1
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Xi Y, Yue G, Gao S, Ju R, Wang Y. Human umbilical cord blood mononuclear cells transplantation for perinatal brain injury. Stem Cell Res Ther 2022; 13:458. [PMID: 36064459 PMCID: PMC9446746 DOI: 10.1186/s13287-022-03153-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/22/2022] [Indexed: 01/06/2023] Open
Abstract
Perinatal brain injury is a leading cause of death and disability in children. Hypoxic-ischemic encephalopathy in full term infants, and white matter injury in premature infants are most known brain injury in perinatal period. Human umbilical cord blood mononuclear cells contain hematopoietic stem cells, mesenchymal stem cells, endothelial progenitor cells, lymphocytes, monocytes, and so on. Human umbilical cord blood mononuclear cells have many biological functions, such as nerve and vascular regeneration, anti-apoptosis, anti-inflammation, and immune regulation. Human umbilical cord blood mononuclear cells transplantation has achieved significant efficacy and safety in animal and clinical trials for the treatment of perinatal brain injury. We will review human umbilical cord blood mononuclear cells transplantation for perinatal brain injury in this review.
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Affiliation(s)
- Yufeng Xi
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Guang Yue
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Shuqiang Gao
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Rong Ju
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, China.
| | - Yujia Wang
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, China. .,Department of Dermatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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2
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Samimi A, Khodayar MJ, Alidadi H, Khodadi E. The Dual Role of ROS in Hematological Malignancies: Stem Cell Protection and Cancer Cell Metastasis. Stem Cell Rev Rep 2021; 16:262-275. [PMID: 31912368 DOI: 10.1007/s12015-019-09949-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVE Reactive oxygen species (ROS) play crucial role in hematopoiesis, regulation of differentiation, self-renewal, and the balance between quiescence and proliferation of hematopoietic stem cells (HSCs). The HSCs are a small population of undifferentiated cells that reside in the bone marrow (BM) and can undergo self-renewal by giving rise to mature cells. METHODS Relevant literature was identified through a PubMed search (2000-2019) of English-language papers using the following terms: reactive oxygen species, hematopoietic stem cell, leukemic stem cell, leukemia and chemotherapy. RESULTS HSCs are very sensitive to high levels of ROS and increased production of ROS have been attributed to HSC aging. HSC aging induced by both cell intrinsic and extrinsic factors is linked to impaired HSC self-renewal and regeneration. In addition, the elevated ROS levels might even trigger differentiation of Leukemic stem cells (LSCs) and ROS may be involved in the initiation and progression of hematological malignancies, such as leukemia. CONCLUSION Targeting genes involved in ROS in LSCs and HSCs are increasingly being used as a critical target for therapeutic interventions. Appropriate concentration of ROS may be an optimal therapeutic target for treatment of leukemia during chemotherapy, but still more studies are required to better understanding of the of ROS role in blood disorders.
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Affiliation(s)
- Azin Samimi
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Legal Medicine Organization, Legal Medicine Research Center, Ahvaz, Iran
| | - Mohammad Javad Khodayar
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hadis Alidadi
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Elahe Khodadi
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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3
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Oliveira CS, Carreira M, Correia CR, Mano JF. The Therapeutic Potential of Hematopoietic Stem Cells in Bone Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:379-392. [PMID: 33683146 DOI: 10.1089/ten.teb.2021.0019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The repair process of bone fractures is a complex biological mechanism requiring the recruitment and in situ functionality of stem/stromal cells from the bone marrow (BM). BM mesenchymal stem/stromal cells have been widely explored in multiple bone tissue engineering applications, whereas the use of hematopoietic stem cells (HSCs) has been poorly investigated in this context. A reasonable explanation is the fact that the role of HSCs and their combined effect with other elements of the hematopoietic niches in the bone-healing process is still elusive. Therefore, in this review we intend to highlight the influence of HSCs in the bone repair process, mainly through the promotion of osteogenesis and angiogenesis at the bone injury site. For that, we briefly describe the main biological characteristics of HSCs, as well as their hematopoietic niches, while reviewing the biomimetic engineered BM niche models. Moreover, we also highlighted the role of HSCs in translational in vivo transplantation or implantation as promoters of bone tissue repair.
