1
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Tian JS, Tay A. Progress on Electro-Enhancement of Cell Manufacturing. SMALL METHODS 2024; 8:e2301281. [PMID: 38059759 DOI: 10.1002/smtd.202301281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/09/2023] [Indexed: 12/08/2023]
Abstract
With the long persistence of complex, chronic diseases in society, there is increasing motivation to develop cells as living medicine to treat diseases ranging from cancer to wounds. While cell therapies can significantly impact healthcare, the shortage of starter cells meant that considerable raw materials must be channeled solely for cell expansion, leading to expensive products with long manufacturing time which can prevent accessibility by patients who either cannot afford the treatment or have highly aggressive diseases and cannot wait that long. Over the last three decades, there has been increasing knowledge on the effects of electrical modulation on proliferation, but to the best of the knowledge, none of these studies went beyond how electro-control of cell proliferation may be extended to enhance industrial scale cell manufacturing. Here, this review is started by discussing the importance of maximizing cell yield during manufacturing before comparing strategies spanning biomolecular/chemical/physical to modulate cell proliferation. Next, the authors describe how factors governing invasive and non-invasive electrical stimulation (ES) including capacitive coupling electric field may be modified to boost cell manufacturing. This review concludes by describing what needs to be urgently performed to bridge the gap between academic investigation of ES to industrial applications.
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Affiliation(s)
- Johann Shane Tian
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Andy Tay
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
- NUS Tissue Engineering Program, National University of Singapore, Singapore, 117510, Singapore
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Xu L, Zeng Q, Liang L, Yang Z, Qu M, Li H, Zhang B, Zhang J, Yuan X, Chen L, Fan Z, He L, Nan X, Yue W, Xie X, Pei X. Generation of Rh D-negative blood using CRISPR/Cas9. Cell Prolif 2023; 56:e13486. [PMID: 37096780 PMCID: PMC10623963 DOI: 10.1111/cpr.13486] [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] [Received: 01/04/2023] [Revised: 03/27/2023] [Accepted: 04/12/2023] [Indexed: 04/26/2023] Open
Abstract
Blood supply shortages, especially the shortage of rare blood types, threaten the current medical system. Research on stem cells has shed light on in vitro blood cell manufacturing. The in vitro production of universal red blood cells (RBCs) from induced pluripotent stem cells (iPSCs) has become the focus of transfusion medicine. To obtain O-type Rh D-negative blood, we developed O-type Rh D-negative human (h)iPSCs using homology-directed repair (HDR)-based CRISPR/Cas9. HuAiPSCs derived from human umbilical arterial endothelial cells and showing haematopoietic differentiation preferences were selected for gene modification. Guide RNAs (gRNAs) were selected, and a donor template flanked by gRNA-directed homologous arms was set to introduce a premature stop code to RHD exon 2. CRISPR/Cas9 gene editing has resulted in the successful generation of an RHD knockout cell line. The HuAiPSC-A1-RHD-/- cell line was differentiated into haematopoietic stem/progenitor cells and subsequently into erythrocytes in the oxygen concentration-optimized differentiation scheme. HuAiPSC-A1-RHD-/- derived erythrocytes remained positive for the RBC markers CD71 and CD235a. These erythrocytes did not express D antigen and did not agglutinate in the presence of anti-Rh D reagents. In conclusion, taking the priority of haematopoietic preference hiPSCs, the HDR-based CRISPR/Cas9 system and optimizing the erythroid-lineage differentiation protocol, we first generated O-type Rh D-negative universal erythrocytes from RHD knockout HuAiPSCs. Its production is highly efficient and shows great potential for clinical applications.
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Affiliation(s)
- Lei Xu
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
| | - Quan Zeng
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Liqing Liang
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
| | - Zhou Yang
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
| | - Mingyi Qu
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Huilin Li
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
| | - Bowen Zhang
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Jing Zhang
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Xin Yuan
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
| | - Lin Chen
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Zeng Fan
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Lijuan He
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
- Institute of Health Service and Transfusion MedicineBeijingChina
| | - Xue Nan
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Wen Yue
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Xiaoyan Xie
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine LabBeijing Institute of Radiation MedicineBeijingChina
- South China Research Center for Stem Cell & Regenerative MedicineGuangzhouChina
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Dausinas Ni P, Hartman M, Slack J, Basile C, Liu S, Wan J, O'Leary HA. Novel differential calcium regulation of hematopoietic stem and progenitor cells under physiological low oxygen conditions. J Cell Physiol 2023. [PMID: 37051890 DOI: 10.1002/jcp.30942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 11/28/2022] [Accepted: 12/23/2022] [Indexed: 04/14/2023]
Abstract
Low oxygen bone marrow (BM) niches (~1%-4% low O2 ) provide critical signals for hematopoietic stem/progenitor cells (HSC/HSPCs). Our presented data are the first to investigate live, sorted HSC/HSPCs in their native low O2 conditions. Transcriptional and proteomic analysis uncovered differential Ca2+ regulation that correlated with overlapping phenotypic populations consisting of robust increases of cytosolic and mitochondrial Ca2+ , ABC transporter (ABCG2) expression and sodium/hydrogen exchanger (NHE1) expression in live, HSC/HSPCs remaining in constant low O2. We identified a novel Ca2+ high population in HSPCs predominantly detected in low O2 that displayed enhanced frequency of phenotypic LSK/LSKCD150 in low O2 replating assays compared to Ca2+ low populations. Inhibition of the Ca2+ regulator NHE1 (Cariporide) resulted in attenuation of both the low O2 induced Ca2+ high population and subsequent enhanced maintenance of phenotypic LSK and LSKCD150 during low O2 replating. These data reveal multiple levels of differential Ca2+ regulation in low O2 resulting in phenotypic, signaling, and functional consequences in HSC/HSPCs.
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Affiliation(s)
- Paige Dausinas Ni
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Melissa Hartman
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jacob Slack
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Christopher Basile
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Sheng Liu
- Department of Medical and Molecular Genetics, Center of Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jun Wan
- Department of Medical and Molecular Genetics, Center of Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Heather A O'Leary
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, Ohio, USA
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Abe K, Ikeda S, Nara M, Kitadate A, Tagawa H, Takahashi N. Hypoxia-induced oxidative stress promotes therapy resistance via upregulation of heme oxygenase-1 in multiple myeloma. Cancer Med 2023; 12:9709-9722. [PMID: 36775962 PMCID: PMC10166934 DOI: 10.1002/cam4.5679] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/21/2022] [Accepted: 01/26/2023] [Indexed: 02/14/2023] Open
Abstract
BACKGROUND Multiple myeloma (MM) is a hematopoietic malignancy for which proteasome inhibitors have become available in recent years. However, many patients develop resistance to these drugs during treatment. Therefore, it is important to elucidate the mechanisms underlying resistance acquisition by proteasome inhibitors. Side population (SP) cells, which have a high drug efflux capacity and hypoxic responses in the microenvironment have both provided important insights into drug resistance in MM; however, little is known about the characteristics of SP cells in hypoxic microenvironments. METHODS We performed cDNA microarray analysis for SP and non-SP obtained from RPMI-8226 and KMS-11 cell lines cultured for 48 h in normoxic and hypoxic conditions (1% O2 ). Genes specifically upregulated in hypoxic SP were examined. RESULTS Our comprehensive gene expression analysis identified HMOX1, BACH2, and DUX4 as protein-coding genes that are specifically highly expressed in SP cells under hypoxic conditions. We have shown that HMOX1/heme oxygenase-1 (HMOX1/HO-1) is induced by hypoxia-inducible reactive oxygen species (ROS) and reduces ROS levels. Furthermore, we found that HMOX1 contributes to hypoxia-induced resistance to proteasome inhibitors in vitro and in vivo. Excessive ROS levels synergistically enhance bortezomib sensitivity. In clinical datasets, HMOX1 had a strong and significantly positive correlation with MAFB but not MAF. Interestingly, hypoxic stimulation increased MAFB/MafB expression in myeloma cells; in addition, the knockdown of MAFB under hypoxic conditions suppressed HMOX1 expression. CONCLUSION These results suggest that the hypoxia-ROS-HMOX1 axis and hypoxia-induced MafB may be important mechanisms of proteasome inhibitor resistance in hypoxic microenvironments.
