. AREAS COVERED In this review, we principally enumerated 5 categories of testicular Sertoli cell markers - including immature Sertoli cell markers, mature Sertoli cell markers, immature/mature Sertoli cell markers, Sertoli cell functional markers, and others. EXPERT OPINION By delineating the characteristics and applications of more than 20 Sertoli cell markers, this review provided novel Sertoli cell markers for the more accurate diagnosis and mechanistic evaluation of male reproductive disorders.
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Affiliation(s)
- Xu You
- College of Medicine, China Three Gorges University, Yichang, China.,Third-Grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang China
| | - Qian Chen
- College of Medicine, China Three Gorges University, Yichang, China.,Third-Grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang China.,The Second People's Hospital of Yichang, China Three Gorges University, Yichang China
| | - Ding Yuan
- College of Medicine, China Three Gorges University, Yichang, China
| | - Changcheng Zhang
- College of Medicine, China Three Gorges University, Yichang, China.,Third-Grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang China
| | - Haixia Zhao
- College of Medicine, China Three Gorges University, Yichang, China.,Third-Grade Pharmacological Laboratory on Traditional Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang China
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Arulmozhivarman G, Kräter M, Wobus M, Friedrichs J, Bejestani EP, Müller K, Lambert K, Alexopoulou D, Dahl A, Stöter M, Bickle M, Shayegi N, Hampe J, Stölzel F, Brand M, von Bonin M, Bornhäuser M. Zebrafish In-Vivo Screening for Compounds Amplifying Hematopoietic Stem and Progenitor Cells: - Preclinical Validation in Human CD34+ Stem and Progenitor Cells. Sci Rep 2017; 7:12084. [PMID: 28935977 PMCID: PMC5608703 DOI: 10.1038/s41598-017-12360-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 09/08/2017] [Indexed: 01/13/2023] Open
Abstract
The identification of small molecules that either increase the number and/or enhance the activity of human hematopoietic stem and progenitor cells (hHSPCs) during ex vivo expansion remains challenging. We used an unbiased in vivo chemical screen in a transgenic (c-myb:EGFP) zebrafish embryo model and identified histone deacetylase inhibitors (HDACIs), particularly valproic acid (VPA), as significant enhancers of the number of phenotypic HSPCs, both in vivo and during ex vivo expansion. The long-term functionality of these expanded hHSPCs was verified in a xenotransplantation model with NSG mice. Interestingly, VPA increased CD34+ cell adhesion to primary mesenchymal stromal cells and reduced their in vitro chemokine-mediated migration capacity. In line with this, VPA-treated human CD34+ cells showed reduced homing and early engraftment in a xenograft transplant model, but retained their long-term engraftment potential in vivo, and maintained their differentiation ability both in vitro and in vivo. In summary, our data demonstrate that certain HDACIs lead to a net expansion of hHSPCs with retained long-term engraftment potential and could be further explored as candidate compounds to amplify ex-vivo engineered peripheral blood stem cells.
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Affiliation(s)
| | - Martin Kräter
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Manja Wobus
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Jens Friedrichs
- Institute of Biofunctional Polymer Materials, Leibniz Institute for Polymer Research, Max Bergmann Center of Biomaterials, Dresden, Germany
| | - Elham Pishali Bejestani
- German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Consortium for Translational Cancer Research (DKTK), partner site, Dresden, Germany
| | - Katrin Müller
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Katrin Lambert
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Dimitra Alexopoulou
- Deep Sequencing Group SFB655, Biotechnology Center, Technical University of Dresden, Dresden, Germany
| | - Andreas Dahl
- Deep Sequencing Group SFB655, Biotechnology Center, Technical University of Dresden, Dresden, Germany
| | - Martin Stöter
- Max-Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Marc Bickle
- Max-Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Nona Shayegi
- Department of Hematology, University Hospital Essen, University of Duisburg, Essen, Germany
| | - Jochen Hampe
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Friedrich Stölzel
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany
| | - Michael Brand
- DFG-Center for Regenerative Therapies Dresden (CRTD) - Cluster of Excellence, Technical University of Dresden, Dresden, Germany.
| | - Malte von Bonin
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Consortium for Translational Cancer Research (DKTK), partner site, Dresden, Germany
| | - Martin Bornhäuser
- Department of Hematology/Oncology, Medical Clinic and Policlinic I, University Hospital, Dresden, Germany. .,DFG-Center for Regenerative Therapies Dresden (CRTD) - Cluster of Excellence, Technical University of Dresden, Dresden, Germany.
