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Herten M, Zilkens C, Thorey F, Tassemeier T, Lensing-Höhn S, Fischer JC, Sager M, Krauspe R, Jäger M. Biomechanical Stability and Osteogenesis in a Tibial Bone Defect Treated by Autologous Ovine Cord Blood Cells-A Pilot Study. Molecules 2019; 24:molecules24020295. [PMID: 30650584 PMCID: PMC6358876 DOI: 10.3390/molecules24020295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/10/2019] [Accepted: 01/13/2019] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to elucidate the impact of autologous umbilical cord blood cells (USSC) on bone regeneration and biomechanical stability in an ovine tibial bone defect. Ovine USSC were harvested and characterized. After 12 months, full-size 2.0 cm mid-diaphyseal bone defects were created and stabilized by an external fixateur containing a rigidity measuring device. Defects were filled with (i) autologous USSC on hydroxyapatite (HA) scaffold (test group), (ii) HA scaffold without cells (HA group), or (iii) left empty (control group). Biomechanical measures, standardized X-rays, and systemic response controls were performed regularly. After six months, bone regeneration was evaluated histomorphometrically and labeled USSC were tracked. In all groups, the torsion distance decreased over time, and radiographies showed comparable bone regeneration. The area of newly formed bone was 82.5 ± 5.5% in the control compared to 59.2 ± 13.0% in the test and 48.6 ± 2.9% in the HA group. Labeled cells could be detected in lymph nodes, liver and pancreas without any signs of tumor formation. Although biomechanical stability was reached earliest in the test group with autologous USSC on HA scaffold, the density of newly formed bone was superior in the control group without any bovine HA.
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Affiliation(s)
- Monika Herten
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany.
| | - Christoph Zilkens
- Orthopedic Department, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Fritz Thorey
- Center for Hip, Knee and Foot Surgery, Sports Traumatology Department, ATOS Hospital, 69115 Heidelberg, Germany.
| | - Tjark Tassemeier
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany.
| | - Sabine Lensing-Höhn
- Orthopedic Department, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Johannes C Fischer
- Institute for Transplantation Diagnostics and Cell Therapeutics, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Martin Sager
- Animal Research Institute, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Rüdiger Krauspe
- Orthopedic Department, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Marcus Jäger
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany.
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Stem Cells for Osteochondral Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1059:219-240. [DOI: 10.1007/978-3-319-76735-2_10] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Osteogenic differentiation of equine cord blood multipotent mesenchymal stromal cells within coralline hydroxyapatite scaffolds in vitro. Vet Comp Orthop Traumatol 2017; 24:354-62. [DOI: 10.3415/vcot-10-10-0142] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Accepted: 06/05/2011] [Indexed: 11/17/2022]
Abstract
SummaryObjective: To investigate the osteogenic differentiation potential of equine umbilical cord blood-derived multipotent mesenchymal stromal cells (CB-MSC) within coralline hydro-xyapatite scaffolds cultured in osteogenic induction culture medium.Methods: Scaffolds seeded with equine CBMSC were cultured in cell expansion culture medium (control) or osteogenic induction medium (treatment). Cell viability and distribution were confirmed by the MTT cell viability assay and DAPI nuclear fluorescence staining, respectively. Osteogenic differentiation was evaluated after 10 days using reverse transcription polymerase chain reaction, alkaline phosphatase activity, and secreted osteocalcin concentration. Cell morphology and matrix deposition were assessed by scanning electron microscopy (SEM) after 14 days in culture.Results: Cells showed viability and adequate distribution within the scaffold. Successful osteogenic differentiation within the scaffolds was demonstrated by the increased expression of osteogenic markers such as Runx2, osteopontin, osteonectin, collagen IA increased levels of alkaline phosphatase activity increased osteocalcin protein secretion and bone-like matrix presence in the scaffold pores upon SEM evaluation.Clinical significance: These results demonstrate that equine CB-MSC maintain viability and exhibit osteogenic potential in coralline hydroxyapatite scaffolds when induced in vitro. Equine CB-MSC scaffold constructs deserve further investigation for their potential role as biologically active fillers to enhance bone-gap repair in the horse.