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Affiliation(s)
- Cláudia S Oliveira
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Mariana Carreira
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Clara R Correia
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - João F Mano
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
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4
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Molecular Modulation of Fetal Liver Hematopoietic Stem Cell Mobilization into Fetal Bone Marrow in Mice. Stem Cells Int 2020; 2020:8885154. [PMID: 33381191 PMCID: PMC7755487 DOI: 10.1155/2020/8885154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 11/03/2020] [Accepted: 12/04/2020] [Indexed: 11/24/2022] Open
Abstract
Development of hematopoietic stem cells is a complex process, which has been extensively investigated. Hematopoietic stem cells (HSCs) in mouse fetal liver are highly expanded to prepare for mobilization of HSCs into the fetal bone marrow. It is not completely known how the fetal liver niche regulates HSC expansion without loss of self-renewal ability. We reviewed current progress about the effects of fetal liver niche, chemokine, cytokine, and signaling pathways on HSC self-renewal, proliferation, and expansion. We discussed the molecular regulations of fetal HSC expansion in mouse and zebrafish. It is also unknown how HSCs from the fetal liver mobilize, circulate, and reside into the fetal bone marrow niche. We reviewed how extrinsic and intrinsic factors regulate mobilization of fetal liver HSCs into the fetal bone marrow, which provides tools to improve HSC engraftment efficiency during HSC transplantation. Understanding the regulation of fetal liver HSC mobilization into the fetal bone marrow will help us to design proper clinical therapeutic protocol for disease treatment like leukemia during pregnancy. We prospect that fetal cells, including hepatocytes and endothelial and hematopoietic cells, might regulate fetal liver HSC expansion. Components from vascular endothelial cells and bones might also modulate the lodging of fetal liver HSCs into the bone marrow. The current review holds great potential to deeply understand the molecular regulations of HSCs in the fetal liver and bone marrow in mammals, which will be helpful to efficiently expand HSCs in vitro.
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5
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Rajendiran S, Smith-Berdan S, Kunz L, Risolino M, Selleri L, Schroeder T, Forsberg EC. Ubiquitous overexpression of CXCL12 confers radiation protection and enhances mobilization of hematopoietic stem and progenitor cells. Stem Cells 2020; 38:1159-1174. [PMID: 32442338 DOI: 10.1002/stem.3205] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/16/2020] [Indexed: 12/12/2022]
Abstract
C-X-C motif chemokine ligand 12 (CXCL12; aka SDF1α) is a major regulator of a number of cellular systems, including hematopoiesis, where it influences hematopoietic cell trafficking, proliferation, and survival during homeostasis and upon stress and disease. A variety of constitutive, temporal, ubiquitous, and cell-specific loss-of-function models have documented the functional consequences on hematopoiesis upon deletion of Cxcl12. Here, in contrast to loss-of-function experiments, we implemented a gain-of-function approach by generating a doxycycline-inducible transgenic mouse model that enables spatial and temporal overexpression of Cxcl12. We demonstrated that ubiquitous CXCL12 overexpression led to an increase in multipotent progenitors in the bone marrow and spleen. The CXCL12+ mice displayed reduced reconstitution potential as either donors or recipients in transplantation experiments. Additionally, we discovered that Cxcl12 overexpression improved hematopoietic stem and progenitor cell mobilization into the blood, and conferred radioprotection by promoting quiescence. Thus, this new CXCL12+ mouse model provided new insights into major facets of hematopoiesis and serves as a versatile resource for studying CXCL12 function in a variety of contexts.
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Affiliation(s)
- Smrithi Rajendiran
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Stephanie Smith-Berdan
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Leo Kunz
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule Zürich, Basel, Switzerland
| | - Maurizio Risolino
- Program in Craniofacial Biology, Institute of Human Genetics, Eli and Edyth Broad Center of Regeneration Medicine and Stem Cell Research, Departments of Orofacial Sciences and Anatomy, University of California, San Francisco, California, USA
| | - Licia Selleri
- Program in Craniofacial Biology, Institute of Human Genetics, Eli and Edyth Broad Center of Regeneration Medicine and Stem Cell Research, Departments of Orofacial Sciences and Anatomy, University of California, San Francisco, California, USA
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule Zürich, Basel, Switzerland
| | - E Camilla Forsberg
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, USA
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6
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Bourgine PE, Fritsch K, Pigeot S, Takizawa H, Kunz L, Kokkaliaris KD, Coutu DL, Manz MG, Martin I, Schroeder T. Fate Distribution and Regulatory Role of Human Mesenchymal Stromal Cells in Engineered Hematopoietic Bone Organs. iScience 2019; 19:504-513. [PMID: 31442666 PMCID: PMC6710718 DOI: 10.1016/j.isci.2019.08.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 07/01/2019] [Accepted: 08/02/2019] [Indexed: 12/21/2022] Open
