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Sharma R, Prakash S, Jain A, Pahwa D, Kalra J. Maternal and neonatal variables affecting CD34+ cell count in the umbilical cord blood. JOURNAL OF APPLIED HEMATOLOGY 2022. [DOI: 10.4103/joah.joah_68_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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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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Pasha R, Halpenny M, Pineault N. Overcoming the deceptively low viability of CD45 + cells in thawed cord blood unit segments. Vox Sang 2019; 114:876-883. [PMID: 31625187 DOI: 10.1111/vox.12844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 07/23/2019] [Accepted: 08/13/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVES There is no standard methodology for post-thaw sample preparation for viability analysis of umbilical cord blood units (CBU). A common challenge faced by CB bank is for their product to meet the post-thaw cell viability threshold for CD45+ cells set at 40% by NetCord-FACT. The objective of this work was to improve the post-thaw staining method to maximize CD45+ cell viability so that clinically valuable samples meet the NetCord-FACT threshold criteria for CD45+ and CD34+ cell viabilities. MATERIALS AND METHODS Samples of CBU buffy coats and CBU segments were thawed and taken for staining. Various parameters were evaluated on CD45+ and CD34+ cell viability as measured by 7-actinomycin D (7-AAD) staining. RESULTS The results revealed that initiating the staining at 20 min post-thaw instead of 30, shortening the red cell lysis treatment, or performing lysis on ice and removing this step all together, all improved the viability of CD45+ cells. Using CBU segments, it was shown that the most effective approach in increasing the viability of CD45+ cells was the complete omission of red cell lysis step. However, removal of the lysis step can create technical artefacts during flow cytometry acquisition that results in an underestimation of the viability of CD34+ cells. This can be avoided and CD34+ cell viability restored with additional thresholding on CD45 signal. CONCLUSION CB CD45+ cells are sensitive to red cell lysis treatment post-thaw; omission of this step provides the best viability and ultimately better reflects the quality of cells used for transplantation.
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Affiliation(s)
- Roya Pasha
- Centre for Innovation, Canadian Blood Services, Ottawa, ON, Canada
| | - Mike Halpenny
- Cord Blood Bank and Stem Cell Manufacturing, Canadian Blood Services, Ottawa, ON, Canada
| | - Nicolas Pineault
- Centre for Innovation, Canadian Blood Services, Ottawa, ON, Canada.,Biochemistry, Microbiology and Immunology Department, University of Ottawa, Ottawa, ON, Canada
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Vanegas D, Galindo CC, Páez-Gutiérrez IA, González-Acero LX, Medina-Valderrama PT, Lozano JC, Camacho-Rodríguez B, Perdomo-Arciniegas AM. Human Leukocyte Antigen and Red Blood Cells Impact Umbilical Cord Blood CD34 + Cell Viability after Thawing. Int J Mol Sci 2019; 20:E4875. [PMID: 31575081 PMCID: PMC6801469 DOI: 10.3390/ijms20194875] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/21/2019] [Accepted: 09/25/2019] [Indexed: 11/17/2022] Open
Abstract
Hematopoietic progenitor cell (HPC) transplantation is a treatment option for malignant and nonmalignant diseases. Umbilical cord blood (UCB) is an important HPC source, mainly for pediatric patients. It has been demonstrated that human leukocyte antigen (HLA) matching and cell dose are the most important features impacting clinical outcomes. However, UCB matching is performed using low resolution HLA typing and it has been demonstrated that the unnoticed mismatches negatively impact the transplant. Since we found differences in CD34+ viability after thawing of UCB units matched for two different patients (p = 0.05), we presumed a possible association between CD34+ cell viability and HLA. We performed a multivariate linear model (n = 67), comprising pre-cryopreservation variables and high resolution HLA genotypes separately. We found that pre-cryopreservation red blood cells (RBC), granulocytes, and viable CD34+ cell count significantly impacted CD34+ viability after thawing, along with HLA-B or -C (R2 = 0.95, p = 0.01; R2 = 0.56, p = 0.007, respectively). Although HLA-B*40:02 may have a negative impact on CD34+ cell viability, RBC depletion significantly improves it.
