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Ding L, Razavi Bazaz S, Shrestha J, A. Amiri H, Mas-hafi S, Banerjee B, Vesey G, Miansari M, Ebrahimi Warkiani M. Rapid and Continuous Cryopreservation of Stem Cells with a 3D Micromixer. MICROMACHINES 2022; 13:1516. [PMID: 36144139 PMCID: PMC9500807 DOI: 10.3390/mi13091516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
Cryopreservation is the final step of stem cell production before the cryostorage of the product. Conventional methods of adding cryoprotecting agents (CPA) into the cells can be manual or automated with robotic arms. However, challenging issues with these methods at industrial-scale production are the insufficient mixing of cells and CPA, leading to damage of cells, discontinuous feeding, the batch-to-batch difference in products, and, occasionally, cross-contamination. Therefore, the current study proposes an alternative way to overcome the abovementioned challenges; a highly efficient micromixer for low-cost, continuous, labour-free, and automated mixing of stem cells with CPA solutions. Our results show that our micromixer provides a more homogenous mixing of cells and CPA compared to the manual mixing method, while the cell properties, including surface markers, differentiation potential, proliferation, morphology, and therapeutic potential, are well preserved.
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Affiliation(s)
- Lin Ding
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Sajad Razavi Bazaz
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jesus Shrestha
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Hoseyn A. Amiri
- Micro+Nanosystems & Applied Biophysics Laboratory, Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box 484, Babol 47148-71167, Iran
- Cell Science Research Center, Department of Cancer Medicine, Royan Institute for Stem Cell Biology and Technology, Isar 11, Babol 47138-18983, Iran
| | - Sima Mas-hafi
- Micro+Nanosystems & Applied Biophysics Laboratory, Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box 484, Babol 47148-71167, Iran
- Cell Science Research Center, Department of Cancer Medicine, Royan Institute for Stem Cell Biology and Technology, Isar 11, Babol 47138-18983, Iran
| | | | - Graham Vesey
- Regeneus Ltd., Paddington, Sydney, NSW 2021, Australia
| | - Morteza Miansari
- Micro+Nanosystems & Applied Biophysics Laboratory, Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box 484, Babol 47148-71167, Iran
- Cell Science Research Center, Department of Cancer Medicine, Royan Institute for Stem Cell Biology and Technology, Isar 11, Babol 47138-18983, Iran
| | - Majid Ebrahimi Warkiani
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
- Institute of Molecular Medicine, Sechenov University, 119991 Moscow, Russia
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Erol OD, Pervin B, Seker ME, Aerts-Kaya F. Effects of storage media, supplements and cryopreservation methods on quality of stem cells. World J Stem Cells 2021; 13:1197-1214. [PMID: 34630858 PMCID: PMC8474714 DOI: 10.4252/wjsc.v13.i9.1197] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/21/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023] Open
Abstract
Despite a vast amount of different methods, protocols and cryoprotective agents (CPA), stem cells are often frozen using standard protocols that have been optimized for use with cell lines, rather than with stem cells. Relatively few comparative studies have been performed to assess the effects of cryopreservation methods on these stem cells. Dimethyl sulfoxide (DMSO) has been a key agent for the development of cryobiology and has been used universally for cryopreservation. However, the use of DMSO has been associated with in vitro and in vivo toxicity and has been shown to affect many cellular processes due to changes in DNA methylation and dysregulation of gene expression. Despite studies showing that DMSO may affect cell characteristics, DMSO remains the CPA of choice, both in a research setting and in the clinics. However, numerous alternatives to DMSO have been shown to hold promise for use as a CPA and include albumin, trehalose, sucrose, ethylene glycol, polyethylene glycol and many more. Here, we will discuss the use, advantages and disadvantages of these CPAs for cryopreservation of different types of stem cells, including hematopoietic stem cells, mesenchymal stromal/stem cells and induced pluripotent stem cells.
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Affiliation(s)
- Ozgur Dogus Erol
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, Ankara 06100, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Ankara 06100, Turkey
| | - Burcu Pervin
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, Ankara 06100, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Ankara 06100, Turkey
| | - Mehmet Emin Seker
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, Ankara 06100, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Ankara 06100, Turkey
| | - Fatima Aerts-Kaya
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, Ankara 06100, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Ankara 06100, Turkey
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Miyoshi H, Abo K, Hosoya D, Matsuo K, Utsumi Y. Effects of mouse fetal liver cell culture density on hematopoietic cell expansion in three-dimensional cocultures with stromal cells. Int J Artif Organs 2021; 45:103-112. [PMID: 33611956 DOI: 10.1177/0391398821996377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE An effective ex vivo expansion system of primitive hematopoietic cells (HCs) is required for wider application of hematopoietic stem cell transplantation. In this study, we examined effects of culture density on mouse fetal liver cells (FLCs) used as an HC source for the expansion of primitive HCs in three-dimensional (3D) cocultures with two kinds of mouse stromal cell lines (OP9 or C3H10T1/2). MATERIALS AND METHODS FLCs were seeded at different densities (1, 2, and 10 × 107 cells/cm3) into porous polymer scaffolds with or without stromal cell layers and HCs were expanded in the cultures for 2 weeks without exogenous cytokines. RESULTS Differential effects of culture density on HC expansion were observed between cocultures and solitary FLC controls. In stromal cell cocultures, high expansion of HCs was achieved when FLCs were seeded at low densities. In contrast, the expansion in the controls was enhanced with increasing culture densities. With respect to expansion of primitive HCs existing in the FLCs, cocultures with C3H10T1/2 cells were superior to those with OP9 cells with a 29.3-fold expansion for c-kit+ hematopoietic progenitor cells and 8.3-fold expansion for CD34+ hematopoietic stem cells. In the controls, HC expansion was lower than in any cocultures, demonstrating the advantages of coculturing for HC expansion. CONCLUSION Stromal cell lines are useful in expanding primitive HCs derived from FLCs in 3D cocultures. Culture density is a pivotal factor for the effective expansion of primitive HCs and this effect differs by culture condition.