Abstract
The generation of humanized ectopic ossicles (hOss) in mice has been proposed as an advanced translational and fundamental model to study the human hematopoietic system. The approach relies on the presence of human bone marrow-derived mesenchymal stromal cells (hMSCs) supporting the engraftment of transplanted human hematopoietic stem and progenitor cells (HSPCs). However, the functional distribution of hMSCs within the humanized microenvironment remains to be investigated. Here, we combined genetic tools and quantitative confocal microscopy to engineer and subsequently analyze hMSCs′ fate and distribution in hOss. Implanted hMSCs reconstituted a humanized environment including osteocytes, osteoblasts, adipocytes, and stromal cells associated with vessels. By imaging full hOss, we identified rare physical interactions between hMSCs and human CD45+/CD34+/CD90+ cells, supporting a functional contact-triggered regulatory role of hMSCs. Our study highlights the importance of compiling quantitative information from humanized organs, to decode the interactions between the hematopoietic and the stromal compartments. Mesenchymal cells can generate human bone organs with tailored molecular signature Mesenchymal cells reconstitute a human niche environment capable of regulating HSPCs
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Affiliation(s)
- Paul E Bourgine
- Department of Biosystems Science and Engineering (D-BSSE), ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland; Tissue Engineering, Department of Biomedicine, University of Basel and University Hospital Basel, 4056 Basel, Switzerland; Department of Clinical Sciences, Lund Stem Cell Center, Lund University, BMC B11, 221 84 Lund, Sweden; Wallenberg Centre for Molecular Medicine, Lund University, Lund, Sweden
| | - Kristin Fritsch
- Department of Hematology, University Hospital Zurich and University of Zurich, 8091 Zurich, Switzerland
| | - Sebastien Pigeot
- Tissue Engineering, Department of Biomedicine, University of Basel and University Hospital Basel, 4056 Basel, Switzerland
| | - Hitoshi Takizawa
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto 860-0811, Japan
| | - Leo Kunz
- Department of Biosystems Science and Engineering (D-BSSE), ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Konstantinos D Kokkaliaris
- Department of Biosystems Science and Engineering (D-BSSE), ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Daniel L Coutu
- Department of Biosystems Science and Engineering (D-BSSE), ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Markus G Manz
- Tissue Engineering, Department of Biomedicine, University of Basel and University Hospital Basel, 4056 Basel, Switzerland.
| | - Ivan Martin
- Tissue Engineering, Department of Biomedicine, University of Basel and University Hospital Basel, 4056 Basel, Switzerland.
| | - Timm Schroeder
- Department of Biosystems Science and Engineering (D-BSSE), ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland.
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7
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Chao HH, Li L, Gao X, Wang C, Yue W. CXCL12 expression in aborted mouse uteri induced by IFN-γ: Potential anti-inflammatory effect involves in endometrial restoration after abortion in mice. Gene 2019; 700:38-46. [PMID: 30898705 DOI: 10.1016/j.gene.2019.02.089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 02/14/2019] [Accepted: 02/26/2019] [Indexed: 02/08/2023]
Abstract
Anti-inflammation is a key process to restore tissue integrity and function. CXCL12 is a homeostasis chemokine, which plays a coordinating role in organogenesis, tumorigenesis and regeneration. In the present study we found that the uterus of abortion mice showed different histo-morphological changes with the development of abortion. The expression of chemokine CXCL12 and its receptor CXCR4 in abortion uterus showed a time-dependent pattern. Compared with normal pregnancy, the expression of CXCL12 and CXCR4 did not change in the uterus of GD7 abortion mice, but increased significantly in the uterus of GD8 and GD10 abortion mice. However, the expression of IFN-γ increased significantly in the uterus of GD7 abortion mice, while there was no significant change detected in GD8 aborted mice uterus. Our further data show that the expression of CXCL12 is not regulated by IFN-γ in endometrial stromal cell culture system in vitro. The treatment of CXCL12 significantly inhibits the expression of IFN-γ in in vitro cultured stromal cells and splenic monocytes. This suggests that CXCL12 may play an anti-inflammatory role in the uterus of abortion mice to promote the process of endometrial restoration after abortion, rather than participate in the process of abortion as a response molecule of IFN-γ.
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Affiliation(s)
- Hu-He Chao
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China.
| | - Lin Li
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China
| | - Xiao Gao
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China
| | - Chengrong Wang
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China
| | - Wentao Yue
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Chaoyang, Beijing 100026, China.