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Wu J, Sun Y, Block TJ, Marinkovic M, Zhang ZL, Chen R, Yin Y, Song J, Dean DD, Lu Z, Chen XD. Umbilical cord blood-derived non-hematopoietic stem cells retrieved and expanded on bone marrow-derived extracellular matrix display pluripotent characteristics. Stem Cell Res Ther 2016; 7:176. [PMID: 27906056 PMCID: PMC5134264 DOI: 10.1186/s13287-016-0437-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/24/2016] [Accepted: 11/08/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Umbilical cord blood (UCB) not only contains hematopoietic stem cells (HSCs), but also non-hematopoietic stem cells (NHSCs) that are able to differentiate into a number of distinct cell types. Based on studies published to date, the frequency of NHSCs in UCB is believed to be very low. However, the isolation of these cells is primarily based on their adhesion to tissue culture plastic surfaces. METHODS AND RESULTS In the current study, we demonstrate that this approach overlooks some of the extremely immature NHSCs because they lack the ability to adhere to plastic. Using a native extracellular matrix (ECM), produced by bone marrow (BM) stromal cells, the majority of the UCB-NHSCs attached within 4 h. The colony-forming unit fibroblast frequency of these cells was 1.5 × 104/108 mononuclear cells, which is at least 4000-fold greater than previously reported for UCB-NHSCs. The phenotype of these cells was fibroblast-like and different from those obtained by plastic adhesion; they formed embryonic body-like clusters that were OCT4-positive and expressed other human embryonic stem cell-related markers. Importantly, when implanted subcutaneously for 8 weeks into immunocompromised mice, these ECM-adherent and expanded NHSCs generated three germ layer-derived human tissues including muscle, fat, blood vessel, bone, gland, and nerve. Moreover, injection of these cells into muscle damaged by cryoinjury significantly accelerated muscle regeneration. CONCLUSIONS These results indicate that UCB may be a virtually unlimited source of NHSCs when combined with isolation and expansion on ECM. NHSCs may be a practical alternative to embryonic stem cells for a number of therapeutic applications.
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Affiliation(s)
- Junjie Wu
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.,Department of Orthodontics, Fourth Military Medical University, School of Stomatology, Xi'an, Shaanxi Province, 710032, People's Republic of China
| | - Yun Sun
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.,Center for Reproductive Medicine, Ren-Ji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai, 200135, People's Republic of China
| | - Travis J Block
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.,Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX, 78249, USA
| | - Milos Marinkovic
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.,Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX, 78249, USA
| | - Zhi-Liang Zhang
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.,Department of Plastic Surgery, Ren-Ji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, People's Republic of China
| | - Richard Chen
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA
| | - Yixia Yin
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.,Biomedical Materials Engineering Research Center, Wuhan University of Technology, Wuhan, People's Republic of China
| | - Juquan Song
- Department of Surgery, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA
| | - David D Dean
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.,Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX, 78249, USA
| | - Zhongding Lu
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA.
| | - Xiao-Dong Chen
- Research Division, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA. .,Research Service, Audie L. Murphy Division, South Texas Veterans Health Care System, San Antonio, TX, 78229-4404, USA.