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Affiliation(s)
- Hirotoshi Miyoshi
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kenji Abo
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Daiki Hosoya
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kazuyuki Matsuo
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshio Utsumi
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Jahan S, Kaushal R, Pasha R, Pineault N. Current and Future Perspectives for the Cryopreservation of Cord Blood Stem Cells. Transfus Med Rev 2021; 35:95-102. [PMID: 33640254 DOI: 10.1016/j.tmrv.2021.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/22/2021] [Accepted: 01/24/2021] [Indexed: 12/29/2022]
Abstract
Hematopoietic stem cell (HSC) transplantation is a well-established procedure for the treatment of many blood related malignancies and disorders. Before transplantation, HSC are collected and cryopreserved until use. The method of cryopreservation should preserve both the number and function of HSC and downstream progenitors responsible for long- and short-term engraftment, respectively. This is especially critical for cord blood grafts, since the cell number associated with this stem cell source is often limiting. Loss of function in cryopreserved cells occurs following cryoinjuries due to osmotic shock, dehydration, solution effects and mechanical damage from ice recrystallization during freezing and thawing. However, cryoinjuries can be reduced by 2 mitigation strategies; the use of cryoprotectants (CPAs) and use of control rate cooling. Currently, slow cooling is the most common method used for the cryopreservation of HSC graft. Moreover, dimethyl-sulfoxide (DMSO) and dextran are popular intracellular and extracellular CPAs used for HSC grafts, respectively. Yet, DMSO is toxic to cells and can cause significant side effects in stem cells' recipients. However, new CPAs and strategies are emerging that may soon replace DMSO. The aim of this review is to summarise key concepts in cryobiology and recent advances in the field of HSC cryobiology. Other important issues that need to be considered are also discussed such as transient warming events and thawing of HSC grafts.
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Affiliation(s)
- Suria Jahan
- Canadian Blood Services, Centre for Innovation, Ottawa, Ontario, Canada; Biochemistry, Microbiology and Immunology department, University of Ottawa, Ottawa, Ontario, Canada
| | - Richa Kaushal
- Canadian Blood Services, Centre for Innovation, Ottawa, Ontario, Canada; Biochemistry, Microbiology and Immunology department, University of Ottawa, Ottawa, Ontario, Canada
| | - Roya Pasha
- Canadian Blood Services, Centre for Innovation, Ottawa, Ontario, Canada
| | - Nicolas Pineault
- Canadian Blood Services, Centre for Innovation, Ottawa, Ontario, Canada; Biochemistry, Microbiology and Immunology department, University of Ottawa, Ottawa, Ontario, Canada.
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Balint B, Pavlovic M, Todorovic M. Rapid Cytoreduction by Plateletapheresis in the Treatment of Thrombocythemia. Platelets 2020. [DOI: 10.5772/intechopen.93158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The objective of this chapter is to provide a systematic overview of current knowledge regarding therapeutic apheresis—primarily therapeutic plateletapheresis (TP)—and to summarize evidence-based practical approaches related to cytapheresis treatment of “hyperthrombocytosis” or “extreme thrombocytosis” (ETC). Our results of platelet (Plt) quantitative/qualitative analyses and evaluation of efficacy of apheresis systems/devices—on the basis of Plt removal and in vivo Plt depletion—will be presented. Our preclinical researches confirmed that in Plt concentrates, the initial ratio of discoid shapes was 70%, spherical 20%, and less valuable (dendritic/balloonized) shapes 10%—with morphological score of platelets (MSP = 300–400). After storage, the ratio of discoid and spherical shapes was decreased, while the less valuable ones progressively increased (MSP = 200). Electron microscopy has shown discoid shapes with typical ultrastructural properties. Spherical shapes with reduced electron density and peripheral location of granules/organelles were detected. Also, dendritic shapes with cytoskeletal “rearrangement,” membrane system integrity damages, and pseudopodia formations were documented. Our clinical study demonstrated that TP was useful in ETC treatment and should help prevention of “thrombo-hemorrhagic” events—until chemotherapy, antiplatelet drugs, and other medication take effect. During TP treatment, Plt count and morphology/ultrastructure were examined. Plt functions by multiplate analyzer were evaluated. We concluded that intensive TP was an effective, safe, and rapid cytoreductive treatment for ET.
