1
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Murakami MA, Connelly-Smith L, Spitzer T, Kassim AA, Penza SL, Al Malki MM, Mason J, Tourville C, Magliocco B, Barten J, Guidry-Groves H, Margolis J, Devine SM, Rennert WP, Stefanski HE. Bone Marrow Harvest: A White Paper of Best Practices by the NMDP Marrow Alliance. Transplant Cell Ther 2024; 30:663-680. [PMID: 38642840 DOI: 10.1016/j.jtct.2024.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/22/2024]
Abstract
Data on recent bone marrow harvest (BMH) collections from the NMDP has shown that bone marrow (BM) quality has decreased based on total nucleated cell count in the product. To ensure that quality BM products are available to all recipients, the NMDP Marrow Alliance was formed in April 2021 to increase the capability of BM collection centers to safely deliver high-quality products consistently and to identify and disseminate guidelines for performing BMH. This white paper describes the best practices for BMH as defined by the NMDP Marrow Alliance.
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Affiliation(s)
| | - Laura Connelly-Smith
- Division of Hematology, Department of Medicine, University of Washington and Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Thomas Spitzer
- Department of Medicine, Massachusetts General Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Adetola A Kassim
- Department of Hematology and Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Sam L Penza
- Division of Hematology, The Ohio State University James Comprehensive Cancer Center, Columbus, Ohio
| | | | | | | | | | | | | | | | - Steven M Devine
- NMDP, Minneapolis, Minnesota; Center for International Blood and Marrow Transplant Research, National Marrow Donor Program, Minneapolis, Minnesota
| | - Wolfgang P Rennert
- Blood and Marrow Collection Program, MedStar Georgetown University Hospital, Washington, District of Columbia
| | - Heather E Stefanski
- NMDP, Minneapolis, Minnesota; Center for International Blood and Marrow Transplant Research, National Marrow Donor Program, Minneapolis, Minnesota.
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2
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Savran Oguz F, Erol A, Kekik Cinar C, Kivanc D, Suleymanoglu M, Ogret Y, Senturk Ciftci H, Kalayoglu Besisik S. Blood and bone marrow donor registry of Istanbul medical faculty activity and experience in past 3 years : A cross-sectional documentation of TRIS activity: the first blood and marrow registry in Turkey. Cell Tissue Bank 2021; 23:483-488. [PMID: 34655355 PMCID: PMC8520074 DOI: 10.1007/s10561-021-09967-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/22/2021] [Indexed: 12/01/2022]
Abstract
Allogeneic stem cell transplantation (SCT) offers a potential cure for some hematological malignancies. For those patients without a family donor, unrelated donor (MUD) registries serve for identifying the best donor. In the present study, we aimed to give a cross-sectional report of our registry's activity and experience as the first established national MUD registry in the country. The study is retrospective and covers the period of 2016 to 2019. A total of 1855 donor searches were performed, and 642 were included in the study. All data were electronically obtained from the institutional database system. All SCTs were either 10/10 or 9/10 HLA matched and originated from an international registry. The most preferred stem cell source was peripheral blood (70.2%). A quarter of transplants were performed using bone marrow, and cord blood was used with a rate of 1.4%. The pandemic-related problems were similar for the other two national registries. During the pandemic, 71 of 432 patients who were searched for donors underwent stem cell transplant(SCT). The low number was related mostly with postponing of SCTs and/also difficulties in continuing of volunteering and in achievement of stem cells from international registry. During the Covid19 pandemic, the SCT activity of centers decreased according to the national, and international guidelines. The study revealed an organized, and multidirectional capacity of the registry and also the adaptation to unpredicted conditions such as pandemic. On the other hand, there is a need for more effective strategies for donor recruitment and retention programme.