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8
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Loh KP, Ho D, Chiu GNC, Leong DT, Pastorin G, Chow EKH. Clinical Applications of Carbon Nanomaterials in Diagnostics and Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802368. [PMID: 30133035 DOI: 10.1002/adma.201802368] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/28/2018] [Indexed: 06/08/2023]
Abstract
Nanomaterials have the potential to improve how patients are clinically treated and diagnosed. While there are a number of nanomaterials that can be used toward improved drug delivery and imaging, how these nanomaterials confer an advantage over other nanomaterials, as well as current clinical approaches is often application or disease specific. How the unique properties of carbon nanomaterials, such as nanodiamonds, carbon nanotubes, carbon nanofibers, graphene, and graphene oxides, make them promising nanomaterials for a wide range of clinical applications are discussed herein, including treating chemoresistant cancer, enhancing magnetic resonance imaging, and improving tissue regeneration and stem cell banking, among others. Additionally, the strategies for further improving drug delivery and imaging by carbon nanomaterials are reviewed, such as inducing endothelial leakiness as well as applying artificial intelligence toward designing optimal nanoparticle-based drug combination delivery. While the clinical application of carbon nanomaterials is still an emerging field of research, there is substantial preclinical evidence of the translational potential of carbon nanomaterials. Early clinically trial studies are highlighted, further supporting the use of carbon nanomaterials in clinical applications for both drug delivery and imaging.
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Affiliation(s)
- Kian Ping Loh
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, Singapore, 117543, Singapore
| | - Dean Ho
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
- Singapore Institute for Neurotechnology (SINAPSE), Singapore, 117456, Singapore
- Biomedical Institute for Global Health Research and Technology (BIGHEART), Singapore, 117599, Singapore
| | - Gigi Ngar Chee Chiu
- Department of Pharmacy, National University of Singapore, Singapore, 117543, Singapore
| | - David Tai Leong
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Giorgia Pastorin
- Department of Pharmacy, National University of Singapore, Singapore, 117543, Singapore
| | - Edward Kai-Hua Chow
- Cancer Science Institute of Singapore, Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
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9
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Liu YF, Zhang SY, Chen YY, Shi K, Zou B, Liu J, Yang Q, Jiang H, Wei L, Li CZ, Zhao M, Gabrilovich DI, Zhang H, Zhou J. ICAM-1 Deficiency in the Bone Marrow Niche Impairs Quiescence and Repopulation of Hematopoietic Stem Cells. Stem Cell Reports 2018; 11:258-273. [PMID: 29937143 PMCID: PMC6117479 DOI: 10.1016/j.stemcr.2018.05.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 05/24/2018] [Accepted: 05/24/2018] [Indexed: 12/31/2022] Open
Abstract
The bone marrow niche plays a critical role in controlling the fate of hematopoietic stem cells (HSCs) by integrating intrinsic and extrinsic signals. However, the molecular events in the HSC niche remain to be investigated. Here, we report that intercellular adhesion molecule-1 (ICAM-1) maintains HSC quiescence and repopulation capacity in the niche. ICAM-1-deficient mice (ICAM-1−/−) displayed significant expansion of phenotypic long-term HSCs with impaired quiescence, as well as favoring myeloid cell expansion. ICAM-1-deficient HSCs presented normal reconstitution capacity during serial transplantation; however, reciprocal transplantation experiments showed that ICAM-1 deficiency in the niche impaired HSC quiescence and repopulation capacity. In addition, ICAM-1 deletion caused failure to retain HSCs in the bone marrow and changed the expression profile of stroma cell-derived factors, possibly representing the mechanism for defective HSCs in ICAM-1−/− mice. Collectively, these observations identify ICAM-1 as a regulator in the bone marrow niche. ICAM-1 deficiency expands HSC−LT with impaired quiescence and repopulation The defects characterizing HSC−LT in ICAM-1−/− mice are niche cell dependent ICAM-1−/− niche brings about impaired bone marrow retention and homing of HSC−LT ICAM-1 in human stroma cells might affect the progression of myelocytic leukemia
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Affiliation(s)
- Yu-Feng Liu
- Key Laboratory of Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Shao-Ying Zhang
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital, Xi'an Jiaotong University, Xian 710000, China; Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Ying-Ying Chen
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Kun Shi
- Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - Bin Zou
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Jun Liu
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Qiong Yang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Hua Jiang
- Guangzhou Women and Children's Medical Center, Guangzhou 510000, China
| | - Lai Wei
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Chang-Zheng Li
- Key Laboratory for Stem Cells and Tissue Engineering, Sun Yat-sen University, Guangzhou 510080, China
| | - Meng Zhao
- Key Laboratory for Stem Cells and Tissue Engineering, Sun Yat-sen University, Guangzhou 510080, China
| | - Dmitry I Gabrilovich
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Key Laboratory of Tropical Disease Control, Chinese Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China; The Wistar Institute, Philadelphia, PA 19104, USA
| | - Hui Zhang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Key Laboratory of Tropical Disease Control, Chinese Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China.
| | - Jie Zhou
- Key Laboratory of Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; Key Laboratory of Tropical Disease Control, Chinese Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China.