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Affiliation(s)
- Ko Abe
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
| | - Sho Ikeda
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
| | - Miho Nara
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
| | - Akihiro Kitadate
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
| | - Hiroyuki Tagawa
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
| | - Naoto Takahashi
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
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Mohd Yunus MH, Lee Y, Nordin A, Chua KH, Bt Hj Idrus R. Remodeling Osteoarthritic Articular Cartilage under Hypoxic Conditions. Int J Mol Sci 2022; 23:ijms23105356. [PMID: 35628163 PMCID: PMC9141680 DOI: 10.3390/ijms23105356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/07/2022] [Accepted: 05/08/2022] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is one of the leading joint diseases induced by abnormalities or inflammation in the synovial membrane and articular cartilage, causing severe pain and disability. Along with the cartilage malfunction, imbalanced oxygen uptake occurs, changing chondrocytes into type I collagen- and type X collagen-producing dedifferentiated cells, contributing to OA progression. However, mounting evidence suggests treating OA by inducing a hypoxic environment in the articular cartilage, targeting the inhibition of several OA-related pathways to bring chondrocytes into a normal state. This review discusses the implications of OA-diseased articular cartilage on chondrocyte phenotypes and turnover and debates the hypoxic mechanism of action. Furthermore, this review highlights the new understanding of OA, provided by tissue engineering and a regenerative medicine experimental design, modeling the disease into diverse 2D and 3D structures and investigating hypoxia and hypoxia-inducing biomolecules and potential cell therapies. This review also reports the mechanism of hypoxic regulation and highlights the importance of activating and stabilizing the hypoxia-inducible factor and related molecules to protect chondrocytes from mitochondrial dysfunction and apoptosis occurring under the influence of OA.
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Affiliation(s)
- Mohd Heikal Mohd Yunus
- Department of Physiology, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (K.H.C.); (R.B.H.I.)
- Correspondence: ; Tel.: +603-9145-8624
| | - Yemin Lee
- MedCentral Consulting, Jalan 27/117A, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia; (Y.L.); (A.N.)
| | - Abid Nordin
- MedCentral Consulting, Jalan 27/117A, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia; (Y.L.); (A.N.)
| | - Kien Hui Chua
- Department of Physiology, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (K.H.C.); (R.B.H.I.)
| | - Ruszymah Bt Hj Idrus
- Department of Physiology, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (K.H.C.); (R.B.H.I.)
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Dausinas Ni P, Basile C, Junge C, Hartman M, O’Leary HA. Hypoxia and Hematopoiesis. CURRENT STEM CELL REPORTS 2022. [DOI: 10.1007/s40778-021-00203-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Islami M, Soleimanifar F. A Review of Evaluating Hematopoietic Stem Cells Derived from Umbilical Cord Blood's Expansion and Homing. Curr Stem Cell Res Ther 2020; 15:250-262. [PMID: 31976846 DOI: 10.2174/1574888x15666200124115444] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/15/2019] [Accepted: 12/25/2019] [Indexed: 12/14/2022]
Abstract
Transplantation of hematopoietic stem cells (HSCs) derived from umbilical cord blood (UCB) has been taken into account as a therapeutic approach in patients with hematologic malignancies. Unfortunately, there are limitations concerning HSC transplantation (HSCT), including (a) low contents of UCB-HSCs in a single unit of UCB and (b) defects in UCB-HSC homing to their niche. Therefore, delays are observed in hematopoietic and immunologic recovery and homing. Among numerous strategies proposed, ex vivo expansion of UCB-HSCs to enhance UCB-HSC dose without any differentiation into mature cells is known as an efficient procedure that is able to alter clinical treatments through adjusting transplantation-related results and making them available. Accordingly, culture type, cytokine combinations, O2 level, co-culture with mesenchymal stromal cells (MSCs), as well as gene manipulation of UCB-HSCs can have effects on their expansion and growth. Besides, defects in homing can be resolved by exposing UCB-HSCs to compounds aimed at improving homing. Fucosylation of HSCs before expansion, CXCR4-SDF-1 axis partnership and homing gene involvement are among strategies that all depend on efficiency, reasonable costs, and confirmation of clinical trials. In general, the present study reviewed factors improving the expansion and homing of UCB-HSCs aimed at advancing hematopoietic recovery and expansion in clinical applications and future directions.
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Affiliation(s)
- Maryam Islami
- Department of Biotechnology, School of Medicine, Alborz University of Medical Science, Karaj, Iran
| | - Fatemeh Soleimanifar
- Department of Biotechnology, School of Medicine, Alborz University of Medical Science, Karaj, Iran
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8
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Ngo MT, Harley BAC. Angiogenic biomaterials to promote therapeutic regeneration and investigate disease progression. Biomaterials 2020; 255:120207. [PMID: 32569868 PMCID: PMC7396313 DOI: 10.1016/j.biomaterials.2020.120207] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 02/06/2023]
Abstract
The vasculature is a key component of the tissue microenvironment. Traditionally known for its role in providing nutrients and oxygen to surrounding cells, the vasculature is now also acknowledged to provide signaling cues that influence biological outcomes in regeneration and disease. These cues come from the cells that comprise vasculature, as well as the dynamic biophysical and biochemical properties of the surrounding extracellular matrix that accompany vascular development and remodeling. In this review, we illustrate the larger role of the vasculature in the context of regenerative biology and cancer progression. We describe cellular, biophysical, biochemical, and metabolic components of vascularized microenvironments. Moreover, we provide an overview of multidimensional angiogenic biomaterials that have been developed to promote therapeutic vascularization and regeneration, as well as to mimic elements of vascularized microenvironments as a means to uncover mechanisms by which vasculature influences cancer progression and therapy.
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Affiliation(s)
- Mai T Ngo
- Dept. Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Brendan A C Harley
- Dept. Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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9
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Huang X, Guo B, Capitano M, Broxmeyer HE. Past, present, and future efforts to enhance the efficacy of cord blood hematopoietic cell transplantation. F1000Res 2019; 8. [PMID: 31723413 PMCID: PMC6823900 DOI: 10.12688/f1000research.20002.1] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/23/2019] [Indexed: 12/22/2022] Open
Abstract
Cord blood (CB) has been used as a viable source of hematopoietic stem cells (HSCs) and hematopoietic progenitor cells (HPCs) in over 35,000 clinical hematopoietic cell transplantation (HCT) efforts to treat the same variety of malignant and non-malignant disorders treated by bone marrow (BM) and mobilized peripheral blood (mPB) using HLA-matched or partially HLA-disparate related or unrelated donor cells for adult and children recipients. This review documents the beginning of this clinical effort that started in the 1980’s, the pros and cons of CB HCT compared to BM and mPB HCT, and recent experimental and clinical efforts to enhance the efficacy of CB HCT. These efforts include means for increasing HSC numbers in single CB collections, expanding functional HSCs
ex vivo, and improving CB HSC homing and engraftment, all with the goal of clinical translation. Concluding remarks highlight the need for phase I/II clinical trials to test the experimental procedures that are described, either alone or in combination.