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Miyoshi H, Shimizu Y, Yasui Y, Sugiyama S. Expansion of mouse primitive hematopoietic cells in three-dimensional cultures on chemically fixed stromal cell layers. Cytotechnology 2020; 72:741-750. [PMID: 32897481 DOI: 10.1007/s10616-020-00417-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 08/29/2020] [Indexed: 11/27/2022] Open
Abstract
To establish a practical and convenient method to expand hematopoietic cells (HCs), we applied chemically-fixed stromal cell layers formed within three-dimensional (3D) scaffolds to feeder of HC cultures. The HCs were expanded using two successive cultures. First, stromal cells were cultured within porous polymer scaffolds and formed tissue-engineered constructs (TECs); the scaffolds containing stromal cells, were fixed using aldehyde (formaldehyde or glutaraldehyde) or organic solvents (acetone, methanol or ethanol). Second, mouse fetal liver cells (FLCs), as a source of HCs, were cultured on the TECs for 2 weeks, and the effects of fixative solutions on expansion of primitive HCs (c-kit+ and CD34+ cells) were examined. In the cultures on aldehyde-fixed TECs, primitive HCs were expanded 2.5- to 5.1-fold in the cultures on TECs fixed with glutaraldehyde, whereas no expansions were detected in those fixed with formaldehyde. However, we achieved expansion of primitive HCs > fivefold in the cultures using TECs fixed with organic solvents. Among these solvents, the highest expansions-of roughly tenfold-were obtained using acetone fixation. Ethanol-fixed TECs also supported the expansion of the primitive HCs well (6.6- to 8.0-fold). In addition to these sufficient expansions, the procedure and storage of fixed TECs is fairly easy. Thus, HC expansion on chemically-fixed TECs may be a practical method for expanding primitive HCs.
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Affiliation(s)
- Hirotoshi Miyoshi
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Yuichiro Shimizu
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yutaka Yasui
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Satoshi Sugiyama
- Department of Biomedical Engineering, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
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Cryopreservation of peripheral blood mononuclear cells using uncontrolled rate freezing. Cell Tissue Bank 2020; 21:631-641. [PMID: 32809089 DOI: 10.1007/s10561-020-09857-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 08/08/2020] [Indexed: 12/25/2022]
Abstract
Peripheral blood mononuclear cells are widely used as source material for anticancer immunotherapies. The conventional cryopreservation method for peripheral blood mononuclear cells is time-consuming and expansive, which involves controlled rate freezing followed by storage in liquid nitrogen. Instead, the convenient uncontrolled rate freezing cryopreservation method had been reported successfully in peripheral blood hematopoietic stem cells and peripheral blood progenitor cells. Therefore, we hypothesized that uncontrolled rate freezing cooling method maybe also applied to peripheral blood mononuclear cells cryopreservation. In this study, we evaluated the performance of uncontrolled rate freezing and controlled rate freezing cooling methods through cell recovery rate, viability, differentiation potential into cytokine-induced killer cells and the cellular properties of the cultured cytokine-induced killer cells. The results showed similar post-thaw viability and recovery rate in both controlled rate freezing and uncontrolled rate freezing cryopreserved peripheral blood mononuclear cells. Importantly, the uncontrolled rate freezing cryopreserved peripheral blood mononuclear cells exhibited higher growth ratio and earlier cell clustering during ex-vivo cytokine-induced killer cell culture than the controlled rate freezing ones. These two groups of expanded cytokine-induced killer cells also exhibited similar effector cell subset ratio and tumoricidal activity. In general, the performance of cryopreserved peripheral blood mononuclear cells using uncontrolled rate freezing cooling method, with the commercial cryoprotective agent CellBanker 2, was equal or better than the controlled rate freezing method. Our study implied that the combined use of cryoprotective agent CellBanker 2 and uncontrolled rate freezing could be a convenient cryopreservation method for peripheral blood mononuclear cells.
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Balint B, Pavlović M, Todorović M. Stem cells: Haemobiology and clinical data summarising: A critical review. SCRIPTA MEDICA 2020. [DOI: 10.5937/scriptamed51-29953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Stem cells (SC) are the unique and "key-cells" in the human body "working" as a source of producing a large number (proliferation) of mature (differentiation) cells inside different tissues ("cytopoiesis") - while at the same time maintaining the ability to "reproduce" themselves (self-renewal). These events are balanced by interactive signals from the extracellular matrix, as well as microenvironment provided by stromal cells. On the other hand, SC plasticity (so-called "inter-systemic plasticity") is the ability of the most "primitive" (immature) adult SCs to switch to novel identities. The phrase SC plasticity also involves phenotypic potential of these cells, broader than spectrum of phenotypes of differentiated cells in their original tissues. Recent increasing clinical use of cell-mediated therapeutic approaches has resulted in enlarged needs for both, higher quantity of SCs and improved operating procedures during extracorporeal manipulations. The aim of harvesting procedures is to obtain the best SC yield and viability. The goal of optimised cryopreservation is to minimise cellular thermal damages during freeze/thaw process (cryoinjury). Despite the fact that different SC collection, purification and cryopreservation protocols are already in routine use - a lot of problems related to the optimal SC extracorporeal manipulations are still unresolved. The objective of this paper is to provide an integral review of early haemobiological and cryobiological research in the unlimited "SC-field" with emphasis on their entities, recent cell-concepts, extracorporeal manipulative and "graft-engineering" systems. Their therapeutic relevance and efficacy in "conventional" SC transplants or regenerative medicine will be briefly summarised. Finally, in this paper original results will not be pointed out - related to neither SC transplants nor regenerative medicine - but a light will be shed on some of them.