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10
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Yan X, Dai X, He L, Ling X, Shao M, Zhang C, Wang Y, Xiao J, Cai L, Li X, Tan Y. A Novel CXCR4 antagonist enhances angiogenesis via modifying the ischaemic tissue environment. J Cell Mol Med 2017; 21:2298-2307. [PMID: 28374486 PMCID: PMC5618675 DOI: 10.1111/jcmm.13150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 02/07/2017] [Indexed: 01/01/2023] Open
Abstract
Endothelial progenitor cells (EPCs) play a capital role in angiogenesis via directly participating in neo-vessel formation and secreting pro-angiogenic factors. Stromal cell-derived factor 1 (SDF-1) and its receptor CXCR4 play a critical role in the retention and quiescence of EPCs within its niche in the bone marrow. Disturbing the interaction between SDF-1 and CXCR4 is an effective strategy for EPC mobilization. We developed a novel CXCR4 antagonist P2G, a mutant protein of SDF-1β with high antagonistic activity against CXCR4 and high potency in enhancing ischaemic angiogenesis and blood perfusion. However, its direct effects on ischaemic tissue remain largely unknown. In this study, P2G was found to possess a robust capability to promote EPC infiltration and incorporation in neo-vessels, enhance the expression and function of pro-angiogenic factors, such as SDF-1, vascular endothelial growth factor and matrix metalloprotein-9, and activate cell signals involved in angiogenesis, such as proliferating cell nuclear antigen, protein kinase B (Akt), extracellular regulated protein kinases and mammalian target of rapamycin, in ischaemic tissue. Moreover, P2G can attenuate fibrotic remodelling to facilitate the recovery of ischaemic tissue. The capability of P2G in direct augmenting ischaemic environment for angiogenesis suggests that it is a potential candidate for the therapy of ischaemia diseases.
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Affiliation(s)
- Xiaoqing Yan
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, USA.,Chinese-American Pediatric Research Institute at the First Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaozhen Dai
- Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, USA.,School of Biomedicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Luqing He
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China
| | - Xiao Ling
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China
| | - Minglong Shao
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China
| | - Chi Zhang
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China
| | - Yuehui Wang
- Department of Geriatric Medicine, the first hospital of Jilin university, Changchun, Jilin, China
| | - Jian Xiao
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China
| | - Lu Cai
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, USA.,Chinese-American Pediatric Research Institute at the First Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaokun Li
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China
| | - Yi Tan
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, USA.,Chinese-American Pediatric Research Institute at the First Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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11
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Pivotal Cytoprotective Mediators and Promising Therapeutic Strategies for Endothelial Progenitor Cell-Based Cardiovascular Regeneration. Stem Cells Int 2016; 2016:8340257. [PMID: 28090210 PMCID: PMC5206447 DOI: 10.1155/2016/8340257] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/11/2016] [Accepted: 10/27/2016] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases (CVDs), including atherosclerosis, stroke, and myocardial infarction, is a major cause of death worldwide. In aspects of cell therapy against CVD, it is generally accepted that endothelial progenitor cells (EPCs) are potent neovascular modulators in ischemic tissues. In response to ischemic injury signals, EPCs located in a bone marrow niche migrate to injury sites and form new vessels by secreting various vasculogenic factors including VEGF, SDF-1, and FGF, as well as by directly differentiating into endothelial cells. Nonetheless, in ischemic tissues, most of engrafted EPCs do not survive under harsh ischemic conditions and nutrient depletion. Therefore, an understanding of diverse EPC-related cytoprotective mediators underlying EPC homeostasis in ischemic tissues may help to overcome current obstacles for EPC-mediated cell therapy for CVDs. Additionally, to enhance EPC's functional capacity at ischemic sites, multiple strategies for cell survival should be considered, that is, preconditioning of EPCs with function-targeting drugs including natural compounds and hormones, virus mediated genetic modification, combined therapy with other stem/progenitor cells, and conglomeration with biomaterials. In this review, we discuss multiple cytoprotective mediators of EPC-based cardiovascular repair and propose promising therapeutic strategies for the treatment of CVDs.