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Affiliation(s)
- Diana Vanegas
- Specialized researcher, Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
| | - Cristian-Camilo Galindo
- Specialized researcher, Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
| | - Iván-Aurelio Páez-Gutiérrez
- Specialized researcher, Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
| | - Lorena-Xiomara González-Acero
- Specialized researcher, Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
| | - Pavel-Tiberio Medina-Valderrama
- Specialized researcher, Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
| | - Juan-Camilo Lozano
- Specialized researcher, Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
| | - Bernardo Camacho-Rodríguez
- Director, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
| | - Ana-María Perdomo-Arciniegas
- Scientific leader, Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud. Cra. 32 # 12-81, 111611 Bogotá, Colombia.
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Varan HD, Bay M, Ozturk A, Dalva K, İlhan O. Comparison of the methods evaluating post thawing viability of peripheral blood stem cell graft. Transfus Apher Sci 2019; 58:192-195. [PMID: 30928229 DOI: 10.1016/j.transci.2019.03.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/23/2019] [Accepted: 03/08/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Reliable and pratique methods are essential for rapid and accurate determination of post thawing viability of peripheral blood stem cell (PBSC) graft before hematopoietic stem cell transplantation. In this study, Trypan Blue (TP) Eosin Y (EO), and Acridine-orange-ethidium bromide (AO/EB), which are of the methods commonly used for the assessment of viability in clinic practice, were compared with the flow cytometry-7AAD (7AAD) method, which is a more sensitive method. The aim of this study is to examine which method evaluates postthawing viability in a more compatible manner with 7AAD. MATERIALS-METHODS Postthawing viability rates were examined simultaneously by means of four different methods before hematopoietic stem cell transplantation in a total of 20 PBSC graft. The results obtained from the AO/EB, TP, EO methods were evaluated with the flow cytometry-7AAD in terms of concordance. RESULTS The AO / EB was determined to be the method having the best concordance with the flow cytometry-7AAD method. Although, at a lower level compared to the AO/EB method, the EO method had a statistically significant concordance with the flow cytometry-7AAD method. No statistically significant concordance was detected between the TP method and 7AAD method in terms of viability results. CONCLUSION The AO/EB method was identified to be the method having the best compatibility with the flow cytometry -7AAD method in showing the viability of the cryopreserved PBSC graft. In the viability assessment of PBCS graft using light microscopy, the EO may be preferred since is more sensitive compared to the TP method.
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Affiliation(s)
- Hacer Dogan Varan
- Ankara University Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey.
| | - Meltem Bay
- Ankara University Faculty of Medicine, Department of Hematology and BMT Unit, Therapeutic Apheresis Unit, Ankara, Turkey
| | - Aydin Ozturk
- Ankara University Faculty of Medicine, Department of Hematology and BMT Unit, Stem Cell Research Institute, Ankara, Turkey
| | - Klara Dalva
- Ankara University Faculty of Medicine, Department of Hematology and BMT Unit, Stem Cell Research Institute, Ankara, Turkey
| | - Osman İlhan
- Ankara University Faculty of Medicine, Department of Hematology and BMT Unit, Ankara, Turkey
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Galindo CC, Vanegas Lozano DM, Camacho Rodríguez B, Perdomo-Arciniegas AM. Improved cord blood thawing procedure enhances the reproducibility and correlation between flow cytometry CD34 + cell viability and clonogenicity assays. Cytotherapy 2018; 20:891-894. [DOI: 10.1016/j.jcyt.2018.03.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/26/2018] [Accepted: 03/27/2018] [Indexed: 10/17/2022]
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Mousavi SH, Abroun S, Zarrabi M, Ahmadipanah M. The effect of maternal and infant factors on cord blood yield. Pediatr Blood Cancer 2017; 64. [PMID: 27905684 DOI: 10.1002/pbc.26381] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 11/05/2016] [Accepted: 11/07/2016] [Indexed: 11/11/2022]
Abstract
Umbilical cord blood (CB) can be used as an alternative hematopoietic stem cell source for transplantation in hematological malignancy and blood disorders. The success of transplantation is highly related to the levels of total nucleated cell and CD34+ cell counts. The evaluation of optimal conditions can decrease the rate of graft rejection due to low cell count and increases the quality of CB units (CBUs) in the blood bank and the success rate of engraftment. To this end, we review the maternal and infant parameters affecting the quality and quantity of CBUs.
