Cardiac decellularisation with long-term storage and repopulation with canine peripheral blood progenitor cells

2011 ◽  
Vol 90 (6) ◽  
pp. 1457-1464 ◽  
Author(s):  
Bredon Crawford ◽  
Sandeep Tharian Koshy ◽  
Geeta Jhamb ◽  
Curtis Woodford ◽  
Chistine M. Thompson ◽  
...  
Keyword(s):  
Progenitor Cells ◽  
Peripheral Blood ◽  
Long Term Storage ◽  
Peripheral Blood Progenitor Cells ◽  
Term Storage

scholarly journals Maintenance of transplantation potential in ex vivo expanded CD34(+)- selected human peripheral blood progenitor cells

Blood ◽  
1994 ◽  
Vol 84 (9) ◽  
pp. 2898-2903 ◽  
Author(s):  
R Henschler ◽  
W Brugger ◽  
T Luft ◽  
T Frey ◽  
R Mertelsmann ◽  
...  
Keyword(s):  
Progenitor Cells ◽  
Peripheral Blood ◽  
Large Scale ◽  
Ex Vivo ◽  
Human Peripheral Blood ◽  
Ex Vivo Expansion ◽  
High Dose ◽  
Peripheral Blood Progenitor Cells ◽  
Limiting Dilution

Abstract CD34(+)-selected hematopoietic progenitor cells are being increasingly used for autotransplantation, and recent evidence indicates that these cells can be expanded ex vivo. Of 15 patients with solid tumors undergoing a phase I/II clinical trial using CD34(+)-selected peripheral blood progenitor cells (PBPCs) after high-dose chemotherapy, we analyzed the frequency of long-term culture-initiating cells (LTCIC) as a measure of transplantation potential before and after ex vivo expansion of CD34+ cells. PBPCs were mobilized by combination chemotherapy and granulocyte colony-stimulating factor (G-CSF). The original unseparated leukapheresis preparations, the CD34(+)-enriched transplants, as well as nonabsorbed fractions eluting from the CD34 immunoaffinity columns (Ceprate; CellPro, Bothell, WA) were monitored for their capacity to repopulate irradiated allogeneic stroma in human long-term bone marrow cultures. We found preservation of more than three quarters of fully functional LTCIC in the CD34(+)-selected fractions. Quantitation of LTCIC by limiting dilution analysis showed a 53-fold enrichment of LTCIC from 1/9,075 in the unseparated cells to an incidence of 1/169 in the CD34+ fractions. Thus, in a single apheresis, it was possible to harvest a median of 1.65 x 10(4) LTCIC per kg body weight (range, 0.71 to 3.72). In addition, in six patients, large-scale ex vivo expansions were performed using a five-factor cytokine combination consisting of stem cell factor (SCF), interleukin-1 (IL-1), IL-3, IL-6, and erythropoietin (EPO), previously shown to expand committed progenitor cells. LTCIC were preserved, but not expanded during the culture period. Optimization of ex vivo expansion growth factor requirements using limiting dilution assays for LTCIC estimation indicated that the five-factor combination using SCF, IL-1, IL-3, IL-6, and EPO together with autologous plasma was the most reliable combination securing both high progenitor yield and, at the same time, optimal preservation of LTCIC. Our data suggest that ex vivo-expanded CD34+ PBPCs might be able to allow long-term reconstitution of hematopoiesis.

scholarly journals Polyclonal Long-Term MFGS-gp91phox Marking in Rhesus Macaques after Nonmyeloablative Transplantation with Transduced Autologous Peripheral Blood Progenitor Cells

2006 ◽  
Vol 14 (2) ◽  
pp. 202-211 ◽  
Author(s):  
Sebastian Brenner ◽  
Martin F. Ryser ◽  
Uimook Choi ◽  
Narda Whiting-Theobald ◽  
Eberhard Kuhlisch ◽  
...  
Keyword(s):  
Progenitor Cells ◽  
Peripheral Blood ◽  
Rhesus Macaques ◽  
Peripheral Blood Progenitor Cells