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Weng L, Hu X, Kumar B, Garcia M, Todorov I, Jung X, Marcucci G, Forman SJ, Chen CC. Identification of a CD133-CD55- population functions as a fetal common skeletal progenitor. Sci Rep 2016; 6:38632. [PMID: 27929130 PMCID: PMC5144148 DOI: 10.1038/srep38632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 11/10/2016] [Indexed: 01/19/2023] Open
Abstract
In this study, we identified a CD105+CD90.1−CD133−CD55− (CD133−CD55−) population in the fetal skeletal element that can generate bone and bone marrow. Besides osteoblasts and chondrocytes, the CD133−CD55− common progenitors can give rise to marrow reticular stromal cells and perivascular mesenchymal progenitors suggesting they function as the fetal common skeletal progenitor. Suppression of CXCL12 and Kitl expression in CD133−CD55− common progenitors severely disrupted the BM niche formation but not bone generation. Thus, CD133−CD55− common progenitors are the main source of CXCL12 and Kitl producing cells in the developing marrow.
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Affiliation(s)
- Lihong Weng
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA.,Departments of Cancer Immunotherapeutic and Immunology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Xingbin Hu
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 7100032, P.R. China
| | - Bijender Kumar
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA
| | - Mayra Garcia
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA
| | - Ivan Todorov
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Xiaoman Jung
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Guido Marcucci
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA
| | - Stephen J Forman
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA.,Departments of Cancer Immunotherapeutic and Immunology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Irell &Manella Graduate School of Biological Sciences, City of Hope, Duarte, CA 91010, USA
| | - Ching-Cheng Chen
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA.,Irell &Manella Graduate School of Biological Sciences, City of Hope, Duarte, CA 91010, USA
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Wharton’s Jelly Mesenchymal Stromal Cells as a Feeder Layer for the Ex Vivo Expansion of Hematopoietic Stem and Progenitor Cells: a Review. Stem Cell Rev Rep 2016; 13:35-49. [DOI: 10.1007/s12015-016-9702-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Uckelmann H, Blaszkiewicz S, Nicolae C, Haas S, Schnell A, Wurzer S, Wagener R, Aszodi A, Essers MAG. Extracellular matrix protein Matrilin-4 regulates stress-induced HSC proliferation via CXCR4. J Exp Med 2016; 213:1961-71. [PMID: 27573814 PMCID: PMC5030798 DOI: 10.1084/jem.20151713] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 07/07/2016] [Indexed: 01/20/2023] Open
Abstract
Essers et al. find that the extracellular matrix adaptor protein Matrilin-4 confers a resistance to stress stimuli in hematopoietic stem cells. During homeostasis, hematopoietic stem cells (HSCs) are mostly kept in quiescence with only minor contribution to steady-state hematopoiesis. However, in stress situations such as infection, chemotherapy, or transplantation, HSCs are forced to proliferate and rapidly regenerate compromised hematopoietic cells. Little is known about the processes regulating this stress-induced proliferation and expansion of HSCs and progenitors. In this study, we identified the extracellular matrix (ECM) adaptor protein Matrilin-4 (Matn4) as an important negative regulator of the HSC stress response. Matn4 is highly expressed in long-term HSCs; however, it is not required for HSC maintenance under homeostasis. In contrast, Matn4 is strongly down-regulated in HSCs in response to proliferative stress, and Matn4 deficiency results in increased proliferation and expansion of HSCs and progenitors after myelosuppressive chemotherapy, inflammatory stress, and transplantation. This enhanced proliferation is mediated by a transient down-regulation of CXCR4 in Matn4−/− HSCs upon stress, allowing for a more efficient expansion of HSCs. Thus, we have uncovered a novel link between the ECM protein Matn4 and cytokine receptor CXCR4 involved in the regulation of HSC proliferation and expansion under acute stress.
