scholarly journals Quality of Red Blood Cells Isolated from Umbilical Cord Blood Stored at Room Temperature

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Mariia Zhurova ◽  
John Akabutu ◽  
Jason Acker

Red blood cells (RBCs) from cord blood contain fetal hemoglobin that is predominant in newborns and, therefore, may be more appropriate for neonatal transfusions than currently transfused adult RBCs. Post-collection, cord blood can be stored at room temperature for several days before it is processed for stem cells isolation, with little known about how these conditions affect currently discarded RBCs. The present study examined the effect of the duration cord blood spent at room temperature and other cord blood characteristics on cord RBC quality. RBCs were tested immediately after their isolation from cord blood using a broad panel of quality assays. No significant decrease in cord RBC quality was observed during the first 65 hours of storage at room temperature. The ratio of cord blood to anticoagulant was associated with RBC quality and needs to be optimized in future. This knowledge will assist in future development of cord RBC transfusion product.

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Jiafei Xi ◽  
Yanhua Li ◽  
Ruoyong Wang ◽  
Yunfang Wang ◽  
Xue Nan ◽  
...  

In vitromodels of human erythropoiesis are useful in studying the mechanisms of erythroid differentiation in normal and pathological conditions. Here we describe an erythroid liquid culture system starting from cord blood derived hematopoietic stem cells (HSCs). HSCs were cultured for more than 50 days in erythroid differentiation conditions and resulted in a more than 109-fold expansion within 50 days under optimal conditions. Homogeneous erythroid cells were characterized by cell morphology, flow cytometry, and hematopoietic colony assays. Furthermore, terminal erythroid maturation was improved by cosculturing with human fetal liver stromal cells. Cocultured erythroid cells underwent multiple maturation events, including decrease in size, increase in glycophorin A expression, and nuclear condensation. This process resulted in extrusion of the pycnotic nuclei in up to 80% of the cells. Importantly, they possessed the capacity to express the adult definitiveβ-globin chain upon further maturation. We also show that the oxygen equilibrium curves of the cord blood-differentiated red blood cells (RBCs) are comparable to normal RBCs. The large number and purity of erythroid cells and RBCs produced from cord blood make this method useful for fundamental research in erythroid development, and they also provide a basis for future production of available RBCs for transfusion.


Transfusion ◽  
2014 ◽  
Vol 55 (1) ◽  
pp. 108-114 ◽  
Author(s):  
Margaret F. Veale ◽  
Geraldine Healey ◽  
Amrita Sran ◽  
Katherine A. Payne ◽  
Majid Zia ◽  
...  

2019 ◽  
Vol 20 (19) ◽  
pp. 4875 ◽  
Author(s):  
Vanegas ◽  
Galindo ◽  
Páez-Gutiérrez ◽  
González-Acero ◽  
Medina-Valderrama ◽  
...  

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.


Blood ◽  
2002 ◽  
Vol 99 (1) ◽  
pp. 364-371 ◽  
Author(s):  
Benny J. Chen ◽  
Xiuyu Cui ◽  
Gregory D. Sempowski ◽  
Maria E. Gooding ◽  
Congxiao Liu ◽  
...  

Umbilical cord blood has been increasingly used as a source of hematopoietic stem cells. A major area of concern for the use of cord blood transplantation is the delay in myeloid and lymphoid recovery. To directly compare myeloid and lymphoid recovery using an animal model of bone marrow and cord blood as sources of stem cells, hematopoietic engraftment and immune recovery were studied following infusion of T-cell–depleted adult bone marrow or full-term fetal blood cells, as a model of cord blood in a murine allogeneic transplantation model (C57BL/6 [H-2b] → BALB/c [H-2d]). Allogeneic full-term fetal blood has poorer radioprotective capacity but greater long-term engraftment potential on a cell-to-cell basis compared with T-cell–depleted bone marrow. Allogeneic full-term fetal blood recipients had decreased absolute numbers of T, B, and dendritic cells compared with bone marrow recipients. Splenic T cells in allogeneic full-term fetal blood recipients proliferated poorly, were unable to generate cytotoxic effectors against third-party alloantigens in vitro, and failed to generate alloantigen-specific cytotoxic antibodies in vivo. In addition, reconstituting T cells in fetal blood recipients had decreased mouse T-cell receptorδ single-joint excision circles compared with bone marrow recipients. At a per-cell level, B cells from fetal blood recipients did not proliferate as well as those found in bone marrow recipients. These results suggest that full-term fetal blood can engraft allogeneic hosts across the major histocompatibility barrier with slower hematopoietic engraftment and impaired immune reconstitution.


2005 ◽  
Vol 12 (3) ◽  
pp. 196-202 ◽  
Author(s):  
Kenichi Teramoto ◽  
Kinji Asahina ◽  
Yuji Kumashiro ◽  
Sei Kakinuma ◽  
Ryoko Chinzei ◽  
...  

Transfusion ◽  
2017 ◽  
Vol 58 (2) ◽  
pp. 423-429 ◽  
Author(s):  
Athinoula Meli ◽  
Vicky Hancock ◽  
Heidi Doughty ◽  
Steve Smedley ◽  
Rebecca Cardigan ◽  
...  

2013 ◽  
Vol 8 (1) ◽  
pp. 82-90 ◽  
Author(s):  
Iwona Grabowska ◽  
Wladyslawa Streminska ◽  
Katarzyna Janczyk-Ilach ◽  
Eugeniusz K. Machaj ◽  
Zygmunt Pojda ◽  
...  

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