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5
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Van Acker HH, Capsomidis A, Smits EL, Van Tendeloo VF. CD56 in the Immune System: More Than a Marker for Cytotoxicity? Front Immunol 2017; 8:892. [PMID: 28791027 PMCID: PMC5522883 DOI: 10.3389/fimmu.2017.00892] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 07/12/2017] [Indexed: 11/13/2022] Open
Abstract
Over the past years, the phenotypic and functional boundaries distinguishing the main cell subsets of the immune system have become increasingly blurred. In this respect, CD56 (also known as neural cell adhesion molecule) is a very good example. CD56 is the archetypal phenotypic marker of natural killer cells but can actually be expressed by many more immune cells, including alpha beta T cells, gamma delta T cells, dendritic cells, and monocytes. Common to all these CD56-expressing cell types are strong immunostimulatory effector functions, including T helper 1 cytokine production and an efficient cytotoxic capacity. Interestingly, both numerical and functional deficiencies and phenotypic alterations of the CD56+ immune cell fraction have been reported in patients with various infectious, autoimmune, or malignant diseases. In this review, we will discuss our current knowledge on the expression and function of CD56 in the hematopoietic system, both in health and disease.
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Affiliation(s)
- Heleen H Van Acker
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - Anna Capsomidis
- Cancer Section, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Evelien L Smits
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium.,Center for Cell Therapy and Regenerative Medicine, Antwerp University Hospital, Edegem, Belgium.,Center for Oncological Research (CORE), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Viggo F Van Tendeloo
- Laboratory of Experimental Hematology, Tumor Immunology Group (TIGR), Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
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Harichandan A, Sivasubramaniyan K, Bühring HJ. Prospective isolation and characterization of human bone marrow-derived MSCs. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014; 129:1-17. [PMID: 22825720 DOI: 10.1007/10_2012_147] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
There is an increasing interest in adult stem cells, especially mesenchymal stem/stromal cells (MSCs), in hematology and regenerative medicine because of the simplicity of isolation and ex vivo expansion of these cells. Conventionally, MSCs are functionally isolated from tissue based on their capacity to adhere to the surface of culture flasks. This isolation procedure is hampered by the unpredictable influence of secreted molecules and interactions with co-cultured hematopoietic and other unrelated cells, as well as by the arbitrarily selected removal time of non-adherent cells prior to the expansion of MSCs. Finally, functionally isolated cells do not provide biological information about the starting population. To circumvent these limitations, several strategies have been developed to facilitate the prospective isolation of MSCs based on the selective expression or absence of surface markers. The isolation and ex vivo expansion of these cells require an adequate quality control of the source and product. Here we summarize the most frequently used markers and introduce new targets for antibody-based isolation and characterization of bone marrow-derived MSCs.