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Mousavi SH, Zarrabi M, Abroun S, Ahmadipanah M, Abbaspanah B. Umbilical cord blood quality and quantity: Collection up to transplantation. Asian J Transfus Sci 2019; 13:79-89. [PMID: 31896912 PMCID: PMC6910041 DOI: 10.4103/ajts.ajts_124_18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 06/16/2019] [Indexed: 11/04/2022] Open
Abstract
Umbilical cord blood (UCB) is an attractive source of hematopoietic stem cells for transplantation in some blood disorders. One of the major factors that influence on transplantation fate is cord blood (CB) cell count, in addition to human leukocyte antigen similarity and CD34+ cell number. Here, we review the factors that could effect on quality and quantity of CBUs. Relevant English-language literatures were searched and retrieved from PubMed using the terms: CB, quality, collection, and transplantation. The numbers of total nucleated cells (TNCs) and CD34+ cells are good indicators of CB quality because they have been associated with engraftment; thereby, whatever the TNCs in a CB unit (CBU) are higher, more likely they led to successful engraftment. Many factors influence the quantity and quality of UCB units that collect after delivery. Some parameters are not in our hands, such as maternal and infant factors, and hence, we cannot change these. However, some other factors are in our authority, such as mode of collection, type and amount of anticoagulant, and time and temperature during collection to postthaw CBUs and freeze-and-thaw procedures. By optimizing the CB collection, we can improve the quantity and quality of UCB for storage and increase the likelihood of its use for transplantation.
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Affiliation(s)
- Seyed Hadi Mousavi
- Department of Hematology, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Zarrabi
- Cord Blood Bank, Royan Stem Cell Technology Institute, Tehran, Iran
| | - Saeid Abroun
- Department of Hematology, School of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Mona Ahmadipanah
- Cord Blood Bank, Royan Stem Cell Technology Institute, Tehran, Iran
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Vanegas D, Triviño L, Galindo C, Franco L, Salguero G, Camacho B, Perdomo-Arciniegas AM. A new strategy for umbilical cord blood collection developed at the first Colombian public cord blood bank increases total nucleated cell content. Transfusion 2017; 57:2225-2233. [PMID: 28653354 DOI: 10.1111/trf.14190] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/05/2017] [Accepted: 05/06/2017] [Indexed: 12/16/2023]
Abstract
BACKGROUND The total nucleated cell dosage of umbilical cord blood (UCB) is an important factor in determining successful allogeneic hematopoietic stem cell transplantation after a minimum human leukocyte antigen donor-recipient match. The northern South American population is in need of a new-generation cord blood bank that cryopreserves only units with high total nucleated cell content, thereby increasing the likelihood of use. Colombia set up a public cord blood bank in 2014; and, as a result of its research for improving high total nucleated cell content, a new strategy for UCB collection was developed. STUDY DESIGN AND METHODS Data from 2933 collected and 759 cryopreserved cord blood units between 2014 and 2015 were analyzed. The correlation of donor and collection variables with cellularity was evaluated. Moreover, blood volume, cell content, CD34+ count, clonogenic capacity, and microbial contamination were assessed comparing the new method, which combines in utero and ex utero techniques, with the conventional strategies. RESULTS Multivariate analysis confirmed a correlation between neonatal birth weight and cell content. The new collection method increased total nucleated cell content in approximately 26% and did not alter pre-cryopreservation and post-thaw cell recovery, viability, or clonogenic ability. Furthermore, it showed a remarkably low microbial contamination rate (1.2%). CONCLUSION The strategy for UCB collection developed at the first Colombian public cord blood bank increases total nucleated cell content and does not affect unit quality. The existence of this bank is a remarkable breakthrough for Latin-American patients in need of this kind of transplantation.
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Affiliation(s)
| | | | | | | | - Gustavo Salguero
- Cell Therapy Unit, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud, Bogotá Distrito Capital, Colombia
| | - Bernardo Camacho
- Cord Blood Bank
- Cell Therapy Unit, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud, Bogotá Distrito Capital, Colombia
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Armson BA, Allan DS, Casper RF. Sang de cordon ombilical : Counseling, prélèvement et mise en banque. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2017; 38:S724-S739. [PMID: 28063576 DOI: 10.1016/j.jogc.2016.09.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Armson BA, Allan DS, Casper RF. Umbilical Cord Blood: Counselling, Collection, and Banking. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2016; 37:832-844. [PMID: 26605456 DOI: 10.1016/s1701-2163(15)30157-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To review current evidence regarding umbilical cord blood counselling, collection, and banking and to provide guidelines for Canadian health care professionals regarding patient education, informed consent, procedural aspects, and options for cord blood banking in Canada. OPTIONS Selective or routine collection and banking of umbilical cord blood for future stem cell transplantation for autologous (self) or allogeneic (related or unrelated) treatment of malignant and non-malignant disorders in children and adults. Cord blood can be collected using in utero or ex utero techniques. OUTCOMES Umbilical cord blood counselling, collection, and banking, education of health care professionals, indications for cord blood collection, short- and long-term risk and benefits, maternal and perinatal morbidity, parental satisfaction, and health care costs. EVIDENCE Published literature was retrieved through searches of Medline and PubMed beginning in September 2013 using appropriate controlled MeSH vocabulary (fetal blood, pregnancy, transplantation, ethics) and key words (umbilical cord blood, banking, collection, pregnancy, transplantation, ethics, public, private). Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. There were no date limits, but results were limited to English or French language materials. Searches were updated on a regular basis and incorporated in the guideline to September 2014. Grey (unpublished) literature was identified through searching the websites of health technology assessment and health technology-related agencies, clinical practice guideline collections, and national and international medical specialty societies. VALUES The quality of evidence in this document was rated using the criteria described in the Report of the Canadian Task Force on Preventive Health Care (Table 1). BENEFITS, HARMS, AND COSTS Umbilical cord blood is a readily available source of hematopoetic stem cells used with increasing frequency as an alternative to bone marrow or peripheral stem cell transplantation to treat malignant and non-malignant conditions in children and adults. There is minimal harm to the mother or newborn provided that priority is given to maternal/newborn safety during childbirth management. Recipients of umbilical cord stem cells may experience graft-versus-host disease, transfer of infection or genetic abnormalities, or therapeutic failure. The financial burden on the health system for public cord blood banking and on families for private cord blood banking is considerable. Recommendations 1. Health care professionals should be well-informed about cord blood collection and storage and about factors that influence the volume, quality, and ability to collect a cord blood unit. (III-A) 2. Health care professionals caring for women and families who choose private umbilical cord blood banking must disclose any financial interests or potential conflicts of interest. (III-A) 3. Pregnant women should be provided with unbiased information about umbilical cord blood banking options, including the benefits and limitations of public and private banks. (III-A) 4. Health care professionals should obtain consent from mothers for the collection of umbilical cord blood prior to the onset of active labour, ideally during the third trimester, with ample time to address any questions. (III-A) 5. Health care professionals must be trained in standardized procedures (ex utero and in utero techniques) for cord blood collection to ensure the sterility and quality of the collected unit. (II-2A) 6. Umbilical cord blood should be collected with the goal of maximizing the content of hematopoietic progenitors through the volume collected. The decision to bank the unit will depend upon specific measures of graft potency. (II-2A) 7. Umbilical cord blood collection must not adversely affect the health of the mother or newborn. Cord blood collection should not interfere with delayed cord clamping. (III-E) 8. Health care professionals should inform pregnant women and their partners of the benefits of delayed cord clamping and of its impact on cord blood collection and banking. (II-2A) 9. Cord blood units collected for public or private banking can be used for biomedical research, provided consent is obtained, when units cannot be banked or when consent for banking is withdrawn. (II-3B) 10. Mothers may be approached to donate cells for biomedical research. Informed consent for research using cord blood should ideally be obtained prior to the onset of active labour or elective Caesarean section following established research ethics guidelines. (II-2A).
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Smagur A, Mitrus I, Ciomber A, Panczyniak K, Fidyk W, Sadus-Wojciechowska M, Holowiecki J, Giebel S. Comparison of the cryoprotective solutions based on human albumin vs. autologous plasma: its effect on cell recovery, clonogenic potential of peripheral blood hematopoietic progenitor cells and engraftment after autologous transplantation. Vox Sang 2015; 108:417-24. [DOI: 10.1111/vox.12238] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 10/15/2014] [Accepted: 11/29/2014] [Indexed: 12/30/2022]
Affiliation(s)
- A. Smagur
- Department of Bone Marrow Transplantation and Oncohematology; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
| | - I. Mitrus
- Department of Bone Marrow Transplantation and Oncohematology; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
| | - A. Ciomber
- Department of Bone Marrow Transplantation and Oncohematology; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
| | - K. Panczyniak
- Analytics and Clinical Biochemistry Department; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
| | - W. Fidyk
- Department of Bone Marrow Transplantation and Oncohematology; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
| | - M. Sadus-Wojciechowska
- Department of Bone Marrow Transplantation and Oncohematology; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
| | - J. Holowiecki
- Department of Bone Marrow Transplantation and Oncohematology; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
| | - S. Giebel
- Department of Bone Marrow Transplantation and Oncohematology; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch; Gliwice Poland
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Jawdat D, Arab S, Thahery H, Almashaqbeh W, Alaskar A, Hajeer AH. Improving cord blood unit quantity and quality at King Abdullah International Medical Research Center Cord Blood Bank. Transfusion 2014; 54:3127-30. [PMID: 24912588 DOI: 10.1111/trf.12746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 03/02/2014] [Accepted: 04/11/2014] [Indexed: 11/26/2022]
Abstract
BACKGROUND Public cord blood banks (CBBs) store cord blood unit (CBU) donations for anyone in need. However, strict regulations need to be followed to build up high-quality bank products that can be used worldwide. We established a public CBB at a tertiary hospital in Saudi Arabia. Here, we investigated the reasons behind rejecting or not collecting CBUs over 2 years (2011-2012) and which steps were implemented to improve the number and quality of storable units. STUDY DESIGN AND METHODS A total of 2891 mothers were evaluated. Reasons for rejecting donors, not collecting, and rejecting units before or after collection were analyzed and compared for the years 2011 and 2012. RESULTS A total of 1157 (40%) CBUs were not collected, mainly due to staff availability, and 564 (20%) CBUs were rejected. The main reason for rejecting donations was the mother's or neonate's health. Rejecting CBUs after collection was due to low volume. A total of 1170 (40%) CBUs were successfully collected for potential banking and sent for processing; however, 58% were rejected in the laboratory due to low total nucleated cell counts. Several changes were implemented during the 2 years including physician education and awareness, in utero collection, cesarean collection, and staff recruitment. These changes positively affected the numbers of our collected units. Out of the initially eligible mothers in 2011, only 17% were banked; this was increased to 33% in 2012. CONCLUSIONS We identified the problems with collecting CBUs for banking and will keep improving our selection process of recruiting more CBUs of high quality.
