SUL-109 Protects Hematopoietic Stem Cells from Apoptosis Induced by Short-Term Hypothermic Preservation and Maintains Their Engraftment Potential

•SUL-109, a newly developed 6-chromanol derivate, is an easy-to-use, nontoxic cell culture additive that provides protection during hypothermic storage of hematopoietic stem cells (HSCs).•SUL-109 improves cell survival of immature CD34+/CD38- cells during hypothermic storage and preserves the multil...

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Published in:Biology of blood and marrow transplantation 2020-04, Vol.26 (4), p.634-642
Main Authors: Aerts-Kaya, Fatima S.F., Visser, Trudi P., Pervin, Burcu, Mammadova, Aynura, Özyüncü, Özgür, Wagemaker, Gerard, Uçkan-Çetinkaya, F. Duygu
Format: Article
Language:English
Subjects:
DMSO
Hematopoietic stem cells
Hypothermic preservation
SUL-109
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Summary:•SUL-109, a newly developed 6-chromanol derivate, is an easy-to-use, nontoxic cell culture additive that provides protection during hypothermic storage of hematopoietic stem cells (HSCs).•SUL-109 improves cell survival of immature CD34+/CD38- cells during hypothermic storage and preserves the multilineage capacity of human CD34+ UCB cells.•SUL-109 effectively lowers reactive oxygen species during hypothermic storage and preserves the engraftment potential of HSCs after hypothermia. The newly developed 6-hydroxychromanol derivate SUL-109 was shown to provide protection during hypothermic storage of several cell lines, but has not been evaluated in hematopoietic stem cells (HSCs). Hypothermic preservation of HSCs would be preferred over short-term cryopreservation to prevent cell loss during freezing/thawing and would be particularly useful for short-term storage, such as during conditioning of patients or transport of HSC transplants. Here we cultured human CD34+ umbilical cord blood (UCB) cells and lineage-depleted (Lin–) Balb/c bone marrow (BM) cells for up to 7 days in serum-free HSC expansion medium with hematopoietic growth factors. SUL-109-containing cultures were stored at 4°C for 3 to 14 days. The UCB cells were tested for viability, cell cycle, and reactive oxygen species (ROS). DMSO-cryopreserved Lin– BM cells or Lin– BM cells maintained for 14 days at 4°C were transplanted into RAG2−/− Balb/c mice and engraftment was followed for 6 months. The addition of SUL-109 during the hypothermic storage of expanded CD34+ UCB cells provided a significant improvement in cell survival of the immature CD34+/CD38- fraction after 7 days of hypothermic storage through scavenging of hypothermia-induced ROS and was able to preserve the multilineage capacity of human CD34+ UCB cells for up to 14 days of cold storage. In addition, SUL-109 protected murine BM Lin– cells from 14 days of hypothermic preservation and maintained their engraftment potential after transplantation in immune-deficient RAG2−/− mice. Our data indicate that SUL-109 is a promising novel chemical for use as a protective agent during cold storage of human and murine HSCs to prevent hypothermia-induced apoptosis and promote cell viability. [Display omitted]
ISSN:1083-8791
1523-6536
DOI:10.1016/j.bbmt.2019.12.770