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Affiliation(s)
- Hannah Uckelmann
- HSCs and Stress Group, Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany Heidelberg Institute for Stem Cell Technologies and Experimental Medicine gGmbH, 69120 Heidelberg, Germany
| | - Sandra Blaszkiewicz
- HSCs and Stress Group, Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany Heidelberg Institute for Stem Cell Technologies and Experimental Medicine gGmbH, 69120 Heidelberg, Germany
| | - Claudia Nicolae
- Department of Molecular Medicine, Max Planck Institute for Biochemistry, 82152 Planegg, Germany
| | - Simon Haas
- HSCs and Stress Group, Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany Heidelberg Institute for Stem Cell Technologies and Experimental Medicine gGmbH, 69120 Heidelberg, Germany
| | - Alexandra Schnell
- HSCs and Stress Group, Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany Heidelberg Institute for Stem Cell Technologies and Experimental Medicine gGmbH, 69120 Heidelberg, Germany
| | - Stephan Wurzer
- HSCs and Stress Group, Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany Heidelberg Institute for Stem Cell Technologies and Experimental Medicine gGmbH, 69120 Heidelberg, Germany
| | - Raimund Wagener
- Center for Biochemistry, Medical Faculty and Center for Molecular Medicine (CMMC), University of Cologne, 50931 Cologne, Germany
| | - Attila Aszodi
- Department of Molecular Medicine, Max Planck Institute for Biochemistry, 82152 Planegg, Germany Department of General, Trauma, Hand, and Plastic Surgery, Ludwig-Maximilians University, 80539 Munich, Germany
| | - Marieke Alida Gertruda Essers
- HSCs and Stress Group, Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany Heidelberg Institute for Stem Cell Technologies and Experimental Medicine gGmbH, 69120 Heidelberg, Germany
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Smad4 in osteoblasts exerts a differential impact on HSC fate depending on osteoblast maturation stage. Leukemia 2016; 30:2039-2046. [PMID: 27271228 DOI: 10.1038/leu.2016.133] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 04/22/2016] [Accepted: 04/27/2016] [Indexed: 12/20/2022]
Abstract
Osteoblasts (OBs) are indispensable for the maintenance of hematopoietic stem cells (HSCs) in the bone marrow microenvironment. Here we investigated how Smad4 modulates HSC fate at distinct stages of OB development. For this, we conditionally knocked out Smad4 in cells expressing type I collagen (Col1a1) and osteocalcin (OC), respectively. Col1a1-expressing OBs were widely present in both the trabecular and cortical compartment, whereas OC-expressing OBs were predominantly located in the cortical compartment. HSCs from Col1a1 mutants displayed senescence-associated phenotypes. OC mutants did not exhibit HSC senescence-related phenotypes, but instead showed preferential HSC death. Of note, stromal cell-derived factor 1 expression was lower in Col1a1 mutants than control littermates, suggesting potential impairment of CXCR4-CXCL12-mediated HSC retention. Disruption of the CXCR4-CXCL12 axis by AMD3100 administration led to an increase in the senescence-associated β-galactosidase activity and low competitive potential. Collectively, our findings indicate that deletion of Smad4 in OBs differentially modulates HSC fate in a stage-dependent manner.
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Bari S, Chu PPY, Lim A, Fan X, Bunte RM, Li S, Ghosh S, Chiu GNC, Hwang WYK. Mitochondrial superoxide reduction and cytokine secretion skewing by carbon nanotube scaffolds enhance ex vivo expansion of human cord blood hematopoietic progenitors. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1643-56. [DOI: 10.1016/j.nano.2015.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 05/27/2015] [Accepted: 06/06/2015] [Indexed: 01/25/2023]
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Bari S, Seah KKH, Poon Z, Cheung AMS, Fan X, Ong SY, Li S, Koh LP, Hwang WYK. Expansion and homing of umbilical cord blood hematopoietic stem and progenitor cells for clinical transplantation. Biol Blood Marrow Transplant 2014; 21:1008-19. [PMID: 25555449 DOI: 10.1016/j.bbmt.2014.12.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 12/22/2014] [Indexed: 12/26/2022]
Abstract
The successful expansion of hematopoietic stem and progenitor cells (HSPCs) from umbilical cord blood (UCB) for transplantation could revolutionize clinical practice by improving transplantation-related outcomes and making available UCB units that have suboptimal cell doses for transplantation. New cytokine combinations appear able to promote HSPC growth with minimal differentiation into mature precursors and new agents, such as insulin-like growth factor-binding protein 2, are being used in clinical trials. Molecules that simulate the HSPC niche, such as Notch ligand, have also shown promise. Further improvements have been made with the use of mesenchymal stromal cells, which have made possible UCB expansion without a potentially deleterious prior CD34/CD133 cell selection step. Chemical molecules, such as copper chelators, nicotinamide, and aryl hydrocarbon antagonists, have shown excellent outcomes in clinical studies. The use of bioreactors could further add to HSPC studies in future. Drugs that could improve HSPC homing also appear to have potential in improving engraftment times in UCB transplantation. Technologies to expand HSPC from UCB and to enhance the homing of these cells appear to have attained the goal of accelerating hematopoietic recovery. Further discoveries and clinical studies are likely to make the goal of true HSPC expansion a reality for many applications in future.