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Affiliation(s)
- Dunia Jawdat
- Cord Blood Bank, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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15
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Jaime-Pérez JC, Monreal-Robles R, Rodríguez-Romo LN, Mancías-Guerra C, Herrera-Garza JL, Gómez-Almaguer D. Evaluation of volume and total nucleated cell count as cord blood selection parameters: a receiver operating characteristic curve modeling approach. Am J Clin Pathol 2011; 136:721-6. [PMID: 22031310 DOI: 10.1309/ajcpfb6exo7bjvlr] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
The objective of the study was to evaluate the current standard practice of using volume and total nucleated cell (TNC) count for the selection of cord blood (CB) units for cryopreservation and further transplantation. Data on 794 CB units whose CD34+ cell content was determined by flow cytometry were analyzed by using a receiver operating characteristic (ROC) curve model to validate the performance of volume and TNC count for the selection of CB units with grafting purposes. The TNC count was the best parameter to identify CB units having 2 × 10(6) or more CD34+ cells, with an area under the ROC curve of 0.828 (95% confidence interval, 0.800-0.856; P < .01) and an efficiency of 75.4%. Combination of parameters (TNC/mononuclear cells [MNCs], efficiency 74.7%; TNC/volume, efficiency 68.9%; and volume/MNCs, efficiency 68.3%) did not lead to improvement in CB selection. All CB units having a TNC count of 8 × 10(8) or more had the required CD34+ cell dose for patients weighing 10 kg or less.
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Affiliation(s)
- José C. Jaime-Pérez
- Hematology Department, Internal Medicine Division, “Dr. José Eleuterio González” University Hospital of the School of Medicine of the Autonomous University of Nuevo León, Monterrey, México
| | - Roberto Monreal-Robles
- Hematology Department, Internal Medicine Division, “Dr. José Eleuterio González” University Hospital of the School of Medicine of the Autonomous University of Nuevo León, Monterrey, México
| | - Laura N. Rodríguez-Romo
- Hematology Department, Internal Medicine Division, “Dr. José Eleuterio González” University Hospital of the School of Medicine of the Autonomous University of Nuevo León, Monterrey, México
| | - Consuelo Mancías-Guerra
- Hematology Department, Internal Medicine Division, “Dr. José Eleuterio González” University Hospital of the School of Medicine of the Autonomous University of Nuevo León, Monterrey, México
| | - José Luís Herrera-Garza
- Hematology Department, Internal Medicine Division, “Dr. José Eleuterio González” University Hospital of the School of Medicine of the Autonomous University of Nuevo León, Monterrey, México
| | - David Gómez-Almaguer
- Hematology Department, Internal Medicine Division, “Dr. José Eleuterio González” University Hospital of the School of Medicine of the Autonomous University of Nuevo León, Monterrey, México
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Effects of CXCR1 and CXCR2 inhibition on expansion and differentiation of umbilical cord blood CD133+ cells into megakaryocyte progenitor cells. Cytokine 2011; 55:181-7. [DOI: 10.1016/j.cyto.2011.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 03/07/2011] [Accepted: 04/20/2011] [Indexed: 11/19/2022]
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17
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Aghideh AN, Kheirandish M, Abolghasemi H, Gharehbaghian A. Platelet growth factors suppress ex vivo expansion and enhance differentiation of umbilical cord blood CD133+ stem cells to megakaryocyte progenitor cells. Growth Factors 2010; 28:409-16. [PMID: 20854188 DOI: 10.3109/08977194.2010.504722] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND OBJECTIVES Umbilical cord blood (UCB) is a rich source of hematopoietic cells. Here, for the first time, we surveyed the effects of different concentrations of platelet growth factors and cytokine cocktail (CC) on the expansion and differentiation of UCB CD133(+) stem cells into megakaryocyte progenitors. MATERIALS AND METHODS UCB CD133(+) cells were separated by magnetic cell sorting and cultured in different concentrations of platelet growth factors in combination with a CC containing interleukins 3 and 6, stem cell factor, and thrombopoietin. Cell expansion and differentiation were assessed using mononuclear cell count and flow cytometry. RESULTS The results show that either activated platelet-rich plasma or the platelet supernatant, when added in the first day of culture, significantly suppress the expansion of CD133(+) cells after 7 days in culture (p < 0.05). By contrast, the expression of CD41, CD61, and CD42b markers in the presence of all platelet growth factors increased compared with that of the control (p < 0.05). CONCLUSION Taken together, platelet growth factors in the presence of CC suppress ex vivo expansion of UCB CD133(+) cells and enhance their differentiation into megakaryocytic progenitor cells in a dose- and time-dependent manner.
