Strategies to enhance umbilical cord blood stem cell engraftment in adult patients.
نویسندگان
چکیده
Umbilical cord blood (UCB) has been used successfully as a source of hematopoietic stem cells (HSCs) for allogeneic transplantation in children and adults in the treatment of hematologic diseases. However, compared with marrow or mobilized peripheral blood stem cell grafts from adult donors, significant delays in the rates and kinetics of neutrophil and platelet engraftment are noted after UCB transplant. These differences relate in part to the reduced numbers of HSCs in UCB grafts. To improve the rates and kinetics of engraftment of UCB HSC, several strategies have been proposed, including ex vivo expansion of UCB HSCs, addition of third-party mesenchymal cells, intrabone delivery of HSCs, modulation of CD26 expression, and infusion of two UCB grafts. This article will focus on ex vivo expansion of UCB HSCs and strategies to enhance UCB homing as potential solutions to overcome the problem of low stem cell numbers in a UCB graft.
منابع مشابه
Umbilical cord blood transplantation.
Umbilical cord blood transplantation (CBT) has been widely used as an alternative source of hematopoietic cell support for stem cell transplant patients. CBT offers several advantages over traditional stem cell sources, such as immediate availability, absence of risk for donors, lower risk of acute graft-versus-host disease, and a less stringent requirement for human leukocyte antigen matching....
متن کاملNew insights into cord blood stem cell transplantation.
PURPOSE OF REVIEW To review the available clinical and biological advances of umbilical cord blood allogeneic stem cell transplantation in pediatric and adult patients. RECENT FINDINGS Recent large international studies suggested that allogeneic umbilical cord blood transplantation may potentially emerge as the frontline stem cell source for pediatric patients with hematopoietic malignancies ...
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Background and Objective: Nowadays, although umbilical cord blood is a commonly used source of hematopoietic stem cell, its low frequency of these cells is the main factor limiting its clinical application. The transplantation of hematopoietic stem cells derived from placenta tissue along with umbilical cord blood cells of the same sample may be an appropriate approach to solve this problem. In...
متن کاملMild hypoxia and human bone marrow mesenchymal stem cells synergistically enhance expansion and homing capacity of human cord blood CD34+ stem cells
Objective(s): Cord blood (CB) is known as a valuable source of hematopoietic stem cells (HSC). Identifying strategies that enhance expansion and maintain engraftment and homing capacity of HSCs can improve transplant efficiency. In this study, we examined different culture conditions on ex vivo expansion and homing capacity of CB-HSCs. Materials and Methods: In this study, 4-5 different units o...
متن کاملCurrent Strategies to Improve Engraftment in Cord Blood Transplantation
Umbilical cord blood (UCB) remains an important alternative source of hematopoietic stem cells (HSC) for allogeneic transplantation when suitable HLA-matched donors are unavailable. Cord blood (CB) offers many benefits including rapid availability, absence of risk to the donor, and a low incidence of graft-versus-host disease. However, although the overall survival of patients receiving unrelat...
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ورودعنوان ژورنال:
- Expert review of hematology
دوره 3 3 شماره
صفحات -
تاریخ انتشار 2010