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Affiliation(s)
- A Harichandan
- Division of Haematology, Immunology, Oncology, Rheumatology, and Pulmonology, Department of Internal Medicine II, University Clinic of Tübingen, Tübingen, Germany
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7
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Kristensen HB, Andersen TL, Marcussen N, Rolighed L, Delaisse JM. Increased presence of capillaries next to remodeling sites in adult human cancellous bone. J Bone Miner Res 2013; 28:574-85. [PMID: 22991221 DOI: 10.1002/jbmr.1760] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 08/24/2012] [Accepted: 09/07/2012] [Indexed: 12/22/2022]
Abstract
Vascularization is a prerequisite for osteogenesis in a number of situations, including bone development, fracture healing, and cortical bone remodeling. It is unknown whether a similar link exists between cancellous bone remodeling and vascularization. Here, we show an association between remodeling sites, capillaries, proliferative cells, and putative osteoblast progenitors. Iliac crest biopsies from normal human individuals were subjected to histomorphometry and immunohistochemistry to identify the respective positions of bone remodeling sites, CD34-positive capillaries, smooth muscle actin (SMA)-positive putative osteoblast progenitors, including pericytes, Ki67-positive proliferative cells, and bone remodeling compartment (BRC) canopies. The BRC canopy is a recently described structure separating remodeling sites from the bone marrow, consisting of CD56-positive osteoblasts at an early differentiation stage. We found that bone remodeling sites were associated with a significantly increased presence of capillaries, putative osteoblast progenitors, and proliferative cells in a region within 50 µm of the bone or the canopy surface. The increases were the highest above eroded surfaces and at the level of the light-microscopically assessed contact of these three entities with the bone or canopy surfaces. Between 51 and 100 µm, their densities leveled to that found above quiescent surfaces. Electron microscopy asserted the close proximity between BRC canopies and capillaries lined by pericytes. Furthermore, the BRC canopy cells were found to express SMA. These ordered distributions support the existence of an osteogenic-vascular interface in adult human cancellous bone. The organization of this interface fits the current knowledge on the mode of action of vasculature on osteogenesis, and points to the BRC canopy as a central player in this mechanism. We propose a model where initiation of bone remodeling coincides with the induction of proximity of the vasculature to endosteal surfaces, thereby allowing capillary-BRC canopy interactions that activate marrow events, including recruitment of osteoblast progenitors to bone remodeling sites.
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Affiliation(s)
- Helene Bjoerg Kristensen
- Department of Clinical Cell Biology, Lillebaelt/Vejle Hospital, IRS, University of Southern Denmark, Vejle, Denmark.
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Sivasubramaniyan K, Lehnen D, Ghazanfari R, Sobiesiak M, Harichandan A, Mortha E, Petkova N, Grimm S, Cerabona F, de Zwart P, Abele H, Aicher WK, Faul C, Kanz L, Bühring HJ. Phenotypic and functional heterogeneity of human bone marrow- and amnion-derived MSC subsets. Ann N Y Acad Sci 2012; 1266:94-106. [PMID: 22901261 DOI: 10.1111/j.1749-6632.2012.06551.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Bone marrow-derived mesenchymal stromal/stem cells (MSCs) are nonhematopoietic cells that are able to differentiate into osteoblasts, adipocytes, and chondrocytes. In addition, they are known to participate in niche formation for hematopoietic stem cells and to display immunomodulatory properties. Conventionally, these cells are functionally isolated from tissue based on their capacity to adhere to the surface of culture flasks. This isolation procedure is hampered by the unpredictable influence of secreted molecules, the interactions between cocultured hematopoietic and other unrelated cells, and by the arbitrarily selected removal time of nonadherent cells before the expansion of MSCs. Finally, functionally isolated cells do not provide biological information about the starting population. To circumvent these limitations, several strategies have been developed to facilitate the prospective isolation of MSCs based on the selective expression, or absence, of surface markers. In this report, we summarize the most frequently used markers and introduce new targets for antibody-based isolation procedures of primary bone marrow- and amnion-derived MSCs.