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Affiliation(s)
- Fatma Savran Oguz
- Istanbul Faculty of Medicine, HLA Laboratory, Istanbul University, Istanbul, Turkey. .,Istanbul Faculty of Medicine, Medical Biology Department, Istanbul University, Fatih, Capa, Istanbul, Turkey. .,Blood and Bone Marrow Donor Registry of Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
| | - Ayse Erol
- Istanbul Faculty of Medicine, Medical Biology Department, Istanbul University, Fatih, Capa, Istanbul, Turkey.,Blood and Bone Marrow Donor Registry of Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Cigdem Kekik Cinar
- Istanbul Faculty of Medicine, HLA Laboratory, Istanbul University, Istanbul, Turkey.,Istanbul Faculty of Medicine, Medical Biology Department, Istanbul University, Fatih, Capa, Istanbul, Turkey.,Blood and Bone Marrow Donor Registry of Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Demet Kivanc
- Istanbul Faculty of Medicine, HLA Laboratory, Istanbul University, Istanbul, Turkey.,Istanbul Faculty of Medicine, Medical Biology Department, Istanbul University, Fatih, Capa, Istanbul, Turkey
| | - Mediha Suleymanoglu
- Istanbul Faculty of Medicine, HLA Laboratory, Istanbul University, Istanbul, Turkey.,Istanbul Faculty of Medicine, Medical Biology Department, Istanbul University, Fatih, Capa, Istanbul, Turkey
| | - Yeliz Ogret
- Istanbul Faculty of Medicine, HLA Laboratory, Istanbul University, Istanbul, Turkey.,Istanbul Faculty of Medicine, Medical Biology Department, Istanbul University, Fatih, Capa, Istanbul, Turkey
| | - Hayriye Senturk Ciftci
- Istanbul Faculty of Medicine, HLA Laboratory, Istanbul University, Istanbul, Turkey.,Istanbul Faculty of Medicine, Medical Biology Department, Istanbul University, Fatih, Capa, Istanbul, Turkey
| | - Sevgi Kalayoglu Besisik
- Blood and Bone Marrow Donor Registry of Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.,Istanbul Faculty of Medicine, Internal Medicine Hematology Department, Istanbul University, Istanbul, Turkey
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3
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Bartnik K, Pruszczyk K, Skwierawska K, Król M, Płachta M, Moskowicz A, Zakrzewski T, Urbanowska E, Jędrzejczak WW, Snarski E. Bone marrow harvest in donors with anaemia. Vox Sang 2018; 113:795-802. [PMID: 30191563 DOI: 10.1111/vox.12709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 07/19/2018] [Accepted: 08/07/2018] [Indexed: 01/23/2023]
Abstract
BACKGROUND Bone marrow harvest (BMH) for haematopoietic stem cell transplantation is a well-established procedure. The guidelines of World Marrow Donor Association provide information on donor selection. However, some of the guidelines regarding donors with anaemia prior to harvest lack in supporting data from clinical studies. With this study, we aimed to provide such data. MATERIAL AND METHODS In this retrospective, single-centre study, we analysed the interplay between haemoglobin levels and BMH and BMH impact on haemoglobin levels in a cohort of 149 unrelated BM donors, including 13 subjects with mild anaemia. RESULTS The BMH led to significantly lower decrease in haemoglobin levels in donors with anaemia than in control group (1·79 g/dl vs. 2·56 g/dl, P < 0·0001). The following parameters: BMH volume (ml), BMH volume/donor body weight (ml/kg), total nucleated cells (TNC) in product (×108 ) and TNC/kg recipient body weight in product (×108 /kg) did not differ significantly between those two analysed groups (P > 0·05). Median BM volume harvested from anaemic donors was 16·34 ml/kg; none of them required blood transfusion after BMH. CONCLUSION Mild anaemia prior to BMH does not significantly impact the collection results. The BMH is safe and feasible in donors with mild anaemia.
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Affiliation(s)
- Krzysztof Bartnik
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Katarzyna Pruszczyk
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Kamila Skwierawska
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Małgorzata Król
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Milena Płachta
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Albert Moskowicz
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Tomasz Zakrzewski
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Elżbieta Urbanowska
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | | | - Emilian Snarski
- Department of Hematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
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4
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Pahnke S, Larfors G, Axdorph-Nygell U, Fischer-Nielsen A, Haastrup E, Heldal D, Itälä-Remes M, Johansson JE, Kauppila M, Lenhoff S, Ljungman P, Niittyvuopio R, Sandstedt A, Hägglund H. Short-term side effects and attitudes towards second donation: A comparison of related and unrelated haematopoietic stem cell donors. J Clin Apher 2017; 33:226-235. [PMID: 28833474 DOI: 10.1002/jca.21576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 07/02/2017] [Accepted: 08/01/2017] [Indexed: 11/11/2022]
Abstract
The Nordic Register of Haematopoietic Stem Cell Donors (NRHSD) has registered related and unrelated donors from 10 transplant centres in Sweden, Norway, Finland and Denmark since 1998. We present a prospective, observational study of 1,957 donors, focusing mainly on the differences between related and unrelated donors. Related donors are reported to have more comorbidities, but similar side effects compared with unrelated donors. Side effects after BM or PBSC donation are generally of short duration and in this study no deaths, myocardial infarctions, splenic ruptures, or thromboembolic events are reported. Interestingly, related donors express more hesitancy towards donating again when asked 1 month after donation.