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Affiliation(s)
- Xinxin Huang
- Xuhui Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Bin Guo
- Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Maegan Capitano
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202-5181, USA
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202-5181, USA
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Keeley TP, Mann GE. Defining Physiological Normoxia for Improved Translation of Cell Physiology to Animal Models and Humans. Physiol Rev 2019; 99:161-234. [PMID: 30354965 DOI: 10.1152/physrev.00041.2017] [Citation(s) in RCA: 179] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The extensive oxygen gradient between the air we breathe (Po2 ~21 kPa) and its ultimate distribution within mitochondria (as low as ~0.5-1 kPa) is testament to the efforts expended in limiting its inherent toxicity. It has long been recognized that cell culture undertaken under room air conditions falls short of replicating this protection in vitro. Despite this, difficulty in accurately determining the appropriate O2 levels in which to culture cells, coupled with a lack of the technology to replicate and maintain a physiological O2 environment in vitro, has hindered addressing this issue thus far. In this review, we aim to address the current understanding of tissue Po2 distribution in vivo and summarize the attempts made to replicate these conditions in vitro. The state-of-the-art techniques employed to accurately determine O2 levels, as well as the issues associated with reproducing physiological O2 levels in vitro, are also critically reviewed. We aim to provide the framework for researchers to undertake cell culture under O2 levels relevant to specific tissues and organs. We envisage that this review will facilitate a paradigm shift, enabling translation of findings under physiological conditions in vitro to disease pathology and the design of novel therapeutics.
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Affiliation(s)
- Thomas P Keeley
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, Faculty of Life Sciences and Medicine, King's College London , London , United Kingdom
| | - Giovanni E Mann
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, Faculty of Life Sciences and Medicine, King's College London , London , United Kingdom
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11
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de Almeida Fuzeta M, de Matos Branco AD, Fernandes-Platzgummer A, da Silva CL, Cabral JMS. Addressing the Manufacturing Challenges of Cell-Based Therapies. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2019; 171:225-278. [PMID: 31844924 DOI: 10.1007/10_2019_118] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Exciting developments in the cell therapy field over the last decades have led to an increasing number of clinical trials and the first cell products receiving marketing authorization. In spite of substantial progress in the field, manufacturing of cell-based therapies presents multiple challenges that need to be addressed in order to assure the development of safe, efficacious, and cost-effective cell therapies.The manufacturing process of cell-based therapies generally requires tissue collection, cell isolation, culture and expansion (upstream processing), cell harvest, separation and purification (downstream processing), and, finally, product formulation and storage. Each one of these stages presents significant challenges that have been the focus of study over the years, leading to innovative and groundbreaking technological advances, as discussed throughout this chapter.Delivery of cell-based therapies relies on defining product targets while controlling process variable impact on cellular features. Moreover, commercial viability is a critical issue that has had damaging consequences for some therapies. Implementation of cost-effectiveness measures facilitates healthy process development, potentially being able to influence end product pricing.Although cell-based therapies represent a new level in bioprocessing complexity in every manufacturing stage, they also show unprecedented levels of therapeutic potential, already radically changing the landscape of medical care.
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Affiliation(s)
- Miguel de Almeida Fuzeta
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - André Dargen de Matos Branco
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Ana Fernandes-Platzgummer
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Cláudia Lobato da Silva
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.
| | - Joaquim M S Cabral
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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12
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Elkhenany H, AlOkda A, El-Badawy A, El-Badri N. Tissue regeneration: Impact of sleep on stem cell regenerative capacity. Life Sci 2018; 214:51-61. [PMID: 30393021 DOI: 10.1016/j.lfs.2018.10.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 10/23/2018] [Accepted: 10/25/2018] [Indexed: 12/31/2022]
Abstract
The circadian rhythm orchestrates many cellular functions, such as cell division, cell migration, metabolism and numerous intracellular biological processes. The physiological changes during sleep are believed to promote a suitable microenvironment for stem cells to proliferate, migrate and differentiate. These effects are mediated either directly by circadian clock genes or indirectly via hormones and cytokines. Hormones, such as melatonin and cortisol, are secreted in response to neural optic signals and act in harmony to regulate many biological functions during sleep. Herein, we correlate the effects of the main circadian genes on the expression of certain stem cell genes responsible for the regeneration of different tissues, including bone, cartilage, skin, and intestine. We also review the effects of different hormones and cytokines on stem cell activation or suppression and their relationship to the day/night cycle. The correlation of circadian rhythm with tissue regeneration could have implications in understanding the biology of sleep and tissue regeneration and in enhancing the efficacy and timing of surgical procedures.
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Affiliation(s)
- Hoda Elkhenany
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt; Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, 22785, Egypt
| | - Abdelrahman AlOkda
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt
| | - Ahmed El-Badawy
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt
| | - Nagwa El-Badri
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt.
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13
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Bae HC, Park HJ, Wang SY, Yang HR, Lee MC, Han HS. Hypoxic condition enhances chondrogenesis in synovium-derived mesenchymal stem cells. Biomater Res 2018; 22:28. [PMID: 30275971 PMCID: PMC6158840 DOI: 10.1186/s40824-018-0134-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/29/2018] [Indexed: 12/21/2022] Open
Abstract
Background The chondrogenic differentiation of mesenchymal stem cells (MSCs) is regulated by many factors, including oxygen tensions, growth factors, and cytokines. Evidences have suggested that low oxygen tension seems to be an important regulatory factor in the proliferation and chondrogenic differentiation in various MSCs. Recent studies report that synovium-derived mesenchymal stem cells (SDSCs) are a potential source of stem cells for the repair of articular cartilage defects. But, the effect of low oxygen tension on the proliferation and chondrogenic differentiation in SDSCs has not characterized. In this study, we investigated the effects of hypoxia on proliferation and chondrogenesis in SDSCs. Method SDSCs were isolated from patients with osteoarthritis at total knee replacement. To determine the effect of oxygen tension on proliferation and colony-forming characteristics of SDSCs, A colony-forming unit (CFU) assay and cell counting-based proliferation assay were performed under normoxic (21% oxygen) or hypoxic (5% oxygen). For in vitro chondrogenic differentiation, SDSCs were concentrated to form pellets and subjected to conditions appropriate for chondrogenic differentiation under normoxia and hypoxia, followed by the analysis for the expression of genes and proteins of chondrogenesis. qRT-PCR, histological assay, and glycosoaminoglycan assays were determined to assess chondrogenesis. Results Low oxygen condition significantly increased proliferation and colony-forming characteristics of SDSCs compared to that of SDSCs under normoxic culture. Similar pellet size and weight were found for chondrogensis period under hypoxia and normoxia condition. The mRNA expression of types II collagen, aggrecan, and the transcription factor SOX9 was increased under hypoxia condition. Histological sections stained with Safranin-O demonstrated that hypoxic conditions had increased proteoglycan synthesis. Immunohistochemistry for types II collagen demonstrated that hypoxic culture of SDSCs increased type II collagen expression. In addition, GAG deposition was significantly higher in hypoxia compared with normoxia at 21 days of differentiation. Conclusion These findings show that hypoxia condition has an important role in regulating the synthesis ECM matrix by SDSCs as they undergo chondrogenesis. This has important implications for cartilage tissue engineering applications of SDSCs.