Effects of long-term cryopreservation on peripheral blood progenitor cells

Cytotherapy ◽  
2012 ◽  
Vol 14 (10) ◽  
pp. 1228-1234 ◽  
Author(s):  
Gregory S. Vosganian ◽  
Jill Waalen ◽  
Kevin Kim ◽  
Sejal Jhatakia ◽  
Ethan Schram ◽  
...  
Keyword(s):  
Progenitor Cells ◽  
Peripheral Blood ◽  
Peripheral Blood Progenitor Cells

Long-term storage at −80°C of hematopoietic progenitor cells with 5-percent dimethyl sulfoxide as the sole cryoprotectant

Transfusion ◽  
1999 ◽  
Vol 39 (1) ◽  
pp. 70-73 ◽  
Author(s):  
Antonio Galmés ◽  
Judy Besalduch ◽  
Judy Bargay ◽  
Andres Novo ◽  
Miguel Morey ◽  
...  
Keyword(s):  
Dimethyl Sulfoxide ◽  
Progenitor Cells ◽  
Hematopoietic Progenitor Cells ◽  
Hematopoietic Progenitor ◽  
Long Term Storage ◽  
Term Storage

scholarly journals Maintenance of transplantation potential in ex vivo expanded CD34(+)- selected human peripheral blood progenitor cells

Blood ◽  
1994 ◽  
Vol 84 (9) ◽  
pp. 2898-2903 ◽  
Author(s):  
R Henschler ◽  
W Brugger ◽  
T Luft ◽  
T Frey ◽  
R Mertelsmann ◽  
...  
Keyword(s):  
Progenitor Cells ◽  
Peripheral Blood ◽  
Large Scale ◽  
Ex Vivo ◽  
Human Peripheral Blood ◽  
Ex Vivo Expansion ◽  
High Dose ◽  
Peripheral Blood Progenitor Cells ◽  
Limiting Dilution

CD34(+)-selected hematopoietic progenitor cells are being increasingly used for autotransplantation, and recent evidence indicates that these cells can be expanded ex vivo. Of 15 patients with solid tumors undergoing a phase I/II clinical trial using CD34(+)-selected peripheral blood progenitor cells (PBPCs) after high-dose chemotherapy, we analyzed the frequency of long-term culture-initiating cells (LTCIC) as a measure of transplantation potential before and after ex vivo expansion of CD34+ cells. PBPCs were mobilized by combination chemotherapy and granulocyte colony-stimulating factor (G-CSF). The original unseparated leukapheresis preparations, the CD34(+)-enriched transplants, as well as nonabsorbed fractions eluting from the CD34 immunoaffinity columns (Ceprate; CellPro, Bothell, WA) were monitored for their capacity to repopulate irradiated allogeneic stroma in human long-term bone marrow cultures. We found preservation of more than three quarters of fully functional LTCIC in the CD34(+)-selected fractions. Quantitation of LTCIC by limiting dilution analysis showed a 53-fold enrichment of LTCIC from 1/9,075 in the unseparated cells to an incidence of 1/169 in the CD34+ fractions. Thus, in a single apheresis, it was possible to harvest a median of 1.65 x 10(4) LTCIC per kg body weight (range, 0.71 to 3.72). In addition, in six patients, large-scale ex vivo expansions were performed using a five-factor cytokine combination consisting of stem cell factor (SCF), interleukin-1 (IL-1), IL-3, IL-6, and erythropoietin (EPO), previously shown to expand committed progenitor cells. LTCIC were preserved, but not expanded during the culture period. Optimization of ex vivo expansion growth factor requirements using limiting dilution assays for LTCIC estimation indicated that the five-factor combination using SCF, IL-1, IL-3, IL-6, and EPO together with autologous plasma was the most reliable combination securing both high progenitor yield and, at the same time, optimal preservation of LTCIC. Our data suggest that ex vivo-expanded CD34+ PBPCs might be able to allow long-term reconstitution of hematopoiesis.

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