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Affiliation(s)
- Simon Pahnke
- Department of Haematology, Uppsala University Hospital, Uppsala, Sweden.,Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Gunnar Larfors
- Department of Haematology, Uppsala University Hospital, Uppsala, Sweden
| | - Ulla Axdorph-Nygell
- Centre for Apheresis and Stem Cell Processing (CASH), Clinical Immunology/Transfusion Medicine, and Department of Haematology, Karolinska University Hospital, Stockholm, Sweden
| | - Anne Fischer-Nielsen
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Eva Haastrup
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Dag Heldal
- Department of Haematology, Oslo University Hospital, Oslo, Norway
| | - Maija Itälä-Remes
- Stem Cell Transplantation Unit, Turku University Hospital, Turku, Finland
| | - Jan-Erik Johansson
- Department of Haematology and Coagulation, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Marjut Kauppila
- Department of Haematology, Turku University Hospital, Turku, Finland
| | - Stig Lenhoff
- Department of Haematology, Skåne University Hospital, Lund, Sweden
| | - Per Ljungman
- Department of Haematology, Karolinska University Hospital, Division of Haematology, Karolinska Institutet, Stockholm, Sweden.,Department of Allogeneic Stem Cell Transplantation, Karolinska University Hospital, Division of Haematology, Karolinska Institutet, Stockholm, Sweden.,Department of Medicine Huddinge, Karolinska University Hospital, Division of Haematology, Karolinska Institutet, Stockholm, Sweden
| | - Riita Niittyvuopio
- Stem Cell Transplantation Unit, Helsinki University Hospital, Helsinki, Finland
| | - Anna Sandstedt
- Department of Haematology, Linköping University Hospital, Linköping, Sweden
| | - Hans Hägglund
- Department of Haematology, Uppsala University Hospital, Uppsala, Sweden
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5
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Spitzer TR, Sugrue MW, Gonzalez C, O'Donnell P, Confer D, Fuchs E, Pulsipher MA, Schwartz J, Linenberger M. Transfusion practices for bone marrow harvests: a survey analysis from the AABB Bone Marrow Quality Improvement Initiative Working Group. Bone Marrow Transplant 2017; 52:1199-1200. [PMID: 28530670 DOI: 10.1038/bmt.2017.92] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- T R Spitzer
- Massachusetts General Hospital, Boston, MA, USA
| | - M W Sugrue
- University of Florida, Gainesville, FL, USA
| | - C Gonzalez
- Georgetown University Medical Center, Washington, DC, USA
| | - P O'Donnell
- Massachusetts General Hospital, Boston, MA, USA
| | - D Confer
- National Marrow Donor Program, Minneapolis, MN, USA
| | - E Fuchs
- Johns Hopkins University, Baltimore, MD, USA
| | - M A Pulsipher
- Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - J Schwartz
- Columbia University Medical Center, New York, NY, USA
| | - M Linenberger
- University of Washington and Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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6
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Manuel SP, Spitzer TR, Ishizawa Y. Preoperative autologous blood donation in healthy bone marrow donors contributes to pre-procedure anemia. Bone Marrow Transplant 2017; 52:1191-1193. [PMID: 28530672 DOI: 10.1038/bmt.2017.84] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- S P Manuel
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, School of Medicine, San Francisco, CA, USA
| | - T R Spitzer
- Division of Hematology Oncology, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Y Ishizawa
- Department of Anesthesia, Critical Care and Pain Medicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
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7
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Inadvertent completely HLA-mismatched allogeneic unrelated bone marrow transplant: lessons learned. Bone Marrow Transplant 2016; 51:1016-8. [DOI: 10.1038/bmt.2016.59] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Hahn S, Sireis W, Hourfar K, Karpova D, Dauber K, Kempf VAJ, Seifried E, Schmidt M, Bönig H. Effects of storage temperature on hematopoietic stability and microbial safety of BM aspirates. Bone Marrow Transplant 2013; 49:338-48. [PMID: 24185589 DOI: 10.1038/bmt.2013.176] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/06/2013] [Accepted: 09/24/2013] [Indexed: 12/31/2022]
Abstract
Bone marrow (BM) remains a common source for hematopoietic SCT. Due to the transcutaneous approach, contamination with skin bacteria is common. The delay between harvest and transfusion can be considerable, potentially allowing for bacterial proliferation. The optimal transportation temperature, specifically with respect to bacterial growth and consequences thereof for hematopoietic quality, remain undefined. For 72 h, 66 individual BM samples, non-spiked/spiked with different bacteria, stored at 20-24 °C room temperature (RT) or 3-5 °C (cold), were serially analyzed for hematopoietic quality and microbial burden. Under most conditions, hematopoietic quality of BM was equal or better at RT: Typical BM contaminants (P. acnes and S. epidermidis) and E. coli were killed or bacterial proliferation was arrested at RT; hematopoietic quality was not impacted by the contamination. However, several pathogenic bacteria not typically found in BM (S. aureus and K. pneumoniae) proliferated dramatically at RT and impaired hematopoietic quality. Bacterial proliferation was arrested in the cold. The overwhelming majority of BM samples, that is, those that are sterile or contaminated only with skin commensals, will benefit from transportation at RT. Those bacteria that proliferate and perturb hematopoietic quality are not typically found in BM. Our data support recommendations for RT transportation and storage of BM.
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Affiliation(s)
- S Hahn
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany
| | - W Sireis
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany
| | - K Hourfar
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany
| | - D Karpova
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany
| | - K Dauber
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany
| | - V A J Kempf
- Institute for Medical Microbiology and Infection Control, Goethe University Medical Center, Frankfurt, Germany
| | - E Seifried
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany
| | - M Schmidt
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany
| | - H Bönig
- 1] German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine and Immunohematology, Goethe University Medical Center, Frankfurt, Germany [2] Department of Medicine/Hematology, University of Washington, Seattle, WA, USA
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9
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Pingel J, Case C, Amer B, Hornung RA, Schmidt AH. World marrow donor association crisis response, business continuity, and disaster recovery guidelines. Biol Blood Marrow Transplant 2012; 18:1785-9. [PMID: 22967871 DOI: 10.1016/j.bbmt.2012.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 08/07/2012] [Indexed: 10/27/2022]
Abstract
Multiple institutions, such as donor registries, donor centers, transplantation centers, collection centers, and courier companies, are involved in the international exchange of hematopoietic stem cells. The ability to safely and efficiently ensure continued operation of a donor registry relies on an organization's resiliency in the face of an incident that could impede donor search, donor selection, stem cell collection, or transportation. The Quality Assurance Working Group of the World Marrow Donor Association has developed guidelines on how to establish an organizational resiliency program intended for donor registries initiating an emergency preparedness process. These guidelines cover the minimal requirements of preparedness in prevention and mitigation, crisis response, business continuity, and disaster recovery, and the need for continued maintenance and revision. Issues of international cooperation are addressed as well.