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Affiliation(s)
- Kavitha Sivasubramaniyan
- Department of Internal Medicine II, Division of Hematology, Immunology, Oncology, Rheumatology and Pulmonology, University Clinic of Tübingen, Tübingen, Germany
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Shi Y, Xia YY, Wang L, Liu R, Khoo KS, Feng ZW. Neural cell adhesion molecule modulates mesenchymal stromal cell migration via activation of MAPK/ERK signaling. Exp Cell Res 2012; 318:2257-67. [PMID: 22683856 DOI: 10.1016/j.yexcr.2012.05.029] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Revised: 05/25/2012] [Accepted: 05/28/2012] [Indexed: 12/18/2022]
Abstract
Mesenchymal Stromal Cells (MSCs) represent promising tools for cellular therapy owing to their multipotentiality and ability to localize to injured, inflamed sites and tumor. Various approaches to manipulate expression of MSC surface markers, including adhesion molecules and chemokine receptors, have been explored to enhance homing of MSCs. Recently, Neural Cell Adhesion Molecule (NCAM) has been found to be expressed on MSCs yet its function remains largely elusive. Herein, we show that bone marrow-derived MSCs from NCAM deficient mice exhibit defective migratory ability and significantly impaired adipogenic and osteogenic differentiation potential. We further explore the mechanism governing NCAM mediated migration of MSCs by showing the interplay between NCAM and Fibroblast Growth Factor Receptor (FGFR) induces activation of MAPK/ERK signaling, thereby the migration of MSCs. In addition, re-expression of NCAM180, but not NCAM140, could restore the defective MAPK/ERK signaling thereby the migration of NCAM deficient MSCs. Finally, we demonstrate that NCAM180 expression level could be manipulated by pro-inflammatory cytokine Tumor Necrosis Factor (TNF)-α treatment. Overall, our data reveal the vital function of NCAM in MSCs migration and differentiation thus raising the possibility of manipulating NCAM expression to enhance homing and therapeutic potential of MSCs in cellular therapy.
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Affiliation(s)
- Yu Shi
- School of Biological Sciences, Nanyang Technological University, #60 Nanyang Drive, Singapore 637551, Singapore
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Yang HJ, Xia YY, Wang L, Liu R, Goh KJ, Ju PJ, Feng ZW. A novel role for neural cell adhesion molecule in modulating insulin signaling and adipocyte differentiation of mouse mesenchymal stem cells. J Cell Sci 2011; 124:2552-60. [PMID: 21730021 DOI: 10.1242/jcs.085340] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Neural cell adhesion molecule (NCAM) has recently been found on adult stem cells, but its biological significance remains largely unknown. In this study, we used bone-marrow-derived mesenchymal stem cells (MSCs) from wild-type and NCAM knockout mice to investigate the role of NCAM in adipocyte differentiation. It was demonstrated that NCAM isoforms 180 and 140 but not NCAM-120 are expressed on almost all wild-type MSCs. Upon adipogenic induction, Ncam(-/-) MSCs exhibited a marked decrease in adipocyte differentiation compared with wild-type cells. The role of NCAM in adipocyte differentiation was also confirmed in NCAM-silenced preadipocyte 3T3-L1 cells, which also had a phenotype with reduced adipogenic potential. In addition, we found that Ncam(-/-) MSCs appeared to be insulin resistant, as shown by their impaired insulin signaling cascade, such as the activation of the insulin-IGF-1 receptor, PI3K-Akt and CREB pathways. The PI3K-Akt inhibitor, LY294002, completely blocked adipocyte differentiation of MSCs, unveiling that the reduced adipogenic potential of Ncam(-/-) MSCs is due to insulin resistance as a result of loss of NCAM function. Furthermore, insulin resistance of Ncam(-/-) MSCs was shown to be associated with induction of tumor necrosis factor α (TNF-α), a key mediator of insulin resistance. Finally, we demonstrated that re-expression of NCAM-180, but not NCAM-140, inhibits induction of TNF-α and thereby improves insulin resistance and adipogenic potential of Ncam(-/-) MSCs. Our results suggest a novel role of NCAM in promoting insulin signaling and adipocyte differentiation of adult stem cells. These findings raise the possibility of using NCAM intervention to improve insulin resistance.