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Affiliation(s)
- Hyun Cheol Bae
- Department of Orthopedic Surgery, Seoul National University Hospital, Yongondong Chongnogu, Seoul, 110-744 Republic of Korea
| | - Hee Jung Park
- Department of Orthopedic Surgery, Seoul National University Hospital, Yongondong Chongnogu, Seoul, 110-744 Republic of Korea
| | - Sun Young Wang
- Department of Orthopedic Surgery, Seoul National University Hospital, Yongondong Chongnogu, Seoul, 110-744 Republic of Korea
| | - Ha Ru Yang
- Department of Orthopedic Surgery, Seoul National University Hospital, Yongondong Chongnogu, Seoul, 110-744 Republic of Korea
| | - Myung Chul Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Yongondong Chongnogu, Seoul, 110-744 Republic of Korea
| | - Hyuk-Soo Han
- Department of Orthopedic Surgery, Seoul National University Hospital, Yongondong Chongnogu, Seoul, 110-744 Republic of Korea
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14
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Bonifazi F, Dan E, Labopin M, Sessa M, Guadagnuolo V, Ferioli M, Rizzi S, De Carolis S, Sinigaglia B, Motta MR, Bontadini A, Giudice V, Martinelli G, Arpinati M, Cavo M, Bonafé M, Storci G. Intrabone transplant provides full stemness of cord blood stem cells with fast hematopoietic recovery and low GVHD rate: results from a prospective study. Bone Marrow Transplant 2018; 54:717-725. [PMID: 30232415 PMCID: PMC6760547 DOI: 10.1038/s41409-018-0335-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/12/2018] [Accepted: 08/19/2018] [Indexed: 02/07/2023]
Abstract
Umbilical Cord Blood (UCB) represents a valid option for patients with hematopoietic malignancies lacking an HLA matched donor. To overcome the limitation of the low stem cell dose of UCB, the intrabone (IB) route has been proposed. We report the results of a prospective study on a poor-prognosis cohort of 23 patients receiving intrabone single UCB transplant (Clinicaltrials.gov NCT00886522). Cumulative incidence of hematological recovery at day 90 was 82 ± 9% (ANC > 0.5 × 109/L) and 70 ± 10% (platelet > 50 × 109/L) and correlated with CD34 + cells in the graft. NRM was 20 ± 9%. No severe aGVHD and only one extensive cGVHD occurred, with fast immune reconstitution. To test the hypothesis that the direct IB injection could affect the expression of stem cells regulatory pathways, CD34 + cells from BM aspirates at day + 10, + 20, + 30, processed in hypoxic conditions mimicking the BM-microenvironment (7%pO2), were studied for the expression of c-Mpl, Notch1 and CXCR4. We found that the expression of c-Mpl in CD34 + cells at day + 10 significantly correlated with hematological recovery. In conclusion, IB-UCB transplant success is associated with low incidence of GVHD and high-speed platelet recovery; intrabone route may preserve full hematopoietic stemness by direct delivery of UCB stem cells into the hypoxic HSC niche.
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Affiliation(s)
- Francesca Bonifazi
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy.
| | - Elisa Dan
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Myriam Labopin
- Hôpital Saint-Antoine 184 rue du Faubourg Saint-Antoine, 75571, Paris Cedex 12, Paris, France
| | - Mariarosaria Sessa
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Viviana Guadagnuolo
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Martina Ferioli
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Simonetta Rizzi
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Sabrina De Carolis
- DIMES, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Barbara Sinigaglia
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Maria Rosa Motta
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Andrea Bontadini
- Immunogenetics, University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Valeria Giudice
- Apheresis Unit, University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Giovanni Martinelli
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Mario Arpinati
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Michele Cavo
- Institute of Hematology "L. and A. Seràgnoli", University Hospital S. Orsola-Malpighi, Bologna, Italy.,DIMES, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Massimiliano Bonafé
- DIMES, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy. .,Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy.
| | - Gianluca Storci
- DIMES, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.,Interdepartmental Center "Luigi Galvani", CIG, University of Bologna, Bologna, Italy
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15
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Zhang W, Zhang W, Zhang X, Lu Q, Cai H, Tan WS. Hyperoside promotes ex vivo expansion of hematopoietic stem/progenitor cells derived from cord blood by reducing intracellular ROS level. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.06.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Tiwari A, Wong CS, Nekkanti LP, Deane JA, McDonald C, Li J, Pham Y, Sutherland AE, Jenkin G, Kirkland MA. Controlling the Effective Oxygen Tension Experienced by Cells Using a Dynamic Culture Technique for Hematopoietic Ex Vivo Expansion. ACTA ACUST UNITED AC 2018; 44:2A.11.1-2A.11.13. [PMID: 29512129 DOI: 10.1002/cpsc.42] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Clinical hematopoietic stem/progenitor cell (HSPC) transplantation outcomes are strongly correlated with the number of cells infused. Hence, to generate sufficient HSPCs for transplantation, the best culture parameters for expansion are critical. It is generally assumed that the defined oxygen (O2 ) set for the incubator reflects the pericellular O2 to which cells are being exposed. Studies have shown that low O2 tension maintains an undifferentiated state, but the expansion rate may be constrained because of limited diffusion in a static culture system. A combination of low ambient O2 and dynamic culture conditions has been developed to increase the reconstituting capacity of human HSPCs. In this unit, the protocols for serum-free expansion of HSPCs at 5% and 20% O2 in static and dynamic nutrient flow mode are described. Finally, the impact of O2 tension on HSPC expansion in vitro by flow cytometry and colony forming assays and in vivo through engraftment using a murine model is assessed. © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Abhilasha Tiwari
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Cynthia S Wong
- Institute for Frontier Materials, Deakin University, Geelong, Victoria, Australia
| | - Lakshmi P Nekkanti
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - James A Deane
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Courtney McDonald
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Jingang Li
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Yen Pham
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Amy E Sutherland
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Graham Jenkin
- The Ritchie Centre, Hudson Institute of Medical Research, Department of Obstetrics & Gynaecology, Southern Clinical School, Monash University, Clayton, Victoria, Australia
| | - Mark A Kirkland
- Institute for Frontier Materials, Deakin University, Geelong, Victoria, Australia
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17
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Choi W, Kwon SJ, Jin HJ, Jeong SY, Choi SJ, Oh W, Yang YS, Jeon HB, Jeon ES. Optimization of culture conditions for rapid clinical-scale expansion of human umbilical cord blood-derived mesenchymal stem cells. Clin Transl Med 2017; 6:38. [PMID: 29019171 PMCID: PMC5634990 DOI: 10.1186/s40169-017-0168-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 09/21/2017] [Indexed: 12/18/2022] Open
Abstract
Background Mesenchymal stem cells (MSCs) have broad-spectrum therapeutic effects in various diseases, and thus have many clinical applications. However, it is difficult to produce sufficient numbers of MSCs for clinical use, and improved culture systems are required. Here, we report the effects of calcium (Ca2+) and hypoxia on the proliferation of human umbilical cord blood-derived MSCs (hUCB-MSCs). In addition, we determined the optimal conditions of these two factors for the large-scale culture of hUCB-MSCs. Methods hUCB-MSCs were maintained under hypoxic conditions (3% O2) with 1.8 mM Ca2+ during long-term culture, and their proliferation was evaluated. To characterize the underlying mechanisms, the effects on hypoxia-inducible factor (HIF)-1α and the extracellular signal-regulated kinase (ERK) signaling pathways were investigated. The therapeutic effects in a mouse emphysema model were analyzed and compared with those of naive MSCs. Results The proliferation of Ca2+/hypoxia-treated hUCB-MSCs was increased compared with that observed using either calcium or hypoxia culture alone, without loss of stem cell marker expression or differentiation ability. The enhancement of the proliferation capacity of hUCB-MSCs by the synergistic effects of Ca2+ and hypoxia was dependent on the expression of HIF-1α and the ERK signaling pathway. The proliferation of Ca2+/hypoxia-treated hUCB-MSCs resulted in a delayed senescence phenotype and increased the expression levels of stemness genes such as Oct4 and Nanog compared to those observed in conventional culture conditions. In addition, Ca2+/hypoxia-treated MSCs transplantation in the mouse emphysema model showed the same therapeutic effects as observed with naive MSCs. Conclusions These findings suggest that a Ca2+/hypoxia-based expansion system has applications for the large-scale production of MSCs for therapeutic purposes. Electronic supplementary material The online version of this article (doi:10.1186/s40169-017-0168-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wankyu Choi
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Soon-Jae Kwon
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Hye Jin Jin
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Sang Young Jeong
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Soo Jin Choi
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Wonil Oh
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Yoon Sun Yang
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Hong Bae Jeon
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea
| | - Eun Su Jeon
- Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., 21 Daewangpangyo-ro 644beon-gil, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13494, Republic of Korea.