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Affiliation(s)
- Julia Pingel
- DKMS German Bone Marrow Donor Center, Tübingen, Germany
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10
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Pamphilon D, Curnow E, Belfield H, Reems JA, McMannis J, Lecchi L, Szczepiorkowski Z, McKenna D. Storage characteristics of cord blood progenitor cells: report of a multicenter study by the cellular therapies team of the Biomedical Excellence for Safer Transfusion (BEST) Collaborative. Transfusion 2010; 51:1284-90. [DOI: 10.1111/j.1537-2995.2010.02967.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Pamphilon DH, Selogie E, Szczepiorkowski ZM. Transportation of cellular therapy products: report of a survey by the cellular therapies team of the Biomedical Excellence for Safer Transfusion (BEST) collaborative. Vox Sang 2010; 99:168-73. [PMID: 20230598 DOI: 10.1111/j.1423-0410.2010.01329.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Most cell therapy products (CTP) are infused or processed shortly after collection but in some cases this may be delayed for up to 48 h. A number of variables such as temperature and cell concentration are of critical importance for the integrity of CTP during this time. MATERIALS AND METHODS We conducted a survey of cellular therapy laboratories to ascertain current practices for CTP transportation. RESULTS There were 194 respondents of whom 90% shipped or received CTP--84% allogeneic, 71% autologous and 62% therapeutic cells. Processing facilities shipped or received the following products--hematopoietic progenitor cells (HPC), Marrow 73%; HPC, Apheresis 90%; HPC, Cord Blood 54% and others 14%. Other CTP included donor lymphocytes, mesenchymal stem cells (MSC), natural killer cells, buffy coat neutrophils and virus-specific cytotoxic T lymphocytes (CTL). More than 70% of respondents believed that it was acceptable for CTP to be held for up to 2 h without checking the temperature or cell density and a similar proportion agreed that putting products in containers to control parameters such as temperature within this time period was unnecessary. The majority of centres shipped or received between 1 and 10 CTP annually and 66% received products taking more than 2 h to ship. Of these, 82% specified the conditions for temperature in transit whilst 57% monitored temperature in transit and 74% of these used a data logger. The temperature range most commonly specified was 18-24 degrees C. The majority of processing facilities did not request an adjustment to the cell density even for products taking more than 2 h to reach their facility. More than 90% of respondents tested HPC for CD34(+) cells, viability and sterility; 40-48% performed colony-forming unit-granulocyte macrophage (CFU-GM) analysis. Only viability was thought by > 50% of respondents to be impacted by temperature, cell density and other parameters. CONCLUSION Understanding current practice will help in the design of future studies for CTP storage and transportation.
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Affiliation(s)
- D H Pamphilon
- NHS Blood and Transplant, North Bristol Park, Northway, Filton, Bristol, UK.
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12
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King RJ, Confer DL, Greinix HT, Halter J, Horowitz M, Schmidt AH, Costeas P, Shaw B, Egeland T. Unrelated hematopoietic stem cell donors as research subjects. Bone Marrow Transplant 2010; 46:10-3. [PMID: 20190845 DOI: 10.1038/bmt.2010.37] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Requests for participation of unrelated stem cell donors in research transplant protocols are becoming more frequent. World Marrow Donor Association calls on donor registries to participate in research activities. Here, we discuss various implications of research participation and make some recommendations as how to make this possible.
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Affiliation(s)
- R J King
- National Marrow Donor Program, Minneapolis, MN, USA
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13
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Galanis PA, Sparos LD, Katostaras T, Velonakis E, Kalokerinou A. Factors that influence Greeks' decision to register as potential bone marrow donors. Transplant Proc 2008; 40:1271-4. [PMID: 18589085 DOI: 10.1016/j.transproceed.2008.03.139] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2007] [Accepted: 03/06/2008] [Indexed: 10/21/2022]
Abstract
Hemopoietic stem cells can be used from bone marrow or blood or umbilical cord blood of matched siblings or appropriately matched unrelated volunteers. Today, large bone marrow registries have been established to help identify volunteer unrelated bone marrow donors for patients lacking a family donor. Despite there being almost 10 million registered potential bone marrow donors (PBMD) worldwide, only 50% of white patients have a suitable bone marrow match. Growth in the number of PBMD increases the likelihood of finding a compatible donor for a patient. The attitudes and knowledge of 250 registered PBMD and 315 not registered PBMD toward bone marrow donation, tissues and organs donation, and blood donation were surveyed, using a questionnaire with 27 items. Multivariate logistic regression identified gender (females more often than males), regular blood donation, having a relative or a friend who has already been registered as PBMD, having a relative or a friend who needs bone marrow transplantation, family discussion about tissue and organ donation, knowledge about bone marrow transplantation, information about bone marrow transplantation, and trust in health professionals were independent predictive factors influencing people's decision to register as PBMD. Knowledge of these factors is important to target recruitment efforts.