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Shabani I, Haddadi-Asl V, Soleimani M, Seyedjafari E, Babaeijandaghi F, Ahmadbeigi N. Enhanced Infiltration and Biomineralization of Stem Cells on Collagen-Grafted Three-Dimensional Nanofibers. Tissue Eng Part A 2011; 17:1209-18. [DOI: 10.1089/ten.tea.2010.0356] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Iman Shabani
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
- Nanotechnology and Tissue Engineering Department, Stem Cell Technology Research Center, Tehran, Iran
| | - Vahid Haddadi-Asl
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
| | - Masoud Soleimani
- Hematology Department, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Ehsan Seyedjafari
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
- Stem Cell Biology Department, Stem Cell Technology Research Center, Tehran, Iran
| | | | - Naser Ahmadbeigi
- Stem Cell Biology Department, Stem Cell Technology Research Center, Tehran, Iran
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Effective combination of aligned nanocomposite nanofibers and human unrestricted somatic stem cells for bone tissue engineering. Acta Pharmacol Sin 2011; 32:626-36. [PMID: 21516135 DOI: 10.1038/aps.2011.8] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
AIM Bioartificial bone tissue engineering is an increasingly popular technique to solve bone defect challenges. This study aimed to investigate the interactions between matrix composition and appropriate cell type, focusing on hydroxyapatite (HA), to achieve a more effective combination for bone regeneration. METHODS Human unrestricted somatic stem cells (USSCs) were isolated from placental cord blood. The cellular and molecular events during the osteo-induction of USSCs were evaluated for 21 d under the following conditions: (1) in basal culture, (2) supplemented with hydroxyapatite nanoparticle (nHA) suspension, and (3) seeded on electrospun aligned nanofibrous poly-ɛ-caprolactone/poly-L-lactic acid/nHA (PCL/PLLA/nHA) scaffolds. The scaffolds were characterized using scanning electron microscope (SEM), fourier transform infrared spectroscopy (FTIR) and tensile test. RESULTS Maintenance of USSCs for 21 d in basal or osteogenic culture resulted in significant increase in osteoblast differentiation. With nHA suspension, even soluble osteo-inductive additives were ineffective, probably due to induced apoptosis of the cells. In contrast to the hindrance of proliferation by nHA suspension, the scaffolds improved cell growth. The scaffolds mimic the nanostructure of natural bone matrix with the combination of PLLA/PCL (organic phase) and HA (inorganic phase) offering a favorable surface topography, which was demonstrated to possess suitable properties for supporting USSCs. Quantitative measurement of osteogenic markers, enzymatic activity and mineralization indicated that the scaffolds did not disturb, but enhanced the osteogenic potential of USSCs. Moreover, the alignment of the fibers led to cell orientation during cell growth. CONCLUSION The results demonstrated the synergism of PCL/PLLA/nHA nanofibrous scaffolds and USSCs in the augmentation of osteogenic differentiation. Thus, nHA grafted into PCL/PLLA scaffolds can be a suitable choice for bone tissue regeneration.
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Arien-Zakay H, Lazarovici P, Nagler A. Tissue regeneration potential in human umbilical cord blood. Best Pract Res Clin Haematol 2011; 23:291-303. [PMID: 20837341 DOI: 10.1016/j.beha.2010.04.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Regenerative medicine is the process of creating functional tissue with the aid of stem cells, to repair loss of organ function. Possible targets for regenerative medicine include orthopaedic, cardiac, hepatic, pancreatic and central nervous system (CNS) applications. Umbilical cord blood (CB) has established itself as a legitimate source for haematopoietic stem cell transplantation. It is also considered an accessible and less immunogenic source for mesenchymal, unrestricted somatic and for other stem cells with pluri/multipotent properties. The latter are capable of differentiating into a wide variety of cell types including bone, cartilage, cardiomyocytes and neural. They also possess protective abilities that may contribute to tissue repair even if in vitro differentiation is excluded. In view of the absence of treatment for many devastating diseases, the elucidation of non-haematopoietic applications for CB will facilitate the development of pioneering relevant cell therapy approaches. This review focusses on current studies using human CB-derived cells for regenerative medicine.
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Handschel J, Naujoks C, Langenbach F, Berr K, Depprich RA, Ommerborn MA, Kübler NR, Brinkmann M, Kögler G, Meyer U. Comparison of ectopic bone formation of embryonic stem cells and cord blood stem cells in vivo. Tissue Eng Part A 2011; 16:2475-83. [PMID: 20214449 DOI: 10.1089/ten.tea.2009.0546] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cell-based reconstruction therapies promise new therapeutic opportunities for bone regeneration. Unrestricted somatic stem cells (USSC) from cord blood and embryonic stem cells (ESCs) can be differentiated into osteogenic cells. The purpose of this in vivo study was to compare their ability to induce ectopic bone formation in vivo. Human USSCs and murine ESCs were cultured as both monolayer cultures and micromasses and seeded on insoluble collagenous bone matrix (ICBM). One week and 1, 2, and 3 months after implanting the constructs in immune-deficient rats, computed tomography scans were performed to detect any calcification. Subsequently, the implanted constructs were examined histologically. The radiological examination showed a steep increase in the mineralized bone-like tissue in the USSC groups. This increase can be considered as statistically significant compared to the basic value. Moreover, the volume and the calcium portion measured by computed tomography scans were about 10 times higher than in the ESC group. The volume of mineralization in the ESC group increased to a much smaller extent over the course of time, and the control group (ICBM without cells) showed almost no alterations during the study. The histological examinations parallel the radiological findings. Cord blood stem cells in combination with ICBM-induced ectopic bone formation in vivo are stronger than ESCs.