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Affiliation(s)
- Seyed Hadi Mousavi
- Department of Hematology, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeid Abroun
- Department of Hematology, School of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Morteza Zarrabi
- Royan Stem Cell Technology Institute, Cord Blood Bank, Tehran, Iran
| | - Mona Ahmadipanah
- Royan Stem Cell Technology Institute, Cord Blood Bank, Tehran, Iran
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Pasha R, Elmoazzen H, Pineault N. Development and testing of a stepwise thaw and dilute protocol for cryopreserved umbilical cord blood units. Transfusion 2017; 57:1744-1754. [DOI: 10.1111/trf.14136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 03/08/2017] [Accepted: 03/13/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Roya Pasha
- Canadian Blood Services, Centre for Innovation
| | - Heidi Elmoazzen
- Cord Blood Bank and Stem Cell Manufacturing; Canadian Blood Services
| | - Nicolas Pineault
- Canadian Blood Services, Centre for Innovation
- Department of Biochemistry, Microbiology and Immunology Department; University of Ottawa; Ottawa Ontario Canada
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Roura S, Pujal JM, Gálvez-Montón C, Bayes-Genis A. Quality and exploitation of umbilical cord blood for cell therapy: Are we beyond our capabilities? Dev Dyn 2016; 245:710-7. [PMID: 27043849 DOI: 10.1002/dvdy.24408] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 03/03/2016] [Accepted: 03/29/2016] [Indexed: 02/06/2023] Open
Abstract
There is increasing interest in identifying novel stem cell sources for application in emerging cell therapies. In this context, umbilical cord blood (UCB) shows great promise in multiple clinical settings. The number of UCB banks has therefore increased worldwide, with the objective of preserving potentially life-saving cells that are usually discarded after birth. After a rather long and costly processing procedure, the resultant UCB-derived cell products are cryopreserved until transplantation to patients. However, in many cases, only a small proportion of administered cells engraft successfully. Thus, can we do any better regarding current UCB-based therapeutic approaches? Here we discuss concerns about the use of UCB that are not critically pondered by researchers, clinicians, and banking services, including wasting samples with small volumes and the need for more reliable quality and functional controls to ensure the biological activity of stem cells and subsequent engraftment and treatment efficacy. Finally, we appeal for collaborative agreements between research institutions and UCB banks in order to redirect currently discarded small-volume UCB units for basic and clinical research purposes. Developmental Dynamics 245:710-717, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Santiago Roura
- Heart Failure and Cardiac Regeneration (ICREC) Research Program, Germans Trias i Pujol Health Science Research Institute, Can Ruti Campus, Crta.Can Ruti-Camí Escoles s/n, 08916, Badalona, Spain
- Center of Regenerative Medicine in Barcelona, c/ Dr. Aiguader 88, 08003, Barcelona, Spain
| | - Josep Maria Pujal
- Cell Processing Laboratory, Edifici Giroemprèn, Pic de Peguera 11, Parc Científic i Tecnològic Universitat de Girona, 17003, Girona, Spain
| | - Carolina Gálvez-Montón
- Heart Failure and Cardiac Regeneration (ICREC) Research Program, Germans Trias i Pujol Health Science Research Institute, Can Ruti Campus, Crta.Can Ruti-Camí Escoles s/n, 08916, Badalona, Spain
| | - Antoni Bayes-Genis
- Heart Failure and Cardiac Regeneration (ICREC) Research Program, Germans Trias i Pujol Health Science Research Institute, Can Ruti Campus, Crta.Can Ruti-Camí Escoles s/n, 08916, Badalona, Spain
