PMID- 36332632 OWN - NLM STAT- MEDLINE DCOM- 20221216 LR - 20230117 IS - 2213-6711 (Electronic) IS - 2213-6711 (Linking) VI - 17 IP - 12 DP - 2022 Dec 13 TI - The monoculture of cord-blood-derived CD34(+) cells by an automated, membrane-based dynamic perfusion system with a novel cytokine cocktail. PG - 2585-2594 LID - S2213-6711(22)00502-1 [pii] LID - 10.1016/j.stemcr.2022.10.006 [doi] AB - Human leukocyte antigen (HLA)-matched cord blood (CB) transplantation is a procedure for the treatment of certain hematological malignancies, hemoglobinopathies, and autoimmune disorders. However, one of the challenges is to provide a sufficient number of T cell-depleted hematopoietic stem and progenitor cells. Currently, only 4%-5% of the CB units stored in CB banks contain enough CD34(+) cells for engrafting 70-kg patients. To support this clinical need, we have developed an automated expansion protocol for CB-derived CD34(+) cells in the Quantum system's dynamic perfusion bioreactor using a novel cytokine cocktail comprised of stem cell factor (SCF), thrombopoietin (TPO), fms-like tyrosine kinase 3 ligand (Flt-3L), interleukin-3 (IL-3), IL-6, glial cell line-derived neurotrophic factor (GDNF), StemRegenin 1 (SR-1), and a fibronectin-stromal-cell-derived factor-1 (SDF-1)-coated membrane. In an 8-day expansion of a 2 x 10(6) positively selected CD34(+) cell inoculum from 3 donor lineages, the mean cell harvest and cell viability were 1.02 x 10(8) cells and 95.5%, respectively, and the mean frequency of the CD45(+)CD34(+) immunophenotype was 54.3%. The mean differentiated cell frequencies were 0.5% for lymphocytes, 15.8% for neutrophils, and 15.4% for platelets. These results demonstrate that the automated monoculture protocol can support the expansion of CD34(+) cells with minimal lymphocyte residual. CI - Copyright (c) 2022 The Author(s). Published by Elsevier Inc. All rights reserved. FAU - Jones, Mark AU - Jones M AD - Research and Development, Terumo Blood and Cell Technologies, Lakewood, CO 80215, USA. Electronic address: mark.jones@terumobct.com. FAU - Cunningham, Annie AU - Cunningham A AD - Research and Development, Terumo Blood and Cell Technologies, Lakewood, CO 80215, USA. FAU - Frank, Nathan AU - Frank N AD - Research and Development, Terumo Blood and Cell Technologies, Lakewood, CO 80215, USA. FAU - Sethi, Dalip AU - Sethi D AD - Research and Development, Terumo Blood and Cell Technologies, Lakewood, CO 80215, USA. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221103 PL - United States TA - Stem Cell Reports JT - Stem cell reports JID - 101611300 RN - 0 (Cytokines) RN - 0 (Antigens, CD34) RN - 0 (Stem Cell Factor) SB - IM MH - Humans MH - *Fetal Blood MH - *Cytokines/metabolism MH - Hematopoietic Stem Cells/metabolism MH - Cell Culture Techniques/methods MH - Antigens, CD34/metabolism MH - Stem Cell Factor/pharmacology/metabolism MH - Perfusion MH - Cells, Cultured PMC - PMC9768577 OTO - NOTNLM OT - GDNF OT - Quantum system OT - cord-blood-derived CD34(+) cells OT - expansion OT - fibronectin-SDF-1 OT - perfusion membrane bioreactor COIS- Conflict of interests M.J., A.C., N.F., and D.S. are all employees of Terumo Blood and Cell Technologies, Inc. (Lakewood, CO, USA) at the time of manuscript preparation. EDAT- 2022/11/05 06:00 MHDA- 2022/12/17 06:00 PMCR- 2022/11/03 CRDT- 2022/11/04 19:43 PHST- 2022/03/04 00:00 [received] PHST- 2022/10/05 00:00 [revised] PHST- 2022/10/06 00:00 [accepted] PHST- 2022/11/05 06:00 [pubmed] PHST- 2022/12/17 06:00 [medline] PHST- 2022/11/04 19:43 [entrez] PHST- 2022/11/03 00:00 [pmc-release] AID - S2213-6711(22)00502-1 [pii] AID - 10.1016/j.stemcr.2022.10.006 [doi] PST - ppublish SO - Stem Cell Reports. 2022 Dec 13;17(12):2585-2594. doi: 10.1016/j.stemcr.2022.10.006. Epub 2022 Nov 3.