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Affiliation(s)
- P A Galanis
- Faculty of Nursing, Laboratory of Clinical Epidemiology, University of Athens, Ampelokipoi, Greece.
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14
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Bochtler W, Maiers M, Oudshoorn M, Marsh SGE, Raffoux C, Mueller C, Hurley CK. World Marrow Donor Association guidelines for use of HLA nomenclature and its validation in the data exchange among hematopoietic stem cell donor registries and cord blood banks. Bone Marrow Transplant 2007; 39:737-41. [PMID: 17438587 DOI: 10.1038/sj.bmt.1705672] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Since the advent of the European Marrow Donor Information System in the first half of the last decade, fully automated data exchange between registry computer systems has been playing an ever-increasing role in the international search for unrelated donors of blood progenitor cells. This exchange, however, was hampered by different local conventions used to present HLA data and complicated by the need to extend the official WHO nomenclature to accommodate the registries' information systems and to cross-validate HLA data obtained with different methods and/or at different loci. The guidelines presented here have been developed by the World Marrow Donor Association to standardize the nomenclature to be used and the validation checks to be applied in the international electronic exchange of HLA-typing data among unrelated volunteer hematopoietic stem cell donor registries and umbilical cord blood banks. Two reference web sites have been designated to maintain and update the approved HLA nomenclature and all the ancillary information needed by the conventions described here.
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Affiliation(s)
- W Bochtler
- Information Technology and Quality Assurance Working Groups of the World Marrow Donor Association, Leiden, The Netherlands
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15
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Guttridge MG, Sidders C, Booth-Davey E, Pamphilon D, Watt SM. Factors affecting volume reduction and red blood cell depletion of bone marrow on the COBE Spectra cell separator before haematopoietic stem cell transplantation. Bone Marrow Transplant 2006; 38:175-81. [PMID: 16770313 DOI: 10.1038/sj.bmt.1705420] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The COBE Spectra is used to volume/red blood cell (RBC) deplete BM before transplantation or cryopreservation. We have audited our results to identify the effect of transit time, refrigerated storage, age and cellular composition on mononuclear cells (MNC) and CD34+ cell recoveries, volume/RBC depletion and neutrophil engraftment. In total, 88 consecutive collections from autologous (n = 25) and allogeneic (n = 63) donors were included. The mean collection volume was 1250 +/- 398 ml with RBC content of 341 +/- 113 ml. The MNC and CD34+ cell recoveries were 83.3 +/- 18.5 and 88.1 +/- 18.9%, respectively, volume depletion was 88.2+/-4.4% and RBC depletion 98.3 +/- 1.8%. Neutrophil engraftment was achieved in 20.1 +/- 6.4 days. Factors affecting MNC and CD34+ cell recoveries were transit time (P = 0.0060), overall age (P < 0.0210) and MNC/CD34+ cell concentrations (P < 0.0313). The presence of crenated RBC also reduced CD34+ cell recovery (P = 0.0028). Refrigerated storage did not adversely affect cell recovery (P > 0.8161) or neutrophil engraftment (P = 0.8959). This study demonstrates that time in transit, overall age, MNC and CD34+ cell concentrations and RBC condition were important factors affecting processing. RBCs show artefacts soon after collection at ambient temperatures and these may interfere with the separation and collection of MNC/CD34+ cells. Refrigeration at 4-6 degrees C during transit and storage may reduce formation of RBC artefacts and maximize MNC and CD34+ cell recoveries.
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Affiliation(s)
- M G Guttridge
- Stem Cells and Immunotherapies Laboratories, National Blood Service - Bristol, NHS Blood and Transplant, Bristol, UK.
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16
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Au WY, Lie AKW, Cheng JW, Liang R, Kwong YL. Long-term donor health and its relationship with outcome of allogeneic hematopoietic stem cell transplantation. Bone Marrow Transplant 2006; 37:451-3. [PMID: 16415890 DOI: 10.1038/sj.bmt.1705274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Data on long-term follow-up of donors for hematopoietic stem cell transplantation (HSCT) are limited. Donors of 612 adult allogeneic HSCT were studied, at a median of 81 (14-181) months post-HSC donation. Nine donors had severe health problems. Five donors died from aggressive malignancies or terminal illness, at a median of 41 (16-57) months post-donation. Notably, all their recipients had leukemic relapses. In contrast, donors of recipients in remission were all living. This observation might be due to an inherent depressed immunosurveillance in the donors, or selection of donors with suboptimal health for desperate patients with poor risks pre-HSCT.