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Affiliation(s)
- Sudipto Bari
- Department of Hematology, Singapore General Hospital, Singapore; Department of Pharmacy, National University of Singapore, Singapore
| | | | - Zhiyong Poon
- BioSystems and Micromechanics, Singapore-MIT Alliance for Research and Technology, Singapore
| | | | - Xiubo Fan
- Department of Clinical Research, Singapore General Hospital, Singapore
| | - Shin-Yeu Ong
- Department of Hematology, Singapore General Hospital, Singapore
| | - Shang Li
- Cancer and Stem Cell Biology, Duke-NUS Graduate Medical School, Singapore
| | - Liang Piu Koh
- Department of Hematology-Oncology, National University Cancer Institute, Singapore
| | - William Ying Khee Hwang
- Department of Hematology, Singapore General Hospital, Singapore; Cancer and Stem Cell Biology, Duke-NUS Graduate Medical School, Singapore; Singapore Cord Blood Bank, Singapore.
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Dimova N, Wysoczynski M, Rokosh G. Stromal cell derived factor-1α promotes C-Kit+ cardiac stem/progenitor cell quiescence through casein kinase 1α and GSK3β. Stem Cells 2014; 32:487-99. [PMID: 24038789 DOI: 10.1002/stem.1534] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/09/2013] [Accepted: 07/22/2013] [Indexed: 11/11/2022]
Abstract
A population of c-kit(+) cardiac stem/progenitor cells (CSPC) has been identified in the heart and shown to contribute to myocardial regeneration after infarction. Previously, we have shown the chemokine, stromal cell derived factor 1α (SDF1) is necessary for the myocardial response to infarction where chronic infusion of the CXCR4 antagonist, AMD3100, exacerbated MI. Notably, AMD3100 increased CSPC proliferation. The effect of SDF1 on CSPC proliferation was further investigated in primary cultures of magnetically sorted c-kit(+) CSPCs. SDF1 facilitated CSPC quiescence by blocking cell cycle progression at the G0 to G1 transition. SDF1 decreased casein kinase 1α (CK1α) consequently attenuating β-catenin phosphorylation, destabilization, and degradation. Increased levels of β-catenin with SDF1 were effective, increasing TCF/LEF reporter activity. SDF downregulation of CK1α was dependent on proteasomal degradation and decreased mRNA expression. CK1α siRNA knockdown verified SDF1-dependent CSPC quiescence requires CK1α downregulation and stablilization of β-catenin. Conversely, β-catenin knockdown increased CSPC proliferation. SDF1 also increased GSK3β Y216 phosphorylation responsible for increased activity. SDF1 mediated CK1α downregulation and increase in GSK3β activity affected cell cycle through Bmi-1 downregulation, increased cyclin D1 phosphorylation, and decreased cyclin D1 levels. In conclusion, SDF1 exerts a quiescent effect on resident c-kit(+) CSPCs by decreasing CK1α levels, increasing GSK3β activity, stabilizing β-catenin, and affecting regulation of the cell cycle through Bmi-1 and cyclin D1. SDF1-dependent quiescence is an important factor in stem and progenitor cell preservation under basal conditions, however, with stress or injury in which SDF1 is elevated, quiescence may limit expansion and contribution to myocardial regeneration.
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Affiliation(s)
- Neviana Dimova
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, University of Louisville, Louisville, Kentucky, USA
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Cao H, Oteiza A, Nilsson SK. Understanding the role of the microenvironment during definitive hemopoietic development. Exp Hematol 2013; 41:761-8. [DOI: 10.1016/j.exphem.2013.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 06/17/2013] [Accepted: 06/17/2013] [Indexed: 01/29/2023]
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FGF-2 expands murine hematopoietic stem and progenitor cells via proliferation of stromal cells, c-Kit activation, and CXCL12 down-regulation. Blood 2012; 120:1843-55. [DOI: 10.1182/blood-2011-11-394692] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Abstract
Cytokine-induced expansion of hematopoietic stem and progenitor cells (HSPCs) is not fully understood. In the present study, we show that whereas steady-state hematopoiesis is normal in basic fibroblast growth factor (FGF-2)–knockout mice, parathyroid hormone stimulation and myeloablative treatments failed to induce normal HSPC proliferation and recovery. In vivo FGF-2 treatment expanded stromal cells, including perivascular Nestin+ supportive stromal cells, which may facilitate HSPC expansion by increasing SCF and reducing CXCL12 via mir-31 up-regulation. FGF-2 predominantly expanded a heterogeneous population of undifferentiated HSPCs, preserving and increasing durable short- and long-term repopulation potential. Mechanistically, these effects were mediated by c-Kit receptor activation, STAT5 phosphorylation, and reduction of reactive oxygen species levels. Mice harboring defective c-Kit signaling exhibited abrogated HSPC expansion in response to FGF-2 treatment, which was accompanied by elevated reactive oxygen species levels. The results of the present study reveal a novel mechanism underlying FGF-2–mediated in vivo expansion of both HSPCs and their supportive stromal cells, which may be used to improve stem cell engraftment after clinical transplantation.
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