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Affiliation(s)
- Jörg Handschel
- Department of Cranio- and Maxillofacial Surgery, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
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Seyedjafari E, Soleimani M, Ghaemi N, Sarbolouki MN. Enhanced osteogenic differentiation of cord blood-derived unrestricted somatic stem cells on electrospun nanofibers. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:165-174. [PMID: 21069560 DOI: 10.1007/s10856-010-4174-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2010] [Accepted: 10/21/2010] [Indexed: 05/30/2023]
Abstract
A new stem cell-scaffold construct based on poly-L-lactide (PLLA) nanofibers grafted with collagen (PLLA-COL) and cord blood-derived unrestricted somatic stem cells (USSC) were proposed to hold promising characteristics for bone tissue engineering. Fabricated nanofibers were characterized using SEM, ATR-FTIR, tensile and contact angle measurements. The capacity of PLLA, plasma-treated PLLA (PLLA-pl) and PLLA-COL scaffolds to support proliferation and osteogenic differentiation of USSC was evaluated using MTT assay and common osteogenic markers such as alkaline phosphatase (ALP) activity, calcium mineral deposition and bone-related genes. All three scaffolds showed nanofibrous and porous structure with suitable physical characteristics. Higher proliferation and viability of USSC was observed on PLLA-COL nanofibers compared to control surfaces. In osteogenic medium, ALP activity and calcium deposition exhibited the highest values on PLLA-COL scaffolds on days 7 and 14. These markers were also greater on PLLA and PLLA-pl compared to TCPS. Higher levels of collagen I, osteonectin and bone morphogenetic protein-2 were detected on PLLA-COL compared to PLLA and PLLA-pl. Runx2 and osteocalcin were also expressed continuously on all scaffolds during induction. These observations suggested the enhanced proliferation and osteogenic differentiation of USSC on PLLA-COL nanofiber scaffolds and introduced a new combination of stem cell-scaffold constructs with desired characteristics for application in bone tissue engineering.
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Affiliation(s)
- Ehsan Seyedjafari
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
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Abdulrazzak H, Moschidou D, Jones G, Guillot PV. Biological characteristics of stem cells from foetal, cord blood and extraembryonic tissues. J R Soc Interface 2010; 7 Suppl 6:S689-706. [PMID: 20739312 DOI: 10.1098/rsif.2010.0347.focus] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Foetal stem cells (FSCs) can be isolated during gestation from many different tissues such as blood, liver and bone marrow as well as from a variety of extraembryonic tissues such as amniotic fluid and placenta. Strong evidence suggests that these cells differ on many biological aspects such as growth kinetics, morphology, immunophenotype, differentiation potential and engraftment capacity in vivo. Despite these differences, FSCs appear to be more primitive and have greater multi-potentiality than their adult counterparts. For example, foetal blood haemopoietic stem cells proliferate more rapidly than those found in cord blood or adult bone marrow. These features have led to FSCs being investigated for pre- and post-natal cell therapy and regenerative medicine applications. The cells have been used in pre-clinical studies to treat a wide range of diseases such as skeletal dysplasia, diaphragmatic hernia and respiratory failure, white matter damage, renal pathologies as well as cancers. Their intermediate state between adult and embryonic stem cells also makes them an ideal candidate for reprogramming to the pluripotent status.