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Affiliation(s)
- W-Y Au
- Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong, China
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17
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Parkkali T, Juvonen E, Volin L, Partanen J, Ruutu T. Collection of autologous blood for bone marrow donation: how useful is it? Bone Marrow Transplant 2005; 35:1035-9. [PMID: 15821763 DOI: 10.1038/sj.bmt.1704967] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The hospital charts of 495 adult bone marrow (BM) donors to adult patients were reviewed to determine how necessary it is to collect autologous blood for marrow donation. An autologous transfusion was given to 79% of the donors. The median total volume of marrow harvested was 900 ml (range 450-1350 ml). The median number of nucleated cells harvested was 3.2 x 10(8)/kg patient weight (range 0.9-7.4 x 10(8)/kg patient weight). On the morning following the harvest, the median haemoglobin (Hb) concentrations were 104 g/l (79-135 g/l) in the female and 122 g/l (89-151 g/l) in the male donors autotransfused, and 96 g/l (75-127 g/l) in the female and 119 g/l (88-141 g/l) in the male donors not autotransfused. The post-donation Hb was lower than 85 g/l in four and lower than 90 g/l in 25 donors. Of the 25 donors with post-harvest Hb lower than 90 g/l, 23 were females and 14 had received an autologous transfusion. This study shows that, with a few exceptions, it is not necessary to collect autologous blood from healthy BM donors before the marrow harvest. The post-donation Hb concentrations do not decrease to levels detrimental to healthy persons whether autologous blood is transfused or not.
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Affiliation(s)
- T Parkkali
- Department of Medicine, Helsinki University Central Hospital, PO Box 340, Helsinki FIN-00029 HUS, Finland.
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18
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Niederwieser D, Gentilini C, Hegenbart U, Lange T, Moosmann P, Pönisch W, Al-Ali H, Raida M, Ljungman P, Tyndall A, Urbano-Ispizua A, Lazarus HM, Gratwohl A. Transmission of donor illness by stem cell transplantation: should screening be different in older donors? Bone Marrow Transplant 2005; 34:657-65. [PMID: 15334048 DOI: 10.1038/sj.bmt.1704588] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
With increasing donor age, the potential of transmitting diseases from donor to recipient reaches new dimensions. Potentially transmittable diseases from donors include infections, congenital disorders, and acquired illnesses like autoimmune diseases or malignancies of hematological or nonhematological origin. While established nonmalignant or malignant diseases might be easy to discover, early-stage hematological diseases like CML, light-chain multiple myelomas, aleukemic leukemias, occult myelodysplastic syndromes and other malignant and nonmalignant diseases might not be detectable by routine screening but only by invasive, new and/or expensive diagnostic tests. In the following article, we propose recommendations for donor work-up, taking into consideration the age of the donors. In contrast to blood transfusions, stem cells from donors with abnormal findings might still be acceptable for HCT, when no other options are available and life expectancy is limited. This issue is discussed in detail in relation to the available donor and stem cell source. Finally, the recommendations presented here aim at harmonized worldwide work-up for donors to insure high standard quality.
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Affiliation(s)
- D Niederwieser
- Department of Internal Medicine II, Division of Hematology and Oncology, University of Leipzig, Philipp Rosenthalstr. 23-25, Leipzig D-4103, Germany.
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19
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Hurley CK, Raffoux C. World Marrow Donor Association: international standards for unrelated hematopoietic stem cell donor registries. Bone Marrow Transplant 2005; 34:103-10. [PMID: 15170173 DOI: 10.1038/sj.bmt.1704542] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
World Marrow Donor Association standards are aimed at enhancing the quality of unrelated volunteer donor hematopoietic stem cell registries assisting transplant physicians in the international search for unrelated donors for their patients. The standards cover: (1) general organization of registries; (2) donor recruitment; (3) donor characterization; (4) information technology; (5) facilitation of search requests; (6) second/subsequent donations; (7) collection/processing/transport of stem cells; (8) follow-up of patient/donor; and (9) financial/legal responsibilities.
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Affiliation(s)
- C K Hurley
- Department of Oncology, Georgetown University Medical Center, Washington, DC 20057, USA.
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20
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Abstract
The article discusses views and recommendations of the World Marrow Donor Association concerning ethical issues related to the donation of hematopoietic stem cell products with respect to recruitment, evaluation, workup, and follow-up of unrelated donors. Particular emphasis is placed upon commitment of individual donors, in particular, with respect to the needs of patients to find HLA-matched donors, who may be asked to donate stem cell and other cell products more than once for given patients.
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Affiliation(s)
- R Bakken
- National Marrow Donor Program, Minneapolis, MN, USA
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21
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Wiegand T, Raffoux C, Hurley CK, Kern M, Oudshoorn M, Raymond J, Cleaver S, Marry E, Muller C. A special report: suggested procedures for international unrelated donor search from the donor registries and quality assurance working groups of the World Marrow Donor Association (WMDA). Bone Marrow Transplant 2004; 34:97-101. [PMID: 15170174 DOI: 10.1038/sj.bmt.1704541] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This special report details the World Marrow Donor Association's recommended procedures regarding the international search for an unrelated donor for hematopoietic stem cell transplantation. The responsibilities of the national hubs, transplant center and donor registry staff are outlined for all actions associated with the preliminary search, formal search, donor confirmatory typing and final donor selection.