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18
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Hoggatt J, Kfoury Y, Scadden DT. Hematopoietic Stem Cell Niche in Health and Disease. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2017; 11:555-81. [PMID: 27193455 DOI: 10.1146/annurev-pathol-012615-044414] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Regulation of stem cells in adult tissues is a key determinant of how well an organism can respond to the stresses of physiological challenge and disease. This is particularly true of the hematopoietic system, where demands on host defenses can call for an acute increase in cell production. Hematopoietic stem cells receive the regulatory signals for cell production in adult mammals in the bone marrow, a tissue with higher-order architectural and functional organization than previously appreciated. Here, we review the data defining particular structural components and heterologous cells in the bone marrow that participate in hematopoietic stem cell function. Further, we explore the case for stromal-hematopoietic cell interactions contributing to neoplastic myeloid disease. As the hematopoietic regulatory networks in the bone marrow are revealed, it is anticipated that strategies will emerge for how to enhance or inhibit production of specific blood cells. In that way, the control of hematopoiesis will enter the domain of therapies to modulate broad aspects of hematopoiesis, both normal and malignant.
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Affiliation(s)
- Jonathan Hoggatt
- Harvard Stem Cell Institute, Cambridge, Massachusetts 02138.,Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, Massachusetts 02138.,Center for Regenerative Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114;
| | - Youmna Kfoury
- Harvard Stem Cell Institute, Cambridge, Massachusetts 02138.,Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, Massachusetts 02138.,Center for Regenerative Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114;
| | - David T Scadden
- Harvard Stem Cell Institute, Cambridge, Massachusetts 02138.,Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, Massachusetts 02138.,Center for Regenerative Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114;
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19
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Tiwari A, Wong CS, Nekkanti LP, Deane JA, McDonald C, Jenkin G, Kirkland MA. Impact of Oxygen Levels on Human Hematopoietic Stem and Progenitor Cell Expansion. Stem Cells Dev 2016; 25:1604-1613. [PMID: 27539189 DOI: 10.1089/scd.2016.0153] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Oxygen levels are an important variable during the in vitro culture of stem cells. There has been increasing interest in the use of low oxygen to maximize proliferation and, in some cases, effect differentiation of stem cell populations. It is generally assumed that the defined pO2 in the incubator reflects the pO2 to which the stem cells are being exposed. However, we demonstrate that the pO2 experienced by cells in static culture can change dramatically during the course of culture as cell numbers increase and as the oxygen utilization by cells exceeds the diffusion of oxygen through the media. Dynamic culture (whereby the cell culture plate is in constant motion) largely eliminates this effect, and a combination of low ambient oxygen and dynamic culture results in a fourfold increase in reconstituting capacity of human hematopoietic stem cells compared with those cultured in static culture at ambient oxygen tension. Cells cultured dynamically at 5% oxygen exhibited the best expansion: 30-fold increase by flow cytometry, 120-fold increase by colony assay, and 11% of human CD45 engraftment in the bone marrow of NOD/SCID mice. To our knowledge, this is the first study to compare individual and combined effects of oxygen and static or dynamic culture on hematopoietic ex vivo expansion. Understanding and controlling the effective oxygen tension experienced by cells may be important in clinical stem cell expansion systems, and these results may have relevance to the interpretation of low oxygen culture studies.
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Affiliation(s)
- Abhilasha Tiwari
- 1 The Ritchie Centre, Hudson Institute of Medical Research , Clayton, Australia
| | | | - Lakshmi P Nekkanti
- 1 The Ritchie Centre, Hudson Institute of Medical Research , Clayton, Australia
| | - James A Deane
- 1 The Ritchie Centre, Hudson Institute of Medical Research , Clayton, Australia .,3 Department of Obstetrics and Gynaecology, Southern Clinical School, Monash University , Clayton, Australia
| | - Courtney McDonald
- 1 The Ritchie Centre, Hudson Institute of Medical Research , Clayton, Australia
| | - Graham Jenkin
- 1 The Ritchie Centre, Hudson Institute of Medical Research , Clayton, Australia .,3 Department of Obstetrics and Gynaecology, Southern Clinical School, Monash University , Clayton, Australia
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20
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Effects of local anesthetics on the respiratory burst of cord blood neutrophils in vitro. Pediatr Res 2016; 80:258-66. [PMID: 27055189 DOI: 10.1038/pr.2016.68] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 02/02/2016] [Indexed: 11/09/2022]
Abstract
BACKGROUND Whether local anesthetics exert anti-inflammatory effects in fetal and newborn systemic neutrophils is unclear. The aim of the present study was to assess the effects of bupivacaine and lidocaine on the respiratory burst of cord blood neutrophils in vitro compared with adult cells. METHODS Whole cord blood (n = 12) and control adult blood samples (n = 7) were incubated with bupivacaine (0.0005, 0.005, 0.05, 1 mmol/l) and lidocaine (0.002, 0.02, 0.2, 4 mmol/l) for 1 and 4 h. The production of reactive oxygen species (ROS) by unstimulated neutrophils and the phorbol myristate acetate-induced oxidative burst were assessed by flow cytometry. A subset of neutrophils showing high fluorescence intensity (rho+) was analyzed separately. RESULTS After 1 h incubation, local anesthetics decreased the respiratory burst in whole cord blood and adult neutrophils in a similar manner. At the clinically relevant concentration of 0.0005 mmol/l, bupivacaine was active, but its effect in cord blood cells could not be detected after 4 h. The cord blood rho+ cell subset was unresponsive to the inhibitory action of bupivacaine. In rho+ neutrophils, basal ROS production was stimulated by lidocaine at the lowest concentration tested. CONCLUSION Bupivacaine and lidocaine can decrease the respiratory burst in neutrophils of term newborns.