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Affiliation(s)
- Hai Jie Yang
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
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11
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Wang X, Hisha H, Mizokami T, Cui W, Cui Y, Shi A, Song C, Okazaki S, Li Q, Feng W, Kato J, Ikehara S. Mouse mesenchymal stem cells can support human hematopoiesis both in vitro and in vivo: the crucial role of neural cell adhesion molecule. Haematologica 2009; 95:884-91. [PMID: 20015889 DOI: 10.3324/haematol.2009.013151] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND We previously established a mesenchymal stem cell line (FMS/PA6-P) from the bone marrow adherent cells of fetal mice. The cell line expresses a higher level of neural cell adhesion molecule and shows greater hematopoiesis-supporting capacity in mice than other murine stromal cell lines. DESIGN AND METHODS Since there is 94% homology between human and murine neural cell adhesion molecule, we examined whether FMS/PA6-P cells support human hematopoiesis and whether neural cell adhesion molecules expressed on FMS/PA6-P cells contribute greatly to the human hematopoiesis-supporting ability of the cell line. RESULTS When lineage-negative cord blood mononuclear cells were co-cultured on the FMS/PA6-P cells, a significantly greater hematopoietic stem cell-enriched population (CD34(+)CD38(-) cells) was obtained than in the culture without the FMS/PA6-P cells. Moreover, when lineage-negative cord blood mononuclear cells were cultured on FMS/PA6-P cells and transplanted into SCID mice, a significantly larger proportion of human CD45(+) cells and CD34(+)CD38(-) cells were detected in the bone marrow of SCID mice than in the bone marrow of SCID mice that had received lineage-negative cord blood mononuclear cells cultured without FMS/PA6-P cells. Furthermore, we found that direct cell-to-cell contact between the lineage-negative cord blood mononuclear cells and the FMS/PA6-P cells was essential for the maximum expansion of the mononuclear cells. The addition of anti-mouse neural cell adhesion molecule antibody to the culture significantly inhibited their contact and the proliferation of lineage-negative cord blood mononuclear cells. CONCLUSIONS These findings suggest that neural cell adhesion molecules expressed on FMS/PA6-P cells play a crucial role in the human hematopoiesis-supporting ability of the cell line.
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Affiliation(s)
- Xiaoli Wang
- 1st Dept of Pathology, Kansai Medical University, Moriguchi City, Osaka 570-8506, Japan
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Mizokami T, Hisha H, Okazaki S, Takaki T, Wang XL, Song CY, Li Q, Kato J, Hosaka N, Inaba M, Kanzaki H, Ikehara S. Preferential expansion of human umbilical cord blood-derived CD34-positive cells on major histocompatibility complex-matched amnion-derived mesenchymal stem cells. Haematologica 2009; 94:618-28. [PMID: 19336739 DOI: 10.3324/haematol.2008.004705] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND We previously found in a murine hematopoietic system that hematopoietic stem cells show high differentiation and proliferation capacity on bone marrow-derived mesenchymal stem cells/stromal cells (microenvironment) with "self" major histocompatibility complex (MHC). DESIGN AND METHODS We examined whether amnion-derived adherent cells have the characteristics of mesenchymal stem cells, and whether these adherent cells can support the proliferation of umbilical cord blood-derived lineage-negative and CD34-positive cells (Lin(-)CD34(+) cells) obtained from the same fetus to a greater extent than those derived from other fetuses. RESULTS Culture-expanded amnion-derived adherent cells expressed mesenchymal stem cell markers and HLA-ABC molecules and could differentiate into osteoblasts, adipocytes and chondrocyte-like cells, indicating that the cells have the characteristics of mesenchymal stem cells. The Lin(-)CD34(+) cells purified from the frozen umbilical cord blood were strongly positive for HLA-ABC, and contained a large number of hematopoietic stem cells. When the Lin(-)CD34(+) cells were cultured on the autologous (MHC-matched) or MHC-mismatched amnion-derived adherent cells in short-term assays (hematopoietic stem cell-proliferation) and long-term culture-initiating cell assays, greater expansion of the Lin(-)CD34(+) cells was observed in the MHC-matched combination than in MHC-mismatched combinations. The concentration of granulocyte-macrophage colony-stimulating factor in the culture supernatants of the long-term culture-initiating cell assays was significantly higher in the MHC-matched combination than in MHC-mismatched combinations. CONCLUSIONS IT is likely that a MHC restriction exists between hematopoietic stem cells and mesenchymal stem cells/stromal cells in the human hematopoietic system and that granulocute-macropage colony-stimulating factor contributes to some extent to the preferential hematopoiesis-supporting ability of the MHC-matched amnion-derived adherent cells.
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Affiliation(s)
- Tomomi Mizokami
- First Department of Pathology, Kansai Medical University, 10-15 Fumizono-cho, Moriguchi City, Osaka, Japan
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