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Affiliation(s)
- T Wiegand
- Caitlin Raymond International Registry, Worcester, MA 01655, USA.
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22
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Gahrton G, van Rood JJ, Oudshoorn M. The World Marrow Donor Association (WMDA): its goals and activities. Bone Marrow Transplant 2003; 32:121-4. [PMID: 12838274 DOI: 10.1038/sj.bmt.1704097] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The major goal of the World Marrow Donor Association (WMDA) is to facilitate the transfer of hematopoietic cells for transplantation purposes across international borders. It also has the goal of establishing guidelines on ethical, technical, medical, and financial aspects that concern the donor and donor-cell transfer. It has a Board and five Working Groups, namely the Donor Registry Working Group, the Quality Assurance Group, the Ethic Working Group, the Finance Working Group, and the Clinical Working Group. It has three types of membership, that is, full organizational membership, nonvoting organizational membership, and individual corresponding membership. Current important projects are speeding up the search process, accreditation of registries and collecting information about severe adverse effects in donors.
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Affiliation(s)
- G Gahrton
- Department of Medicine, Karolinska Institute, Huddinge University Hospital, SE-14186 Stockholm, Sweden
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23
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Koopmans EMJW, Schattenberg A, Joosten I, Preijers F, De Kort WLAM. Analysis of 127 stem cell donations of the regional Bone Marrow Donor Bank Europdonor Nijmegen, The Netherlands. Leuk Lymphoma 2003; 44:983-7. [PMID: 12854898 DOI: 10.1080/1042819031000067701] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In December 2000, the Bone Marrow DonorBank Europdonor Nijmegen in The Netherlands celebrated its tenth anniversary. We describe the organisation and activities in the first 10 years of this regional bone marrow donor bank. A concise inquiry was sent to all transplant centres who had received a graft from our donors. Response rate was 88% and data were available from 127 recipients. Three donors donated twice to different patients. Median age of the 124 donors (42 females and 82 males) was 37 years and 30 years for the 127 recipients (48 females and 79 males). Time interval between first request of a blood sample and collection of bone marrow varied from 13 to 695 days (median, 113 days). All but two donors received general anaesthesia for 25-120 min (median; 60 min). Hospital stay has been reduced to 24 h. Most donors experienced pain from the collection sites for 3-5 days. However, 9 donors (7%) suffered from pain for 2-3 weeks. All but two donors (98%) were willing to donate a second time for the same patient and 119 (96%) donors wished to remain in the register. The number of nucleated cells (NC) in the collected marrow varied from 0.2 to 8.3 x 10(8)/kg body weight of the recipient (median, 3.5 x 10(8)/kg) with 6.4-470.0 x 10(4) CFU-GM/kg body weight of the recipient (median, 18.0 x 10(4)/kg body weight). The 3-year projected probability of survival of the 127 recipients transplanted with marrow from donors provided by Bone Marrow Donor Bank Europdonor Nijmegen was 27 +/- 9% (+/-95% CI).
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24
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Abstract
The majority of patients which are eligible for a blood stem cell transplantation from an allogeneic donor do not have a suitable related donor so that an efficient unrelated donor search is a prerequisite for this treatment. Currently, there are over 7 million volunteer donors in the files of 50 registries in the world and in most countries the majority of transplants are performed from a foreign donor. Evidently, computer and communication technology must play a crucial role in the complex donor search process on the national and international level. This article describes the structural elements of the donor search process and discusses major systematic and technical issues to be addressed in the development and evolution of the supporting telematic systems. The theoretical considerations are complemented by a concise overview over the current state of the art which is given by describing the scope, relevance, interconnection and technical background of three major national and international computer appliances: The German Marrow Donor Information System (GERMIS) and the European Marrow Donor Information System (EMDIS) are interoperable business-to-business e-commerce systems and Bone Marrow Donors World Wide (BMDW) is the basic international donor information desk on the web.
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25
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Petzer AL, Speth HG, Hoflehner E, Clausen J, Nachbaur D, Gastl G, Gunsilius E. Breaking the rules? X-ray examination of hematopoietic stem cell grafts at international airports. Blood 2002; 99:4632-3. [PMID: 12036899 DOI: 10.1182/blood.v99.12.4632] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Hematopoietic stem cell grafts from unrelated donors are commonly transported by aircraft. They must not be subjected to x-rays during security checks, which may cause inconvenient discussions between the courier and the airport security staff. We exposed hematopoietic stem cells from mobilized peripheral blood to a widely used x-ray hand-luggage control system. Cell viability as well as growth in vitro of mature progenitor cells (colony-forming cells), primitive progenitor cells (long-term culture-initiating cells), and lymphocytes were not altered even after 10 passages through the hand-luggage control system. Thus, repeated exposure to the low radiation dose of hand-luggage control systems (1.5 +/- 0.6 microSv per exposure) seems to be harmless for hematopoietic stem cells, which should simplify the international transport of stem cell grafts.
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Affiliation(s)
- Andreas L Petzer
- Division of Haematology and Oncology, University Hospital, Innsbruck, Austria.