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21
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Effects of Hypoxia and Chitosan on Equine Umbilical Cord-Derived Mesenchymal Stem Cells. Stem Cells Int 2016; 2016:2987140. [PMID: 27379167 PMCID: PMC4917753 DOI: 10.1155/2016/2987140] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/26/2016] [Indexed: 01/09/2023] Open
Abstract
Chitosan opens new perspectives in regenerative medicine as it enhances the properties of mesenchymal stem cells (MSCs) through formation of spheroids. Hypoxia has also been proposed to enhance stemness and survival of MSCs after in vivo implantation. These characteristics are relevant to the development of an off-the-shelf source of allogenic cells for regenerative therapy of tendinopathies. Umbilical cord-derived MSCs (UCM-MSCs) offer an abundant source of immature and immunoprivileged stem cells. In this study, equine UCM-MSCs (eqUCM-MSCs) conditioned for 3 and 7 days on chitosan films at 5% oxygen were compared to eqUCM-MSCs under standard conditions. Equine UCM-MSCs formed spheroids on chitosan but yielded 72% less DNA than standard eqUCM-MSCs. Expression of Sox2, Oct4, and Nanog was 4 to 10 times greater in conditioned cells at day 7. Fluorescence-labeled cells cultured for 7 days under standard conditions or on chitosan films under hypoxia were compared in a bilateral patellar tendon defect model in rats. Fluorescence was present in all treated tendons, but the modulus of elasticity under tension was greater in tendons treated with conditioned cells. Chitosan and hypoxia affected cell yield but improved the stemness of eqUCM-MSCs and their contribution to the healing of tissues. Given the abundance of allogenic cells, these properties are highly relevant to clinical applications and outweigh the negative impact on cell proliferation.
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22
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Wang Z, Du Z, Cai H, Ye Z, Fan J, Tan WS. Low oxygen tension favored expansion and hematopoietic reconstitution of CD34+CD38−cells expanded from human cord blood-derived CD34+Cells. Biotechnol J 2016; 11:945-53. [DOI: 10.1002/biot.201500497] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 12/08/2015] [Accepted: 03/17/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Ziyan Wang
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai China
| | - Zheng Du
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai China
| | - Haibo Cai
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai China
| | - Zhaoyang Ye
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai China
| | - Jinli Fan
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai China
| | - Wen-Song Tan
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai China
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23
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Venturini L, Stadler M, Manukjan G, Scherr M, Schlegelberger B, Steinemann D, Ganser A. The stem cell zinc finger 1 (SZF1)/ZNF589 protein has a human-specific evolutionary nucleotide DNA change and acts as a regulator of cell viability in the hematopoietic system. Exp Hematol 2015; 44:257-68. [PMID: 26738774 DOI: 10.1016/j.exphem.2015.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/15/2015] [Accepted: 12/19/2015] [Indexed: 01/19/2023]
Abstract
The stem cell zinc finger 1 (SZF1)/ZNF589 protein belongs to the large family of Krüppel-associated box domain-zinc finger (KRAB-ZNF) transcription factors, which are present only in higher vertebrates and epigenetically repress transcription by recruiting chromatin-modifying complexes to the promoter regions of their respective target genes. Although the distinct biological functions of most KRAB-ZNF proteins remain unknown, recent publications indicate their implication in fundamental processes, such as cell proliferation, apoptosis, differentiation, development, and tumorigenesis. SZF1/ZNF589 was first identified as a gene with SZF1-1 isoform specifically expressed in CD34(+) hematopoietic cells, strongly suggesting a role in epigenetic control of gene expression in hematopoietic stem/progenitor cells (HSPCs). However, the function of SZF1/ZNF589 in hematopoiesis has not yet been elucidated. Our study reveals SZF1/ZNF589 as a gene with a human-specific nucleotide DNA-change, conferring potential species-specific functional properties. Through shRNA-mediated loss-of-function experiments, we found that changes in expression of fundamental apoptosis-controlling genes are induced on SZF1/ZNF589 knockdown, resulting in inhibited growth of hematopoietic cell lines and decreased progenitor potential of primary human bone marrow CD34(+) cells. Moreover, we found that the SZF1/ZNF589 gene is differentially regulated during hypoxia in CD34(+) HSPCs in a cytokine-dependent manner, implicating its possible involvement in the maintenance of the hypoxic physiologic status of hematopoietic stem cells. Our results establish the role of SZF1/ZNF589 as a new functional regulator of the hematopoietic system.
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Affiliation(s)
- Letizia Venturini
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany.
| | - Michael Stadler
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Georgi Manukjan
- Institute of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Michaela Scherr
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | | | - Doris Steinemann
- Institute of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Arnold Ganser
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
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Lipsitz YY, Zandstra PW. Human pluripotent stem cell process parameter optimization in a small scale suspension bioreactor. BMC Proc 2015. [PMCID: PMC4685349 DOI: 10.1186/1753-6561-9-s9-o10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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25
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Sotnezova EV, Gornostaeva AN, Andreeva ER, Romanov YA, Balashova EE, Buravkova LB. The effect of stromal cells and oxygen concentration on maintenance of cord blood hematopoietic precursors. ACTA ACUST UNITED AC 2015. [DOI: 10.1134/s1990519x15050120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Choi JS, Mahadik BP, Harley BAC. Engineering the hematopoietic stem cell niche: Frontiers in biomaterial science. Biotechnol J 2015; 10:1529-45. [PMID: 26356030 PMCID: PMC4724421 DOI: 10.1002/biot.201400758] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 06/15/2015] [Accepted: 07/16/2015] [Indexed: 12/13/2022]
Abstract
Hematopoietic stem cells (HSCs) play a crucial role in the generation of the body's blood and immune cells. This process takes place primarily in the bone marrow in specialized 'niche' microenvironments, which provide signals responsible for maintaining a balance between HSC quiescence, self-renewal, and lineage specification required for life-long hematopoiesis. While our understanding of these signaling mechanisms continues to improve, our ability to engineer them in vitro for the expansion of clinically relevant HSC populations is still lacking. In this review, we focus on development of biomaterials-based culture platforms for in vitro study of interactions between HSCs and their local microenvironment. The tools and techniques used for both examining HSC-niche interactions as well as applying these findings towards controlled HSC expansion or directed differentiation in 2D and 3D platforms are discussed. These novel techniques hold the potential to push the existing boundaries of HSC cultures towards high-throughput, real-time, and single-cell level biomimetic approaches that enable a more nuanced understanding of HSC regulation and function. Their application in conjunction with innovative biomaterial platforms can pave the way for engineering artificial bone marrow niches for clinical applications as well as elucidating the pathology of blood-related cancers and disorders.