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18
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Son JH, Heo YJ, Park MY, Kim HH, Lee KS. Optimization of cryopreservation condition for hematopoietic stem cells from umbilical cord blood. Cryobiology 2010; 60:287-92. [PMID: 20138169 DOI: 10.1016/j.cryobiol.2010.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 01/27/2010] [Accepted: 01/29/2010] [Indexed: 02/07/2023]
Abstract
The conditions for cryopreservation of CD34(+) hematopoietic stem cells (HSC) from umbilical cord blood (UCB) were optimized with a new cryo-medium containing 10% ethylene glycol (EG) and 2% dimethyl sulfoxide (Me(2)SO) using a controlled-rate freezing (CRF) method. After the cryopreservation of mononuclear cells (MNC) from UCB, recoveries of MNC, CD34(+) cells, and total colony-forming units (CFU) were significantly improved compared to those in the control cryo-medium containing 10% Me(2)SO and 2% Dextran-40 (P<0.05). This study shows that the new cryo-medium and CRF method provide better recoveries of MNC, HSC and total CFU than the control cryo-medium and isopropylalcohol freezing (IPA) method. Therefore, this cryo-medium, combined with the CRF method, is valuable for optimizing cryopreservation conditions for HSC from UCB to obtain satisfactory HSC recovery.
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Affiliation(s)
- Jeong Hwa Son
- Binex Research Institute, Binex Co. Ltd., 480-2, Jangrim-dong, Saha-gu, Busan 604-846, Republic of Korea.
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Avila Portillo LM, Guzmán J, Rojas C, Becerra A, Avila J, Jaimes D, Ospino B, Gomez C, Madero JI. Viability and functional capacity after thawing of hematopoietic progenitor cells cryopreserved at a cord blood stem cell bank in Colombia. Int J Gynaecol Obstet 2010; 109:151-4. [PMID: 20096837 DOI: 10.1016/j.ijgo.2009.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Revised: 11/10/2009] [Accepted: 12/10/2009] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the viability and functional capacity of hematopoietic progenitor cells from cord blood samples cryopreserved at the Banco de Células Stem de Colombia. METHODS After thawing and centrifugation of 20 samples, viable white blood cells were numbered by the trypan blue method and CD34(+)CD45(+dim) hematopoietic progenitor cells were numbered by flow cytometry. Clonogenic assays also tested the functional capacity of viable CD34(+)CD45(+dim) cells. RESULTS The median rates of viable CD34(+)CD45(+dim) cells were 99.6% before freezing and 73.0% after thawing (P<0.001). The 20 cultures yielded a median of 12 cells with a lineage of red cells, 17.5 cells with a lineage of white cells, and 10 cells with a mixed lineage. CONCLUSION Although the rate of viable CD34(+)CD45(+dim) cells was decreased by 26.6% after thawing by the method we used, the numbers of CD34(+)CD45(+dim) cells that formed colonies were similar to those obtained by other published methods.
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21
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Katsares V, Petsa A, Felesakis A, Paparidis Z, Nikolaidou E, Gargani S, Karvounidou I, Ardelean KA, Grigoriadis N, Grigoriadis J. A Rapid and Accurate Method for the Stem Cell Viability Evaluation: The Case of the Thawed Umbilical Cord Blood. Lab Med 2009. [DOI: 10.1309/lmle8bvhywct82cl] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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22
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Koestenbauer S, Zisch A, Dohr G, Zech NH. Protocols for hematopoietic stem cell expansion from umbilical cord blood. Cell Transplant 2009; 18:1059-68. [PMID: 19523346 DOI: 10.3727/096368909x471288] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The reconstitution of adult stem cells may be a promising source for the regeneration of damaged tissues and for the reconstitution of organ dysfunction. However, there are two major limitations to the use of such cells: they are rare, and only a few types exist that can easily be isolated without harming the patient. The best studied and most widely used stem cells are of the hematopoietic lineage. Pioneering work on hematopoietic stem cell (HSC) transplantation was done in the early 1970s by ED. Thomas and colleagues. Since then HSCs have been used in allogenic and autologous transplantation settings to reconstitute blood formation after high-dose chemotherapy for various blood disorders. The cells can be easily harvested from donors, but the cell number is limited, especially when the HSCs originate from umbilical cord blood (UCB). It would be desirable to set up an ex vivo strategy to expand HSCs in order to overcome the cell dose limit, whereby the expansion would favor cell proliferation over cell differentiation. This review provides an overview of the various existing HSC expansion strategies-focusing particularly on stem cells derived from UCB-of the parameters that might affect the outcome, and of the difficulties that may occur when trying to expand such cells.
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Affiliation(s)
- Sonja Koestenbauer
- Institute for Cell Biology, Histology and Embryology, Centre of Molecular Medicine, Medical University of Graz, 8010 Graz, Austria.
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23
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[Stem cells use in the treatment of neurologic disorders--has the future already arrived?]. VOJNOSANIT PREGL 2008; 65:473-80. [PMID: 18672705 DOI: 10.2298/vsp0806473o] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
<zakljucak> Buducnost celijske terapije u lecenju neuroloskih bolesti je pocela. Ostaju vazna pitanja na koja odgovor mogu dati samo dobro osmisljene medjunarodne studije, a ticu se vrste celija, nacina njihovog umnozavanja i aplikacije, kao i optimalnog vremenskog okvira za ovakvu vrstu lecenja.
