scholarly journals Adapting Cord Blood Collection and Banking Standard Operating Procedures for HLA-Homozygous Induced Pluripotent Stem Cells Production and Banking for Clinical Application

2019 ◽  
Vol 8 (4) ◽  
pp. 476 ◽  
Author(s):  
Belén Alvarez-Palomo ◽  
Joaquim Vives ◽  
Ricardo P. Casaroli-Marano ◽  
Susana G. G. Gomez ◽  
Luciano Rodriguez Gómez ◽  
...  

In this article, we will discuss the main aspects to be considered to define standard operation procedures (SOPs) for the creation of an induced pluripotent stem cell (iPSC) bank using cord blood (CB)—or similar cell type—bank guidelines for clinical aims. To do this, we adapt the pre-existing SOP for CB banking that can be complementary for iPSCs. Some aspects of iPSC manufacturing and the particular nature of these cells call for special attention, such as the potential multiple applications of the cells, proper explanation to the donor for consent of use, the genomic stability and the risk of genetic privacy disclosure. Some aspects of the iPSC SOP are solidly established by CB banking procedures, other procedures have good consensus in the scientific and medical community, while others still need to be further debated and settled. Given the international sharing vocation of iPSC banking, there is an urgent need by scientists, clinicians and regulators internationally to harmonize standards and allow future sample interchange between many iPSC bank initiatives that are springing up worldwide.

Transfusion ◽  
2003 ◽  
Vol 43 (8) ◽  
pp. 1174-1176 ◽  
Author(s):  
Pilar Solves ◽  
Rosa Moraga ◽  
Vicente Mirabet ◽  
Luis Larrea ◽  
Ma Angeles Soler

Blood ◽  
2013 ◽  
Vol 122 (12) ◽  
pp. 2047-2051 ◽  
Author(s):  
Jason A. Mills ◽  
Kai Wang ◽  
Prasuna Paluru ◽  
Lei Ying ◽  
Lin Lu ◽  
...  

Key Points Normal induced pluripotent stem cells exhibit donor-specific gene expression signatures and the capacity for hematopoietic development. CNVs acquired during reprogramming or selection of rare CNVs present in the starting cell population may alter iPSC developmental potential.


Transfusion ◽  
1996 ◽  
Vol 36 (10) ◽  
pp. 937-938 ◽  
Author(s):  
G Sirchia ◽  
P Rebulla ◽  
L Lecchi

2021 ◽  
Vol 22 (15) ◽  
pp. 8224
Author(s):  
Linda Krisch ◽  
Gabriele Brachtl ◽  
Sarah Hochmann ◽  
André Cronemberger Andrade ◽  
Michaela Oeller ◽  
...  

Several protocols exist for generating megakaryocytes (MKs) and platelets from human induced pluripotent stem cells (hiPSCs) with limited efficiency. We observed previously that mesoderm induction improved endothelial and stromal differentiation. We, therefore, hypothesized that a protocol modification prior to hemogenic endothelial cell (HEC) differentiation will improve MK progenitor (MKP) production and increase platelet output. We further asked if basic media composition affects MK maturation. In an iterative process, we first compared two HEC induction protocols. We found significantly more HECs using the modified protocol including activin A and CHIR99021, resulting in significantly increased MKs. MKs released comparable platelet amounts irrespective of media conditions. In a final validation phase, we obtained five-fold more platelets per hiPSC with the modified protocol (235 ± 84) compared to standard conditions (51 ± 15; p < 0.0001). The regenerative potency of hiPSC-derived platelets was compared to adult donor-derived platelets by profiling angiogenesis-related protein expression. Nineteen of 24 angiogenesis-related proteins were expressed equally, lower or higher in hiPSC-derived compared to adult platelets. The hiPSC-platelet’s coagulation hyporeactivity compared to adult platelets was confirmed by thromboelastometry. Further stepwise improvement of hiPSC-platelet production will, thus, permit better identification of platelet-mediated regenerative mechanisms and facilitate manufacture of sufficient amounts of functional platelets for clinical application.


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