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Affiliation(s)
- Ji Sun Choi
- Dept. Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Bhushan P Mahadik
- Dept. Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Brendan A C Harley
- Dept. Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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27
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Jež M, Rožman P, Ivanović Z, Bas T. Concise Review: The Role of Oxygen in Hematopoietic Stem Cell Physiology. J Cell Physiol 2015; 230:1999-2005. [DOI: 10.1002/jcp.24953] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 01/29/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Mojca Jež
- Department of Immunohematology; Blood Transfusion Centre of Slovenia; Šlajmerjeva 6, Ljubljana Slovenia
| | - Primož Rožman
- Department of Immunohematology; Blood Transfusion Centre of Slovenia; Šlajmerjeva 6, Ljubljana Slovenia
| | - Zoran Ivanović
- Aquitaine-Limousin Branch of French Blood Institute; CNRS/Bordeaux University UMR 5164; Bordeaux France
| | - Tuba Bas
- Department of Medicine; Albert Einstein College of Medicine; 1300 Morris Park Avenue, Bronx New York
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28
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Schmidt-Lucke C, Zobel T, Schrepfer S, Kuhl U, Wang D, Klingel K, Becher PM, Fechner H, Pozzuto T, Van Linthout S, Lassner D, Spillmann F, Escher F, Holinski S, Volk HD, Schultheiss HP, Tschope C. Impaired Endothelial Regeneration Through Human Parvovirus B19-Infected Circulating Angiogenic Cells in Patients With Cardiomyopathy. J Infect Dis 2015; 212:1070-81. [PMID: 25805750 DOI: 10.1093/infdis/jiv178] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 02/26/2015] [Indexed: 11/13/2022] Open
Abstract
Human parvovirus B19 (B19V) is a common pathogen in microvascular disease and cardiomyopathy, owing to infection of endothelial cells. B19V replication, however, is almost restricted to erythroid progenitor cells (ErPCs). Endothelial regeneration attributable to bone marrow-derived circulating angiogenic cells (CACs) is a prerequisite for organ function. Because of many similarities of ErPCs and CACs, we hypothesized that B19V is a perpetrator of impaired endogenous endothelial regeneration. B19V DNA and messenger RNA from endomyocardial biopsy specimens, bone marrow specimens, and circulating progenitor cells were quantified by polymerase chain reaction analysis. The highest B19V DNA concentrations were found in CD34(+)KDR(+) cells from 17 patients with chronic B19V-associated cardiomyopathy. B19V replication intermediates could be detected in nearly half of the patients. Furthermore, chronic B19V infection was associated with impaired endothelial regenerative capacity. B19V infection of CACs in vitro resulted in expression of transcripts encoding B19V proteins. The capsid protein VP1 was identified as a novel inducer of apoptosis, as were nonstructural proteins. Inhibition studies identified so-called death receptor signaling with activation of caspase-8 and caspase-10 to be responsible for apoptosis induction. B19V causally impaired endothelial regeneration with spreading of B19V in CACs in an animal model in vivo. We thus conclude that B19V infection and damage to CACs result in dysfunctional endogenous vascular repair, supporting the emergence of primary bone marrow disease with secondary end-organ damage.
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Affiliation(s)
- Caroline Schmidt-Lucke
- Department of Cardiology and Pneumology Berlin-Brandenburg Center for Regenerative Therapies Medico-Academic Consultings
| | | | - Sonja Schrepfer
- Transplant and Stem Cell Immunobiology Laboratory, University Heart Center Hamburg
| | - Uwe Kuhl
- Department of Cardiology and Pneumology
| | - Dong Wang
- Transplant and Stem Cell Immunobiology Laboratory, University Heart Center Hamburg
| | - Karin Klingel
- Department of Molecular Pathology, Institute of Pathology, Tübingen, Germany
| | | | - Henry Fechner
- Department of Cardiology and Pneumology Institute for Biotechnology, University of Technology
| | | | | | | | | | | | | | - Hans-Dieter Volk
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin-Brandenburg Center for Regenerative Therapies
| | | | - Carsten Tschope
- Department of Cardiology and Pneumology Berlin-Brandenburg Center for Regenerative Therapies Deutsches Zentrum für Herz-Kreislauf-Forschung, Berlin
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29
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Structure and function of BCRP, a broad specificity transporter of xenobiotics and endobiotics. Arch Toxicol 2014; 88:1205-48. [DOI: 10.1007/s00204-014-1224-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 03/06/2014] [Indexed: 12/20/2022]
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30
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CAPE promotes the expansion of human umbilical cord blood-derived hematopoietic stem and progenitor cells in vitro. SCIENCE CHINA-LIFE SCIENCES 2014; 57:188-94. [PMID: 24448906 DOI: 10.1007/s11427-014-4611-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 09/12/2013] [Indexed: 10/25/2022]
Abstract
Due to the low number of collectable stem cells from single umbilical cord blood (UCB) unit, their initial uses were limited to pediatric therapies. Clinical applications of UCB hematopoietic stem and progenitor cells (HSPCs) would become feasible if there were a culture method that can effectively expand HSPCs while maintaining their self-renewal capacity. In recent years, numerous attempts have been made to expand human UCB HSPCs in vitro. In this study, we report that caffeic acid phenethyl ester (CAPE), a small molecule from honeybee extract, can promote in vitro expansion of HSPCs. Treatment with CAPE increased the percentage of HSPCs in cultured mononuclear cells. Importantly, culture of CD34(+) HSPCs with CAPE resulted in a significant increase in total colony-forming units and high proliferative potential colony-forming units. Burst-forming unit-erythroid was the mostly affected colony type, which increased more than 3.7-fold in 1 μg mL(-1) CAPE treatment group when compared to the controls. CAPE appears to induce HSPC expansion by upregulating the expression of SCF and HIF1-α. Our data suggest that CAPE may become a potent medium supplement for in vitro HSPC expansion.
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31
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Pharmacologic increase in HIF1α enhances hematopoietic stem and progenitor homing and engraftment. Blood 2013; 123:203-7. [PMID: 24167196 DOI: 10.1182/blood-2013-07-516336] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Hematopoietic stem cell (HSC) transplantation is a lifesaving therapy for a number of immunologic disorders. For effective transplant, HSCs must traffic from the peripheral blood to supportive bone marrow niches. We previously showed that HSC trafficking can be enhanced by ex vivo treatment of hematopoietic grafts with 16-16 dimethyl prostaglandin E2 (dmPGE2). While exploring regulatory molecules involved in dmPGE2 enhancement, we found that transiently increasing the transcription factor hypoxia-inducible factor 1-α (HIF1α) is required for dmPGE2-enhanced CXCR4 upregulation and enhanced migration and homing of stem and progenitor cells and that pharmacologic manipulation of HIF1α is also capable of enhancing homing and engraftment. We also now identify the specific hypoxia response element required for CXCR4 upregulation. These data define a precise mechanism through which ex vivo pulse treatment with dmPGE2 enhances the function of hematopoietic stem and progenitor cells; these data also define a role for hypoxia and HIF1α in enhancement of hematopoietic transplantation.
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32
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Kumar SS, Hsiao JH, Ling QD, Dulinska-Molak I, Chen G, Chang Y, Chang Y, Chen YH, Chen DC, Hsu ST, Higuchi A. The combined influence of substrate elasticity and surface-grafted molecules on the ex vivo expansion of hematopoietic stem and progenitor cells. Biomaterials 2013; 34:7632-44. [DOI: 10.1016/j.biomaterials.2013.07.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 07/01/2013] [Indexed: 11/17/2022]
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T-cell potential of human adult and cord blood hemopoietic stem cells expanded with the use of aryl hydrocarbon receptor antagonists. Cytotherapy 2013; 15:224-30. [PMID: 23321333 DOI: 10.1016/j.jcyt.2012.10.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 09/11/2012] [Accepted: 10/08/2012] [Indexed: 01/22/2023]
Abstract
BACKGROUND AIMS Expansion of hemopoietic stem cells (HSCs) in vitro is a potential strategy for improving transplant outcomes, but expansion methods tend to promote differentiation and loss of stem cell potential. Aryl hydrocarbon receptor antagonists (AhRAs) have recently been shown to protect HSC stemness during expansion; however, little is known of the T-cell regenerative capacity of AhRA-expanded HSCs. In this study, we confirm the protective effect of two commercially available AhRA compounds on HSCs from both cord blood (CB) and adult samples and assess the T-lymphocyte potential of the expanded cells. METHODS Adult mobilized peripheral blood and CB samples were purified to CD34(+) cells, which were expanded in vitro with cytokines and AhRAs. After 14 d, CD34(+) cells were re-isolated and then grown on in OP9Delta co-culture under conditions that allow T-lymphocyte differentiation. Cells were monitored weekly for T-lineage markers by flow cytometry. RESULTS Both AhRA compounds promoted maintenance of CD34 expression during 2 weeks of proliferation with growth factors, although adult cells proliferated markedly less than CB cells. AhRA-expanded CD34(+) cells from CB differentiated to T cells on OP9Delta co-culture with the same rate and time course as untreated cells. Adult cells, by contrast, had reduced differentiation to T cells, with donor-dependent variable responses. CONCLUSIONS This study shows that whereas AhRA treatment is effective in CB samples, expansion of adult HSCs is less successful and reflects their inherent poor potential in T-cell generation.