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Affiliation(s)
- Hassan Abdulrazzak
- Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0NN, UK
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Lee MW, Jang IK, Yoo KH, Sung KW, Koo HH. Stem and progenitor cells in human umbilical cord blood. Int J Hematol 2010; 92:45-51. [PMID: 20577840 DOI: 10.1007/s12185-010-0619-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 05/17/2010] [Accepted: 05/25/2010] [Indexed: 12/28/2022]
Abstract
Both stem cells and progenitor cells are present in umbilical cord blood (UCB) at a high frequency, making these cells a major target population for experimental and clinical studies. As the use of autologous or allogeneic hematopoietic stem cell transplantation in the treatment of various diseases has grown rapidly in recent years, the concept of UCB banking for future use has drawn increasing interest. Stem and progenitor cells derived from UCB offer multiple advantages over adult stem cells, such as their immaturity (which may play a significant role in reducing rejection after transplantation into a mismatched host) and ability to produce large quantities of homogeneous tissue or cells. These cells can also differentiate across tissue lineage boundaries into neural, cardiac, epithelial, hepatic, and dermal tissues. Human UCB provides an alternative cell source that is ethically acceptable and widely supported by the public. This paper summarizes the characteristics of human UCB-derived stem and progenitor cells and their potential therapeutic use for tissue and cell regeneration.
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Affiliation(s)
- Myoung Woo Lee
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-dong, Gangnam-gu, Seoul, Korea
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Buchheiser A, Liedtke S, Looijenga LH, Kögler G. Cord blood for tissue regeneration. J Cell Biochem 2009; 108:762-8. [DOI: 10.1002/jcb.22320] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Kögler G, Critser P, Trapp T, Yoder M. Future of cord blood for non-oncology uses. Bone Marrow Transplant 2009; 44:683-97. [PMID: 19802027 DOI: 10.1038/bmt.2009.287] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
For the last 5 years cord blood (CB) has been under intense experimental investigation in in vitro differentiation models and in preclinical animal models ranging from bone to muscle regeneration, cardiovascular diseases including myocardial and peripheral arterial disease, stroke and Parkinson's disease. On the basis of its biological advantages, CB can be an ideal source for tissue regeneration. However, in the hype of the so-called 'plasticity', many cell types have been characterized either on cell surface Ag expression alone or by RNA expression only, and without detailed characterization of genetic pathways; frequently, cells are defined without analysis of cellular function in vitro and in vivo, and the definition of the lineage of origin and cells have not been defined in preclinical studies. Here, we explore not only the most consistent data with regard to differentiation of CB cells in vitro and in vivo, but also show technical limitations, such as why in contrast to cell populations isolated from fresh CB, cryopreserved CB is not the ideal source for tissue regeneration. By taking advantage of numerous CB units discarded due to lack of sufficient hematopoietic cells for clinical transplantation, new concepts to produce off-the-shelf products are presented as well.
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Affiliation(s)
- G Kögler
- Institute for Transplantation Diagnostics and Cell Therapeutics, University of Duesseldorf Medical School, Duesseldorf, Germany.
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Jäger M, Zilkens C, Bittersohl B, Krauspe R. Cord blood--an alternative source for bone regeneration. Stem Cell Rev Rep 2009; 5:266-77. [PMID: 19652969 DOI: 10.1007/s12015-009-9083-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2009] [Accepted: 07/20/2009] [Indexed: 12/12/2022]
Abstract
Bone regeneration is one of the best investigated pathways in mesenchymal stromal cell (MSC) biology. Therefore strong efforts have been made to introduce tissue engineering and cell therapeutics as an alternative treatment option for patients with bone defects. This review of the literature gives an overview of MSC biology aiming for clinical application including advantages but also specific challenges and problems which are associated with cord blood derived stromal cell (CB-MSC) as a source for bone regeneration. The use of postnatal CB-MSC is ethically uncomplicated and requires no invasive harvesting procedure. Moreover, most data document a high osteogenic potential of CB-MCS and also low immunoreactivity compared with other MSC types. The expression profile of CB-MSC during osteogenic differentiation shows similarities to that of other MSC types. Within the umbilical cord different MSC types have been characterized which are potent to differentiate into osteoblasts. In contrast to a large number of in vitro investigations there are only few in vivo studies available so far.
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Affiliation(s)
- Marcus Jäger
- Department of Orthopaedics, Heinrich-Heine University Medical School, Moorenstrasse 5, 40225, Düsseldorf, Germany.
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