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Stem cell harvesting protocol research in autologous transplantation setting: Large volume vs. conventional cytapheresis. VOJNOSANIT PREGL 2008; 65:545-51. [DOI: 10.2298/vsp0807545b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background/Aim. The use of peripheral blood as a source of hematopoietic stem cells (SCs) is progressively increasing and has nearly supplanted bone marrow transplantation. Interpatient variability in the degree and kinetics of SC mobilization into peripheral blood is an expected event after conventional chemotherapy-based treatment, followed by sequential administration of recombinant granulocyte-colony- stimulating factor (rHu-CSF). In this study, specific factors associated with the application of two different SC-harvesting approaches, including the use of large volume leukapheresis (LVL) vs. repetitive conventional apheresis (RCA), were analyzed. The basic goal of the study was to evaluate the influence of apheresis protocol (collection timing, processed blood volume and cell yield) upon the clinical outcome of transplantation. Methods. Results obtained by LVL (76 pts) and RCA (20 pts - control group) were compared. The SC mobilizing regimen used was cyclophosphamide (4-7 g/m2) or polychemotherapy and rHuG-CSF 10-16 ?g/kg of body mess (bm) per day. Cell harvesting was performed using COBE-Spectra (Caridian-BCT, USA). The volume of processed blood in LVL setting was ? 3.5 - fold of the patient's circulating blood quantity (ranged from 12.7 to 37.8 l). All patients tolerated well the use of intensive treatment, without any side or adverse effects. Our original controlled-rate cryopreservation was carried out with 10% dimethyl sulfoxide (DMSO) using Planer R203/200R or Planer 560-16 equipments (Planer Products Ltd, UK). Total nucleated cell (NC) and mononuclear cell (MNC) counts were examined by flow cytometry (Advia-2120 Bayer, Germany; Technicon H-3 System, USA). The CD34+ cell surface antigen was investigated by the EPICS XL-MCL device (Coulter, Germany). Results. Performing LVL-apheresis, high-level MNC and CD34+ cell yields (7.6?4.6 ? 108/kg bm and 11.8?6.5 ? 106/kg bm, respectively) were obtained. As a result, rapid hematopoietic reconstitution ("graft-healing") - on the 9.4th and 12.4th day for granulocytes and platelets, respectively was achieved. Using repetitive conventional apheresis (2-3 procedures), the total MNC count was high (8.2?7.0 ? 108/kg bm), but the total CD34+ yield was lower 10.8?9.9 due to inferior CD34+ vs. MNC ratio. Conclusion. The results obtained suggest that well-timed LVL-apheresis increased SC-yield in cell harvest, resulting in faster bone marrow repopulation and hematological reconstitution, as well as better overall clinical outcome of transplantation. These results necessitate additional examinations of CD34+ subsets ratio in cell harvest.
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25
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Parolini O, Alviano F, Bagnara GP, Bilic G, Bühring HJ, Evangelista M, Hennerbichler S, Liu B, Magatti M, Mao N, Miki T, Marongiu F, Nakajima H, Nikaido T, Portmann-Lanz CB, Sankar V, Soncini M, Stadler G, Surbek D, Takahashi TA, Redl H, Sakuragawa N, Wolbank S, Zeisberger S, Zisch A, Strom SC. Concise review: isolation and characterization of cells from human term placenta: outcome of the first international Workshop on Placenta Derived Stem Cells. Stem Cells 2007; 26:300-11. [PMID: 17975221 DOI: 10.1634/stemcells.2007-0594] [Citation(s) in RCA: 726] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Placental tissue draws great interest as a source of cells for regenerative medicine because of the phenotypic plasticity of many of the cell types isolated from this tissue. Furthermore, placenta, which is involved in maintaining fetal tolerance, contains cells that display immunomodulatory properties. These two features could prove useful for future cell therapy-based clinical applications. Placental tissue is readily available and easily procured without invasive procedures, and its use does not elicit ethical debate. Numerous reports describing stem cells from different parts of the placenta, using nearly as numerous isolation and characterization procedures, have been published. Considering the complexity of the placenta, an urgent need exists to define, as clearly as possible, the region of origin and methods of isolation of cells derived from this tissue. On March 23-24, 2007, the first international Workshop on Placenta Derived Stem Cells was held in Brescia, Italy. Most of the research published in this area focuses on mesenchymal stromal cells isolated from various parts of the placenta or epithelial cells isolated from amniotic membrane. The aim of this review is to summarize and provide the state of the art of research in this field, addressing aspects such as cell isolation protocols and characteristics of these cells, as well as providing preliminary indications of the possibilities for use of these cells in future clinical applications.
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Affiliation(s)
- Ornella Parolini
- Centro di Ricerca E. Menni, Fondazione Poliambulanza, Istituto Ospedaliero, Via Bissolati 57, 25124 Brescia, Italy.
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Woods EJ, Pollok KE, Byers MA, Perry BC, Purtteman J, Heimfeld S, Gao D. Cord Blood Stem Cell Cryopreservation. Transfus Med Hemother 2007. [DOI: 10.1159/000104183] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Balint B, Stamatović D, Todorović M, Jevtić M, Ostojić G, Pavlović M, Lojpur Z, Jocić M. Stem cells in the arrangement of bone marrow repopulation and regenerative medicine. VOJNOSANIT PREGL 2007; 64:481-4. [PMID: 17821924 DOI: 10.2298/vsp0707481b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Bela Balint
- Military Medical Academy, Institute of Transfusiology, Belgrade, Serbia.
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