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34
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Yang Y, Ma W, Wu D, Huang Y, Li H, Zou J, Zhang Y, Feng M, Luo J. MiR-17 partly promotes hematopoietic cell expansion through augmenting HIF-1α in osteoblasts. PLoS One 2013; 8:e70232. [PMID: 23936170 PMCID: PMC3723828 DOI: 10.1371/journal.pone.0070232] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 06/17/2013] [Indexed: 12/21/2022] Open
Abstract
Background Hematopoietic stem cell (HSC) regulation is highly dependent on interactions with the marrow microenvironment, of which osteogenic cells play a crucial role. While evidence is accumulating for an important role of intrinsic miR-17 in regulating HSCs and HPCs, whether miR-17 signaling pathways are also necessary in the cell-extrinsic control of hematopoiesis hereto remains poorly understood. Methodology/Principal Findings Using the immortalized clone with the characteristics of osteoblasts, FBMOB-hTERT, in vitro expansion, long-term culture initiating cell (LTC-IC) and non-obese diabetic/severe combined immunodeficient disease (NOD/SCID) mice repopulating cell (SRC) assay revealed that the ectopic expression of miR-17 partly promoted the ability of FBMOB-hTERT to support human cord blood (CB) CD34+ cell expansion and maintain their multipotency. It also seemed that osteoblastic miR-17 was prone to cause a specific expansion of the erythroid lineage. Conversely, deficient expression of miR-17 partly inhibited the hematopoietic supporting ability of FBMOB-hTERT. We further identified that HIF-1α is responsible for, at least in part, the promoted hematopoietic supporting ability of FBMOB-hTERT caused by miR-17. HIF-1α expression is markedly enhanced in miR-17 overexpressed FBMOB-hTERT upon interaction with CB CD34+ cells compared to other niche associated factors. More interestingly, the specific erythroid lineage expansion of CB CD34+ cells caused by osteoblastic miR-17 was abrogated by HIF-1α knock down. Conclusion/Significance Our data demonstrated that CB CD34+ cell expansion can be partly promoted by osteoblastic miR-17, and in particular, ectopic miR-17 can cause a specific expansion of the erythroid lineage through augmenting HIF-1α in osteoblasts.
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Affiliation(s)
- Yuxia Yang
- Department of Medical Genetics, School of Basic Medical Sciences, Peking University, Beijing, China
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35
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Chen S, Su Y, Wang J. ROS-mediated platelet generation: a microenvironment-dependent manner for megakaryocyte proliferation, differentiation, and maturation. Cell Death Dis 2013; 4:e722. [PMID: 23846224 PMCID: PMC3730424 DOI: 10.1038/cddis.2013.253] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 06/03/2013] [Accepted: 06/04/2013] [Indexed: 12/18/2022]
Abstract
Platelets have an important role in the body because of their manifold functions in haemostasis, thrombosis, and inflammation. Platelets are produced by megakaryocytes (MKs) that are differentiated from haematopoietic stem cells via several consecutive stages, including MK lineage commitment, MK progenitor proliferation, MK differentiation and maturation, cell apoptosis, and platelet release. During differentiation, the cells migrate from the osteoblastic niche to the vascular niche in the bone marrow, which is accompanied by reactive oxygen species (ROS)-dependent oxidation state changes in the microenvironment, suggesting that ROS can distinctly influence platelet generation and function in a microenvironment-dependent manner. The objective of this review is to reveal the role of ROS in regulating MK proliferation, differentiation, maturation, and platelet activation, thereby providing new insight into the mechanism of platelet generation, which may lead to the development of new therapeutic agents for thrombocytopenia and/or thrombosis.
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Affiliation(s)
- S Chen
- College of Preventive Medicine, State Key Laboratory of Trauma and Burns and Combined Injury, Third Military Medical University, Chongqing 400038, People's Republic of China
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36
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Baumann G, Travieso L, Liebl DJ, Theus MH. Pronounced hypoxia in the subventricular zone following traumatic brain injury and the neural stem/progenitor cell response. Exp Biol Med (Maywood) 2013; 238:830-41. [PMID: 23828590 PMCID: PMC9948687 DOI: 10.1177/1535370213494558] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Traumatic brain injury (TBI) elicits identifiable changes within the adult subventricular zone (SVZ). Previously, we demonstrated that EphB3/ephrinB3 interaction inhibits neural stem/progenitor cell (NSPC) proliferation and downregulating this pathway following TBI plays a pivotal role in the expansion of the SVZ neurogenic compartment. It remains unclear, however, what early initiating factors may precede these changes. Using hypoxyprobe-1 (HPb) to identify regions of low oxygen tension or hypoxia (<1%), we found HPb uptake throughout the cortex (CTX), corpus callosum (CC) and SVZ within the first 24 h following controlled cortical impact (CCI) injury. At this early time point, HPb co-localized with EphB3 in the SVZ. NSPC specific markers also co-localized with HPb staining throughout the lateral wall of the ventricle. To determine the cell autonomous effects of hypoxia on EphB3/ephrinB3 signaling in NSPCs, we used an in vitro model of hypoxia to mimic 1% oxygen in the presence and absence of soluble aggregated ephrinB3 (eB3). As expected, hypoxia stimulated the uptake of 5-bromo-2'-deoxyuridine (BrdU) and reduced cell death. Coincident with these proliferative changes, both Hif1-α and phospho (p)-AKT were increased while EphB3 expression was decreased. Stimulation of EphB3 attenuated hypoxia-induced proliferation and prevented phosphorylation of AKT. Hif1-α accumulation, on the other hand, was not affected by EphB3/ephrinB3 signaling. These findings indicate that this pathway limits the NSPC response to hypoxic stimuli. These studies also suggest that early transient changes in oxygen tension following localized cortical injury may initiate a growth-promoting response in the SVZ.
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Affiliation(s)
- Gisela Baumann
- The Miami Project to Cure Paralysis and Department of Neurological Surgery, University of Miami, Miami, FL 33136, USA
| | - Lissette Travieso
- The Miami Project to Cure Paralysis and Department of Neurological Surgery, University of Miami, Miami, FL 33136, USA
| | - Daniel J Liebl
- The Miami Project to Cure Paralysis and Department of Neurological Surgery, University of Miami, Miami, FL 33136, USA
| | - Michelle H Theus
- The Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, VA 24061, USA
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37
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Csaszar E, Cohen S, Zandstra PW. Blood stem cell products: Toward sustainable benchmarks for clinical translation. Bioessays 2013; 35:201-10. [DOI: 10.1002/bies.201200118] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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38
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Larochelle A. Cord blood culture in hypoxia: making the cells feel at home. Cytotherapy 2012; 14:900-1. [PMID: 22928589 DOI: 10.3109/14653249.2012.721923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Andre Larochelle
- National Institutes of Health, National Heart, Lung, and Blood Institute, Hematology Branch, Bethesda, MD 20892, USA.
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