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26
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Hilbe W, Nussbaumer W, Bonatti H, Thaler J, Niederwieser D, Nachbaur D. Unusual adverse events following peripheral blood stem cell (PBSC) mobilisation using granulocyte colony stimulating factor (G-CSF) in healthy donors. Bone Marrow Transplant 2000; 26:811-3. [PMID: 11042668 DOI: 10.1038/sj.bmt.1702581] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Here, we describe two cases of severe pyogenic infection in healthy donors diagnosed immediately following stem cell mobilisation with G-CSF. In the first donor a painful perianal abscess and in the second one an apical abscess required surgical incision. The reported serious adverse events in the literature are reviewed and the potential pathophysiological role of G-CSF or GM-CSF in augmenting inflammatory processes is discussed. In the light of a rapidly increasing number of related and unrelated peripheral blood stem cell donations the need for more comprehensive donor work-up and follow-up for peripheral blood stem cell donors has to be considered. Bone Marrow Transplantation (2000) 26, 811-813.
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Affiliation(s)
- W Hilbe
- BMT Unit, Dept of Internal Medicine, Innsbruck University Hospital, Innsbruck, Austria
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27
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Petzer AL, Gunsilius E, Zech N, Clausen J, Hoflehner E, Nussbaumer W, Gastl G. Evaluation of optimal survival of primitive progenitor cells (LTC-IC) from PBPC apheresis products after overnight storage. Bone Marrow Transplant 2000; 25:197-200. [PMID: 10673680 DOI: 10.1038/sj.bmt.1702104] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Optimal overnight (ON) storage of PBPC aphereses is becoming an increasingly important issue and different options for storing PBPC products exist. The survival of primitive progenitor cells is of major interest, as recent data suggest that these progenitors are not only important for long-term engraftment but also contribute significantly to the early phase of hematopoietic engraftment after myeloablative therapy. We therefore investigated the survival of primitive progenitor cells (ie long-term culture initiating cells, LTC-IC) before (ie within 2 h after finishing the apheresis procedure) and after ON storage lasting 16 to 20 h. In addition, we compared the % of recovery of LTC-IC with that of mature progenitors (ie colony-forming cells, CFC) and with the % viability of the mononuclear cells in the apheresis product. Aliquots of PBPC aphereses products were tested in collection bags at room temperature (RT), in EDTA tubes both at RT or 4 degrees C +/- the addition of autologous plasma (AP; 2.6-fold the apheresis volume) and +/- the possibility of gas exchange. Mean viable cell counts did not show strong differences between the different storage conditions and were poor predictors for the survival of CFC and LTC-IC. At RT (collection bags, EDTA tubes +/- gas exchange) recoveries (% of input) of both, CFC (18%, 18% and 31%) and LTC-IC (10%, 4%, 17%) were low. The addition of AP at RT improved the survival of CFC and LTC-IC to 66% and 38%, respectively. Optimal recoveries for both types of progenitors (CFC: 99%, LTC-IC: 109%) were obtained at 4 degrees C in the presence of AP. In addition, a good correlation between the survival of CFC and LTC-IC was obtained (r = 0.76) suggesting that the analysis of CFC may also allow some conclusions to be drawn on the survival of LTC-IC. Bone Marrow Transplantation (2000) 25, 197-200.
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Affiliation(s)
- A L Petzer
- Department of Hematology and Oncology, University Hospital Innsbruck, Austria
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28
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Hurley CK, Wade JA, Oudshoorn M, Middleton D, Kukuruga D, Navarrete C, Christiansen F, Hegland J, Ren EC, Andersen I, Cleaver SA, Brautbar C, Raffoux C. A special report: histocompatibility testing guidelines for hematopoietic stem cell transplantation using volunteer donors. Quality Assurance and Donor Registries Working Groups of the World Marrow Donor Association. Hum Immunol 1999; 60:347-60. [PMID: 10363727 DOI: 10.1016/s0198-8859(98)00129-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The World Marrow Donor Association has formulated guidelines for establishing the extent and quality of histocompatibility testing for unrelated donor registries, umbilical cord blood banks, and transplant centers involved in international exchange of hematopoietic stem cells for allogeneic transplantation. Registry and cord blood bank guidelines suggest that, at a minimum, initial HLA typing should be performed for three HLA loci, HLA-A, -B, and -DR, at low resolution/split antigen level. DNA-based testing methods should be utilized for HLA-DR typing. DNA-based testing for HLA-A and -B should replace serologic testing of new volunteer donors and cord blood units as robust protocols and reagents become available to the laboratories. Transplant center guidelines for typing of patient, family and to confirm the HLA types of potential unrelated donors should include, at the minimum, typing HLA-A, B, and -DR loci using primarily DNA-based testing methods at allele level resolution for DRB1 and low resolution/split antigen level for HLA-A and -B. It is strongly recommended that the typing of a patient and the selected donor be performed using the same set of reagents, methodology, and interpretation criteria with fresh tissue samples to ensure HLA identity. Guidelines for laboratory accreditation, approaches to quality assurance and quality control for HLA testing, and suggestions for the format of the HLA database of donor types are also outlined.
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Affiliation(s)
- C K Hurley
- Department of Microbiology and Immunology, Georgetown University Medical School, Washington, DC, USA.
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