- Cardiology Service, Germans Trias i Pujol University Hospital, Crta.Can Ruti-Camí Escoles s/n, 08916, Badalona, Spain
- Department of Medicine, Crta. Can Ruti-Camí Escoles s/n, Universitat Autònoma de Barcelona, 08916, Badalona, Spain
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Patterson J, Moore CH, Palser E, Hearn JC, Dumitru D, Harper HA, Rich IN. Detecting primitive hematopoietic stem cells in total nucleated and mononuclear cell fractions from umbilical cord blood segments and units. J Transl Med 2015; 13:94. [PMID: 25784613 PMCID: PMC4374586 DOI: 10.1186/s12967-015-0434-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 02/11/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rare hematopoietic stem cell populations are responsible for the transplantation engraftment process. Umbilical cord blood (UCB) is usually processed to the total nucleated cell (TNC), but not to the mononuclear cell (MNC) fraction. TNC counts are used to determine UCB unit storage, release for transplantation and correlation with time to engraftment. However, the TNC fraction contains varying concentrations of red blood cells, granulocytes, platelets and other cells that dilute and mask the stem cells from being detected. This does not allow the quality and potency of the stem cells to be reliably measured. METHODS 63 UCB segments and 10 UCB units plus segments were analyzed for the response of both primitive lympho-hematopoietic and primitive hematopoietic stem cells in both the TNC and MNC fractions. The samples were analyzed using a highly sensitive, standardized and validated adenosine triphosphate (ATP) bioluminescence stem cell proliferation assay verified against the colony-forming unit (CFU) assay. Dye exclusion and metabolic viability were also determined. RESULTS Regardless of whether the cells were derived from a segment or unit, the TNC fraction always produced a significantly lower and more variable stem cell response than that derived from the MNC fraction. Routine dye exclusion cell viability did not correspond with metabolic viability and stem cell response. Paired UCB segments produced highly variable results, and the UCB segment did not produce similar results to the unit. DISCUSSION The TNC fraction underestimates the ability and capacity of the stem cells in both the UCB segment and unit and therefore provides an erroneous interpretation of the of the results. Dye exclusion viability can result in false positive values, when in fact the stem cells may be dead or incapable of proliferation. The difference in response between the segment and unit calls into question the ability to use the segment as a representative sample of the UCB unit. It is apparent that present UCB processing and testing methods are inadequate to properly determine the quality and potency of the unit for release and use in a patient.
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Affiliation(s)
- John Patterson
- />Beth-Ell College of Nursing and Health Science, University of Colorado at Colorado Springs, Colorado Springs, Colorado USA
| | - Cally H Moore
- />Department of Biological Engineering, University of Colorado, Boulder, Colorado USA
| | - Emily Palser
- />Department of Biology, University of Colorado at Colorado Springs, Colorado Springs, Colorado USA
| | - Jason C Hearn
- />HemoGenix, Inc, 1485 Garden of the Gods Road, Suite 152, Colorado Springs, CO 80906 USA
| | - Daniela Dumitru
- />HemoGenix, Inc, 1485 Garden of the Gods Road, Suite 152, Colorado Springs, CO 80906 USA
| | - Holli A Harper
- />HemoGenix, Inc, 1485 Garden of the Gods Road, Suite 152, Colorado Springs, CO 80906 USA
| | - Ivan N Rich
- />HemoGenix, Inc, 1485 Garden of the Gods Road, Suite 152, Colorado Springs, CO 80906 USA
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